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| # | Company | Amount | Rank | Status |
|---|---|---|---|---|
| 1 | L1₹31.4 CrAccepted-AOC H PUDUPATTI POST PAPPIREDDIPATTI TALUK DHARMAPURI DISTRICT PIN 636 905 | PAPPIREDDIPATTI | DHARMAPURI | TAMIL NADU | 636905 | ₹31.4 Cr Quoted ₹35.1 Cr | L1 | Accepted-AOC Lowest rate quoted bidder is accepted |
| 2 | L2₹38.1 CrRejected-AOC 11C BHARATHI COLONY MADUKKARAI MARKET COIMBATORE TAMIL NADU 641105 UDYAM TN 03 0003766 | COIMBATORE | TAMIL NADU | 641105 | ₹38.1 Cr | L2 | Rejected-AOC Due to highet rate quoted bidder is rejected |
| Sl No | Description | Qty | Unit | EV Construction L1 | raja&co L2 |
|---|---|---|---|---|---|
| 1.00Operation and Maintenance of 27 Nos of CWSS in Thiruvannamalai Districts including repair and rectification works and supply of chemicals for three years period from 01.04.2026 to 31.03.2029 – e submission | |||||
| 1.01 | Operation and Maintenance of 27 Nos of CWSS in Thiruvannamalai Districts including repair and rectification works and supply of chemicals for three years period from 01.04.2026 to 31.03.2027 | 1 | No | 7,89,67,030.11 ₹7.9 Cr | 10,40,86,464.08 ₹10.4 Cr |
| 1.02 | Operation and Maintenance of 27 Nos of CWSS in Thiruvannamalai Districts including repair and rectification works and supply of chemicals for three years period from 01.04.2027 to 31.03.2028 | 1 | No | 9,15,65,469.89 ₹9.2 Cr | 10,75,43,856.59 ₹10.8 Cr |
| 1.03 | Operation and Maintenance of 27 Nos of CWSS in Thiruvannamalai Districts including repair and rectification works and supply of chemicals for three years period from 01.04.2028 to 31.03.2029 | 1 | No | 12,66,56,284.33 ₹12.7 Cr | 11,16,45,028.83 ₹11.2 Cr |
| 1.04Sub Total | |||||
| 1.05 | Add GST @ 18% on Basic value | 1 | No | 5,34,93,981.18 ₹5.3 Cr | 5,81,89,562.91 ₹5.8 Cr |
Updated dates
Tender Value
₹32.3 Cr
EMD Value
₹25 L
Closing Date
19 Jan 2026, 3:00 pmClosed
Chief Engineer, Vellore
No.8 First East Main Road Gandhi Nagar Vellore -06.
O and M work for 27 Nos in Thiruvannamalai District
2025_TWAD_638148_1
IFB No.22 OandM TVM17122025
Open Tender
Civil Works
1095 days
Tiruvannamalai
Refer Bid Documnt
4 documents required · 4 mandatory
₹0
₹25 L
Vellore
11 Mar 2026
1 Jan 2026
20 Jan 2026
1 Jan 2026
19 Jan 2026
3 Jan 2026
8 Jan 2026
Operation and Maintenance of 27 Nos of CWSS in Thiruvannamalai Districts including repair and rectification works and supply of chemicals for three years period from 01.04.2026 to 31.03.2029 – e submission
Operation and Maintenance of 27 Nos of CWSS in Thiruvannamalai Districts including repair and rectification works and supply of chemicals for three years period from 01.04.2026 to 31.03.2027
Operation and Maintenance of 27 Nos of CWSS in Thiruvannamalai Districts including repair and rectification works and supply of chemicals for three years period from 01.04.2027 to 31.03.2028
Operation and Maintenance of 27 Nos of CWSS in Thiruvannamalai Districts including repair and rectification works and supply of chemicals for three years period from 01.04.2028 to 31.03.2029
Sub Total
Add GST @ 18% on Basic value
Item Rate BoQ
BoQ_Ver4.0
Name of the Bidder/ Bidding Firm / Company :
PRICE SCHEDULE-A1 (This BOQ template must not be modified/replaced by the bidder and the same should be uploaded after filling the relevent columns, else the bidder is liable to be rejected for this tender. Bidders are allowed to enter the Bidder Name and Values only)
NUMBER #
COMBINED WATER SUPPLY SCHEME TO SATHANUR AND 45 OTHER HABITATIONS IN TIRUVANNAMALAI DISTRICT
Operation and Maintenance of the Electro Mechanical installations, equipments, components, pipelines valves and appurtenances, water retaining structures including protecton of all schemee components from damages/ theft undertaking legal actions for such untoward incidents, preventive maintenance, disinfection and deliverance of water as per quality standards and supply of earmarked quantity of water to the beneficiaries as per Annexure .........., carrying out the O&M as per standard operating procedures, Acts and rules in force and as directed by TWAD Board Oficers and excluding cost towards attending leak, burst repair and replacement works to electro mechanical installations consumables for disinfection of water, cleaning of all water retaining structure, electricity . (2.479 MLD x 365 Days = 904.835 MLD)
Repair & Renewals and Leak & Bursts :
Attending Leaks/Bursts in the PVC pipelines of this CWSS for the following items, as per the standard procedure including earthwork excavation, dewatering, removing, relaying, jointing, civil works, cost of materials and all other incidental charges, etc complete within the stipulated time limit as directed by the TWAD Board officers.
PVC 4 KSC Pipes_Minor Leak
90mm OD PVC 4 KSC pipes_Minor Leak
110mm OD PVC 4 KSC pipes_Minor Leak
140mm OD PVC 4 KSC pipes_Minor Leak
PVC 4 KSC Pipes_Major Leak
90mm OD PVC 4 KSC pipes_Major Leak
110mm OD PVC 4 KSC pipes_Major Leak
140mm OD PVC 4 KSC pipes_Major Leak
PVC 6 KSC Pipes_Minor Leak
90mm OD PVC 6 KSC pipes_Minor Leak
110mm OD PVC 6 KSC pipes_Minor Leak
140mm OD PVC 6 KSC pipes_Minor Leak
PVC 6 KSC Pipes_Major Leak
90mm OD PVC 6 KSC pipes_Major Leak
110mm OD PVC 6 KSC pipes_Major Leak
140mm OD PVC 6 KSC pipes_Major Leak
Attending Leaks/Bursts in the HDPE pipelines of this CWSS for the following items, as per the standard procedure including earthwork excavation, dewatering, removing, relaying, jointing by Electro fusion/butt Joint, civil works, cost of materials and all other incidental charges, etc complete within the stipulated time limit as directed by the TWAD Board officers.
HDPE PN 6 Pipes_Minor Leaks
90mm HDPE PN 6 pipes_Minor Leak
110mm HDPE PN 6 pipes_Minor Leak
140mm HDPE PN 6 pipes_Minor Leak
200mm HDPE PN 6 pipes_Minor Leak
HDPE PN 6 Pipes_Major Leaks
90mm HDPE PN 6 pipes_Major Leak
110mm HDPE PN 6 pipes_Major Leak
140mm HDPE PN 6 pipes_Major Leak
200mm HDPE PN 6 pipes_Major Leak
Attending leaks and bursts in GI pipes of various sizes including Supply and delivery of following G I PIPES (MEDIUM) AS PER IS 1239/PART I/2004 and Lowering GI pipes and specials in the trenches and laying to proper grade and alignment, jointing with GI Specials and as directed by the TWAD Officers
80mm GI Pipe leak above GL
100mm GI Pipe leak above GL
125mm GI Pipe leak above GL
150mm GI Pipe leak above GL
Attending joint (Collar) Leaks in the AC pipelines of this CWSS for the following items, as per the standard procedure including earthwork excavation, dewatering, removing, relaying, jointing, civil works, cost of materials and all incidental charges, etc complete within the stipulated time limit as specified in Clause 2.6.4 of General conditions of Contract
AC Pipe_Collar Leak
200mm AC_Collar Leak
250mm AC_Collar Leak
300mm AC_Collar Leak
350mm AC_Collar Leak
AC Pipe_Minor Leak centre crack
200mm AC Pipe_MS Cut Barrel
250mm AC Pipe_MS Cut Barrel
300mm AC Pipe_MS Cut Barrel
350mm AC Pipe_MS Cut Barrel
Attending joint Leaks and center crack in the PSC pipelines of this CWSS for the following items, as per the standard procedure including earthwork excavation, dewatering, removing, relaying, jointing, civil works, cost of materials and all incidental charges, etc complete within the stipulated time limit as specified in Clause 2.6.4 of General conditions of Contract
350mm PSC Pipe Collar Leak
350mm PSC Pipe Centre Crack MS Cut Barrel
Attending Leaks/Bursts in the O-PVC pipelines of this CWSS for the following items, as per the standard procedure including earthwork excavation, dewatering, removing, relaying, jointing, civil works, cost of materials and all incidental charges, etc complete within the stipulated time limit as specified in Clause 2.6.4 of General conditions of Contract
250mm O-PVC Pipe Leak
315mm O-PVC Pipe Leak
Attending Leaks/Bursts in the DI pipelines of this CWSS for the following items, as per the standard procedure including earthwork excavation, dewatering, removing, relaying, jointing, civil works, cost of materials and all incidental charges, etc complete within the stipulated time limit as specified in Clause 2.6.4 of General conditions of Contract
DI Pipes_Minor Leak
350mm DI pipes - Minor leak
Attending Leaks/Bursts in the MS pipelines damaged by highways, local bodies and etc., of this CWSS for the following items, as per the standard procedure including earthwork excavation, dewatering, removing, relaying, jointing, civil works, cost of materials and all incidental charges, etc complete within the stipulated time limit as specified in Clause 2.6.4 of General conditions of Contract
350mm MS pipes_Below GL
Labour for cutting open B.T. Roads (or) Maccadam road for laying water mains - 15 cm thick
For all size Pumping mains
Road Restoration with PCC 1:2:4 using 20 mm HBGS for the Concrete Road cut Portion after the pipes are laid, joined and tested complete and as directed by TWAD Board Officers - 15 cm thick
For all size Pumping mains
Supply and delivery of following sizes of UN PLASTICIZED O-PVC PIPES FOR POTABLE WATER SUPPLY AS PER IS 16647 / 2017 inclusive of transportation charges to stockyard excluding unloading anywhere in Tamilnadu etc, complete and as directed by the TWAD Board officers.
250mm O-PVC PIPE PN 12.5 Class 500
315mm O-PVC PIPE PN 12.5 Class 500
Supply and delivery of following sizes of HDPE PIPES - PE 100 AS PER IS 4984/2016 (Pre-Compounded Resin) inclusive of transportation charges to stockyard excluding unloading anywhere in Tamilnadu etc, complete and as directed by the TWAD Board officers. (SOR VOL II P.14)
200mm HDPE PN 6
140mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
Earth work excavation and depositing on bank with initial lead of 10 m and initial lift of 2m in narrow trenches for laying of pipes for water supply in the following types of soil
Hard stiff clay, stiff black cotton, hard red earth, shales, murrum gravel, stoney earth and earth mixed with small size boulders and hard gravelly soil. (SOR VOL II P.192)
250mm O PVC
315mm O PVC
200mm HDPE PN 6
140mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
Lowering of OPVC Pipes and specials in the trenches and laying to proper grade and alignment and as directed by the TWAD Officers. (SOR VOL II P.161)
250mm O PVC
315mm O PVC
Lowering HDPE pipes and specials to trench and laying to proper grade and alignment and as directed by the TWAD Officers. (SOR VOL II P.171)
200mm HDPE PN 6
140mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
Jointing OPVC-S/S pipes and specials with rubber gaskets (tyton joint) including cost of lubricants. (including cost of jointing materials) (SOR VOL II P.164)
250mm O PVC - 6m Length
315mm O PVC - 6m Length
Jointing HDPE Pipes and Specials by butt fusion welding / electro fusion welding joints using fusion equipment as per ISO 21307-2011 and as per IS 7634 (part-2) : 2012 including cost of hire charges for butt fusion equipment power supply arrangements etc., complete as per directed by TWAD Board Officers. (SOR VOL II P.184)
200mm HDPE PN 6
140mm HDPE PN 6
110mm HDPE PN 6
Refiling with excavated sand or other loose soil complying with standerd specification in layers of 15 cm thick well rammed and consolidated after pipes and specials are laid and tested. (SOR VOL II P.192)
250mm O PVC
315mm O PVC
200mm HDPE PN 6
140mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
Pumpsets
Carrying out the following repair works occuring during the maintenance period in the Electrical, Mechanical and Elctro-mechanical items to bring back the scheme / components into normal running conditition as per standard specification including all labour charges, cost of materials and all incidental charges within the stipulated time limit etc., complete as specified in Clause 2.8 of General conditions of Contract Part II etc as directed by TWAD Board officers
Attending the Rewinding, Repair and Renewal works in various capacity Open Well Submersible Pumpsets
Removing the Submersible pumpset by using tripod set after disconnecting the power supply cable and delivery pipe line fittings
1HP -OWS
3HP -OWS
5HP -OWS
7.5HP -OWS
10HP -OWS
15HP -OWS
Transporting the pumpset from Pump House to work shop.
1HP -OWS
3HP -OWS
5HP -OWS
7.5HP -OWS
10HP -OWS
15HP -OWS
Rewinding the submersible motor using best quality winding wire including cost of wire, Sleeve, other insulating and fibre class materials after deducting the cost of old materials.
1HP -OWS
3HP -OWS
5HP -OWS
7.5HP -OWS
10HP -OWS
15HP -OWS
Reconditioning the worn-out shaft and fittings, impeller and Gun Metal/ SS Bushes including cost of lath work & labour charges etc.,
1HP -OWS
3HP -OWS
5HP -OWS
7.5HP -OWS
10HP -OWS
15HP -OWS
Replacement of carbon type thrust bearing and pumpside Gun Metal Bush including cost of labour charges after deducting the cost of old material
1HP -OWS
3HP -OWS
5HP -OWS
7.5HP -OWS
10HP -OWS
15HP -OWS
Transporting charges for Submersible pumpset from work shop to Pump House after attending repair works.
1HP -OWS
3HP -OWS
5HP -OWS
7.5HP -OWS
10HP -OWS
15HP -OWS
Re-erection of pumpset in the Sump / Well by using tripod set and required Rubber washer and Bolt & Nuts and connecting the power supply cable and delivery pipeline arrangements testing to trial pumping.
1HP -OWS
3HP -OWS
5HP -OWS
7.5HP -OWS
10HP -OWS
15HP -OWS
Attending the Rewinding, Repair and Renewal works in Monoblock Pumpset
3HP_Monoblock
Removing the Monblock Centrifugal Pumpset from the Bed assembly by using contractors tools and materials after disconnecting the power supply cable and delivery pipe line fittings with required dummy plate arrangements.
Transporting the pumpset from the Pumping Station to work shop.
Removing the Burnt winding materials from the stator slots and cleaning the stator and rotor assembly by using contractor tools and materials
Reconditioning the worn-out shaft and fittings, impeller and Rope gland bush including cost of lath work & labour charges etc.,
Rewinding the Monblock Centrifugal Motor using best quality winding wire including cost of wire, Sleeve, other insulating and fibre class materials after deducting the cost of old materials.
Replacement of driven end (No: XXXX) and Non driven end (No:XXXX) Bearings suitable for Monblock Centrifugal Motor including the cost of Bearing and labour charges after deducting the cost of old materials.
Replacement of cooling fan at motor end and Terminal Board for suitable for Monblock Centrifugal Pumpset and labour charges after deducting the cost of old materials.
Transporting charges for Monblock Centrifugal Pumpset from work shop to Pump House after attending repair works.
Re-erection of pumpset in the Sump / Well by using required Rubber washer and Bolt & Nuts and connecting the power supply cable and delivery pipe line arrangements, testing and trial pumping.
Attending the Rewinding and replacement of bearings of Induction Motor for Horizontal Split Casing Pumpsets
20HP -HSC_Motor
Charges for removing the motor from bed after disconnection of power supply cable, Earthing line and Coupling arrangements by using contractor tools and materials.
Transportation charges for conveying the motor from the Booster Station to Our work shop including loading and unloading charges.
Labour Charges for removing the two end side cover with fan arrangements and the damaged driven end and non driven end bearings.
Charges for removing the burnt wires from the rotor assembly and cleaning and checking the slots of rotor and labour charges for rewinding of Centrifugal Squirrel Cage Induction Motor after deducting the cost of old materials and including suppy and delivery of Class ‘F’ Insulation Super enameled Copper wire, required for rewinding and Fiber Glass wire, Fiber Glass Sleeves, Class ‘F’ insulation paper, Copper Socket and FG thread required for rewinding of Squirrel Cage Induction Motor
Labour Charges for reconditioning the worn out shaft for driven end and non driven end bearing seating, knurling, bend checking, and etc.,
Supply and delivery of Driven End and Non Driven End bearings suitable for the required Induction Motor
Labour Charges fixing the DE and NDE bearings correctly and neatly with required lubrications by contractors tools & Materials
Transportation charges for conveying the motor from work shop to Pumping Station
Charges for reassembling the motor with bed and pump coupling, alignment checking connecting power supply cable, including required bolt and Nuts and testing trial running etc.,
Attending the Repair and Reconditioning works of various capacities of Horizontal Split Casing Pumpsets
20HP -HSC_Pump
Charges for removing the motor from bed assembly after dismantling of Coupling arrangements and removing the pump assembly and including the provision of dummy flange arrangements by using contractor tools and materials.
Transportation charges for conveying the Pump assembly from the Pumping Station to work shop including loading and unloading charges.
Labour Charges for removing the impeller by using hydralic system, DE and NDE Bearings
Labour Charges for reconditioning the worn out shaft including welding the shaft to suit the impeller and suit the driven end and non driven end bearing seating, knurling, bend checking and etc.,
Supply, delivery and fixing of Shaft sleeves in Gun metal including machining charges and making key ways after deducting the scrap materials
Balancing of Rotor with impeller both dyanamically and Hydralically by using required dyanamic balancing machine
Supply, delivery and fixing of Gunmetal seal rings for impeller neck including machining charges after deducting the scrap materials
Supply and delivery of Driven End and Non Driven End bearings
Labour Charges fixing the DE and NDE bearings correctly and neatly with required lubrications by contractors tools & Materials
Transportation charges for conveying the Pump assembly from work shop to Pumping Station.
Charges for reassembling the Pump with Motor by using pulley and alignment checking, including required bolt and Nuts and testing trial running etc.,
Attending the Rewinding and replacement of bearings of Induction Motor for Vertical Turbine Pumpset
60HP -VT_Motor
Charges for removing the motor from bed after disconnection of power supply cable, Earthing line and Coupling arrangements by using contractor tools and materials.
Transportation charges for conveying the motor from the Station to Our work shop including loading and unloading charges.
Labour Charges for removing the two end side cover with fan arrangements and Dismantling the damaged NDE Side ball Bearing from the motor after removing the Rachet assembly load bearing safely and Fixing the New ball Bearing in the appropriate place with required lubricants without any damage to the motor shaft and winding after deducting the old damaged materials.
Charges for removing the burnt wires from the rotor assembly and cleaning and checking the slots of rotor and labour charges for rewinding of Centrifugal Squirrel Cage Induction Motor after deducting the cost of old materials and including suppy and delivery of Class ‘F’ Insulation Super enameled Copper wire, required for rewinding and Fiber Glass wire, Fiber Glass Sleeves, Class ‘F’ insulation paper, Copper Socket and FG thread required for rewinding of Squirrel Cage Induction Motor
Labour Charges for reconditioning the worn out shaft for driven end and non driven end bearing seating, knurling, bend checking, and etc.,
Supply and delivery of Non Driven End Deep Grove ball Bearing SKF Make suitable for the Squirrel Gage Induction Motor.
Labour Charges fixing the NDE bearings correctly and neatly with required lubrications by contractors tools & Materials
Transportation charges for conveying the motor from work shop to pumping Station
Charges for reassembling the motor with bed and pump coupling, alignment checking connecting power supply cable, including required bolt and Nuts and testing trial running etc.,
Attending the Repair and Reconditioning works of various capacities of Vertical Turbine Pumps
60HP -VT_Pump
Charges for Removing the Hollow shaft Squirrel cage Induction Motor after disconnecting the Power supply Cable, Discharge Head, Head Shaft and Stuffing Box by using contractor tools at Collector Well / Collection Sump
Charges for removing the all Column pipes of VT Pumpset each 1.5 m / 2.00 m to length and bowl assemblly for attending Pump repair works
Transportation charges for conveying the VT Pump bowl assembly from Collector Well Pump room to Work Shop including usage of trolley along the Foot bridge and Van
Reconditioning of Stuffing Box for providing bronze bush suitable for fixing thr Rope Gland and Head Shaft to avoid frequent damaging of rope and to avoid spreading of more leakage water from the Rope Gland including lath works etc., complete.
Charges for Lathe work of reconditioning of Pump SS Shaft with balancing, SS Bushes and sleeves, charges for Spider bore nd outer dimension phase out lath works, reconditioning of impeller and impeller ring & charges fixing the bearing and bronze bushes in the bowl assembly including correct setting of impeller allignment etc complete
Transportation charges for conveying the VT Pump bowl assembly from our work shop to Collector Well Pump room including usage of trolley along the Foot bridge and Van
Charges for reassembling the all Column pipes of Turbine Pump set and bowl assemblly after attending Pump repair works in the proper allignment after attending the cleaning and painting work in the coloumn pipe and body of the bowl assembly
Re errection of reconditioned stuffing box, new Head shaft, Discharge head and Motor, fixing the Rachet load bearing assembly including filling of required 90 grade oil and Connecting the 440V AC incoming Cable to the Motor Terminal and fixing new rope in the rope gland and Checking Motor Pumpset Alignment and Rotation and testing with load etc.,Complete
SUPPLY AND DELIVERY OF SERVICE CONNECTION ACCESSORIES L.T. 1100V PVC ALUMINIUM ARMOURED UNDER GROUND CABLE WITH ISI MARK
25 Sq.mm 3.5 Core
35 Sq.mm 3.5 Core
50 Sq.mm 3.5 Core
70 Sq.mm 3.5 Core
95 Sq.mm 3.5 Core
120 Sq.mm 3.5 Core
SUPPLY AND DELIVERY OF L.T. CABLES following size sq mm 3 CORE 1.1 KV GRADE ARMOURED ALUMINIUM CONDUCTOR CROSS LINKED POLY ETHYLENE INSULATED PVC SHEATHED CABLES CONFORMING TO IS 7098 (PART I)/1988 WITH ISI MARKING
25 Sq.mm 3 Core
35 Sq.mm 3 Core
50 Sq.mm 3 Core
70 Sq.mm 3Core
SUPPLY AND DELIVERY OF PVC INSULATED AND SHEATHED following sq mm 3 CORE FLAT TYPE COPPER CABLE CONFORMING TO IS 694/1989
SUPPLY AND DELIVERY OF 150mm dia Pressure Gauge and Vaccum guage including all accessories as per specification (For Suction and Delivery to be mounted on wall on Teak Wood Board)
Supply, delivey and fixing of MOULDED CASE CIRCUIT BREAKER (MCCB) WITH THERMO MAGNETIC RELEASE - 4 Pole
Range - 63/100A
Range - 125A
Range - 160A
Range - 250A
Supply, delivey and fixing of RATE FOR MIXED DI-ELECTRIC CAPACITOR WITH TNEB TEST CERTIFICATE WITH ACCESSORIES INCLUDING BANKING CONFORMIING TO IS 2834.
Supply, delivey and fixing of Electro magnetic contactors of suitable capacity in AC Three Phase rating, conforming to IS/IEC 60947-4-1.
Supply, delivey and fixing of Overload Relays: Directly operated Bimetallic Thermal overload relay which operates in case of overload and also in case of under voltage with manual and auto reset mode.
Supply, delivey and fixing of Preventer – Single Phasing - Electric Motor protection device against single phasing. The device should protect the motor against single phasing, reverse phasing and unbalance supply. The device should be suitable for any auxillary device and have provisions for mounting in panel boards. Operate without need of any auxiliary supply.
Electric Motor protection device against dry running. The device should protect the motor against Dry running. The device should be suitable for any auxillary device and have provisions for mounting in panel boards. Operate without need of any auxiliary supply
Supply, delivey and fixing of FUSE UNITS (ANCHOR /EQUIVALENT)
63 Amps Porcelain fuse unit (500 V)
100 Amps Porcelain fuse unit (500 V)
200 Amps Porcelain fuse unit (500 V)
Supply, delivey and fixing of CHANGE OVER SWITCHES
16 Amps three phase 500 V 4 pole Change over switch
32 Amps three phase 500 V 4 pole Change over switch
63 Amps three phase 500 V 4 pole Change over switch
100 Amps three phase 500 V 4 pole Change over switch
125 Amps three phase 500 V 4 pole Change over switch
Supply, delivey and fixing of PVC INSULATED SINGLE CORE MULTI STRAND FIRE RETARDANT FLEXIBLE COPPER CABLE WITH ISI MARK CONFORMING TO IS
Supply, delivey and fixing of HRC - FUSES - HIGHER END
HRC - 16 Amps
HRC - 32 Amps
HRC - 63 Amps
HRC - 125 Amps
HRC - 160 Amps
HRC - 200 Amps
Supply and delivery of the following Electrical Works :consumable items at the site of work to carryout the general maintenace works
Voltmeter Digital - Three Phase Class 1-AC
Ammeter Digital - Three Phase Class 1-1A
20W 4 Feet LED Fitting with LED (Higher end)
LED OUTDOOR FITTINGS (LIGHT EMITTING DIODE) LOWER END 25W LED Street Light Fitting with LED
Supply and delivery of the following consumable items for Pump Set repairs at the site of work to carryout the general maintenace works
50mm GM Gate valve
65mm GM Gate valve
80mm GM Gate valve
100mm GM Gate valve
R I Sheet
Bolts and Nuts - All sizes
50mm GI Pipe
65mm GI Pipe
80mm GI Pipe
100mm GI pipe
125mm GI pipe
150mm GI pipe
Supply, delivery and fixing of DI D/F Gate sluice/scour valves (soft seated) resilient seated soft sealing Gate Valves(Sluice Valves) with body Bonnet of Ductile cast iron of Grade GGG 40 or equivalent grade, Wedge fully rubber lined with EPDM replaceable spindle nut without gland packing and with 3 O- Ring protection on the shaft and seals of NBR and the valves should be of Vacuum tight and 100% leak proof with face to face dimensions as per BS 5163- 89/ISI 14846-2000/DIN 3202 F4. All the valves should be with electrostatic powder coating both inside and out side with pocket less straight through body passage. All the valves are to be compatible for buried application with pressure rating PN 10/16 and with 5 years warranty.
100mm DI Gate Valve
150mm DI Gate Valve
200mm DI Gate Valve
250mm DI Gate Valve
300mm DI Gate Valve
Manufacture, Supply and Delivery of Tamper proof DI single chamber double orifice triple function (ventilating, admiting & ventilating during operation) air release valve with pressure rating PN 10/16 with body and cover made of Ductile Iron of Grade GGG 40 or GGG 50, conforming to IS 1865 with Food Grade Epoxy Powder coating (EP-P) inside and for outside of colour blue RAL 5005. All internal parts such as float, shell etc., cover bolts, made of Austenitic alloy steel of SS AISI 304/316. The float shall be made of Polytetrafluroethylene/ Austenitic alloy steel of AISI 304/316. Gaskets and seals of EPDM / Neoprene rubber for TWAD Board works anywhere in Tamil Nadu and with 5 years warranty
50mm DI Air Valve
80mm DI Air Valve
Supply, delivey and fixing of C.I. DOUBLE AIR VALVE AS PER ISI 14845/2000 AND WITH 5 YEARS WARRANTY
40mm CI Air Valve
50mm CI Air Valve
80mm CI Air Valve
SUMP CLEANING
Cleaning of all storage points like sumps, elevated reservoirs of various capacities available in this scheme at a frequency of once in two months including scrapping the inner side of compartment completely, scouring / dewatering / desilting using required machineries, materials, labour and all other incidental charges, application of bleaching powder/ solution etc complete.
For 75001 to 100000 lit cap sump
For 175001 to 200000 lit cap sump
For 200001 to 300000 lit cap sump
Desilting light or sandysoil or silt from collection well below water level including the charges for special tools & plants and air compressor etc complete
Supply, delivery and application of disinfection dosages as per standard norms / guidelines including cost of all disinfectents (Such as bleaching powder, chlorine cylinder, silver ionization rods, sodium hypochlorite solution, common salt as applicable to this CWSS), labour charges and all incidental charges for disinfection of the water supplied from this CWSS to ensure the portable quality of disinfected water at all delivery points / tail ends, testing of water samples including additional / required / instructed dosage during the period of Flood/ Calamities etc., complete.
Supply delivery of Bleaching Powder as per Relevant IS Specification
Supply delivery of Liquid Chlorine as per Relevant IS Specification
Supply delivery of Alum as per Relevant IS Specification
COMBINED WATER SUPPLY SCHEME TO VANAPURAM--LADAVARAM AND 88 OTHER HABITATIONS IN TIRUVANNAMALAI DISTRICT
Operation and Maintenance of the Electro Mechanical installations, equipments, components, pipelines valves and appurtenances, water retaining structures including protecton of all schemee components from damages/ theft undertaking legal actions for such untoward incidents, preventive maintenance, disinfection and deliverance of water as per quality standards and supply of earmarked quantity of water to the beneficiaries as per Annexure .........., carrying out the O&M as per standard operating procedures, Acts and rules in force and as directed by TWAD Board Oficers and excluding cost towards attending leak, burst repair and replacement works to electro mechanical installations consumables for disinfection of water, cleaning of all water retaining structure, electricity .
Repair & Renewals and Leak & Bursts :
Attending Leaks in the PVC pipelines of this CWSS for the following items, as per the standard procedure including earthwork excavation, dewatering, removing, relaying, jointing, civil works, cost of materials and all other incidental charges, etc complete within the stipulated time limit as directed by the TWAD Board officers.
PVC 4 KSC Pipes_Minor Leak
63mm OD PVC 4 KSC pipes_Minor Leak
75mm OD PVC 4 KSC pipes_Minor Leak
90mm OD PVC 4 KSC pipes_Minor Leak
110mm OD PVC 4 KSC pipes_Minor Leak
140mm OD PVC 4 KSC pipes_Minor Leak
200mm OD PVC 4 KSC pipes_Minor Leak
250mm OD PVC 4 KSC pipes_Major Leak
PVC 4 KSC Pipes_Major Leak
63mm OD PVC 4 KSC pipes_Major Leak
75mm OD PVC 4 KSC pipes_Major Leak
90mm OD PVC 4 KSC pipes_Major Leak
110mm OD PVC 4 KSC pipes_Major Leak
140mm OD PVC 4 KSC pipes_Major Leak
200mm OD PVC 4 KSC pipes_Major Leak
250mm OD PVC 4 KSC pipes_Major Leak
PVC 6 KSC Pipes_Minor Leak
50mm OD PVC 6 KSC pipes_Minor Leak
75mm OD PVC 6 KSC pipes_Minor Leak
90mm OD PVC 6 KSC pipes_Minor Leak
110mm OD PVC 6 KSC pipes_Minor Leak
140mm OD PVC 6 KSC pipes_Minor Leak
200mm OD PVC 6 KSC pipes_Minor Leak
250mm OD PVC 6 KSC pipes_Major Leak
PVC 6 KSC Pipes_Major Leak
50mm OD PVC 6 KSC pipes_Major Leak
75mm OD PVC 6 KSC pipes_Major Leak
90mm OD PVC 6 KSC pipes_Major Leak
110mm OD PVC 6 KSC pipes_Major Leak
140mm OD PVC 6 KSC pipes_Major Leak
200mm OD PVC 6 KSC pipes_Major Leak
250mm OD PVC 6 KSC pipes_Major Leak
Attending Leaks/Bursts in the HDPE pipelines of this CWSS for the following items, as per the standard procedure including earthwork excavation, dewatering, removing, relaying, jointing by Electro fusion/butt Joint, civil works, cost of materials and all other incidental charges, etc complete within the stipulated time limit as directed by the TWAD Board officers.
HDPE PN 6 Pipes_Minor Leaks
63mm HDPE PN 6 pipes_Minor Leak
75mm HDPE PN 6 pipes_Minor Leak
90mm HDPE PN 6 pipes_Minor Leak
110mm HDPE PN 6 pipes_Minor Leak
140mm HDPE PN 6 pipes_Minor Leak
200mm HDPE PN 6 pipes_Minor Leak
HDPE PN 6 Pipes_Major Leaks
63mm HDPE PN 6 pipes_Major Leak
75mm HDPE PN 6 pipes_Major Leak
90mm HDPE PN 6 pipes_Major Leak
110mm HDPE PN 6 pipes_Major Leak
140mm HDPE PN 6 pipes_Major Leak
200mm HDPE PN 6 pipes_Major Leak
Attending leaks and bursts in GI pipes of various sizes including Supply and delivery of following G I PIPES (MEDIUM) AS PER IS 1239/PART I/2004 and Lowering GI pipes and specials in the trenches and laying to proper grade and alignment, jointing with GI Specials and as directed by the TWAD Officers
50mm GI Pipe leak above GL
65mm GI Pipe leak above GL
80mm GI Pipe leak above GL
100mm GI Pipe leak above GL
125mm GI Pipe leak above GL
150mm GI Pipe leak above GL
Attending Leaks/Bursts in the O-PVC pipelines of this CWSS for the following items, as per the standard procedure including earthwork excavation, dewatering, removing, relaying, jointing, civil works, cost of materials and all incidental charges, etc complete within the stipulated time limit as specified in Clause 2.6.4 of General conditions of Contract
250mm O-PVC Pipe Leak
Attending Leaks/Bursts in the DI pipelines of this CWSS for the following items, as per the standard procedure including earthwork excavation, dewatering, removing, relaying, jointing, civil works, cost of materials and all incidental charges, etc complete within the stipulated time limit as specified in Clause 2.6.4 of General conditions of Contract
DI Pipes_Minor Leak
150mm DI pipes - Minor leak
200mm DI pipes - Minor leak
250mm DI pipes - Minor leak
DI Pipes_Major Leak
150mm DI pipes - Major leak
200mm DI pipes - Major leak
250mm DI pipes - Major leak
Labour for cutting open B.T. Roads (or) Maccadam road for laying water mains - 15 cm thick (SOR VOL II P.195)
For all size Pumping mains
Road Restoration with PCC 1:2:4 using 20 mm HBGS for the Concrete Road cut Portion after the pipes are laid, joined and tested complete and as directed by TWAD Board Officers - 15 cm thick
For all size Pumping mains
Supply and delivery of following sizes of UN PLASTICIZED O-PVC PIPES FOR POTABLE WATER SUPPLY AS PER IS 16647 / 2017 inclusive of transportation charges to stockyard excluding unloading anywhere in Tamilnadu etc, complete and as directed by the TWAD Board officers. (SOR VOL II P.11)
250mm O-PVC PIPE PN 12.5 Class 500
Supply and delivery of following sizes of HDPE PIPES - PE 100 AS PER IS 4984/2016 (Pre-Compounded Resin) inclusive of transportation charges to stockyard excluding unloading anywhere in Tamilnadu etc, complete and as directed by the TWAD Board officers. (SOR VOL II P.14)
200mm HDPE PN 6
140mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
75mm HDPE PN 6
63mm HDPE PN 6
Earth work excavation and depositing on bank with initial lead of 10 m and initial lift of 2m in narrow trenches for laying of pipes for water supply in the following types of soil
Hard stiff clay, stiff black cotton, hard red earth, shales, murrum gravel, stoney earth and earth mixed with small size boulders and hard gravelly soil. (SOR VOL II P.192)
250mm O PVC
200mm HDPE PN 6
140mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
75mm HDPE PN 6
63mm HDPE PN 6
Lowering of OPVC Pipes and specials in the trenches and laying to proper grade and alignment and as directed by the TWAD Officers. (SOR VOL II P.161)
250mm O PVC
Lowering HDPE pipes and specials to trench and laying to proper grade and alignment and as directed by the TWAD Officers. (SOR VOL II P.171)
200mm HDPE PN 6
140mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
75mm HDPE PN 6
63mm HDPE PN 6
Jointing OPVC-S/S pipes and specials with rubber gaskets (tyton joint) including cost of lubricants. (including cost of jointing materials) (SOR VOL II P.164)
250mm O PVC - 6m Length
Jointing HDPE Pipes and Specials by butt fusion welding / electro fusion welding joints using fusion equipment as per ISO 21307-2011 and as per IS 7634 (part-2) : 2012 including cost of hire charges for butt fusion equipment power supply arrangements etc., complete as per directed by TWAD Board Officers. (SOR VOL II P.184)
200mm HDPE PN 6
140mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
75mm HDPE PN 6
63mm HDPE PN 6
Refiling with excavated sand or other loose soil complying with standerd specification in layers of 15 cm thick well rammed and consolidated after pipes and specials are laid and tested. (SOR VOL II P.192)
250mm O PVC
200mm HDPE PN 6
140mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
75mm HDPE PN 6
63mm HDPE PN 6
Pumpsets
Carrying out the following repair works occuring during the maintenance period in the Electrical, Mechanical and Elctro-mechanical items to bring back the scheme / components into normal running conditition as per standard specification including all labour charges, cost of materials and all incidental charges within the stipulated time limit etc., complete as specified in Clause 2.8 of General conditions of Contract Part II etc as directed by TWAD Board officers
Attending the Rewinding, Repair and Renewal works in various capacity Open Well Submersible Pumpsets
Removing the Submersible pumpset by using tripod set after disconnecting the power supply cable and delivery pipe line fittings
1HP -OWS
2HP -OWS
3HP -OWS
5HP -OWS
7.5HP -OWS
10HP -OWS
20HP -OWS
40HP -OWS
Transporting the pumpset from Pump House to work shop.
1HP -OWS
2HP -OWS
3HP -OWS
5HP -OWS
7.5HP -OWS
10HP -OWS
20HP -OWS
40HP -OWS
Rewinding the submersible motor using best quality winding wire including cost of wire, Sleeve, other insulating and fibre class materials after deducting the cost of old materials.
1HP -OWS
2HP -OWS
3HP -OWS
5HP -OWS
7.5HP -OWS
10HP -OWS
20HP -OWS
40HP -OWS
Reconditioning the worn-out shaft and fittings, impeller and Gun Metal/ SS Bushes including cost of lath work & labour charges etc.,
1HP -OWS
2HP -OWS
3HP -OWS
5HP -OWS
7.5HP -OWS
10HP -OWS
20HP -OWS
40HP -OWS
Replacement of carbon type thrust bearing and pumpside Gun Metal Bush including cost of labour charges after deducting the cost of old material
1HP -OWS
2HP -OWS
3HP -OWS
5HP -OWS
7.5HP -OWS
10HP -OWS
20HP -OWS
40HP -OWS
Transporting charges for Submersible pumpset from work shop to Pump House after attending repair works.
1HP -OWS
2HP -OWS
3HP -OWS
5HP -OWS
7.5HP -OWS
10HP -OWS
20HP -OWS
40HP -OWS
Re-erection of pumpset in the Sump / Well by using tripod set and required Rubber washer and Bolt & Nuts and connecting the power supply cable and delivery pipeline arrangements testing to trial pumping.
1HP -OWS
2HP -OWS
3HP -OWS
5HP -OWS
7.5HP -OWS
10HP -OWS
20HP -OWS
40HP -OWS
Attending the Rewinding, Repair and Renewal works in Monoblock Pumpset
3HP_Monoblock
Removing the Monblock Centrifugal Pumpset from the Bed assembly by using contractors tools and materials after disconnecting the power supply cable and delivery pipe line fittings with required dummy plate arrangements.
Transporting the pumpset from the Pumping Station to work shop.
Removing the Burnt winding materials from the stator slots and cleaning the stator and rotor assembly by using contractor tools and materials
Reconditioning the worn-out shaft and fittings, impeller and Rope gland bush including cost of lath work & labour charges etc.,
Rewinding the Monblock Centrifugal Motor using best quality winding wire including cost of wire, Sleeve, other insulating and fibre class materials after deducting the cost of old materials.
Replacement of driven end (No: XXXX) and Non driven end (No:XXXX) Bearings suitable for Monblock Centrifugal Motor including the cost of Bearing and labour charges after deducting the cost of old materials.
Replacement of cooling fan at motor end and Terminal Board for suitable for Monblock Centrifugal Pumpset and labour charges after deducting the cost of old materials.
Transporting charges for Monblock Centrifugal Pumpset from work shop to Pump House after attending repair works.
Re-erection of pumpset in the Sump / Well by using required Rubber washer and Bolt & Nuts and connecting the power supply cable and delivery pipe line arrangements, testing and trial pumping.
SUPPLY AND DELIVERY OF SERVICE CONNECTION ACCESSORIES L.T. 1100V PVC ALUMINIUM ARMOURED UNDER GROUND CABLE WITH ISI MARK
25 Sq.mm 3.5 Core
35 Sq.mm 3.5 Core
50 Sq.mm 3.5 Core
70 Sq.mm 3.5 Core
SUPPLY AND DELIVERY OF L.T. CABLES following size sq mm 3 CORE 1.1 KV GRADE ARMOURED ALUMINIUM CONDUCTOR CROSS LINKED POLY ETHYLENE INSULATED PVC SHEATHED CABLES CONFORMING TO IS 7098 (PART I)/1988 WITH ISI MARKING
25 Sq.mm 3 Core
35 Sq.mm 3 Core
SUPPLY AND DELIVERY OF PVC INSULATED AND SHEATHED following sq mm 3 CORE FLAT TYPE COPPER CABLE CONFORMING TO IS 694/1989
SUPPLY AND DELIVERY OF 150mm dia Pressure Gauge and Vaccum guage including all accessories as per specification (For Suction and Delivery to be mounted on wall on Teak Wood Board)
Supply, delivey and fixing of MOULDED CASE CIRCUIT BREAKER (MCCB) WITH THERMO MAGNETIC RELEASE - 4 Pole
Range - 63/100A
Range - 125A
Supply, delivey and fixing of RATE FOR MIXED DI-ELECTRIC CAPACITOR WITH TNEB TEST CERTIFICATE WITH ACCESSORIES INCLUDING BANKING CONFORMIING TO IS 2834.
Supply, delivey and fixing of Electro magnetic contactors of suitable capacity in AC Three Phase rating, conforming to IS/IEC 60947-4-1.
Supply, delivey and fixing of Overload Relays: Directly operated Bimetallic Thermal overload relay which operates in case of overload and also in case of under voltage with manual and auto reset mode.
Supply, delivey and fixing of Preventer – Single Phasing - Electric Motor protection device against single phasing. The device should protect the motor against single phasing, reverse phasing and unbalance supply. The device should be suitable for any auxillary device and have provisions for mounting in panel boards. Operate without need of any auxiliary supply.
Electric Motor protection device against dry running. The device should protect the motor against Dry running. The device should be suitable for any auxillary device and have provisions for mounting in panel boards. Operate without need of any auxiliary supply
Supply, delivey and fixing of FUSE UNITS (ANCHOR /EQUIVALENT)
63 Amps Porcelain fuse unit (500 V)
100 Amps Porcelain fuse unit (500 V)
200 Amps Porcelain fuse unit (500 V)
Supply, delivey and fixing of CHANGE OVER SWITCHES
16 Amps three phase 500 V 4 pole Change over switch
32 Amps three phase 500 V 4 pole Change over switch
63 Amps three phase 500 V 4 pole Change over switch
100 Amps three phase 500 V 4 pole Change over switch
Supply, delivey and fixing of PVC INSULATED SINGLE CORE MULTI STRAND FIRE RETARDANT FLEXIBLE COPPER CABLE WITH ISI MARK CONFORMING TO IS
Supply, delivey and fixing of HRC - FUSES - HIGHER END
HRC - 16 Amps
HRC - 32 Amps
HRC - 63 Amps
HRC - 125 Amps
Supply and delivery of the following Electrical Works :consumable items at the site of work to carryout the general maintenace works
Voltmeter Digital - Three Phase Class 1-AC
Ammeter Digital - Three Phase Class 1-1A
20W 4 Feet LED Fitting with LED (Higher end)
LED OUTDOOR FITTINGS (LIGHT EMITTING DIODE) LOWER END 25W LED Street Light Fitting with LED
Supply and delivery of the following consumable items for Pump Set repairs at the site of work to carryout the general maintenace works
50mm GM Gate valve
65mm GM Gate valve
80mm GM Gate valve
100mm GM Gate valve
R I Sheet
Bolts and Nuts - All sizes
50mm GI Pipe
65mm GI Pipe
80mm GI Pipe
100mm GI pipe
125mm GI pipe
150mm GI pipe
Supply, delivery and fixing of DI D/F Gate sluice/scour valves (soft seated) resilient seated soft sealing Gate Valves(Sluice Valves) with body Bonnet of Ductile cast iron of Grade GGG 40 or equivalent grade, Wedge fully rubber lined with EPDM replaceable spindle nut without gland packing and with 3 O- Ring protection on the shaft and seals of NBR and the valves should be of Vacuum tight and 100% leak proof with face to face dimensions as per BS 5163- 89/ISI 14846-2000/DIN 3202 F4. All the valves should be with electrostatic powder coating both inside and out side with pocket less straight through body passage. All the valves are to be compatible for buried application with pressure rating PN 10/16 and with 5 years warranty.
100mm DI Gate Valve
150mm DI Gate Valve
200mm DI Gate Valve
250mm DI Gate Valve
Manufacture, Supply and Delivery of Tamper proof DI single chamber double orifice triple function (ventilating, admiting & ventilating during operation) air release valve with pressure rating PN 10/16 with body and cover made of Ductile Iron of Grade GGG 40 or GGG 50, conforming to IS 1865 with Food Grade Epoxy Powder coating (EP-P) inside and for outside of colour blue RAL 5005. All internal parts such as float, shell etc., cover bolts, made of Austenitic alloy steel of SS AISI 304/316. The float shall be made of Polytetrafluroethylene/ Austenitic alloy steel of AISI 304/316. Gaskets and seals of EPDM / Neoprene rubber for TWAD Board works anywhere in Tamil Nadu and with 5 years warranty
50mm DI Air Valve
80mm DI Air Valve
Supply, delivey and fixing of C.I. DOUBLE AIR VALVE AS PER ISI 14845/2000 AND WITH 5 YEARS WARRANTY
40mm CI Air Valve
50mm CI Air Valve
80mm CI Air Valve
SUMP CLEANING
Cleaning of all storage points like sumps, elevated reservoirs of various capacities available in this scheme at a frequency of once in two months including scrapping the inner side of compartment completely, scouring / dewatering / desilting using required machineries, materials, labour and all other incidental charges, application of bleaching powder/ solution etc complete.
For 75001 to 100000 lit cap sump
For 125001 to 150000 lit cap sump
For 175001 to 200000 lit cap sump
For 200001 to 300000 lit cap sump
Desilting light or sandysoil or silt from collection well below water level including the charges for special tools & plants and air compressor etc complete
Supply, delivery and application of disinfection dosages as per standard norms / guidelines including cost of all disinfectents (Such as bleaching powder, chlorine cylinder, silver ionization rods, sodium hypochlorite solution, common salt as applicable to this CWSS), labour charges and all incidental charges for disinfection of the water supplied from this CWSS to ensure the portable quality of disinfected water at all delivery points / tail ends, testing of water samples including additional / required / instructed dosage during the period of Flood/ Calamities etc., complete.
Supply delivery of Bleaching Powder as per Relevant IS Specification
Supply delivery of Liquid Chlorine as per Relevant IS Specification
Supply delivery of Alum as per Relevant IS Specification
COMBINED WATER SUPPLY SCHEME TO KILPENNATHUR TOWN PANCHAYAT AND 157 HABITATIONS IN KILPENNATHUR UNION IN TIRUVANNAMALAI DISTRICT
Operation and Maintenance of the Electro Mechanical installations, equipments, components, pipelines valves and appurtenances, water retaining structures including protecton of all schemee components from damages/ theft undertaking legal actions for such untoward incidents, preventive maintenance, disinfection and deliverance of water as per quality standards and supply of earmarked quantity of water to the beneficiaries as per Annexure .........., carrying out the O&M as per standard operating procedures, Acts and rules in force and as directed by TWAD Board Oficers and excluding cost towards attending leak, burst repair and replacement works to electro mechanical installations consumables for disinfection of water, cleaning of all water retaining structure, electricity .
Repair & Renewals and Leak & Bursts :
Attending Leaks in the PVC pipelines of this CWSS for the following items, as per the standard procedure including earthwork excavation, dewatering, removing, relaying, jointing, civil works, cost of materials and all other incidental charges, etc complete within the stipulated time limit as directed by the TWAD Board officers.
PVC 4 KSC Pipes_Minor Leak
63mm OD PVC 4 KSC pipes_Minor Leak
75mm OD PVC 4 KSC pipes_Minor Leak
90mm OD PVC 4 KSC pipes_Minor Leak
110mm OD PVC 4 KSC pipes_Minor Leak
140mm OD PVC 4 KSC pipes_Minor Leak
160mm OD PVC 4 KSC pipes_Minor Leak
200mm OD PVC 4 KSC pipes_Minor Leak
250mm OD PVC 4 KSC pipes_Major Leak
PVC 4 KSC Pipes_Major Leak
63mm OD PVC 4 KSC pipes_Major Leak
75mm OD PVC 4 KSC pipes_Major Leak
90mm OD PVC 4 KSC pipes_Major Leak
110mm OD PVC 4 KSC pipes_Major Leak
140mm OD PVC 4 KSC pipes_Major Leak
160mm OD PVC 4 KSC pipes_Major Leak
200mm OD PVC 4 KSC pipes_Major Leak
250mm OD PVC 4 KSC pipes_Major Leak
PVC 6 KSC Pipes_Minor Leak
50mm OD PVC 6 KSC pipes_Minor Leak
63mm OD PVC 6 KSC pipes_Minor Leak
75mm OD PVC 6 KSC pipes_Minor Leak
90mm OD PVC 6 KSC pipes_Minor Leak
110mm OD PVC 6 KSC pipes_Minor Leak
140mm OD PVC 6 KSC pipes_Minor Leak
200mm OD PVC 6 KSC pipes_Minor Leak
250mm OD PVC 6 KSC pipes_Major Leak
PVC 6 KSC Pipes_Major Leak
50mm OD PVC 6 KSC pipes_Major Leak
63mm OD PVC 6 KSC pipes_Major Leak
75mm OD PVC 6 KSC pipes_Major Leak
90mm OD PVC 6 KSC pipes_Major Leak
110mm OD PVC 6 KSC pipes_Major Leak
140mm OD PVC 6 KSC pipes_Major Leak
200mm OD PVC 6 KSC pipes_Major Leak
250mm OD PVC 6 KSC pipes_Major Leak
Attending Leaks/Bursts in the HDPE pipelines of this CWSS for the following items, as per the standard procedure including earthwork excavation, dewatering, removing, relaying, jointing by Electro fusion/butt Joint, civil works, cost of materials and all other incidental charges, etc complete within the stipulated time limit as directed by the TWAD Board officers.
HDPE PN 6 Pipes_Minor Leaks
63mm HDPE PN 6 pipes_Minor Leak
75mm HDPE PN 6 pipes_Minor Leak
90mm HDPE PN 6 pipes_Minor Leak
110mm HDPE PN 6 pipes_Minor Leak
140mm HDPE PN 6 pipes_Minor Leak
160mm HDPE PN 6 pipes_Minor Leak
200mm HDPE PN 6 pipes_Minor Leak
HDPE PN 6 Pipes_Major Leaks
63mm HDPE PN 6 pipes_Major Leak
75mm HDPE PN 6 pipes_Major Leak
90mm HDPE PN 6 pipes_Major Leak
110mm HDPE PN 6 pipes_Major Leak
140mm HDPE PN 6 pipes_Major Leak
160mm HDPE PN 6 pipes_Major Leak
200mm HDPE PN 6 pipes_Major Leak
Attending leaks and bursts in GI pipes of various sizes including Supply and delivery of following G I PIPES (MEDIUM) AS PER IS 1239/PART I/2004 and Lowering GI pipes and specials in the trenches and laying to proper grade and alignment, jointing with GI Specials and as directed by the TWAD Officers
50mm GI Pipe leak above GL
65mm GI Pipe leak above GL
80mm GI Pipe leak above GL
100mm GI Pipe leak above GL
125mm GI Pipe leak above GL
150mm GI Pipe leak above GL
Attending joint (Collar) Leaks in the AC pipelines of this CWSS for the following items, as per the standard procedure including earthwork excavation, dewatering, removing, relaying, jointing, civil works, cost of materials and all incidental charges, etc complete within the stipulated time limit as specified in Clause 2.6.4 of General conditions of Contract
AC Pipe_Collar Leak
200mm AC_Collar Leak
250mm AC_Collar Leak
AC Pipe_Minor Leak centre crack
200mm AC Pipe_MS Cut Barrel
250mm AC Pipe_MS Cut Barrel
Attending Leaks/Bursts in the O-PVC pipelines of this CWSS for the following items, as per the standard procedure including earthwork excavation, dewatering, removing, relaying, jointing, civil works, cost of materials and all incidental charges, etc complete within the stipulated time limit as specified in Clause 2.6.4 of General conditions of Contract
250mm O-PVC Pipe Leak
Attending Leaks/Bursts in the DI pipelines of this CWSS for the following items, as per the standard procedure including earthwork excavation, dewatering, removing, relaying, jointing, civil works, cost of materials and all incidental charges, etc complete within the stipulated time limit as specified in Clause 2.6.4 of General conditions of Contract
DI Pipes_Minor Leak
200mm DI pipes - Minor leak
250mm DI pipes - Minor leak
DI Pipes_Major Leak
200mm DI pipes - Major leak
250mm DI pipes - Major leak
Labour for cutting open B.T. Roads (or) Maccadam road for laying water mains - 15 cm thick (SOR VOL II P.195)
For all size Pumping mains
Road Restoration with PCC 1:2:4 using 20 mm HBGS for the Concrete Road cut Portion after the pipes are laid, joined and tested complete and as directed by TWAD Board Officers - 15 cm thick
For all size Pumping mains
Supply and delivery of following sizes of UN PLASTICIZED O-PVC PIPES FOR POTABLE WATER SUPPLY AS PER IS 16647 / 2017 inclusive of transportation charges to stockyard excluding unloading anywhere in Tamilnadu etc, complete and as directed by the TWAD Board officers. (SOR VOL II P.11)
250mm O-PVC PIPE PN 12.5 Class 500
Supply and conveying of DI DUCTILE IRON SOCKET/SPIGOT PIPES FOR CLASS K7 AS PER IS 8329/2000 for standard length including cost of pipe,testing charges at factory ,labour charges for loading,unloading and stacking at site etc.(SOR VOL II P.35)
250mm DI S/S K7 pipe
200mm DI S/S K7 pipe
Supply and delivery of following sizes of HDPE PIPES - PE 100 AS PER IS 4984/2016 (Pre-Compounded Resin) inclusive of transportation charges to stockyard excluding unloading anywhere in Tamilnadu etc, complete and as directed by the TWAD Board officers. (SOR VOL II P.14)
225mm HDPE PN 6
200mm HDPE PN 6
160mm HDPE PN 6
140mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
75mm HDPE PN 6
63mm HDPE PN 6
Earth work excavation and depositing on bank with initial lead of 10 m and initial lift of 2m in narrow trenches for laying of pipes for water supply in the following types of soil
Hard stiff clay, stiff black cotton, hard red earth, shales, murrum gravel, stoney earth and earth mixed with small size boulders and hard gravelly soil. (SOR VOL II P.192)
250mm O PVC / DI S/S Pipe
225mm HDPE PN 6
200mm HDPE PN 6 / DI S/S Pipe
160mm HDPE PN 6
140mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
75mm HDPE PN 6
63mm HDPE PN 6
Lowering of OPVC Pipes and specials in the trenches and laying to proper grade and alignment and as directed by the TWAD Officers. (SOR VOL II P.161)
250mm O PVC
Lowering of D.I Pipes and specials in the trenches and laying to proper grade and alignment and as directed by the TWAD Officers.
250mm DI S/S K7 pipe
200mm DI S/S K7 pipe
Lowering HDPE pipes and specials to trench and laying to proper grade and alignment and as directed by the TWAD Officers. (SOR VOL II P.171)
225mm HDPE PN 6
200mm HDPE PN 6
160mm HDPE PN 6
140mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
75mm HDPE PN 6
63mm HDPE PN 6
Jointing OPVC-S/S pipes and specials with rubber gaskets (tyton joint) including cost of lubricants. (including cost of jointing materials) (SOR VOL II P.164)
250mm O PVC - 6m Length
Jointing C.I/ D.I-S/S pipes and specials with rubber gaskets (tyton joint) including cost of lubricants. (including cost of jointing materials)(SOR VOL II P.164)
250mm DI S/S K7 pipe
200mm DI S/S K7 pipe
Jointing HDPE Pipes and Specials by butt fusion welding / electro fusion welding joints using fusion equipment as per ISO 21307-2011 and as per IS 7634 (part-2) : 2012 including cost of hire charges for butt fusion equipment power supply arrangements etc., complete as per directed by TWAD Board Officers. (SOR VOL II P.184)
225mm HDPE PN 6
200mm HDPE PN 6
160mm HDPE PN 6
140mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
75mm HDPE PN 6
63mm HDPE PN 6
Refiling with excavated sand or other loose soil complying with standerd specification in layers of 15 cm thick well rammed and consolidated after pipes and specials are laid and tested. (SOR VOL II P.192)
250mm O PVC / DI S/S Pipe
225mm HDPE PN 6
200mm HDPE PN 6 / DI S/S Pipe
160mm HDPE PN 6
140mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
75mm HDPE PN 6
63mm HDPE PN 6
Pumpsets
Carrying out the following repair works occuring during the maintenance period in the Electrical, Mechanical and Elctro-mechanical items to bring back the scheme / components into normal running conditition as per standard specification including all labour charges, cost of materials and all incidental charges within the stipulated time limit etc., complete as specified in Clause 2.8 of General conditions of Contract Part II etc as directed by TWAD Board officers
Attending the Rewinding, Repair and Renewal works in various capacity Open Well Submersible Pumpsets
Removing the Submersible pumpset by using tripod set after disconnecting the power supply cable and delivery pipe line fittings
1HP -OWS
2HP -OWS
3HP -OWS
5HP -OWS
7.5HP -OWS
10HP -OWS
12.50HP -OWS
20HP -OWS
40HP -OWS
50HP -OWS
Transporting the pumpset from Pump House to work shop.
1HP -OWS
2HP -OWS
3HP -OWS
5HP -OWS
7.5HP -OWS
10HP -OWS
12.50HP -OWS
20HP -OWS
40HP -OWS
50HP -OWS
Rewinding the submersible motor using best quality winding wire including cost of wire, Sleeve, other insulating and fibre class materials after deducting the cost of old materials.
1HP -OWS
2HP -OWS
3HP -OWS
5HP -OWS
7.5HP -OWS
10HP -OWS
12.50HP -OWS
20HP -OWS
40HP -OWS
50HP -OWS
Reconditioning the worn-out shaft and fittings, impeller and Gun Metal/ SS Bushes including cost of lath work & labour charges etc.,
1HP -OWS
2HP -OWS
3HP -OWS
5HP -OWS
7.5HP -OWS
10HP -OWS
12.50HP -OWS
20HP -OWS
40HP -OWS
50HP -OWS
Replacement of carbon type thrust bearing and pumpside Gun Metal Bush including cost of labour charges after deducting the cost of old material
1HP -OWS
2HP -OWS
3HP -OWS
5HP -OWS
7.5HP -OWS
10HP -OWS
12.50HP -OWS
20HP -OWS
40HP -OWS
50HP -OWS
Transporting charges for Submersible pumpset from work shop to Pump House after attending repair works.
1HP -OWS
2HP -OWS
3HP -OWS
5HP -OWS
7.5HP -OWS
10HP -OWS
12.50HP -OWS
20HP -OWS
40HP -OWS
50HP -OWS
Re-erection of pumpset in the Sump / Well by using tripod set and required Rubber washer and Bolt & Nuts and connecting the power supply cable and delivery pipeline arrangements testing to trial pumping.
1HP -OWS
2HP -OWS
3HP -OWS
5HP -OWS
7.5HP -OWS
10HP -OWS
12.50HP -OWS
20HP -OWS
40HP -OWS
50HP -OWS
SUPPLY AND DELIVERY OF SERVICE CONNECTION ACCESSORIES L.T. 1100V PVC ALUMINIUM ARMOURED UNDER GROUND CABLE WITH ISI MARK
25 Sq.mm 3.5 Core
35 Sq.mm 3.5 Core
50 Sq.mm 3.5 Core
70 Sq.mm 3.5 Core
95 Sq.mm 3.5 Core
SUPPLY AND DELIVERY OF L.T. CABLES following size sq mm 3 CORE 1.1 KV GRADE ARMOURED ALUMINIUM CONDUCTOR CROSS LINKED POLY ETHYLENE INSULATED PVC SHEATHED CABLES CONFORMING TO IS 7098 (PART I)/1988 WITH ISI MARKING
25 Sq.mm 3 Core
35 Sq.mm 3 Core
50 Sq.mm 3 Core
70 Sq.mm 3Core
95 Sq.mm 3 Core
SUPPLY AND DELIVERY OF PVC INSULATED AND SHEATHED following sq mm 3 CORE FLAT TYPE COPPER CABLE CONFORMING TO IS 694/1989
SUPPLY AND DELIVERY OF 150mm dia Pressure Gauge and Vaccum guage including all accessories as per specification (For Suction and Delivery to be mounted on wall on Teak Wood Board)
Supply, delivey and fixing of MOULDED CASE CIRCUIT BREAKER (MCCB) WITH THERMO MAGNETIC RELEASE - 4 Pole
Range - 63/100A
Range - 125A
Range - 160A
Range - 250A
Supply, delivey and fixing of RATE FOR MIXED DI-ELECTRIC CAPACITOR WITH TNEB TEST CERTIFICATE WITH ACCESSORIES INCLUDING BANKING CONFORMIING TO IS 2834.
Supply, delivey and fixing of Electro magnetic contactors of suitable capacity in AC Three Phase rating, conforming to IS/IEC 60947-4-1.
Supply, delivey and fixing of Overload Relays: Directly operated Bimetallic Thermal overload relay which operates in case of overload and also in case of under voltage with manual and auto reset mode.
Supply, delivey and fixing of Preventer – Single Phasing - Electric Motor protection device against single phasing. The device should protect the motor against single phasing, reverse phasing and unbalance supply. The device should be suitable for any auxillary device and have provisions for mounting in panel boards. Operate without need of any auxiliary supply.
Electric Motor protection device against dry running. The device should protect the motor against Dry running. The device should be suitable for any auxillary device and have provisions for mounting in panel boards. Operate without need of any auxiliary supply
Supply, delivey and fixing of FUSE UNITS (ANCHOR /EQUIVALENT)
63 Amps Porcelain fuse unit (500 V)
100 Amps Porcelain fuse unit (500 V)
200 Amps Porcelain fuse unit (500 V)
Supply, delivey and fixing of CHANGE OVER SWITCHES
16 Amps three phase 500 V 4 pole Change over switch
32 Amps three phase 500 V 4 pole Change over switch
63 Amps three phase 500 V 4 pole Change over switch
100 Amps three phase 500 V 4 pole Change over switch
125 Amps three phase 500 V 4 pole Change over switch
Supply, delivey and fixing of PVC INSULATED SINGLE CORE MULTI STRAND FIRE RETARDANT FLEXIBLE COPPER CABLE WITH ISI MARK CONFORMING TO IS
Supply, delivey and fixing of HRC - FUSES - HIGHER END
HRC - 16 Amps
HRC - 32 Amps
HRC - 63 Amps
HRC - 125 Amps
HRC - 160 Amps
HRC - 200 Amps
HRC - 250 Amps
Supply and delivery of the following Electrical Works :consumable items at the site of work to carryout the general maintenace works
Voltmeter Digital - Three Phase Class 1-AC
Ammeter Digital - Three Phase Class 1-1A
20W 4 Feet LED Fitting with LED (Higher end)
LED OUTDOOR FITTINGS (LIGHT EMITTING DIODE) LOWER END 25W LED Street Light Fitting with LED
Supply and delivery of the following consumable items for Pump Set repairs at the site of work to carryout the general maintenace works
50mm GM Gate valve
65mm GM Gate valve
80mm GM Gate valve
100mm GM Gate valve
R I Sheet
Bolts and Nuts - All sizes
50mm GI Pipe
65mm GI Pipe
80mm GI Pipe
100mm GI pipe
125mm GI pipe
150mm GI pipe
Supply, delivery and fixing of DI D/F Gate sluice/scour valves (soft seated) resilient seated soft sealing Gate Valves(Sluice Valves) with body Bonnet of Ductile cast iron of Grade GGG 40 or equivalent grade, Wedge fully rubber lined with EPDM replaceable spindle nut without gland packing and with 3 O- Ring protection on the shaft and seals of NBR and the valves should be of Vacuum tight and 100% leak proof with face to face dimensions as per BS 5163- 89/ISI 14846-2000/DIN 3202 F4. All the valves should be with electrostatic powder coating both inside and out side with pocket less straight through body passage. All the valves are to be compatible for buried application with pressure rating PN 10/16 and with 5 years warranty.
100mm DI Gate Valve
150mm DI Gate Valve
Manufacture, Supply and Delivery of Tamper proof DI single chamber double orifice triple function (ventilating, admiting & ventilating during operation) air release valve with pressure rating PN 10/16 with body and cover made of Ductile Iron of Grade GGG 40 or GGG 50, conforming to IS 1865 with Food Grade Epoxy Powder coating (EP-P) inside and for outside of colour blue RAL 5005. All internal parts such as float, shell etc., cover bolts, made of Austenitic alloy steel of SS AISI 304/316. The float shall be made of Polytetrafluroethylene/ Austenitic alloy steel of AISI 304/316. Gaskets and seals of EPDM / Neoprene rubber for TWAD Board works anywhere in Tamil Nadu and with 5 years warranty
50mm DI Air Valve
80mm DI Air Valve
Supply, delivey and fixing of C.I. DOUBLE AIR VALVE AS PER ISI 14845/2000 AND WITH 5 YEARS WARRANTY
40mm CI Air Valve
50mm CI Air Valve
80mm CI Air Valve
SUMP CLEANING
Cleaning of all storage points like sumps, elevated reservoirs of various capacities available in this scheme at a frequency of once in two months including scrapping the inner side of compartment completely, scouring / dewatering / desilting using required machineries, materials, labour and all other incidental charges, application of bleaching powder/ solution etc complete.
For 15001 to 30000 lit cap sump
For 45001 to 60000 lit cap sump
For 100001 to 125000 lit cap sump
For 125001 to 150000 lit cap sump
For 200001 to 300000 lit cap sump
Desilting light or sandysoil or silt from collection well below water level including the charges for special tools & plants and air compressor etc complete
Supply, delivery and application of disinfection dosages as per standard norms / guidelines including cost of all disinfectents (Such as bleaching powder, chlorine cylinder, silver ionization rods, sodium hypochlorite solution, common salt as applicable to this CWSS), labour charges and all incidental charges for disinfection of the water supplied from this CWSS to ensure the portable quality of disinfected water at all delivery points / tail ends, testing of water samples including additional / required / instructed dosage during the period of Flood/ Calamities etc., complete.
Supply delivery of Bleaching Powder as per Relevant IS Specification
CWSS TO CHENGAM TP, PUDUPALAYAM TP AND 40 WAYSIDE HABIYTATIONS IN CHENGAM, PUDUPALAYAM UNIONS IN TIRUVANNAMALAI DISTRICT
Operation and Maintenance of the Electro Mechanical installations, equipments, components, pipelines valves and appurtenances, water retaining structures including protecton of all schemee components from damages/ theft undertaking legal actions for such untoward incidents, preventive maintenance, disinfection and deliverance of water as per quality standards and supply of earmarked quantity of water to the beneficiaries as per Annexure .........., carrying out the O&M as per standard operating procedures, Acts and rules in force and as directed by TWAD Board Oficers and excluding cost towards attending leak, burst repair and replacement works to electro mechanical installations consumables for disinfection of water, cleaning of all water retaining structure, electricity .
Repair & Renewals and Leak & Bursts :
Attending Leaks in the PVC pipelines of this CWSS for the following items, as per the standard procedure including earthwork excavation, dewatering, removing, relaying, jointing, civil works, cost of materials and all other incidental charges, etc complete within the stipulated time limit as directed by the TWAD Board officers.
PVC 4 KSC Pipes_Minor Leak
63mm OD PVC 4 KSC pipes_Minor Leak
75mm OD PVC 4 KSC pipes_Minor Leak
90mm OD PVC 4 KSC pipes_Minor Leak
110mm OD PVC 4 KSC pipes_Minor Leak
140mm OD PVC 4 KSC pipes_Minor Leak
200mm OD PVC 4 KSC pipes_Minor Leak
250mm OD PVC 4 KSC pipes_Major Leak
PVC 4 KSC Pipes_Major Leak
63mm OD PVC 4 KSC pipes_Major Leak
75mm OD PVC 4 KSC pipes_Major Leak
90mm OD PVC 4 KSC pipes_Major Leak
110mm OD PVC 4 KSC pipes_Major Leak
140mm OD PVC 4 KSC pipes_Major Leak
200mm OD PVC 4 KSC pipes_Major Leak
250mm OD PVC 4 KSC pipes_Major Leak
PVC 6 KSC Pipes_Minor Leak
50mm OD PVC 6 KSC pipes_Minor Leak
63mm OD PVC 6 KSC pipes_Minor Leak
75mm OD PVC 6 KSC pipes_Minor Leak
90mm OD PVC 6 KSC pipes_Minor Leak
110mm OD PVC 6 KSC pipes_Minor Leak
140mm OD PVC 6 KSC pipes_Minor Leak
200mm OD PVC 6 KSC pipes_Minor Leak
250mm OD PVC 6 KSC pipes_Major Leak
PVC 6 KSC Pipes_Major Leak
50mm OD PVC 6 KSC pipes_Major Leak
63mm OD PVC 6 KSC pipes_Major Leak
75mm OD PVC 6 KSC pipes_Major Leak
90mm OD PVC 6 KSC pipes_Major Leak
110mm OD PVC 6 KSC pipes_Major Leak
140mm OD PVC 6 KSC pipes_Major Leak
200mm OD PVC 6 KSC pipes_Major Leak
250mm OD PVC 6 KSC pipes_Major Leak
Attending Leaks/Bursts in the HDPE pipelines of this CWSS for the following items, as per the standard procedure including earthwork excavation, dewatering, removing, relaying, jointing by Electro fusion/butt Joint, civil works, cost of materials and all other incidental charges, etc complete within the stipulated time limit as directed by the TWAD Board officers.
HDPE PN 6 Pipes_Minor Leaks
63mm HDPE PN 6 pipes_Minor Leak
75mm HDPE PN 6 pipes_Minor Leak
90mm HDPE PN 6 pipes_Minor Leak
110mm HDPE PN 6 pipes_Minor Leak
HDPE PN 6 Pipes_Major Leaks
63mm HDPE PN 6 pipes_Major Leak
75mm HDPE PN 6 pipes_Major Leak
90mm HDPE PN 6 pipes_Major Leak
110mm HDPE PN 6 pipes_Major Leak
Attending leaks and bursts in GI pipes of various sizes including Supply and delivery of following G I PIPES (MEDIUM) AS PER IS 1239/PART I/2004 and Lowering GI pipes and specials in the trenches and laying to proper grade and alignment, jointing with GI Specials and as directed by the TWAD Officers
50mm GI Pipe leak above GL
65mm GI Pipe leak above GL
80mm GI Pipe leak above GL
100mm GI Pipe leak above GL
125mm GI Pipe leak above GL
150mm GI Pipe leak above GL
Attending joint (Collar) Leaks in the AC pipelines of this CWSS for the following items, as per the standard procedure including earthwork excavation, dewatering, removing, relaying, jointing, civil works, cost of materials and all incidental charges, etc complete within the stipulated time limit as specified in Clause 2.6.4 of General conditions of Contract
AC Pipe_Collar Leak
300mm AC_Collar Leak
AC Pipe_Minor Leak centre crack
300mm AC Pipe_MS Cut Barrel
Attending Leaks/Bursts in the DI pipelines of this CWSS for the following items, as per the standard procedure including earthwork excavation, dewatering, removing, relaying, jointing, civil works, cost of materials and all incidental charges, etc complete within the stipulated time limit as specified in Clause 2.6.4 of General conditions of Contract
DI Pipes_Minor Leak
200mm DI pipes - Minor leak
DI Pipes_Major Leak
200mm DI pipes - Major leak
Labour for cutting open B.T. Roads (or) Maccadam road for laying water mains - 15 cm thick (SOR VOL II P.195)
For all size Pumping mains
Road Restoration with PCC 1:2:4 using 20 mm HBGS for the Concrete Road cut Portion after the pipes are laid, joined and tested complete and as directed by TWAD Board Officers - 15 cm thick
For all size Pumping mains
Supply and delivery of following sizes of UN PLASTICIZED O-PVC PIPES FOR POTABLE WATER SUPPLY AS PER IS 16647 / 2017 inclusive of transportation charges to stockyard excluding unloading anywhere in Tamilnadu etc, complete and as directed by the TWAD Board officers. (SOR VOL II P.11)
250mm O-PVC PIPE PN 12.5 Class 500
315mm O-PVC PIPE PN 12.5 Class 500
Supply and delivery of following sizes of HDPE PIPES - PE 100 AS PER IS 4984/2016 (Pre-Compounded Resin) inclusive of transportation charges to stockyard excluding unloading anywhere in Tamilnadu etc, complete and as directed by the TWAD Board officers. (SOR VOL II P.14)
200mm HDPE PN 6
140mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
75mm HDPE PN 6
63mm HDPE PN 6
Earth work excavation and depositing on bank with initial lead of 10 m and initial lift of 2m in narrow trenches for laying of pipes for water supply in the following types of soil
Hard stiff clay, stiff black cotton, hard red earth, shales, murrum gravel, stoney earth and earth mixed with small size boulders and hard gravelly soil. (SOR VOL II P.192)
250mm O PVC
315mm O PVC
200mm HDPE PN 6
140mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
75mm HDPE PN 6
63mm HDPE PN 6
Lowering of OPVC Pipes and specials in the trenches and laying to proper grade and alignment and as directed by the TWAD Officers. (SOR VOL II P.161)
250mm O PVC
315mm O PVC
Lowering HDPE pipes and specials to trench and laying to proper grade and alignment and as directed by the TWAD Officers. (SOR VOL II P.171)
200mm HDPE PN 6
140mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
75mm HDPE PN 6
63mm HDPE PN 6
Jointing OPVC-S/S pipes and specials with rubber gaskets (tyton joint) including cost of lubricants. (including cost of jointing materials) (SOR VOL II P.164)
250mm O PVC - 6m Length
315mm O PVC - 6m Length
Jointing HDPE Pipes and Specials by butt fusion welding / electro fusion welding joints using fusion equipment as per ISO 21307-2011 and as per IS 7634 (part-2) : 2012 including cost of hire charges for butt fusion equipment power supply arrangements etc., complete as per directed by TWAD Board Officers. (SOR VOL II P.184)
200mm HDPE PN 6
140mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
75mm HDPE PN 6
63mm HDPE PN 6
Refiling with excavated sand or other loose soil complying with standerd specification in layers of 15 cm thick well rammed and consolidated after pipes and specials are laid and tested. (SOR VOL II P.192)
250mm O PVC
315mm O PVC
200mm HDPE PN 6
140mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
75mm HDPE PN 6
63mm HDPE PN 6
Pumpsets
Carrying out the following repair works occuring during the maintenance period in the Electrical, Mechanical and Elctro-mechanical items to bring back the scheme / components into normal running conditition as per standard specification including all labour charges, cost of materials and all incidental charges within the stipulated time limit etc., complete as specified in Clause 2.8 of General conditions of Contract Part II etc as directed by TWAD Board officers
Attending the Rewinding, Repair and Renewal works in various capacity Open Well Submersible Pumpsets
Removing the Submersible pumpset by using tripod set after disconnecting the power supply cable and delivery pipe line fittings
1HP -OWS
2HP -OWS
3HP -OWS
5HP -OWS
12.50HP -OWS
Transporting the pumpset from Pump House to work shop.
1HP -OWS
2HP -OWS
3HP -OWS
5HP -OWS
12.50HP -OWS
Rewinding the submersible motor using best quality winding wire including cost of wire, Sleeve, other insulating and fibre class materials after deducting the cost of old materials.
1HP -OWS
2HP -OWS
3HP -OWS
5HP -OWS
12.50HP -OWS
Reconditioning the worn-out shaft and fittings, impeller and Gun Metal/ SS Bushes including cost of lath work & labour charges etc.,
1HP -OWS
2HP -OWS
3HP -OWS
5HP -OWS
12.50HP -OWS
Replacement of carbon type thrust bearing and pumpside Gun Metal Bush including cost of labour charges after deducting the cost of old material
1HP -OWS
2HP -OWS
3HP -OWS
5HP -OWS
12.50HP -OWS
Transporting charges for Submersible pumpset from work shop to Pump House after attending repair works.
1HP -OWS
2HP -OWS
3HP -OWS
5HP -OWS
12.50HP -OWS
Re-erection of pumpset in the Sump / Well by using tripod set and required Rubber washer and Bolt & Nuts and connecting the power supply cable and delivery pipeline arrangements testing to trial pumping.
1HP -OWS
2HP -OWS
3HP -OWS
5HP -OWS
12.50HP -OWS
Attending the Rewinding, Repair and Renewal works in Monoblock Pumpset
3HP_Monoblock
Removing the Monblock Centrifugal Pumpset from the Bed assembly by using contractors tools and materials after disconnecting the power supply cable and delivery pipe line fittings with required dummy plate arrangements.
Transporting the pumpset from the Pumping Station to work shop.
Removing the Burnt winding materials from the stator slots and cleaning the stator and rotor assembly by using contractor tools and materials
Reconditioning the worn-out shaft and fittings, impeller and Rope gland bush including cost of lath work & labour charges etc.,
Rewinding the Monblock Centrifugal Motor using best quality winding wire including cost of wire, Sleeve, other insulating and fibre class materials after deducting the cost of old materials.
Replacement of driven end (No: XXXX) and Non driven end (No:XXXX) Bearings suitable for Monblock Centrifugal Motor including the cost of Bearing and labour charges after deducting the cost of old materials.
Replacement of cooling fan at motor end and Terminal Board for suitable for Monblock Centrifugal Pumpset and labour charges after deducting the cost of old materials.
Transporting charges for Monblock Centrifugal Pumpset from work shop to Pump House after attending repair works.
Re-erection of pumpset in the Sump / Well by using required Rubber washer and Bolt & Nuts and connecting the power supply cable and delivery pipe line arrangements, testing and trial pumping.
Attending the Rewinding and replacement of bearings of Induction Motor for Horizontal Split Casing Pumpsets
15HP -HSC_Motor
Charges for removing the motor from bed after disconnection of power supply cable, Earthing line and Coupling arrangements by using contractor tools and materials.
Transportation charges for conveying the motor from the Booster Station to Our work shop including loading and unloading charges.
Labour Charges for removing the two end side cover with fan arrangements and the damaged driven end and non driven end bearings.
Charges for removing the burnt wires from the rotor assembly and cleaning and checking the slots of rotor and labour charges for rewinding of Centrifugal Squirrel Cage Induction Motor after deducting the cost of old materials and including suppy and delivery of Class ‘F’ Insulation Super enameled Copper wire, required for rewinding and Fiber Glass wire, Fiber Glass Sleeves, Class ‘F’ insulation paper, Copper Socket and FG thread required for rewinding of Squirrel Cage Induction Motor
Labour Charges for reconditioning the worn out shaft for driven end and non driven end bearing seating, knurling, bend checking, and etc.,
Supply and delivery of Driven End and Non Driven End bearings suitable for the required Induction Motor
Labour Charges fixing the DE and NDE bearings correctly and neatly with required lubrications by contractors tools & Materials
Transportation charges for conveying the motor from work shop to Pumping Station
Charges for reassembling the motor with bed and pump coupling, alignment checking connecting power supply cable, including required bolt and Nuts and testing trial running etc.,
Attending the Repair and Reconditioning works of various capacities of Horizontal Split Casing Pumpsets
15HP -HSC_Pump
Charges for removing the motor from bed assembly after dismantling of Coupling arrangements and removing the pump assembly and including the provision of dummy flange arrangements by using contractor tools and materials.
Transportation charges for conveying the Pump assembly from the Pumping Station to work shop including loading and unloading charges.
Labour Charges for removing the impeller by using hydralic system, DE and NDE Bearings
Labour Charges for reconditioning the worn out shaft including welding the shaft to suit the impeller and suit the driven end and non driven end bearing seating, knurling, bend checking and etc.,
Supply, delivery and fixing of Shaft sleeves in Gun metal including machining charges and making key ways after deducting the scrap materials
Balancing of Rotor with impeller both dyanamically and Hydralically by using required dyanamic balancing machine
Supply, delivery and fixing of Gunmetal seal rings for impeller neck including machining charges after deducting the scrap materials
Supply and delivery of Driven End and Non Driven End bearings
Labour Charges fixing the DE and NDE bearings correctly and neatly with required lubrications by contractors tools & Materials
Transportation charges for conveying the Pump assembly from work shop to Pumping Station.
Charges for reassembling the Pump with Motor by using pulley and alignment checking, including required bolt and Nuts and testing trial running etc.,
Attending the Rewinding and replacement of bearings of Induction Motor for Vertical Turbine Pumpset
50HP -VT_Motor
Charges for removing the motor from bed after disconnection of power supply cable, Earthing line and Coupling arrangements by using contractor tools and materials.
Transportation charges for conveying the motor from the Station to Our work shop including loading and unloading charges.
Labour Charges for removing the two end side cover with fan arrangements and Dismantling the damaged NDE Side ball Bearing from the motor after removing the Rachet assembly load bearing safely and Fixing the New ball Bearing in the appropriate place with required lubricants without any damage to the motor shaft and winding after deducting the old damaged materials.
Charges for removing the burnt wires from the rotor assembly and cleaning and checking the slots of rotor and labour charges for rewinding of Centrifugal Squirrel Cage Induction Motor after deducting the cost of old materials and including suppy and delivery of Class ‘F’ Insulation Super enameled Copper wire, required for rewinding and Fiber Glass wire, Fiber Glass Sleeves, Class ‘F’ insulation paper, Copper Socket and FG thread required for rewinding of Squirrel Cage Induction Motor
Labour Charges for reconditioning the worn out shaft for driven end and non driven end bearing seating, knurling, bend checking, and etc.,
Supply and delivery of Non Driven End Deep Grove ball Bearing SKF Make suitable for the Squirrel Gage Induction Motor.
Labour Charges fixing the NDE bearings correctly and neatly with required lubrications by contractors tools & Materials
Transportation charges for conveying the motor from work shop to pumping Station
Charges for reassembling the motor with bed and pump coupling, alignment checking connecting power supply cable, including required bolt and Nuts and testing trial running etc.,
Attending the Repair and Reconditioning works of various capacities of Vertical Turbine Pumps
50HP -VT_Pump
Charges for Removing the Hollow shaft Squirrel cage Induction Motor after disconnecting the Power supply Cable, Discharge Head, Head Shaft and Stuffing Box by using contractor tools at Collector Well / Collection Sump
Charges for removing the all Column pipes of VT Pumpset each 1.5 m / 2.00 m to length and bowl assemblly for attending Pump repair works
Transportation charges for conveying the VT Pump bowl assembly from Collector Well Pump room to Work Shop including usage of trolley along the Foot bridge and Van
Reconditioning of Stuffing Box for providing bronze bush suitable for fixing thr Rope Gland and Head Shaft to avoid frequent damaging of rope and to avoid spreading of more leakage water from the Rope Gland including lath works etc., complete.
Charges for Lathe work of reconditioning of Pump SS Shaft with balancing, SS Bushes and sleeves, charges for Spider bore nd outer dimension phase out lath works, reconditioning of impeller and impeller ring & charges fixing the bearing and bronze bushes in the bowl assembly including correct setting of impeller allignment etc complete
Transportation charges for conveying the VT Pump bowl assembly from our work shop to Collector Well Pump room including usage of trolley along the Foot bridge and Van
Charges for reassembling the all Column pipes of Turbine Pump set and bowl assemblly after attending Pump repair works in the proper allignment after attending the cleaning and painting work in the coloumn pipe and body of the bowl assembly
Re errection of reconditioned stuffing box, new Head shaft, Discharge head and Motor, fixing the Rachet load bearing assembly including filling of required 90 grade oil and Connecting the 440V AC incoming Cable to the Motor Terminal and fixing new rope in the rope gland and Checking Motor Pumpset Alignment and Rotation and testing with load etc.,Complete
SUPPLY AND DELIVERY OF SERVICE CONNECTION ACCESSORIES L.T. 1100V PVC ALUMINIUM ARMOURED UNDER GROUND CABLE WITH ISI MARK
25 Sq.mm 3.5 Core
35 Sq.mm 3.5 Core
50 Sq.mm 3.5 Core
120 Sq.mm 3.5 Core
SUPPLY AND DELIVERY OF L.T. CABLES following size sq mm 3 CORE 1.1 KV GRADE ARMOURED ALUMINIUM CONDUCTOR CROSS LINKED POLY ETHYLENE INSULATED PVC SHEATHED CABLES CONFORMING TO IS 7098 (PART I)/1988 WITH ISI MARKING
25 Sq.mm 3 Core
35 Sq.mm 3 Core
50 Sq.mm 3 Core
SUPPLY AND DELIVERY OF PVC INSULATED AND SHEATHED following sq mm 3 CORE FLAT TYPE COPPER CABLE CONFORMING TO IS 694/1989
SUPPLY AND DELIVERY OF 150mm dia Pressure Gauge and Vaccum guage including all accessories as per specification (For Suction and Delivery to be mounted on wall on Teak Wood Board)
Supply, delivey and fixing of MOULDED CASE CIRCUIT BREAKER (MCCB) WITH THERMO MAGNETIC RELEASE - 4 Pole
Range - 63/100A
Range - 125A
Range - 160A
Range - 250A
Supply, delivey and fixing of RATE FOR MIXED DI-ELECTRIC CAPACITOR WITH TNEB TEST CERTIFICATE WITH ACCESSORIES INCLUDING BANKING CONFORMIING TO IS 2834.
Supply, delivey and fixing of Electro magnetic contactors of suitable capacity in AC Three Phase rating, conforming to IS/IEC 60947-4-1.
Supply, delivey and fixing of Overload Relays: Directly operated Bimetallic Thermal overload relay which operates in case of overload and also in case of under voltage with manual and auto reset mode.
Supply, delivey and fixing of Preventer – Single Phasing - Electric Motor protection device against single phasing. The device should protect the motor against single phasing, reverse phasing and unbalance supply. The device should be suitable for any auxillary device and have provisions for mounting in panel boards. Operate without need of any auxiliary supply.
Electric Motor protection device against dry running. The device should protect the motor against Dry running. The device should be suitable for any auxillary device and have provisions for mounting in panel boards. Operate without need of any auxiliary supply
Supply, delivey and fixing of FUSE UNITS (ANCHOR /EQUIVALENT)
63 Amps Porcelain fuse unit (500 V)
100 Amps Porcelain fuse unit (500 V)
200 Amps Porcelain fuse unit (500 V)
Supply, delivey and fixing of CHANGE OVER SWITCHES
16 Amps three phase 500 V 4 pole Change over switch
32 Amps three phase 500 V 4 pole Change over switch
63 Amps three phase 500 V 4 pole Change over switch
100 Amps three phase 500 V 4 pole Change over switch
125 Amps three phase 500 V 4 pole Change over switch
Supply, delivey and fixing of PVC INSULATED SINGLE CORE MULTI STRAND FIRE RETARDANT FLEXIBLE COPPER CABLE WITH ISI MARK CONFORMING TO IS
Supply, delivey and fixing of HRC - FUSES - HIGHER END
HRC - 16 Amps
HRC - 32 Amps
HRC - 63 Amps
HRC - 125 Amps
HRC - 160 Amps
HRC - 200 Amps
Supply and delivery of the following Electrical Works :consumable items at the site of work to carryout the general maintenace works
Voltmeter Digital - Three Phase Class 1-AC
Ammeter Digital - Three Phase Class 1-1A
20W 4 Feet LED Fitting with LED (Higher end)
LED OUTDOOR FITTINGS (LIGHT EMITTING DIODE) LOWER END 25W LED Street Light Fitting with LED
Supply and delivery of the following consumable items for Pump Set repairs at the site of work to carryout the general maintenace works
50mm GM Gate valve
65mm GM Gate valve
80mm GM Gate valve
100mm GM Gate valve
R I Sheet
Bolts and Nuts - All sizes
50mm GI Pipe
65mm GI Pipe
80mm GI Pipe
100mm GI pipe
125mm GI pipe
150mm GI pipe
Supply, delivery and fixing of DI D/F Gate sluice/scour valves (soft seated) resilient seated soft sealing Gate Valves(Sluice Valves) with body Bonnet of Ductile cast iron of Grade GGG 40 or equivalent grade, Wedge fully rubber lined with EPDM replaceable spindle nut without gland packing and with 3 O- Ring protection on the shaft and seals of NBR and the valves should be of Vacuum tight and 100% leak proof with face to face dimensions as per BS 5163- 89/ISI 14846-2000/DIN 3202 F4. All the valves should be with electrostatic powder coating both inside and out side with pocket less straight through body passage. All the valves are to be compatible for buried application with pressure rating PN 10/16 and with 5 years warranty.
100mm DI Gate Valve
150mm DI Gate Valve
200mm DI Gate Valve
250mm DI Gate Valve
Manufacture, Supply and Delivery of Tamper proof DI single chamber double orifice triple function (ventilating, admiting & ventilating during operation) air release valve with pressure rating PN 10/16 with body and cover made of Ductile Iron of Grade GGG 40 or GGG 50, conforming to IS 1865 with Food Grade Epoxy Powder coating (EP-P) inside and for outside of colour blue RAL 5005. All internal parts such as float, shell etc., cover bolts, made of Austenitic alloy steel of SS AISI 304/316. The float shall be made of Polytetrafluroethylene/ Austenitic alloy steel of AISI 304/316. Gaskets and seals of EPDM / Neoprene rubber for TWAD Board works anywhere in Tamil Nadu and with 5 years warranty
50mm DI Air Valve
80mm DI Air Valve
Supply, delivey and fixing of C.I. DOUBLE AIR VALVE AS PER ISI 14845/2000 AND WITH 5 YEARS WARRANTY
40mm CI Air Valve
50mm CI Air Valve
80mm CI Air Valve
SUMP CLEANING
Cleaning of all storage points like sumps, elevated reservoirs of various capacities available in this scheme at a frequency of once in two months including scrapping the inner side of compartment completely, scouring / dewatering / desilting using required machineries, materials, labour and all other incidental charges, application of bleaching powder/ solution etc complete.
For 30001 to 45000 lit cap sump
For 45001 to 60000 lit cap sump
For 75001 to 100000 lit cap sump
For 175001 to 200000 lit cap sump
Desilting light or sandysoil or silt from collection well below water level including the charges for special tools & plants and air compressor etc complete
Supply, delivery and application of disinfection dosages as per standard norms / guidelines including cost of all disinfectents (Such as bleaching powder, chlorine cylinder, silver ionization rods, sodium hypochlorite solution, common salt as applicable to this CWSS), labour charges and all incidental charges for disinfection of the water supplied from this CWSS to ensure the portable quality of disinfected water at all delivery points / tail ends, testing of water samples including additional / required / instructed dosage during the period of Flood/ Calamities etc., complete.
Supply delivery of Bleaching Powder as per Relevant IS Specification
Supply delivery of Liquid Chlorine as per Relevant IS Specification
Supply delivery of Alum as per Relevant IS Specification
CWSS TO THANIPADI,THANDRAMPATTU AND 35 OTHER HABITATIONS IN TIRUVANNAMALAI DISTRICT
Operation and Maintenance of the Electro Mechanical installations, equipments, components, pipelines valves and appurtenances, water retaining structures including protecton of all schemee components from damages/ theft undertaking legal actions for such untoward incidents, preventive maintenance, disinfection and deliverance of water as per quality standards and supply of earmarked quantity of water to the beneficiaries as per Annexure .........., carrying out the O&M as per standard operating procedures, Acts and rules in force and as directed by TWAD Board Oficers and excluding cost towards attending leak, burst repair and replacement works to electro mechanical installations consumables for disinfection of water, cleaning of all water retaining structure, electricity .
Repair & Renewals and Leak & Bursts :
Attending Leaks in the PVC pipelines of this CWSS for the following items, as per the standard procedure including earthwork excavation, dewatering, removing, relaying, jointing, civil works, cost of materials and all other incidental charges, etc complete within the stipulated time limit as directed by the TWAD Board officers.
PVC 4 KSC Pipes_Minor Leak
63mm OD PVC 4 KSC pipes_Minor Leak
75mm OD PVC 4 KSC pipes_Minor Leak
90mm OD PVC 4 KSC pipes_Minor Leak
110mm OD PVC 4 KSC pipes_Minor Leak
140mm OD PVC 4 KSC pipes_Minor Leak
200mm OD PVC 4 KSC pipes_Minor Leak
PVC 4 KSC Pipes_Major Leak
90mm OD PVC 4 KSC pipes_Major Leak
200mm OD PVC 4 KSC pipes_Major Leak
PVC 6 KSC Pipes_Minor Leak
200mm OD PVC 6 KSC pipes_Minor Leak
PVC 6 KSC Pipes_Major Leak
200mm OD PVC 6 KSC pipes_Major Leak
Attending Leaks/Bursts in the HDPE pipelines of this CWSS for the following items, as per the standard procedure including earthwork excavation, dewatering, removing, relaying, jointing by Electro fusion/butt Joint, civil works, cost of materials and all other incidental charges, etc complete within the stipulated time limit as directed by the TWAD Board officers.
HDPE PN 6 Pipes_Minor Leaks
90mm HDPE PN 6 pipes_Minor Leak
110mm HDPE PN 6 pipes_Minor Leak
140mm HDPE PN 6 pipes_Minor Leak
200mm HDPE PN 6 pipes_Minor Leak
HDPE PN 6 Pipes_Major Leaks
90mm HDPE PN 6 pipes_Major Leak
110mm HDPE PN 6 pipes_Major Leak
140mm HDPE PN 6 pipes_Major Leak
200mm HDPE PN 6 pipes_Major Leak
Attending leaks and bursts in GI pipes of various sizes including Supply and delivery of following G I PIPES (MEDIUM) AS PER IS 1239/PART I/2004 and Lowering GI pipes and specials in the trenches and laying to proper grade and alignment, jointing with GI Specials and as directed by the TWAD Officers
80mm GI Pipe leak above GL
100mm GI Pipe leak above GL
125mm GI Pipe leak above GL
150mm GI Pipe leak above GL
Attending joint (Collar) Leaks in the AC pipelines of this CWSS for the following items, as per the standard procedure including earthwork excavation, dewatering, removing, relaying, jointing, civil works, cost of materials and all incidental charges, etc complete within the stipulated time limit as specified in Clause 2.6.4 of General conditions of Contract
AC Pipe_Collar Leak
150mm AC_Collar Leak
200mm AC_Collar Leak
AC Pipe_Minor Leak centre crack
150mm AC Pipe_MS Cut Barrel
200mm AC Pipe_MS Cut Barrel
Attending Leaks/Bursts in the DI pipelines of this CWSS for the following items, as per the standard procedure including earthwork excavation, dewatering, removing, relaying, jointing, civil works, cost of materials and all incidental charges, etc complete within the stipulated time limit as specified in Clause 2.6.4 of General conditions of Contract
DI Pipes_Minor Leak
150mm DI pipes - Minor leak
DI Pipes_Major Leak
150mm DI pipes - Major leak
Labour for cutting open B.T. Roads (or) Maccadam road for laying water mains - 15 cm thick (SOR VOL II P.195)
For all size Pumping mains
Road Restoration with PCC 1:2:4 using 20 mm HBGS for the Concrete Road cut Portion after the pipes are laid, joined and tested complete and as directed by TWAD Board Officers - 15 cm thick
For all size Pumping mains
Supply and delivery of following sizes of HDPE PIPES - PE 100 AS PER IS 4984/2016 (Pre-Compounded Resin) inclusive of transportation charges to stockyard excluding unloading anywhere in Tamilnadu etc, complete and as directed by the TWAD Board officers. (SOR VOL II P.14)
200mm HDPE PN 6
140mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
Earth work excavation and depositing on bank with initial lead of 10 m and initial lift of 2m in narrow trenches for laying of pipes for water supply in the following types of soil
Hard stiff clay, stiff black cotton, hard red earth, shales, murrum gravel, stoney earth and earth mixed with small size boulders and hard gravelly soil. (SOR VOL II P.192)
200mm HDPE PN 6
140mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
Lowering HDPE pipes and specials to trench and laying to proper grade and alignment and as directed by the TWAD Officers. (SOR VOL II P.171)
200mm HDPE PN 6
140mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
Jointing HDPE Pipes and Specials by butt fusion welding / electro fusion welding joints using fusion equipment as per ISO 21307-2011 and as per IS 7634 (part-2) : 2012 including cost of hire charges for butt fusion equipment power supply arrangements etc., complete as per directed by TWAD Board Officers. (SOR VOL II P.184)
200mm HDPE PN 6
140mm HDPE PN 6
110mm HDPE PN 6
Refiling with excavated sand or other loose soil complying with standerd specification in layers of 15 cm thick well rammed and consolidated after pipes and specials are laid and tested. (SOR VOL II P.192)
200mm HDPE PN 6
140mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
Pumpsets
Carrying out the following repair works occuring during the maintenance period in the Electrical, Mechanical and Elctro-mechanical items to bring back the scheme / components into normal running conditition as per standard specification including all labour charges, cost of materials and all incidental charges within the stipulated time limit etc., complete as specified in Clause 2.8 of General conditions of Contract Part II etc as directed by TWAD Board officers
Attending the Rewinding, Repair and Renewal works in various capacity Open Well Submersible Pumpsets
Removing the Submersible pumpset by using tripod set after disconnecting the power supply cable and delivery pipe line fittings
5HP -OWS
Transporting the pumpset from Pump House to work shop.
5HP -OWS
Rewinding the submersible motor using best quality winding wire including cost of wire, Sleeve, other insulating and fibre class materials after deducting the cost of old materials.
5HP -OWS
Reconditioning the worn-out shaft and fittings, impeller and Gun Metal/ SS Bushes including cost of lath work & labour charges etc.,
5HP -OWS
Replacement of carbon type thrust bearing and pumpside Gun Metal Bush including cost of labour charges after deducting the cost of old material
5HP -OWS
Transporting charges for Submersible pumpset from work shop to Pump House after attending repair works.
5HP -OWS
Re-erection of pumpset in the Sump / Well by using tripod set and required Rubber washer and Bolt & Nuts and connecting the power supply cable and delivery pipeline arrangements testing to trial pumping.
5HP -OWS
Attending the Rewinding, Repair and Renewal works in Monoblock Pumpset
3HP_Monoblock
Removing the Monblock Centrifugal Pumpset from the Bed assembly by using contractors tools and materials after disconnecting the power supply cable and delivery pipe line fittings with required dummy plate arrangements.
Transporting the pumpset from the Pumping Station to work shop.
Removing the Burnt winding materials from the stator slots and cleaning the stator and rotor assembly by using contractor tools and materials
Reconditioning the worn-out shaft and fittings, impeller and Rope gland bush including cost of lath work & labour charges etc.,
Rewinding the Monblock Centrifugal Motor using best quality winding wire including cost of wire, Sleeve, other insulating and fibre class materials after deducting the cost of old materials.
Replacement of driven end (No: XXXX) and Non driven end (No:XXXX) Bearings suitable for Monblock Centrifugal Motor including the cost of Bearing and labour charges after deducting the cost of old materials.
Replacement of cooling fan at motor end and Terminal Board for suitable for Monblock Centrifugal Pumpset and labour charges after deducting the cost of old materials.
Transporting charges for Monblock Centrifugal Pumpset from work shop to Pump House after attending repair works.
Re-erection of pumpset in the Sump / Well by using required Rubber washer and Bolt & Nuts and connecting the power supply cable and delivery pipe line arrangements, testing and trial pumping.
7.5HP_Monoblock
Removing the Monblock Centrifugal Pumpset from the Bed assembly by using contractors tools and materials after disconnecting the power supply cable and delivery pipe line fittings with required dummy plate arrangements.
Transporting the pumpset from the Pumping Station to work shop.
Removing the Burnt winding materials from the stator slots and cleaning the stator and rotor assembly by using contractor tools and materials
Reconditioning the worn-out shaft and fittings, impeller and Rope gland bush including cost of lath work & labour charges etc.,
Rewinding the Monblock Centrifugal Motor using best quality winding wire including cost of wire, Sleeve, other insulating and fibre class materials after deducting the cost of old materials.
Replacement of driven end (No: XXXX) and Non driven end (No:XXXX) Bearings suitable for Monblock Centrifugal Motor including the cost of Bearing and labour charges after deducting the cost of old materials.
Replacement of cooling fan at motor end and Terminal Board for suitable for Monblock Centrifugal Pumpset and labour charges after deducting the cost of old materials.
Transporting charges for Monblock Centrifugal Pumpset from work shop to Pump House after attending repair works.
Re-erection of pumpset in the Sump / Well by using required Rubber washer and Bolt & Nuts and connecting the power supply cable and delivery pipe line arrangements, testing and trial pumping.
Attending the Rewinding and replacement of bearings of Induction Motor for Horizontal Split Casing Pumpsets
50HP -HSC_Motor
Charges for removing the motor from bed after disconnection of power supply cable, Earthing line and Coupling arrangements by using contractor tools and materials.
Transportation charges for conveying the motor from the Booster Station to Our work shop including loading and unloading charges.
Labour Charges for removing the two end side cover with fan arrangements and the damaged driven end and non driven end bearings.
Charges for removing the burnt wires from the rotor assembly and cleaning and checking the slots of rotor and labour charges for rewinding of Centrifugal Squirrel Cage Induction Motor after deducting the cost of old materials and including suppy and delivery of Class ‘F’ Insulation Super enameled Copper wire, required for rewinding and Fiber Glass wire, Fiber Glass Sleeves, Class ‘F’ insulation paper, Copper Socket and FG thread required for rewinding of Squirrel Cage Induction Motor
Labour Charges for reconditioning the worn out shaft for driven end and non driven end bearing seating, knurling, bend checking, and etc.,
Supply and delivery of Driven End and Non Driven End bearings suitable for the required Induction Motor
Labour Charges fixing the DE and NDE bearings correctly and neatly with required lubrications by contractors tools & Materials
Transportation charges for conveying the motor from work shop to Pumping Station
Charges for reassembling the motor with bed and pump coupling, alignment checking connecting power supply cable, including required bolt and Nuts and testing trial running etc.,
Attending the Repair and Reconditioning works of various capacities of Horizontal Split Casing Pumpsets
50HP -HSC_Pump
Charges for removing the motor from bed assembly after dismantling of Coupling arrangements and removing the pump assembly and including the provision of dummy flange arrangements by using contractor tools and materials.
Transportation charges for conveying the Pump assembly from the Pumping Station to work shop including loading and unloading charges.
Labour Charges for removing the impeller by using hydralic system, DE and NDE Bearings
Labour Charges for reconditioning the worn out shaft including welding the shaft to suit the impeller and suit the driven end and non driven end bearing seating, knurling, bend checking and etc.,
Supply, delivery and fixing of Shaft sleeves in Gun metal including machining charges and making key ways after deducting the scrap materials
Balancing of Rotor with impeller both dyanamically and Hydralically by using required dyanamic balancing machine
Supply, delivery and fixing of Gunmetal seal rings for impeller neck including machining charges after deducting the scrap materials
Supply and delivery of Driven End and Non Driven End bearings
Labour Charges fixing the DE and NDE bearings correctly and neatly with required lubrications by contractors tools & Materials
Transportation charges for conveying the Pump assembly from work shop to Pumping Station.
Charges for reassembling the Pump with Motor by using pulley and alignment checking, including required bolt and Nuts and testing trial running etc.,
Attending the Rewinding and replacement of bearings of Induction Motor for Vertical Turbine Pumpset
25HP -VT_Motor
Charges for removing the motor from bed after disconnection of power supply cable, Earthing line and Coupling arrangements by using contractor tools and materials.
Transportation charges for conveying the motor from the Station to Our work shop including loading and unloading charges.
Labour Charges for removing the two end side cover with fan arrangements and Dismantling the damaged NDE Side ball Bearing from the motor after removing the Rachet assembly load bearing safely and Fixing the New ball Bearing in the appropriate place with required lubricants without any damage to the motor shaft and winding after deducting the old damaged materials.
Charges for removing the burnt wires from the rotor assembly and cleaning and checking the slots of rotor and labour charges for rewinding of Centrifugal Squirrel Cage Induction Motor after deducting the cost of old materials and including suppy and delivery of Class ‘F’ Insulation Super enameled Copper wire, required for rewinding and Fiber Glass wire, Fiber Glass Sleeves, Class ‘F’ insulation paper, Copper Socket and FG thread required for rewinding of Squirrel Cage Induction Motor
Labour Charges for reconditioning the worn out shaft for driven end and non driven end bearing seating, knurling, bend checking, and etc.,
Supply and delivery of Non Driven End Deep Grove ball Bearing SKF Make suitable for the Squirrel Gage Induction Motor.
Labour Charges fixing the NDE bearings correctly and neatly with required lubrications by contractors tools & Materials
Transportation charges for conveying the motor from work shop to pumping Station
Charges for reassembling the motor with bed and pump coupling, alignment checking connecting power supply cable, including required bolt and Nuts and testing trial running etc.,
Attending the Repair and Reconditioning works of various capacities of Vertical Turbine Pumps
25HP -VT_Pump
Charges for Removing the Hollow shaft Squirrel cage Induction Motor after disconnecting the Power supply Cable, Discharge Head, Head Shaft and Stuffing Box by using contractor tools at Collector Well / Collection Sump
Charges for removing the all Column pipes of VT Pumpset each 1.5 m / 2.00 m to length and bowl assemblly for attending Pump repair works
Transportation charges for conveying the VT Pump bowl assembly from Collector Well Pump room to Work Shop including usage of trolley along the Foot bridge and Van
Reconditioning of Stuffing Box for providing bronze bush suitable for fixing thr Rope Gland and Head Shaft to avoid frequent damaging of rope and to avoid spreading of more leakage water from the Rope Gland including lath works etc., complete.
Charges for Lathe work of reconditioning of Pump SS Shaft with balancing, SS Bushes and sleeves, charges for Spider bore nd outer dimension phase out lath works, reconditioning of impeller and impeller ring & charges fixing the bearing and bronze bushes in the bowl assembly including correct setting of impeller allignment etc complete
Transportation charges for conveying the VT Pump bowl assembly from our work shop to Collector Well Pump room including usage of trolley along the Foot bridge and Van
Charges for reassembling the all Column pipes of Turbine Pump set and bowl assemblly after attending Pump repair works in the proper allignment after attending the cleaning and painting work in the coloumn pipe and body of the bowl assembly
Re errection of reconditioned stuffing box, new Head shaft, Discharge head and Motor, fixing the Rachet load bearing assembly including filling of required 90 grade oil and Connecting the 440V AC incoming Cable to the Motor Terminal and fixing new rope in the rope gland and Checking Motor Pumpset Alignment and Rotation and testing with load etc.,Complete
SUPPLY AND DELIVERY OF SERVICE CONNECTION ACCESSORIES L.T. 1100V PVC ALUMINIUM ARMOURED UNDER GROUND CABLE WITH ISI MARK
25 Sq.mm 3.5 Core
50 Sq.mm 3.5 Core
95 Sq.mm 3.5 Core
SUPPLY AND DELIVERY OF L.T. CABLES following size sq mm 3 CORE 1.1 KV GRADE ARMOURED ALUMINIUM CONDUCTOR CROSS LINKED POLY ETHYLENE INSULATED PVC SHEATHED CABLES CONFORMING TO IS 7098 (PART I)/1988 WITH ISI MARKING
25 Sq.mm 3 Core
50 Sq.mm 3 Core
95 Sq.mm 3 Core
SUPPLY AND DELIVERY OF PVC INSULATED AND SHEATHED following sq mm 3 CORE FLAT TYPE COPPER CABLE CONFORMING TO IS 694/1989
SUPPLY AND DELIVERY OF 150mm dia Pressure Gauge and Vaccum guage including all accessories as per specification (For Suction and Delivery to be mounted on wall on Teak Wood Board)
Supply, delivey and fixing of MOULDED CASE CIRCUIT BREAKER (MCCB) WITH THERMO MAGNETIC RELEASE - 4 Pole
Range - 63/100A
Range - 125A
Supply, delivey and fixing of RATE FOR MIXED DI-ELECTRIC CAPACITOR WITH TNEB TEST CERTIFICATE WITH ACCESSORIES INCLUDING BANKING CONFORMIING TO IS 2834.
Supply, delivey and fixing of Electro magnetic contactors of suitable capacity in AC Three Phase rating, conforming to IS/IEC 60947-4-1.
Supply, delivey and fixing of Overload Relays: Directly operated Bimetallic Thermal overload relay which operates in case of overload and also in case of under voltage with manual and auto reset mode.
Supply, delivey and fixing of Preventer – Single Phasing - Electric Motor protection device against single phasing. The device should protect the motor against single phasing, reverse phasing and unbalance supply. The device should be suitable for any auxillary device and have provisions for mounting in panel boards. Operate without need of any auxiliary supply.
Electric Motor protection device against dry running. The device should protect the motor against Dry running. The device should be suitable for any auxillary device and have provisions for mounting in panel boards. Operate without need of any auxiliary supply
Supply, delivey and fixing of FUSE UNITS (ANCHOR /EQUIVALENT)
100 Amps Porcelain fuse unit (500 V)
200 Amps Porcelain fuse unit (500 V)
Supply, delivey and fixing of CHANGE OVER SWITCHES
32 Amps three phase 500 V 4 pole Change over switch
63 Amps three phase 500 V 4 pole Change over switch
200 Amps three phase 500 V 4 pole Change over switch
Supply, delivey and fixing of PVC INSULATED SINGLE CORE MULTI STRAND FIRE RETARDANT FLEXIBLE COPPER CABLE WITH ISI MARK CONFORMING TO IS
Supply, delivey and fixing of HRC - FUSES - HIGHER END
HRC - 16 Amps
HRC - 63 Amps
HRC - 200 Amps
Supply and delivery of the following Electrical Works :consumable items at the site of work to carryout the general maintenace works
Voltmeter Digital - Three Phase Class 1-AC
Ammeter Digital - Three Phase Class 1-1A
20W 4 Feet LED Fitting with LED (Higher end)
LED OUTDOOR FITTINGS (LIGHT EMITTING DIODE) LOWER END 25W LED Street Light Fitting with LED
Supply and delivery of the following consumable items for Pump Set repairs at the site of work to carryout the general maintenace works
80mm GM Gate valve
R I Sheet
Bolts and Nuts - All sizes
80mm GI Pipe
100mm GI pipe
125mm GI pipe
150mm GI pipe
Supply, delivery and fixing of DI D/F Gate sluice/scour valves (soft seated) resilient seated soft sealing Gate Valves(Sluice Valves) with body Bonnet of Ductile cast iron of Grade GGG 40 or equivalent grade, Wedge fully rubber lined with EPDM replaceable spindle nut without gland packing and with 3 O- Ring protection on the shaft and seals of NBR and the valves should be of Vacuum tight and 100% leak proof with face to face dimensions as per BS 5163- 89/ISI 14846-2000/DIN 3202 F4. All the valves should be with electrostatic powder coating both inside and out side with pocket less straight through body passage. All the valves are to be compatible for buried application with pressure rating PN 10/16 and with 5 years warranty.
100mm DI Gate Valve
150mm DI Gate Valve
200mm DI Gate Valve
250mm DI Gate Valve
Manufacture, Supply and Delivery of Tamper proof DI single chamber double orifice triple function (ventilating, admiting & ventilating during operation) air release valve with pressure rating PN 10/16 with body and cover made of Ductile Iron of Grade GGG 40 or GGG 50, conforming to IS 1865 with Food Grade Epoxy Powder coating (EP-P) inside and for outside of colour blue RAL 5005. All internal parts such as float, shell etc., cover bolts, made of Austenitic alloy steel of SS AISI 304/316. The float shall be made of Polytetrafluroethylene/ Austenitic alloy steel of AISI 304/316. Gaskets and seals of EPDM / Neoprene rubber for TWAD Board works anywhere in Tamil Nadu and with 5 years warranty
50mm DI Air Valve
80mm DI Air Valve
Supply, delivey and fixing of C.I. DOUBLE AIR VALVE AS PER ISI 14845/2000 AND WITH 5 YEARS WARRANTY
40mm CI Air Valve
50mm CI Air Valve
80mm CI Air Valve
SUMP CLEANING
Cleaning of all storage points like sumps, elevated reservoirs of various capacities available in this scheme at a frequency of once in two months including scrapping the inner side of compartment completely, scouring / dewatering / desilting using required machineries, materials, labour and all other incidental charges, application of bleaching powder/ solution etc complete.
For 75001 to 100000 lit cap sump
Desilting light or sandysoil or silt from collection well below water level including the charges for special tools & plants and air compressor etc complete
Supply, delivery and application of disinfection dosages as per standard norms / guidelines including cost of all disinfectents (Such as bleaching powder, chlorine cylinder, silver ionization rods, sodium hypochlorite solution, common salt as applicable to this CWSS), labour charges and all incidental charges for disinfection of the water supplied from this CWSS to ensure the portable quality of disinfected water at all delivery points / tail ends, testing of water samples including additional / required / instructed dosage during the period of Flood/ Calamities etc., complete.
Supply delivery of Bleaching Powder as per Relevant IS Specification
Supply delivery of Liquid Chlorine as per Relevant IS Specification
Supply delivery of Alum as per Relevant IS Specification
CWSS TO DEVIGAPURAM AND 11 OTHER HABITATIONS IN WEST ARANI AND CHETPET UNION OFTHIRUVANNAMALAI DISTRICT
Repair & Renewals and Leak & Bursts :
Attending Leaks in the PVC pipelines of this CWSS for the following items, as per the standard procedure including earthwork excavation, dewatering, removing, relaying, jointing, civil works, cost of materials and all other incidental charges, etc complete within the stipulated time limit as directed by the TWAD Board officers.
PVC 4 KSC Pipes_Minor Leak
75mm OD PVC 4 KSC pipes_Minor Leak
90mm OD PVC 4 KSC pipes_Minor Leak
140mm OD PVC 4 KSC pipes_Minor Leak
PVC 4 KSC Pipes_Major Leak
75mm OD PVC 4 KSC pipes_Major Leak
90mm OD PVC 4 KSC pipes_Major Leak
140mm OD PVC 4 KSC pipes_Major Leak
PVC 6 KSC Pipes_Minor Leak
140mm OD PVC 6 KSC pipes_Minor Leak
PVC 6 KSC Pipes_Major Leak
140mm OD PVC 6 KSC pipes_Major Leak
Attending Leaks/Bursts in the HDPE pipelines of this CWSS for the following items, as per the standard procedure including earthwork excavation, dewatering, removing, relaying, jointing by Electro fusion/butt Joint, civil works, cost of materials and all other incidental charges, etc complete within the stipulated time limit as directed by the TWAD Board officers.
HDPE PN 6 Pipes_Minor Leaks
75mm HDPE PN 6 pipes_Minor Leak
90mm HDPE PN 6 pipes_Minor Leak
140mm HDPE PN 6 pipes_Minor Leak
HDPE PN 6 Pipes_Major Leaks
75mm HDPE PN 6 pipes_Major Leak
90mm HDPE PN 6 pipes_Major Leak
140mm HDPE PN 6 pipes_Major Leak
Attending leaks and bursts in GI pipes of various sizes including Supply and delivery of following G I PIPES (MEDIUM) AS PER IS 1239/PART I/2004 and Lowering GI pipes and specials in the trenches and laying to proper grade and alignment, jointing with GI Specials and as directed by the TWAD Officers
65mm GI Pipe leak above GL
80mm GI Pipe leak above GL
125mm GI Pipe leak above GL
Attending joint (Collar) Leaks in the AC pipelines of this CWSS for the following items, as per the standard procedure including earthwork excavation, dewatering, removing, relaying, jointing, civil works, cost of materials and all incidental charges, etc complete within the stipulated time limit as specified in Clause 2.6.4 of General conditions of Contract
AC Pipe_Collar Leak
150mm AC_Collar Leak
200mm AC_Collar Leak
AC Pipe_Minor Leak centre crack
150mm AC Pipe_MS Cut Barrel
200mm AC Pipe_MS Cut Barrel
Labour for cutting open B.T. Roads (or) Maccadam road for laying water mains - 15 cm thick (SOR VOL II P.195)
For all size Pumping mains
Road Restoration with PCC 1:2:4 using 20 mm HBGS for the Concrete Road cut Portion after the pipes are laid, joined and tested complete and as directed by TWAD Board Officers - 15 cm thick
For all size Pumping mains
Supply and delivery of following sizes of HDPE PIPES - PE 100 AS PER IS 4984/2016 (Pre-Compounded Resin) inclusive of transportation charges to stockyard excluding unloading anywhere in Tamilnadu etc, complete and as directed by the TWAD Board officers. (SOR VOL II P.14)
160mm HDPE PN 6
140mm HDPE PN 6
90mm HDPE PN 6
75mm HDPE PN 6
Earth work excavation and depositing on bank with initial lead of 10 m and initial lift of 2m in narrow trenches for laying of pipes for water supply in the following types of soil
Hard stiff clay, stiff black cotton, hard red earth, shales, murrum gravel, stoney earth and earth mixed with small size boulders and hard gravelly soil. (SOR VOL II P.192)
160mm HDPE PN 6
140mm HDPE PN 6
90mm HDPE PN 6
75mm HDPE PN 6
Lowering HDPE pipes and specials to trench and laying to proper grade and alignment and as directed by the TWAD Officers. (SOR VOL II P.171)
160mm HDPE PN 6
140mm HDPE PN 6
90mm HDPE PN 6
75mm HDPE PN 6
Jointing HDPE Pipes and Specials by butt fusion welding / electro fusion welding joints using fusion equipment as per ISO 21307-2011 and as per IS 7634 (part-2) : 2012 including cost of hire charges for butt fusion equipment power supply arrangements etc., complete as per directed by TWAD Board Officers. (SOR VOL II P.184)
160mm HDPE PN 6
140mm HDPE PN 6
Refiling with excavated sand or other loose soil complying with standerd specification in layers of 15 cm thick well rammed and consolidated after pipes and specials are laid and tested. (SOR VOL II P.192)
160mm HDPE PN 6
140mm HDPE PN 6
90mm HDPE PN 6
75mm HDPE PN 6
Pumpsets
Carrying out the following repair works occuring during the maintenance period in the Electrical, Mechanical and Elctro-mechanical items to bring back the scheme / components into normal running conditition as per standard specification including all labour charges, cost of materials and all incidental charges within the stipulated time limit etc., complete as specified in Clause 2.8 of General conditions of Contract Part II etc as directed by TWAD Board officers
Attending the Rewinding, Repair and Renewal works in various capacity Open Well Submersible Pumpsets
Removing the Submersible pumpset by using tripod set after disconnecting the power supply cable and delivery pipe line fittings
5HP -OWS
Transporting the pumpset from Pump House to work shop.
5HP -OWS
Rewinding the submersible motor using best quality winding wire including cost of wire, Sleeve, other insulating and fibre class materials after deducting the cost of old materials.
5HP -OWS
Reconditioning the worn-out shaft and fittings, impeller and Gun Metal/ SS Bushes including cost of lath work & labour charges etc.,
5HP -OWS
Replacement of carbon type thrust bearing and pumpside Gun Metal Bush including cost of labour charges after deducting the cost of old material
5HP -OWS
Transporting charges for Submersible pumpset from work shop to Pump House after attending repair works.
5HP -OWS
Re-erection of pumpset in the Sump / Well by using tripod set and required Rubber washer and Bolt & Nuts and connecting the power supply cable and delivery pipeline arrangements testing to trial pumping.
5HP -OWS
Attending the Rewinding and replacement of bearings of Induction Motor for Horizontal Split Casing Pumpsets
30HP -HSC_Motor
Charges for removing the motor from bed after disconnection of power supply cable, Earthing line and Coupling arrangements by using contractor tools and materials.
Transportation charges for conveying the motor from the Booster Station to Our work shop including loading and unloading charges.
Labour Charges for removing the two end side cover with fan arrangements and the damaged driven end and non driven end bearings.
Charges for removing the burnt wires from the rotor assembly and cleaning and checking the slots of rotor and labour charges for rewinding of Centrifugal Squirrel Cage Induction Motor after deducting the cost of old materials and including suppy and delivery of Class ‘F’ Insulation Super enameled Copper wire, required for rewinding and Fiber Glass wire, Fiber Glass Sleeves, Class ‘F’ insulation paper, Copper Socket and FG thread required for rewinding of Squirrel Cage Induction Motor
Labour Charges for reconditioning the worn out shaft for driven end and non driven end bearing seating, knurling, bend checking, and etc.,
Supply and delivery of Driven End and Non Driven End bearings suitable for the required Induction Motor
Labour Charges fixing the DE and NDE bearings correctly and neatly with required lubrications by contractors tools & Materials
Transportation charges for conveying the motor from work shop to Pumping Station
Charges for reassembling the motor with bed and pump coupling, alignment checking connecting power supply cable, including required bolt and Nuts and testing trial running etc.,
Attending the Repair and Reconditioning works of various capacities of Horizontal Split Casing Pumpsets
30HP -HSC_Pump
Charges for removing the motor from bed assembly after dismantling of Coupling arrangements and removing the pump assembly and including the provision of dummy flange arrangements by using contractor tools and materials.
Transportation charges for conveying the Pump assembly from the Pumping Station to work shop including loading and unloading charges.
Labour Charges for removing the impeller by using hydralic system, DE and NDE Bearings
Labour Charges for reconditioning the worn out shaft including welding the shaft to suit the impeller and suit the driven end and non driven end bearing seating, knurling, bend checking and etc.,
Supply, delivery and fixing of Shaft sleeves in Gun metal including machining charges and making key ways after deducting the scrap materials
Balancing of Rotor with impeller both dyanamically and Hydralically by using required dyanamic balancing machine
Supply, delivery and fixing of Gunmetal seal rings for impeller neck including machining charges after deducting the scrap materials
Supply and delivery of Driven End and Non Driven End bearings
Labour Charges fixing the DE and NDE bearings correctly and neatly with required lubrications by contractors tools & Materials
Transportation charges for conveying the Pump assembly from work shop to Pumping Station.
Charges for reassembling the Pump with Motor by using pulley and alignment checking, including required bolt and Nuts and testing trial running etc.,
SUPPLY AND DELIVERY OF SERVICE CONNECTION ACCESSORIES L.T. 1100V PVC ALUMINIUM ARMOURED UNDER GROUND CABLE WITH ISI MARK
25 Sq.mm 3.5 Core
50 Sq.mm 3.5 Core
SUPPLY AND DELIVERY OF L.T. CABLES following size sq mm 3 CORE 1.1 KV GRADE ARMOURED ALUMINIUM CONDUCTOR CROSS LINKED POLY ETHYLENE INSULATED PVC SHEATHED CABLES CONFORMING TO IS 7098 (PART I)/1988 WITH ISI MARKING
25 Sq.mm 3 Core
50 Sq.mm 3 Core
SUPPLY AND DELIVERY OF PVC INSULATED AND SHEATHED following sq mm 3 CORE FLAT TYPE COPPER CABLE CONFORMING TO IS 694/1989
SUPPLY AND DELIVERY OF 150mm dia Pressure Gauge and Vaccum guage including all accessories as per specification (For Suction and Delivery to be mounted on wall on Teak Wood Board)
Supply, delivey and fixing of MOULDED CASE CIRCUIT BREAKER (MCCB) WITH THERMO MAGNETIC RELEASE - 4 Pole
Range - 63/100A
Range - 125A
Supply, delivey and fixing of RATE FOR MIXED DI-ELECTRIC CAPACITOR WITH TNEB TEST CERTIFICATE WITH ACCESSORIES INCLUDING BANKING CONFORMIING TO IS 2834.
Supply, delivey and fixing of Electro magnetic contactors of suitable capacity in AC Three Phase rating, conforming to IS/IEC 60947-4-1.
Supply, delivey and fixing of Overload Relays: Directly operated Bimetallic Thermal overload relay which operates in case of overload and also in case of under voltage with manual and auto reset mode.
Supply, delivey and fixing of Preventer – Single Phasing - Electric Motor protection device against single phasing. The device should protect the motor against single phasing, reverse phasing and unbalance supply. The device should be suitable for any auxillary device and have provisions for mounting in panel boards. Operate without need of any auxiliary supply.
Electric Motor protection device against dry running. The device should protect the motor against Dry running. The device should be suitable for any auxillary device and have provisions for mounting in panel boards. Operate without need of any auxiliary supply
Supply, delivey and fixing of FUSE UNITS (ANCHOR /EQUIVALENT)
63 Amps Porcelain fuse unit (500 V)
200 Amps Porcelain fuse unit (500 V)
Supply, delivey and fixing of CHANGE OVER SWITCHES
16 Amps three phase 500 V 4 pole Change over switch
32 Amps three phase 500 V 4 pole Change over switch
125 Amps three phase 500 V 4 pole Change over switch
Supply, delivey and fixing of PVC INSULATED SINGLE CORE MULTI STRAND FIRE RETARDANT FLEXIBLE COPPER CABLE WITH ISI MARK CONFORMING TO IS
Supply, delivey and fixing of HRC - FUSES - HIGHER END
HRC - 16 Amps
HRC - 32 Amps
HRC - 125 Amps
Supply and delivery of the following Electrical Works :consumable items at the site of work to carryout the general maintenace works
Voltmeter Digital - Three Phase Class 1-AC
Ammeter Digital - Three Phase Class 1-1A
20W 4 Feet LED Fitting with LED (Higher end)
LED OUTDOOR FITTINGS (LIGHT EMITTING DIODE) LOWER END 25W LED Street Light Fitting with LED
Supply and delivery of the following consumable items for Pump Set repairs at the site of work to carryout the general maintenace works
50mm GM Gate valve
65mm GM Gate valve
80mm GM Gate valve
100mm GM Gate valve
R I Sheet
Bolts and Nuts - All sizes
80mm GI Pipe
100mm GI pipe
125mm GI pipe
Supply, delivery and fixing of DI D/F Gate sluice/scour valves (soft seated) resilient seated soft sealing Gate Valves(Sluice Valves) with body Bonnet of Ductile cast iron of Grade GGG 40 or equivalent grade, Wedge fully rubber lined with EPDM replaceable spindle nut without gland packing and with 3 O- Ring protection on the shaft and seals of NBR and the valves should be of Vacuum tight and 100% leak proof with face to face dimensions as per BS 5163- 89/ISI 14846-2000/DIN 3202 F4. All the valves should be with electrostatic powder coating both inside and out side with pocket less straight through body passage. All the valves are to be compatible for buried application with pressure rating PN 10/16 and with 5 years warranty.
100mm DI Gate Valve
150mm DI Gate Valve
Manufacture, Supply and Delivery of Tamper proof DI single chamber double orifice triple function (ventilating, admiting & ventilating during operation) air release valve with pressure rating PN 10/16 with body and cover made of Ductile Iron of Grade GGG 40 or GGG 50, conforming to IS 1865 with Food Grade Epoxy Powder coating (EP-P) inside and for outside of colour blue RAL 5005. All internal parts such as float, shell etc., cover bolts, made of Austenitic alloy steel of SS AISI 304/316. The float shall be made of Polytetrafluroethylene/ Austenitic alloy steel of AISI 304/316. Gaskets and seals of EPDM / Neoprene rubber for TWAD Board works anywhere in Tamil Nadu and with 5 years warranty
50mm DI Air Valve
Supply, delivey and fixing of C.I. DOUBLE AIR VALVE AS PER ISI 14845/2000 AND WITH 5 YEARS WARRANTY
40mm CI Air Valve
50mm CI Air Valve
SUMP CLEANING
Cleaning of all storage points like sumps, elevated reservoirs of various capacities available in this scheme at a frequency of once in two months including scrapping the inner side of compartment completely, scouring / dewatering / desilting using required machineries, materials, labour and all other incidental charges, application of bleaching powder/ solution etc complete.
For 15001 to 30000 lit cap sump
Desilting light or sandysoil or silt from collection well below water level including the charges for special tools & plants and air compressor etc complete
Supply, delivery and application of disinfection dosages as per standard norms / guidelines including cost of all disinfectents (Such as bleaching powder, chlorine cylinder, silver ionization rods, sodium hypochlorite solution, common salt as applicable to this CWSS), labour charges and all incidental charges for disinfection of the water supplied from this CWSS to ensure the portable quality of disinfected water at all delivery points / tail ends, testing of water samples including additional / required / instructed dosage during the period of Flood/ Calamities etc., complete.
Supply delivery of Bleaching Powder as per Relevant IS Specification
COMBINED WATER SUPPLY SCHEME TO PADAVEDU AND 46 OTHER RURAL HABITATIONS IN TIRUVANNAMALAI DISTRICT
Operation and Maintenance of the Electro Mechanical installations, equipments, components, pipelines valves and appurtenances, water retaining structures including protecton of all schemee components from damages/ theft undertaking legal actions for such untoward incidents, preventive maintenance, disinfection and deliverance of water as per quality standards and supply of earmarked quantity of water to the beneficiaries as per Annexure .........., carrying out the O&M as per standard operating procedures, Acts and rules in force and as directed by TWAD Board Oficers and excluding cost towards attending leak, burst repair and replacement works to electro mechanical installations consumables for disinfection of water, cleaning of all water retaining structure, electricity .
Repair & Renewals and Leak & Bursts :
Attending Leaks in the PVC pipelines of this CWSS for the following items, as per the standard procedure including earthwork excavation, dewatering, removing, relaying, jointing, civil works, cost of materials and all other incidental charges, etc complete within the stipulated time limit as directed by the TWAD Board officers.
PVC 4 KSC Pipes_Minor Leak
63mm OD PVC 4 KSC pipes_Minor Leak
75mm OD PVC 4 KSC pipes_Minor Leak
90mm OD PVC 4 KSC pipes_Minor Leak
110mm OD PVC 4 KSC pipes_Minor Leak
140mm OD PVC 4 KSC pipes_Minor Leak
160mm OD PVC 4 KSC pipes_Minor Leak
PVC 4 KSC Pipes_Major Leak
63mm OD PVC 4 KSC pipes_Major Leak
75mm OD PVC 4 KSC pipes_Major Leak
90mm OD PVC 4 KSC pipes_Major Leak
110mm OD PVC 4 KSC pipes_Major Leak
140mm OD PVC 4 KSC pipes_Major Leak
160mm OD PVC 4 KSC pipes_Major Leak
PVC 6 KSC Pipes_Minor Leak
50mm OD PVC 6 KSC pipes_Minor Leak
63mm OD PVC 6 KSC pipes_Minor Leak
75mm OD PVC 6 KSC pipes_Minor Leak
90mm OD PVC 6 KSC pipes_Minor Leak
110mm OD PVC 6 KSC pipes_Minor Leak
140mm OD PVC 6 KSC pipes_Minor Leak
160mm OD PVC 6 KSC pipes_Minor Leak
PVC 6 KSC Pipes_Major Leak
50mm OD PVC 6 KSC pipes_Major Leak
63mm OD PVC 6 KSC pipes_Major Leak
75mm OD PVC 6 KSC pipes_Major Leak
90mm OD PVC 6 KSC pipes_Major Leak
110mm OD PVC 6 KSC pipes_Major Leak
140mm OD PVC 6 KSC pipes_Major Leak
160mm OD PVC 6 KSC pipes_Major Leak
Attending Leaks/Bursts in the HDPE pipelines of this CWSS for the following items, as per the standard procedure including earthwork excavation, dewatering, removing, relaying, jointing by Electro fusion/butt Joint, civil works, cost of materials and all other incidental charges, etc complete within the stipulated time limit as directed by the TWAD Board officers.
HDPE PN 6 Pipes_Minor Leaks
63mm HDPE PN 6 pipes_Minor Leak
75mm HDPE PN 6 pipes_Minor Leak
110mm HDPE PN 6 pipes_Minor Leak
140mm HDPE PN 6 pipes_Minor Leak
160mm HDPE PN 6 pipes_Minor Leak
HDPE PN 6 Pipes_Major Leaks
63mm HDPE PN 6 pipes_Major Leak
75mm HDPE PN 6 pipes_Major Leak
110mm HDPE PN 6 pipes_Major Leak
140mm HDPE PN 6 pipes_Major Leak
160mm HDPE PN 6 pipes_Major Leak
Attending leaks and bursts in GI pipes of various sizes including Supply and delivery of following G I PIPES (MEDIUM) AS PER IS 1239/PART I/2004 and Lowering GI pipes and specials in the trenches and laying to proper grade and alignment, jointing with GI Specials and as directed by the TWAD Officers
50mm GI Pipe leak above GL
65mm GI Pipe leak above GL
80mm GI Pipe leak above GL
100mm GI Pipe leak above GL
125mm GI Pipe leak above GL
150mm GI Pipe leak above GL
Attending Leaks/Bursts in the DI pipelines of this CWSS for the following items, as per the standard procedure including earthwork excavation, dewatering, removing, relaying, jointing, civil works, cost of materials and all incidental charges, etc complete within the stipulated time limit as specified in Clause 2.6.4 of General conditions of Contract
DI Pipes_Minor Leak
150mm DI pipes - Minor leak
DI Pipes_Major Leak
150mm DI pipes - Major leak
Labour for cutting open B.T. Roads (or) Maccadam road for laying water mains - 15 cm thick (SOR VOL II P.195)
For all size Pumping mains
Road Restoration with PCC 1:2:4 using 20 mm HBGS for the Concrete Road cut Portion after the pipes are laid, joined and tested complete and as directed by TWAD Board Officers - 15 cm thick
For all size Pumping mains
Supply and delivery of following sizes of HDPE PIPES - PE 100 AS PER IS 4984/2016 (Pre-Compounded Resin) inclusive of transportation charges to stockyard excluding unloading anywhere in Tamilnadu etc, complete and as directed by the TWAD Board officers. (SOR VOL II P.14)
160mm HDPE PN 6
140mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
75mm HDPE PN 6
63mm HDPE PN 6
Earth work excavation and depositing on bank with initial lead of 10 m and initial lift of 2m in narrow trenches for laying of pipes for water supply in the following types of soil
Hard stiff clay, stiff black cotton, hard red earth, shales, murrum gravel, stoney earth and earth mixed with small size boulders and hard gravelly soil. (SOR VOL II P.192)
160mm HDPE PN 6
140mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
75mm HDPE PN 6
63mm HDPE PN 6
Lowering HDPE pipes and specials to trench and laying to proper grade and alignment and as directed by the TWAD Officers. (SOR VOL II P.171)
160mm HDPE PN 6
140mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
75mm HDPE PN 6
63mm HDPE PN 6
Jointing HDPE Pipes and Specials by butt fusion welding / electro fusion welding joints using fusion equipment as per ISO 21307-2011 and as per IS 7634 (part-2) : 2012 including cost of hire charges for butt fusion equipment power supply arrangements etc., complete as per directed by TWAD Board Officers. (SOR VOL II P.184)
160mm HDPE PN 6
140mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
75mm HDPE PN 6
63mm HDPE PN 6
Refiling with excavated sand or other loose soil complying with standerd specification in layers of 15 cm thick well rammed and consolidated after pipes and specials are laid and tested. (SOR VOL II P.192)
160mm HDPE PN 6
140mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
75mm HDPE PN 6
63mm HDPE PN 6
Pumpsets
Carrying out the following repair works occuring during the maintenance period in the Electrical, Mechanical and Elctro-mechanical items to bring back the scheme / components into normal running conditition as per standard specification including all labour charges, cost of materials and all incidental charges within the stipulated time limit etc., complete as specified in Clause 2.8 of General conditions of Contract Part II etc as directed by TWAD Board officers
Attending the Rewinding, Repair and Renewal works in various capacity Open Well Submersible Pumpsets
Removing the Submersible pumpset by using tripod set after disconnecting the power supply cable and delivery pipe line fittings
2HP -OWS
3HP -OWS
5HP -OWS
7.5HP -OWS
30HP -OWS
Transporting the pumpset from Pump House to work shop.
2HP -OWS
3HP -OWS
5HP -OWS
7.5HP -OWS
30HP -OWS
Rewinding the submersible motor using best quality winding wire including cost of wire, Sleeve, other insulating and fibre class materials after deducting the cost of old materials.
2HP -OWS
3HP -OWS
5HP -OWS
7.5HP -OWS
30HP -OWS
Reconditioning the worn-out shaft and fittings, impeller and Gun Metal/ SS Bushes including cost of lath work & labour charges etc.,
2HP -OWS
3HP -OWS
5HP -OWS
7.5HP -OWS
30HP -OWS
Replacement of carbon type thrust bearing and pumpside Gun Metal Bush including cost of labour charges after deducting the cost of old material
2HP -OWS
3HP -OWS
5HP -OWS
7.5HP -OWS
30HP -OWS
Transporting charges for Submersible pumpset from work shop to Pump House after attending repair works.
2HP -OWS
3HP -OWS
5HP -OWS
7.5HP -OWS
30HP -OWS
Re-erection of pumpset in the Sump / Well by using tripod set and required Rubber washer and Bolt & Nuts and connecting the power supply cable and delivery pipeline arrangements testing to trial pumping.
2HP -OWS
3HP -OWS
5HP -OWS
7.5HP -OWS
30HP -OWS
SUPPLY AND DELIVERY OF SERVICE CONNECTION ACCESSORIES L.T. 1100V PVC ALUMINIUM ARMOURED UNDER GROUND CABLE WITH ISI MARK
25 Sq.mm 3.5 Core
35 Sq.mm 3.5 Core
50 Sq.mm 3.5 Core
SUPPLY AND DELIVERY OF L.T. CABLES following size sq mm 3 CORE 1.1 KV GRADE ARMOURED ALUMINIUM CONDUCTOR CROSS LINKED POLY ETHYLENE INSULATED PVC SHEATHED CABLES CONFORMING TO IS 7098 (PART I)/1988 WITH ISI MARKING
25 Sq.mm 3 Core
35 Sq.mm 3 Core
50 Sq.mm 3 Core
SUPPLY AND DELIVERY OF PVC INSULATED AND SHEATHED following sq mm 3 CORE FLAT TYPE COPPER CABLE CONFORMING TO IS 694/1989
SUPPLY AND DELIVERY OF 150mm dia Pressure Gauge and Vaccum guage including all accessories as per specification (For Suction and Delivery to be mounted on wall on Teak Wood Board)
Supply, delivey and fixing of MOULDED CASE CIRCUIT BREAKER (MCCB) WITH THERMO MAGNETIC RELEASE - 4 Pole
Range - 63/100A
Range - 125A
Supply, delivey and fixing of RATE FOR MIXED DI-ELECTRIC CAPACITOR WITH TNEB TEST CERTIFICATE WITH ACCESSORIES INCLUDING BANKING CONFORMIING TO IS 2834.
Supply, delivey and fixing of Electro magnetic contactors of suitable capacity in AC Three Phase rating, conforming to IS/IEC 60947-4-1.
Supply, delivey and fixing of Overload Relays: Directly operated Bimetallic Thermal overload relay which operates in case of overload and also in case of under voltage with manual and auto reset mode.
Supply, delivey and fixing of Preventer – Single Phasing - Electric Motor protection device against single phasing. The device should protect the motor against single phasing, reverse phasing and unbalance supply. The device should be suitable for any auxillary device and have provisions for mounting in panel boards. Operate without need of any auxiliary supply.
Electric Motor protection device against dry running. The device should protect the motor against Dry running. The device should be suitable for any auxillary device and have provisions for mounting in panel boards. Operate without need of any auxiliary supply
Supply, delivey and fixing of FUSE UNITS (ANCHOR /EQUIVALENT)
63 Amps Porcelain fuse unit (500 V)
100 Amps Porcelain fuse unit (500 V)
200 Amps Porcelain fuse unit (500 V)
Supply, delivey and fixing of CHANGE OVER SWITCHES
32 Amps three phase 500 V 4 pole Change over switch
63 Amps three phase 500 V 4 pole Change over switch
200 Amps three phase 500 V 4 pole Change over switch
Supply, delivey and fixing of PVC INSULATED SINGLE CORE MULTI STRAND FIRE RETARDANT FLEXIBLE COPPER CABLE WITH ISI MARK CONFORMING TO IS
Supply, delivey and fixing of HRC - FUSES - HIGHER END
HRC - 32 Amps
HRC - 63 Amps
HRC - 200 Amps
Supply and delivery of the following Electrical Works :consumable items at the site of work to carryout the general maintenace works
Voltmeter Digital - Three Phase Class 1-AC
Ammeter Digital - Three Phase Class 1-1A
20W 4 Feet LED Fitting with LED (Higher end)
LED OUTDOOR FITTINGS (LIGHT EMITTING DIODE) LOWER END 25W LED Street Light Fitting with LED
Supply and delivery of the following consumable items for Pump Set repairs at the site of work to carryout the general maintenace works
50mm GM Gate valve
65mm GM Gate valve
80mm GM Gate valve
100mm GM Gate valve
R I Sheet
Bolts and Nuts - All sizes
50mm GI Pipe
65mm GI Pipe
80mm GI Pipe
100mm GI pipe
125mm GI pipe
150mm GI pipe
Supply, delivery and fixing of DI D/F Gate sluice/scour valves (soft seated) resilient seated soft sealing Gate Valves(Sluice Valves) with body Bonnet of Ductile cast iron of Grade GGG 40 or equivalent grade, Wedge fully rubber lined with EPDM replaceable spindle nut without gland packing and with 3 O- Ring protection on the shaft and seals of NBR and the valves should be of Vacuum tight and 100% leak proof with face to face dimensions as per BS 5163- 89/ISI 14846-2000/DIN 3202 F4. All the valves should be with electrostatic powder coating both inside and out side with pocket less straight through body passage. All the valves are to be compatible for buried application with pressure rating PN 10/16 and with 5 years warranty.
100mm DI Gate Valve
150mm DI Gate Valve
Manufacture, Supply and Delivery of Tamper proof DI single chamber double orifice triple function (ventilating, admiting & ventilating during operation) air release valve with pressure rating PN 10/16 with body and cover made of Ductile Iron of Grade GGG 40 or GGG 50, conforming to IS 1865 with Food Grade Epoxy Powder coating (EP-P) inside and for outside of colour blue RAL 5005. All internal parts such as float, shell etc., cover bolts, made of Austenitic alloy steel of SS AISI 304/316. The float shall be made of Polytetrafluroethylene/ Austenitic alloy steel of AISI 304/316. Gaskets and seals of EPDM / Neoprene rubber for TWAD Board works anywhere in Tamil Nadu and with 5 years warranty
50mm DI Air Valve
Supply, delivey and fixing of C.I. DOUBLE AIR VALVE AS PER ISI 14845/2000 AND WITH 5 YEARS WARRANTY
40mm CI Air Valve
50mm CI Air Valve
SUMP CLEANING
Cleaning of all storage points like sumps, elevated reservoirs of various capacities available in this scheme at a frequency of once in two months including scrapping the inner side of compartment completely, scouring / dewatering / desilting using required machineries, materials, labour and all other incidental charges, application of bleaching powder/ solution etc complete.
For 15001 to 30000 lit cap sump
For 30001 to 45000 lit cap sump
For 45001 to 60000 lit cap sump
Desilting light or sandysoil or silt from collection well below water level including the charges for special tools & plants and air compressor etc complete
Supply, delivery and application of disinfection dosages as per standard norms / guidelines including cost of all disinfectents (Such as bleaching powder, chlorine cylinder, silver ionization rods, sodium hypochlorite solution, common salt as applicable to this CWSS), labour charges and all incidental charges for disinfection of the water supplied from this CWSS to ensure the portable quality of disinfected water at all delivery points / tail ends, testing of water samples including additional / required / instructed dosage during the period of Flood/ Calamities etc., complete.
Supply delivery of Bleaching Powder as per Relevant IS Specification
CWSS TO VETTAVALAM RTP AND VAIPUR HABITATION IN TIRUVANNAMALAI DISTRICT
Operation and Maintenance of the Electro Mechanical installations, equipments, components, pipelines valves and appurtenances, water retaining structures including protecton of all schemee components from damages/ theft undertaking legal actions for such untoward incidents, preventive maintenance, disinfection and deliverance of water as per quality standards and supply of earmarked quantity of water to the beneficiaries as per Annexure .........., carrying out the O&M as per standard operating procedures, Acts and rules in force and as directed by TWAD Board Oficers and excluding cost towards attending leak, burst repair and replacement works to electro mechanical installations consumables for disinfection of water, cleaning of all water retaining structure, electricity .
Repair & Renewals and Leak & Bursts :
Attending joint (Collar) Leaks in the AC pipelines of this CWSS for the following items, as per the standard procedure including earthwork excavation, dewatering, removing, relaying, jointing, civil works, cost of materials and all incidental charges, etc complete within the stipulated time limit as specified in Clause 2.6.4 of General conditions of Contract
AC Pipe_Collar Leak
200mm AC_Collar Leak
AC Pipe_Minor Leak centre crack
200mm AC Pipe_MS Cut Barrel
Attending Leaks/Bursts in the DI pipelines of this CWSS for the following items, as per the standard procedure including earthwork excavation, dewatering, removing, relaying, jointing, civil works, cost of materials and all incidental charges, etc complete within the stipulated time limit as specified in Clause 2.6.4 of General conditions of Contract
DI Pipes_Minor Leak
200mm DI pipes - Minor leak
DI Pipes_Major Leak
200mm DI pipes - Major leak
Labour for cutting open B.T. Roads (or) Maccadam road for laying water mains - 15 cm thick (SOR VOL II P.195)
For all size Pumping mains
Road Restoration with PCC 1:2:4 using 20 mm HBGS for the Concrete Road cut Portion after the pipes are laid, joined and tested complete and as directed by TWAD Board Officers - 15 cm thick
For all size Pumping mains
Supply and conveying of DI DUCTILE IRON SOCKET/SPIGOT PIPES FOR CLASS K7 AS PER IS 8329/2000 for standard length including cost of pipe,testing charges at factory ,labour charges for loading,unloading and stacking at site etc.(SOR VOL II P.35)
200mm DI S/S K7 pipe
Supply and delivery of following sizes of HDPE PIPES - PE 100 AS PER IS 4984/2016 (Pre-Compounded Resin) inclusive of transportation charges to stockyard excluding unloading anywhere in Tamilnadu etc, complete and as directed by the TWAD Board officers. (SOR VOL II P.14)
90mm HDPE PN 6
Earth work excavation and depositing on bank with initial lead of 10 m and initial lift of 2m in narrow trenches for laying of pipes for water supply in the following types of soil
Hard stiff clay, stiff black cotton, hard red earth, shales, murrum gravel, stoney earth and earth mixed with small size boulders and hard gravelly soil. (SOR VOL II P.192)
200mm DI S/S K7 pipe
90mm HDPE PN 6
Lowering of D.I Pipes and specials in the trenches and laying to proper grade and alignment and as directed by the TWAD Officers.
200mm DI S/S K7 pipe
Jointing C.I/ D.I-S/S pipes and specials with rubber gaskets (tyton joint) including cost of lubricants. (including cost of jointing materials)(SOR VOL II P.164)
200mm DI S/S K7 pipe
Lowering HDPE pipes and specials to trench and laying to proper grade and alignment and as directed by the TWAD Officers. (SOR VOL II P.171)
90mm HDPE PN 6
Jointing HDPE Pipes and Specials by butt fusion welding / electro fusion welding joints using fusion equipment as per ISO 21307-2011 and as per IS 7634 (part-2) : 2012 including cost of hire charges for butt fusion equipment power supply arrangements etc., complete as per directed by TWAD Board Officers. (SOR VOL II P.184)
Refiling with excavated sand or other loose soil complying with standerd specification in layers of 15 cm thick well rammed and consolidated after pipes and specials are laid and tested. (SOR VOL II P.192)
200mm DI S/S K7 pipe
90mm HDPE PN 6
Pumpsets
Carrying out the following repair works occuring during the maintenance period in the Electrical, Mechanical and Elctro-mechanical items to bring back the scheme / components into normal running conditition as per standard specification including all labour charges, cost of materials and all incidental charges within the stipulated time limit etc., complete as specified in Clause 2.8 of General conditions of Contract Part II etc as directed by TWAD Board officers
Attending the Rewinding, Repair and Renewal works in various capacity Open Well Submersible Pumpsets
Removing the Submersible pumpset by using tripod set after disconnecting the power supply cable and delivery pipe line fittings
7.5HP -OWS
10HP -OWS
30HP -OWS
40HP -OWS
Transporting the pumpset from Pump House to work shop.
7.5HP -OWS
10HP -OWS
30HP -OWS
40HP -OWS
Rewinding the submersible motor using best quality winding wire including cost of wire, Sleeve, other insulating and fibre class materials after deducting the cost of old materials.
7.5HP -OWS
10HP -OWS
30HP -OWS
40HP -OWS
Reconditioning the worn-out shaft and fittings, impeller and Gun Metal/ SS Bushes including cost of lath work & labour charges etc.,
7.5HP -OWS
10HP -OWS
30HP -OWS
40HP -OWS
Replacement of carbon type thrust bearing and pumpside Gun Metal Bush including cost of labour charges after deducting the cost of old material
7.5HP -OWS
10HP -OWS
30HP -OWS
40HP -OWS
Transporting charges for Submersible pumpset from work shop to Pump House after attending repair works.
7.5HP -OWS
10HP -OWS
30HP -OWS
40HP -OWS
Re-erection of pumpset in the Sump / Well by using tripod set and required Rubber washer and Bolt & Nuts and connecting the power supply cable and delivery pipeline arrangements testing to trial pumping.
7.5HP -OWS
10HP -OWS
30HP -OWS
40HP -OWS
SUPPLY AND DELIVERY OF SERVICE CONNECTION ACCESSORIES L.T. 1100V PVC ALUMINIUM ARMOURED UNDER GROUND CABLE WITH ISI MARK
25 Sq.mm 3.5 Core
35 Sq.mm 3.5 Core
95 Sq.mm 3.5 Core
SUPPLY AND DELIVERY OF L.T. CABLES following size sq mm 3 CORE 1.1 KV GRADE ARMOURED ALUMINIUM CONDUCTOR CROSS LINKED POLY ETHYLENE INSULATED PVC SHEATHED CABLES CONFORMING TO IS 7098 (PART I)/1988 WITH ISI MARKING
25 Sq.mm 3 Core
50 Sq.mm 3 Core
70 Sq.mm 3Core
SUPPLY AND DELIVERY OF PVC INSULATED AND SHEATHED following sq mm 3 CORE FLAT TYPE COPPER CABLE CONFORMING TO IS 694/1989
SUPPLY AND DELIVERY OF 150mm dia Pressure Gauge and Vaccum guage including all accessories as per specification (For Suction and Delivery to be mounted on wall on Teak Wood Board)
Supply, delivey and fixing of MOULDED CASE CIRCUIT BREAKER (MCCB) WITH THERMO MAGNETIC RELEASE - 4 Pole
Range - 63/100A
Range - 125A
Range - 160A
Supply, delivey and fixing of RATE FOR MIXED DI-ELECTRIC CAPACITOR WITH TNEB TEST CERTIFICATE WITH ACCESSORIES INCLUDING BANKING CONFORMIING TO IS 2834.
Supply, delivey and fixing of Electro magnetic contactors of suitable capacity in AC Three Phase rating, conforming to IS/IEC 60947-4-1.
Supply, delivey and fixing of Overload Relays: Directly operated Bimetallic Thermal overload relay which operates in case of overload and also in case of under voltage with manual and auto reset mode.
Supply, delivey and fixing of Preventer – Single Phasing - Electric Motor protection device against single phasing. The device should protect the motor against single phasing, reverse phasing and unbalance supply. The device should be suitable for any auxillary device and have provisions for mounting in panel boards. Operate without need of any auxiliary supply.
Electric Motor protection device against dry running. The device should protect the motor against Dry running. The device should be suitable for any auxillary device and have provisions for mounting in panel boards. Operate without need of any auxiliary supply
Supply, delivey and fixing of FUSE UNITS (ANCHOR /EQUIVALENT)
200 Amps Porcelain fuse unit (500 V)
Supply, delivey and fixing of CHANGE OVER SWITCHES
32 Amps three phase 500 V 4 pole Change over switch
63 Amps three phase 500 V 4 pole Change over switch
Supply, delivey and fixing of PVC INSULATED SINGLE CORE MULTI STRAND FIRE RETARDANT FLEXIBLE COPPER CABLE WITH ISI MARK CONFORMING TO IS
Supply, delivey and fixing of HRC - FUSES - HIGHER END
HRC - 32 Amps
HRC - 63 Amps
Supply and delivery of the following Electrical Works :consumable items at the site of work to carryout the general maintenace works
Voltmeter Digital - Three Phase Class 1-AC
Ammeter Digital - Three Phase Class 1-1A
20W 4 Feet LED Fitting with LED (Higher end)
LED OUTDOOR FITTINGS (LIGHT EMITTING DIODE) LOWER END 25W LED Street Light Fitting with LED
Supply and delivery of the following consumable items for Pump Set repairs at the site of work to carryout the general maintenace works
80mm GM Gate valve
100mm GM Gate valve
R I Sheet
Bolts and Nuts - All sizes
150mm GI pipe
Supply, delivery and fixing of DI D/F Gate sluice/scour valves (soft seated) resilient seated soft sealing Gate Valves(Sluice Valves) with body Bonnet of Ductile cast iron of Grade GGG 40 or equivalent grade, Wedge fully rubber lined with EPDM replaceable spindle nut without gland packing and with 3 O- Ring protection on the shaft and seals of NBR and the valves should be of Vacuum tight and 100% leak proof with face to face dimensions as per BS 5163- 89/ISI 14846-2000/DIN 3202 F4. All the valves should be with electrostatic powder coating both inside and out side with pocket less straight through body passage. All the valves are to be compatible for buried application with pressure rating PN 10/16 and with 5 years warranty.
100mm DI Gate Valve
150mm DI Gate Valve
Manufacture, Supply and Delivery of Tamper proof DI single chamber double orifice triple function (ventilating, admiting & ventilating during operation) air release valve with pressure rating PN 10/16 with body and cover made of Ductile Iron of Grade GGG 40 or GGG 50, conforming to IS 1865 with Food Grade Epoxy Powder coating (EP-P) inside and for outside of colour blue RAL 5005. All internal parts such as float, shell etc., cover bolts, made of Austenitic alloy steel of SS AISI 304/316. The float shall be made of Polytetrafluroethylene/ Austenitic alloy steel of AISI 304/316. Gaskets and seals of EPDM / Neoprene rubber for TWAD Board works anywhere in Tamil Nadu and with 5 years warranty
50mm DI Air Valve
Supply, delivey and fixing of C.I. DOUBLE AIR VALVE AS PER ISI 14845/2000 AND WITH 5 YEARS WARRANTY
50mm CI Air Valve
SUMP CLEANING
Cleaning of all storage points like sumps, elevated reservoirs of various capacities available in this scheme at a frequency of once in two months including scrapping the inner side of compartment completely, scouring / dewatering / desilting using required machineries, materials, labour and all other incidental charges, application of bleaching powder/ solution etc complete.
For 75001 to 100000 lit cap sump
Desilting light or sandysoil or silt from collection well below water level including the charges for special tools & plants and air compressor etc complete
Supply, delivery and application of disinfection dosages as per standard norms / guidelines including cost of all disinfectents (Such as bleaching powder, chlorine cylinder, silver ionization rods, sodium hypochlorite solution, common salt as applicable to this CWSS), labour charges and all incidental charges for disinfection of the water supplied from this CWSS to ensure the portable quality of disinfected water at all delivery points / tail ends, testing of water samples including additional / required / instructed dosage during the period of Flood/ Calamities etc., complete.
Supply delivery of Bleaching Powder as per Relevant IS Specification
WSS TO AAVIN DAIRY CUM POWDER PLANT AT AMMAPALAYAM IN TIRUVANNAMALAI DISTRICT
Operation and Maintenance of the Electro Mechanical installations, equipments, components, pipelines valves and appurtenances, water retaining structures including protecton of all schemee components from damages/ theft undertaking legal actions for such untoward incidents, preventive maintenance, disinfection and deliverance of water as per quality standards and supply of earmarked quantity of water to the beneficiaries as per Annexure .........., carrying out the O&M as per standard operating procedures, Acts and rules in force and as directed by TWAD Board Oficers and excluding cost towards attending leak, burst repair and replacement works to electro mechanical installations consumables for disinfection of water, cleaning of all water retaining structure, electricity .
Repair & Renewals and Leak & Bursts :
Attending Leaks/Bursts in the DI pipelines of this CWSS for the following items, as per the standard procedure including earthwork excavation, dewatering, removing, relaying, jointing, civil works, cost of materials and all incidental charges, etc complete within the stipulated time limit as specified in Clause 2.6.4 of General conditions of Contract
DI Pipes_Minor Leak
150mm DI pipes - Minor leak
DI Pipes_Major Leak
150mm DI pipes - Major leak
Labour for cutting open B.T. Roads (or) Maccadam road for laying water mains - 15 cm thick (SOR VOL II P.195)
For all size Pumping mains
Road Restoration with PCC 1:2:4 using 20 mm HBGS for the Concrete Road cut Portion after the pipes are laid, joined and tested complete and as directed by TWAD Board Officers - 15 cm thick
For all size Pumping mains
Supply and conveying of DI DUCTILE IRON SOCKET/SPIGOT PIPES FOR CLASS K7 AS PER IS 8329/2000 for standard length including cost of pipe,testing charges at factory ,labour charges for loading,unloading and stacking at site etc.(SOR VOL II P.35)
150mm DI S/S K7 pipe
Earth work excavation and depositing on bank with initial lead of 10 m and initial lift of 2m in narrow trenches for laying of pipes for water supply in the following types of soil
Hard stiff clay, stiff black cotton, hard red earth, shales, murrum gravel, stoney earth and earth mixed with small size boulders and hard gravelly soil. (SOR VOL II P.192)
150mm DI S/S K7 pipe
Lowering of D.I Pipes and specials in the trenches and laying to proper grade and alignment and as directed by the TWAD Officers.
150mm DI S/S K7 pipe
Jointing C.I/ D.I-S/S pipes and specials with rubber gaskets (tyton joint) including cost of lubricants. (including cost of jointing materials)(SOR VOL II P.164)
150mm DI S/S K7 pipe
Refiling with excavated sand or other loose soil complying with standerd specification in layers of 15 cm thick well rammed and consolidated after pipes and specials are laid and tested. (SOR VOL II P.192)
150mm DI S/S K7 pipe
Pumpsets
Carrying out the following repair works occuring during the maintenance period in the Electrical, Mechanical and Elctro-mechanical items to bring back the scheme / components into normal running conditition as per standard specification including all labour charges, cost of materials and all incidental charges within the stipulated time limit etc., complete as specified in Clause 2.8 of General conditions of Contract Part II etc as directed by TWAD Board officers
Attending the Rewinding, Repair and Renewal works in various capacity Open Well Submersible Pumpsets
Removing the Submersible pumpset by using tripod set after disconnecting the power supply cable and delivery pipe line fittings
5HP -OWS
25HP -OWS
Transporting the pumpset from Pump House to work shop.
5HP -OWS
25HP -OWS
Rewinding the submersible motor using best quality winding wire including cost of wire, Sleeve, other insulating and fibre class materials after deducting the cost of old materials.
5HP -OWS
25HP -OWS
Reconditioning the worn-out shaft and fittings, impeller and Gun Metal/ SS Bushes including cost of lath work & labour charges etc.,
5HP -OWS
25HP -OWS
Replacement of carbon type thrust bearing and pumpside Gun Metal Bush including cost of labour charges after deducting the cost of old material
5HP -OWS
25HP -OWS
Transporting charges for Submersible pumpset from work shop to Pump House after attending repair works.
5HP -OWS
25HP -OWS
Re-erection of pumpset in the Sump / Well by using tripod set and required Rubber washer and Bolt & Nuts and connecting the power supply cable and delivery pipeline arrangements testing to trial pumping.
5HP -OWS
25HP -OWS
SUPPLY AND DELIVERY OF SERVICE CONNECTION ACCESSORIES L.T. 1100V PVC ALUMINIUM ARMOURED UNDER GROUND CABLE WITH ISI MARK
25 Sq.mm 3.5 Core
50 Sq.mm 3.5 Core
SUPPLY AND DELIVERY OF L.T. CABLES following size sq mm 3 CORE 1.1 KV GRADE ARMOURED ALUMINIUM CONDUCTOR CROSS LINKED POLY ETHYLENE INSULATED PVC SHEATHED CABLES CONFORMING TO IS 7098 (PART I)/1988 WITH ISI MARKING
25 Sq.mm 3 Core
SUPPLY AND DELIVERY OF PVC INSULATED AND SHEATHED following sq mm 3 CORE FLAT TYPE COPPER CABLE CONFORMING TO IS 694/1989
SUPPLY AND DELIVERY OF 150mm dia Pressure Gauge and Vaccum guage including all accessories as per specification (For Suction and Delivery to be mounted on wall on Teak Wood Board)
Supply, delivey and fixing of MOULDED CASE CIRCUIT BREAKER (MCCB) WITH THERMO MAGNETIC RELEASE - 4 Pole
Range - 63/100A
Supply, delivey and fixing of RATE FOR MIXED DI-ELECTRIC CAPACITOR WITH TNEB TEST CERTIFICATE WITH ACCESSORIES INCLUDING BANKING CONFORMIING TO IS 2834.
Supply, delivey and fixing of Electro magnetic contactors of suitable capacity in AC Three Phase rating, conforming to IS/IEC 60947-4-1.
Supply, delivey and fixing of Overload Relays: Directly operated Bimetallic Thermal overload relay which operates in case of overload and also in case of under voltage with manual and auto reset mode.
Supply, delivey and fixing of Preventer – Single Phasing - Electric Motor protection device against single phasing. The device should protect the motor against single phasing, reverse phasing and unbalance supply. The device should be suitable for any auxillary device and have provisions for mounting in panel boards. Operate without need of any auxiliary supply.
Electric Motor protection device against dry running. The device should protect the motor against Dry running. The device should be suitable for any auxillary device and have provisions for mounting in panel boards. Operate without need of any auxiliary supply
Supply, delivey and fixing of FUSE UNITS (ANCHOR /EQUIVALENT)
200 Amps Porcelain fuse unit (500 V)
Supply, delivey and fixing of CHANGE OVER SWITCHES
32 Amps three phase 500 V 4 pole Change over switch
100 Amps three phase 500 V 4 pole Change over switch
Supply, delivey and fixing of PVC INSULATED SINGLE CORE MULTI STRAND FIRE RETARDANT FLEXIBLE COPPER CABLE WITH ISI MARK CONFORMING TO IS
Supply, delivey and fixing of HRC - FUSES - HIGHER END
HRC - 32 Amps
HRC - 125 Amps
Supply and delivery of the following Electrical Works :consumable items at the site of work to carryout the general maintenace works
Voltmeter Digital - Three Phase Class 1-AC
Ammeter Digital - Three Phase Class 1-1A
20W 4 Feet LED Fitting with LED (Higher end)
LED OUTDOOR FITTINGS (LIGHT EMITTING DIODE) LOWER END 25W LED Street Light Fitting with LED
Supply and delivery of the following consumable items for Pump Set repairs at the site of work to carryout the general maintenace works
100mm GM Gate valve
R I Sheet
Bolts and Nuts - All sizes
125mm GI pipe
150mm GI pipe
Supply, delivery and fixing of DI D/F Gate sluice/scour valves (soft seated) resilient seated soft sealing Gate Valves(Sluice Valves) with body Bonnet of Ductile cast iron of Grade GGG 40 or equivalent grade, Wedge fully rubber lined with EPDM replaceable spindle nut without gland packing and with 3 O- Ring protection on the shaft and seals of NBR and the valves should be of Vacuum tight and 100% leak proof with face to face dimensions as per BS 5163- 89/ISI 14846-2000/DIN 3202 F4. All the valves should be with electrostatic powder coating both inside and out side with pocket less straight through body passage. All the valves are to be compatible for buried application with pressure rating PN 10/16 and with 5 years warranty.
100mm DI Gate Valve
150mm DI Gate Valve
Manufacture, Supply and Delivery of Tamper proof DI single chamber double orifice triple function (ventilating, admiting & ventilating during operation) air release valve with pressure rating PN 10/16 with body and cover made of Ductile Iron of Grade GGG 40 or GGG 50, conforming to IS 1865 with Food Grade Epoxy Powder coating (EP-P) inside and for outside of colour blue RAL 5005. All internal parts such as float, shell etc., cover bolts, made of Austenitic alloy steel of SS AISI 304/316. The float shall be made of Polytetrafluroethylene/ Austenitic alloy steel of AISI 304/316. Gaskets and seals of EPDM / Neoprene rubber for TWAD Board works anywhere in Tamil Nadu and with 5 years warranty
50mm DI Air Valve
Supply, delivey and fixing of C.I. DOUBLE AIR VALVE AS PER ISI 14845/2000 AND WITH 5 YEARS WARRANTY
50mm CI Air Valve
SUMP CLEANING
Cleaning of all storage points like sumps, elevated reservoirs of various capacities available in this scheme at a frequency of once in two months including scrapping the inner side of compartment completely, scouring / dewatering / desilting using required machineries, materials, labour and all other incidental charges, application of bleaching powder/ solution etc complete.
For 175001 to 200000 lit cap sump
Desilting light or sandysoil or silt from collection well below water level including the charges for special tools & plants and air compressor etc complete
Supply, delivery and application of disinfection dosages as per standard norms / guidelines including cost of all disinfectents (Such as bleaching powder, chlorine cylinder, silver ionization rods, sodium hypochlorite solution, common salt as applicable to this CWSS), labour charges and all incidental charges for disinfection of the water supplied from this CWSS to ensure the portable quality of disinfected water at all delivery points / tail ends, testing of water samples including additional / required / instructed dosage during the period of Flood/ Calamities etc., complete.
Supply delivery of Bleaching Powder as per Relevant IS Specification
Supply delivery of Liquid Chlorine as per Relevant IS Specification
Supply delivery of Alum as per Relevant IS Specification
COMBINED WATER SUPPLY SCHEME TO NALLUR AND 74 OTHER HABITATIONS IN VANDAVASI UNION OF TIRUVANNAMALAI DISTRICT
Operation and Maintenance of the Electro Mechanical installations, equipments, components, pipelines valves and appurtenances, water retaining structures including protecton of all schemee components from damages/ theft undertaking legal actions for such untoward incidents, preventive maintenance, disinfection and deliverance of water as per quality standards and supply of earmarked quantity of water to the beneficiaries as per Annexure .........., carrying out the O&M as per standard operating procedures, Acts and rules in force and as directed by TWAD Board Oficers and excluding cost towards attending leak, burst repair and replacement works to electro mechanical installations consumables for disinfection of water, cleaning of all water retaining structure, electricity .
Repair & Renewals and Leak & Bursts :
Attending Leaks in the PVC pipelines of this CWSS for the following items, as per the standard procedure including earthwork excavation, dewatering, removing, relaying, jointing, civil works, cost of materials and all other incidental charges, etc complete within the stipulated time limit as directed by the TWAD Board officers.
PVC 4 KSC Pipes_Minor Leak
63mm OD PVC 4 KSC pipes_Minor Leak
75mm OD PVC 4 KSC pipes_Minor Leak
90mm OD PVC 4 KSC pipes_Minor Leak
110mm OD PVC 4 KSC pipes_Minor Leak
140mm OD PVC 4 KSC pipes_Minor Leak
160mm OD PVC 4 KSC pipes_Minor Leak
PVC 4 KSC Pipes_Major Leak
63mm OD PVC 4 KSC pipes_Major Leak
75mm OD PVC 4 KSC pipes_Major Leak
90mm OD PVC 4 KSC pipes_Major Leak
110mm OD PVC 4 KSC pipes_Major Leak
140mm OD PVC 4 KSC pipes_Major Leak
160mm OD PVC 4 KSC pipes_Major Leak
Attending Leaks/Bursts in the HDPE pipelines of this CWSS for the following items, as per the standard procedure including earthwork excavation, dewatering, removing, relaying, jointing by Electro fusion/butt Joint, civil works, cost of materials and all other incidental charges, etc complete within the stipulated time limit as directed by the TWAD Board officers.
HDPE PN 6 Pipes_Minor Leaks
63mm HDPE PN 6 pipes_Minor Leak
75mm HDPE PN 6 pipes_Minor Leak
90mm HDPE PN 6 pipes_Minor Leak
140mm HDPE PN 6 pipes_Minor Leak
160mm HDPE PN 6 pipes_Minor Leak
HDPE PN 6 Pipes_Major Leaks
63mm HDPE PN 6 pipes_Major Leak
75mm HDPE PN 6 pipes_Major Leak
90mm HDPE PN 6 pipes_Major Leak
140mm HDPE PN 6 pipes_Major Leak
160mm HDPE PN 6 pipes_Major Leak
Attending leaks and bursts in GI pipes of various sizes including Supply and delivery of following G I PIPES (MEDIUM) AS PER IS 1239/PART I/2004 and Lowering GI pipes and specials in the trenches and laying to proper grade and alignment, jointing with GI Specials and as directed by the TWAD Officers
80mm GI Pipe leak above GL
100mm GI Pipe leak above GL
125mm GI Pipe leak above GL
150mm GI Pipe leak above GL
Attending joint (Collar) Leaks in the AC pipelines of this CWSS for the following items, as per the standard procedure including earthwork excavation, dewatering, removing, relaying, jointing, civil works, cost of materials and all incidental charges, etc complete within the stipulated time limit as specified in Clause 2.6.4 of General conditions of Contract
AC Pipe_Collar Leak
150mm AC_Collar Leak
250mm AC_Collar Leak
AC Pipe_Minor Leak centre crack
150mm AC Pipe_MS Cut Barrel
250mm AC Pipe_MS Cut Barrel
Attending joint Leaks and center crack in the PSC pipelines of this CWSS for the following items, as per the standard procedure including earthwork excavation, dewatering, removing, relaying, jointing, civil works, cost of materials and all incidental charges, etc complete within the stipulated time limit as specified in Clause 2.6.4 of General conditions of Contract
350mm PSC Pipe Collar Leak
350mm PSC Pipe Centre Crack MS Cut Barrel
Labour for cutting open B.T. Roads (or) Maccadam road for laying water mains - 15 cm thick (SOR VOL II P.195)
For all size Pumping mains
Road Restoration with PCC 1:2:4 using 20 mm HBGS for the Concrete Road cut Portion after the pipes are laid, joined and tested complete and as directed by TWAD Board Officers - 15 cm thick
For all size Pumping mains
MATERIALS
Supply and delivery of following sizes of HDPE PIPES - PE 100 AS PER IS 4984/2016 (Pre-Compounded Resin) inclusive of transportation charges to stockyard excluding unloading anywhere in Tamilnadu etc, complete and as directed by the TWAD Board officers. (SOR VOL II P.14)
160mm HDPE PN 6
140mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
75mm HDPE PN 6
63mm HDPE PN 6
CIVIL WORKS
Earth work excavation and depositing on bank with initial lead of 10 m and initial lift of 2m in narrow trenches for laying of pipes for water supply in the following types of soil
Hard stiff clay, stiff black cotton, hard red earth, shales, murrum gravel, stoney earth and earth mixed with small size boulders and hard gravelly soil. (SOR VOL II P.192)
160mm HDPE PN 6
140mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
75mm HDPE PN 6
63mm HDPE PN 6
Lowering HDPE pipes and specials to trench and laying to proper grade and alignment and as directed by the TWAD Officers. (SOR VOL II P.171)
160mm HDPE PN 6
140mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
75mm HDPE PN 6
63mm HDPE PN 6
Jointing HDPE Pipes and Specials by butt fusion welding / electro fusion welding joints using fusion equipment as per ISO 21307-2011 and as per IS 7634 (part-2) : 2012 including cost of hire charges for butt fusion equipment power supply arrangements etc., complete as per directed by TWAD Board Officers. (SOR VOL II P.184)
160mm HDPE PN 6
140mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
75mm HDPE PN 6
63mm HDPE PN 6
Refiling with excavated sand or other loose soil complying with standerd specification in layers of 15 cm thick well rammed and consolidated after pipes and specials are laid and tested. (SOR VOL II P.192)
160mm HDPE PN 6
140mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
75mm HDPE PN 6
63mm HDPE PN 6
Pumpsets
Carrying out the following repair works occuring during the maintenance period in the Electrical, Mechanical and Elctro-mechanical items to bring back the scheme / components into normal running conditition as per standard specification including all labour charges, cost of materials and all incidental charges within the stipulated time limit etc., complete as specified in Clause 2.8 of General conditions of Contract Part II etc as directed by TWAD Board officers
Attending the Rewinding, Repair and Renewal works in various capacity Open Well Submersible Pumpsets
Removing the Submersible pumpset by using tripod set after disconnecting the power supply cable and delivery pipe line fittings
10HP -OWS
12.50HP -OWS
7.5HP -OWS
Transporting the pumpset from Pump House to work shop.
10HP -OWS
12.50HP -OWS
7.5HP -OWS
Rewinding the submersible motor using best quality winding wire including cost of wire, Sleeve, other insulating and fibre class materials after deducting the cost of old materials.
10HP -OWS
12.50HP -OWS
7.5HP -OWS
Reconditioning the worn-out shaft and fittings, impeller and Gun Metal/ SS Bushes including cost of lath work & labour charges etc.,
10HP -OWS
12.50HP -OWS
7.5HP -OWS
Replacement of carbon type thrust bearing and pumpside Gun Metal Bush including cost of labour charges after deducting the cost of old material
10HP -OWS
12.50HP -OWS
7.5HP -OWS
Transporting charges for Submersible pumpset from work shop to Pump House after attending repair works.
10HP -OWS
12.50HP -OWS
7.5HP -OWS
Re-erection of pumpset in the Sump / Well by using tripod set and required Rubber washer and Bolt & Nuts and connecting the power supply cable and delivery pipeline arrangements testing to trial pumping.
10HP -OWS
12.50HP -OWS
7.5HP -OWS
Attending the Rewinding, Repair and Renewal works in Monoblock Pumpset
5HP_Monoblock
Removing the Monblock Centrifugal Pumpset from the Bed assembly by using contractors tools and materials after disconnecting the power supply cable and delivery pipe line fittings with required dummy plate arrangements.
Transporting the pumpset from the Pumping Station to work shop.
Removing the Burnt winding materials from the stator slots and cleaning the stator and rotor assembly by using contractor tools and materials
Reconditioning the worn-out shaft and fittings, impeller and Rope gland bush including cost of lath work & labour charges etc.,
Rewinding the Monblock Centrifugal Motor using best quality winding wire including cost of wire, Sleeve, other insulating and fibre class materials after deducting the cost of old materials.
Replacement of driven end (No: XXXX) and Non driven end (No:XXXX) Bearings suitable for Monblock Centrifugal Motor including the cost of Bearing and labour charges after deducting the cost of old materials.
Replacement of cooling fan at motor end and Terminal Board for suitable for Monblock Centrifugal Pumpset and labour charges after deducting the cost of old materials.
Transporting charges for Monblock Centrifugal Pumpset from work shop to Pump House after attending repair works.
Re-erection of pumpset in the Sump / Well by using required Rubber washer and Bolt & Nuts and connecting the power supply cable and delivery pipe line arrangements, testing and trial pumping.
7.5HP_Monoblock
Removing the Monblock Centrifugal Pumpset from the Bed assembly by using contractors tools and materials after disconnecting the power supply cable and delivery pipe line fittings with required dummy plate arrangements.
Transporting the pumpset from the Pumping Station to work shop.
Removing the Burnt winding materials from the stator slots and cleaning the stator and rotor assembly by using contractor tools and materials
Reconditioning the worn-out shaft and fittings, impeller and Rope gland bush including cost of lath work & labour charges etc.,
Rewinding the Monblock Centrifugal Motor using best quality winding wire including cost of wire, Sleeve, other insulating and fibre class materials after deducting the cost of old materials.
Replacement of driven end (No: XXXX) and Non driven end (No:XXXX) Bearings suitable for Monblock Centrifugal Motor including the cost of Bearing and labour charges after deducting the cost of old materials.
Replacement of cooling fan at motor end and Terminal Board for suitable for Monblock Centrifugal Pumpset and labour charges after deducting the cost of old materials.
Transporting charges for Monblock Centrifugal Pumpset from work shop to Pump House after attending repair works.
Re-erection of pumpset in the Sump / Well by using required Rubber washer and Bolt & Nuts and connecting the power supply cable and delivery pipe line arrangements, testing and trial pumping.
60HP-HSC_Motor
Charges for removing the motor from bed after disconnection of power supply cable, Earthing line and Coupling arrangements by using contractor tools and materials.
Transportation charges for conveying the motor from the Booster Station to Our work shop including loading and unloading charges.
Labour Charges for removing the two end side cover with fan arrangements and the damaged driven end and non driven end bearings.
Charges for removing the burnt wires from the rotor assembly and cleaning and checking the slots of rotor and labour charges for rewinding of Centrifugal Squirrel Cage Induction Motor after deducting the cost of old materials and including suppy and delivery of Class ‘F’ Insulation Super enameled Copper wire, required for rewinding and Fiber Glass wire, Fiber Glass Sleeves, Class ‘F’ insulation paper, Copper Socket and FG thread required for rewinding of Squirrel Cage Induction Motor
Labour Charges for reconditioning the worn out shaft for driven end and non driven end bearing seating, knurling, bend checking, and etc.,
Supply and delivery of Driven End and Non Driven End bearings suitable for the required Induction Motor
Labour Charges fixing the DE and NDE bearings correctly and neatly with required lubrications by contractors tools & Materials
Transportation charges for conveying the motor from work shop to Pumping Station
Charges for reassembling the motor with bed and pump coupling, alignment checking connecting power supply cable, including required bolt and Nuts and testing trial running etc.,
60HP-HSC_Pump
Charges for removing the motor from bed assembly after dismantling of Coupling arrangements and removing the pump assembly and including the provision of dummy flange arrangements by using contractor tools and materials.
Transportation charges for conveying the Pump assembly from the Pumping Station to work shop including loading and unloading charges.
Labour Charges for removing the impeller by using hydralic system, DE and NDE Bearings
Labour Charges for reconditioning the worn out shaft including welding the shaft to suit the impeller and suit the driven end and non driven end bearing seating, knurling, bend checking and etc.,
Supply, delivery and fixing of Shaft sleeves in Gun metal including machining charges and making key ways after deducting the scrap materials
Balancing of Rotor with impeller both dyanamically and Hydralically by using required dyanamic balancing machine
Supply, delivery and fixing of Gunmetal seal rings for impeller neck including machining charges after deducting the scrap materials
Supply and delivery of Driven End and Non Driven End bearings
Labour Charges fixing the DE and NDE bearings correctly and neatly with required lubrications by contractors tools & Materials
Transportation charges for conveying the Pump assembly from work shop to Pumping Station.
Charges for reassembling the Pump with Motor by using pulley and alignment checking, including required bolt and Nuts and testing trial running etc.,
SUPPLY AND DELIVERY OF SERVICE CONNECTION ACCESSORIES L.T. 1100V PVC ALUMINIUM ARMOURED UNDER GROUND CABLE WITH ISI MARK
25 Sq.mm 3.5 Core
35 Sq.mm 3.5 Core
70 Sq.mm 3.5 Core
95 Sq.mm 3.5 Core
120 Sq.mm 3.5 Core
SUPPLY AND DELIVERY OF L.T. CABLES following size sq mm 3 CORE 1.1 KV GRADE ARMOURED ALUMINIUM CONDUCTOR CROSS LINKED POLY ETHYLENE INSULATED PVC SHEATHED CABLES CONFORMING TO IS 7098 (PART I)/1988 WITH ISI MARKING
50 Sq.mm 3 Core
70 Sq.mm 3Core
SUPPLY AND DELIVERY OF PVC INSULATED AND SHEATHED following sq mm 3 CORE FLAT TYPE COPPER CABLE CONFORMING TO IS 694/1989
SUPPLY AND DELIVERY OF 150mm dia Pressure Gauge and Vaccum guage including all accessories as per specification (For Suction and Delivery to be mounted on wall on Teak Wood Board)
Supply, delivey and fixing of MOULDED CASE CIRCUIT BREAKER (MCCB) WITH THERMO MAGNETIC RELEASE - 4 Pole
Range - 63/100A
Range - 125A
Range - 160A
Range - 250A
Supply, delivey and fixing of RATE FOR MIXED DI-ELECTRIC CAPACITOR WITH TNEB TEST CERTIFICATE WITH ACCESSORIES INCLUDING BANKING CONFORMIING TO IS 2834.
Supply, delivey and fixing of Electro magnetic contactors of suitable capacity in AC Three Phase rating, conforming to IS/IEC 60947-4-1.
Supply, delivey and fixing of Overload Relays: Directly operated Bimetallic Thermal overload relay which operates in case of overload and also in case of under voltage with manual and auto reset mode.
Supply, delivey and fixing of Preventer – Single Phasing - Electric Motor protection device against single phasing. The device should protect the motor against single phasing, reverse phasing and unbalance supply. The device should be suitable for any auxillary device and have provisions for mounting in panel boards. Operate without need of any auxiliary supply.
Electric Motor protection device against dry running. The device should protect the motor against Dry running. The device should be suitable for any auxillary device and have provisions for mounting in panel boards. Operate without need of any auxiliary supply
Supply, delivey and fixing of FUSE UNITS (ANCHOR /EQUIVALENT)
63 Amps Porcelain fuse unit (500 V)
100 Amps Porcelain fuse unit (500 V)
200 Amps Porcelain fuse unit (500 V)
Supply, delivey and fixing of CHANGE OVER SWITCHES
100 Amps three phase 500 V 4 pole Change over switch
200 Amps three phase 500 V 4 pole Change over switch
250 Amps three phase 500 V 4 pole Change over switch
Supply, delivey and fixing of PVC INSULATED SINGLE CORE MULTI STRAND FIRE RETARDANT FLEXIBLE COPPER CABLE WITH ISI MARK CONFORMING TO IS
Supply, delivey and fixing of HRC - FUSES - HIGHER END
HRC - 16 Amps
HRC - 32 Amps
HRC - 63 Amps
HRC - 125 Amps
HRC - 200 Amps
HRC - 250 Amps
Supply and delivery of the following Electrical Works :consumable items at the site of work to carryout the general maintenace works
Voltmeter Digital - Three Phase Class 1-AC
Ammeter Digital - Three Phase Class 1-1A
20W 4 Feet LED Fitting with LED (Higher end)
LED OUTDOOR FITTINGS (LIGHT EMITTING DIODE) LOWER END 25W LED Street Light Fitting with LED
Supply and delivery of the following consumable items for Pump Set repairs at the site of work to carryout the general maintenace works
50mm GM Gate valve
65mm GM Gate valve
80mm GM Gate valve
R I Sheet
Bolts and Nuts - All sizes
50mm GI Pipe
65mm GI Pipe
80mm GI Pipe
100mm GI pipe
Supply, delivery and fixing of DI D/F Gate sluice/scour valves (soft seated) resilient seated soft sealing Gate Valves(Sluice Valves) with body Bonnet of Ductile cast iron of Grade GGG 40 or equivalent grade, Wedge fully rubber lined with EPDM replaceable spindle nut without gland packing and with 3 O- Ring protection on the shaft and seals of NBR and the valves should be of Vacuum tight and 100% leak proof with face to face dimensions as per BS 5163- 89/ISI 14846-2000/DIN 3202 F4. All the valves should be with electrostatic powder coating both inside and out side with pocket less straight through body passage. All the valves are to be compatible for buried application with pressure rating PN 10/16 and with 5 years warranty.
150mm DI Gate Valve
200mm DI Gate Valve
C.I. D/F REFLUX VALVE AS PER I.S. 5312/2004/ PART I/ 84 PN 1.0 WITH BYE-PASS ARRANGEMENTS WITH ISI MARKING AND WITH 5 YEARS WARRANTY
Supply, delivey and fixing of C.I. DOUBLE AIR VALVE AS PER ISI 14845/2000 AND WITH 5 YEARS WARRANTY
50mm CI Air Valve
80mm CI Air Valve
SUMP CLEANING
Cleaning of all storage points like sumps, elevated reservoirs of various capacities available in this scheme at a frequency of once in two months including scrapping the inner side of compartment completely, scouring / dewatering / desilting using required machineries, materials, labour and all other incidental charges, application of bleaching powder/ solution etc complete.
For 75001 to 100000 lit cap sump
For 100001 to 125000 lit cap sump
For 125001 to 150000 lit cap sump
For 175001 to 200000 lit cap sump
Desilting light or sandysoil or silt from collection well below water level including the charges for special tools & plants and air compressor etc complete
Bleaching powder of 34% concentration as per standard specification.
COMBINED WATER SUPPLY SCHEME TO DESUR-THELLAR AND 87 OTHER HABITATIONS IN ANAKKAVUR, PERNAMALLUR AND THELLAR UNION IN TIRUVANNAMALAI DISTRICT
Operation and Maintenance of the Electro Mechanical installations, equipments, components, pipelines valves and appurtenances, water retaining structures including protecton of all schemee components from damages/ theft undertaking legal actions for such untoward incidents, preventive maintenance, disinfection and deliverance of water as per quality standards and supply of earmarked quantity of water to the beneficiaries as per Annexure .........., carrying out the O&M as per standard operating procedures, Acts and rules in force and as directed by TWAD Board Oficers and excluding cost towards attending leak, burst repair and replacement works to electro mechanical installations consumables for disinfection of water, cleaning of all water retaining structure, electricity .
Repair & Renewals and Leak & Bursts :
Attending Leaks in the PVC pipelines of this CWSS for the following items, as per the standard procedure including earthwork excavation, dewatering, removing, relaying, jointing, civil works, cost of materials and all other incidental charges, etc complete within the stipulated time limit as directed by the TWAD Board officers.
PVC 4 KSC Pipes_Minor Leak
63mm OD PVC 4 KSC pipes_Minor Leak
75mm OD PVC 4 KSC pipes_Minor Leak
90mm OD PVC 4 KSC pipes_Minor Leak
110mm OD PVC 4 KSC pipes_Minor Leak
PVC 4 KSC Pipes_Major Leak
63mm OD PVC 4 KSC pipes_Major Leak
75mm OD PVC 4 KSC pipes_Major Leak
90mm OD PVC 4 KSC pipes_Major Leak
110mm OD PVC 4 KSC pipes_Major Leak
Attending Leaks/Bursts in the HDPE pipelines of this CWSS for the following items, as per the standard procedure including earthwork excavation, dewatering, removing, relaying, jointing by Electro fusion/butt Joint, civil works, cost of materials and all other incidental charges, etc complete within the stipulated time limit as directed by the TWAD Board officers.
HDPE PN 6 Pipes_Minor Leaks
63mm HDPE PN 6 pipes_Minor Leak
75mm HDPE PN 6 pipes_Minor Leak
125mm HDPE PN 6 pipes_Minor Leak
160mm HDPE PN 6 pipes_Minor Leak
HDPE PN 6 Pipes_Major Leaks
63mm HDPE PN 6 pipes_Major Leak
75mm HDPE PN 6 pipes_Major Leak
125mm HDPE PN 6 pipes_Major Leak
160mm HDPE PN 6 pipes_Major Leak
Attending leaks and bursts in GI pipes of various sizes including Supply and delivery of following G I PIPES (MEDIUM) AS PER IS 1239/PART I/2004 and Lowering GI pipes and specials in the trenches and laying to proper grade and alignment, jointing with GI Specials and as directed by the TWAD Officers
50mm GI Pipe leak above GL
65mm GI Pipe leak above GL
80mm GI Pipe leak above GL
100mm GI Pipe leak above GL
125mm GI Pipe leak above GL
Attending joint (Collar) Leaks in the AC pipelines of this CWSS for the following items, as per the standard procedure including earthwork excavation, dewatering, removing, relaying, jointing, civil works, cost of materials and all incidental charges, etc complete within the stipulated time limit as specified in Clause 2.6.4 of General conditions of Contract
AC Pipe_Collar Leak
150mm AC_Collar Leak
AC Pipe_Minor Leak centre crack
150mm AC Pipe_MS Cut Barrel
Attending Leaks/Bursts in the DI pipelines of this CWSS for the following items, as per the standard procedure including earthwork excavation, dewatering, removing, relaying, jointing, civil works, cost of materials and all incidental charges, etc complete within the stipulated time limit as specified in Clause 2.6.4 of General conditions of Contract
DI Pipes_Minor Leak
100mm DI pipes - Minor leak
150mm DI pipes - Minor leak
200mm DI pipes - Minor leak
250mm DI pipes - Minor leak
300mm DI pipes - Minor leak
DI Pipes_Major Leak
100mm DI pipes - Major leak
150mm DI pipes - Major leak
200mm DI pipes - Major leak
Labour for cutting open B.T. Roads (or) Maccadam road for laying water mains - 15 cm thick (SOR VOL II P.195)
For all size Pumping mains
Road Restoration with PCC 1:2:4 using 20 mm HBGS for the Concrete Road cut Portion after the pipes are laid, joined and tested complete and as directed by TWAD Board Officers - 15 cm thick
For all size Pumping mains
MATERIALS
Supply and delivery of following sizes of HDPE PIPES - PE 100 AS PER IS 4984/2016 (Pre-Compounded Resin) inclusive of transportation charges to stockyard excluding unloading anywhere in Tamilnadu etc, complete and as directed by the TWAD Board officers. (SOR VOL II P.14)
160mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
75mm HDPE PN 6
63mm HDPE PN 6
CIVIL WORKS
Earth work excavation and depositing on bank with initial lead of 10 m and initial lift of 2m in narrow trenches for laying of pipes for water supply in the following types of soil
Hard stiff clay, stiff black cotton, hard red earth, shales, murrum gravel, stoney earth and earth mixed with small size boulders and hard gravelly soil. (SOR VOL II P.192)
160mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
75mm HDPE PN 6
63mm HDPE PN 6
Lowering HDPE pipes and specials to trench and laying to proper grade and alignment and as directed by the TWAD Officers. (SOR VOL II P.171)
160mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
75mm HDPE PN 6
63mm HDPE PN 6
Jointing HDPE Pipes and Specials by butt fusion welding / electro fusion welding joints using fusion equipment as per ISO 21307-2011 and as per IS 7634 (part-2) : 2012 including cost of hire charges for butt fusion equipment power supply arrangements etc., complete as per directed by TWAD Board Officers. (SOR VOL II P.184)
160mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
75mm HDPE PN 6
63mm HDPE PN 6
Refiling with excavated sand or other loose soil complying with standerd specification in layers of 15 cm thick well rammed and consolidated after pipes and specials are laid and tested. (SOR VOL II P.192)
160mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
75mm HDPE PN 6
63mm HDPE PN 6
Pumpsets
Carrying out the following repair works occuring during the maintenance period in the Electrical, Mechanical and Elctro-mechanical items to bring back the scheme / components into normal running conditition as per standard specification including all labour charges, cost of materials and all incidental charges within the stipulated time limit etc., complete as specified in Clause 2.8 of General conditions of Contract Part II etc as directed by TWAD Board officers
Attending the Rewinding, Repair and Renewal works in various capacity Open Well Submersible Pumpsets
Removing the Submersible pumpset by using tripod set after disconnecting the power supply cable and delivery pipe line fittings
3HP -OWS
5HP -OWS
7.5HP -OWS
10HP -OWS
15HP -OWS
30HP -OWS
Transporting the pumpset from Pump House to work shop.
3HP -OWS
5HP -OWS
7.5HP -OWS
10HP -OWS
15HP -OWS
30HP -OWS
Rewinding the submersible motor using best quality winding wire including cost of wire, Sleeve, other insulating and fibre class materials after deducting the cost of old materials.
3HP -OWS
5HP -OWS
7.5HP -OWS
10HP -OWS
15HP -OWS
30HP -OWS
Reconditioning the worn-out shaft and fittings, impeller and Gun Metal/ SS Bushes including cost of lath work & labour charges etc.,
3HP -OWS
5HP -OWS
7.5HP -OWS
10HP -OWS
15HP -OWS
30HP -OWS
Replacement of carbon type thrust bearing and pumpside Gun Metal Bush including cost of labour charges after deducting the cost of old material
3HP -OWS
5HP -OWS
7.5HP -OWS
10HP -OWS
15HP -OWS
30HP -OWS
Transporting charges for Submersible pumpset from work shop to Pump House after attending repair works.
3HP -OWS
5HP -OWS
7.5HP -OWS
10HP -OWS
15HP -OWS
30HP -OWS
Re-erection of pumpset in the Sump / Well by using tripod set and required Rubber washer and Bolt & Nuts and connecting the power supply cable and delivery pipeline arrangements testing to trial pumping.
3HP -OWS
5HP -OWS
7.5HP -OWS
10HP -OWS
15HP -OWS
30HP -OWS
75HP -HSC_Motor
Charges for removing the motor from bed after disconnection of power supply cable, Earthing line and Coupling arrangements by using contractor tools and materials.
Transportation charges for conveying the motor from the Booster Station to Our work shop including loading and unloading charges.
Labour Charges for removing the two end side cover with fan arrangements and the damaged driven end and non driven end bearings.
Charges for removing the burnt wires from the rotor assembly and cleaning and checking the slots of rotor and labour charges for rewinding of Centrifugal Squirrel Cage Induction Motor after deducting the cost of old materials and including suppy and delivery of Class ‘F’ Insulation Super enameled Copper wire, required for rewinding and Fiber Glass wire, Fiber Glass Sleeves, Class ‘F’ insulation paper, Copper Socket and FG thread required for rewinding of Squirrel Cage Induction Motor
Labour Charges for reconditioning the worn out shaft for driven end and non driven end bearing seating, knurling, bend checking, and etc.,
Supply and delivery of Driven End and Non Driven End bearings suitable for the required Induction Motor
Labour Charges fixing the DE and NDE bearings correctly and neatly with required lubrications by contractors tools & Materials
Transportation charges for conveying the motor from work shop to Pumping Station
Charges for reassembling the motor with bed and pump coupling, alignment checking connecting power supply cable, including required bolt and Nuts and testing trial running etc.,
Attending the Repair and Reconditioning works of various capacities of Horizontal Split Casing Pumpsets
75HP -HSC_Pump
Charges for removing the motor from bed assembly after dismantling of Coupling arrangements and removing the pump assembly and including the provision of dummy flange arrangements by using contractor tools and materials.
Transportation charges for conveying the Pump assembly from the Pumping Station to work shop including loading and unloading charges.
Labour Charges for removing the impeller by using hydralic system, DE and NDE Bearings
Labour Charges for reconditioning the worn out shaft including welding the shaft to suit the impeller and suit the driven end and non driven end bearing seating, knurling, bend checking and etc.,
Supply, delivery and fixing of Shaft sleeves in Gun metal including machining charges and making key ways after deducting the scrap materials
Balancing of Rotor with impeller both dyanamically and Hydralically by using required dyanamic balancing machine
Supply, delivery and fixing of Gunmetal seal rings for impeller neck including machining charges after deducting the scrap materials
Supply and delivery of Driven End and Non Driven End bearings
Labour Charges fixing the DE and NDE bearings correctly and neatly with required lubrications by contractors tools & Materials
Transportation charges for conveying the Pump assembly from work shop to Pumping Station.
Charges for reassembling the Pump with Motor by using pulley and alignment checking, including required bolt and Nuts and testing trial running etc.,
SUPPLY AND DELIVERY OF SERVICE CONNECTION ACCESSORIES L.T. 1100V PVC ALUMINIUM ARMOURED UNDER GROUND CABLE WITH ISI MARK
70 Sq.mm 3.5 Core
95 Sq.mm 3.5 Core
120 Sq.mm 3.5 Core
SUPPLY AND DELIVERY OF L.T. CABLES following size sq mm 3 CORE 1.1 KV GRADE ARMOURED ALUMINIUM CONDUCTOR CROSS LINKED POLY ETHYLENE INSULATED PVC SHEATHED CABLES CONFORMING TO IS 7098 (PART I)/1988 WITH ISI MARKING
25 Sq.mm 3 Core
50 Sq.mm 3 Core
95 Sq.mm 3 Core
SUPPLY AND DELIVERY OF PVC INSULATED AND SHEATHED following sq mm 3 CORE FLAT TYPE COPPER CABLE CONFORMING TO IS 694/1989
SUPPLY AND DELIVERY OF 150mm dia Pressure Gauge and Vaccum guage including all accessories as per specification (For Suction and Delivery to be mounted on wall on Teak Wood Board)
Supply, delivey and fixing of MOULDED CASE CIRCUIT BREAKER (MCCB) WITH THERMO MAGNETIC RELEASE - 4 Pole
Range - 63/100A
Range - 125A
Range - 160A
Supply, delivey and fixing of RATE FOR MIXED DI-ELECTRIC CAPACITOR WITH TNEB TEST CERTIFICATE WITH ACCESSORIES INCLUDING BANKING CONFORMIING TO IS 2834.
Supply, delivey and fixing of Electro magnetic contactors of suitable capacity in AC Three Phase rating, conforming to IS/IEC 60947-4-1.
Supply, delivey and fixing of Overload Relays: Directly operated Bimetallic Thermal overload relay which operates in case of overload and also in case of under voltage with manual and auto reset mode.
Supply, delivey and fixing of Preventer – Single Phasing - Electric Motor protection device against single phasing. The device should protect the motor against single phasing, reverse phasing and unbalance supply. The device should be suitable for any auxillary device and have provisions for mounting in panel boards. Operate without need of any auxiliary supply.
Electric Motor protection device against dry running. The device should protect the motor against Dry running. The device should be suitable for any auxillary device and have provisions for mounting in panel boards. Operate without need of any auxiliary supply
63 Amps Porcelain fuse unit (500 V)
100 Amps Porcelain fuse unit (500 V)
200 Amps Porcelain fuse unit (500 V)
100 Amps three phase 500 V 4 pole Change over switch
200 Amps three phase 500 V 4 pole Change over switch
250 Amps three phase 500 V 4 pole Change over switch
Supply, delivey and fixing of HRC - FUSES - HIGHER END
HRC - 16 Amps
HRC - 32 Amps
HRC - 63 Amps
HRC - 125 Amps
HRC - 200 Amps
HRC - 250 Amps
Supply and delivery of the following Electrical Works :consumable items at the site of work to carryout the general maintenace works
Voltmeter Digital - Three Phase Class 1-AC
Ammeter Digital - Three Phase Class 1-1A
20W 4 Feet LED Fitting with LED (Higher end)
LED OUTDOOR FITTINGS (LIGHT EMITTING DIODE) LOWER END 25W LED Street Light Fitting with LED
Supply and delivery of the following consumable items for Pump Set repairs at the site of work to carryout the general maintenace works
80mm GM Gate valve
100mm GM Gate valve
80mm GI Pipe
100mm GI pipe
Supply, delivery and fixing of DI D/F Gate sluice/scour valves (soft seated) resilient seated soft sealing Gate Valves(Sluice Valves) with body Bonnet of Ductile cast iron of Grade GGG 40 or equivalent grade, Wedge fully rubber lined with EPDM replaceable spindle nut without gland packing and with 3 O- Ring protection on the shaft and seals of NBR and the valves should be of Vacuum tight and 100% leak proof with face to face dimensions as per BS 5163- 89/ISI 14846-2000/DIN 3202 F4. All the valves should be with electrostatic powder coating both inside and out side with pocket less straight through body passage. All the valves are to be compatible for buried application with pressure rating PN 10/16 and with 5 years warranty.
200mm DI Gate Valve
Manufacture, Supply and Delivery of Tamper proof DI single chamber double orifice triple function (ventilating, admiting & ventilating during operation) air release valve with pressure rating PN 10/16 with body and cover made of Ductile Iron of Grade GGG 40 or GGG 50, conforming to IS 1865 with Food Grade Epoxy Powder coating (EP-P) inside and for outside of colour blue RAL 5005. All internal parts such as float, shell etc., cover bolts, made of Austenitic alloy steel of SS AISI 304/316. The float shall be made of Polytetrafluroethylene/ Austenitic alloy steel of AISI 304/316. Gaskets and seals of EPDM / Neoprene rubber for TWAD Board works anywhere in Tamil Nadu and with 5 years warranty
Supply, delivey and fixing of C.I. DOUBLE AIR VALVE AS PER ISI 14845/2000 AND WITH 5 YEARS WARRANTY
50mm CI Air Valve
SUMP CLEANING
Cleaning of all storage points like sumps, elevated reservoirs of various capacities available in this scheme at a frequency of once in two months including scrapping the inner side of compartment completely, scouring / dewatering / desilting using required machineries, materials, labour and all other incidental charges, application of bleaching powder/ solution etc complete.
For 45001 to 60000 lit cap sump
For 175001 to 200000 lit cap sump
For 200001 to 300000 lit cap sump
Desilting light or sandysoil or silt from collection well below water level including the charges for special tools & plants and air compressor etc complete
Bleaching powder of 34% concentration as per standard specification.
COMBINED WATER SUPPLY SCHEME TO KEELKODUNGALORE AND 76 OTHER HABITATIONS IN VANDAVASI UNION OF TIRUVANNAMALAI DISTRICT
Operation and Maintenance of the Electro Mechanical installations, equipments, components, pipelines valves and appurtenances, water retaining structures including protecton of all schemee components from damages/ theft undertaking legal actions for such untoward incidents, preventive maintenance, disinfection and deliverance of water as per quality standards and supply of earmarked quantity of water to the beneficiaries as per Annexure .........., carrying out the O&M as per standard operating procedures, Acts and rules in force and as directed by TWAD Board Oficers and excluding cost towards attending leak, burst repair and replacement works to electro mechanical installations consumables for disinfection of water, cleaning of all water retaining structure, electricity .
Repair & Renewals and Leak & Bursts :
Attending Leaks in the PVC pipelines of this CWSS for the following items, as per the standard procedure including earthwork excavation, dewatering, removing, relaying, jointing, civil works, cost of materials and all other incidental charges, etc complete within the stipulated time limit as directed by the TWAD Board officers.
PVC 4 KSC Pipes_Minor Leak
63mm OD PVC 4 KSC pipes_Minor Leak
75mm OD PVC 4 KSC pipes_Minor Leak
90mm OD PVC 4 KSC pipes_Minor Leak
110mm OD PVC 4 KSC pipes_Minor Leak
140mm OD PVC 4 KSC pipes_Minor Leak
160mm OD PVC 4 KSC pipes_Minor Leak
PVC 4 KSC Pipes_Major Leak
63mm OD PVC 4 KSC pipes_Major Leak
75mm OD PVC 4 KSC pipes_Major Leak
90mm OD PVC 4 KSC pipes_Major Leak
110mm OD PVC 4 KSC pipes_Major Leak
140mm OD PVC 4 KSC pipes_Major Leak
160mm OD PVC 4 KSC pipes_Major Leak
Attending Leaks/Bursts in the HDPE pipelines of this CWSS for the following items, as per the standard procedure including earthwork excavation, dewatering, removing, relaying, jointing by Electro fusion/butt Joint, civil works, cost of materials and all other incidental charges, etc complete within the stipulated time limit as directed by the TWAD Board officers.
HDPE PN 6 Pipes_Minor Leaks
63mm HDPE PN 6 pipes_Minor Leak
75mm HDPE PN 6 pipes_Minor Leak
90mm HDPE PN 6 pipes_Minor Leak
110mm HDPE PN 6 pipes_Minor Leak
140mm HDPE PN 6 pipes_Minor Leak
200mm HDPE PN 6 pipes_Minor Leak
HDPE PN 6 Pipes_Major Leaks
63mm HDPE PN 6 pipes_Major Leak
75mm HDPE PN 6 pipes_Major Leak
90mm HDPE PN 6 pipes_Major Leak
110mm HDPE PN 6 pipes_Major Leak
140mm HDPE PN 6 pipes_Major Leak
200mm HDPE PN 6 pipes_Major Leak
Attending leaks and bursts in GI pipes of various sizes including Supply and delivery of following G I PIPES (MEDIUM) AS PER IS 1239/PART I/2004 and Lowering GI pipes and specials in the trenches and laying to proper grade and alignment, jointing with GI Specials and as directed by the TWAD Officers
80mm GI Pipe leak above GL
100mm GI Pipe leak above GL
125mm GI Pipe leak above GL
150mm GI Pipe leak above GL
Attending joint (Collar) Leaks in the AC pipelines of this CWSS for the following items, as per the standard procedure including earthwork excavation, dewatering, removing, relaying, jointing, civil works, cost of materials and all incidental charges, etc complete within the stipulated time limit as specified in Clause 2.6.4 of General conditions of Contract
AC Pipe_Collar Leak
200mm AC_Collar Leak
AC Pipe_Minor Leak centre crack
200mm AC Pipe_MS Cut Barrel
Labour for cutting open B.T. Roads (or) Maccadam road for laying water mains - 15 cm thick (SOR VOL II P.195)
For all size Pumping mains
Road Restoration with PCC 1:2:4 using 20 mm HBGS for the Concrete Road cut Portion after the pipes are laid, joined and tested complete and as directed by TWAD Board Officers - 15 cm thick
For all size Pumping mains
MATERIALS
Supply and delivery of following sizes of HDPE PIPES - PE 100 AS PER IS 4984/2016 (Pre-Compounded Resin) inclusive of transportation charges to stockyard excluding unloading anywhere in Tamilnadu etc, complete and as directed by the TWAD Board officers. (SOR VOL II P.14)
200mm HDPE PN 6
160mm HDPE PN 6
140mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
75mm HDPE PN 6
63mm HDPE PN 6
CIVIL WORKS
Earth work excavation and depositing on bank with initial lead of 10 m and initial lift of 2m in narrow trenches for laying of pipes for water supply in the following types of soil
Hard stiff clay, stiff black cotton, hard red earth, shales, murrum gravel, stoney earth and earth mixed with small size boulders and hard gravelly soil. (SOR VOL II P.192)
200mm HDPE PN 6
160mm HDPE PN 6
140mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
75mm HDPE PN 6
63mm HDPE PN 6
Lowering HDPE pipes and specials to trench and laying to proper grade and alignment and as directed by the TWAD Officers. (SOR VOL II P.171)
200mm HDPE PN 6
160mm HDPE PN 6
140mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
75mm HDPE PN 6
63mm HDPE PN 6
Jointing HDPE Pipes and Specials by butt fusion welding / electro fusion welding joints using fusion equipment as per ISO 21307-2011 and as per IS 7634 (part-2) : 2012 including cost of hire charges for butt fusion equipment power supply arrangements etc., complete as per directed by TWAD Board Officers. (SOR VOL II P.184)
200mm HDPE PN 6
160mm HDPE PN 6
140mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
75mm HDPE PN 6
63mm HDPE PN 6
Refiling with excavated sand or other loose soil complying with standerd specification in layers of 15 cm thick well rammed and consolidated after pipes and specials are laid and tested. (SOR VOL II P.192)
200mm HDPE PN 6
160mm HDPE PN 6
140mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
75mm HDPE PN 6
63mm HDPE PN 6
Pumpsets
Carrying out the following repair works occuring during the maintenance period in the Electrical, Mechanical and Elctro-mechanical items to bring back the scheme / components into normal running conditition as per standard specification including all labour charges, cost of materials and all incidental charges within the stipulated time limit etc., complete as specified in Clause 2.8 of General conditions of Contract Part II etc as directed by TWAD Board officers
Attending the Rewinding, Repair and Renewal works in various capacity Open Well Submersible Pumpsets
Removing the Submersible pumpset by using tripod set after disconnecting the power supply cable and delivery pipe line fittings
2HP -OWS
3HP -OWS
5HP -OWS
10HP -OWS
12.50HP -OWS
Transporting the pumpset from Pump House to work shop.
2HP -OWS
3HP -OWS
5HP -OWS
10HP -OWS
12.50HP -OWS
Rewinding the submersible motor using best quality winding wire including cost of wire, Sleeve, other insulating and fibre class materials after deducting the cost of old materials.
2HP -OWS
3HP -OWS
5HP -OWS
10HP -OWS
12.50HP -OWS
Reconditioning the worn-out shaft and fittings, impeller and Gun Metal/ SS Bushes including cost of lath work & labour charges etc.,
2HP -OWS
3HP -OWS
5HP -OWS
10HP -OWS
12.50HP -OWS
Replacement of carbon type thrust bearing and pumpside Gun Metal Bush including cost of labour charges after deducting the cost of old material
2HP -OWS
3HP -OWS
5HP -OWS
10HP -OWS
12.50HP -OWS
Transporting charges for Submersible pumpset from work shop to Pump House after attending repair works.
2HP -OWS
3HP -OWS
5HP -OWS
10HP -OWS
12.50HP -OWS
Re-erection of pumpset in the Sump / Well by using tripod set and required Rubber washer and Bolt & Nuts and connecting the power supply cable and delivery pipeline arrangements testing to trial pumping.
2HP -OWS
3HP -OWS
5HP -OWS
10HP -OWS
12.50HP -OWS
SUPPLY AND DELIVERY OF SERVICE CONNECTION ACCESSORIES L.T. 1100V PVC ALUMINIUM ARMOURED UNDER GROUND CABLE WITH ISI MARK
25 Sq.mm 3.5 Core
35 Sq.mm 3.5 Core
50 Sq.mm 3.5 Core
SUPPLY AND DELIVERY OF L.T. CABLES following size sq mm 3 CORE 1.1 KV GRADE ARMOURED ALUMINIUM CONDUCTOR CROSS LINKED POLY ETHYLENE INSULATED PVC SHEATHED CABLES CONFORMING TO IS 7098 (PART I)/1988 WITH ISI MARKING
50 Sq.mm 3 Core
70 Sq.mm 3Core
SUPPLY AND DELIVERY OF PVC INSULATED AND SHEATHED following sq mm 3 CORE FLAT TYPE COPPER CABLE CONFORMING TO IS 694/1989
SUPPLY AND DELIVERY OF 150mm dia Pressure Gauge and Vaccum guage including all accessories as per specification (For Suction and Delivery to be mounted on wall on Teak Wood Board)
Supply, delivey and fixing of MOULDED CASE CIRCUIT BREAKER (MCCB) WITH THERMO MAGNETIC RELEASE - 4 Pole
Range - 63/100A
Supply, delivey and fixing of RATE FOR MIXED DI-ELECTRIC CAPACITOR WITH TNEB TEST CERTIFICATE WITH ACCESSORIES INCLUDING BANKING CONFORMIING TO IS 2834.
Supply, delivey and fixing of Electro magnetic contactors of suitable capacity in AC Three Phase rating, conforming to IS/IEC 60947-4-1.
Supply, delivey and fixing of Overload Relays: Directly operated Bimetallic Thermal overload relay which operates in case of overload and also in case of under voltage with manual and auto reset mode.
Supply, delivey and fixing of Preventer – Single Phasing - Electric Motor protection device against single phasing. The device should protect the motor against single phasing, reverse phasing and unbalance supply. The device should be suitable for any auxillary device and have provisions for mounting in panel boards. Operate without need of any auxiliary supply.
Electric Motor protection device against dry running. The device should protect the motor against Dry running. The device should be suitable for any auxillary device and have provisions for mounting in panel boards. Operate without need of any auxiliary supply
Supply, delivey and fixing of FUSE UNITS (ANCHOR /EQUIVALENT)
63 Amps Porcelain fuse unit (500 V)
100 Amps Porcelain fuse unit (500 V)
200 Amps Porcelain fuse unit (500 V)
Supply, delivey and fixing of CHANGE OVER SWITCHES
32 Amps three phase 500 V 4 pole Change over switch
63 Amps three phase 500 V 4 pole Change over switch
100 Amps three phase 500 V 4 pole Change over switch
Supply, delivey and fixing of PVC INSULATED SINGLE CORE MULTI STRAND FIRE RETARDANT FLEXIBLE COPPER CABLE WITH ISI MARK CONFORMING TO IS
Supply, delivey and fixing of HRC - FUSES - HIGHER END
HRC - 16 Amps
HRC - 32 Amps
HRC - 63 Amps
Supply and delivery of the following Electrical Works :consumable items at the site of work to carryout the general maintenace works
Voltmeter Digital - Three Phase Class 1-AC
Ammeter Digital - Three Phase Class 1-1A
20W 4 Feet LED Fitting with LED (Higher end)
LED OUTDOOR FITTINGS (LIGHT EMITTING DIODE) LOWER END 25W LED Street Light Fitting with LED
Supply and delivery of the following consumable items for Pump Set repairs at the site of work to carryout the general maintenace works
50mm GM Gate valve
80mm GM Gate valve
R I Sheet
Bolts and Nuts - All sizes
50mm GI Pipe
80mm GI Pipe
100mm GI pipe
Supply, delivery and fixing of DI D/F Gate sluice/scour valves (soft seated) resilient seated soft sealing Gate Valves(Sluice Valves) with body Bonnet of Ductile cast iron of Grade GGG 40 or equivalent grade, Wedge fully rubber lined with EPDM replaceable spindle nut without gland packing and with 3 O- Ring protection on the shaft and seals of NBR and the valves should be of Vacuum tight and 100% leak proof with face to face dimensions as per BS 5163- 89/ISI 14846-2000/DIN 3202 F4. All the valves should be with electrostatic powder coating both inside and out side with pocket less straight through body passage. All the valves are to be compatible for buried application with pressure rating PN 10/16 and with 5 years warranty.
150mm DI Gate Valve
Supply, delivey and fixing of C.I. DOUBLE AIR VALVE AS PER ISI 14845/2000 AND WITH 5 YEARS WARRANTY
50mm CI Air Valve
SUMP CLEANING
Cleaning of all storage points like sumps, elevated reservoirs of various capacities available in this scheme at a frequency of once in two months including scrapping the inner side of compartment completely, scouring / dewatering / desilting using required machineries, materials, labour and all other incidental charges, application of bleaching powder/ solution etc complete.
For 45001 to 60000 lit cap sump
For 100001 to 125000 lit cap sump
For 125001 to 150000 lit cap sump
For 150001 to 175000 lit cap sump
Desilting light or sandysoil or silt from collection well below water level including the charges for special tools & plants and air compressor etc complete
Bleaching powder of 34% concentration as per standard specification.
COMBINED WATER SUPPLY SCHEME TO ATHI AND 37 OTHER HABITATIONS IN ANAKKAVUR UNION OF TIRUVANNAMALAI DISTRICT
Operation and Maintenance of the Electro Mechanical installations, equipments, components, pipelines valves and appurtenances, water retaining structures including protecton of all schemee components from damages/ theft undertaking legal actions for such untoward incidents, preventive maintenance, disinfection and deliverance of water as per quality standards and supply of earmarked quantity of water to the beneficiaries as per Annexure .........., carrying out the O&M as per standard operating procedures, Acts and rules in force and as directed by TWAD Board Oficers and excluding cost towards attending leak, burst repair and replacement works to electro mechanical installations consumables for disinfection of water, cleaning of all water retaining structure, electricity .
Repair & Renewals and Leak & Bursts :
Attending Leaks in the PVC pipelines of this CWSS for the following items, as per the standard procedure including earthwork excavation, dewatering, removing, relaying, jointing, civil works, cost of materials and all other incidental charges, etc complete within the stipulated time limit as directed by the TWAD Board officers.
PVC 4 KSC Pipes_Minor Leak
63mm OD PVC 4 KSC pipes_Minor Leak
90mm OD PVC 4 KSC pipes_Minor Leak
110mm OD PVC 4 KSC pipes_Minor Leak
140mm OD PVC 4 KSC pipes_Minor Leak
PVC 4 KSC Pipes_Major Leak
63mm OD PVC 4 KSC pipes_Major Leak
90mm OD PVC 4 KSC pipes_Major Leak
110mm OD PVC 4 KSC pipes_Major Leak
140mm OD PVC 4 KSC pipes_Major Leak
Attending Leaks/Bursts in the HDPE pipelines of this CWSS for the following items, as per the standard procedure including earthwork excavation, dewatering, removing, relaying, jointing by Electro fusion/butt Joint, civil works, cost of materials and all other incidental charges, etc complete within the stipulated time limit as directed by the TWAD Board officers.
HDPE PN 6 Pipes_Minor Leaks
63mm HDPE PN 6 pipes_Minor Leak
90mm HDPE PN 6 pipes_Minor Leak
110mm HDPE PN 6 pipes_Minor Leak
125mm HDPE PN 6 pipes_Minor Leak
200mm HDPE PN 6 pipes_Minor Leak
HDPE PN 6 Pipes_Major Leaks
63mm HDPE PN 6 pipes_Major Leak
90mm HDPE PN 6 pipes_Major Leak
110mm HDPE PN 6 pipes_Major Leak
125mm HDPE PN 6 pipes_Major Leak
200mm HDPE PN 6 pipes_Major Leak
Attending leaks and bursts in GI pipes of various sizes including Supply and delivery of following G I PIPES (MEDIUM) AS PER IS 1239/PART I/2004 and Lowering GI pipes and specials in the trenches and laying to proper grade and alignment, jointing with GI Specials and as directed by the TWAD Officers
50mm GI Pipe leak above GL
65mm GI Pipe leak above GL
80mm GI Pipe leak above GL
Attending joint (Collar) Leaks in the AC pipelines of this CWSS for the following items, as per the standard procedure including earthwork excavation, dewatering, removing, relaying, jointing, civil works, cost of materials and all incidental charges, etc complete within the stipulated time limit as specified in Clause 2.6.4 of General conditions of Contract
AC Pipe_Collar Leak
150mm AC_Collar Leak
200mm AC_Collar Leak
AC Pipe_Minor Leak centre crack
150mm AC Pipe_MS Cut Barrel
200mm AC Pipe_MS Cut Barrel
Attending Leaks/Bursts in the DI pipelines of this CWSS for the following items, as per the standard procedure including earthwork excavation, dewatering, removing, relaying, jointing, civil works, cost of materials and all incidental charges, etc complete within the stipulated time limit as specified in Clause 2.6.4 of General conditions of Contract
DI Pipes_Minor Leak
150mm DI pipes - Minor leak
DI Pipes_Major Leak
150mm DI pipes - Major leak
Labour for cutting open B.T. Roads (or) Maccadam road for laying water mains - 15 cm thick (SOR VOL II P.195)
For all size Pumping mains
Road Restoration with PCC 1:2:4 using 20 mm HBGS for the Concrete Road cut Portion after the pipes are laid, joined and tested complete and as directed by TWAD Board Officers - 15 cm thick
For all size Pumping mains
MATERIALS
Supply and delivery of following sizes of HDPE PIPES - PE 100 AS PER IS 4984/2016 (Pre-Compounded Resin) inclusive of transportation charges to stockyard excluding unloading anywhere in Tamilnadu etc, complete and as directed by the TWAD Board officers. (SOR VOL II P.14)
200mm HDPE PN 6
160mm HDPE PN 6
140mm HDPE PN 6
125mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
63mm HDPE PN 6
CIVIL WORKS
Earth work excavation and depositing on bank with initial lead of 10 m and initial lift of 2m in narrow trenches for laying of pipes for water supply in the following types of soil
Hard stiff clay, stiff black cotton, hard red earth, shales, murrum gravel, stoney earth and earth mixed with small size boulders and hard gravelly soil. (SOR VOL II P.192)
200mm HDPE PN 6
160mm HDPE PN 6
140mm HDPE PN 6
125mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
63mm HDPE PN 6
Lowering HDPE pipes and specials to trench and laying to proper grade and alignment and as directed by the TWAD Officers. (SOR VOL II P.171)
200mm HDPE PN 6
160mm HDPE PN 6
140mm HDPE PN 6
125mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
63mm HDPE PN 6
Jointing HDPE Pipes and Specials by butt fusion welding / electro fusion welding joints using fusion equipment as per ISO 21307-2011 and as per IS 7634 (part-2) : 2012 including cost of hire charges for butt fusion equipment power supply arrangements etc., complete as per directed by TWAD Board Officers. (SOR VOL II P.184)
200mm HDPE PN 6
160mm HDPE PN 6
140mm HDPE PN 6
125mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
63mm HDPE PN 6
Refiling with excavated sand or other loose soil complying with standerd specification in layers of 15 cm thick well rammed and consolidated after pipes and specials are laid and tested. (SOR VOL II P.192)
200mm HDPE PN 6
160mm HDPE PN 6
140mm HDPE PN 6
125mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
63mm HDPE PN 6
Pumpsets
Carrying out the following repair works occuring during the maintenance period in the Electrical, Mechanical and Elctro-mechanical items to bring back the scheme / components into normal running conditition as per standard specification including all labour charges, cost of materials and all incidental charges within the stipulated time limit etc., complete as specified in Clause 2.8 of General conditions of Contract Part II etc as directed by TWAD Board officers
Attending the Rewinding, Repair and Renewal works in various capacity Open Well Submersible Pumpsets
Removing the Submersible pumpset by using tripod set after disconnecting the power supply cable and delivery pipe line fittings
3HP -OWS
7.5HP -OWS
10 HP -OWS
12.50HP -OWS
Transporting the pumpset from Pump House to work shop.
3HP -OWS
7.5HP -OWS
10 HP -OWS
12.50HP -OWS
Rewinding the submersible motor using best quality winding wire including cost of wire, Sleeve, other insulating and fibre class materials after deducting the cost of old materials.
3HP -OWS
7.5HP -OWS
10 HP -OWS
12.50HP -OWS
Reconditioning the worn-out shaft and fittings, impeller and Gun Metal/ SS Bushes including cost of lath work & labour charges etc.,
3HP -OWS
7.5HP -OWS
10 HP -OWS
12.50HP -OWS
Replacement of carbon type thrust bearing and pumpside Gun Metal Bush including cost of labour charges after deducting the cost of old material
3HP -OWS
7.5HP -OWS
10 HP -OWS
12.50HP -OWS
Transporting charges for Submersible pumpset from work shop to Pump House after attending repair works.
3HP -OWS
7.5HP -OWS
10 HP -OWS
12.50HP -OWS
Re-erection of pumpset in the Sump / Well by using tripod set and required Rubber washer and Bolt & Nuts and connecting the power supply cable and delivery pipeline arrangements testing to trial pumping.
3HP -OWS
7.5HP -OWS
10 HP -OWS
12.50HP -OWS
Attending the Rewinding, Repair and Renewal works in Monoblock Pumpset
2HP_Monoblock
Removing the Monblock Centrifugal Pumpset from the Bed assembly by using contractors tools and materials after disconnecting the power supply cable and delivery pipe line fittings with required dummy plate arrangements.
Transporting the pumpset from the Pumping Station to work shop.
Removing the Burnt winding materials from the stator slots and cleaning the stator and rotor assembly by using contractor tools and materials
Reconditioning the worn-out shaft and fittings, impeller and Rope gland bush including cost of lath work & labour charges etc.,
Rewinding the Monblock Centrifugal Motor using best quality winding wire including cost of wire, Sleeve, other insulating and fibre class materials after deducting the cost of old materials.
Replacement of driven end (No: XXXX) and Non driven end (No:XXXX) Bearings suitable for Monblock Centrifugal Motor including the cost of Bearing and labour charges after deducting the cost of old materials.
Replacement of cooling fan at motor end and Terminal Board for suitable for Monblock Centrifugal Pumpset and labour charges after deducting the cost of old materials.
Transporting charges for Monblock Centrifugal Pumpset from work shop to Pump House after attending repair works.
Re-erection of pumpset in the Sump / Well by using required Rubber washer and Bolt & Nuts and connecting the power supply cable and delivery pipe line arrangements, testing and trial pumping.
3HP_Monoblock
Removing the Monblock Centrifugal Pumpset from the Bed assembly by using contractors tools and materials after disconnecting the power supply cable and delivery pipe line fittings with required dummy plate arrangements.
Transporting the pumpset from the Pumping Station to work shop.
Removing the Burnt winding materials from the stator slots and cleaning the stator and rotor assembly by using contractor tools and materials
Reconditioning the worn-out shaft and fittings, impeller and Rope gland bush including cost of lath work & labour charges etc.,
Rewinding the Monblock Centrifugal Motor using best quality winding wire including cost of wire, Sleeve, other insulating and fibre class materials after deducting the cost of old materials.
Replacement of driven end (No: XXXX) and Non driven end (No:XXXX) Bearings suitable for Monblock Centrifugal Motor including the cost of Bearing and labour charges after deducting the cost of old materials.
Replacement of cooling fan at motor end and Terminal Board for suitable for Monblock Centrifugal Pumpset and labour charges after deducting the cost of old materials.
Transporting charges for Monblock Centrifugal Pumpset from work shop to Pump House after attending repair works.
Re-erection of pumpset in the Sump / Well by using required Rubber washer and Bolt & Nuts and connecting the power supply cable and delivery pipe line arrangements, testing and trial pumping.
12.5HP_Monoblock
Removing the Monblock Centrifugal Pumpset from the Bed assembly by using contractors tools and materials after disconnecting the power supply cable and delivery pipe line fittings with required dummy plate arrangements.
Transporting the pumpset from the Pumping Station to work shop.
Removing the Burnt winding materials from the stator slots and cleaning the stator and rotor assembly by using contractor tools and materials
Reconditioning the worn-out shaft and fittings, impeller and Rope gland bush including cost of lath work & labour charges etc.,
Rewinding the Monblock Centrifugal Motor using best quality winding wire including cost of wire, Sleeve, other insulating and fibre class materials after deducting the cost of old materials.
Replacement of driven end (No: XXXX) and Non driven end (No:XXXX) Bearings suitable for Monblock Centrifugal Motor including the cost of Bearing and labour charges after deducting the cost of old materials.
Replacement of cooling fan at motor end and Terminal Board for suitable for Monblock Centrifugal Pumpset and labour charges after deducting the cost of old materials.
Transporting charges for Monblock Centrifugal Pumpset from work shop to Pump House after attending repair works.
Re-erection of pumpset in the Sump / Well by using required Rubber washer and Bolt & Nuts and connecting the power supply cable and delivery pipe line arrangements, testing and trial pumping.
Attending the Rewinding and replacement of bearings of Induction Motor for Horizontal Split Casing Pumpsets
30HP -HSC_Motor
Charges for removing the motor from bed after disconnection of power supply cable, Earthing line and Coupling arrangements by using contractor tools and materials.
Transportation charges for conveying the motor from the Booster Station to Our work shop including loading and unloading charges.
Labour Charges for removing the two end side cover with fan arrangements and the damaged driven end and non driven end bearings.
Charges for removing the burnt wires from the rotor assembly and cleaning and checking the slots of rotor and labour charges for rewinding of Centrifugal Squirrel Cage Induction Motor after deducting the cost of old materials and including suppy and delivery of Class ‘F’ Insulation Super enameled Copper wire, required for rewinding and Fiber Glass wire, Fiber Glass Sleeves, Class ‘F’ insulation paper, Copper Socket and FG thread required for rewinding of Squirrel Cage Induction Motor
Labour Charges for reconditioning the worn out shaft for driven end and non driven end bearing seating, knurling, bend checking, and etc.,
Supply and delivery of Driven End and Non Driven End bearings suitable for the required Induction Motor
Labour Charges fixing the DE and NDE bearings correctly and neatly with required lubrications by contractors tools & Materials
Transportation charges for conveying the motor from work shop to Pumping Station
Charges for reassembling the motor with bed and pump coupling, alignment checking connecting power supply cable, including required bolt and Nuts and testing trial running etc.,
Attending the Repair and Reconditioning works of various capacities of Horizontal Split Casing Pumpsets
30HP -HSC_Pump
Charges for removing the motor from bed assembly after dismantling of Coupling arrangements and removing the pump assembly and including the provision of dummy flange arrangements by using contractor tools and materials.
Transportation charges for conveying the Pump assembly from the Pumping Station to work shop including loading and unloading charges.
Labour Charges for removing the impeller by using hydralic system, DE and NDE Bearings
Labour Charges for reconditioning the worn out shaft including welding the shaft to suit the impeller and suit the driven end and non driven end bearing seating, knurling, bend checking and etc.,
Supply, delivery and fixing of Shaft sleeves in Gun metal including machining charges and making key ways after deducting the scrap materials
Balancing of Rotor with impeller both dyanamically and Hydralically by using required dyanamic balancing machine
Supply, delivery and fixing of Gunmetal seal rings for impeller neck including machining charges after deducting the scrap materials
Supply and delivery of Driven End and Non Driven End bearings
Labour Charges fixing the DE and NDE bearings correctly and neatly with required lubrications by contractors tools & Materials
Transportation charges for conveying the Pump assembly from work shop to Pumping Station.
Charges for reassembling the Pump with Motor by using pulley and alignment checking, including required bolt and Nuts and testing trial running etc.,
SUPPLY AND DELIVERY OF SERVICE CONNECTION ACCESSORIES L.T. 1100V PVC ALUMINIUM ARMOURED UNDER GROUND CABLE WITH ISI MARK
25 Sq.mm 3.5 Core
35 Sq.mm 3.5 Core
50 Sq.mm 3.5 Core
SUPPLY AND DELIVERY OF L.T. CABLES following size sq mm 3 CORE 1.1 KV GRADE ARMOURED ALUMINIUM CONDUCTOR CROSS LINKED POLY ETHYLENE INSULATED PVC SHEATHED CABLES CONFORMING TO IS 7098 (PART I)/1988 WITH ISI MARKING
25 Sq.mm 3 Core
35 Sq.mm 3 Core
70 Sq.mm 3Core
SUPPLY AND DELIVERY OF PVC INSULATED AND SHEATHED following sq mm 3 CORE FLAT TYPE COPPER CABLE CONFORMING TO IS 694/1989
SUPPLY AND DELIVERY OF 150mm dia Pressure Gauge and Vaccum guage including all accessories as per specification (For Suction and Delivery to be mounted on wall on Teak Wood Board)
Supply, delivey and fixing of MOULDED CASE CIRCUIT BREAKER (MCCB) WITH THERMO MAGNETIC RELEASE - 4 Pole
Range - 63/100A
Supply, delivey and fixing of RATE FOR MIXED DI-ELECTRIC CAPACITOR WITH TNEB TEST CERTIFICATE WITH ACCESSORIES INCLUDING BANKING CONFORMIING TO IS 2834.
Supply, delivey and fixing of Electro magnetic contactors of suitable capacity in AC Three Phase rating, conforming to IS/IEC 60947-4-1.
Supply, delivey and fixing of Overload Relays: Directly operated Bimetallic Thermal overload relay which operates in case of overload and also in case of under voltage with manual and auto reset mode.
Supply, delivey and fixing of Preventer – Single Phasing - Electric Motor protection device against single phasing. The device should protect the motor against single phasing, reverse phasing and unbalance supply. The device should be suitable for any auxillary device and have provisions for mounting in panel boards. Operate without need of any auxiliary supply.
Electric Motor protection device against dry running. The device should protect the motor against Dry running. The device should be suitable for any auxillary device and have provisions for mounting in panel boards. Operate without need of any auxiliary supply
Supply, delivey and fixing of FUSE UNITS (ANCHOR /EQUIVALENT)
63 Amps Porcelain fuse unit (500 V)
100 Amps Porcelain fuse unit (500 V)
200 Amps Porcelain fuse unit (500 V)
Supply, delivey and fixing of CHANGE OVER SWITCHES
32 Amps three phase 500 V 4 pole Change over switch
63 Amps three phase 500 V 4 pole Change over switch
100 Amps three phase 500 V 4 pole Change over switch
Supply, delivey and fixing of PVC INSULATED SINGLE CORE MULTI STRAND FIRE RETARDANT FLEXIBLE COPPER CABLE WITH ISI MARK CONFORMING TO IS
Supply, delivey and fixing of HRC - FUSES - HIGHER END
HRC - 16 Amps
HRC - 32 Amps
HRC - 63 Amps
HRC - 125 Amps
HRC - 200 Amps
Supply and delivery of the following Electrical Works :consumable items at the site of work to carryout the general maintenace works
Voltmeter Digital - Three Phase Class 1-AC
Ammeter Digital - Three Phase Class 1-1A
20W 4 Feet LED Fitting with LED (Higher end)
LED OUTDOOR FITTINGS (LIGHT EMITTING DIODE) LOWER END 25W LED Street Light Fitting with LED
Supply and delivery of the following consumable items for Pump Set repairs at the site of work to carryout the general maintenace works
50mm GM Gate valve
80mm GM Gate valve
R I Sheet
Bolts and Nuts - All sizes
50mm GI Pipe
80mm GI Pipe
100mm GI pipe
Supply, delivery and fixing of DI D/F Gate sluice/scour valves (soft seated) resilient seated soft sealing Gate Valves(Sluice Valves) with body Bonnet of Ductile cast iron of Grade GGG 40 or equivalent grade, Wedge fully rubber lined with EPDM replaceable spindle nut without gland packing and with 3 O- Ring protection on the shaft and seals of NBR and the valves should be of Vacuum tight and 100% leak proof with face to face dimensions as per BS 5163- 89/ISI 14846-2000/DIN 3202 F4. All the valves should be with electrostatic powder coating both inside and out side with pocket less straight through body passage. All the valves are to be compatible for buried application with pressure rating PN 10/16 and with 5 years warranty.
150mm DI Gate Valve
Supply, delivey and fixing of C.I. DOUBLE AIR VALVE AS PER ISI 14845/2000 AND WITH 5 YEARS WARRANTY
50mm CI Air Valve
SUMP CLEANING
Cleaning of all storage points like sumps, elevated reservoirs of various capacities available in this scheme at a frequency of once in two months including scrapping the inner side of compartment completely, scouring / dewatering / desilting using required machineries, materials, labour and all other incidental charges, application of bleaching powder/ solution etc complete.
For 5000 to 15000 lit cap sump
For 15001 to 30000 lit cap sump
For 45001 to 60000 lit cap sump
Desilting light or sandysoil or silt from collection well below water level including the charges for special tools & plants and air compressor etc complete
Bleaching powder of 34% concentration as per standard specification.
COMBINED WATER SUPPLY SCHEME TO NAMATHODU AND CHETPET RTP AND 22 OTHER HABITATIONS IN PERANAMALLUR UNION OF TIRUVANNAMALAI DISTRICT
Operation and Maintenance of the Electro Mechanical installations, equipments, components, pipelines valves and appurtenances, water retaining structures including protecton of all schemee components from damages/ theft undertaking legal actions for such untoward incidents, preventive maintenance, disinfection and deliverance of water as per quality standards and supply of earmarked quantity of water to the beneficiaries as per Annexure .........., carrying out the O&M as per standard operating procedures, Acts and rules in force and as directed by TWAD Board Oficers and excluding cost towards attending leak, burst repair and replacement works to electro mechanical installations consumables for disinfection of water, cleaning of all water retaining structure, electricity .
Repair & Renewals and Leak & Bursts :
Attending Leaks in the PVC pipelines of this CWSS for the following items, as per the standard procedure including earthwork excavation, dewatering, removing, relaying, jointing, civil works, cost of materials and all other incidental charges, etc complete within the stipulated time limit as directed by the TWAD Board officers.
PVC 4 KSC Pipes_Minor Leak
90mm OD PVC 4 KSC pipes_Minor Leak
110mm OD PVC 4 KSC pipes_Minor Leak
140mm OD PVC 4 KSC pipes_Minor Leak
PVC 4 KSC Pipes_Major Leak
90mm OD PVC 4 KSC pipes_Major Leak
110mm OD PVC 4 KSC pipes_Major Leak
140mm OD PVC 4 KSC pipes_Major Leak
Attending Leaks/Bursts in the HDPE pipelines of this CWSS for the following items, as per the standard procedure including earthwork excavation, dewatering, removing, relaying, jointing by Electro fusion/butt Joint, civil works, cost of materials and all other incidental charges, etc complete within the stipulated time limit as directed by the TWAD Board officers.
HDPE PN 6 Pipes_Minor Leaks
110mm HDPE PN 6 pipes_Minor Leak
140mm HDPE PN 6 pipes_Minor Leak
160mm HDPE PN 6 pipes_Minor Leak
200mm HDPE PN 6 pipes_Minor Leak
HDPE PN 6 Pipes_Major Leaks
125mm HDPE PN 6 pipes_Major Leak
160mm HDPE PN 6 pipes_Major Leak
200mm HDPE PN 6 pipes_Major Leak
Attending leaks and bursts in GI pipes of various sizes including Supply and delivery of following G I PIPES (MEDIUM) AS PER IS 1239/PART I/2004 and Lowering GI pipes and specials in the trenches and laying to proper grade and alignment, jointing with GI Specials and as directed by the TWAD Officers
80mm GI Pipe leak above GL
100mm GI Pipe leak above GL
Attending joint (Collar) Leaks in the AC pipelines of this CWSS for the following items, as per the standard procedure including earthwork excavation, dewatering, removing, relaying, jointing, civil works, cost of materials and all incidental charges, etc complete within the stipulated time limit as specified in Clause 2.6.4 of General conditions of Contract
AC Pipe_Collar Leak
150mm AC_Collar Leak
200mm AC_Collar Leak
250mm AC_Collar Leak
AC Pipe_Minor Leak centre crack
150mm AC Pipe_MS Cut Barrel
200mm AC Pipe_MS Cut Barrel
250mm AC Pipe_MS Cut Barrel
Attending Leaks/Bursts in the O-PVC pipelines of this CWSS for the following items, as per the standard procedure including earthwork excavation, dewatering, removing, relaying, jointing, civil works, cost of materials and all incidental charges, etc complete within the stipulated time limit as specified in Clause 2.6.4 of General conditions of Contract
250mm O-PVC Pipe Leak
Attending Leaks/Bursts in the DI pipelines of this CWSS for the following items, as per the standard procedure including earthwork excavation, dewatering, removing, relaying, jointing, civil works, cost of materials and all incidental charges, etc complete within the stipulated time limit as specified in Clause 2.6.4 of General conditions of Contract
DI Pipes_Minor Leak
150mm DI pipes - Minor leak
Labour for cutting open B.T. Roads (or) Maccadam road for laying water mains - 15 cm thick (SOR VOL II P.195)
For all size Pumping mains
Road Restoration with PCC 1:2:4 using 20 mm HBGS for the Concrete Road cut Portion after the pipes are laid, joined and tested complete and as directed by TWAD Board Officers - 15 cm thick
For all size Pumping mains
MATERIALS
Supply and delivery of following sizes of UN PLASTICIZED O-PVC PIPES FOR POTABLE WATER SUPPLY AS PER IS 16647 / 2017 inclusive of transportation charges to stockyard excluding unloading anywhere in Tamilnadu etc, complete and as directed by the TWAD Board officers. (SOR VOL II P.11)
250mm O-PVC PIPE PN 12.5 Class 500
Supply and delivery of following sizes of HDPE PIPES - PE 100 AS PER IS 4984/2016 (Pre-Compounded Resin) inclusive of transportation charges to stockyard excluding unloading anywhere in Tamilnadu etc, complete and as directed by the TWAD Board officers. (SOR VOL II P.14)
200mm HDPE PN 6
160mm HDPE PN 6
140mm HDPE PN 6
125mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
CIVIL WORKS
Earth work excavation and depositing on bank with initial lead of 10 m and initial lift of 2m in narrow trenches for laying of pipes for water supply in the following types of soil
Hard stiff clay, stiff black cotton, hard red earth, shales, murrum gravel, stoney earth and earth mixed with small size boulders and hard gravelly soil. (SOR VOL II P.192)
250mm O PVC
200mm HDPE PN 6
160mm HDPE PN 6
140mm HDPE PN 6
140mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
Lowering of OPVC Pipes and specials in the trenches and laying to proper grade and alignment and as directed by the TWAD Officers. (SOR VOL II P.161)
250mm O PVC
Lowering HDPE pipes and specials to trench and laying to proper grade and alignment and as directed by the TWAD Officers. (SOR VOL II P.171)
200mm HDPE PN 6
160mm HDPE PN 6
140mm HDPE PN 6
125mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
Jointing OPVC-S/S pipes and specials with rubber gaskets (tyton joint) including cost of lubricants. (including cost of jointing materials) (SOR VOL II P.164)
250mm O PVC - 6m Length
Jointing HDPE Pipes and Specials by butt fusion welding / electro fusion welding joints using fusion equipment as per ISO 21307-2011 and as per IS 7634 (part-2) : 2012 including cost of hire charges for butt fusion equipment power supply arrangements etc., complete as per directed by TWAD Board Officers. (SOR VOL II P.184)
200mm HDPE PN 6
160mm HDPE PN 6
140mm HDPE PN 6
125mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
75mm HDPE PN 6
63mm HDPE PN 6
Refiling with excavated sand or other loose soil complying with standerd specification in layers of 15 cm thick well rammed and consolidated after pipes and specials are laid and tested. (SOR VOL II P.192)
250mm O PVC
200mm HDPE PN 6
160mm HDPE PN 6
140mm HDPE PN 6
125mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
Pumpsets
Carrying out the following repair works occuring during the maintenance period in the Electrical, Mechanical and Elctro-mechanical items to bring back the scheme / components into normal running conditition as per standard specification including all labour charges, cost of materials and all incidental charges within the stipulated time limit etc., complete as specified in Clause 2.8 of General conditions of Contract Part II etc as directed by TWAD Board officers
Attending the Rewinding, Repair and Renewal works in various capacity Open Well Submersible Pumpsets
Removing the Submersible pumpset by using tripod set after disconnecting the power supply cable and delivery pipe line fittings
5HP -OWS
7.5HP -OWS
12.50HP -OWS
30HP -OWS
Transporting the pumpset from Pump House to work shop.
5HP -OWS
7.5HP -OWS
12.50HP -OWS
30HP -OWS
Rewinding the submersible motor using best quality winding wire including cost of wire, Sleeve, other insulating and fibre class materials after deducting the cost of old materials.
5HP -OWS
7.5HP -OWS
12.50HP -OWS
30HP -OWS
Reconditioning the worn-out shaft and fittings, impeller and Gun Metal/ SS Bushes including cost of lath work & labour charges etc.,
5HP -OWS
7.5HP -OWS
12.50HP -OWS
30HP -OWS
Replacement of carbon type thrust bearing and pumpside Gun Metal Bush including cost of labour charges after deducting the cost of old material
5HP -OWS
7.5HP -OWS
12.50HP -OWS
30HP -OWS
Transporting charges for Submersible pumpset from work shop to Pump House after attending repair works.
5HP -OWS
7.5HP -OWS
12.50HP -OWS
30HP -OWS
Re-erection of pumpset in the Sump / Well by using tripod set and required Rubber washer and Bolt & Nuts and connecting the power supply cable and delivery pipeline arrangements testing to trial pumping.
5HP -OWS
7.5HP -OWS
12.50HP -OWS
30HP -OWS
Attending the Rewinding, Repair and Renewal works in Monoblock Pumpset
5HP_Monoblock
Removing the Monblock Centrifugal Pumpset from the Bed assembly by using contractors tools and materials after disconnecting the power supply cable and delivery pipe line fittings with required dummy plate arrangements.
Transporting the pumpset from the Pumping Station to work shop.
Removing the Burnt winding materials from the stator slots and cleaning the stator and rotor assembly by using contractor tools and materials
Reconditioning the worn-out shaft and fittings, impeller and Rope gland bush including cost of lath work & labour charges etc.,
Rewinding the Monblock Centrifugal Motor using best quality winding wire including cost of wire, Sleeve, other insulating and fibre class materials after deducting the cost of old materials.
Replacement of driven end (No: XXXX) and Non driven end (No:XXXX) Bearings suitable for Monblock Centrifugal Motor including the cost of Bearing and labour charges after deducting the cost of old materials.
Replacement of cooling fan at motor end and Terminal Board for suitable for Monblock Centrifugal Pumpset and labour charges after deducting the cost of old materials.
Transporting charges for Monblock Centrifugal Pumpset from work shop to Pump House after attending repair works.
Re-erection of pumpset in the Sump / Well by using required Rubber washer and Bolt & Nuts and connecting the power supply cable and delivery pipe line arrangements, testing and trial pumping.
7.5HP_Monoblock
Removing the Monblock Centrifugal Pumpset from the Bed assembly by using contractors tools and materials after disconnecting the power supply cable and delivery pipe line fittings with required dummy plate arrangements.
Transporting the pumpset from the Pumping Station to work shop.
Removing the Burnt winding materials from the stator slots and cleaning the stator and rotor assembly by using contractor tools and materials
Reconditioning the worn-out shaft and fittings, impeller and Rope gland bush including cost of lath work & labour charges etc.,
Rewinding the Monblock Centrifugal Motor using best quality winding wire including cost of wire, Sleeve, other insulating and fibre class materials after deducting the cost of old materials.
Replacement of driven end (No: XXXX) and Non driven end (No:XXXX) Bearings suitable for Monblock Centrifugal Motor including the cost of Bearing and labour charges after deducting the cost of old materials.
Replacement of cooling fan at motor end and Terminal Board for suitable for Monblock Centrifugal Pumpset and labour charges after deducting the cost of old materials.
Transporting charges for Monblock Centrifugal Pumpset from work shop to Pump House after attending repair works.
Re-erection of pumpset in the Sump / Well by using required Rubber washer and Bolt & Nuts and connecting the power supply cable and delivery pipe line arrangements, testing and trial pumping.
Attending the Rewinding and replacement of bearings of Induction Motor for Horizontal Split Casing Pumpsets
50HP -HSC_Motor
Charges for removing the motor from bed after disconnection of power supply cable, Earthing line and Coupling arrangements by using contractor tools and materials.
Transportation charges for conveying the motor from the Booster Station to Our work shop including loading and unloading charges.
Labour Charges for removing the two end side cover with fan arrangements and the damaged driven end and non driven end bearings.
Charges for removing the burnt wires from the rotor assembly and cleaning and checking the slots of rotor and labour charges for rewinding of Centrifugal Squirrel Cage Induction Motor after deducting the cost of old materials and including suppy and delivery of Class ‘F’ Insulation Super enameled Copper wire, required for rewinding and Fiber Glass wire, Fiber Glass Sleeves, Class ‘F’ insulation paper, Copper Socket and FG thread required for rewinding of Squirrel Cage Induction Motor
Labour Charges for reconditioning the worn out shaft for driven end and non driven end bearing seating, knurling, bend checking, and etc.,
Supply and delivery of Driven End and Non Driven End bearings suitable for the required Induction Motor
Labour Charges fixing the DE and NDE bearings correctly and neatly with required lubrications by contractors tools & Materials
Transportation charges for conveying the motor from work shop to Pumping Station
Charges for reassembling the motor with bed and pump coupling, alignment checking connecting power supply cable, including required bolt and Nuts and testing trial running etc.,
Attending the Repair and Reconditioning works of various capacities of Horizontal Split Casing Pumpsets
50HP -HSC_Pump
Charges for removing the motor from bed assembly after dismantling of Coupling arrangements and removing the pump assembly and including the provision of dummy flange arrangements by using contractor tools and materials.
Transportation charges for conveying the Pump assembly from the Pumping Station to work shop including loading and unloading charges.
Labour Charges for removing the impeller by using hydralic system, DE and NDE Bearings
Labour Charges for reconditioning the worn out shaft including welding the shaft to suit the impeller and suit the driven end and non driven end bearing seating, knurling, bend checking and etc.,
Supply, delivery and fixing of Shaft sleeves in Gun metal including machining charges and making key ways after deducting the scrap materials
Balancing of Rotor with impeller both dyanamically and Hydralically by using required dyanamic balancing machine
Supply, delivery and fixing of Gunmetal seal rings for impeller neck including machining charges after deducting the scrap materials
Supply and delivery of Driven End and Non Driven End bearings
Labour Charges fixing the DE and NDE bearings correctly and neatly with required lubrications by contractors tools & Materials
Transportation charges for conveying the Pump assembly from work shop to Pumping Station.
Charges for reassembling the Pump with Motor by using pulley and alignment checking, including required bolt and Nuts and testing trial running etc.,
SUPPLY AND DELIVERY OF SERVICE CONNECTION ACCESSORIES L.T. 1100V PVC ALUMINIUM ARMOURED UNDER GROUND CABLE WITH ISI MARK
70 Sq.mm 3.5 Core
95 Sq.mm 3.5 Core
120 Sq.mm 3.5 Core
SUPPLY AND DELIVERY OF L.T. CABLES following size sq mm 3 CORE 1.1 KV GRADE ARMOURED ALUMINIUM CONDUCTOR CROSS LINKED POLY ETHYLENE INSULATED PVC SHEATHED CABLES CONFORMING TO IS 7098 (PART I)/1988 WITH ISI MARKING
95 Sq.mm 3 Core
SUPPLY AND DELIVERY OF PVC INSULATED AND SHEATHED following sq mm 3 CORE FLAT TYPE COPPER CABLE CONFORMING TO IS 694/1989
SUPPLY AND DELIVERY OF 150mm dia Pressure Gauge and Vaccum guage including all accessories as per specification (For Suction and Delivery to be mounted on wall on Teak Wood Board)
Supply, delivey and fixing of MOULDED CASE CIRCUIT BREAKER (MCCB) WITH THERMO MAGNETIC RELEASE - 4 Pole
Range - 63/100A
Range - 125A
Supply, delivey and fixing of RATE FOR MIXED DI-ELECTRIC CAPACITOR WITH TNEB TEST CERTIFICATE WITH ACCESSORIES INCLUDING BANKING CONFORMIING TO IS 2834.
Supply, delivey and fixing of Electro magnetic contactors of suitable capacity in AC Three Phase rating, conforming to IS/IEC 60947-4-1.
Supply, delivey and fixing of Overload Relays: Directly operated Bimetallic Thermal overload relay which operates in case of overload and also in case of under voltage with manual and auto reset mode.
Supply, delivey and fixing of Preventer – Single Phasing - Electric Motor protection device against single phasing. The device should protect the motor against single phasing, reverse phasing and unbalance supply. The device should be suitable for any auxillary device and have provisions for mounting in panel boards. Operate without need of any auxiliary supply.
Electric Motor protection device against dry running. The device should protect the motor against Dry running. The device should be suitable for any auxillary device and have provisions for mounting in panel boards. Operate without need of any auxiliary supply
Supply, delivey and fixing of FUSE UNITS (ANCHOR /EQUIVALENT)
63 Amps Porcelain fuse unit (500 V)
100 Amps Porcelain fuse unit (500 V)
200 Amps Porcelain fuse unit (500 V)
Supply, delivey and fixing of CHANGE OVER SWITCHES
100 Amps three phase 500 V 4 pole Change over switch
200 Amps three phase 500 V 4 pole Change over switch
250 Amps three phase 500 V 4 pole Change over switch
Supply, delivey and fixing of PVC INSULATED SINGLE CORE MULTI STRAND FIRE RETARDANT FLEXIBLE COPPER CABLE WITH ISI MARK CONFORMING TO IS
Supply, delivey and fixing of HRC - FUSES - HIGHER END
HRC - 16 Amps
HRC - 32 Amps
HRC - 63 Amps
HRC - 125 Amps
HRC - 200 Amps
Supply and delivery of the following Electrical Works :consumable items at the site of work to carryout the general maintenace works
Voltmeter Digital - Three Phase Class 1-AC
Ammeter Digital - Three Phase Class 1-1A
20W 4 Feet LED Fitting with LED (Higher end)
LED OUTDOOR FITTINGS (LIGHT EMITTING DIODE) LOWER END 25W LED Street Light Fitting with LED
Supply and delivery of the following consumable items for Pump Set repairs at the site of work to carryout the general maintenace works
80mm GM Gate valve
100mm GM Gate valve
R I Sheet
Bolts and Nuts - All sizes
50mm GI Pipe
80mm GI Pipe
100mm GI pipe
Supply, delivery and fixing of DI D/F Gate sluice/scour valves (soft seated) resilient seated soft sealing Gate Valves(Sluice Valves) with body Bonnet of Ductile cast iron of Grade GGG 40 or equivalent grade, Wedge fully rubber lined with EPDM replaceable spindle nut without gland packing and with 3 O- Ring protection on the shaft and seals of NBR and the valves should be of Vacuum tight and 100% leak proof with face to face dimensions as per BS 5163- 89/ISI 14846-2000/DIN 3202 F4. All the valves should be with electrostatic powder coating both inside and out side with pocket less straight through body passage. All the valves are to be compatible for buried application with pressure rating PN 10/16 and with 5 years warranty.
100mm DI Gate Valve
150mm DI Gate Valve
Supply, delivey and fixing of C.I. DOUBLE AIR VALVE AS PER ISI 14845/2000 AND WITH 5 YEARS WARRANTY
50mm CI Air Valve
80mm CI Air Valve
100mm CI Air Valve
SUMP CLEANING
Cleaning of all storage points like sumps, elevated reservoirs of various capacities available in this scheme at a frequency of once in two months including scrapping the inner side of compartment completely, scouring / dewatering / desilting using required machineries, materials, labour and all other incidental charges, application of bleaching powder/ solution etc complete.
For 60001 to 75000 lit cap sump
For 75001 to 100000 lit cap sump
Desilting light or sandysoil or silt from collection well below water level including the charges for special tools & plants and air compressor etc complete
Bleaching powder of 34% concentration as per standard specification.
COMBINED WATER SUPPLY SCHEME TO ABDULLAPURAM AND 13 OTHER HABITATIONS IN VEMBAKKAM UNION OF TIRUVANNAMALAI DISTRICT
Operation and Maintenance of the Electro Mechanical installations, equipments, components, pipelines valves and appurtenances, water retaining structures including protecton of all schemee components from damages/ theft undertaking legal actions for such untoward incidents, preventive maintenance, disinfection and deliverance of water as per quality standards and supply of earmarked quantity of water to the beneficiaries as per Annexure .........., carrying out the O&M as per standard operating procedures, Acts and rules in force and as directed by TWAD Board Oficers and excluding cost towards attending leak, burst repair and replacement works to electro mechanical installations consumables for disinfection of water, cleaning of all water retaining structure, electricity .
Repair & Renewals and Leak & Bursts :
Attending Leaks in the PVC pipelines of this CWSS for the following items, as per the standard procedure including earthwork excavation, dewatering, removing, relaying, jointing, civil works, cost of materials and all other incidental charges, etc complete within the stipulated time limit as directed by the TWAD Board officers.
PVC 4 KSC Pipes_Minor Leak
63mm OD PVC 4 KSC pipes_Minor Leak
75mm OD PVC 4 KSC pipes_Minor Leak
90mm OD PVC 4 KSC pipes_Minor Leak
110mm OD PVC 4 KSC pipes_Minor Leak
140mm OD PVC 4 KSC pipes_Minor Leak
PVC 4 KSC Pipes_Major Leak
63mm OD PVC 4 KSC pipes_Major Leak
75mm OD PVC 4 KSC pipes_Major Leak
90mm OD PVC 4 KSC pipes_Major Leak
110mm OD PVC 4 KSC pipes_Major Leak
140mm OD PVC 4 KSC pipes_Major Leak
Attending Leaks/Bursts in the HDPE pipelines of this CWSS for the following items, as per the standard procedure including earthwork excavation, dewatering, removing, relaying, jointing by Electro fusion/butt Joint, civil works, cost of materials and all other incidental charges, etc complete within the stipulated time limit as directed by the TWAD Board officers.
HDPE PN 6 Pipes_Minor Leaks
63mm HDPE PN 6 pipes_Minor Leak
75mm HDPE PN 6 pipes_Minor Leak
140mm HDPE PN 6 pipes_Minor Leak
160mm HDPE PN 6 pipes_Minor Leak
HDPE PN 6 Pipes_Major Leaks
63mm HDPE PN 6 pipes_Major Leak
75mm HDPE PN 6 pipes_Major Leak
140mm HDPE PN 6 pipes_Major Leak
160mm HDPE PN 6 pipes_Major Leak
Attending leaks and bursts in GI pipes of various sizes including Supply and delivery of following G I PIPES (MEDIUM) AS PER IS 1239/PART I/2004 and Lowering GI pipes and specials in the trenches and laying to proper grade and alignment, jointing with GI Specials and as directed by the TWAD Officers
50mm GI Pipe leak above GL
65mm GI Pipe leak above GL
80mm GI Pipe leak above GL
100mm GI Pipe leak above GL
Attending joint (Collar) Leaks in the AC pipelines of this CWSS for the following items, as per the standard procedure including earthwork excavation, dewatering, removing, relaying, jointing, civil works, cost of materials and all incidental charges, etc complete within the stipulated time limit as specified in Clause 2.6.4 of General conditions of Contract
AC Pipe_Collar Leak
150mm AC_Collar Leak
Labour for cutting open B.T. Roads (or) Maccadam road for laying water mains - 15 cm thick (SOR VOL II P.195)
For all size Pumping mains
Road Restoration with PCC 1:2:4 using 20 mm HBGS for the Concrete Road cut Portion after the pipes are laid, joined and tested complete and as directed by TWAD Board Officers - 15 cm thick
For all size Pumping mains
MATERIALS
Supply and delivery of following sizes of HDPE PIPES - PE 100 AS PER IS 4984/2016 (Pre-Compounded Resin) inclusive of transportation charges to stockyard excluding unloading anywhere in Tamilnadu etc, complete and as directed by the TWAD Board officers. (SOR VOL II P.14)
160mm HDPE PN 6
140mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
75mm HDPE PN 6
63mm HDPE PN 6
CIVIL WORKS
Earth work excavation and depositing on bank with initial lead of 10 m and initial lift of 2m in narrow trenches for laying of pipes for water supply in the following types of soil
Hard stiff clay, stiff black cotton, hard red earth, shales, murrum gravel, stoney earth and earth mixed with small size boulders and hard gravelly soil. (SOR VOL II P.192)
160mm HDPE PN 6
140mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
75mm HDPE PN 6
63mm HDPE PN 6
Lowering HDPE pipes and specials to trench and laying to proper grade and alignment and as directed by the TWAD Officers. (SOR VOL II P.171)
160mm HDPE PN 6
140mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
75mm HDPE PN 6
63mm HDPE PN 6
Jointing HDPE Pipes and Specials by butt fusion welding / electro fusion welding joints using fusion equipment as per ISO 21307-2011 and as per IS 7634 (part-2) : 2012 including cost of hire charges for butt fusion equipment power supply arrangements etc., complete as per directed by TWAD Board Officers. (SOR VOL II P.184)
160mm HDPE PN 6
140mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
75mm HDPE PN 6
63mm HDPE PN 6
Refiling with excavated sand or other loose soil complying with standerd specification in layers of 15 cm thick well rammed and consolidated after pipes and specials are laid and tested. (SOR VOL II P.192)
160mm HDPE PN 6
140mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
75mm HDPE PN 6
63mm HDPE PN 6
Pumpsets
Carrying out the following repair works occuring during the maintenance period in the Electrical, Mechanical and Elctro-mechanical items to bring back the scheme / components into normal running conditition as per standard specification including all labour charges, cost of materials and all incidental charges within the stipulated time limit etc., complete as specified in Clause 2.8 of General conditions of Contract Part II etc as directed by TWAD Board officers
Attending the Rewinding, Repair and Renewal works in various capacity Open Well Submersible Pumpsets
Removing the Submersible pumpset by using tripod set after disconnecting the power supply cable and delivery pipe line fittings
5HP -OWS
10HP -OWS
12.50HP -OWS
Transporting the pumpset from Pump House to work shop.
5HP -OWS
10HP -OWS
12.50HP -OWS
Rewinding the submersible motor using best quality winding wire including cost of wire, Sleeve, other insulating and fibre class materials after deducting the cost of old materials.
5HP -OWS
10HP -OWS
12.50HP -OWS
Reconditioning the worn-out shaft and fittings, impeller and Gun Metal/ SS Bushes including cost of lath work & labour charges etc.,
5HP -OWS
10HP -OWS
12.50HP -OWS
Replacement of carbon type thrust bearing and pumpside Gun Metal Bush including cost of labour charges after deducting the cost of old material
5HP -OWS
10HP -OWS
12.50HP -OWS
Transporting charges for Submersible pumpset from work shop to Pump House after attending repair works.
5HP -OWS
10HP -OWS
12.50HP -OWS
Re-erection of pumpset in the Sump / Well by using tripod set and required Rubber washer and Bolt & Nuts and connecting the power supply cable and delivery pipeline arrangements testing to trial pumping.
5HP -OWS
10HP -OWS
12.50HP -OWS
SUPPLY AND DELIVERY OF SERVICE CONNECTION ACCESSORIES L.T. 1100V PVC ALUMINIUM ARMOURED UNDER GROUND CABLE WITH ISI MARK
25 Sq.mm 3.5 Core
35 Sq.mm 3.5 Core
50 Sq.mm 3.5 Core
SUPPLY AND DELIVERY OF L.T. CABLES following size sq mm 3 CORE 1.1 KV GRADE ARMOURED ALUMINIUM CONDUCTOR CROSS LINKED POLY ETHYLENE INSULATED PVC SHEATHED CABLES CONFORMING TO IS 7098 (PART I)/1988 WITH ISI MARKING
50 Sq.mm 3 Core
SUPPLY AND DELIVERY OF PVC INSULATED AND SHEATHED following sq mm 3 CORE FLAT TYPE COPPER CABLE CONFORMING TO IS 694/1989
SUPPLY AND DELIVERY OF 150mm dia Pressure Gauge and Vaccum guage including all accessories as per specification (For Suction and Delivery to be mounted on wall on Teak Wood Board)
Supply, delivey and fixing of MOULDED CASE CIRCUIT BREAKER (MCCB) WITH THERMO MAGNETIC RELEASE - 4 Pole
Range - 63/100A
Supply, delivey and fixing of RATE FOR MIXED DI-ELECTRIC CAPACITOR WITH TNEB TEST CERTIFICATE WITH ACCESSORIES INCLUDING BANKING CONFORMIING TO IS 2834.
Supply, delivey and fixing of Electro magnetic contactors of suitable capacity in AC Three Phase rating, conforming to IS/IEC 60947-4-1.
Supply, delivey and fixing of Overload Relays: Directly operated Bimetallic Thermal overload relay which operates in case of overload and also in case of under voltage with manual and auto reset mode.
Supply, delivey and fixing of Preventer – Single Phasing - Electric Motor protection device against single phasing. The device should protect the motor against single phasing, reverse phasing and unbalance supply. The device should be suitable for any auxillary device and have provisions for mounting in panel boards. Operate without need of any auxiliary supply.
Electric Motor protection device against dry running. The device should protect the motor against Dry running. The device should be suitable for any auxillary device and have provisions for mounting in panel boards. Operate without need of any auxiliary supply
Supply, delivey and fixing of FUSE UNITS (ANCHOR /EQUIVALENT)
63 Amps Porcelain fuse unit (500 V)
100 Amps Porcelain fuse unit (500 V)
200 Amps Porcelain fuse unit (500 V)
Supply, delivey and fixing of CHANGE OVER SWITCHES
16 Amps three phase 500 V 4 pole Change over switch
32 Amps three phase 500 V 4 pole Change over switch
63 Amps three phase 500 V 4 pole Change over switch
100 Amps three phase 500 V 4 pole Change over switch
Supply, delivey and fixing of PVC INSULATED SINGLE CORE MULTI STRAND FIRE RETARDANT FLEXIBLE COPPER CABLE WITH ISI MARK CONFORMING TO IS
Supply, delivey and fixing of HRC - FUSES - HIGHER END
HRC - 16 Amps
HRC - 32 Amps
HRC - 63 Amps
HRC - 125 Amps
Supply and delivery of the following Electrical Works :consumable items at the site of work to carryout the general maintenace works
Voltmeter Digital - Three Phase Class 1-AC
Ammeter Digital - Three Phase Class 1-1A
20W 4 Feet LED Fitting with LED (Higher end)
LED OUTDOOR FITTINGS (LIGHT EMITTING DIODE) LOWER END 25W LED Street Light Fitting with LED
Supply and delivery of the following consumable items for Pump Set repairs at the site of work to carryout the general maintenace works
50mm GM Gate valve
80mm GM Gate valve
R I Sheet
Bolts and Nuts - All sizes
50mm GI Pipe
80mm GI Pipe
100mm GI pipe
Supply, delivery and fixing of DI D/F Gate sluice/scour valves (soft seated) resilient seated soft sealing Gate Valves(Sluice Valves) with body Bonnet of Ductile cast iron of Grade GGG 40 or equivalent grade, Wedge fully rubber lined with EPDM replaceable spindle nut without gland packing and with 3 O- Ring protection on the shaft and seals of NBR and the valves should be of Vacuum tight and 100% leak proof with face to face dimensions as per BS 5163- 89/ISI 14846-2000/DIN 3202 F4. All the valves should be with electrostatic powder coating both inside and out side with pocket less straight through body passage. All the valves are to be compatible for buried application with pressure rating PN 10/16 and with 5 years warranty.
100mm DI Gate Valve
Supply, delivey and fixing of C.I. DOUBLE AIR VALVE AS PER ISI 14845/2000 AND WITH 5 YEARS WARRANTY
50mm CI Air Valve
SUMP CLEANING
Cleaning of all storage points like sumps, elevated reservoirs of various capacities available in this scheme at a frequency of once in two months including scrapping the inner side of compartment completely, scouring / dewatering / desilting using required machineries, materials, labour and all other incidental charges, application of bleaching powder/ solution etc complete.
For 15001 to 30000 lit cap sump
Desilting light or sandysoil or silt from collection well below water level including the charges for special tools & plants and air compressor etc complete
Bleaching powder of 34% concentration as per standard specification.
COMBINED WATER SUPPLY SCHEME TO ANAKKAVUR AND 6 OTHER HABITATIONS IN ANAKKAVUR UNION OF TIRUVANNAMALAI DISTRICT
Operation and Maintenance of the Electro Mechanical installations, equipments, components, pipelines valves and appurtenances, water retaining structures including protecton of all schemee components from damages/ theft undertaking legal actions for such untoward incidents, preventive maintenance, disinfection and deliverance of water as per quality standards and supply of earmarked quantity of water to the beneficiaries as per Annexure .........., carrying out the O&M as per standard operating procedures, Acts and rules in force and as directed by TWAD Board Oficers and excluding cost towards attending leak, burst repair and replacement works to electro mechanical installations consumables for disinfection of water, cleaning of all water retaining structure, electricity .
Repair & Renewals and Leak & Bursts :
Attending Leaks in the PVC pipelines of this CWSS for the following items, as per the standard procedure including earthwork excavation, dewatering, removing, relaying, jointing, civil works, cost of materials and all other incidental charges, etc complete within the stipulated time limit as directed by the TWAD Board officers.
PVC 4 KSC Pipes_Minor Leak
75mm OD PVC 4 KSC pipes_Minor Leak
90mm OD PVC 4 KSC pipes_Minor Leak
140mm OD PVC 4 KSC pipes_Minor Leak
PVC 4 KSC Pipes_Major Leak
75mm OD PVC 4 KSC pipes_Major Leak
90mm OD PVC 4 KSC pipes_Major Leak
140mm OD PVC 4 KSC pipes_Major Leak
Attending Leaks/Bursts in the HDPE pipelines of this CWSS for the following items, as per the standard procedure including earthwork excavation, dewatering, removing, relaying, jointing by Electro fusion/butt Joint, civil works, cost of materials and all other incidental charges, etc complete within the stipulated time limit as directed by the TWAD Board officers.
HDPE PN 6 Pipes_Minor Leaks
140mm HDPE PN 6 pipes_Minor Leak
HDPE PN 6 Pipes_Major Leaks
140mm HDPE PN 6 pipes_Major Leak
Attending leaks and bursts in GI pipes of various sizes including Supply and delivery of following G I PIPES (MEDIUM) AS PER IS 1239/PART I/2004 and Lowering GI pipes and specials in the trenches and laying to proper grade and alignment, jointing with GI Specials and as directed by the TWAD Officers
50mm GI Pipe leak above GL
65mm GI Pipe leak above GL
80mm GI Pipe leak above GL
100mm GI Pipe leak above GL
Labour for cutting open B.T. Roads (or) Maccadam road for laying water mains - 15 cm thick (SOR VOL II P.195)
For all size Pumping mains
Road Restoration with PCC 1:2:4 using 20 mm HBGS for the Concrete Road cut Portion after the pipes are laid, joined and tested complete and as directed by TWAD Board Officers - 15 cm thick
For all size Pumping mains
MATERIALS
Supply and delivery of following sizes of HDPE PIPES - PE 100 AS PER IS 4984/2016 (Pre-Compounded Resin) inclusive of transportation charges to stockyard excluding unloading anywhere in Tamilnadu etc, complete and as directed by the TWAD Board officers. (SOR VOL II P.14)
140mm HDPE PN 6
90mm HDPE PN 6
75mm HDPE PN 6
CIVIL WORKS
Earth work excavation and depositing on bank with initial lead of 10 m and initial lift of 2m in narrow trenches for laying of pipes for water supply in the following types of soil
Hard stiff clay, stiff black cotton, hard red earth, shales, murrum gravel, stoney earth and earth mixed with small size boulders and hard gravelly soil. (SOR VOL II P.192)
140mm HDPE PN 6
90mm HDPE PN 6
75mm HDPE PN 6
Lowering HDPE pipes and specials to trench and laying to proper grade and alignment and as directed by the TWAD Officers. (SOR VOL II P.171)
140mm HDPE PN 6
90mm HDPE PN 6
75mm HDPE PN 6
Jointing HDPE Pipes and Specials by butt fusion welding / electro fusion welding joints using fusion equipment as per ISO 21307-2011 and as per IS 7634 (part-2) : 2012 including cost of hire charges for butt fusion equipment power supply arrangements etc., complete as per directed by TWAD Board Officers. (SOR VOL II P.184)
140mm HDPE PN 6
90mm HDPE PN 6
75mm HDPE PN 6
Refiling with excavated sand or other loose soil complying with standerd specification in layers of 15 cm thick well rammed and consolidated after pipes and specials are laid and tested. (SOR VOL II P.192)
140mm HDPE PN 6
90mm HDPE PN 6
75mm HDPE PN 6
Pumpsets
Carrying out the following repair works occuring during the maintenance period in the Electrical, Mechanical and Elctro-mechanical items to bring back the scheme / components into normal running conditition as per standard specification including all labour charges, cost of materials and all incidental charges within the stipulated time limit etc., complete as specified in Clause 2.8 of General conditions of Contract Part II etc as directed by TWAD Board officers
Attending the Rewinding, Repair and Renewal works in various capacity Open Well Submersible Pumpsets
Removing the Submersible pumpset by using tripod set after disconnecting the power supply cable and delivery pipe line fittings
7.5HP -OWS
12.5HP -OWS
20HP -OWS
Transporting the pumpset from Pump House to work shop.
7.5HP -OWS
12.5HP -OWS
20HP -OWS
Rewinding the submersible motor using best quality winding wire including cost of wire, Sleeve, other insulating and fibre class materials after deducting the cost of old materials.
7.5HP -OWS
12.5HP -OWS
20HP -OWS
Reconditioning the worn-out shaft and fittings, impeller and Gun Metal/ SS Bushes including cost of lath work & labour charges etc.,
7.5HP -OWS
12.5HP -OWS
20HP -OWS
Replacement of carbon type thrust bearing and pumpside Gun Metal Bush including cost of labour charges after deducting the cost of old material
7.5HP -OWS
12.5HP -OWS
20HP -OWS
Transporting charges for Submersible pumpset from work shop to Pump House after attending repair works.
7.5HP -OWS
12.5HP -OWS
20HP -OWS
Re-erection of pumpset in the Sump / Well by using tripod set and required Rubber washer and Bolt & Nuts and connecting the power supply cable and delivery pipeline arrangements testing to trial pumping.
7.5HP -OWS
12.5HP -OWS
20HP -OWS
SUPPLY AND DELIVERY OF SERVICE CONNECTION ACCESSORIES L.T. 1100V PVC ALUMINIUM ARMOURED UNDER GROUND CABLE WITH ISI MARK
25 Sq.mm 3.5 Core
35 Sq.mm 3.5 Core
50 Sq.mm 3.5 Core
SUPPLY AND DELIVERY OF L.T. CABLES following size sq mm 3 CORE 1.1 KV GRADE ARMOURED ALUMINIUM CONDUCTOR CROSS LINKED POLY ETHYLENE INSULATED PVC SHEATHED CABLES CONFORMING TO IS 7098 (PART I)/1988 WITH ISI MARKING
50 Sq.mm 3 Core
SUPPLY AND DELIVERY OF PVC INSULATED AND SHEATHED following sq mm 3 CORE FLAT TYPE COPPER CABLE CONFORMING TO IS 694/1989
SUPPLY AND DELIVERY OF 150mm dia Pressure Gauge and Vaccum guage including all accessories as per specification (For Suction and Delivery to be mounted on wall on Teak Wood Board)
Supply, delivey and fixing of MOULDED CASE CIRCUIT BREAKER (MCCB) WITH THERMO MAGNETIC RELEASE - 4 Pole
Range - 63/100A
Range - 125A
Supply, delivey and fixing of RATE FOR MIXED DI-ELECTRIC CAPACITOR WITH TNEB TEST CERTIFICATE WITH ACCESSORIES INCLUDING BANKING CONFORMIING TO IS 2834.
Supply, delivey and fixing of Electro magnetic contactors of suitable capacity in AC Three Phase rating, conforming to IS/IEC 60947-4-1.
Supply, delivey and fixing of Overload Relays: Directly operated Bimetallic Thermal overload relay which operates in case of overload and also in case of under voltage with manual and auto reset mode.
Supply, delivey and fixing of Preventer – Single Phasing - Electric Motor protection device against single phasing. The device should protect the motor against single phasing, reverse phasing and unbalance supply. The device should be suitable for any auxillary device and have provisions for mounting in panel boards. Operate without need of any auxiliary supply.
Electric Motor protection device against dry running. The device should protect the motor against Dry running. The device should be suitable for any auxillary device and have provisions for mounting in panel boards. Operate without need of any auxiliary supply
Supply, delivey and fixing of FUSE UNITS (ANCHOR /EQUIVALENT)
63 Amps Porcelain fuse unit (500 V)
100 Amps Porcelain fuse unit (500 V)
200 Amps Porcelain fuse unit (500 V)
Supply, delivey and fixing of CHANGE OVER SWITCHES
100 Amps three phase 500 V 4 pole Change over switch
Supply, delivey and fixing of PVC INSULATED SINGLE CORE MULTI STRAND FIRE RETARDANT FLEXIBLE COPPER CABLE WITH ISI MARK CONFORMING TO IS
Supply, delivey and fixing of HRC - FUSES - HIGHER END
HRC - 16 Amps
HRC - 32 Amps
HRC - 63 Amps
HRC - 125 Amps
Supply and delivery of the following Electrical Works :consumable items at the site of work to carryout the general maintenace works
Voltmeter Digital - Three Phase Class 1-AC
Ammeter Digital - Three Phase Class 1-1A
20W 4 Feet LED Fitting with LED (Higher end)
LED OUTDOOR FITTINGS (LIGHT EMITTING DIODE) LOWER END 25W LED Street Light Fitting with LED
Supply and delivery of the following consumable items for Pump Set repairs at the site of work to carryout the general maintenace works
50mm GM Gate valve
80mm GM Gate valve
R I Sheet
Bolts and Nuts - All sizes
50mm GI Pipe
80mm GI Pipe
Supply, delivery and fixing of DI D/F Gate sluice/scour valves (soft seated) resilient seated soft sealing Gate Valves(Sluice Valves) with body Bonnet of Ductile cast iron of Grade GGG 40 or equivalent grade, Wedge fully rubber lined with EPDM replaceable spindle nut without gland packing and with 3 O- Ring protection on the shaft and seals of NBR and the valves should be of Vacuum tight and 100% leak proof with face to face dimensions as per BS 5163- 89/ISI 14846-2000/DIN 3202 F4. All the valves should be with electrostatic powder coating both inside and out side with pocket less straight through body passage. All the valves are to be compatible for buried application with pressure rating PN 10/16 and with 5 years warranty.
100mm DI Gate Valve
Manufacture, Supply and Delivery of Tamper proof DI single chamber double orifice triple function (ventilating, admiting & ventilating during operation) air release valve with pressure rating PN 10/16 with body and cover made of Ductile Iron of Grade GGG 40 or GGG 50, conforming to IS 1865 with Food Grade Epoxy Powder coating (EP-P) inside and for outside of colour blue RAL 5005. All internal parts such as float, shell etc., cover bolts, made of Austenitic alloy steel of SS AISI 304/316. The float shall be made of Polytetrafluroethylene/ Austenitic alloy steel of AISI 304/316. Gaskets and seals of EPDM / Neoprene rubber for TWAD Board works anywhere in Tamil Nadu and with 5 years warranty
Supply, delivey and fixing of C.I. DOUBLE AIR VALVE AS PER ISI 14845/2000 AND WITH 5 YEARS WARRANTY
50mm CI Air Valve
SUMP CLEANING
Cleaning of all storage points like sumps, elevated reservoirs of various capacities available in this scheme at a frequency of once in two months including scrapping the inner side of compartment completely, scouring / dewatering / desilting using required machineries, materials, labour and all other incidental charges, application of bleaching powder/ solution etc complete.
For 15001 to 30000 lit cap sump
Desilting light or sandysoil or silt from collection well below water level including the charges for special tools & plants and air compressor etc complete
Bleaching powder of 34% concentration as per standard specification.
COMBINED WATER SUPPLY SCHEME TO CHITHATHUR AND 14 OTHER HABITATIONS IN VEMBAKKAM UNION OF TIRUVANNAMALAI DISTRICT
Operation and Maintenance of the Electro Mechanical installations, equipments, components, pipelines valves and appurtenances, water retaining structures including protecton of all schemee components from damages/ theft undertaking legal actions for such untoward incidents, preventive maintenance, disinfection and deliverance of water as per quality standards and supply of earmarked quantity of water to the beneficiaries as per Annexure .........., carrying out the O&M as per standard operating procedures, Acts and rules in force and as directed by TWAD Board Oficers and excluding cost towards attending leak, burst repair and replacement works to electro mechanical installations consumables for disinfection of water, cleaning of all water retaining structure, electricity .
Repair & Renewals and Leak & Bursts :
Attending Leaks in the PVC pipelines of this CWSS for the following items, as per the standard procedure including earthwork excavation, dewatering, removing, relaying, jointing, civil works, cost of materials and all other incidental charges, etc complete within the stipulated time limit as directed by the TWAD Board officers.
PVC 4 KSC Pipes_Minor Leak
63mm OD PVC 4 KSC pipes_Minor Leak
75mm OD PVC 4 KSC pipes_Minor Leak
90mm OD PVC 4 KSC pipes_Minor Leak
110mm OD PVC 4 KSC pipes_Minor Leak
140mm OD PVC 4 KSC pipes_Minor Leak
160mm OD PVC 4 KSC pipes_Minor Leak
PVC 4 KSC Pipes_Major Leak
63mm OD PVC 4 KSC pipes_Major Leak
75mm OD PVC 4 KSC pipes_Major Leak
90mm OD PVC 4 KSC pipes_Major Leak
110mm OD PVC 4 KSC pipes_Major Leak
140mm OD PVC 4 KSC pipes_Major Leak
160mm OD PVC 4 KSC pipes_Major Leak
Attending Leaks/Bursts in the HDPE pipelines of this CWSS for the following items, as per the standard procedure including earthwork excavation, dewatering, removing, relaying, jointing by Electro fusion/butt Joint, civil works, cost of materials and all other incidental charges, etc complete within the stipulated time limit as directed by the TWAD Board officers.
HDPE PN 6 Pipes_Minor Leaks
75mm HDPE PN 6 pipes_Minor Leak
90mm HDPE PN 6 pipes_Minor Leak
110mm HDPE PN 6 pipes_Minor Leak
140mm HDPE PN 6 pipes_Minor Leak
HDPE PN 6 Pipes_Major Leaks
75mm HDPE PN 6 pipes_Major Leak
90mm HDPE PN 6 pipes_Major Leak
110mm HDPE PN 6 pipes_Major Leak
140mm HDPE PN 6 pipes_Major Leak
Attending leaks and bursts in GI pipes of various sizes including Supply and delivery of following G I PIPES (MEDIUM) AS PER IS 1239/PART I/2004 and Lowering GI pipes and specials in the trenches and laying to proper grade and alignment, jointing with GI Specials and as directed by the TWAD Officers
50mm GI Pipe leak above GL
65mm GI Pipe leak above GL
80mm GI Pipe leak above GL
100mm GI Pipe leak above GL
125mm GI Pipe leak above GL
Attending joint (Collar) Leaks in the AC pipelines of this CWSS for the following items, as per the standard procedure including earthwork excavation, dewatering, removing, relaying, jointing, civil works, cost of materials and all incidental charges, etc complete within the stipulated time limit as specified in Clause 2.6.4 of General conditions of Contract
AC Pipe_Collar Leak
150mm AC_Collar Leak
AC Pipe_Minor Leak centre crack
150mm AC Pipe_MS Cut Barrel
Labour for cutting open B.T. Roads (or) Maccadam road for laying water mains - 15 cm thick (SOR VOL II P.195)
For all size Pumping mains
Road Restoration with PCC 1:2:4 using 20 mm HBGS for the Concrete Road cut Portion after the pipes are laid, joined and tested complete and as directed by TWAD Board Officers - 15 cm thick
For all size Pumping mains
MATERIALS
Supply and delivery of following sizes of HDPE PIPES - PE 100 AS PER IS 4984/2016 (Pre-Compounded Resin) inclusive of transportation charges to stockyard excluding unloading anywhere in Tamilnadu etc, complete and as directed by the TWAD Board officers. (SOR VOL II P.14)
160mm HDPE PN 6
140mm HDPE PN 6
125mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
75mm HDPE PN 6
63mm HDPE PN 6
CIVIL WORKS
Earth work excavation and depositing on bank with initial lead of 10 m and initial lift of 2m in narrow trenches for laying of pipes for water supply in the following types of soil
Hard stiff clay, stiff black cotton, hard red earth, shales, murrum gravel, stoney earth and earth mixed with small size boulders and hard gravelly soil. (SOR VOL II P.192)
160mm HDPE PN 6
140mm HDPE PN 6
125mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
75mm HDPE PN 6
63mm HDPE PN 6
Lowering HDPE pipes and specials to trench and laying to proper grade and alignment and as directed by the TWAD Officers. (SOR VOL II P.171)
160mm HDPE PN 6
140mm HDPE PN 6
125mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
75mm HDPE PN 6
63mm HDPE PN 6
Jointing HDPE Pipes and Specials by butt fusion welding / electro fusion welding joints using fusion equipment as per ISO 21307-2011 and as per IS 7634 (part-2) : 2012 including cost of hire charges for butt fusion equipment power supply arrangements etc., complete as per directed by TWAD Board Officers. (SOR VOL II P.184)
160mm HDPE PN 6
140mm HDPE PN 6
125mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
75mm HDPE PN 6
63mm HDPE PN 6
Refiling with excavated sand or other loose soil complying with standerd specification in layers of 15 cm thick well rammed and consolidated after pipes and specials are laid and tested. (SOR VOL II P.192)
160mm HDPE PN 6
140mm HDPE PN 6
125mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
75mm HDPE PN 6
63mm HDPE PN 6
Pumpsets
Carrying out the following repair works occuring during the maintenance period in the Electrical, Mechanical and Elctro-mechanical items to bring back the scheme / components into normal running conditition as per standard specification including all labour charges, cost of materials and all incidental charges within the stipulated time limit etc., complete as specified in Clause 2.8 of General conditions of Contract Part II etc as directed by TWAD Board officers
Attending the Rewinding, Repair and Renewal works in various capacity Open Well Submersible Pumpsets
Removing the Submersible pumpset by using tripod set after disconnecting the power supply cable and delivery pipe line fittings
5HP -OWS
15HP -OWS
Transporting the pumpset from Pump House to work shop.
5HP -OWS
15HP -OWS
Rewinding the submersible motor using best quality winding wire including cost of wire, Sleeve, other insulating and fibre class materials after deducting the cost of old materials.
5HP -OWS
15HP -OWS
Reconditioning the worn-out shaft and fittings, impeller and Gun Metal/ SS Bushes including cost of lath work & labour charges etc.,
5HP -OWS
15HP -OWS
Replacement of carbon type thrust bearing and pumpside Gun Metal Bush including cost of labour charges after deducting the cost of old material
5HP -OWS
15HP -OWS
Transporting charges for Submersible pumpset from work shop to Pump House after attending repair works.
5HP -OWS
15HP -OWS
Re-erection of pumpset in the Sump / Well by using tripod set and required Rubber washer and Bolt & Nuts and connecting the power supply cable and delivery pipeline arrangements testing to trial pumping.
5HP -OWS
15HP -OWS
SUPPLY AND DELIVERY OF SERVICE CONNECTION ACCESSORIES L.T. 1100V PVC ALUMINIUM ARMOURED UNDER GROUND CABLE WITH ISI MARK
25 Sq.mm 3.5 Core
35 Sq.mm 3.5 Core
50 Sq.mm 3.5 Core
SUPPLY AND DELIVERY OF L.T. CABLES following size sq mm 3 CORE 1.1 KV GRADE ARMOURED ALUMINIUM CONDUCTOR CROSS LINKED POLY ETHYLENE INSULATED PVC SHEATHED CABLES CONFORMING TO IS 7098 (PART I)/1988 WITH ISI MARKING
50 Sq.mm 3 Core
70 Sq.mm 3Core
SUPPLY AND DELIVERY OF PVC INSULATED AND SHEATHED following sq mm 3 CORE FLAT TYPE COPPER CABLE CONFORMING TO IS 694/1989
SUPPLY AND DELIVERY OF 150mm dia Pressure Gauge and Vaccum guage including all accessories as per specification (For Suction and Delivery to be mounted on wall on Teak Wood Board)
Supply, delivey and fixing of MOULDED CASE CIRCUIT BREAKER (MCCB) WITH THERMO MAGNETIC RELEASE - 4 Pole
Range - 63/100A
Range - 125A
Supply, delivey and fixing of RATE FOR MIXED DI-ELECTRIC CAPACITOR WITH TNEB TEST CERTIFICATE WITH ACCESSORIES INCLUDING BANKING CONFORMIING TO IS 2834.
Supply, delivey and fixing of Electro magnetic contactors of suitable capacity in AC Three Phase rating, conforming to IS/IEC 60947-4-1.
Supply, delivey and fixing of Overload Relays: Directly operated Bimetallic Thermal overload relay which operates in case of overload and also in case of under voltage with manual and auto reset mode.
Supply, delivey and fixing of Preventer – Single Phasing - Electric Motor protection device against single phasing. The device should protect the motor against single phasing, reverse phasing and unbalance supply. The device should be suitable for any auxillary device and have provisions for mounting in panel boards. Operate without need of any auxiliary supply.
Electric Motor protection device against dry running. The device should protect the motor against Dry running. The device should be suitable for any auxillary device and have provisions for mounting in panel boards. Operate without need of any auxiliary supply
Supply, delivey and fixing of FUSE UNITS (ANCHOR /EQUIVALENT)
63 Amps Porcelain fuse unit (500 V)
100 Amps Porcelain fuse unit (500 V)
200 Amps Porcelain fuse unit (500 V)
Supply, delivey and fixing of CHANGE OVER SWITCHES
100 Amps three phase 500 V 4 pole Change over switch
Supply, delivey and fixing of PVC INSULATED SINGLE CORE MULTI STRAND FIRE RETARDANT FLEXIBLE COPPER CABLE WITH ISI MARK CONFORMING TO IS
Supply, delivey and fixing of HRC - FUSES - HIGHER END
HRC - 16 Amps
HRC - 32 Amps
HRC - 63 Amps
HRC - 125 Amps
Supply and delivery of the following Electrical Works :consumable items at the site of work to carryout the general maintenace works
Voltmeter Digital - Three Phase Class 1-AC
Ammeter Digital - Three Phase Class 1-1A
20W 4 Feet LED Fitting with LED (Higher end)
LED OUTDOOR FITTINGS (LIGHT EMITTING DIODE) LOWER END 25W LED Street Light Fitting with LED
Supply and delivery of the following consumable items for Pump Set repairs at the site of work to carryout the general maintenace works
50mm GM Gate valve
80mm GM Gate valve
R I Sheet
Bolts and Nuts - All sizes
50mm GI Pipe
80mm GI Pipe
100mm GI pipe
Supply, delivey and fixing of C.I. DOUBLE AIR VALVE AS PER ISI 14845/2000 AND WITH 5 YEARS WARRANTY
50mm CI Air Valve
SUMP CLEANING
Cleaning of all storage points like sumps, elevated reservoirs of various capacities available in this scheme at a frequency of once in two months including scrapping the inner side of compartment completely, scouring / dewatering / desilting using required machineries, materials, labour and all other incidental charges, application of bleaching powder/ solution etc complete.
For 15001 to 30000 lit cap sump
Desilting light or sandysoil or silt from collection well below water level including the charges for special tools & plants and air compressor etc complete
Bleaching powder of 34% concentration as per standard specification.
COMBINED WATER SUPPLY SCHEME TO CHITHAMOOR AND 27 OTHER HABITATIONS IN IN ANAKKAVUR UNION OF TIRUVANNAMALAI DISTRICT
Operation and Maintenance of the Electro Mechanical installations, equipments, components, pipelines valves and appurtenances, water retaining structures including protecton of all schemee components from damages/ theft undertaking legal actions for such untoward incidents, preventive maintenance, disinfection and deliverance of water as per quality standards and supply of earmarked quantity of water to the beneficiaries as per Annexure .........., carrying out the O&M as per standard operating procedures, Acts and rules in force and as directed by TWAD Board Oficers and excluding cost towards attending leak, burst repair and replacement works to electro mechanical installations consumables for disinfection of water, cleaning of all water retaining structure, electricity .
Repair & Renewals and Leak & Bursts :
Attending Leaks in the PVC pipelines of this CWSS for the following items, as per the standard procedure including earthwork excavation, dewatering, removing, relaying, jointing, civil works, cost of materials and all other incidental charges, etc complete within the stipulated time limit as directed by the TWAD Board officers.
PVC 4 KSC Pipes_Minor Leak
63mm OD PVC 4 KSC pipes_Minor Leak
75mm OD PVC 4 KSC pipes_Minor Leak
90mm OD PVC 4 KSC pipes_Minor Leak
110mm OD PVC 4 KSC pipes_Minor Leak
140mm OD PVC 4 KSC pipes_Minor Leak
160mm OD PVC 4 KSC pipes_Minor Leak
PVC 4 KSC Pipes_Major Leak
63mm OD PVC 4 KSC pipes_Major Leak
75mm OD PVC 4 KSC pipes_Major Leak
90mm OD PVC 4 KSC pipes_Major Leak
110mm OD PVC 4 KSC pipes_Major Leak
140mm OD PVC 4 KSC pipes_Major Leak
160mm OD PVC 4 KSC pipes_Major Leak
Attending Leaks/Bursts in the HDPE pipelines of this CWSS for the following items, as per the standard procedure including earthwork excavation, dewatering, removing, relaying, jointing by Electro fusion/butt Joint, civil works, cost of materials and all other incidental charges, etc complete within the stipulated time limit as directed by the TWAD Board officers.
HDPE PN 6 Pipes_Minor Leaks
63mm HDPE PN 6 pipes_Minor Leak
HDPE PN 6 Pipes_Major Leaks
63mm HDPE PN 6 pipes_Major Leak
Attending leaks and bursts in GI pipes of various sizes including Supply and delivery of following G I PIPES (MEDIUM) AS PER IS 1239/PART I/2004 and Lowering GI pipes and specials in the trenches and laying to proper grade and alignment, jointing with GI Specials and as directed by the TWAD Officers
50mm GI Pipe leak above GL
65mm GI Pipe leak above GL
80mm GI Pipe leak above GL
100mm GI Pipe leak above GL
Labour for cutting open B.T. Roads (or) Maccadam road for laying water mains - 15 cm thick (SOR VOL II P.195)
For all size Pumping mains
Road Restoration with PCC 1:2:4 using 20 mm HBGS for the Concrete Road cut Portion after the pipes are laid, joined and tested complete and as directed by TWAD Board Officers - 15 cm thick
For all size Pumping mains
MATERIALS
Supply and delivery of following sizes of HDPE PIPES - PE 100 AS PER IS 4984/2016 (Pre-Compounded Resin) inclusive of transportation charges to stockyard excluding unloading anywhere in Tamilnadu etc, complete and as directed by the TWAD Board officers. (SOR VOL II P.14)
160mm HDPE PN 6
140mm HDPE PN 6
125mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
75mm HDPE PN 6
63mm HDPE PN 6
CIVIL WORKS
Earth work excavation and depositing on bank with initial lead of 10 m and initial lift of 2m in narrow trenches for laying of pipes for water supply in the following types of soil
Hard stiff clay, stiff black cotton, hard red earth, shales, murrum gravel, stoney earth and earth mixed with small size boulders and hard gravelly soil. (SOR VOL II P.192)
160mm HDPE PN 6
140mm HDPE PN 6
125mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
75mm HDPE PN 6
63mm HDPE PN 6
Lowering HDPE pipes and specials to trench and laying to proper grade and alignment and as directed by the TWAD Officers. (SOR VOL II P.171)
160mm HDPE PN 6
140mm HDPE PN 6
125mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
75mm HDPE PN 6
63mm HDPE PN 6
Jointing HDPE Pipes and Specials by butt fusion welding / electro fusion welding joints using fusion equipment as per ISO 21307-2011 and as per IS 7634 (part-2) : 2012 including cost of hire charges for butt fusion equipment power supply arrangements etc., complete as per directed by TWAD Board Officers. (SOR VOL II P.184)
160mm HDPE PN 6
140mm HDPE PN 6
125mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
75mm HDPE PN 6
63mm HDPE PN 6
Refiling with excavated sand or other loose soil complying with standerd specification in layers of 15 cm thick well rammed and consolidated after pipes and specials are laid and tested. (SOR VOL II P.192)
160mm HDPE PN 6
140mm HDPE PN 6
125mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
75mm HDPE PN 6
63mm HDPE PN 6
Pumpsets
Carrying out the following repair works occuring during the maintenance period in the Electrical, Mechanical and Elctro-mechanical items to bring back the scheme / components into normal running conditition as per standard specification including all labour charges, cost of materials and all incidental charges within the stipulated time limit etc., complete as specified in Clause 2.8 of General conditions of Contract Part II etc as directed by TWAD Board officers
Attending the Rewinding, Repair and Renewal works in various capacity Open Well Submersible Pumpsets
Removing the Submersible pumpset by using tripod set after disconnecting the power supply cable and delivery pipe line fittings
3HP -OWS
5HP -OWS
7.5HP -OWS
Transporting the pumpset from Pump House to work shop.
3HP -OWS
5HP -OWS
7.5HP -OWS
Rewinding the submersible motor using best quality winding wire including cost of wire, Sleeve, other insulating and fibre class materials after deducting the cost of old materials.
3HP -OWS
5HP -OWS
7.5HP -OWS
Reconditioning the worn-out shaft and fittings, impeller and Gun Metal/ SS Bushes including cost of lath work & labour charges etc.,
3HP -OWS
5HP -OWS
7.5HP -OWS
Replacement of carbon type thrust bearing and pumpside Gun Metal Bush including cost of labour charges after deducting the cost of old material
3HP -OWS
5HP -OWS
7.5HP -OWS
Transporting charges for Submersible pumpset from work shop to Pump House after attending repair works.
3HP -OWS
5HP -OWS
7.5HP -OWS
Re-erection of pumpset in the Sump / Well by using tripod set and required Rubber washer and Bolt & Nuts and connecting the power supply cable and delivery pipeline arrangements testing to trial pumping.
3HP -OWS
5HP -OWS
7.5HP -OWS
SUPPLY AND DELIVERY OF SERVICE CONNECTION ACCESSORIES L.T. 1100V PVC ALUMINIUM ARMOURED UNDER GROUND CABLE WITH ISI MARK
25 Sq.mm 3.5 Core
35 Sq.mm 3.5 Core
50 Sq.mm 3.5 Core
SUPPLY AND DELIVERY OF L.T. CABLES following size sq mm 3 CORE 1.1 KV GRADE ARMOURED ALUMINIUM CONDUCTOR CROSS LINKED POLY ETHYLENE INSULATED PVC SHEATHED CABLES CONFORMING TO IS 7098 (PART I)/1988 WITH ISI MARKING
35 Sq.mm 3 Core
SUPPLY AND DELIVERY OF PVC INSULATED AND SHEATHED following sq mm 3 CORE FLAT TYPE COPPER CABLE CONFORMING TO IS 694/1989
SUPPLY AND DELIVERY OF 150mm dia Pressure Gauge and Vaccum guage including all accessories as per specification (For Suction and Delivery to be mounted on wall on Teak Wood Board)
Supply, delivey and fixing of MOULDED CASE CIRCUIT BREAKER (MCCB) WITH THERMO MAGNETIC RELEASE - 4 Pole
Range - 63/100A
Range - 125A
Supply, delivey and fixing of RATE FOR MIXED DI-ELECTRIC CAPACITOR WITH TNEB TEST CERTIFICATE WITH ACCESSORIES INCLUDING BANKING CONFORMIING TO IS 2834.
Supply, delivey and fixing of Electro magnetic contactors of suitable capacity in AC Three Phase rating, conforming to IS/IEC 60947-4-1.
Supply, delivey and fixing of Overload Relays: Directly operated Bimetallic Thermal overload relay which operates in case of overload and also in case of under voltage with manual and auto reset mode.
Supply, delivey and fixing of Preventer – Single Phasing - Electric Motor protection device against single phasing. The device should protect the motor against single phasing, reverse phasing and unbalance supply. The device should be suitable for any auxillary device and have provisions for mounting in panel boards. Operate without need of any auxiliary supply.
Electric Motor protection device against dry running. The device should protect the motor against Dry running. The device should be suitable for any auxillary device and have provisions for mounting in panel boards. Operate without need of any auxiliary supply
Supply, delivey and fixing of FUSE UNITS (ANCHOR /EQUIVALENT)
63 Amps Porcelain fuse unit (500 V)
100 Amps Porcelain fuse unit (500 V)
200 Amps Porcelain fuse unit (500 V)
Supply, delivey and fixing of CHANGE OVER SWITCHES
16 Amps three phase 500 V 4 pole Change over switch
32 Amps three phase 500 V 4 pole Change over switch
63 Amps three phase 500 V 4 pole Change over switch
100 Amps three phase 500 V 4 pole Change over switch
Supply, delivey and fixing of PVC INSULATED SINGLE CORE MULTI STRAND FIRE RETARDANT FLEXIBLE COPPER CABLE WITH ISI MARK CONFORMING TO IS
Supply, delivey and fixing of HRC - FUSES - HIGHER END
HRC - 16 Amps
HRC - 32 Amps
HRC - 63 Amps
HRC - 125 Amps
Supply and delivery of the following Electrical Works :consumable items at the site of work to carryout the general maintenace works
Voltmeter Digital - Three Phase Class 1-AC
Ammeter Digital - Three Phase Class 1-1A
20W 4 Feet LED Fitting with LED (Higher end)
LED OUTDOOR FITTINGS (LIGHT EMITTING DIODE) LOWER END 25W LED Street Light Fitting with LED
Supply and delivery of the following consumable items for Pump Set repairs at the site of work to carryout the general maintenace works
50mm GM Gate valve
80mm GM Gate valve
R I Sheet
Bolts and Nuts - All sizes
50mm GI Pipe
65mm GI Pipe
80mm GI Pipe
100mm GI pipe
Supply, delivery and fixing of DI D/F Gate sluice/scour valves (soft seated) resilient seated soft sealing Gate Valves(Sluice Valves) with body Bonnet of Ductile cast iron of Grade GGG 40 or equivalent grade, Wedge fully rubber lined with EPDM replaceable spindle nut without gland packing and with 3 O- Ring protection on the shaft and seals of NBR and the valves should be of Vacuum tight and 100% leak proof with face to face dimensions as per BS 5163- 89/ISI 14846-2000/DIN 3202 F4. All the valves should be with electrostatic powder coating both inside and out side with pocket less straight through body passage. All the valves are to be compatible for buried application with pressure rating PN 10/16 and with 5 years warranty.
100mm DI Gate Valve
Supply, delivey and fixing of C.I. DOUBLE AIR VALVE AS PER ISI 14845/2000 AND WITH 5 YEARS WARRANTY
50mm CI Air Valve
SUMP CLEANING
Cleaning of all storage points like sumps, elevated reservoirs of various capacities available in this scheme at a frequency of once in two months including scrapping the inner side of compartment completely, scouring / dewatering / desilting using required machineries, materials, labour and all other incidental charges, application of bleaching powder/ solution etc complete.
For 30001 to 45000 lit cap sump
For 125001 to 150000 lit cap sump
Desilting light or sandysoil or silt from collection well below water level including the charges for special tools & plants and air compressor etc complete
Bleaching powder of 34% concentration as per standard specification.
COMBINED WATER SUPPLY SCHEME TO ERAIYUR AND 10 OTHER HABITATIONS IN CHEYYAR UNION OF TIRUVANNAMALAI DISTRICT
Operation and Maintenance of the Electro Mechanical installations, equipments, components, pipelines valves and appurtenances, water retaining structures including protecton of all schemee components from damages/ theft undertaking legal actions for such untoward incidents, preventive maintenance, disinfection and deliverance of water as per quality standards and supply of earmarked quantity of water to the beneficiaries as per Annexure .........., carrying out the O&M as per standard operating procedures, Acts and rules in force and as directed by TWAD Board Oficers and excluding cost towards attending leak, burst repair and replacement works to electro mechanical installations consumables for disinfection of water, cleaning of all water retaining structure, electricity .
Repair & Renewals and Leak & Bursts :
Attending Leaks in the PVC pipelines of this CWSS for the following items, as per the standard procedure including earthwork excavation, dewatering, removing, relaying, jointing, civil works, cost of materials and all other incidental charges, etc complete within the stipulated time limit as directed by the TWAD Board officers.
PVC 4 KSC Pipes_Minor Leak
90mm OD PVC 4 KSC pipes_Minor Leak
110mm OD PVC 4 KSC pipes_Minor Leak
140mm OD PVC 4 KSC pipes_Minor Leak
PVC 4 KSC Pipes_Major Leak
90mm OD PVC 4 KSC pipes_Major Leak
110mm OD PVC 4 KSC pipes_Major Leak
140mm OD PVC 4 KSC pipes_Major Leak
Attending Leaks/Bursts in the HDPE pipelines of this CWSS for the following items, as per the standard procedure including earthwork excavation, dewatering, removing, relaying, jointing by Electro fusion/butt Joint, civil works, cost of materials and all other incidental charges, etc complete within the stipulated time limit as directed by the TWAD Board officers.
HDPE PN 6 Pipes_Minor Leaks
90mm HDPE PN 6 pipes_Minor Leak
HDPE PN 6 Pipes_Major Leaks
90mm HDPE PN 6 pipes_Major Leak
Attending leaks and bursts in GI pipes of various sizes including Supply and delivery of following G I PIPES (MEDIUM) AS PER IS 1239/PART I/2004 and Lowering GI pipes and specials in the trenches and laying to proper grade and alignment, jointing with GI Specials and as directed by the TWAD Officers
50mm GI Pipe leak above GL
80mm GI Pipe leak above GL
100mm GI Pipe leak above GL
Labour for cutting open B.T. Roads (or) Maccadam road for laying water mains - 15 cm thick (SOR VOL II P.195)
For all size Pumping mains
Road Restoration with PCC 1:2:4 using 20 mm HBGS for the Concrete Road cut Portion after the pipes are laid, joined and tested complete and as directed by TWAD Board Officers - 15 cm thick
For all size Pumping mains
MATERIALS
Supply and delivery of following sizes of HDPE PIPES - PE 100 AS PER IS 4984/2016 (Pre-Compounded Resin) inclusive of transportation charges to stockyard excluding unloading anywhere in Tamilnadu etc, complete and as directed by the TWAD Board officers. (SOR VOL II P.14)
140mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
CIVIL WORKS
Earth work excavation and depositing on bank with initial lead of 10 m and initial lift of 2m in narrow trenches for laying of pipes for water supply in the following types of soil
Hard stiff clay, stiff black cotton, hard red earth, shales, murrum gravel, stoney earth and earth mixed with small size boulders and hard gravelly soil. (SOR VOL II P.192)
140mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
Lowering HDPE pipes and specials to trench and laying to proper grade and alignment and as directed by the TWAD Officers. (SOR VOL II P.171)
140mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
Jointing HDPE Pipes and Specials by butt fusion welding / electro fusion welding joints using fusion equipment as per ISO 21307-2011 and as per IS 7634 (part-2) : 2012 including cost of hire charges for butt fusion equipment power supply arrangements etc., complete as per directed by TWAD Board Officers. (SOR VOL II P.184)
140mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
Refiling with excavated sand or other loose soil complying with standerd specification in layers of 15 cm thick well rammed and consolidated after pipes and specials are laid and tested. (SOR VOL II P.192)
140mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
Pumpsets
Carrying out the following repair works occuring during the maintenance period in the Electrical, Mechanical and Elctro-mechanical items to bring back the scheme / components into normal running conditition as per standard specification including all labour charges, cost of materials and all incidental charges within the stipulated time limit etc., complete as specified in Clause 2.8 of General conditions of Contract Part II etc as directed by TWAD Board officers
Attending the Rewinding, Repair and Renewal works in various capacity Open Well Submersible Pumpsets
Removing the Submersible pumpset by using tripod set after disconnecting the power supply cable and delivery pipe line fittings
3HP -OWS
5HP -OWS
15HP -OWS
Transporting the pumpset from Pump House to work shop.
3HP -OWS
5HP -OWS
15HP -OWS
Rewinding the submersible motor using best quality winding wire including cost of wire, Sleeve, other insulating and fibre class materials after deducting the cost of old materials.
3HP -OWS
5HP -OWS
15HP -OWS
Reconditioning the worn-out shaft and fittings, impeller and Gun Metal/ SS Bushes including cost of lath work & labour charges etc.,
3HP -OWS
5HP -OWS
15HP -OWS
Replacement of carbon type thrust bearing and pumpside Gun Metal Bush including cost of labour charges after deducting the cost of old material
3HP -OWS
5HP -OWS
15HP -OWS
Transporting charges for Submersible pumpset from work shop to Pump House after attending repair works.
3HP -OWS
5HP -OWS
15HP -OWS
Re-erection of pumpset in the Sump / Well by using tripod set and required Rubber washer and Bolt & Nuts and connecting the power supply cable and delivery pipeline arrangements testing to trial pumping.
3HP -OWS
5HP -OWS
15HP -OWS
SUPPLY AND DELIVERY OF SERVICE CONNECTION ACCESSORIES L.T. 1100V PVC ALUMINIUM ARMOURED UNDER GROUND CABLE WITH ISI MARK
25 Sq.mm 3.5 Core
35 Sq.mm 3.5 Core
50 Sq.mm 3.5 Core
SUPPLY AND DELIVERY OF L.T. CABLES following size sq mm 3 CORE 1.1 KV GRADE ARMOURED ALUMINIUM CONDUCTOR CROSS LINKED POLY ETHYLENE INSULATED PVC SHEATHED CABLES CONFORMING TO IS 7098 (PART I)/1988 WITH ISI MARKING
25 Sq.mm 3 Core
35 Sq.mm 3 Core
70 Sq.mm 3Core
SUPPLY AND DELIVERY OF PVC INSULATED AND SHEATHED following sq mm 3 CORE FLAT TYPE COPPER CABLE CONFORMING TO IS 694/1989
SUPPLY AND DELIVERY OF 150mm dia Pressure Gauge and Vaccum guage including all accessories as per specification (For Suction and Delivery to be mounted on wall on Teak Wood Board)
Supply, delivey and fixing of MOULDED CASE CIRCUIT BREAKER (MCCB) WITH THERMO MAGNETIC RELEASE - 4 Pole
Range - 63/100A
Range - 125A
Supply, delivey and fixing of RATE FOR MIXED DI-ELECTRIC CAPACITOR WITH TNEB TEST CERTIFICATE WITH ACCESSORIES INCLUDING BANKING CONFORMIING TO IS 2834.
Supply, delivey and fixing of Electro magnetic contactors of suitable capacity in AC Three Phase rating, conforming to IS/IEC 60947-4-1.
Supply, delivey and fixing of Overload Relays: Directly operated Bimetallic Thermal overload relay which operates in case of overload and also in case of under voltage with manual and auto reset mode.
Supply, delivey and fixing of Preventer – Single Phasing - Electric Motor protection device against single phasing. The device should protect the motor against single phasing, reverse phasing and unbalance supply. The device should be suitable for any auxillary device and have provisions for mounting in panel boards. Operate without need of any auxiliary supply.
Electric Motor protection device against dry running. The device should protect the motor against Dry running. The device should be suitable for any auxillary device and have provisions for mounting in panel boards. Operate without need of any auxiliary supply
Supply, delivey and fixing of FUSE UNITS (ANCHOR /EQUIVALENT)
100 Amps Porcelain fuse unit (500 V)
200 Amps Porcelain fuse unit (500 V)
Supply, delivey and fixing of CHANGE OVER SWITCHES
32 Amps three phase 500 V 4 pole Change over switch
63 Amps three phase 500 V 4 pole Change over switch
100 Amps three phase 500 V 4 pole Change over switch
200 Amps three phase 500 V 4 pole Change over switch
Supply, delivey and fixing of PVC INSULATED SINGLE CORE MULTI STRAND FIRE RETARDANT FLEXIBLE COPPER CABLE WITH ISI MARK CONFORMING TO IS
Supply, delivey and fixing of HRC - FUSES - HIGHER END
HRC - 16 Amps
HRC - 32 Amps
HRC - 63 Amps
HRC - 125 Amps
Supply and delivery of the following Electrical Works :consumable items at the site of work to carryout the general maintenace works
Voltmeter Digital - Three Phase Class 1-AC
Ammeter Digital - Three Phase Class 1-1A
20W 4 Feet LED Fitting with LED (Higher end)
LED OUTDOOR FITTINGS (LIGHT EMITTING DIODE) LOWER END 25W LED Street Light Fitting with LED
Supply and delivery of the following consumable items for Pump Set repairs at the site of work to carryout the general maintenace works
50mm GM Gate valve
80mm GM Gate valve
R I Sheet
Bolts and Nuts - All sizes
50mm GI Pipe
80mm GI Pipe
100mm GI pipe
Supply, delivery and fixing of DI D/F Gate sluice/scour valves (soft seated) resilient seated soft sealing Gate Valves(Sluice Valves) with body Bonnet of Ductile cast iron of Grade GGG 40 or equivalent grade, Wedge fully rubber lined with EPDM replaceable spindle nut without gland packing and with 3 O- Ring protection on the shaft and seals of NBR and the valves should be of Vacuum tight and 100% leak proof with face to face dimensions as per BS 5163- 89/ISI 14846-2000/DIN 3202 F4. All the valves should be with electrostatic powder coating both inside and out side with pocket less straight through body passage. All the valves are to be compatible for buried application with pressure rating PN 10/16 and with 5 years warranty.
100mm DI Gate Valve
Supply, delivey and fixing of C.I. DOUBLE AIR VALVE AS PER ISI 14845/2000 AND WITH 5 YEARS WARRANTY
50mm CI Air Valve
SUMP CLEANING
Cleaning of all storage points like sumps, elevated reservoirs of various capacities available in this scheme at a frequency of once in two months including scrapping the inner side of compartment completely, scouring / dewatering / desilting using required machineries, materials, labour and all other incidental charges, application of bleaching powder/ solution etc complete.
For 5000 to 15000 lit cap sump
For 30001 to 45000 lit cap sump
Desilting light or sandysoil or silt from collection well below water level including the charges for special tools & plants and air compressor etc complete
Bleaching powder of 34% concentration as per standard specification.
COMBINED WATER SUPPLY SCHEME TO KAZHIYUR AND 17 OTHER HABITATIONS IN CHEYYAR UNION OF TIRUVANNAMALAI DISTRICT
Operation and Maintenance of the Electro Mechanical installations, equipments, components, pipelines valves and appurtenances, water retaining structures including protecton of all schemee components from damages/ theft undertaking legal actions for such untoward incidents, preventive maintenance, disinfection and deliverance of water as per quality standards and supply of earmarked quantity of water to the beneficiaries as per Annexure .........., carrying out the O&M as per standard operating procedures, Acts and rules in force and as directed by TWAD Board Oficers and excluding cost towards attending leak, burst repair and replacement works to electro mechanical installations consumables for disinfection of water, cleaning of all water retaining structure, electricity .
Repair & Renewals and Leak & Bursts :
Attending Leaks in the PVC pipelines of this CWSS for the following items, as per the standard procedure including earthwork excavation, dewatering, removing, relaying, jointing, civil works, cost of materials and all other incidental charges, etc complete within the stipulated time limit as directed by the TWAD Board officers.
PVC 4 KSC Pipes_Minor Leak
63mm OD PVC 4 KSC pipes_Minor Leak
75mm OD PVC 4 KSC pipes_Minor Leak
90mm OD PVC 4 KSC pipes_Minor Leak
110mm OD PVC 4 KSC pipes_Minor Leak
140mm OD PVC 4 KSC pipes_Minor Leak
PVC 4 KSC Pipes_Major Leak
63mm OD PVC 4 KSC pipes_Major Leak
75mm OD PVC 4 KSC pipes_Major Leak
90mm OD PVC 4 KSC pipes_Major Leak
110mm OD PVC 4 KSC pipes_Major Leak
140mm OD PVC 4 KSC pipes_Major Leak
Attending Leaks/Bursts in the HDPE pipelines of this CWSS for the following items, as per the standard procedure including earthwork excavation, dewatering, removing, relaying, jointing by Electro fusion/butt Joint, civil works, cost of materials and all other incidental charges, etc complete within the stipulated time limit as directed by the TWAD Board officers.
HDPE PN 6 Pipes_Minor Leaks
75mm HDPE PN 6 pipes_Minor Leak
140mm HDPE PN 6 pipes_Minor Leak
160mm HDPE PN 6 pipes_Minor Leak
HDPE PN 6 Pipes_Major Leaks
75mm HDPE PN 6 pipes_Major Leak
140mm HDPE PN 6 pipes_Major Leak
160mm HDPE PN 6 pipes_Major Leak
Attending leaks and bursts in GI pipes of various sizes including Supply and delivery of following G I PIPES (MEDIUM) AS PER IS 1239/PART I/2004 and Lowering GI pipes and specials in the trenches and laying to proper grade and alignment, jointing with GI Specials and as directed by the TWAD Officers
50mm GI Pipe leak above GL
65mm GI Pipe leak above GL
80mm GI Pipe leak above GL
100mm GI Pipe leak above GL
Attending joint (Collar) Leaks in the AC pipelines of this CWSS for the following items, as per the standard procedure including earthwork excavation, dewatering, removing, relaying, jointing, civil works, cost of materials and all incidental charges, etc complete within the stipulated time limit as specified in Clause 2.6.4 of General conditions of Contract
AC Pipe_Collar Leak
150mm AC_Collar Leak
AC Pipe_Minor Leak centre crack
150mm AC Pipe_MS Cut Barrel
Labour for cutting open B.T. Roads (or) Maccadam road for laying water mains - 15 cm thick (SOR VOL II P.195)
For all size Pumping mains
Road Restoration with PCC 1:2:4 using 20 mm HBGS for the Concrete Road cut Portion after the pipes are laid, joined and tested complete and as directed by TWAD Board Officers - 15 cm thick
For all size Pumping mains
MATERIALS
Supply and delivery of following sizes of HDPE PIPES - PE 100 AS PER IS 4984/2016 (Pre-Compounded Resin) inclusive of transportation charges to stockyard excluding unloading anywhere in Tamilnadu etc, complete and as directed by the TWAD Board officers. (SOR VOL II P.14)
160mm HDPE PN 6
140mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
75mm HDPE PN 6
63mm HDPE PN 6
CIVIL WORKS
Earth work excavation and depositing on bank with initial lead of 10 m and initial lift of 2m in narrow trenches for laying of pipes for water supply in the following types of soil
Hard stiff clay, stiff black cotton, hard red earth, shales, murrum gravel, stoney earth and earth mixed with small size boulders and hard gravelly soil. (SOR VOL II P.192)
160mm HDPE PN 6
140mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
75mm HDPE PN 6
63mm HDPE PN 6
Lowering HDPE pipes and specials to trench and laying to proper grade and alignment and as directed by the TWAD Officers. (SOR VOL II P.171)
160mm HDPE PN 6
140mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
75mm HDPE PN 6
63mm HDPE PN 6
Jointing HDPE Pipes and Specials by butt fusion welding / electro fusion welding joints using fusion equipment as per ISO 21307-2011 and as per IS 7634 (part-2) : 2012 including cost of hire charges for butt fusion equipment power supply arrangements etc., complete as per directed by TWAD Board Officers. (SOR VOL II P.184)
160mm HDPE PN 6
140mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
75mm HDPE PN 6
63mm HDPE PN 6
Refiling with excavated sand or other loose soil complying with standerd specification in layers of 15 cm thick well rammed and consolidated after pipes and specials are laid and tested. (SOR VOL II P.192)
160mm HDPE PN 6
140mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
75mm HDPE PN 6
63mm HDPE PN 6
Pumpsets
Carrying out the following repair works occuring during the maintenance period in the Electrical, Mechanical and Elctro-mechanical items to bring back the scheme / components into normal running conditition as per standard specification including all labour charges, cost of materials and all incidental charges within the stipulated time limit etc., complete as specified in Clause 2.8 of General conditions of Contract Part II etc as directed by TWAD Board officers
Attending the Rewinding, Repair and Renewal works in various capacity Open Well Submersible Pumpsets
Removing the Submersible pumpset by using tripod set after disconnecting the power supply cable and delivery pipe line fittings
3HP -OWS
10HP -OWS
20HP -OWS
Transporting the pumpset from Pump House to work shop.
3HP -OWS
10HP -OWS
20HP -OWS
Rewinding the submersible motor using best quality winding wire including cost of wire, Sleeve, other insulating and fibre class materials after deducting the cost of old materials.
3HP -OWS
10HP -OWS
20HP -OWS
Reconditioning the worn-out shaft and fittings, impeller and Gun Metal/ SS Bushes including cost of lath work & labour charges etc.,
3HP -OWS
10HP -OWS
20HP -OWS
Replacement of carbon type thrust bearing and pumpside Gun Metal Bush including cost of labour charges after deducting the cost of old material
3HP -OWS
10HP -OWS
20HP -OWS
Transporting charges for Submersible pumpset from work shop to Pump House after attending repair works.
3HP -OWS
10HP -OWS
20HP -OWS
Re-erection of pumpset in the Sump / Well by using tripod set and required Rubber washer and Bolt & Nuts and connecting the power supply cable and delivery pipeline arrangements testing to trial pumping.
3HP -OWS
10HP -OWS
20HP -OWS
SUPPLY AND DELIVERY OF SERVICE CONNECTION ACCESSORIES L.T. 1100V PVC ALUMINIUM ARMOURED UNDER GROUND CABLE WITH ISI MARK
25 Sq.mm 3.5 Core
35 Sq.mm 3.5 Core
50 Sq.mm 3.5 Core
SUPPLY AND DELIVERY OF L.T. CABLES following size sq mm 3 CORE 1.1 KV GRADE ARMOURED ALUMINIUM CONDUCTOR CROSS LINKED POLY ETHYLENE INSULATED PVC SHEATHED CABLES CONFORMING TO IS 7098 (PART I)/1988 WITH ISI MARKING
25 Sq.mm 3 Core
50 Sq.mm 3 Core
SUPPLY AND DELIVERY OF PVC INSULATED AND SHEATHED following sq mm 3 CORE FLAT TYPE COPPER CABLE CONFORMING TO IS 694/1989
SUPPLY AND DELIVERY OF 150mm dia Pressure Gauge and Vaccum guage including all accessories as per specification (For Suction and Delivery to be mounted on wall on Teak Wood Board)
Supply, delivey and fixing of MOULDED CASE CIRCUIT BREAKER (MCCB) WITH THERMO MAGNETIC RELEASE - 4 Pole
Range - 63/100A
Range - 125A
Supply, delivey and fixing of RATE FOR MIXED DI-ELECTRIC CAPACITOR WITH TNEB TEST CERTIFICATE WITH ACCESSORIES INCLUDING BANKING CONFORMIING TO IS 2834.
Supply, delivey and fixing of Electro magnetic contactors of suitable capacity in AC Three Phase rating, conforming to IS/IEC 60947-4-1.
Supply, delivey and fixing of Overload Relays: Directly operated Bimetallic Thermal overload relay which operates in case of overload and also in case of under voltage with manual and auto reset mode.
Supply, delivey and fixing of Preventer – Single Phasing - Electric Motor protection device against single phasing. The device should protect the motor against single phasing, reverse phasing and unbalance supply. The device should be suitable for any auxillary device and have provisions for mounting in panel boards. Operate without need of any auxiliary supply.
Electric Motor protection device against dry running. The device should protect the motor against Dry running. The device should be suitable for any auxillary device and have provisions for mounting in panel boards. Operate without need of any auxiliary supply
Supply, delivey and fixing of FUSE UNITS (ANCHOR /EQUIVALENT)
63 Amps Porcelain fuse unit (500 V)
100 Amps Porcelain fuse unit (500 V)
200 Amps Porcelain fuse unit (500 V)
Supply, delivey and fixing of CHANGE OVER SWITCHES
100 Amps three phase 500 V 4 pole Change over switch
Supply, delivey and fixing of PVC INSULATED SINGLE CORE MULTI STRAND FIRE RETARDANT FLEXIBLE COPPER CABLE WITH ISI MARK CONFORMING TO IS
Supply, delivey and fixing of HRC - FUSES - HIGHER END
HRC - 16 Amps
HRC - 32 Amps
HRC - 63 Amps
HRC - 125 Amps
Supply and delivery of the following Electrical Works :consumable items at the site of work to carryout the general maintenace works
Voltmeter Digital - Three Phase Class 1-AC
Ammeter Digital - Three Phase Class 1-1A
20W 4 Feet LED Fitting with LED (Higher end)
LED OUTDOOR FITTINGS (LIGHT EMITTING DIODE) LOWER END 25W LED Street Light Fitting with LED
Supply and delivery of the following consumable items for Pump Set repairs at the site of work to carryout the general maintenace works
50mm GM Gate valve
80mm GM Gate valve
R I Sheet
Bolts and Nuts - All sizes
50mm GI Pipe
80mm GI Pipe
100mm GI pipe
Supply, delivery and fixing of DI D/F Gate sluice/scour valves (soft seated) resilient seated soft sealing Gate Valves(Sluice Valves) with body Bonnet of Ductile cast iron of Grade GGG 40 or equivalent grade, Wedge fully rubber lined with EPDM replaceable spindle nut without gland packing and with 3 O- Ring protection on the shaft and seals of NBR and the valves should be of Vacuum tight and 100% leak proof with face to face dimensions as per BS 5163- 89/ISI 14846-2000/DIN 3202 F4. All the valves should be with electrostatic powder coating both inside and out side with pocket less straight through body passage. All the valves are to be compatible for buried application with pressure rating PN 10/16 and with 5 years warranty.
100mm DI Gate Valve
Supply, delivey and fixing of C.I. DOUBLE AIR VALVE AS PER ISI 14845/2000 AND WITH 5 YEARS WARRANTY
50mm CI Air Valve
SUMP CLEANING
Cleaning of all storage points like sumps, elevated reservoirs of various capacities available in this scheme at a frequency of once in two months including scrapping the inner side of compartment completely, scouring / dewatering / desilting using required machineries, materials, labour and all other incidental charges, application of bleaching powder/ solution etc complete.
For 5000 to 15000 lit cap sump
For 15001 to 30000 lit cap sump
Desilting light or sandysoil or silt from collection well below water level including the charges for special tools & plants and air compressor etc complete
Bleaching powder of 34% concentration as per standard specification.
COMBINED WATER SUPPLY SCHEME TO MENALUR H AND 10 OTHER HABITATIONS IN VEMBAKKAM UNION OF TIRUVANNAMALAI DISTRICT
Operation and Maintenance of the Electro Mechanical installations, equipments, components, pipelines valves and appurtenances, water retaining structures including protecton of all schemee components from damages/ theft undertaking legal actions for such untoward incidents, preventive maintenance, disinfection and deliverance of water as per quality standards and supply of earmarked quantity of water to the beneficiaries as per Annexure .........., carrying out the O&M as per standard operating procedures, Acts and rules in force and as directed by TWAD Board Oficers and excluding cost towards attending leak, burst repair and replacement works to electro mechanical installations consumables for disinfection of water, cleaning of all water retaining structure, electricity .
Repair & Renewals and Leak & Bursts :
Attending Leaks in the PVC pipelines of this CWSS for the following items, as per the standard procedure including earthwork excavation, dewatering, removing, relaying, jointing, civil works, cost of materials and all other incidental charges, etc complete within the stipulated time limit as directed by the TWAD Board officers.
PVC 4 KSC Pipes_Minor Leak
90mm OD PVC 4 KSC pipes_Minor Leak
110mm OD PVC 4 KSC pipes_Minor Leak
160mm OD PVC 4 KSC pipes_Minor Leak
PVC 4 KSC Pipes_Major Leak
90mm OD PVC 4 KSC pipes_Major Leak
110mm OD PVC 4 KSC pipes_Major Leak
160mm OD PVC 4 KSC pipes_Major Leak
PVC 6 KSC Pipes_Minor Leak
90mm OD PVC 6 KSC pipes_Minor Leak
110mm OD PVC 6 KSC pipes_Minor Leak
160mm OD PVC 6 KSC pipes_Minor Leak
PVC 6 KSC Pipes_Major Leak
90mm OD PVC 6 KSC pipes_Major Leak
110mm OD PVC 6 KSC pipes_Major Leak
160mm OD PVC 6 KSC pipes_Major Leak
Attending Leaks/Bursts in the HDPE pipelines of this CWSS for the following items, as per the standard procedure including earthwork excavation, dewatering, removing, relaying, jointing by Electro fusion/butt Joint, civil works, cost of materials and all other incidental charges, etc complete within the stipulated time limit as directed by the TWAD Board officers.
HDPE PN 6 Pipes_Minor Leaks
90mm HDPE PN 6 pipes_Minor Leak
160mm HDPE PN 6 pipes_Minor Leak
HDPE PN 6 Pipes_Major Leaks
90mm HDPE PN 6 pipes_Major Leak
160mm HDPE PN 6 pipes_Major Leak
Attending leaks and bursts in GI pipes of various sizes including Supply and delivery of following G I PIPES (MEDIUM) AS PER IS 1239/PART I/2004 and Lowering GI pipes and specials in the trenches and laying to proper grade and alignment, jointing with GI Specials and as directed by the TWAD Officers
50mm GI Pipe leak above GL
65mm GI Pipe leak above GL
80mm GI Pipe leak above GL
100mm GI Pipe leak above GL
125mm GI Pipe leak above GL
150mm GI Pipe leak above GL
Attending joint (Collar) Leaks in the AC pipelines of this CWSS for the following items, as per the standard procedure including earthwork excavation, dewatering, removing, relaying, jointing, civil works, cost of materials and all incidental charges, etc complete within the stipulated time limit as specified in Clause 2.6.4 of General conditions of Contract
AC Pipe_Collar Leak
150mm AC_Collar Leak
AC Pipe_Minor Leak centre crack
150mm AC Pipe_MS Cut Barrel
Attending Leaks/Bursts in the DI pipelines of this CWSS for the following items, as per the standard procedure including earthwork excavation, dewatering, removing, relaying, jointing, civil works, cost of materials and all incidental charges, etc complete within the stipulated time limit as specified in Clause 2.6.4 of General conditions of Contract
DI Pipes_Minor Leak
150mm DI pipes - Minor leak
DI Pipes_Major Leak
150mm DI pipes - Major leak
Labour for cutting open B.T. Roads (or) Maccadam road for laying water mains - 15 cm thick (SOR VOL II P.195)
For all size Pumping mains
Road Restoration with PCC 1:2:4 using 20 mm HBGS for the Concrete Road cut Portion after the pipes are laid, joined and tested complete and as directed by TWAD Board Officers - 15 cm thick
For all size Pumping mains
MATERIALS
Supply and delivery of following sizes of HDPE PIPES - PE 100 AS PER IS 4984/2016 (Pre-Compounded Resin) inclusive of transportation charges to stockyard excluding unloading anywhere in Tamilnadu etc, complete and as directed by the TWAD Board officers. (SOR VOL II P.14)
160mm HDPE PN 6
125mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
CIVIL WORKS
Earth work excavation and depositing on bank with initial lead of 10 m and initial lift of 2m in narrow trenches for laying of pipes for water supply in the following types of soil
Hard stiff clay, stiff black cotton, hard red earth, shales, murrum gravel, stoney earth and earth mixed with small size boulders and hard gravelly soil. (SOR VOL II P.192)
160mm HDPE PN 6
140mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
Lowering HDPE pipes and specials to trench and laying to proper grade and alignment and as directed by the TWAD Officers. (SOR VOL II P.171)
160mm HDPE PN 6
125mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
Jointing HDPE Pipes and Specials by butt fusion welding / electro fusion welding joints using fusion equipment as per ISO 21307-2011 and as per IS 7634 (part-2) : 2012 including cost of hire charges for butt fusion equipment power supply arrangements etc., complete as per directed by TWAD Board Officers. (SOR VOL II P.184)
160mm HDPE PN 6
125mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
Refiling with excavated sand or other loose soil complying with standerd specification in layers of 15 cm thick well rammed and consolidated after pipes and specials are laid and tested. (SOR VOL II P.192)
160mm HDPE PN 6
125mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
Pumpsets
Carrying out the following repair works occuring during the maintenance period in the Electrical, Mechanical and Elctro-mechanical items to bring back the scheme / components into normal running conditition as per standard specification including all labour charges, cost of materials and all incidental charges within the stipulated time limit etc., complete as specified in Clause 2.8 of General conditions of Contract Part II etc as directed by TWAD Board officers
Attending the Rewinding, Repair and Renewal works in various capacity Open Well Submersible Pumpsets
Removing the Submersible pumpset by using tripod set after disconnecting the power supply cable and delivery pipe line fittings
3HP -OWS
5HP -OWS
7.5HP -OWS
10HP -OWS
12.50HP -OWS
Transporting the pumpset from Pump House to work shop.
3HP -OWS
5HP -OWS
7.5HP -OWS
10HP -OWS
12.50HP -OWS
Rewinding the submersible motor using best quality winding wire including cost of wire, Sleeve, other insulating and fibre class materials after deducting the cost of old materials.
3HP -OWS
5HP -OWS
7.5HP -OWS
10HP -OWS
12.50HP -OWS
Reconditioning the worn-out shaft and fittings, impeller and Gun Metal/ SS Bushes including cost of lath work & labour charges etc.,
3HP -OWS
5HP -OWS
7.5HP -OWS
10HP -OWS
12.50HP -OWS
Replacement of carbon type thrust bearing and pumpside Gun Metal Bush including cost of labour charges after deducting the cost of old material
3HP -OWS
5HP -OWS
7.5HP -OWS
10HP -OWS
12.50HP -OWS
Transporting charges for Submersible pumpset from work shop to Pump House after attending repair works.
3HP -OWS
5HP -OWS
7.5HP -OWS
10HP -OWS
12.50HP -OWS
Re-erection of pumpset in the Sump / Well by using tripod set and required Rubber washer and Bolt & Nuts and connecting the power supply cable and delivery pipeline arrangements testing to trial pumping.
3HP -OWS
5HP -OWS
7.5HP -OWS
10HP -OWS
12.50HP -OWS
SUPPLY AND DELIVERY OF SERVICE CONNECTION ACCESSORIES L.T. 1100V PVC ALUMINIUM ARMOURED UNDER GROUND CABLE WITH ISI MARK
25 Sq.mm 3.5 Core
35 Sq.mm 3.5 Core
50 Sq.mm 3.5 Core
SUPPLY AND DELIVERY OF L.T. CABLES following size sq mm 3 CORE 1.1 KV GRADE ARMOURED ALUMINIUM CONDUCTOR CROSS LINKED POLY ETHYLENE INSULATED PVC SHEATHED CABLES CONFORMING TO IS 7098 (PART I)/1988 WITH ISI MARKING
50 Sq.mm 3 Core
SUPPLY AND DELIVERY OF PVC INSULATED AND SHEATHED following sq mm 3 CORE FLAT TYPE COPPER CABLE CONFORMING TO IS 694/1989
SUPPLY AND DELIVERY OF 150mm dia Pressure Gauge and Vaccum guage including all accessories as per specification (For Suction and Delivery to be mounted on wall on Teak Wood Board)
Supply, delivey and fixing of MOULDED CASE CIRCUIT BREAKER (MCCB) WITH THERMO MAGNETIC RELEASE - 4 Pole
Range - 63/100A
Supply, delivey and fixing of RATE FOR MIXED DI-ELECTRIC CAPACITOR WITH TNEB TEST CERTIFICATE WITH ACCESSORIES INCLUDING BANKING CONFORMIING TO IS 2834.
Supply, delivey and fixing of Electro magnetic contactors of suitable capacity in AC Three Phase rating, conforming to IS/IEC 60947-4-1.
Supply, delivey and fixing of Overload Relays: Directly operated Bimetallic Thermal overload relay which operates in case of overload and also in case of under voltage with manual and auto reset mode.
Supply, delivey and fixing of Preventer – Single Phasing - Electric Motor protection device against single phasing. The device should protect the motor against single phasing, reverse phasing and unbalance supply. The device should be suitable for any auxillary device and have provisions for mounting in panel boards. Operate without need of any auxiliary supply.
Electric Motor protection device against dry running. The device should protect the motor against Dry running. The device should be suitable for any auxillary device and have provisions for mounting in panel boards. Operate without need of any auxiliary supply
Supply, delivey and fixing of FUSE UNITS (ANCHOR /EQUIVALENT)
63 Amps Porcelain fuse unit (500 V)
100 Amps Porcelain fuse unit (500 V)
200 Amps Porcelain fuse unit (500 V)
Supply, delivey and fixing of CHANGE OVER SWITCHES
16 Amps three phase 500 V 4 pole Change over switch
32 Amps three phase 500 V 4 pole Change over switch
63 Amps three phase 500 V 4 pole Change over switch
100 Amps three phase 500 V 4 pole Change over switch
Supply, delivey and fixing of PVC INSULATED SINGLE CORE MULTI STRAND FIRE RETARDANT FLEXIBLE COPPER CABLE WITH ISI MARK CONFORMING TO IS
Supply, delivey and fixing of HRC - FUSES - HIGHER END
HRC - 16 Amps
HRC - 32 Amps
HRC - 63 Amps
HRC - 125 Amps
Supply and delivery of the following Electrical Works :consumable items at the site of work to carryout the general maintenace works
Voltmeter Digital - Three Phase Class 1-AC
Ammeter Digital - Three Phase Class 1-1A
20W 4 Feet LED Fitting with LED (Higher end)
LED OUTDOOR FITTINGS (LIGHT EMITTING DIODE) LOWER END 25W LED Street Light Fitting with LED
Supply and delivery of the following consumable items for Pump Set repairs at the site of work to carryout the general maintenace works
50mm GM Gate valve
80mm GM Gate valve
R I Sheet
Bolts and Nuts - All sizes
50mm GI Pipe
80mm GI Pipe
100mm GI pipe
Supply, delivery and fixing of DI D/F Gate sluice/scour valves (soft seated) resilient seated soft sealing Gate Valves(Sluice Valves) with body Bonnet of Ductile cast iron of Grade GGG 40 or equivalent grade, Wedge fully rubber lined with EPDM replaceable spindle nut without gland packing and with 3 O- Ring protection on the shaft and seals of NBR and the valves should be of Vacuum tight and 100% leak proof with face to face dimensions as per BS 5163- 89/ISI 14846-2000/DIN 3202 F4. All the valves should be with electrostatic powder coating both inside and out side with pocket less straight through body passage. All the valves are to be compatible for buried application with pressure rating PN 10/16 and with 5 years warranty.
150mm DI Gate Valve
Supply, delivey and fixing of C.I. DOUBLE AIR VALVE AS PER ISI 14845/2000 AND WITH 5 YEARS WARRANTY
50mm CI Air Valve
SUMP CLEANING
Cleaning of all storage points like sumps, elevated reservoirs of various capacities available in this scheme at a frequency of once in two months including scrapping the inner side of compartment completely, scouring / dewatering / desilting using required machineries, materials, labour and all other incidental charges, application of bleaching powder/ solution etc complete.
For 15001 to 30000 lit cap sump
Desilting light or sandysoil or silt from collection well below water level including the charges for special tools & plants and air compressor etc complete
Provision for replacement of existing pipelines which are damaged due to widening of SH, NH and NHAI Roads and other line departments
MATERIALS
Supply and delivery of following sizes of HDPE PIPES - PE 100 AS PER IS 4984/2016 (Pre-Compounded Resin) inclusive of transportation charges to stockyard excluding unloading anywhere in Tamilnadu etc, complete and as directed by the TWAD Board officers. (SOR VOL II P.14)
160mm HDPE PN 6
125mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
CIVIL WORKS
Earth work excavation and depositing on bank with initial lead of 10 m and initial lift of 2m in narrow trenches for laying of pipes for water supply in the following types of soil
Hard stiff clay, stiff black cotton, hard red earth, shales, murrum gravel, stoney earth and earth mixed with small size boulders and hard gravelly soil. (SOR VOL II P.192)
160mm HDPE PN 6
140mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
Lowering HDPE pipes and specials to trench and laying to proper grade and alignment and as directed by the TWAD Officers. (SOR VOL II P.171)
160mm HDPE PN 6
125mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
Jointing HDPE Pipes and Specials by butt fusion welding / electro fusion welding joints using fusion equipment as per ISO 21307-2011 and as per IS 7634 (part-2) : 2012 including cost of hire charges for butt fusion equipment power supply arrangements etc., complete as per directed by TWAD Board Officers. (SOR VOL II P.184)
160mm HDPE PN 6
125mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
Refiling with excavated sand or other loose soil complying with standerd specification in layers of 15 cm thick well rammed and consolidated after pipes and specials are laid and tested. (SOR VOL II P.192)
160mm HDPE PN 6
125mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
Bleaching powder of 34% concentration as per standard specification.
COMBINED WATER SUPPLY SCHEME TO PARASUR AND 13 OTHER HABITATIONS IN ANAKKAVUR & CHEYYAR UNION OF TIRUVANNAMALAI DISTRICT
Attending Leaks in the PVC pipelines of this CWSS for the following items, as per the standard procedure including earthwork excavation, dewatering, removing, relaying, jointing, civil works, cost of materials and all other incidental charges, etc complete within the stipulated time limit as directed by the TWAD Board officers.
PVC 4 KSC Pipes_Minor Leak
63mm OD PVC 4 KSC pipes_Minor Leak
75mm OD PVC 4 KSC pipes_Minor Leak
90mm OD PVC 4 KSC pipes_Minor Leak
110mm OD PVC 4 KSC pipes_Minor Leak
140mm OD PVC 4 KSC pipes_Minor Leak
160mm OD PVC 4 KSC pipes_Minor Leak
PVC 4 KSC Pipes_Major Leak
63mm OD PVC 4 KSC pipes_Major Leak
75mm OD PVC 4 KSC pipes_Major Leak
90mm OD PVC 4 KSC pipes_Major Leak
110mm OD PVC 4 KSC pipes_Major Leak
140mm OD PVC 4 KSC pipes_Major Leak
160mm OD PVC 4 KSC pipes_Major Leak
Attending Leaks/Bursts in the HDPE pipelines of this CWSS for the following items, as per the standard procedure including earthwork excavation, dewatering, removing, relaying, jointing by Electro fusion/butt Joint, civil works, cost of materials and all other incidental charges, etc complete within the stipulated time limit as directed by the TWAD Board officers.
HDPE PN 6 Pipes_Minor Leaks
90mm HDPE PN 6 pipes_Minor Leak
110mm HDPE PN 6 pipes_Minor Leak
HDPE PN 6 Pipes_Major Leaks
90mm HDPE PN 6 pipes_Major Leak
110mm HDPE PN 6 pipes_Major Leak
Attending leaks and bursts in GI pipes of various sizes including Supply and delivery of following G I PIPES (MEDIUM) AS PER IS 1239/PART I/2004 and Lowering GI pipes and specials in the trenches and laying to proper grade and alignment, jointing with GI Specials and as directed by the TWAD Officers
50mm GI Pipe leak above GL
80mm GI Pipe leak above GL
100mm GI Pipe leak above GL
Labour for cutting open B.T. Roads (or) Maccadam road for laying water mains - 15 cm thick (SOR VOL II P.195)
For all size Pumping mains
Road Restoration with PCC 1:2:4 using 20 mm HBGS for the Concrete Road cut Portion after the pipes are laid, joined and tested complete and as directed by TWAD Board Officers - 15 cm thick
For all size Pumping mains
MATERIALS
Supply and delivery of following sizes of HDPE PIPES - PE 100 AS PER IS 4984/2016 (Pre-Compounded Resin) inclusive of transportation charges to stockyard excluding unloading anywhere in Tamilnadu etc, complete and as directed by the TWAD Board officers. (SOR VOL II P.14)
160mm HDPE PN 6
140mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
75mm HDPE PN 6
63mm HDPE PN 6
CIVIL WORKS
Earth work excavation and depositing on bank with initial lead of 10 m and initial lift of 2m in narrow trenches for laying of pipes for water supply in the following types of soil
Hard stiff clay, stiff black cotton, hard red earth, shales, murrum gravel, stoney earth and earth mixed with small size boulders and hard gravelly soil. (SOR VOL II P.192)
160mm HDPE PN 6
140mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
75mm HDPE PN 6
63mm HDPE PN 6
Lowering HDPE pipes and specials to trench and laying to proper grade and alignment and as directed by the TWAD Officers. (SOR VOL II P.171)
160mm HDPE PN 6
140mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
75mm HDPE PN 6
63mm HDPE PN 6
Jointing HDPE Pipes and Specials by butt fusion welding / electro fusion welding joints using fusion equipment as per ISO 21307-2011 and as per IS 7634 (part-2) : 2012 including cost of hire charges for butt fusion equipment power supply arrangements etc., complete as per directed by TWAD Board Officers. (SOR VOL II P.184)
160mm HDPE PN 6
140mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
75mm HDPE PN 6
63mm HDPE PN 6
Refiling with excavated sand or other loose soil complying with standerd specification in layers of 15 cm thick well rammed and consolidated after pipes and specials are laid and tested. (SOR VOL II P.192)
160mm HDPE PN 6
140mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
75mm HDPE PN 6
63mm HDPE PN 6
Pumpsets
Carrying out the following repair works occuring during the maintenance period in the Electrical, Mechanical and Elctro-mechanical items to bring back the scheme / components into normal running conditition as per standard specification including all labour charges, cost of materials and all incidental charges within the stipulated time limit etc., complete as specified in Clause 2.8 of General conditions of Contract Part II etc as directed by TWAD Board officers
Attending the Rewinding, Repair and Renewal works in various capacity Open Well Submersible Pumpsets
Removing the Submersible pumpset by using tripod set after disconnecting the power supply cable and delivery pipe line fittings
15HP -OWS
Transporting the pumpset from Pump House to work shop.
15HP -OWS
Rewinding the submersible motor using best quality winding wire including cost of wire, Sleeve, other insulating and fibre class materials after deducting the cost of old materials.
15HP -OWS
Reconditioning the worn-out shaft and fittings, impeller and Gun Metal/ SS Bushes including cost of lath work & labour charges etc.,
15HP -OWS
Replacement of carbon type thrust bearing and pumpside Gun Metal Bush including cost of labour charges after deducting the cost of old material
15HP -OWS
Transporting charges for Submersible pumpset from work shop to Pump House after attending repair works.
15HP -OWS
Re-erection of pumpset in the Sump / Well by using tripod set and required Rubber washer and Bolt & Nuts and connecting the power supply cable and delivery pipeline arrangements testing to trial pumping.
15HP -OWS
SUPPLY AND DELIVERY OF SERVICE CONNECTION ACCESSORIES L.T. 1100V PVC ALUMINIUM ARMOURED UNDER GROUND CABLE WITH ISI MARK
25 Sq.mm 3.5 Core
35 Sq.mm 3.5 Core
50 Sq.mm 3.5 Core
SUPPLY AND DELIVERY OF L.T. CABLES following size sq mm 3 CORE 1.1 KV GRADE ARMOURED ALUMINIUM CONDUCTOR CROSS LINKED POLY ETHYLENE INSULATED PVC SHEATHED CABLES CONFORMING TO IS 7098 (PART I)/1988 WITH ISI MARKING
50 Sq.mm 3 Core
SUPPLY AND DELIVERY OF PVC INSULATED AND SHEATHED following sq mm 3 CORE FLAT TYPE COPPER CABLE CONFORMING TO IS 694/1989
SUPPLY AND DELIVERY OF 150mm dia Pressure Gauge and Vaccum guage including all accessories as per specification (For Suction and Delivery to be mounted on wall on Teak Wood Board)
Supply, delivey and fixing of MOULDED CASE CIRCUIT BREAKER (MCCB) WITH THERMO MAGNETIC RELEASE - 4 Pole
Range - 63/100A
Supply, delivey and fixing of RATE FOR MIXED DI-ELECTRIC CAPACITOR WITH TNEB TEST CERTIFICATE WITH ACCESSORIES INCLUDING BANKING CONFORMIING TO IS 2834.
Supply, delivey and fixing of Electro magnetic contactors of suitable capacity in AC Three Phase rating, conforming to IS/IEC 60947-4-1.
Supply, delivey and fixing of Overload Relays: Directly operated Bimetallic Thermal overload relay which operates in case of overload and also in case of under voltage with manual and auto reset mode.
Supply, delivey and fixing of Preventer – Single Phasing - Electric Motor protection device against single phasing. The device should protect the motor against single phasing, reverse phasing and unbalance supply. The device should be suitable for any auxillary device and have provisions for mounting in panel boards. Operate without need of any auxiliary supply.
Electric Motor protection device against dry running. The device should protect the motor against Dry running. The device should be suitable for any auxillary device and have provisions for mounting in panel boards. Operate without need of any auxiliary supply
Supply, delivey and fixing of FUSE UNITS (ANCHOR /EQUIVALENT)
100 Amps Porcelain fuse unit (500 V)
Supply, delivey and fixing of CHANGE OVER SWITCHES
100 Amps three phase 500 V 4 pole Change over switch
Supply, delivey and fixing of PVC INSULATED SINGLE CORE MULTI STRAND FIRE RETARDANT FLEXIBLE COPPER CABLE WITH ISI MARK CONFORMING TO IS
Supply, delivey and fixing of HRC - FUSES - HIGHER END
HRC - 125 Amps
Supply and delivery of the following Electrical Works :consumable items at the site of work to carryout the general maintenace works
Voltmeter Digital - Three Phase Class 1-AC
Ammeter Digital - Three Phase Class 1-1A
20W 4 Feet LED Fitting with LED (Higher end)
LED OUTDOOR FITTINGS (LIGHT EMITTING DIODE) LOWER END 25W LED Street Light Fitting with LED
Supply and delivery of the following consumable items for Pump Set repairs at the site of work to carryout the general maintenace works
50mm GM Gate valve
80mm GM Gate valve
R I Sheet
Bolts and Nuts - All sizes
50mm GI Pipe
80mm GI Pipe
100mm GI pipe
Supply, delivery and fixing of DI D/F Gate sluice/scour valves (soft seated) resilient seated soft sealing Gate Valves(Sluice Valves) with body Bonnet of Ductile cast iron of Grade GGG 40 or equivalent grade, Wedge fully rubber lined with EPDM replaceable spindle nut without gland packing and with 3 O- Ring protection on the shaft and seals of NBR and the valves should be of Vacuum tight and 100% leak proof with face to face dimensions as per BS 5163- 89/ISI 14846-2000/DIN 3202 F4. All the valves should be with electrostatic powder coating both inside and out side with pocket less straight through body passage. All the valves are to be compatible for buried application with pressure rating PN 10/16 and with 5 years warranty.
100mm DI Gate Valve
Supply, delivey and fixing of C.I. DOUBLE AIR VALVE AS PER ISI 14845/2000 AND WITH 5 YEARS WARRANTY
50mm CI Air Valve
Desilting light or sandysoil or silt from collection well below water level including the charges for special tools & plants and air compressor etc complete
Bleaching powder of 34% concentration as per standard specification.
COMBINED WATER SUPPLY SCHEME TO SODIYAMPAKKAM AND 10 OTHER HABITATIONS IN VEMBAKKAM UNION OF TIRUVANNAMALAI DISTRICT
Operation and Maintenance of the Electro Mechanical installations, equipments, components, pipelines valves and appurtenances, water retaining structures including protecton of all schemee components from damages/ theft undertaking legal actions for such untoward incidents, preventive maintenance, disinfection and deliverance of water as per quality standards and supply of earmarked quantity of water to the beneficiaries as per Annexure .........., carrying out the O&M as per standard operating procedures, Acts and rules in force and as directed by TWAD Board Oficers and excluding cost towards attending leak, burst repair and replacement works to electro mechanical installations consumables for disinfection of water, cleaning of all water retaining structure, electricity .
Repair & Renewals and Leak & Bursts :
Attending Leaks in the PVC pipelines of this CWSS for the following items, as per the standard procedure including earthwork excavation, dewatering, removing, relaying, jointing, civil works, cost of materials and all other incidental charges, etc complete within the stipulated time limit as directed by the TWAD Board officers.
PVC 4 KSC Pipes_Minor Leak
63mm OD PVC 4 KSC pipes_Minor Leak
75mm OD PVC 4 KSC pipes_Minor Leak
90mm OD PVC 4 KSC pipes_Minor Leak
110mm OD PVC 4 KSC pipes_Minor Leak
PVC 4 KSC Pipes_Major Leak
63mm OD PVC 4 KSC pipes_Major Leak
75mm OD PVC 4 KSC pipes_Major Leak
90mm OD PVC 4 KSC pipes_Major Leak
110mm OD PVC 4 KSC pipes_Major Leak
Attending Leaks/Bursts in the HDPE pipelines of this CWSS for the following items, as per the standard procedure including earthwork excavation, dewatering, removing, relaying, jointing by Electro fusion/butt Joint, civil works, cost of materials and all other incidental charges, etc complete within the stipulated time limit as directed by the TWAD Board officers.
HDPE PN 6 Pipes_Minor Leaks
63mm HDPE PN 6 pipes_Minor Leak
90mm HDPE PN 6 pipes_Minor Leak
160mm HDPE PN 6 pipes_Minor Leak
HDPE PN 6 Pipes_Major Leaks
63mm HDPE PN 6 pipes_Major Leak
90mm HDPE PN 6 pipes_Major Leak
160mm HDPE PN 6 pipes_Major Leak
Attending leaks and bursts in GI pipes of various sizes including Supply and delivery of following G I PIPES (MEDIUM) AS PER IS 1239/PART I/2004 and Lowering GI pipes and specials in the trenches and laying to proper grade and alignment, jointing with GI Specials and as directed by the TWAD Officers
50mm GI Pipe leak above GL
80mm GI Pipe leak above GL
Attending joint (Collar) Leaks in the AC pipelines of this CWSS for the following items, as per the standard procedure including earthwork excavation, dewatering, removing, relaying, jointing, civil works, cost of materials and all incidental charges, etc complete within the stipulated time limit as specified in Clause 2.6.4 of General conditions of Contract
AC Pipe_Collar Leak
150mm AC_Collar Leak
AC Pipe_Minor Leak centre crack
150mm AC Pipe_MS Cut Barrel
Labour for cutting open B.T. Roads (or) Maccadam road for laying water mains - 15 cm thick (SOR VOL II P.195)
For all size Pumping mains
Road Restoration with PCC 1:2:4 using 20 mm HBGS for the Concrete Road cut Portion after the pipes are laid, joined and tested complete and as directed by TWAD Board Officers - 15 cm thick
For all size Pumping mains
Supply and delivery of following sizes of HDPE PIPES - PE 100 AS PER IS 4984/2016 (Pre-Compounded Resin) inclusive of transportation charges to stockyard excluding unloading anywhere in Tamilnadu etc, complete and as directed by the TWAD Board officers. (SOR VOL II P.14)
160mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
75mm HDPE PN 6
63mm HDPE PN 6
CIVIL WORKS
Earth work excavation and depositing on bank with initial lead of 10 m and initial lift of 2m in narrow trenches for laying of pipes for water supply in the following types of soil
Hard stiff clay, stiff black cotton, hard red earth, shales, murrum gravel, stoney earth and earth mixed with small size boulders and hard gravelly soil. (SOR VOL II P.192)
160mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
75mm HDPE PN 6
63mm HDPE PN 6
Lowering HDPE pipes and specials to trench and laying to proper grade and alignment and as directed by the TWAD Officers. (SOR VOL II P.171)
160mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
75mm HDPE PN 6
63mm HDPE PN 6
Jointing HDPE Pipes and Specials by butt fusion welding / electro fusion welding joints using fusion equipment as per ISO 21307-2011 and as per IS 7634 (part-2) : 2012 including cost of hire charges for butt fusion equipment power supply arrangements etc., complete as per directed by TWAD Board Officers. (SOR VOL II P.184)
160mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
75mm HDPE PN 6
63mm HDPE PN 6
Refiling with excavated sand or other loose soil complying with standerd specification in layers of 15 cm thick well rammed and consolidated after pipes and specials are laid and tested. (SOR VOL II P.192)
160mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
75mm HDPE PN 6
63mm HDPE PN 6
Pumpsets
Carrying out the following repair works occuring during the maintenance period in the Electrical, Mechanical and Elctro-mechanical items to bring back the scheme / components into normal running conditition as per standard specification including all labour charges, cost of materials and all incidental charges within the stipulated time limit etc., complete as specified in Clause 2.8 of General conditions of Contract Part II etc as directed by TWAD Board officers
Attending the Rewinding, Repair and Renewal works in various capacity Open Well Submersible Pumpsets
Removing the Submersible pumpset by using tripod set after disconnecting the power supply cable and delivery pipe line fittings
5HP -OWS
15HP -OWS
20HP -OWS
30HP -OWS
Transporting the pumpset from Pump House to work shop.
5HP -OWS
15HP -OWS
20HP -OWS
30HP -OWS
Rewinding the submersible motor using best quality winding wire including cost of wire, Sleeve, other insulating and fibre class materials after deducting the cost of old materials.
5HP -OWS
15HP -OWS
20HP -OWS
30HP -OWS
Reconditioning the worn-out shaft and fittings, impeller and Gun Metal/ SS Bushes including cost of lath work & labour charges etc.,
5HP -OWS
15HP -OWS
20HP -OWS
30HP -OWS
Replacement of carbon type thrust bearing and pumpside Gun Metal Bush including cost of labour charges after deducting the cost of old material
5HP -OWS
15HP -OWS
20HP -OWS
30HP -OWS
Transporting charges for Submersible pumpset from work shop to Pump House after attending repair works.
5HP -OWS
15HP -OWS
20HP -OWS
30HP -OWS
Re-erection of pumpset in the Sump / Well by using tripod set and required Rubber washer and Bolt & Nuts and connecting the power supply cable and delivery pipeline arrangements testing to trial pumping.
5HP -OWS
15HP -OWS
20HP -OWS
30HP -OWS
Attending the Rewinding, Repair and Renewal works in Monoblock Pumpset
5HP_Monoblock
Removing the Monblock Centrifugal Pumpset from the Bed assembly by using contractors tools and materials after disconnecting the power supply cable and delivery pipe line fittings with required dummy plate arrangements.
Transporting the pumpset from the Pumping Station to work shop.
Removing the Burnt winding materials from the stator slots and cleaning the stator and rotor assembly by using contractor tools and materials
Reconditioning the worn-out shaft and fittings, impeller and Rope gland bush including cost of lath work & labour charges etc.,
Rewinding the Monblock Centrifugal Motor using best quality winding wire including cost of wire, Sleeve, other insulating and fibre class materials after deducting the cost of old materials.
Replacement of driven end (No: XXXX) and Non driven end (No:XXXX) Bearings suitable for Monblock Centrifugal Motor including the cost of Bearing and labour charges after deducting the cost of old materials.
Replacement of cooling fan at motor end and Terminal Board for suitable for Monblock Centrifugal Pumpset and labour charges after deducting the cost of old materials.
Transporting charges for Monblock Centrifugal Pumpset from work shop to Pump House after attending repair works.
Re-erection of pumpset in the Sump / Well by using required Rubber washer and Bolt & Nuts and connecting the power supply cable and delivery pipe line arrangements, testing and trial pumping.
7.5HP_Monoblock
Removing the Monblock Centrifugal Pumpset from the Bed assembly by using contractors tools and materials after disconnecting the power supply cable and delivery pipe line fittings with required dummy plate arrangements.
Transporting the pumpset from the Pumping Station to work shop.
Removing the Burnt winding materials from the stator slots and cleaning the stator and rotor assembly by using contractor tools and materials
Reconditioning the worn-out shaft and fittings, impeller and Rope gland bush including cost of lath work & labour charges etc.,
Rewinding the Monblock Centrifugal Motor using best quality winding wire including cost of wire, Sleeve, other insulating and fibre class materials after deducting the cost of old materials.
Replacement of driven end (No: XXXX) and Non driven end (No:XXXX) Bearings suitable for Monblock Centrifugal Motor including the cost of Bearing and labour charges after deducting the cost of old materials.
Replacement of cooling fan at motor end and Terminal Board for suitable for Monblock Centrifugal Pumpset and labour charges after deducting the cost of old materials.
Transporting charges for Monblock Centrifugal Pumpset from work shop to Pump House after attending repair works.
Re-erection of pumpset in the Sump / Well by using required Rubber washer and Bolt & Nuts and connecting the power supply cable and delivery pipe line arrangements, testing and trial pumping.
SUPPLY AND DELIVERY OF SERVICE CONNECTION ACCESSORIES L.T. 1100V PVC ALUMINIUM ARMOURED UNDER GROUND CABLE WITH ISI MARK
25 Sq.mm 3.5 Core
35 Sq.mm 3.5 Core
50 Sq.mm 3.5 Core
SUPPLY AND DELIVERY OF L.T. CABLES following size sq mm 3 CORE 1.1 KV GRADE ARMOURED ALUMINIUM CONDUCTOR CROSS LINKED POLY ETHYLENE INSULATED PVC SHEATHED CABLES CONFORMING TO IS 7098 (PART I)/1988 WITH ISI MARKING
25 Sq.mm 3 Core
95 Sq.mm 3 Core
SUPPLY AND DELIVERY OF PVC INSULATED AND SHEATHED following sq mm 3 CORE FLAT TYPE COPPER CABLE CONFORMING TO IS 694/1989
SUPPLY AND DELIVERY OF 150mm dia Pressure Gauge and Vaccum guage including all accessories as per specification (For Suction and Delivery to be mounted on wall on Teak Wood Board)
Supply, delivey and fixing of MOULDED CASE CIRCUIT BREAKER (MCCB) WITH THERMO MAGNETIC RELEASE - 4 Pole
Range - 63/100A
Range - 125A
Supply, delivey and fixing of RATE FOR MIXED DI-ELECTRIC CAPACITOR WITH TNEB TEST CERTIFICATE WITH ACCESSORIES INCLUDING BANKING CONFORMIING TO IS 2834.
Supply, delivey and fixing of Electro magnetic contactors of suitable capacity in AC Three Phase rating, conforming to IS/IEC 60947-4-1.
Supply, delivey and fixing of Overload Relays: Directly operated Bimetallic Thermal overload relay which operates in case of overload and also in case of under voltage with manual and auto reset mode.
Supply, delivey and fixing of Preventer – Single Phasing - Electric Motor protection device against single phasing. The device should protect the motor against single phasing, reverse phasing and unbalance supply. The device should be suitable for any auxillary device and have provisions for mounting in panel boards. Operate without need of any auxiliary supply.
Electric Motor protection device against dry running. The device should protect the motor against Dry running. The device should be suitable for any auxillary device and have provisions for mounting in panel boards. Operate without need of any auxiliary supply
Supply, delivey and fixing of FUSE UNITS (ANCHOR /EQUIVALENT)
63 Amps Porcelain fuse unit (500 V)
100 Amps Porcelain fuse unit (500 V)
200 Amps Porcelain fuse unit (500 V)
Supply, delivey and fixing of CHANGE OVER SWITCHES
16 Amps three phase 500 V 4 pole Change over switch
32 Amps three phase 500 V 4 pole Change over switch
63 Amps three phase 500 V 4 pole Change over switch
100 Amps three phase 500 V 4 pole Change over switch
Supply, delivey and fixing of PVC INSULATED SINGLE CORE MULTI STRAND FIRE RETARDANT FLEXIBLE COPPER CABLE WITH ISI MARK CONFORMING TO IS
Supply, delivey and fixing of HRC - FUSES - HIGHER END
HRC - 16 Amps
HRC - 32 Amps
HRC - 63 Amps
HRC - 125 Amps
HRC - 200 Amps
Supply and delivery of the following Electrical Works :consumable items at the site of work to carryout the general maintenace works
Voltmeter Digital - Three Phase Class 1-AC
Ammeter Digital - Three Phase Class 1-1A
20W 4 Feet LED Fitting with LED (Higher end)
LED OUTDOOR FITTINGS (LIGHT EMITTING DIODE) LOWER END 25W LED Street Light Fitting with LED
Supply and delivery of the following consumable items for Pump Set repairs at the site of work to carryout the general maintenace works
50mm GM Gate valve
80mm GM Gate valve
R I Sheet
Bolts and Nuts - All sizes
50mm GI Pipe
80mm GI Pipe
100mm GI pipe
Supply, delivery and fixing of DI D/F Gate sluice/scour valves (soft seated) resilient seated soft sealing Gate Valves(Sluice Valves) with body Bonnet of Ductile cast iron of Grade GGG 40 or equivalent grade, Wedge fully rubber lined with EPDM replaceable spindle nut without gland packing and with 3 O- Ring protection on the shaft and seals of NBR and the valves should be of Vacuum tight and 100% leak proof with face to face dimensions as per BS 5163- 89/ISI 14846-2000/DIN 3202 F4. All the valves should be with electrostatic powder coating both inside and out side with pocket less straight through body passage. All the valves are to be compatible for buried application with pressure rating PN 10/16 and with 5 years warranty.
150mm DI Gate Valve
Supply, delivey and fixing of C.I. DOUBLE AIR VALVE AS PER ISI 14845/2000 AND WITH 5 YEARS WARRANTY
50mm CI Air Valve
SUMP CLEANING
Cleaning of all storage points like sumps, elevated reservoirs of various capacities available in this scheme at a frequency of once in two months including scrapping the inner side of compartment completely, scouring / dewatering / desilting using required machineries, materials, labour and all other incidental charges, application of bleaching powder/ solution etc complete.
For 45001 to 60000 lit cap sump
Desilting light or sandysoil or silt from collection well below water level including the charges for special tools & plants and air compressor etc complete
Bleaching powder of 34% concentration as per standard specification.
COMBINED WATER SUPPLY SCHEME TO THENPOONDIPATTU AND 13 OTHER HABITATIONS IN CHEYYAR UNION & VEMBAKKAM UNION OF TIRUVANNAMALAI DISTRICT
Operation and Maintenance of the Electro Mechanical installations, equipments, components, pipelines valves and appurtenances, water retaining structures including protecton of all schemee components from damages/ theft undertaking legal actions for such untoward incidents, preventive maintenance, disinfection and deliverance of water as per quality standards and supply of earmarked quantity of water to the beneficiaries as per Annexure .........., carrying out the O&M as per standard operating procedures, Acts and rules in force and as directed by TWAD Board Oficers and excluding cost towards attending leak, burst repair and replacement works to electro mechanical installations consumables for disinfection of water, cleaning of all water retaining structure, electricity .
Repair & Renewals and Leak & Bursts :
Attending Leaks in the PVC pipelines of this CWSS for the following items, as per the standard procedure including earthwork excavation, dewatering, removing, relaying, jointing, civil works, cost of materials and all other incidental charges, etc complete within the stipulated time limit as directed by the TWAD Board officers.
PVC 4 KSC Pipes_Minor Leak
63mm OD PVC 4 KSC pipes_Minor Leak
75mm OD PVC 4 KSC pipes_Minor Leak
90mm OD PVC 4 KSC pipes_Minor Leak
110mm OD PVC 4 KSC pipes_Minor Leak
140mm OD PVC 4 KSC pipes_Minor Leak
PVC 4 KSC Pipes_Major Leak
63mm OD PVC 4 KSC pipes_Major Leak
75mm OD PVC 4 KSC pipes_Major Leak
90mm OD PVC 4 KSC pipes_Major Leak
110mm OD PVC 4 KSC pipes_Major Leak
140mm OD PVC 4 KSC pipes_Major Leak
Attending Leaks/Bursts in the HDPE pipelines of this CWSS for the following items, as per the standard procedure including earthwork excavation, dewatering, removing, relaying, jointing by Electro fusion/butt Joint, civil works, cost of materials and all other incidental charges, etc complete within the stipulated time limit as directed by the TWAD Board officers.
HDPE PN 6 Pipes_Minor Leaks
90mm HDPE PN 6 pipes_Minor Leak
110mm HDPE PN 6 pipes_Minor Leak
140mm HDPE PN 6 pipes_Minor Leak
HDPE PN 6 Pipes_Major Leaks
90mm HDPE PN 6 pipes_Major Leak
110mm HDPE PN 6 pipes_Major Leak
140mm HDPE PN 6 pipes_Major Leak
Attending leaks and bursts in GI pipes of various sizes including Supply and delivery of following G I PIPES (MEDIUM) AS PER IS 1239/PART I/2004 and Lowering GI pipes and specials in the trenches and laying to proper grade and alignment, jointing with GI Specials and as directed by the TWAD Officers
50mm GI Pipe leak above GL
65mm GI Pipe leak above GL
80mm GI Pipe leak above GL
Labour for cutting open B.T. Roads (or) Maccadam road for laying water mains - 15 cm thick (SOR VOL II P.195)
For all size Pumping mains
Road Restoration with PCC 1:2:4 using 20 mm HBGS for the Concrete Road cut Portion after the pipes are laid, joined and tested complete and as directed by TWAD Board Officers - 15 cm thick
For all size Pumping mains
MATERIALS
Supply and delivery of following sizes of HDPE PIPES - PE 100 AS PER IS 4984/2016 (Pre-Compounded Resin) inclusive of transportation charges to stockyard excluding unloading anywhere in Tamilnadu etc, complete and as directed by the TWAD Board officers. (SOR VOL II P.14)
140mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
75mm HDPE PN 6
63mm HDPE PN 6
CIVIL WORKS
Earth work excavation and depositing on bank with initial lead of 10 m and initial lift of 2m in narrow trenches for laying of pipes for water supply in the following types of soil
Hard stiff clay, stiff black cotton, hard red earth, shales, murrum gravel, stoney earth and earth mixed with small size boulders and hard gravelly soil. (SOR VOL II P.192)
140mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
75mm HDPE PN 6
63mm HDPE PN 6
Lowering HDPE pipes and specials to trench and laying to proper grade and alignment and as directed by the TWAD Officers. (SOR VOL II P.171)
140mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
75mm HDPE PN 6
63mm HDPE PN 6
Jointing HDPE Pipes and Specials by butt fusion welding / electro fusion welding joints using fusion equipment as per ISO 21307-2011 and as per IS 7634 (part-2) : 2012 including cost of hire charges for butt fusion equipment power supply arrangements etc., complete as per directed by TWAD Board Officers. (SOR VOL II P.184)
140mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
75mm HDPE PN 6
63mm HDPE PN 6
Refiling with excavated sand or other loose soil complying with standerd specification in layers of 15 cm thick well rammed and consolidated after pipes and specials are laid and tested. (SOR VOL II P.192)
140mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
75mm HDPE PN 6
63mm HDPE PN 6
Pumpsets
Carrying out the following repair works occuring during the maintenance period in the Electrical, Mechanical and Elctro-mechanical items to bring back the scheme / components into normal running conditition as per standard specification including all labour charges, cost of materials and all incidental charges within the stipulated time limit etc., complete as specified in Clause 2.8 of General conditions of Contract Part II etc as directed by TWAD Board officers
Attending the Rewinding, Repair and Renewal works in various capacity Open Well Submersible Pumpsets
Removing the Submersible pumpset by using tripod set after disconnecting the power supply cable and delivery pipe line fittings
5HP -OWS
7.5HP -OWS
10HP -OWS
Transporting the pumpset from Pump House to work shop.
5HP -OWS
7.5HP -OWS
10HP -OWS
Rewinding the submersible motor using best quality winding wire including cost of wire, Sleeve, other insulating and fibre class materials after deducting the cost of old materials.
5HP -OWS
7.5HP -OWS
10HP -OWS
Reconditioning the worn-out shaft and fittings, impeller and Gun Metal/ SS Bushes including cost of lath work & labour charges etc.,
5HP -OWS
7.5HP -OWS
10HP -OWS
Replacement of carbon type thrust bearing and pumpside Gun Metal Bush including cost of labour charges after deducting the cost of old material
5HP -OWS
7.5HP -OWS
10HP -OWS
Transporting charges for Submersible pumpset from work shop to Pump House after attending repair works.
5HP -OWS
7.5HP -OWS
10HP -OWS
Re-erection of pumpset in the Sump / Well by using tripod set and required Rubber washer and Bolt & Nuts and connecting the power supply cable and delivery pipeline arrangements testing to trial pumping.
5HP -OWS
7.5HP -OWS
10HP -OWS
SUPPLY AND DELIVERY OF SERVICE CONNECTION ACCESSORIES L.T. 1100V PVC ALUMINIUM ARMOURED UNDER GROUND CABLE WITH ISI MARK
25 Sq.mm 3.5 Core
35 Sq.mm 3.5 Core
50 Sq.mm 3.5 Core
SUPPLY AND DELIVERY OF L.T. CABLES following size sq mm 3 CORE 1.1 KV GRADE ARMOURED ALUMINIUM CONDUCTOR CROSS LINKED POLY ETHYLENE INSULATED PVC SHEATHED CABLES CONFORMING TO IS 7098 (PART I)/1988 WITH ISI MARKING
50 Sq.mm 3 Core
SUPPLY AND DELIVERY OF PVC INSULATED AND SHEATHED following sq mm 3 CORE FLAT TYPE COPPER CABLE CONFORMING TO IS 694/1989
SUPPLY AND DELIVERY OF 150mm dia Pressure Gauge and Vaccum guage including all accessories as per specification (For Suction and Delivery to be mounted on wall on Teak Wood Board)
Supply, delivey and fixing of MOULDED CASE CIRCUIT BREAKER (MCCB) WITH THERMO MAGNETIC RELEASE - 4 Pole
Range - 63/100A
Supply, delivey and fixing of RATE FOR MIXED DI-ELECTRIC CAPACITOR WITH TNEB TEST CERTIFICATE WITH ACCESSORIES INCLUDING BANKING CONFORMIING TO IS 2834.
Supply, delivey and fixing of Electro magnetic contactors of suitable capacity in AC Three Phase rating, conforming to IS/IEC 60947-4-1.
Supply, delivey and fixing of Overload Relays: Directly operated Bimetallic Thermal overload relay which operates in case of overload and also in case of under voltage with manual and auto reset mode.
Supply, delivey and fixing of Preventer – Single Phasing - Electric Motor protection device against single phasing. The device should protect the motor against single phasing, reverse phasing and unbalance supply. The device should be suitable for any auxillary device and have provisions for mounting in panel boards. Operate without need of any auxiliary supply.
Electric Motor protection device against dry running. The device should protect the motor against Dry running. The device should be suitable for any auxillary device and have provisions for mounting in panel boards. Operate without need of any auxiliary supply
Supply, delivey and fixing of FUSE UNITS (ANCHOR /EQUIVALENT)
63 Amps Porcelain fuse unit (500 V)
100 Amps Porcelain fuse unit (500 V)
200 Amps Porcelain fuse unit (500 V)
Supply, delivey and fixing of CHANGE OVER SWITCHES
16 Amps three phase 500 V 4 pole Change over switch
32 Amps three phase 500 V 4 pole Change over switch
63 Amps three phase 500 V 4 pole Change over switch
100 Amps three phase 500 V 4 pole Change over switch
Supply, delivey and fixing of PVC INSULATED SINGLE CORE MULTI STRAND FIRE RETARDANT FLEXIBLE COPPER CABLE WITH ISI MARK CONFORMING TO IS
Supply, delivey and fixing of HRC - FUSES - HIGHER END
HRC - 16 Amps
HRC - 32 Amps
HRC - 63 Amps
HRC - 125 Amps
Supply and delivery of the following Electrical Works :consumable items at the site of work to carryout the general maintenace works
Voltmeter Digital - Three Phase Class 1-AC
Ammeter Digital - Three Phase Class 1-1A
20W 4 Feet LED Fitting with LED (Higher end)
LED OUTDOOR FITTINGS (LIGHT EMITTING DIODE) LOWER END 25W LED Street Light Fitting with LED
Supply and delivery of the following consumable items for Pump Set repairs at the site of work to carryout the general maintenace works
50mm GM Gate valve
80mm GM Gate valve
R I Sheet
Bolts and Nuts - All sizes
50mm GI Pipe
80mm GI Pipe
100mm GI pipe
Supply, delivery and fixing of DI D/F Gate sluice/scour valves (soft seated) resilient seated soft sealing Gate Valves(Sluice Valves) with body Bonnet of Ductile cast iron of Grade GGG 40 or equivalent grade, Wedge fully rubber lined with EPDM replaceable spindle nut without gland packing and with 3 O- Ring protection on the shaft and seals of NBR and the valves should be of Vacuum tight and 100% leak proof with face to face dimensions as per BS 5163- 89/ISI 14846-2000/DIN 3202 F4. All the valves should be with electrostatic powder coating both inside and out side with pocket less straight through body passage. All the valves are to be compatible for buried application with pressure rating PN 10/16 and with 5 years warranty.
100mm DI Gate Valve
Supply, delivey and fixing of C.I. DOUBLE AIR VALVE AS PER ISI 14845/2000 AND WITH 5 YEARS WARRANTY
50mm CI Air Valve
SUMP CLEANING
Cleaning of all storage points like sumps, elevated reservoirs of various capacities available in this scheme at a frequency of once in two months including scrapping the inner side of compartment completely, scouring / dewatering / desilting using required machineries, materials, labour and all other incidental charges, application of bleaching powder/ solution etc complete.
For 175001 to 200000 lit cap sump
Desilting light or sandysoil or silt from collection well below water level including the charges for special tools & plants and air compressor etc complete
Bleaching powder of 34% concentration as per standard specification.
COMBINED WATER SUPPLY SCHEME TO UKKAL KOTTAKARAI AND 13 OTHER HABITATIONSUNION IN ANAKKAVUR UNION OF TIRUVANNAMALAI DISTRICT
Attending Leaks in the PVC pipelines of this CWSS for the following items, as per the standard procedure including earthwork excavation, dewatering, removing, relaying, jointing, civil works, cost of materials and all other incidental charges, etc complete within the stipulated time limit as directed by the TWAD Board officers.
PVC 4 KSC Pipes_Minor Leak
63mm OD PVC 4 KSC pipes_Minor Leak
75mm OD PVC 4 KSC pipes_Minor Leak
90mm OD PVC 4 KSC pipes_Minor Leak
110mm OD PVC 4 KSC pipes_Minor Leak
PVC 4 KSC Pipes_Major Leak
63mm OD PVC 4 KSC pipes_Major Leak
75mm OD PVC 4 KSC pipes_Major Leak
90mm OD PVC 4 KSC pipes_Major Leak
110mm OD PVC 4 KSC pipes_Major Leak
Attending Leaks/Bursts in the HDPE pipelines of this CWSS for the following items, as per the standard procedure including earthwork excavation, dewatering, removing, relaying, jointing by Electro fusion/butt Joint, civil works, cost of materials and all other incidental charges, etc complete within the stipulated time limit as directed by the TWAD Board officers.
HDPE PN 6 Pipes_Minor Leaks
110mm HDPE PN 6 pipes_Minor Leak
HDPE PN 6 Pipes_Major Leaks
110mm HDPE PN 6 pipes_Major Leak
Attending leaks and bursts in GI pipes of various sizes including Supply and delivery of following G I PIPES (MEDIUM) AS PER IS 1239/PART I/2004 and Lowering GI pipes and specials in the trenches and laying to proper grade and alignment, jointing with GI Specials and as directed by the TWAD Officers
50mm GI Pipe leak above GL
65mm GI Pipe leak above GL
80mm GI Pipe leak above GL
100mm GI Pipe leak above GL
Labour for cutting open B.T. Roads (or) Maccadam road for laying water mains - 15 cm thick (SOR VOL II P.195)
For all size Pumping mains
Road Restoration with PCC 1:2:4 using 20 mm HBGS for the Concrete Road cut Portion after the pipes are laid, joined and tested complete and as directed by TWAD Board Officers - 15 cm thick
For all size Pumping mains
MATERIALS
Supply and delivery of following sizes of HDPE PIPES - PE 100 AS PER IS 4984/2016 (Pre-Compounded Resin) inclusive of transportation charges to stockyard excluding unloading anywhere in Tamilnadu etc, complete and as directed by the TWAD Board officers. (SOR VOL II P.14)
110mm HDPE PN 6
90mm HDPE PN 6
75mm HDPE PN 6
63mm HDPE PN 6
CIVIL WORKS
Earth work excavation and depositing on bank with initial lead of 10 m and initial lift of 2m in narrow trenches for laying of pipes for water supply in the following types of soil
Hard stiff clay, stiff black cotton, hard red earth, shales, murrum gravel, stoney earth and earth mixed with small size boulders and hard gravelly soil. (SOR VOL II P.192)
110mm HDPE PN 6
90mm HDPE PN 6
75mm HDPE PN 6
63mm HDPE PN 6
Lowering HDPE pipes and specials to trench and laying to proper grade and alignment and as directed by the TWAD Officers. (SOR VOL II P.171)
110mm HDPE PN 6
90mm HDPE PN 6
75mm HDPE PN 6
63mm HDPE PN 6
Jointing HDPE Pipes and Specials by butt fusion welding / electro fusion welding joints using fusion equipment as per ISO 21307-2011 and as per IS 7634 (part-2) : 2012 including cost of hire charges for butt fusion equipment power supply arrangements etc., complete as per directed by TWAD Board Officers. (SOR VOL II P.184)
110mm HDPE PN 6
90mm HDPE PN 6
75mm HDPE PN 6
63mm HDPE PN 6
Refiling with excavated sand or other loose soil complying with standerd specification in layers of 15 cm thick well rammed and consolidated after pipes and specials are laid and tested. (SOR VOL II P.192)
110mm HDPE PN 6
90mm HDPE PN 6
75mm HDPE PN 6
63mm HDPE PN 6
Pumpsets
Carrying out the following repair works occuring during the maintenance period in the Electrical, Mechanical and Elctro-mechanical items to bring back the scheme / components into normal running conditition as per standard specification including all labour charges, cost of materials and all incidental charges within the stipulated time limit etc., complete as specified in Clause 2.8 of General conditions of Contract Part II etc as directed by TWAD Board officers
Attending the Rewinding, Repair and Renewal works in various capacity Open Well Submersible Pumpsets
Removing the Submersible pumpset by using tripod set after disconnecting the power supply cable and delivery pipe line fittings
5HP -OWS
7.5HP -OWS
15HP -OWS
20HP -OWS
Transporting the pumpset from Pump House to work shop.
5HP -OWS
7.5HP -OWS
15HP -OWS
20HP -OWS
Rewinding the submersible motor using best quality winding wire including cost of wire, Sleeve, other insulating and fibre class materials after deducting the cost of old materials.
5HP -OWS
7.5HP -OWS
15HP -OWS
20HP -OWS
Reconditioning the worn-out shaft and fittings, impeller and Gun Metal/ SS Bushes including cost of lath work & labour charges etc.,
5HP -OWS
7.5HP -OWS
15HP -OWS
20HP -OWS
Replacement of carbon type thrust bearing and pumpside Gun Metal Bush including cost of labour charges after deducting the cost of old material
5HP -OWS
7.5HP -OWS
15HP -OWS
20HP -OWS
Transporting charges for Submersible pumpset from work shop to Pump House after attending repair works.
5HP -OWS
7.5HP -OWS
15HP -OWS
20HP -OWS
Re-erection of pumpset in the Sump / Well by using tripod set and required Rubber washer and Bolt & Nuts and connecting the power supply cable and delivery pipeline arrangements testing to trial pumping.
5HP -OWS
7.5HP -OWS
15HP -OWS
20HP -OWS
SUPPLY AND DELIVERY OF SERVICE CONNECTION ACCESSORIES L.T. 1100V PVC ALUMINIUM ARMOURED UNDER GROUND CABLE WITH ISI MARK
25 Sq.mm 3.5 Core
35 Sq.mm 3.5 Core
50 Sq.mm 3.5 Core
SUPPLY AND DELIVERY OF L.T. CABLES following size sq mm 3 CORE 1.1 KV GRADE ARMOURED ALUMINIUM CONDUCTOR CROSS LINKED POLY ETHYLENE INSULATED PVC SHEATHED CABLES CONFORMING TO IS 7098 (PART I)/1988 WITH ISI MARKING
35 Sq.mm 3 Core
SUPPLY AND DELIVERY OF PVC INSULATED AND SHEATHED following sq mm 3 CORE FLAT TYPE COPPER CABLE CONFORMING TO IS 694/1989
SUPPLY AND DELIVERY OF 150mm dia Pressure Gauge and Vaccum guage including all accessories as per specification (For Suction and Delivery to be mounted on wall on Teak Wood Board)
Supply, delivey and fixing of MOULDED CASE CIRCUIT BREAKER (MCCB) WITH THERMO MAGNETIC RELEASE - 4 Pole
Range - 63/100A
Range - 125A
Supply, delivey and fixing of RATE FOR MIXED DI-ELECTRIC CAPACITOR WITH TNEB TEST CERTIFICATE WITH ACCESSORIES INCLUDING BANKING CONFORMIING TO IS 2834.
Supply, delivey and fixing of Electro magnetic contactors of suitable capacity in AC Three Phase rating, conforming to IS/IEC 60947-4-1.
Supply, delivey and fixing of Overload Relays: Directly operated Bimetallic Thermal overload relay which operates in case of overload and also in case of under voltage with manual and auto reset mode.
Supply, delivey and fixing of Preventer – Single Phasing - Electric Motor protection device against single phasing. The device should protect the motor against single phasing, reverse phasing and unbalance supply. The device should be suitable for any auxillary device and have provisions for mounting in panel boards. Operate without need of any auxiliary supply.
Electric Motor protection device against dry running. The device should protect the motor against Dry running. The device should be suitable for any auxillary device and have provisions for mounting in panel boards. Operate without need of any auxiliary supply
Supply, delivey and fixing of FUSE UNITS (ANCHOR /EQUIVALENT)
63 Amps Porcelain fuse unit (500 V)
100 Amps Porcelain fuse unit (500 V)
200 Amps Porcelain fuse unit (500 V)
Supply, delivey and fixing of CHANGE OVER SWITCHES
100 Amps three phase 500 V 4 pole Change over switch
Supply, delivey and fixing of PVC INSULATED SINGLE CORE MULTI STRAND FIRE RETARDANT FLEXIBLE COPPER CABLE WITH ISI MARK CONFORMING TO IS
Supply, delivey and fixing of HRC - FUSES - HIGHER END
HRC - 16 Amps
HRC - 32 Amps
HRC - 63 Amps
HRC - 125 Amps
Supply and delivery of the following Electrical Works :consumable items at the site of work to carryout the general maintenace works
Voltmeter Digital - Three Phase Class 1-AC
Ammeter Digital - Three Phase Class 1-1A
20W 4 Feet LED Fitting with LED (Higher end)
LED OUTDOOR FITTINGS (LIGHT EMITTING DIODE) LOWER END 25W LED Street Light Fitting with LED
Supply and delivery of the following consumable items for Pump Set repairs at the site of work to carryout the general maintenace works
50mm GM Gate valve
80mm GM Gate valve
R I Sheet
Bolts and Nuts - All sizes
50mm GI Pipe
80mm GI Pipe
100mm GI pipe
Supply, delivery and fixing of DI D/F Gate sluice/scour valves (soft seated) resilient seated soft sealing Gate Valves(Sluice Valves) with body Bonnet of Ductile cast iron of Grade GGG 40 or equivalent grade, Wedge fully rubber lined with EPDM replaceable spindle nut without gland packing and with 3 O- Ring protection on the shaft and seals of NBR and the valves should be of Vacuum tight and 100% leak proof with face to face dimensions as per BS 5163- 89/ISI 14846-2000/DIN 3202 F4. All the valves should be with electrostatic powder coating both inside and out side with pocket less straight through body passage. All the valves are to be compatible for buried application with pressure rating PN 10/16 and with 5 years warranty.
100mm DI Gate Valve
Supply, delivey and fixing of C.I. DOUBLE AIR VALVE AS PER ISI 14845/2000 AND WITH 5 YEARS WARRANTY
50mm CI Air Valve
SUMP CLEANING
Cleaning of all storage points like sumps, elevated reservoirs of various capacities available in this scheme at a frequency of once in two months including scrapping the inner side of compartment completely, scouring / dewatering / desilting using required machineries, materials, labour and all other incidental charges, application of bleaching powder/ solution etc complete.
For 15001 to 30000 lit cap sump
Desilting light or sandysoil or silt from collection well below water level including the charges for special tools & plants and air compressor etc complete
Bleaching powder of 34% concentration as per standard specification.
COMBINED WATER SUPPLY SCHEME TO UMAYALPURAM, VEMBAKKAM H AND 10 OTHER HABITATIONS IN VEMBAKKAM UNION OF TIRUVANNAMALAI DISTRICT
Operation and Maintenance of the Electro Mechanical installations, equipments, components, pipelines valves and appurtenances, water retaining structures including protecton of all schemee components from damages/ theft undertaking legal actions for such untoward incidents, preventive maintenance, disinfection and deliverance of water as per quality standards and supply of earmarked quantity of water to the beneficiaries as per Annexure .........., carrying out the O&M as per standard operating procedures, Acts and rules in force and as directed by TWAD Board Oficers and excluding cost towards attending leak, burst repair and replacement works to electro mechanical installations consumables for disinfection of water, cleaning of all water retaining structure, electricity .
Repair & Renewals and Leak & Bursts :
Attending Leaks in the PVC pipelines of this CWSS for the following items, as per the standard procedure including earthwork excavation, dewatering, removing, relaying, jointing, civil works, cost of materials and all other incidental charges, etc complete within the stipulated time limit as directed by the TWAD Board officers.
PVC 4 KSC Pipes_Minor Leak
63mm OD PVC 4 KSC pipes_Minor Leak
75mm OD PVC 4 KSC pipes_Minor Leak
90mm OD PVC 4 KSC pipes_Minor Leak
110mm OD PVC 4 KSC pipes_Minor Leak
PVC 4 KSC Pipes_Major Leak
63mm OD PVC 4 KSC pipes_Major Leak
75mm OD PVC 4 KSC pipes_Major Leak
90mm OD PVC 4 KSC pipes_Major Leak
110mm OD PVC 4 KSC pipes_Major Leak
Attending Leaks/Bursts in the HDPE pipelines of this CWSS for the following items, as per the standard procedure including earthwork excavation, dewatering, removing, relaying, jointing by Electro fusion/butt Joint, civil works, cost of materials and all other incidental charges, etc complete within the stipulated time limit as directed by the TWAD Board officers.
HDPE PN 6 Pipes_Minor Leaks
63mm HDPE PN 6 pipes_Minor Leak
110mm HDPE PN 6 pipes_Minor Leak
125mm HDPE PN 6 pipes_Minor Leak
160mm HDPE PN 6 pipes_Minor Leak
HDPE PN 6 Pipes_Major Leaks
63mm HDPE PN 6 pipes_Major Leak
110mm HDPE PN 6 pipes_Major Leak
125mm HDPE PN 6 pipes_Major Leak
160mm HDPE PN 6 pipes_Major Leak
Attending leaks and bursts in GI pipes of various sizes including Supply and delivery of following G I PIPES (MEDIUM) AS PER IS 1239/PART I/2004 and Lowering GI pipes and specials in the trenches and laying to proper grade and alignment, jointing with GI Specials and as directed by the TWAD Officers
50mm GI Pipe leak above GL
80mm GI Pipe leak above GL
125mm GI Pipe leak above GL
150mm GI Pipe leak above GL
Attending joint (Collar) Leaks in the AC pipelines of this CWSS for the following items, as per the standard procedure including earthwork excavation, dewatering, removing, relaying, jointing, civil works, cost of materials and all incidental charges, etc complete within the stipulated time limit as specified in Clause 2.6.4 of General conditions of Contract
AC Pipe_Collar Leak
150mm AC_Collar Leak
AC Pipe_Minor Leak centre crack
150mm AC Pipe_MS Cut Barrel
Labour for cutting open B.T. Roads (or) Maccadam road for laying water mains - 15 cm thick (SOR VOL II P.195)
For all size Pumping mains
Road Restoration with PCC 1:2:4 using 20 mm HBGS for the Concrete Road cut Portion after the pipes are laid, joined and tested complete and as directed by TWAD Board Officers - 15 cm thick
For all size Pumping mains
MATERIALS
Supply and delivery of following sizes of HDPE PIPES - PE 100 AS PER IS 4984/2016 (Pre-Compounded Resin) inclusive of transportation charges to stockyard excluding unloading anywhere in Tamilnadu etc, complete and as directed by the TWAD Board officers. (SOR VOL II P.14)
160mm HDPE PN 6
125mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
75mm HDPE PN 6
63mm HDPE PN 6
CIVIL WORKS
Earth work excavation and depositing on bank with initial lead of 10 m and initial lift of 2m in narrow trenches for laying of pipes for water supply in the following types of soil
Hard stiff clay, stiff black cotton, hard red earth, shales, murrum gravel, stoney earth and earth mixed with small size boulders and hard gravelly soil. (SOR VOL II P.192)
160mm HDPE PN 6
125mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
75mm HDPE PN 6
63mm HDPE PN 6
Lowering HDPE pipes and specials to trench and laying to proper grade and alignment and as directed by the TWAD Officers. (SOR VOL II P.171)
160mm HDPE PN 6
125mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
75mm HDPE PN 6
63mm HDPE PN 6
Jointing HDPE Pipes and Specials by butt fusion welding / electro fusion welding joints using fusion equipment as per ISO 21307-2011 and as per IS 7634 (part-2) : 2012 including cost of hire charges for butt fusion equipment power supply arrangements etc., complete as per directed by TWAD Board Officers. (SOR VOL II P.184)
160mm HDPE PN 6
125mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
75mm HDPE PN 6
63mm HDPE PN 6
Refiling with excavated sand or other loose soil complying with standerd specification in layers of 15 cm thick well rammed and consolidated after pipes and specials are laid and tested. (SOR VOL II P.192)
160mm HDPE PN 6
125mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
75mm HDPE PN 6
63mm HDPE PN 6
Pumpsets
Carrying out the following repair works occuring during the maintenance period in the Electrical, Mechanical and Elctro-mechanical items to bring back the scheme / components into normal running conditition as per standard specification including all labour charges, cost of materials and all incidental charges within the stipulated time limit etc., complete as specified in Clause 2.8 of General conditions of Contract Part II etc as directed by TWAD Board officers
Attending the Rewinding, Repair and Renewal works in various capacity Open Well Submersible Pumpsets
Removing the Submersible pumpset by using tripod set after disconnecting the power supply cable and delivery pipe line fittings
1HP -OWS
5HP -OWS
15HP -OWS
20HP -OWS
Transporting the pumpset from Pump House to work shop.
1HP -OWS
5HP -OWS
15HP -OWS
20HP -OWS
Rewinding the submersible motor using best quality winding wire including cost of wire, Sleeve, other insulating and fibre class materials after deducting the cost of old materials.
1HP -OWS
5HP -OWS
15HP -OWS
20HP -OWS
Reconditioning the worn-out shaft and fittings, impeller and Gun Metal/ SS Bushes including cost of lath work & labour charges etc.,
1HP -OWS
5HP -OWS
15HP -OWS
20HP -OWS
Replacement of carbon type thrust bearing and pumpside Gun Metal Bush including cost of labour charges after deducting the cost of old material
1HP -OWS
5HP -OWS
15HP -OWS
20HP -OWS
Transporting charges for Submersible pumpset from work shop to Pump House after attending repair works.
1HP -OWS
5HP -OWS
15HP -OWS
20HP -OWS
Re-erection of pumpset in the Sump / Well by using tripod set and required Rubber washer and Bolt & Nuts and connecting the power supply cable and delivery pipeline arrangements testing to trial pumping.
1HP -OWS
5HP -OWS
15HP -OWS
20HP -OWS
SUPPLY AND DELIVERY OF SERVICE CONNECTION ACCESSORIES L.T. 1100V PVC ALUMINIUM ARMOURED UNDER GROUND CABLE WITH ISI MARK
25 Sq.mm 3.5 Core
35 Sq.mm 3.5 Core
50 Sq.mm 3.5 Core
SUPPLY AND DELIVERY OF L.T. CABLES following size sq mm 3 CORE 1.1 KV GRADE ARMOURED ALUMINIUM CONDUCTOR CROSS LINKED POLY ETHYLENE INSULATED PVC SHEATHED CABLES CONFORMING TO IS 7098 (PART I)/1988 WITH ISI MARKING
35 Sq.mm 3 Core
95 Sq.mm 3 Core
SUPPLY AND DELIVERY OF PVC INSULATED AND SHEATHED following sq mm 3 CORE FLAT TYPE COPPER CABLE CONFORMING TO IS 694/1989
SUPPLY AND DELIVERY OF 150mm dia Pressure Gauge and Vaccum guage including all accessories as per specification (For Suction and Delivery to be mounted on wall on Teak Wood Board)
Supply, delivey and fixing of MOULDED CASE CIRCUIT BREAKER (MCCB) WITH THERMO MAGNETIC RELEASE - 4 Pole
Range - 63/100A
Range - 125A
Supply, delivey and fixing of RATE FOR MIXED DI-ELECTRIC CAPACITOR WITH TNEB TEST CERTIFICATE WITH ACCESSORIES INCLUDING BANKING CONFORMIING TO IS 2834.
Supply, delivey and fixing of Electro magnetic contactors of suitable capacity in AC Three Phase rating, conforming to IS/IEC 60947-4-1.
Supply, delivey and fixing of Overload Relays: Directly operated Bimetallic Thermal overload relay which operates in case of overload and also in case of under voltage with manual and auto reset mode.
Supply, delivey and fixing of Preventer – Single Phasing - Electric Motor protection device against single phasing. The device should protect the motor against single phasing, reverse phasing and unbalance supply. The device should be suitable for any auxillary device and have provisions for mounting in panel boards. Operate without need of any auxiliary supply.
Electric Motor protection device against dry running. The device should protect the motor against Dry running. The device should be suitable for any auxillary device and have provisions for mounting in panel boards. Operate without need of any auxiliary supply
Supply, delivey and fixing of FUSE UNITS (ANCHOR /EQUIVALENT)
63 Amps Porcelain fuse unit (500 V)
100 Amps Porcelain fuse unit (500 V)
200 Amps Porcelain fuse unit (500 V)
Supply, delivey and fixing of CHANGE OVER SWITCHES
16 Amps three phase 500 V 4 pole Change over switch
32 Amps three phase 500 V 4 pole Change over switch
100 Amps three phase 500 V 4 pole Change over switch
Supply, delivey and fixing of PVC INSULATED SINGLE CORE MULTI STRAND FIRE RETARDANT FLEXIBLE COPPER CABLE WITH ISI MARK CONFORMING TO IS
Supply, delivey and fixing of HRC - FUSES - HIGHER END
HRC - 16 Amps
HRC - 32 Amps
HRC - 63 Amps
HRC - 125 Amps
Supply and delivery of the following Electrical Works :consumable items at the site of work to carryout the general maintenace works
Voltmeter Digital - Three Phase Class 1-AC
Ammeter Digital - Three Phase Class 1-1A
20W 4 Feet LED Fitting with LED (Higher end)
LED OUTDOOR FITTINGS (LIGHT EMITTING DIODE) LOWER END 25W LED Street Light Fitting with LED
Supply and delivery of the following consumable items for Pump Set repairs at the site of work to carryout the general maintenace works
50mm GM Gate valve
80mm GM Gate valve
R I Sheet
Bolts and Nuts - All sizes
50mm GI Pipe
65mm GI Pipe
80mm GI Pipe
100mm GI pipe
Supply, delivery and fixing of DI D/F Gate sluice/scour valves (soft seated) resilient seated soft sealing Gate Valves(Sluice Valves) with body Bonnet of Ductile cast iron of Grade GGG 40 or equivalent grade, Wedge fully rubber lined with EPDM replaceable spindle nut without gland packing and with 3 O- Ring protection on the shaft and seals of NBR and the valves should be of Vacuum tight and 100% leak proof with face to face dimensions as per BS 5163- 89/ISI 14846-2000/DIN 3202 F4. All the valves should be with electrostatic powder coating both inside and out side with pocket less straight through body passage. All the valves are to be compatible for buried application with pressure rating PN 10/16 and with 5 years warranty.
100mm DI Gate Valve
Supply, delivey and fixing of C.I. DOUBLE AIR VALVE AS PER ISI 14845/2000 AND WITH 5 YEARS WARRANTY
50mm CI Air Valve
SUMP CLEANING
Cleaning of all storage points like sumps, elevated reservoirs of various capacities available in this scheme at a frequency of once in two months including scrapping the inner side of compartment completely, scouring / dewatering / desilting using required machineries, materials, labour and all other incidental charges, application of bleaching powder/ solution etc complete.
For 5000 to 15000 lit cap sump
For 30001 to 45000 lit cap sump
Desilting light or sandysoil or silt from collection well below water level including the charges for special tools & plants and air compressor etc complete
Provision for replacement of existing pipelines which are damaged due to widening of SH, NH and NHAI Roads and other line departments
Bleaching powder of 34% concentration as per standard specification.
COMBINED WATER SUPPLY SCHEME TO VINNAMANGALAM AND 13 OTHER HABITATIONS IN CHEYYAR OF TIRUVANNAMALAI DISTRICT
Operation and Maintenance of the Electro Mechanical installations, equipments, components, pipelines valves and appurtenances, water retaining structures including protecton of all schemee components from damages/ theft undertaking legal actions for such untoward incidents, preventive maintenance, disinfection and deliverance of water as per quality standards and supply of earmarked quantity of water to the beneficiaries as per Annexure .........., carrying out the O&M as per standard operating procedures, Acts and rules in force and as directed by TWAD Board Oficers and excluding cost towards attending leak, burst repair and replacement works to electro mechanical installations consumables for disinfection of water, cleaning of all water retaining structure, electricity .
Repair & Renewals and Leak & Bursts :
Attending Leaks in the PVC pipelines of this CWSS for the following items, as per the standard procedure including earthwork excavation, dewatering, removing, relaying, jointing, civil works, cost of materials and all other incidental charges, etc complete within the stipulated time limit as directed by the TWAD Board officers.
PVC 4 KSC Pipes_Minor Leak
90mm OD PVC 4 KSC pipes_Minor Leak
110mm OD PVC 4 KSC pipes_Minor Leak
140mm OD PVC 4 KSC pipes_Minor Leak
PVC 4 KSC Pipes_Major Leak
90mm OD PVC 4 KSC pipes_Major Leak
110mm OD PVC 4 KSC pipes_Major Leak
140mm OD PVC 4 KSC pipes_Major Leak
Attending Leaks/Bursts in the HDPE pipelines of this CWSS for the following items, as per the standard procedure including earthwork excavation, dewatering, removing, relaying, jointing by Electro fusion/butt Joint, civil works, cost of materials and all other incidental charges, etc complete within the stipulated time limit as directed by the TWAD Board officers.
HDPE PN 6 Pipes_Minor Leaks
110mm HDPE PN 6 pipes_Minor Leak
HDPE PN 6 Pipes_Major Leaks
110mm HDPE PN 6 pipes_Major Leak
Attending leaks and bursts in GI pipes of various sizes including Supply and delivery of following G I PIPES (MEDIUM) AS PER IS 1239/PART I/2004 and Lowering GI pipes and specials in the trenches and laying to proper grade and alignment, jointing with GI Specials and as directed by the TWAD Officers
50mm GI Pipe leak above GL
65mm GI Pipe leak above GL
80mm GI Pipe leak above GL
100mm GI Pipe leak above GL
125mm GI Pipe leak above GL
Labour for cutting open B.T. Roads (or) Maccadam road for laying water mains - 15 cm thick (SOR VOL II P.195)
For all size Pumping mains
Road Restoration with PCC 1:2:4 using 20 mm HBGS for the Concrete Road cut Portion after the pipes are laid, joined and tested complete and as directed by TWAD Board Officers - 15 cm thick
For all size Pumping mains
MATERIALS
Supply and delivery of following sizes of HDPE PIPES - PE 100 AS PER IS 4984/2016 (Pre-Compounded Resin) inclusive of transportation charges to stockyard excluding unloading anywhere in Tamilnadu etc, complete and as directed by the TWAD Board officers. (SOR VOL II P.14)
140mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
CIVIL WORKS
Earth work excavation and depositing on bank with initial lead of 10 m and initial lift of 2m in narrow trenches for laying of pipes for water supply in the following types of soil
Hard stiff clay, stiff black cotton, hard red earth, shales, murrum gravel, stoney earth and earth mixed with small size boulders and hard gravelly soil. (SOR VOL II P.192)
140mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
Lowering HDPE pipes and specials to trench and laying to proper grade and alignment and as directed by the TWAD Officers. (SOR VOL II P.171)
140mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
Jointing HDPE Pipes and Specials by butt fusion welding / electro fusion welding joints using fusion equipment as per ISO 21307-2011 and as per IS 7634 (part-2) : 2012 including cost of hire charges for butt fusion equipment power supply arrangements etc., complete as per directed by TWAD Board Officers. (SOR VOL II P.184)
140mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
Refiling with excavated sand or other loose soil complying with standerd specification in layers of 15 cm thick well rammed and consolidated after pipes and specials are laid and tested. (SOR VOL II P.192)
140mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
Pumpsets
Carrying out the following repair works occuring during the maintenance period in the Electrical, Mechanical and Elctro-mechanical items to bring back the scheme / components into normal running conditition as per standard specification including all labour charges, cost of materials and all incidental charges within the stipulated time limit etc., complete as specified in Clause 2.8 of General conditions of Contract Part II etc as directed by TWAD Board officers
Attending the Rewinding, Repair and Renewal works in various capacity Open Well Submersible Pumpsets
Removing the Submersible pumpset by using tripod set after disconnecting the power supply cable and delivery pipe line fittings
5HP -OWS
10HP -OWS
Transporting the pumpset from Pump House to work shop.
5HP -OWS
10HP -OWS
Rewinding the submersible motor using best quality winding wire including cost of wire, Sleeve, other insulating and fibre class materials after deducting the cost of old materials.
5HP -OWS
10HP -OWS
Reconditioning the worn-out shaft and fittings, impeller and Gun Metal/ SS Bushes including cost of lath work & labour charges etc.,
5HP -OWS
10HP -OWS
Replacement of carbon type thrust bearing and pumpside Gun Metal Bush including cost of labour charges after deducting the cost of old material
5HP -OWS
10HP -OWS
Transporting charges for Submersible pumpset from work shop to Pump House after attending repair works.
5HP -OWS
10HP -OWS
Re-erection of pumpset in the Sump / Well by using tripod set and required Rubber washer and Bolt & Nuts and connecting the power supply cable and delivery pipeline arrangements testing to trial pumping.
5HP -OWS
10HP -OWS
SUPPLY AND DELIVERY OF SERVICE CONNECTION ACCESSORIES L.T. 1100V PVC ALUMINIUM ARMOURED UNDER GROUND CABLE WITH ISI MARK
25 Sq.mm 3.5 Core
35 Sq.mm 3.5 Core
50 Sq.mm 3.5 Core
SUPPLY AND DELIVERY OF L.T. CABLES following size sq mm 3 CORE 1.1 KV GRADE ARMOURED ALUMINIUM CONDUCTOR CROSS LINKED POLY ETHYLENE INSULATED PVC SHEATHED CABLES CONFORMING TO IS 7098 (PART I)/1988 WITH ISI MARKING
35 Sq.mm 3 Core
50 Sq.mm 3 Core
SUPPLY AND DELIVERY OF PVC INSULATED AND SHEATHED following sq mm 3 CORE FLAT TYPE COPPER CABLE CONFORMING TO IS 694/1989
SUPPLY AND DELIVERY OF 150mm dia Pressure Gauge and Vaccum guage including all accessories as per specification (For Suction and Delivery to be mounted on wall on Teak Wood Board)
Supply, delivey and fixing of MOULDED CASE CIRCUIT BREAKER (MCCB) WITH THERMO MAGNETIC RELEASE - 4 Pole
Range - 63/100A
Supply, delivey and fixing of RATE FOR MIXED DI-ELECTRIC CAPACITOR WITH TNEB TEST CERTIFICATE WITH ACCESSORIES INCLUDING BANKING CONFORMIING TO IS 2834.
Supply, delivey and fixing of Electro magnetic contactors of suitable capacity in AC Three Phase rating, conforming to IS/IEC 60947-4-1.
Supply, delivey and fixing of Overload Relays: Directly operated Bimetallic Thermal overload relay which operates in case of overload and also in case of under voltage with manual and auto reset mode.
Supply, delivey and fixing of Preventer – Single Phasing - Electric Motor protection device against single phasing. The device should protect the motor against single phasing, reverse phasing and unbalance supply. The device should be suitable for any auxillary device and have provisions for mounting in panel boards. Operate without need of any auxiliary supply.
Electric Motor protection device against dry running. The device should protect the motor against Dry running. The device should be suitable for any auxillary device and have provisions for mounting in panel boards. Operate without need of any auxiliary supply
Supply, delivey and fixing of FUSE UNITS (ANCHOR /EQUIVALENT)
63 Amps Porcelain fuse unit (500 V)
100 Amps Porcelain fuse unit (500 V)
200 Amps Porcelain fuse unit (500 V)
Supply, delivey and fixing of CHANGE OVER SWITCHES
16 Amps three phase 500 V 4 pole Change over switch
32 Amps three phase 500 V 4 pole Change over switch
63 Amps three phase 500 V 4 pole Change over switch
100 Amps three phase 500 V 4 pole Change over switch
Supply, delivey and fixing of PVC INSULATED SINGLE CORE MULTI STRAND FIRE RETARDANT FLEXIBLE COPPER CABLE WITH ISI MARK CONFORMING TO IS
Supply, delivey and fixing of HRC - FUSES - HIGHER END
HRC - 16 Amps
HRC - 32 Amps
HRC - 63 Amps
HRC - 125 Amps
Supply and delivery of the following Electrical Works :consumable items at the site of work to carryout the general maintenace works
Voltmeter Digital - Three Phase Class 1-AC
Ammeter Digital - Three Phase Class 1-1A
20W 4 Feet LED Fitting with LED (Higher end)
LED OUTDOOR FITTINGS (LIGHT EMITTING DIODE) LOWER END 25W LED Street Light Fitting with LED
Supply and delivery of the following consumable items for Pump Set repairs at the site of work to carryout the general maintenace works
50mm GM Gate valve
65mm GM Gate valve
80mm GM Gate valve
R I Sheet
Bolts and Nuts - All sizes
50mm GI Pipe
65mm GI Pipe
80mm GI Pipe
100mm GI pipe
Supply, delivery and fixing of DI D/F Gate sluice/scour valves (soft seated) resilient seated soft sealing Gate Valves(Sluice Valves) with body Bonnet of Ductile cast iron of Grade GGG 40 or equivalent grade, Wedge fully rubber lined with EPDM replaceable spindle nut without gland packing and with 3 O- Ring protection on the shaft and seals of NBR and the valves should be of Vacuum tight and 100% leak proof with face to face dimensions as per BS 5163- 89/ISI 14846-2000/DIN 3202 F4. All the valves should be with electrostatic powder coating both inside and out side with pocket less straight through body passage. All the valves are to be compatible for buried application with pressure rating PN 10/16 and with 5 years warranty.
100mm DI Gate Valve
Supply, delivey and fixing of C.I. DOUBLE AIR VALVE AS PER ISI 14845/2000 AND WITH 5 YEARS WARRANTY
50mm CI Air Valve
SUMP CLEANING
Cleaning of all storage points like sumps, elevated reservoirs of various capacities available in this scheme at a frequency of once in two months including scrapping the inner side of compartment completely, scouring / dewatering / desilting using required machineries, materials, labour and all other incidental charges, application of bleaching powder/ solution etc complete.
For 15001 to 30000 lit cap sump
Desilting light or sandysoil or silt from collection well below water level including the charges for special tools & plants and air compressor etc complete
Bleaching powder of 34% concentration as per standard specification.
Item Rate BoQ
BoQ_Ver4.0
Name of the Bidder/ Bidding Firm / Company :
PRICE SCHEDULE-A2 (This BOQ template must not be modified/replaced by the bidder and the same should be uploaded after filling the relevent columns, else the bidder is liable to be rejected for this tender. Bidders are allowed to enter the Bidder Name and Values only)
NUMBER #
COMBINED WATER SUPPLY SCHEME TO SATHANUR AND 45 OTHER HABITATIONS IN TIRUVANNAMALAI DISTRICT
Operation and Maintenance of the Electro Mechanical installations, equipments, components, pipelines valves and appurtenances, water retaining structures including protecton of all schemee components from damages/ theft undertaking legal actions for such untoward incidents, preventive maintenance, disinfection and deliverance of water as per quality standards and supply of earmarked quantity of water to the beneficiaries as per Annexure .........., carrying out the O&M as per standard operating procedures, Acts and rules in force and as directed by TWAD Board Oficers and excluding cost towards attending leak, burst repair and replacement works to electro mechanical installations consumables for disinfection of water, cleaning of all water retaining structure, electricity . (2.479 MLD x 365 Days = 904.835 MLD)
Repair & Renewals and Leak & Bursts :
Attending Leaks in the PVC pipelines of this CWSS for the following items, as per the standard procedure including earthwork excavation, dewatering, removing, relaying, jointing, civil works, cost of materials and all other incidental charges, etc complete within the stipulated time limit as directed by the TWAD Board officers.
PVC 4 KSC Pipes_Minor Leak
90mm OD PVC 4 KSC pipes_Minor Leak
110mm OD PVC 4 KSC pipes_Minor Leak
140mm OD PVC 4 KSC pipes_Minor Leak
PVC 4 KSC Pipes_Major Leak
90mm OD PVC 4 KSC pipes_Major Leak
110mm OD PVC 4 KSC pipes_Major Leak
140mm OD PVC 4 KSC pipes_Major Leak
PVC 6 KSC Pipes_Minor Leak
90mm OD PVC 6 KSC pipes_Minor Leak
110mm OD PVC 6 KSC pipes_Minor Leak
140mm OD PVC 6 KSC pipes_Minor Leak
PVC 6 KSC Pipes_Major Leak
90mm OD PVC 6 KSC pipes_Major Leak
110mm OD PVC 6 KSC pipes_Major Leak
140mm OD PVC 6 KSC pipes_Major Leak
Attending Leaks/Bursts in the HDPE pipelines of this CWSS for the following items, as per the standard procedure including earthwork excavation, dewatering, removing, relaying, jointing by Electro fusion/butt Joint, civil works, cost of materials and all other incidental charges, etc complete within the stipulated time limit as directed by the TWAD Board officers.
HDPE PN 6 Pipes_Minor Leaks
90mm HDPE PN 6 pipes_Minor Leak
110mm HDPE PN 6 pipes_Minor Leak
140mm HDPE PN 6 pipes_Minor Leak
200mm HDPE PN 6 pipes_Minor Leak
HDPE PN 6 Pipes_Major Leaks
90mm HDPE PN 6 pipes_Major Leak
110mm HDPE PN 6 pipes_Major Leak
140mm HDPE PN 6 pipes_Major Leak
200mm HDPE PN 6 pipes_Major Leak
Attending leaks and bursts in GI pipes of various sizes including Supply and delivery of following G I PIPES (MEDIUM) AS PER IS 1239/PART I/2004 and Lowering GI pipes and specials in the trenches and laying to proper grade and alignment, jointing with GI Specials and as directed by the TWAD Officers
80mm GI Pipe leak above GL
100mm GI Pipe leak above GL
125mm GI Pipe leak above GL
150mm GI Pipe leak above GL
Attending joint (Collar) Leaks in the AC pipelines of this CWSS for the following items, as per the standard procedure including earthwork excavation, dewatering, removing, relaying, jointing, civil works, cost of materials and all incidental charges, etc complete within the stipulated time limit as specified in Clause 2.6.4 of General conditions of Contract
AC Pipe_Collar Leak
200mm AC_Collar Leak
250mm AC_Collar Leak
300mm AC_Collar Leak
350mm AC_Collar Leak
AC Pipe_Minor Leak centre crack
200mm AC Pipe_MS Cut Barrel
250mm AC Pipe_MS Cut Barrel
300mm AC Pipe_MS Cut Barrel
350mm AC Pipe_MS Cut Barrel
Attending joint Leaks and center crack in the PSC pipelines of this CWSS for the following items, as per the standard procedure including earthwork excavation, dewatering, removing, relaying, jointing, civil works, cost of materials and all incidental charges, etc complete within the stipulated time limit as specified in Clause 2.6.4 of General conditions of Contract
350mm PSC Pipe Collar Leak
350mm PSC Pipe Centre Crack MS Cut Barrel
Attending Leaks/Bursts in the O-PVC pipelines of this CWSS for the following items, as per the standard procedure including earthwork excavation, dewatering, removing, relaying, jointing, civil works, cost of materials and all incidental charges, etc complete within the stipulated time limit as specified in Clause 2.6.4 of General conditions of Contract
250mm O-PVC Pipe Leak
315mm O-PVC Pipe Leak
Attending Leaks/Bursts in the DI pipelines of this CWSS for the following items, as per the standard procedure including earthwork excavation, dewatering, removing, relaying, jointing, civil works, cost of materials and all incidental charges, etc complete within the stipulated time limit as specified in Clause 2.6.4 of General conditions of Contract
DI Pipes_Minor Leak
350mm DI pipes - Minor leak
Attending Leaks/Bursts in the MS pipelines damaged by highways, local bodies and etc., of this CWSS for the following items, as per the standard procedure including earthwork excavation, dewatering, removing, relaying, jointing, civil works, cost of materials and all incidental charges, etc complete within the stipulated time limit as specified in Clause 2.6.4 of General conditions of Contract
350mm MS pipes_Below GL
Labour for cutting open B.T. Roads (or) Maccadam road for laying water mains - 15 cm thick (SOR VOL II P.195)
For all size Pumping mains
Road Restoration with PCC 1:2:4 using 20 mm HBGS for the Concrete Road cut Portion after the pipes are laid, joined and tested complete and as directed by TWAD Board Officers - 15 cm thick
For all size Pumping mains
Supply and delivery of following sizes of UN PLASTICIZED O-PVC PIPES FOR POTABLE WATER SUPPLY AS PER IS 16647 / 2017 inclusive of transportation charges to stockyard excluding unloading anywhere in Tamilnadu etc, complete and as directed by the TWAD Board officers. (SOR VOL II P.11)
250mm O-PVC PIPE PN 12.5 Class 500
315mm O-PVC PIPE PN 12.5 Class 500
Supply and delivery of following sizes of HDPE PIPES - PE 100 AS PER IS 4984/2016 (Pre-Compounded Resin) inclusive of transportation charges to stockyard excluding unloading anywhere in Tamilnadu etc, complete and as directed by the TWAD Board officers. (SOR VOL II P.14)
200mm HDPE PN 6
140mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
Earth work excavation and depositing on bank with initial lead of 10 m and initial lift of 2m in narrow trenches for laying of pipes for water supply in the following types of soil
Hard stiff clay, stiff black cotton, hard red earth, shales, murrum gravel, stoney earth and earth mixed with small size boulders and hard gravelly soil. (SOR VOL II P.192)
250mm O PVC
315mm O PVC
200mm HDPE PN 6
140mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
Lowering of OPVC Pipes and specials in the trenches and laying to proper grade and alignment and as directed by the TWAD Officers. (SOR VOL II P.161)
250mm O PVC
315mm O PVC
Lowering HDPE pipes and specials to trench and laying to proper grade and alignment and as directed by the TWAD Officers. (SOR VOL II P.171)
200mm HDPE PN 6
140mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
Jointing OPVC-S/S pipes and specials with rubber gaskets (tyton joint) including cost of lubricants. (including cost of jointing materials) (SOR VOL II P.164)
250mm O PVC - 6m Length
315mm O PVC - 6m Length
Jointing HDPE Pipes and Specials by butt fusion welding / electro fusion welding joints using fusion equipment as per ISO 21307-2011 and as per IS 7634 (part-2) : 2012 including cost of hire charges for butt fusion equipment power supply arrangements etc., complete as per directed by TWAD Board Officers. (SOR VOL II P.184)
200mm HDPE PN 6
140mm HDPE PN 6
110mm HDPE PN 6
Refiling with excavated sand or other loose soil complying with standerd specification in layers of 15 cm thick well rammed and consolidated after pipes and specials are laid and tested. (SOR VOL II P.192)
250mm O PVC
315mm O PVC
200mm HDPE PN 6
140mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
Pumpsets
Carrying out the following repair works occuring during the maintenance period in the Electrical, Mechanical and Elctro-mechanical items to bring back the scheme / components into normal running conditition as per standard specification including all labour charges, cost of materials and all incidental charges within the stipulated time limit etc., complete as specified in Clause 2.8 of General conditions of Contract Part II etc as directed by TWAD Board officers
Attending the Rewinding, Repair and Renewal works in various capacity Open Well Submersible Pumpsets
Removing the Submersible pumpset by using tripod set after disconnecting the power supply cable and delivery pipe line fittings
1HP -OWS
3HP -OWS
5HP -OWS
7.5HP -OWS
10HP -OWS
15HP -OWS
Transporting the pumpset from Pump House to work shop.
1HP -OWS
3HP -OWS
5HP -OWS
7.5HP -OWS
10HP -OWS
15HP -OWS
Rewinding the submersible motor using best quality winding wire including cost of wire, Sleeve, other insulating and fibre class materials after deducting the cost of old materials.
1HP -OWS
3HP -OWS
5HP -OWS
7.5HP -OWS
10HP -OWS
15HP -OWS
Reconditioning the worn-out shaft and fittings, impeller and Gun Metal/ SS Bushes including cost of lath work & labour charges etc.,
1HP -OWS
3HP -OWS
5HP -OWS
7.5HP -OWS
10HP -OWS
15HP -OWS
Replacement of carbon type thrust bearing and pumpside Gun Metal Bush including cost of labour charges after deducting the cost of old material
1HP -OWS
3HP -OWS
5HP -OWS
7.5HP -OWS
10HP -OWS
15HP -OWS
Transporting charges for Submersible pumpset from work shop to Pump House after attending repair works.
1HP -OWS
3HP -OWS
5HP -OWS
7.5HP -OWS
10HP -OWS
15HP -OWS
Re-erection of pumpset in the Sump / Well by using tripod set and required Rubber washer and Bolt & Nuts and connecting the power supply cable and delivery pipeline arrangements testing to trial pumping.
1HP -OWS
3HP -OWS
5HP -OWS
7.5HP -OWS
10HP -OWS
15HP -OWS
Attending the Rewinding, Repair and Renewal works in Monoblock Pumpset
3HP_Monoblock
Removing the Monblock Centrifugal Pumpset from the Bed assembly by using contractors tools and materials after disconnecting the power supply cable and delivery pipe line fittings with required dummy plate arrangements.
Transporting the pumpset from the Pumping Station to work shop.
Removing the Burnt winding materials from the stator slots and cleaning the stator and rotor assembly by using contractor tools and materials
Reconditioning the worn-out shaft and fittings, impeller and Rope gland bush including cost of lath work & labour charges etc.,
Rewinding the Monblock Centrifugal Motor using best quality winding wire including cost of wire, Sleeve, other insulating and fibre class materials after deducting the cost of old materials.
Replacement of driven end (No: XXXX) and Non driven end (No:XXXX) Bearings suitable for Monblock Centrifugal Motor including the cost of Bearing and labour charges after deducting the cost of old materials.
Replacement of cooling fan at motor end and Terminal Board for suitable for Monblock Centrifugal Pumpset and labour charges after deducting the cost of old materials.
Transporting charges for Monblock Centrifugal Pumpset from work shop to Pump House after attending repair works.
Re-erection of pumpset in the Sump / Well by using required Rubber washer and Bolt & Nuts and connecting the power supply cable and delivery pipe line arrangements, testing and trial pumping.
Attending the Rewinding and replacement of bearings of Induction Motor for Horizontal Split Casing Pumpsets
20HP -HSC_Motor
Charges for removing the motor from bed after disconnection of power supply cable, Earthing line and Coupling arrangements by using contractor tools and materials.
Transportation charges for conveying the motor from the Booster Station to Our work shop including loading and unloading charges.
Labour Charges for removing the two end side cover with fan arrangements and the damaged driven end and non driven end bearings.
Charges for removing the burnt wires from the rotor assembly and cleaning and checking the slots of rotor and labour charges for rewinding of Centrifugal Squirrel Cage Induction Motor after deducting the cost of old materials and including suppy and delivery of Class ‘F’ Insulation Super enameled Copper wire, required for rewinding and Fiber Glass wire, Fiber Glass Sleeves, Class ‘F’ insulation paper, Copper Socket and FG thread required for rewinding of Squirrel Cage Induction Motor
Labour Charges for reconditioning the worn out shaft for driven end and non driven end bearing seating, knurling, bend checking, and etc.,
Supply and delivery of Driven End and Non Driven End bearings suitable for the required Induction Motor
Labour Charges fixing the DE and NDE bearings correctly and neatly with required lubrications by contractors tools & Materials
Transportation charges for conveying the motor from work shop to Pumping Station
Charges for reassembling the motor with bed and pump coupling, alignment checking connecting power supply cable, including required bolt and Nuts and testing trial running etc.,
Attending the Repair and Reconditioning works of various capacities of Horizontal Split Casing Pumpsets
20HP -HSC_Pump
Charges for removing the motor from bed assembly after dismantling of Coupling arrangements and removing the pump assembly and including the provision of dummy flange arrangements by using contractor tools and materials.
Transportation charges for conveying the Pump assembly from the Pumping Station to work shop including loading and unloading charges.
Labour Charges for removing the impeller by using hydralic system, DE and NDE Bearings
Labour Charges for reconditioning the worn out shaft including welding the shaft to suit the impeller and suit the driven end and non driven end bearing seating, knurling, bend checking and etc.,
Supply, delivery and fixing of Shaft sleeves in Gun metal including machining charges and making key ways after deducting the scrap materials
Balancing of Rotor with impeller both dyanamically and Hydralically by using required dyanamic balancing machine
Supply, delivery and fixing of Gunmetal seal rings for impeller neck including machining charges after deducting the scrap materials
Supply and delivery of Driven End and Non Driven End bearings
Labour Charges fixing the DE and NDE bearings correctly and neatly with required lubrications by contractors tools & Materials
Transportation charges for conveying the Pump assembly from work shop to Pumping Station.
Charges for reassembling the Pump with Motor by using pulley and alignment checking, including required bolt and Nuts and testing trial running etc.,
Attending the Rewinding and replacement of bearings of Induction Motor for Vertical Turbine Pumpset
60HP -VT_Motor
Charges for removing the motor from bed after disconnection of power supply cable, Earthing line and Coupling arrangements by using contractor tools and materials.
Transportation charges for conveying the motor from the Station to Our work shop including loading and unloading charges.
Labour Charges for removing the two end side cover with fan arrangements and Dismantling the damaged NDE Side ball Bearing from the motor after removing the Rachet assembly load bearing safely and Fixing the New ball Bearing in the appropriate place with required lubricants without any damage to the motor shaft and winding after deducting the old damaged materials.
Charges for removing the burnt wires from the rotor assembly and cleaning and checking the slots of rotor and labour charges for rewinding of Centrifugal Squirrel Cage Induction Motor after deducting the cost of old materials and including suppy and delivery of Class ‘F’ Insulation Super enameled Copper wire, required for rewinding and Fiber Glass wire, Fiber Glass Sleeves, Class ‘F’ insulation paper, Copper Socket and FG thread required for rewinding of Squirrel Cage Induction Motor
Labour Charges for reconditioning the worn out shaft for driven end and non driven end bearing seating, knurling, bend checking, and etc.,
Supply and delivery of Non Driven End Deep Grove ball Bearing SKF Make suitable for the Squirrel Gage Induction Motor.
Labour Charges fixing the NDE bearings correctly and neatly with required lubrications by contractors tools & Materials
Transportation charges for conveying the motor from work shop to pumping Station
Charges for reassembling the motor with bed and pump coupling, alignment checking connecting power supply cable, including required bolt and Nuts and testing trial running etc.,
Attending the Repair and Reconditioning works of various capacities of Vertical Turbine Pumps
60HP -VT_Pump
Charges for Removing the Hollow shaft Squirrel cage Induction Motor after disconnecting the Power supply Cable, Discharge Head, Head Shaft and Stuffing Box by using contractor tools at Collector Well / Collection Sump
Charges for removing the all Column pipes of VT Pumpset each 1.5 m / 2.00 m to length and bowl assemblly for attending Pump repair works
Transportation charges for conveying the VT Pump bowl assembly from Collector Well Pump room to Work Shop including usage of trolley along the Foot bridge and Van
Reconditioning of Stuffing Box for providing bronze bush suitable for fixing thr Rope Gland and Head Shaft to avoid frequent damaging of rope and to avoid spreading of more leakage water from the Rope Gland including lath works etc., complete.
Charges for Lathe work of reconditioning of Pump SS Shaft with balancing, SS Bushes and sleeves, charges for Spider bore nd outer dimension phase out lath works, reconditioning of impeller and impeller ring & charges fixing the bearing and bronze bushes in the bowl assembly including correct setting of impeller allignment etc complete
Transportation charges for conveying the VT Pump bowl assembly from our work shop to Collector Well Pump room including usage of trolley along the Foot bridge and Van
Charges for reassembling the all Column pipes of Turbine Pump set and bowl assemblly after attending Pump repair works in the proper allignment after attending the cleaning and painting work in the coloumn pipe and body of the bowl assembly
Re errection of reconditioned stuffing box, new Head shaft, Discharge head and Motor, fixing the Rachet load bearing assembly including filling of required 90 grade oil and Connecting the 440V AC incoming Cable to the Motor Terminal and fixing new rope in the rope gland and Checking Motor Pumpset Alignment and Rotation and testing with load etc.,Complete
SUPPLY AND DELIVERY OF SERVICE CONNECTION ACCESSORIES L.T. 1100V PVC ALUMINIUM ARMOURED UNDER GROUND CABLE WITH ISI MARK
25 Sq.mm 3.5 Core
35 Sq.mm 3.5 Core
50 Sq.mm 3.5 Core
70 Sq.mm 3.5 Core
95 Sq.mm 3.5 Core
120 Sq.mm 3.5 Core
SUPPLY AND DELIVERY OF L.T. CABLES following size sq mm 3 CORE 1.1 KV GRADE ARMOURED ALUMINIUM CONDUCTOR CROSS LINKED POLY ETHYLENE INSULATED PVC SHEATHED CABLES CONFORMING TO IS 7098 (PART I)/1988 WITH ISI MARKING
25 Sq.mm 3 Core
35 Sq.mm 3 Core
50 Sq.mm 3 Core
70 Sq.mm 3Core
SUPPLY AND DELIVERY OF PVC INSULATED AND SHEATHED following sq mm 3 CORE FLAT TYPE COPPER CABLE CONFORMING TO IS 694/1989
SUPPLY AND DELIVERY OF 150mm dia Pressure Gauge and Vaccum guage including all accessories as per specification (For Suction and Delivery to be mounted on wall on Teak Wood Board)
Supply, delivey and fixing of MOULDED CASE CIRCUIT BREAKER (MCCB) WITH THERMO MAGNETIC RELEASE - 4 Pole
Range - 63/100A
Range - 125A
Range - 160A
Range - 250A
Supply, delivey and fixing of RATE FOR MIXED DI-ELECTRIC CAPACITOR WITH TNEB TEST CERTIFICATE WITH ACCESSORIES INCLUDING BANKING CONFORMIING TO IS 2834.
Supply, delivey and fixing of Electro magnetic contactors of suitable capacity in AC Three Phase rating, conforming to IS/IEC 60947-4-1.
Supply, delivey and fixing of Overload Relays: Directly operated Bimetallic Thermal overload relay which operates in case of overload and also in case of under voltage with manual and auto reset mode.
Supply, delivey and fixing of Preventer – Single Phasing - Electric Motor protection device against single phasing. The device should protect the motor against single phasing, reverse phasing and unbalance supply. The device should be suitable for any auxillary device and have provisions for mounting in panel boards. Operate without need of any auxiliary supply.
Electric Motor protection device against dry running. The device should protect the motor against Dry running. The device should be suitable for any auxillary device and have provisions for mounting in panel boards. Operate without need of any auxiliary supply
Supply, delivey and fixing of FUSE UNITS (ANCHOR /EQUIVALENT)
63 Amps Porcelain fuse unit (500 V)
100 Amps Porcelain fuse unit (500 V)
200 Amps Porcelain fuse unit (500 V)
Supply, delivey and fixing of CHANGE OVER SWITCHES
16 Amps three phase 500 V 4 pole Change over switch
32 Amps three phase 500 V 4 pole Change over switch
63 Amps three phase 500 V 4 pole Change over switch
100 Amps three phase 500 V 4 pole Change over switch
125 Amps three phase 500 V 4 pole Change over switch
Supply, delivey and fixing of PVC INSULATED SINGLE CORE MULTI STRAND FIRE RETARDANT FLEXIBLE COPPER CABLE WITH ISI MARK CONFORMING TO IS
Supply, delivey and fixing of HRC - FUSES - HIGHER END
HRC - 16 Amps
HRC - 32 Amps
HRC - 63 Amps
HRC - 125 Amps
HRC - 160 Amps
HRC - 200 Amps
Supply and delivery of the following Electrical Works :consumable items at the site of work to carryout the general maintenace works
Voltmeter Digital - Three Phase Class 1-AC
Ammeter Digital - Three Phase Class 1-1A
20W 4 Feet LED Fitting with LED (Higher end)
LED OUTDOOR FITTINGS (LIGHT EMITTING DIODE) LOWER END 25W LED Street Light Fitting with LED
Supply and delivery of the following consumable items for Pump Set repairs at the site of work to carryout the general maintenace works
50mm GM Gate valve
65mm GM Gate valve
80mm GM Gate valve
100mm GM Gate valve
R I Sheet
Bolts and Nuts - All sizes
50mm GI Pipe
65mm GI Pipe
80mm GI Pipe
100mm GI pipe
125mm GI pipe
150mm GI pipe
Supply, delivery and fixing of DI D/F Gate sluice/scour valves (soft seated) resilient seated soft sealing Gate Valves(Sluice Valves) with body Bonnet of Ductile cast iron of Grade GGG 40 or equivalent grade, Wedge fully rubber lined with EPDM replaceable spindle nut without gland packing and with 3 O- Ring protection on the shaft and seals of NBR and the valves should be of Vacuum tight and 100% leak proof with face to face dimensions as per BS 5163- 89/ISI 14846-2000/DIN 3202 F4. All the valves should be with electrostatic powder coating both inside and out side with pocket less straight through body passage. All the valves are to be compatible for buried application with pressure rating PN 10/16 and with 5 years warranty.
100mm DI Gate Valve
150mm DI Gate Valve
200mm DI Gate Valve
250mm DI Gate Valve
300mm DI Gate Valve
Manufacture, Supply and Delivery of Tamper proof DI single chamber double orifice triple function (ventilating, admiting & ventilating during operation) air release valve with pressure rating PN 10/16 with body and cover made of Ductile Iron of Grade GGG 40 or GGG 50, conforming to IS 1865 with Food Grade Epoxy Powder coating (EP-P) inside and for outside of colour blue RAL 5005. All internal parts such as float, shell etc., cover bolts, made of Austenitic alloy steel of SS AISI 304/316. The float shall be made of Polytetrafluroethylene/ Austenitic alloy steel of AISI 304/316. Gaskets and seals of EPDM / Neoprene rubber for TWAD Board works anywhere in Tamil Nadu and with 5 years warranty
50mm DI Air Valve
80mm DI Air Valve
Supply, delivey and fixing of C.I. DOUBLE AIR VALVE AS PER ISI 14845/2000 AND WITH 5 YEARS WARRANTY
40mm CI Air Valve
50mm CI Air Valve
80mm CI Air Valve
SUMP CLEANING
Cleaning of all storage points like sumps, elevated reservoirs of various capacities available in this scheme at a frequency of once in two months including scrapping the inner side of compartment completely, scouring / dewatering / desilting using required machineries, materials, labour and all other incidental charges, application of bleaching powder/ solution etc complete.
For 75001 to 100000 lit cap sump
For 175001 to 200000 lit cap sump
For 200001 to 300000 lit cap sump
Desilting light or sandysoil or silt from collection well below water level including the charges for special tools & plants and air compressor etc complete
Supply, delivery and application of disinfection dosages as per standard norms / guidelines including cost of all disinfectents (Such as bleaching powder, chlorine cylinder, silver ionization rods, sodium hypochlorite solution, common salt as applicable to this CWSS), labour charges and all incidental charges for disinfection of the water supplied from this CWSS to ensure the portable quality of disinfected water at all delivery points / tail ends, testing of water samples including additional / required / instructed dosage during the period of Flood/ Calamities etc., complete.
Supply delivery of Bleaching Powder as per Relevant IS Specification
Supply delivery of Liquid Chlorine as per Relevant IS Specification
Supply delivery of Alum as per Relevant IS Specification
COMBINED WATER SUPPLY SCHEME TO VANAPURAM--LADAVARAM AND 88 OTHER HABITATIONS IN TIRUVANNAMALAI DISTRICT
Operation and Maintenance of the Electro Mechanical installations, equipments, components, pipelines valves and appurtenances, water retaining structures including protecton of all schemee components from damages/ theft undertaking legal actions for such untoward incidents, preventive maintenance, disinfection and deliverance of water as per quality standards and supply of earmarked quantity of water to the beneficiaries as per Annexure .........., carrying out the O&M as per standard operating procedures, Acts and rules in force and as directed by TWAD Board Oficers and excluding cost towards attending leak, burst repair and replacement works to electro mechanical installations consumables for disinfection of water, cleaning of all water retaining structure, electricity .
Repair & Renewals and Leak & Bursts :
Attending Leaks in the PVC pipelines of this CWSS for the following items, as per the standard procedure including earthwork excavation, dewatering, removing, relaying, jointing, civil works, cost of materials and all other incidental charges, etc complete within the stipulated time limit as directed by the TWAD Board officers.
PVC 4 KSC Pipes_Minor Leak
63mm OD PVC 4 KSC pipes_Minor Leak
75mm OD PVC 4 KSC pipes_Minor Leak
90mm OD PVC 4 KSC pipes_Minor Leak
110mm OD PVC 4 KSC pipes_Minor Leak
140mm OD PVC 4 KSC pipes_Minor Leak
200mm OD PVC 4 KSC pipes_Minor Leak
250mm OD PVC 4 KSC pipes_Major Leak
PVC 4 KSC Pipes_Major Leak
63mm OD PVC 4 KSC pipes_Major Leak
75mm OD PVC 4 KSC pipes_Major Leak
90mm OD PVC 4 KSC pipes_Major Leak
110mm OD PVC 4 KSC pipes_Major Leak
140mm OD PVC 4 KSC pipes_Major Leak
200mm OD PVC 4 KSC pipes_Major Leak
250mm OD PVC 4 KSC pipes_Major Leak
PVC 6 KSC Pipes_Minor Leak
50mm OD PVC 6 KSC pipes_Minor Leak
75mm OD PVC 6 KSC pipes_Minor Leak
90mm OD PVC 6 KSC pipes_Minor Leak
110mm OD PVC 6 KSC pipes_Minor Leak
140mm OD PVC 6 KSC pipes_Minor Leak
200mm OD PVC 6 KSC pipes_Minor Leak
250mm OD PVC 6 KSC pipes_Major Leak
PVC 6 KSC Pipes_Major Leak
50mm OD PVC 6 KSC pipes_Major Leak
75mm OD PVC 6 KSC pipes_Major Leak
90mm OD PVC 6 KSC pipes_Major Leak
110mm OD PVC 6 KSC pipes_Major Leak
140mm OD PVC 6 KSC pipes_Major Leak
200mm OD PVC 6 KSC pipes_Major Leak
250mm OD PVC 6 KSC pipes_Major Leak
Attending Leaks/Bursts in the HDPE pipelines of this CWSS for the following items, as per the standard procedure including earthwork excavation, dewatering, removing, relaying, jointing by Electro fusion/butt Joint, civil works, cost of materials and all other incidental charges, etc complete within the stipulated time limit as directed by the TWAD Board officers.
HDPE PN 6 Pipes_Minor Leaks
63mm HDPE PN 6 pipes_Minor Leak
75mm HDPE PN 6 pipes_Minor Leak
90mm HDPE PN 6 pipes_Minor Leak
110mm HDPE PN 6 pipes_Minor Leak
140mm HDPE PN 6 pipes_Minor Leak
200mm HDPE PN 6 pipes_Minor Leak
HDPE PN 6 Pipes_Major Leaks
63mm HDPE PN 6 pipes_Major Leak
75mm HDPE PN 6 pipes_Major Leak
90mm HDPE PN 6 pipes_Major Leak
110mm HDPE PN 6 pipes_Major Leak
140mm HDPE PN 6 pipes_Major Leak
200mm HDPE PN 6 pipes_Major Leak
Attending leaks and bursts in GI pipes of various sizes including Supply and delivery of following G I PIPES (MEDIUM) AS PER IS 1239/PART I/2004 and Lowering GI pipes and specials in the trenches and laying to proper grade and alignment, jointing with GI Specials and as directed by the TWAD Officers
50mm GI Pipe leak above GL
65mm GI Pipe leak above GL
80mm GI Pipe leak above GL
100mm GI Pipe leak above GL
125mm GI Pipe leak above GL
150mm GI Pipe leak above GL
Attending Leaks/Bursts in the O-PVC pipelines of this CWSS for the following items, as per the standard procedure including earthwork excavation, dewatering, removing, relaying, jointing, civil works, cost of materials and all incidental charges, etc complete within the stipulated time limit as specified in Clause 2.6.4 of General conditions of Contract
250mm O-PVC Pipe Leak
Attending Leaks/Bursts in the DI pipelines of this CWSS for the following items, as per the standard procedure including earthwork excavation, dewatering, removing, relaying, jointing, civil works, cost of materials and all incidental charges, etc complete within the stipulated time limit as specified in Clause 2.6.4 of General conditions of Contract
DI Pipes_Minor Leak
150mm DI pipes - Minor leak
200mm DI pipes - Minor leak
250mm DI pipes - Minor leak
DI Pipes_Minor Leak
150mm DI pipes - Major leak
200mm DI pipes - Major leak
250mm DI pipes - Major leak
Labour for cutting open B.T. Roads (or) Maccadam road for laying water mains - 15 cm thick (SOR VOL II P.195)
For all size Pumping mains
Road Restoration with PCC 1:2:4 using 20 mm HBGS for the Concrete Road cut Portion after the pipes are laid, joined and tested complete and as directed by TWAD Board Officers - 15 cm thick
For all size Pumping mains
Supply and delivery of following sizes of UN PLASTICIZED O-PVC PIPES FOR POTABLE WATER SUPPLY AS PER IS 16647 / 2017 inclusive of transportation charges to stockyard excluding unloading anywhere in Tamilnadu etc, complete and as directed by the TWAD Board officers. (SOR VOL II P.11)
250mm O-PVC PIPE PN 12.5 Class 500
Supply and delivery of following sizes of HDPE PIPES - PE 100 AS PER IS 4984/2016 (Pre-Compounded Resin) inclusive of transportation charges to stockyard excluding unloading anywhere in Tamilnadu etc, complete and as directed by the TWAD Board officers. (SOR VOL II P.14)
200mm HDPE PN 6
140mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
75mm HDPE PN 6
63mm HDPE PN 6
Earth work excavation and depositing on bank with initial lead of 10 m and initial lift of 2m in narrow trenches for laying of pipes for water supply in the following types of soil
Hard stiff clay, stiff black cotton, hard red earth, shales, murrum gravel, stoney earth and earth mixed with small size boulders and hard gravelly soil. (SOR VOL II P.192)
250mm O PVC
200mm HDPE PN 6
140mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
75mm HDPE PN 6
63mm HDPE PN 6
Lowering of OPVC Pipes and specials in the trenches and laying to proper grade and alignment and as directed by the TWAD Officers. (SOR VOL II P.161)
250mm O PVC
Lowering HDPE pipes and specials to trench and laying to proper grade and alignment and as directed by the TWAD Officers. (SOR VOL II P.171)
200mm HDPE PN 6
140mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
75mm HDPE PN 6
63mm HDPE PN 6
Jointing OPVC-S/S pipes and specials with rubber gaskets (tyton joint) including cost of lubricants. (including cost of jointing materials) (SOR VOL II P.164)
250mm O PVC - 6m Length
Jointing HDPE Pipes and Specials by butt fusion welding / electro fusion welding joints using fusion equipment as per ISO 21307-2011 and as per IS 7634 (part-2) : 2012 including cost of hire charges for butt fusion equipment power supply arrangements etc., complete as per directed by TWAD Board Officers. (SOR VOL II P.184)
200mm HDPE PN 6
140mm HDPE PN 6
110mm HDPE PN 6
Refiling with excavated sand or other loose soil complying with standerd specification in layers of 15 cm thick well rammed and consolidated after pipes and specials are laid and tested. (SOR VOL II P.192)
250mm O PVC
200mm HDPE PN 6
140mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
75mm HDPE PN 6
63mm HDPE PN 6
Pumpsets
Carrying out the following repair works occuring during the maintenance period in the Electrical, Mechanical and Elctro-mechanical items to bring back the scheme / components into normal running conditition as per standard specification including all labour charges, cost of materials and all incidental charges within the stipulated time limit etc., complete as specified in Clause 2.8 of General conditions of Contract Part II etc as directed by TWAD Board officers
Attending the Rewinding, Repair and Renewal works in various capacity Open Well Submersible Pumpsets
Removing the Submersible pumpset by using tripod set after disconnecting the power supply cable and delivery pipe line fittings
1HP -OWS
2HP -OWS
3HP -OWS
5HP -OWS
7.5HP -OWS
10HP -OWS
20HP -OWS
40HP -OWS
Transporting the pumpset from Pump House to work shop.
1HP -OWS
2HP -OWS
3HP -OWS
5HP -OWS
7.5HP -OWS
10HP -OWS
20HP -OWS
40HP -OWS
Rewinding the submersible motor using best quality winding wire including cost of wire, Sleeve, other insulating and fibre class materials after deducting the cost of old materials.
1HP -OWS
2HP -OWS
3HP -OWS
5HP -OWS
7.5HP -OWS
10HP -OWS
20HP -OWS
40HP -OWS
Reconditioning the worn-out shaft and fittings, impeller and Gun Metal/ SS Bushes including cost of lath work & labour charges etc.,
1HP -OWS
2HP -OWS
3HP -OWS
5HP -OWS
7.5HP -OWS
10HP -OWS
20HP -OWS
40HP -OWS
Replacement of carbon type thrust bearing and pumpside Gun Metal Bush including cost of labour charges after deducting the cost of old material
1HP -OWS
2HP -OWS
3HP -OWS
5HP -OWS
7.5HP -OWS
10HP -OWS
20HP -OWS
40HP -OWS
Transporting charges for Submersible pumpset from work shop to Pump House after attending repair works.
1HP -OWS
2HP -OWS
3HP -OWS
5HP -OWS
7.5HP -OWS
10HP -OWS
20HP -OWS
40HP -OWS
Re-erection of pumpset in the Sump / Well by using tripod set and required Rubber washer and Bolt & Nuts and connecting the power supply cable and delivery pipeline arrangements testing to trial pumping.
1HP -OWS
2HP -OWS
3HP -OWS
5HP -OWS
7.5HP -OWS
10HP -OWS
20HP -OWS
40HP -OWS
Attending the Rewinding, Repair and Renewal works in Monoblock Pumpset
3HP_Monoblock
Removing the Monblock Centrifugal Pumpset from the Bed assembly by using contractors tools and materials after disconnecting the power supply cable and delivery pipe line fittings with required dummy plate arrangements.
Transporting the pumpset from the Pumping Station to work shop.
Removing the Burnt winding materials from the stator slots and cleaning the stator and rotor assembly by using contractor tools and materials
Reconditioning the worn-out shaft and fittings, impeller and Rope gland bush including cost of lath work & labour charges etc.,
Rewinding the Monblock Centrifugal Motor using best quality winding wire including cost of wire, Sleeve, other insulating and fibre class materials after deducting the cost of old materials.
Replacement of driven end (No: XXXX) and Non driven end (No:XXXX) Bearings suitable for Monblock Centrifugal Motor including the cost of Bearing and labour charges after deducting the cost of old materials.
Replacement of cooling fan at motor end and Terminal Board for suitable for Monblock Centrifugal Pumpset and labour charges after deducting the cost of old materials.
Transporting charges for Monblock Centrifugal Pumpset from work shop to Pump House after attending repair works.
Re-erection of pumpset in the Sump / Well by using required Rubber washer and Bolt & Nuts and connecting the power supply cable and delivery pipe line arrangements, testing and trial pumping.
SUPPLY AND DELIVERY OF SERVICE CONNECTION ACCESSORIES L.T. 1100V PVC ALUMINIUM ARMOURED UNDER GROUND CABLE WITH ISI MARK
25 Sq.mm 3.5 Core
35 Sq.mm 3.5 Core
50 Sq.mm 3.5 Core
70 Sq.mm 3.5 Core
SUPPLY AND DELIVERY OF L.T. CABLES following size sq mm 3 CORE 1.1 KV GRADE ARMOURED ALUMINIUM CONDUCTOR CROSS LINKED POLY ETHYLENE INSULATED PVC SHEATHED CABLES CONFORMING TO IS 7098 (PART I)/1988 WITH ISI MARKING
25 Sq.mm 3 Core
35 Sq.mm 3 Core
SUPPLY AND DELIVERY OF PVC INSULATED AND SHEATHED following sq mm 3 CORE FLAT TYPE COPPER CABLE CONFORMING TO IS 694/1989
SUPPLY AND DELIVERY OF 150mm dia Pressure Gauge and Vaccum guage including all accessories as per specification (For Suction and Delivery to be mounted on wall on Teak Wood Board)
Supply, delivey and fixing of MOULDED CASE CIRCUIT BREAKER (MCCB) WITH THERMO MAGNETIC RELEASE - 4 Pole
Range - 63/100A
Range - 125A
Supply, delivey and fixing of RATE FOR MIXED DI-ELECTRIC CAPACITOR WITH TNEB TEST CERTIFICATE WITH ACCESSORIES INCLUDING BANKING CONFORMIING TO IS 2834.
Supply, delivey and fixing of Electro magnetic contactors of suitable capacity in AC Three Phase rating, conforming to IS/IEC 60947-4-1.
Supply, delivey and fixing of Overload Relays: Directly operated Bimetallic Thermal overload relay which operates in case of overload and also in case of under voltage with manual and auto reset mode.
Supply, delivey and fixing of Preventer – Single Phasing - Electric Motor protection device against single phasing. The device should protect the motor against single phasing, reverse phasing and unbalance supply. The device should be suitable for any auxillary device and have provisions for mounting in panel boards. Operate without need of any auxiliary supply.
Electric Motor protection device against dry running. The device should protect the motor against Dry running. The device should be suitable for any auxillary device and have provisions for mounting in panel boards. Operate without need of any auxiliary supply
Supply, delivey and fixing of FUSE UNITS (ANCHOR /EQUIVALENT)
63 Amps Porcelain fuse unit (500 V)
100 Amps Porcelain fuse unit (500 V)
200 Amps Porcelain fuse unit (500 V)
Supply, delivey and fixing of CHANGE OVER SWITCHES
16 Amps three phase 500 V 4 pole Change over switch
32 Amps three phase 500 V 4 pole Change over switch
63 Amps three phase 500 V 4 pole Change over switch
100 Amps three phase 500 V 4 pole Change over switch
Supply, delivey and fixing of PVC INSULATED SINGLE CORE MULTI STRAND FIRE RETARDANT FLEXIBLE COPPER CABLE WITH ISI MARK CONFORMING TO IS
Supply, delivey and fixing of HRC - FUSES - HIGHER END
HRC - 16 Amps
HRC - 32 Amps
HRC - 63 Amps
HRC - 125 Amps
Supply and delivery of the following Electrical Works :consumable items at the site of work to carryout the general maintenace works
Voltmeter Digital - Three Phase Class 1-AC
Ammeter Digital - Three Phase Class 1-1A
20W 4 Feet LED Fitting with LED (Higher end)
LED OUTDOOR FITTINGS (LIGHT EMITTING DIODE) LOWER END 25W LED Street Light Fitting with LED
Supply and delivery of the following consumable items for Pump Set repairs at the site of work to carryout the general maintenace works
50mm GM Gate valve
65mm GM Gate valve
80mm GM Gate valve
100mm GM Gate valve
R I Sheet
Bolts and Nuts - All sizes
50mm GI Pipe
65mm GI Pipe
80mm GI Pipe
100mm GI pipe
125mm GI pipe
150mm GI pipe
Supply, delivery and fixing of DI D/F Gate sluice/scour valves (soft seated) resilient seated soft sealing Gate Valves(Sluice Valves) with body Bonnet of Ductile cast iron of Grade GGG 40 or equivalent grade, Wedge fully rubber lined with EPDM replaceable spindle nut without gland packing and with 3 O- Ring protection on the shaft and seals of NBR and the valves should be of Vacuum tight and 100% leak proof with face to face dimensions as per BS 5163- 89/ISI 14846-2000/DIN 3202 F4. All the valves should be with electrostatic powder coating both inside and out side with pocket less straight through body passage. All the valves are to be compatible for buried application with pressure rating PN 10/16 and with 5 years warranty.
100mm DI Gate Valve
150mm DI Gate Valve
200mm DI Gate Valve
250mm DI Gate Valve
Manufacture, Supply and Delivery of Tamper proof DI single chamber double orifice triple function (ventilating, admiting & ventilating during operation) air release valve with pressure rating PN 10/16 with body and cover made of Ductile Iron of Grade GGG 40 or GGG 50, conforming to IS 1865 with Food Grade Epoxy Powder coating (EP-P) inside and for outside of colour blue RAL 5005. All internal parts such as float, shell etc., cover bolts, made of Austenitic alloy steel of SS AISI 304/316. The float shall be made of Polytetrafluroethylene/ Austenitic alloy steel of AISI 304/316. Gaskets and seals of EPDM / Neoprene rubber for TWAD Board works anywhere in Tamil Nadu and with 5 years warranty
50mm DI Air Valve
80mm DI Air Valve
Supply, delivey and fixing of C.I. DOUBLE AIR VALVE AS PER ISI 14845/2000 AND WITH 5 YEARS WARRANTY
40mm CI Air Valve
50mm CI Air Valve
80mm CI Air Valve
SUMP CLEANING
Cleaning of all storage points like sumps, elevated reservoirs of various capacities available in this scheme at a frequency of once in two months including scrapping the inner side of compartment completely, scouring / dewatering / desilting using required machineries, materials, labour and all other incidental charges, application of bleaching powder/ solution etc complete.
For 75001 to 100000 lit cap sump
For 125001 to 150000 lit cap sump
For 175001 to 200000 lit cap sump
For 200001 to 300000 lit cap sump
Desilting light or sandysoil or silt from collection well below water level including the charges for special tools & plants and air compressor etc complete
Supply, delivery and application of disinfection dosages as per standard norms / guidelines including cost of all disinfectents (Such as bleaching powder, chlorine cylinder, silver ionization rods, sodium hypochlorite solution, common salt as applicable to this CWSS), labour charges and all incidental charges for disinfection of the water supplied from this CWSS to ensure the portable quality of disinfected water at all delivery points / tail ends, testing of water samples including additional / required / instructed dosage during the period of Flood/ Calamities etc., complete.
Supply delivery of Bleaching Powder as per Relevant IS Specification
Supply delivery of Liquid Chlorine as per Relevant IS Specification
Supply delivery of Alum as per Relevant IS Specification
COMBINED WATER SUPPLY SCHEME TO KILPENNATHUR TOWN PANCHAYAT AND 157 HABITATIONS IN KILPENNATHUR UNION IN TIRUVANNAMALAI DISTRICT
Operation and Maintenance of the Electro Mechanical installations, equipments, components, pipelines valves and appurtenances, water retaining structures including protecton of all schemee components from damages/ theft undertaking legal actions for such untoward incidents, preventive maintenance, disinfection and deliverance of water as per quality standards and supply of earmarked quantity of water to the beneficiaries as per Annexure .........., carrying out the O&M as per standard operating procedures, Acts and rules in force and as directed by TWAD Board Oficers and excluding cost towards attending leak, burst repair and replacement works to electro mechanical installations consumables for disinfection of water, cleaning of all water retaining structure, electricity .
Repair & Renewals and Leak & Bursts :
Attending Leaks/Bursts in the PVC pipelines of this CWSS for the following items, as per the standard procedure including earthwork excavation, dewatering, removing, relaying, jointing, civil works, cost of materials and all other incidental charges, etc complete within the stipulated time limit as directed by the TWAD Board officers.
PVC 4 KSC Pipes_Minor Leak
63mm OD PVC 4 KSC pipes_Minor Leak
75mm OD PVC 4 KSC pipes_Minor Leak
90mm OD PVC 4 KSC pipes_Minor Leak
110mm OD PVC 4 KSC pipes_Minor Leak
140mm OD PVC 4 KSC pipes_Minor Leak
160mm OD PVC 4 KSC pipes_Minor Leak
200mm OD PVC 4 KSC pipes_Minor Leak
250mm OD PVC 4 KSC pipes_Major Leak
PVC 4 KSC Pipes_Minor Leak
63mm OD PVC 4 KSC pipes_Major Leak
75mm OD PVC 4 KSC pipes_Major Leak
90mm OD PVC 4 KSC pipes_Major Leak
110mm OD PVC 4 KSC pipes_Major Leak
140mm OD PVC 4 KSC pipes_Major Leak
160mm OD PVC 4 KSC pipes_Major Leak
200mm OD PVC 4 KSC pipes_Major Leak
250mm OD PVC 4 KSC pipes_Major Leak
PVC 6 KSC Pipes_Minor Leak
50mm OD PVC 6 KSC pipes_Minor Leak
63mm OD PVC 6 KSC pipes_Minor Leak
75mm OD PVC 6 KSC pipes_Minor Leak
90mm OD PVC 6 KSC pipes_Minor Leak
110mm OD PVC 6 KSC pipes_Minor Leak
140mm OD PVC 6 KSC pipes_Minor Leak
200mm OD PVC 6 KSC pipes_Minor Leak
250mm OD PVC 6 KSC pipes_Major Leak
PVC 6 KSC Pipes_Major Leak
50mm OD PVC 6 KSC pipes_Major Leak
63mm OD PVC 6 KSC pipes_Major Leak
75mm OD PVC 6 KSC pipes_Major Leak
90mm OD PVC 6 KSC pipes_Major Leak
110mm OD PVC 6 KSC pipes_Major Leak
140mm OD PVC 6 KSC pipes_Major Leak
200mm OD PVC 6 KSC pipes_Major Leak
250mm OD PVC 6 KSC pipes_Major Leak
Attending Leaks/Bursts in the HDPE pipelines of this CWSS for the following items, as per the standard procedure including earthwork excavation, dewatering, removing, relaying, jointing by Electro fusion/butt Joint, civil works, cost of materials and all other incidental charges, etc complete within the stipulated time limit as directed by the TWAD Board officers.
HDPE PN 6 Pipes_Minor Leaks
63mm HDPE PN 6 pipes_Minor Leak
75mm HDPE PN 6 pipes_Minor Leak
90mm HDPE PN 6 pipes_Minor Leak
110mm HDPE PN 6 pipes_Minor Leak
140mm HDPE PN 6 pipes_Minor Leak
160mm HDPE PN 6 pipes_Minor Leak
200mm HDPE PN 6 pipes_Minor Leak
HDPE PN 6 Pipes_Major Leaks
63mm HDPE PN 6 pipes_Major Leak
75mm HDPE PN 6 pipes_Major Leak
90mm HDPE PN 6 pipes_Major Leak
110mm HDPE PN 6 pipes_Major Leak
140mm HDPE PN 6 pipes_Major Leak
160mm HDPE PN 6 pipes_Major Leak
200mm HDPE PN 6 pipes_Major Leak
Attending leaks and bursts in GI pipes of various sizes including Supply and delivery of following G I PIPES (MEDIUM) AS PER IS 1239/PART I/2004 and Lowering GI pipes and specials in the trenches and laying to proper grade and alignment, jointing with GI Specials and as directed by the TWAD Officers
50mm GI Pipe leak above GL
65mm GI Pipe leak above GL
80mm GI Pipe leak above GL
100mm GI Pipe leak above GL
125mm GI Pipe leak above GL
150mm GI Pipe leak above GL
Attending joint (Collar) Leaks in the AC pipelines of this CWSS for the following items, as per the standard procedure including earthwork excavation, dewatering, removing, relaying, jointing, civil works, cost of materials and all incidental charges, etc complete within the stipulated time limit as specified in Clause 2.6.4 of General conditions of Contract
AC Pipe_Collar Leak
200mm AC_Collar Leak
250mm AC_Collar Leak
AC Pipe_Minor Leak centre crack
200mm AC Pipe_MS Cut Barrel
250mm AC Pipe_MS Cut Barrel
Attending Leaks/Bursts in the O-PVC pipelines of this CWSS for the following items, as per the standard procedure including earthwork excavation, dewatering, removing, relaying, jointing, civil works, cost of materials and all incidental charges, etc complete within the stipulated time limit as specified in Clause 2.6.4 of General conditions of Contract
250mm O-PVC Pipe Leak
Attending Leaks/Bursts in the DI pipelines of this CWSS for the following items, as per the standard procedure including earthwork excavation, dewatering, removing, relaying, jointing, civil works, cost of materials and all incidental charges, etc complete within the stipulated time limit as specified in Clause 2.6.4 of General conditions of Contract
DI Pipes_Minor Leak
200mm DI pipes - Minor leak
250mm DI pipes - Minor leak
DI Pipes_Major Leak
200mm DI pipes - Major leak
250mm DI pipes - Major leak
Labour for cutting open B.T. Roads (or) Maccadam road for laying water mains - 15 cm thick (SOR VOL II P.195)
For all size Pumping mains
Road Restoration with PCC 1:2:4 using 20 mm HBGS for the Concrete Road cut Portion after the pipes are laid, joined and tested complete and as directed by TWAD Board Officers - 15 cm thick
For all size Pumping mains
Supply and delivery of following sizes of UN PLASTICIZED O-PVC PIPES FOR POTABLE WATER SUPPLY AS PER IS 16647 / 2017 inclusive of transportation charges to stockyard excluding unloading anywhere in Tamilnadu etc, complete and as directed by the TWAD Board officers. (SOR VOL II P.11)
250mm O-PVC PIPE PN 12.5 Class 500
Supply and conveying of DI DUCTILE IRON SOCKET/SPIGOT PIPES FOR CLASS K7 AS PER IS 8329/2000 for standard length including cost of pipe,testing charges at factory ,labour charges for loading,unloading and stacking at site etc.(SOR VOL II P.35)
250mm DI S/S K7 pipe
200mm DI S/S K7 pipe
Supply and delivery of following sizes of HDPE PIPES - PE 100 AS PER IS 4984/2016 (Pre-Compounded Resin) inclusive of transportation charges to stockyard excluding unloading anywhere in Tamilnadu etc, complete and as directed by the TWAD Board officers. (SOR VOL II P.14)
225mm HDPE PN 6
200mm HDPE PN 6
160mm HDPE PN 6
140mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
75mm HDPE PN 6
63mm HDPE PN 6
Earth work excavation and depositing on bank with initial lead of 10 m and initial lift of 2m in narrow trenches for laying of pipes for water supply in the following types of soil
Hard stiff clay, stiff black cotton, hard red earth, shales, murrum gravel, stoney earth and earth mixed with small size boulders and hard gravelly soil. (SOR VOL II P.192)
250mm O PVC / DI S/S Pipe
225mm HDPE PN 6
200mm HDPE PN 6 / DI S/S Pipe
160mm HDPE PN 6
140mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
75mm HDPE PN 6
63mm HDPE PN 6
Lowering of OPVC Pipes and specials in the trenches and laying to proper grade and alignment and as directed by the TWAD Officers. (SOR VOL II P.161)
250mm O PVC
Lowering of D.I Pipes and specials in the trenches and laying to proper grade and alignment and as directed by the TWAD Officers.
250mm DI S/S K7 pipe
200mm DI S/S K7 pipe
Lowering HDPE pipes and specials to trench and laying to proper grade and alignment and as directed by the TWAD Officers. (SOR VOL II P.171)
225mm HDPE PN 6
200mm HDPE PN 6
160mm HDPE PN 6
140mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
75mm HDPE PN 6
63mm HDPE PN 6
Jointing OPVC-S/S pipes and specials with rubber gaskets (tyton joint) including cost of lubricants. (including cost of jointing materials) (SOR VOL II P.164)
250mm O PVC - 6m Length
Jointing C.I/ D.I-S/S pipes and specials with rubber gaskets (tyton joint) including cost of lubricants. (including cost of jointing materials)(SOR VOL II P.164)
250mm DI S/S K7 pipe
200mm DI S/S K7 pipe
Jointing HDPE Pipes and Specials by butt fusion welding / electro fusion welding joints using fusion equipment as per ISO 21307-2011 and as per IS 7634 (part-2) : 2012 including cost of hire charges for butt fusion equipment power supply arrangements etc., complete as per directed by TWAD Board Officers. (SOR VOL II P.184)
225mm HDPE PN 6
200mm HDPE PN 6
160mm HDPE PN 6
140mm HDPE PN 6
110mm HDPE PN 6
Refiling with excavated sand or other loose soil complying with standerd specification in layers of 15 cm thick well rammed and consolidated after pipes and specials are laid and tested. (SOR VOL II P.192)
250mm O PVC / DI S/S Pipe
225mm HDPE PN 6
200mm HDPE PN 6 / DI S/S Pipe
160mm HDPE PN 6
140mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
75mm HDPE PN 6
63mm HDPE PN 6
Pumpsets
Carrying out the following repair works occuring during the maintenance period in the Electrical, Mechanical and Elctro-mechanical items to bring back the scheme / components into normal running conditition as per standard specification including all labour charges, cost of materials and all incidental charges within the stipulated time limit etc., complete as specified in Clause 2.8 of General conditions of Contract Part II etc as directed by TWAD Board officers
Attending the Rewinding, Repair and Renewal works in various capacity Open Well Submersible Pumpsets
Removing the Submersible pumpset by using tripod set after disconnecting the power supply cable and delivery pipe line fittings
1HP -OWS
2HP -OWS
3HP -OWS
5HP -OWS
7.5HP -OWS
10HP -OWS
12.50HP -OWS
20HP -OWS
40HP -OWS
50HP -OWS
Transporting the pumpset from Pump House to work shop.
1HP -OWS
2HP -OWS
3HP -OWS
5HP -OWS
7.5HP -OWS
10HP -OWS
12.50HP -OWS
20HP -OWS
40HP -OWS
50HP -OWS
Rewinding the submersible motor using best quality winding wire including cost of wire, Sleeve, other insulating and fibre class materials after deducting the cost of old materials.
1HP -OWS
2HP -OWS
3HP -OWS
5HP -OWS
7.5HP -OWS
10HP -OWS
12.50HP -OWS
20HP -OWS
40HP -OWS
50HP -OWS
Reconditioning the worn-out shaft and fittings, impeller and Gun Metal/ SS Bushes including cost of lath work & labour charges etc.,
1HP -OWS
2HP -OWS
3HP -OWS
5HP -OWS
7.5HP -OWS
10HP -OWS
12.50HP -OWS
20HP -OWS
40HP -OWS
50HP -OWS
Replacement of carbon type thrust bearing and pumpside Gun Metal Bush including cost of labour charges after deducting the cost of old material
1HP -OWS
2HP -OWS
3HP -OWS
5HP -OWS
7.5HP -OWS
10HP -OWS
12.50HP -OWS
20HP -OWS
40HP -OWS
50HP -OWS
Transporting charges for Submersible pumpset from work shop to Pump House after attending repair works.
1HP -OWS
2HP -OWS
3HP -OWS
5HP -OWS
7.5HP -OWS
10HP -OWS
12.50HP -OWS
20HP -OWS
40HP -OWS
50HP -OWS
Re-erection of pumpset in the Sump / Well by using tripod set and required Rubber washer and Bolt & Nuts and connecting the power supply cable and delivery pipeline arrangements testing to trial pumping.
1HP -OWS
2HP -OWS
3HP -OWS
5HP -OWS
7.5HP -OWS
10HP -OWS
12.50HP -OWS
20HP -OWS
40HP -OWS
50HP -OWS
SUPPLY AND DELIVERY OF SERVICE CONNECTION ACCESSORIES L.T. 1100V PVC ALUMINIUM ARMOURED UNDER GROUND CABLE WITH ISI MARK
25 Sq.mm 3.5 Core
35 Sq.mm 3.5 Core
50 Sq.mm 3.5 Core
70 Sq.mm 3.5 Core
95 Sq.mm 3.5 Core
SUPPLY AND DELIVERY OF L.T. CABLES following size sq mm 3 CORE 1.1 KV GRADE ARMOURED ALUMINIUM CONDUCTOR CROSS LINKED POLY ETHYLENE INSULATED PVC SHEATHED CABLES CONFORMING TO IS 7098 (PART I)/1988 WITH ISI MARKING
25 Sq.mm 3 Core
35 Sq.mm 3 Core
50 Sq.mm 3 Core
70 Sq.mm 3Core
95 Sq.mm 3 Core
SUPPLY AND DELIVERY OF PVC INSULATED AND SHEATHED following sq mm 3 CORE FLAT TYPE COPPER CABLE CONFORMING TO IS 694/1989
SUPPLY AND DELIVERY OF 150mm dia Pressure Gauge and Vaccum guage including all accessories as per specification (For Suction and Delivery to be mounted on wall on Teak Wood Board)
Supply, delivey and fixing of MOULDED CASE CIRCUIT BREAKER (MCCB) WITH THERMO MAGNETIC RELEASE - 4 Pole
Range - 63/100A
Range - 125A
Range - 160A
Range - 250A
Supply, delivey and fixing of RATE FOR MIXED DI-ELECTRIC CAPACITOR WITH TNEB TEST CERTIFICATE WITH ACCESSORIES INCLUDING BANKING CONFORMIING TO IS 2834.
Supply, delivey and fixing of Electro magnetic contactors of suitable capacity in AC Three Phase rating, conforming to IS/IEC 60947-4-1.
Supply, delivey and fixing of Overload Relays: Directly operated Bimetallic Thermal overload relay which operates in case of overload and also in case of under voltage with manual and auto reset mode.
Supply, delivey and fixing of Preventer – Single Phasing - Electric Motor protection device against single phasing. The device should protect the motor against single phasing, reverse phasing and unbalance supply. The device should be suitable for any auxillary device and have provisions for mounting in panel boards. Operate without need of any auxiliary supply.
Electric Motor protection device against dry running. The device should protect the motor against Dry running. The device should be suitable for any auxillary device and have provisions for mounting in panel boards. Operate without need of any auxiliary supply
Supply, delivey and fixing of FUSE UNITS (ANCHOR /EQUIVALENT)
63 Amps Porcelain fuse unit (500 V)
100 Amps Porcelain fuse unit (500 V)
200 Amps Porcelain fuse unit (500 V)
Supply, delivey and fixing of CHANGE OVER SWITCHES
16 Amps three phase 500 V 4 pole Change over switch
32 Amps three phase 500 V 4 pole Change over switch
63 Amps three phase 500 V 4 pole Change over switch
100 Amps three phase 500 V 4 pole Change over switch
125 Amps three phase 500 V 4 pole Change over switch
Supply, delivey and fixing of PVC INSULATED SINGLE CORE MULTI STRAND FIRE RETARDANT FLEXIBLE COPPER CABLE WITH ISI MARK CONFORMING TO IS
Supply, delivey and fixing of HRC - FUSES - HIGHER END
HRC - 16 Amps
HRC - 32 Amps
HRC - 63 Amps
HRC - 125 Amps
HRC - 160 Amps
HRC - 200 Amps
HRC - 250 Amps
Supply and delivery of the following Electrical Works :consumable items at the site of work to carryout the general maintenace works
Voltmeter Digital - Three Phase Class 1-AC
Ammeter Digital - Three Phase Class 1-1A
20W 4 Feet LED Fitting with LED (Higher end)
LED OUTDOOR FITTINGS (LIGHT EMITTING DIODE) LOWER END 25W LED Street Light Fitting with LED
Supply and delivery of the following consumable items for Pump Set repairs at the site of work to carryout the general maintenace works
50mm GM Gate valve
65mm GM Gate valve
80mm GM Gate valve
100mm GM Gate valve
R I Sheet
Bolts and Nuts - All sizes
50mm GI Pipe
65mm GI Pipe
80mm GI Pipe
100mm GI pipe
125mm GI pipe
150mm GI pipe
Supply, delivery and fixing of DI D/F Gate sluice/scour valves (soft seated) resilient seated soft sealing Gate Valves(Sluice Valves) with body Bonnet of Ductile cast iron of Grade GGG 40 or equivalent grade, Wedge fully rubber lined with EPDM replaceable spindle nut without gland packing and with 3 O- Ring protection on the shaft and seals of NBR and the valves should be of Vacuum tight and 100% leak proof with face to face dimensions as per BS 5163- 89/ISI 14846-2000/DIN 3202 F4. All the valves should be with electrostatic powder coating both inside and out side with pocket less straight through body passage. All the valves are to be compatible for buried application with pressure rating PN 10/16 and with 5 years warranty.
100mm DI Gate Valve
150mm DI Gate Valve
Manufacture, Supply and Delivery of Tamper proof DI single chamber double orifice triple function (ventilating, admiting & ventilating during operation) air release valve with pressure rating PN 10/16 with body and cover made of Ductile Iron of Grade GGG 40 or GGG 50, conforming to IS 1865 with Food Grade Epoxy Powder coating (EP-P) inside and for outside of colour blue RAL 5005. All internal parts such as float, shell etc., cover bolts, made of Austenitic alloy steel of SS AISI 304/316. The float shall be made of Polytetrafluroethylene/ Austenitic alloy steel of AISI 304/316. Gaskets and seals of EPDM / Neoprene rubber for TWAD Board works anywhere in Tamil Nadu and with 5 years warranty
50mm DI Air Valve
80mm DI Air Valve
Supply, delivey and fixing of C.I. DOUBLE AIR VALVE AS PER ISI 14845/2000 AND WITH 5 YEARS WARRANTY
40mm CI Air Valve
50mm CI Air Valve
80mm CI Air Valve
SUMP CLEANING
Cleaning of all storage points like sumps, elevated reservoirs of various capacities available in this scheme at a frequency of once in two months including scrapping the inner side of compartment completely, scouring / dewatering / desilting using required machineries, materials, labour and all other incidental charges, application of bleaching powder/ solution etc complete.
For 15001 to 30000 lit cap sump
For 45001 to 60000 lit cap sump
For 100001 to 125000 lit cap sump
For 125001 to 150000 lit cap sump
For 200001 to 300000 lit cap sump
Desilting light or sandysoil or silt from collection well below water level including the charges for special tools & plants and air compressor etc complete
Supply, delivery and application of disinfection dosages as per standard norms / guidelines including cost of all disinfectents (Such as bleaching powder, chlorine cylinder, silver ionization rods, sodium hypochlorite solution, common salt as applicable to this CWSS), labour charges and all incidental charges for disinfection of the water supplied from this CWSS to ensure the portable quality of disinfected water at all delivery points / tail ends, testing of water samples including additional / required / instructed dosage during the period of Flood/ Calamities etc., complete.
Supply delivery of Bleaching Powder as per Relevant IS Specification
CWSS TO CHENGAM TP, PUDUPALAYAM TP AND 40 WAYSIDE HABIYTATIONS IN CHENGAM, PUDUPALAYAM UNIONS IN TIRUVANNAMALAI DISTRICT
Operation and Maintenance of the Electro Mechanical installations, equipments, components, pipelines valves and appurtenances, water retaining structures including protecton of all schemee components from damages/ theft undertaking legal actions for such untoward incidents, preventive maintenance, disinfection and deliverance of water as per quality standards and supply of earmarked quantity of water to the beneficiaries as per Annexure .........., carrying out the O&M as per standard operating procedures, Acts and rules in force and as directed by TWAD Board Oficers and excluding cost towards attending leak, burst repair and replacement works to electro mechanical installations consumables for disinfection of water, cleaning of all water retaining structure, electricity .
Repair & Renewals and Leak & Bursts :
Attending Leaks in the PVC pipelines of this CWSS for the following items, as per the standard procedure including earthwork excavation, dewatering, removing, relaying, jointing, civil works, cost of materials and all other incidental charges, etc complete within the stipulated time limit as directed by the TWAD Board officers.
PVC 4 KSC Pipes_Minor Leak
63mm OD PVC 4 KSC pipes_Minor Leak
75mm OD PVC 4 KSC pipes_Minor Leak
90mm OD PVC 4 KSC pipes_Minor Leak
110mm OD PVC 4 KSC pipes_Minor Leak
140mm OD PVC 4 KSC pipes_Minor Leak
200mm OD PVC 4 KSC pipes_Minor Leak
250mm OD PVC 4 KSC pipes_Major Leak
PVC 4 KSC Pipes_Major Leak
63mm OD PVC 4 KSC pipes_Major Leak
75mm OD PVC 4 KSC pipes_Major Leak
90mm OD PVC 4 KSC pipes_Major Leak
110mm OD PVC 4 KSC pipes_Major Leak
140mm OD PVC 4 KSC pipes_Major Leak
200mm OD PVC 4 KSC pipes_Major Leak
250mm OD PVC 4 KSC pipes_Major Leak
PVC 6 KSC Pipes_Minor Leak
50mm OD PVC 6 KSC pipes_Minor Leak
63mm OD PVC 6 KSC pipes_Minor Leak
75mm OD PVC 6 KSC pipes_Minor Leak
90mm OD PVC 6 KSC pipes_Minor Leak
110mm OD PVC 6 KSC pipes_Minor Leak
140mm OD PVC 6 KSC pipes_Minor Leak
200mm OD PVC 6 KSC pipes_Minor Leak
250mm OD PVC 6 KSC pipes_Major Leak
PVC 6 KSC Pipes_Major Leak
50mm OD PVC 6 KSC pipes_Major Leak
63mm OD PVC 6 KSC pipes_Major Leak
75mm OD PVC 6 KSC pipes_Major Leak
90mm OD PVC 6 KSC pipes_Major Leak
110mm OD PVC 6 KSC pipes_Major Leak
140mm OD PVC 6 KSC pipes_Major Leak
200mm OD PVC 6 KSC pipes_Major Leak
250mm OD PVC 6 KSC pipes_Major Leak
Attending Leaks/Bursts in the HDPE pipelines of this CWSS for the following items, as per the standard procedure including earthwork excavation, dewatering, removing, relaying, jointing by Electro fusion/butt Joint, civil works, cost of materials and all other incidental charges, etc complete within the stipulated time limit as directed by the TWAD Board officers.
HDPE PN 6 Pipes_Minor Leaks
63mm HDPE PN 6 pipes_Minor Leak
75mm HDPE PN 6 pipes_Minor Leak
90mm HDPE PN 6 pipes_Minor Leak
110mm HDPE PN 6 pipes_Minor Leak
HDPE PN 6 Pipes_Major Leaks
63mm HDPE PN 6 pipes_Major Leak
75mm HDPE PN 6 pipes_Major Leak
90mm HDPE PN 6 pipes_Major Leak
110mm HDPE PN 6 pipes_Major Leak
Attending leaks and bursts in GI pipes of various sizes including Supply and delivery of following G I PIPES (MEDIUM) AS PER IS 1239/PART I/2004 and Lowering GI pipes and specials in the trenches and laying to proper grade and alignment, jointing with GI Specials and as directed by the TWAD Officers
50mm GI Pipe leak above GL
65mm GI Pipe leak above GL
80mm GI Pipe leak above GL
100mm GI Pipe leak above GL
125mm GI Pipe leak above GL
150mm GI Pipe leak above GL
Attending joint (Collar) Leaks in the AC pipelines of this CWSS for the following items, as per the standard procedure including earthwork excavation, dewatering, removing, relaying, jointing, civil works, cost of materials and all incidental charges, etc complete within the stipulated time limit as specified in Clause 2.6.4 of General conditions of Contract
AC Pipe_Collar Leak
300mm AC_Collar Leak
AC Pipe_Minor Leak centre crack
300mm AC Pipe_MS Cut Barrel
Attending Leaks/Bursts in the DI pipelines of this CWSS for the following items, as per the standard procedure including earthwork excavation, dewatering, removing, relaying, jointing, civil works, cost of materials and all incidental charges, etc complete within the stipulated time limit as specified in Clause 2.6.4 of General conditions of Contract
DI Pipes_Minor Leak
200mm DI pipes - Minor leak
DI Pipes_Major Leak
200mm DI pipes - Major leak
Labour for cutting open B.T. Roads (or) Maccadam road for laying water mains - 15 cm thick (SOR VOL II P.195)
For all size Pumping mains
Road Restoration with PCC 1:2:4 using 20 mm HBGS for the Concrete Road cut Portion after the pipes are laid, joined and tested complete and as directed by TWAD Board Officers - 15 cm thick
For all size Pumping mains
Supply and delivery of following sizes of UN PLASTICIZED O-PVC PIPES FOR POTABLE WATER SUPPLY AS PER IS 16647 / 2017 inclusive of transportation charges to stockyard excluding unloading anywhere in Tamilnadu etc, complete and as directed by the TWAD Board officers. (SOR VOL II P.11)
250mm O-PVC PIPE PN 12.5 Class 500
315mm O-PVC PIPE PN 12.5 Class 500
Supply and delivery of following sizes of HDPE PIPES - PE 100 AS PER IS 4984/2016 (Pre-Compounded Resin) inclusive of transportation charges to stockyard excluding unloading anywhere in Tamilnadu etc, complete and as directed by the TWAD Board officers. (SOR VOL II P.14)
200mm HDPE PN 6
140mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
75mm HDPE PN 6
63mm HDPE PN 6
Earth work excavation and depositing on bank with initial lead of 10 m and initial lift of 2m in narrow trenches for laying of pipes for water supply in the following types of soil
Hard stiff clay, stiff black cotton, hard red earth, shales, murrum gravel, stoney earth and earth mixed with small size boulders and hard gravelly soil. (SOR VOL II P.192)
250mm O PVC
315mm O PVC
200mm HDPE PN 6
140mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
75mm HDPE PN 6
63mm HDPE PN 6
Lowering of OPVC Pipes and specials in the trenches and laying to proper grade and alignment and as directed by the TWAD Officers. (SOR VOL II P.161)
250mm O PVC
315mm O PVC
Lowering HDPE pipes and specials to trench and laying to proper grade and alignment and as directed by the TWAD Officers. (SOR VOL II P.171)
200mm HDPE PN 6
140mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
75mm HDPE PN 6
63mm HDPE PN 6
Jointing OPVC-S/S pipes and specials with rubber gaskets (tyton joint) including cost of lubricants. (including cost of jointing materials) (SOR VOL II P.164)
250mm O PVC - 6m Length
315mm O PVC - 6m Length
Jointing HDPE Pipes and Specials by butt fusion welding / electro fusion welding joints using fusion equipment as per ISO 21307-2011 and as per IS 7634 (part-2) : 2012 including cost of hire charges for butt fusion equipment power supply arrangements etc., complete as per directed by TWAD Board Officers. (SOR VOL II P.184)
200mm HDPE PN 6
140mm HDPE PN 6
110mm HDPE PN 6
Refiling with excavated sand or other loose soil complying with standerd specification in layers of 15 cm thick well rammed and consolidated after pipes and specials are laid and tested. (SOR VOL II P.192)
250mm O PVC
315mm O PVC
200mm HDPE PN 6
140mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
75mm HDPE PN 6
63mm HDPE PN 6
Pumpsets
Carrying out the following repair works occuring during the maintenance period in the Electrical, Mechanical and Elctro-mechanical items to bring back the scheme / components into normal running conditition as per standard specification including all labour charges, cost of materials and all incidental charges within the stipulated time limit etc., complete as specified in Clause 2.8 of General conditions of Contract Part II etc as directed by TWAD Board officers
Attending the Rewinding, Repair and Renewal works in various capacity Open Well Submersible Pumpsets
Removing the Submersible pumpset by using tripod set after disconnecting the power supply cable and delivery pipe line fittings
1HP -OWS
2HP -OWS
3HP -OWS
5HP -OWS
12.50HP -OWS
Transporting the pumpset from Pump House to work shop.
1HP -OWS
2HP -OWS
3HP -OWS
5HP -OWS
12.50HP -OWS
Rewinding the submersible motor using best quality winding wire including cost of wire, Sleeve, other insulating and fibre class materials after deducting the cost of old materials.
1HP -OWS
2HP -OWS
3HP -OWS
5HP -OWS
12.50HP -OWS
Reconditioning the worn-out shaft and fittings, impeller and Gun Metal/ SS Bushes including cost of lath work & labour charges etc.,
1HP -OWS
2HP -OWS
3HP -OWS
5HP -OWS
12.50HP -OWS
Replacement of carbon type thrust bearing and pumpside Gun Metal Bush including cost of labour charges after deducting the cost of old material
1HP -OWS
2HP -OWS
3HP -OWS
5HP -OWS
12.50HP -OWS
Replacement of carbon type thrust bearing and pumpside Gun Metal Bush including cost of labour charges after deducting the cost of old material
1HP -OWS
2HP -OWS
3HP -OWS
5HP -OWS
12.50HP -OWS
Re-erection of pumpset in the Sump / Well by using tripod set and required Rubber washer and Bolt & Nuts and connecting the power supply cable and delivery pipeline arrangements testing to trial pumping.
1HP -OWS
2HP -OWS
3HP -OWS
5HP -OWS
12.50HP -OWS
Attending the Rewinding, Repair and Renewal works in Monoblock Pumpset
3HP_Monoblock
Removing the Monblock Centrifugal Pumpset from the Bed assembly by using contractors tools and materials after disconnecting the power supply cable and delivery pipe line fittings with required dummy plate arrangements.
Transporting the pumpset from the Pumping Station to work shop.
Removing the Burnt winding materials from the stator slots and cleaning the stator and rotor assembly by using contractor tools and materials
Reconditioning the worn-out shaft and fittings, impeller and Rope gland bush including cost of lath work & labour charges etc.,
Rewinding the Monblock Centrifugal Motor using best quality winding wire including cost of wire, Sleeve, other insulating and fibre class materials after deducting the cost of old materials.
Replacement of driven end (No: XXXX) and Non driven end (No:XXXX) Bearings suitable for Monblock Centrifugal Motor including the cost of Bearing and labour charges after deducting the cost of old materials.
Replacement of cooling fan at motor end and Terminal Board for suitable for Monblock Centrifugal Pumpset and labour charges after deducting the cost of old materials.
Transporting charges for Monblock Centrifugal Pumpset from work shop to Pump House after attending repair works.
Re-erection of pumpset in the Sump / Well by using required Rubber washer and Bolt & Nuts and connecting the power supply cable and delivery pipe line arrangements, testing and trial pumping.
Attending the Rewinding and replacement of bearings of Induction Motor for Horizontal Split Casing Pumpsets
15HP -HSC_Motor
Charges for removing the motor from bed after disconnection of power supply cable, Earthing line and Coupling arrangements by using contractor tools and materials.
Transportation charges for conveying the motor from the Booster Station to Our work shop including loading and unloading charges.
Labour Charges for removing the two end side cover with fan arrangements and the damaged driven end and non driven end bearings.
Charges for removing the burnt wires from the rotor assembly and cleaning and checking the slots of rotor and labour charges for rewinding of Centrifugal Squirrel Cage Induction Motor after deducting the cost of old materials and including suppy and delivery of Class ‘F’ Insulation Super enameled Copper wire, required for rewinding and Fiber Glass wire, Fiber Glass Sleeves, Class ‘F’ insulation paper, Copper Socket and FG thread required for rewinding of Squirrel Cage Induction Motor
Labour Charges for reconditioning the worn out shaft for driven end and non driven end bearing seating, knurling, bend checking, and etc.,
Supply and delivery of Driven End and Non Driven End bearings suitable for the required Induction Motor
Labour Charges fixing the DE and NDE bearings correctly and neatly with required lubrications by contractors tools & Materials
Transportation charges for conveying the motor from work shop to Pumping Station
Charges for reassembling the motor with bed and pump coupling, alignment checking connecting power supply cable, including required bolt and Nuts and testing trial running etc.,
Attending the Repair and Reconditioning works of various capacities of Horizontal Split Casing Pumpsets
15HP -HSC_Pump
Charges for removing the motor from bed assembly after dismantling of Coupling arrangements and removing the pump assembly and including the provision of dummy flange arrangements by using contractor tools and materials.
Transportation charges for conveying the Pump assembly from the Pumping Station to work shop including loading and unloading charges.
Labour Charges for removing the impeller by using hydralic system, DE and NDE Bearings
Labour Charges for reconditioning the worn out shaft including welding the shaft to suit the impeller and suit the driven end and non driven end bearing seating, knurling, bend checking and etc.,
Supply, delivery and fixing of Shaft sleeves in Gun metal including machining charges and making key ways after deducting the scrap materials
Balancing of Rotor with impeller both dyanamically and Hydralically by using required dyanamic balancing machine
Supply, delivery and fixing of Gunmetal seal rings for impeller neck including machining charges after deducting the scrap materials
Supply and delivery of Driven End and Non Driven End bearings
Labour Charges fixing the DE and NDE bearings correctly and neatly with required lubrications by contractors tools & Materials
Transportation charges for conveying the Pump assembly from work shop to Pumping Station.
Charges for reassembling the Pump with Motor by using pulley and alignment checking, including required bolt and Nuts and testing trial running etc.,
Attending the Rewinding and replacement of bearings of Induction Motor for Vertical Turbine Pumpset
50HP -VT_Motor
Charges for removing the motor from bed after disconnection of power supply cable, Earthing line and Coupling arrangements by using contractor tools and materials.
Transportation charges for conveying the motor from the Station to Our work shop including loading and unloading charges.
Labour Charges for removing the two end side cover with fan arrangements and Dismantling the damaged NDE Side ball Bearing from the motor after removing the Rachet assembly load bearing safely and Fixing the New ball Bearing in the appropriate place with required lubricants without any damage to the motor shaft and winding after deducting the old damaged materials.
Charges for removing the burnt wires from the rotor assembly and cleaning and checking the slots of rotor and labour charges for rewinding of Centrifugal Squirrel Cage Induction Motor after deducting the cost of old materials and including suppy and delivery of Class ‘F’ Insulation Super enameled Copper wire, required for rewinding and Fiber Glass wire, Fiber Glass Sleeves, Class ‘F’ insulation paper, Copper Socket and FG thread required for rewinding of Squirrel Cage Induction Motor
Labour Charges for reconditioning the worn out shaft for driven end and non driven end bearing seating, knurling, bend checking, and etc.,
Supply and delivery of Non Driven End Deep Grove ball Bearing SKF Make suitable for the Squirrel Gage Induction Motor.
Labour Charges fixing the NDE bearings correctly and neatly with required lubrications by contractors tools & Materials
Transportation charges for conveying the motor from work shop to pumping Station
Charges for reassembling the motor with bed and pump coupling, alignment checking connecting power supply cable, including required bolt and Nuts and testing trial running etc.,
Attending the Repair and Reconditioning works of various capacities of Vertical Turbine Pumps
50HP -VT_Pump
Charges for Removing the Hollow shaft Squirrel cage Induction Motor after disconnecting the Power supply Cable, Discharge Head, Head Shaft and Stuffing Box by using contractor tools at Collector Well / Collection Sump
Charges for removing the all Column pipes of VT Pumpset each 1.5 m / 2.00 m to length and bowl assemblly for attending Pump repair works
Transportation charges for conveying the VT Pump bowl assembly from Collector Well Pump room to Work Shop including usage of trolley along the Foot bridge and Van
Reconditioning of Stuffing Box for providing bronze bush suitable for fixing thr Rope Gland and Head Shaft to avoid frequent damaging of rope and to avoid spreading of more leakage water from the Rope Gland including lath works etc., complete.
Charges for Lathe work of reconditioning of Pump SS Shaft with balancing, SS Bushes and sleeves, charges for Spider bore nd outer dimension phase out lath works, reconditioning of impeller and impeller ring & charges fixing the bearing and bronze bushes in the bowl assembly including correct setting of impeller allignment etc complete
Transportation charges for conveying the VT Pump bowl assembly from our work shop to Collector Well Pump room including usage of trolley along the Foot bridge and Van
Charges for reassembling the all Column pipes of Turbine Pump set and bowl assemblly after attending Pump repair works in the proper allignment after attending the cleaning and painting work in the coloumn pipe and body of the bowl assembly
Re errection of reconditioned stuffing box, new Head shaft, Discharge head and Motor, fixing the Rachet load bearing assembly including filling of required 90 grade oil and Connecting the 440V AC incoming Cable to the Motor Terminal and fixing new rope in the rope gland and Checking Motor Pumpset Alignment and Rotation and testing with load etc.,Complete
SUPPLY AND DELIVERY OF SERVICE CONNECTION ACCESSORIES L.T. 1100V PVC ALUMINIUM ARMOURED UNDER GROUND CABLE WITH ISI MARK
25 Sq.mm 3.5 Core
35 Sq.mm 3.5 Core
50 Sq.mm 3.5 Core
120 Sq.mm 3.5 Core
SUPPLY AND DELIVERY OF L.T. CABLES following size sq mm 3 CORE 1.1 KV GRADE ARMOURED ALUMINIUM CONDUCTOR CROSS LINKED POLY ETHYLENE INSULATED PVC SHEATHED CABLES CONFORMING TO IS 7098 (PART I)/1988 WITH ISI MARKING
25 Sq.mm 3 Core
35 Sq.mm 3 Core
50 Sq.mm 3 Core
SUPPLY AND DELIVERY OF PVC INSULATED AND SHEATHED following sq mm 3 CORE FLAT TYPE COPPER CABLE CONFORMING TO IS 694/1989
SUPPLY AND DELIVERY OF 150mm dia Pressure Gauge and Vaccum guage including all accessories as per specification (For Suction and Delivery to be mounted on wall on Teak Wood Board)
Supply, delivey and fixing of MOULDED CASE CIRCUIT BREAKER (MCCB) WITH THERMO MAGNETIC RELEASE - 4 Pole
Range - 63/100A
Range - 125A
Range - 160A
Range - 250A
Supply, delivey and fixing of RATE FOR MIXED DI-ELECTRIC CAPACITOR WITH TNEB TEST CERTIFICATE WITH ACCESSORIES INCLUDING BANKING CONFORMIING TO IS 2834.
Supply, delivey and fixing of Electro magnetic contactors of suitable capacity in AC Three Phase rating, conforming to IS/IEC 60947-4-1.
Supply, delivey and fixing of Overload Relays: Directly operated Bimetallic Thermal overload relay which operates in case of overload and also in case of under voltage with manual and auto reset mode.
Supply, delivey and fixing of Preventer – Single Phasing - Electric Motor protection device against single phasing. The device should protect the motor against single phasing, reverse phasing and unbalance supply. The device should be suitable for any auxillary device and have provisions for mounting in panel boards. Operate without need of any auxiliary supply.
Electric Motor protection device against dry running. The device should protect the motor against Dry running. The device should be suitable for any auxillary device and have provisions for mounting in panel boards. Operate without need of any auxiliary supply
Supply, delivey and fixing of FUSE UNITS (ANCHOR /EQUIVALENT)
63 Amps Porcelain fuse unit (500 V)
100 Amps Porcelain fuse unit (500 V)
200 Amps Porcelain fuse unit (500 V)
Supply, delivey and fixing of CHANGE OVER SWITCHES
16 Amps three phase 500 V 4 pole Change over switch
32 Amps three phase 500 V 4 pole Change over switch
63 Amps three phase 500 V 4 pole Change over switch
100 Amps three phase 500 V 4 pole Change over switch
125 Amps three phase 500 V 4 pole Change over switch
Supply, delivey and fixing of PVC INSULATED SINGLE CORE MULTI STRAND FIRE RETARDANT FLEXIBLE COPPER CABLE WITH ISI MARK CONFORMING TO IS
Supply, delivey and fixing of HRC - FUSES - HIGHER END
HRC - 16 Amps
HRC - 32 Amps
HRC - 63 Amps
HRC - 125 Amps
HRC - 160 Amps
HRC - 200 Amps
Supply and delivery of the following Electrical Works :consumable items at the site of work to carryout the general maintenace works
Voltmeter Digital - Three Phase Class 1-AC
Ammeter Digital - Three Phase Class 1-1A
20W 4 Feet LED Fitting with LED (Higher end)
LED OUTDOOR FITTINGS (LIGHT EMITTING DIODE) LOWER END 25W LED Street Light Fitting with LED
Supply and delivery of the following consumable items for Pump Set repairs at the site of work to carryout the general maintenace works
50mm GM Gate valve
65mm GM Gate valve
80mm GM Gate valve
100mm GM Gate valve
R I Sheet
Bolts and Nuts - All sizes
50mm GI Pipe
65mm GI Pipe
80mm GI Pipe
100mm GI pipe
125mm GI pipe
150mm GI pipe
Supply, delivery and fixing of DI D/F Gate sluice/scour valves (soft seated) resilient seated soft sealing Gate Valves(Sluice Valves) with body Bonnet of Ductile cast iron of Grade GGG 40 or equivalent grade, Wedge fully rubber lined with EPDM replaceable spindle nut without gland packing and with 3 O- Ring protection on the shaft and seals of NBR and the valves should be of Vacuum tight and 100% leak proof with face to face dimensions as per BS 5163- 89/ISI 14846-2000/DIN 3202 F4. All the valves should be with electrostatic powder coating both inside and out side with pocket less straight through body passage. All the valves are to be compatible for buried application with pressure rating PN 10/16 and with 5 years warranty.
100mm DI Gate Valve
150mm DI Gate Valve
200mm DI Gate Valve
250mm DI Gate Valve
Manufacture, Supply and Delivery of Tamper proof DI single chamber double orifice triple function (ventilating, admiting & ventilating during operation) air release valve with pressure rating PN 10/16 with body and cover made of Ductile Iron of Grade GGG 40 or GGG 50, conforming to IS 1865 with Food Grade Epoxy Powder coating (EP-P) inside and for outside of colour blue RAL 5005. All internal parts such as float, shell etc., cover bolts, made of Austenitic alloy steel of SS AISI 304/316. The float shall be made of Polytetrafluroethylene/ Austenitic alloy steel of AISI 304/316. Gaskets and seals of EPDM / Neoprene rubber for TWAD Board works anywhere in Tamil Nadu and with 5 years warranty
50mm DI Air Valve
80mm DI Air Valve
Supply, delivey and fixing of C.I. DOUBLE AIR VALVE AS PER ISI 14845/2000 AND WITH 5 YEARS WARRANTY
40mm CI Air Valve
50mm CI Air Valve
80mm CI Air Valve
SUMP CLEANING
Cleaning of all storage points like sumps, elevated reservoirs of various capacities available in this scheme at a frequency of once in two months including scrapping the inner side of compartment completely, scouring / dewatering / desilting using required machineries, materials, labour and all other incidental charges, application of bleaching powder/ solution etc complete.
For 30001 to 45000 lit cap sump
For 45001 to 60000 lit cap sump
For 75001 to 100000 lit cap sump
For 175001 to 200000 lit cap sump
Desilting light or sandysoil or silt from collection well below water level including the charges for special tools & plants and air compressor etc complete
Supply, delivery and application of disinfection dosages as per standard norms / guidelines including cost of all disinfectents (Such as bleaching powder, chlorine cylinder, silver ionization rods, sodium hypochlorite solution, common salt as applicable to this CWSS), labour charges and all incidental charges for disinfection of the water supplied from this CWSS to ensure the portable quality of disinfected water at all delivery points / tail ends, testing of water samples including additional / required / instructed dosage during the period of Flood/ Calamities etc., complete.
Supply delivery of Bleaching Powder as per Relevant IS Specification
Supply delivery of Liquid Chlorine as per Relevant IS Specification
Supply delivery of Alum as per Relevant IS Specification
CWSS TO THANIPADI,THANDRAMPATTU AND 35 OTHER HABITATIONS IN TIRUVANNAMALAI DISTRICT
Operation and Maintenance of the Electro Mechanical installations, equipments, components, pipelines valves and appurtenances, water retaining structures including protecton of all schemee components from damages/ theft undertaking legal actions for such untoward incidents, preventive maintenance, disinfection and deliverance of water as per quality standards and supply of earmarked quantity of water to the beneficiaries as per Annexure .........., carrying out the O&M as per standard operating procedures, Acts and rules in force and as directed by TWAD Board Oficers and excluding cost towards attending leak, burst repair and replacement works to electro mechanical installations consumables for disinfection of water, cleaning of all water retaining structure, electricity .
Repair & Renewals and Leak & Bursts :
Attending Leaks in the PVC pipelines of this CWSS for the following items, as per the standard procedure including earthwork excavation, dewatering, removing, relaying, jointing, civil works, cost of materials and all other incidental charges, etc complete within the stipulated time limit as directed by the TWAD Board officers.
PVC 4 KSC Pipes_Minor Leak
63mm OD PVC 4 KSC pipes_Minor Leak
75mm OD PVC 4 KSC pipes_Minor Leak
90mm OD PVC 4 KSC pipes_Minor Leak
110mm OD PVC 4 KSC pipes_Minor Leak
140mm OD PVC 4 KSC pipes_Minor Leak
200mm OD PVC 4 KSC pipes_Minor Leak
PVC 4 KSC Pipes_Major Leak
90mm OD PVC 4 KSC pipes_Major Leak
200mm OD PVC 4 KSC pipes_Major Leak
PVC 6 KSC Pipes_Minor Leak
200mm OD PVC 6 KSC pipes_Minor Leak
PVC 6 KSC Pipes_Major Leak
200mm OD PVC 6 KSC pipes_Major Leak
Attending Leaks/Bursts in the HDPE pipelines of this CWSS for the following items, as per the standard procedure including earthwork excavation, dewatering, removing, relaying, jointing by Electro fusion/butt Joint, civil works, cost of materials and all other incidental charges, etc complete within the stipulated time limit as directed by the TWAD Board officers.
HDPE PN 6 Pipes_Minor Leaks
90mm HDPE PN 6 pipes_Minor Leak
110mm HDPE PN 6 pipes_Minor Leak
140mm HDPE PN 6 pipes_Minor Leak
200mm HDPE PN 6 pipes_Minor Leak
HDPE PN 6 Pipes_Major Leaks
90mm HDPE PN 6 pipes_Major Leak
110mm HDPE PN 6 pipes_Major Leak
140mm HDPE PN 6 pipes_Major Leak
200mm HDPE PN 6 pipes_Major Leak
Attending leaks and bursts in GI pipes of various sizes including Supply and delivery of following G I PIPES (MEDIUM) AS PER IS 1239/PART I/2004 and Lowering GI pipes and specials in the trenches and laying to proper grade and alignment, jointing with GI Specials and as directed by the TWAD Officers
80mm GI Pipe leak above GL
100mm GI Pipe leak above GL
125mm GI Pipe leak above GL
150mm GI Pipe leak above GL
Attending joint (Collar) Leaks in the AC pipelines of this CWSS for the following items, as per the standard procedure including earthwork excavation, dewatering, removing, relaying, jointing, civil works, cost of materials and all incidental charges, etc complete within the stipulated time limit as specified in Clause 2.6.4 of General conditions of Contract
AC Pipe_Collar Leak
150mm AC_Collar Leak
200mm AC_Collar Leak
AC Pipe_Minor Leak centre crack
150mm AC Pipe_MS Cut Barrel
200mm AC Pipe_MS Cut Barrel
Attending Leaks/Bursts in the DI pipelines of this CWSS for the following items, as per the standard procedure including earthwork excavation, dewatering, removing, relaying, jointing, civil works, cost of materials and all incidental charges, etc complete within the stipulated time limit as specified in Clause 2.6.4 of General conditions of Contract
DI Pipes_Minor Leak
150mm DI pipes - Minor leak
DI Pipes_Major Leak
150mm DI pipes - Major leak
Labour for cutting open B.T. Roads (or) Maccadam road for laying water mains - 15 cm thick (SOR VOL II P.195)
For all size Pumping mains
Road Restoration with PCC 1:2:4 using 20 mm HBGS for the Concrete Road cut Portion after the pipes are laid, joined and tested complete and as directed by TWAD Board Officers - 15 cm thick
For all size Pumping mains
Supply and delivery of following sizes of HDPE PIPES - PE 100 AS PER IS 4984/2016 (Pre-Compounded Resin) inclusive of transportation charges to stockyard excluding unloading anywhere in Tamilnadu etc, complete and as directed by the TWAD Board officers. (SOR VOL II P.14)
200mm HDPE PN 6
140mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
Earth work excavation and depositing on bank with initial lead of 10 m and initial lift of 2m in narrow trenches for laying of pipes for water supply in the following types of soil
Hard stiff clay, stiff black cotton, hard red earth, shales, murrum gravel, stoney earth and earth mixed with small size boulders and hard gravelly soil. (SOR VOL II P.192)
200mm HDPE PN 6
140mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
Lowering HDPE pipes and specials to trench and laying to proper grade and alignment and as directed by the TWAD Officers. (SOR VOL II P.171)
200mm HDPE PN 6
140mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
Jointing HDPE Pipes and Specials by butt fusion welding / electro fusion welding joints using fusion equipment as per ISO 21307-2011 and as per IS 7634 (part-2) : 2012 including cost of hire charges for butt fusion equipment power supply arrangements etc., complete as per directed by TWAD Board Officers. (SOR VOL II P.184)
200mm HDPE PN 6
140mm HDPE PN 6
110mm HDPE PN 6
Refiling with excavated sand or other loose soil complying with standerd specification in layers of 15 cm thick well rammed and consolidated after pipes and specials are laid and tested. (SOR VOL II P.192)
200mm HDPE PN 6
140mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
Pumpsets
Carrying out the following repair works occuring during the maintenance period in the Electrical, Mechanical and Elctro-mechanical items to bring back the scheme / components into normal running conditition as per standard specification including all labour charges, cost of materials and all incidental charges within the stipulated time limit etc., complete as specified in Clause 2.8 of General conditions of Contract Part II etc as directed by TWAD Board officers
Attending the Rewinding, Repair and Renewal works in various capacity Open Well Submersible Pumpsets
Removing the Submersible pumpset by using tripod set after disconnecting the power supply cable and delivery pipe line fittings
5HP -OWS
Transporting the pumpset from Pump House to work shop.
5HP -OWS
Rewinding the submersible motor using best quality winding wire including cost of wire, Sleeve, other insulating and fibre class materials after deducting the cost of old materials.
5HP -OWS
Reconditioning the worn-out shaft and fittings, impeller and Gun Metal/ SS Bushes including cost of lath work & labour charges etc.,
5HP -OWS
Replacement of carbon type thrust bearing and pumpside Gun Metal Bush including cost of labour charges after deducting the cost of old material
5HP -OWS
Transporting charges for Submersible pumpset from work shop to Pump House after attending repair works.
5HP -OWS
Re-erection of pumpset in the Sump / Well by using tripod set and required Rubber washer and Bolt & Nuts and connecting the power supply cable and delivery pipeline arrangements testing to trial pumping.
5HP -OWS
Attending the Rewinding, Repair and Renewal works in Monoblock Pumpset
3HP_Monoblock
Removing the Monblock Centrifugal Pumpset from the Bed assembly by using contractors tools and materials after disconnecting the power supply cable and delivery pipe line fittings with required dummy plate arrangements.
Transporting the pumpset from the Pumping Station to work shop.
Removing the Burnt winding materials from the stator slots and cleaning the stator and rotor assembly by using contractor tools and materials
Reconditioning the worn-out shaft and fittings, impeller and Rope gland bush including cost of lath work & labour charges etc.,
Rewinding the Monblock Centrifugal Motor using best quality winding wire including cost of wire, Sleeve, other insulating and fibre class materials after deducting the cost of old materials.
Replacement of driven end (No: XXXX) and Non driven end (No:XXXX) Bearings suitable for Monblock Centrifugal Motor including the cost of Bearing and labour charges after deducting the cost of old materials.
Replacement of cooling fan at motor end and Terminal Board for suitable for Monblock Centrifugal Pumpset and labour charges after deducting the cost of old materials.
Transporting charges for Monblock Centrifugal Pumpset from work shop to Pump House after attending repair works.
Re-erection of pumpset in the Sump / Well by using required Rubber washer and Bolt & Nuts and connecting the power supply cable and delivery pipe line arrangements, testing and trial pumping.
7.5HP_Monoblock
Removing the Monblock Centrifugal Pumpset from the Bed assembly by using contractors tools and materials after disconnecting the power supply cable and delivery pipe line fittings with required dummy plate arrangements.
Transporting the pumpset from the Pumping Station to work shop.
Removing the Burnt winding materials from the stator slots and cleaning the stator and rotor assembly by using contractor tools and materials
Reconditioning the worn-out shaft and fittings, impeller and Rope gland bush including cost of lath work & labour charges etc.,
Rewinding the Monblock Centrifugal Motor using best quality winding wire including cost of wire, Sleeve, other insulating and fibre class materials after deducting the cost of old materials.
Replacement of driven end (No: XXXX) and Non driven end (No:XXXX) Bearings suitable for Monblock Centrifugal Motor including the cost of Bearing and labour charges after deducting the cost of old materials.
Replacement of cooling fan at motor end and Terminal Board for suitable for Monblock Centrifugal Pumpset and labour charges after deducting the cost of old materials.
Transporting charges for Monblock Centrifugal Pumpset from work shop to Pump House after attending repair works.
Re-erection of pumpset in the Sump / Well by using required Rubber washer and Bolt & Nuts and connecting the power supply cable and delivery pipe line arrangements, testing and trial pumping.
Attending the Rewinding and replacement of bearings of Induction Motor for Horizontal Split Casing Pumpsets
50HP -HSC_Motor
Charges for removing the motor from bed after disconnection of power supply cable, Earthing line and Coupling arrangements by using contractor tools and materials.
Transportation charges for conveying the motor from the Booster Station to Our work shop including loading and unloading charges.
Labour Charges for removing the two end side cover with fan arrangements and the damaged driven end and non driven end bearings.
Charges for removing the burnt wires from the rotor assembly and cleaning and checking the slots of rotor and labour charges for rewinding of Centrifugal Squirrel Cage Induction Motor after deducting the cost of old materials and including suppy and delivery of Class ‘F’ Insulation Super enameled Copper wire, required for rewinding and Fiber Glass wire, Fiber Glass Sleeves, Class ‘F’ insulation paper, Copper Socket and FG thread required for rewinding of Squirrel Cage Induction Motor
Labour Charges for reconditioning the worn out shaft for driven end and non driven end bearing seating, knurling, bend checking, and etc.,
Supply and delivery of Driven End and Non Driven End bearings suitable for the required Induction Motor
Labour Charges fixing the DE and NDE bearings correctly and neatly with required lubrications by contractors tools & Materials
Transportation charges for conveying the motor from work shop to Pumping Station
Charges for reassembling the motor with bed and pump coupling, alignment checking connecting power supply cable, including required bolt and Nuts and testing trial running etc.,
Attending the Repair and Reconditioning works of various capacities of Horizontal Split Casing Pumpsets
50HP -HSC_Pump
Charges for removing the motor from bed assembly after dismantling of Coupling arrangements and removing the pump assembly and including the provision of dummy flange arrangements by using contractor tools and materials.
Transportation charges for conveying the Pump assembly from the Pumping Station to work shop including loading and unloading charges.
Labour Charges for removing the impeller by using hydralic system, DE and NDE Bearings
Labour Charges for reconditioning the worn out shaft including welding the shaft to suit the impeller and suit the driven end and non driven end bearing seating, knurling, bend checking and etc.,
Supply, delivery and fixing of Shaft sleeves in Gun metal including machining charges and making key ways after deducting the scrap materials
Balancing of Rotor with impeller both dyanamically and Hydralically by using required dyanamic balancing machine
Supply, delivery and fixing of Gunmetal seal rings for impeller neck including machining charges after deducting the scrap materials
Supply and delivery of Driven End and Non Driven End bearings
Labour Charges fixing the DE and NDE bearings correctly and neatly with required lubrications by contractors tools & Materials
Transportation charges for conveying the Pump assembly from work shop to Pumping Station.
Charges for reassembling the Pump with Motor by using pulley and alignment checking, including required bolt and Nuts and testing trial running etc.,
Attending the Rewinding and replacement of bearings of Induction Motor for Vertical Turbine Pumpset
25HP -VT_Motor
Charges for removing the motor from bed after disconnection of power supply cable, Earthing line and Coupling arrangements by using contractor tools and materials.
Transportation charges for conveying the motor from the Station to Our work shop including loading and unloading charges.
Labour Charges for removing the two end side cover with fan arrangements and Dismantling the damaged NDE Side ball Bearing from the motor after removing the Rachet assembly load bearing safely and Fixing the New ball Bearing in the appropriate place with required lubricants without any damage to the motor shaft and winding after deducting the old damaged materials.
Charges for removing the burnt wires from the rotor assembly and cleaning and checking the slots of rotor and labour charges for rewinding of Centrifugal Squirrel Cage Induction Motor after deducting the cost of old materials and including suppy and delivery of Class ‘F’ Insulation Super enameled Copper wire, required for rewinding and Fiber Glass wire, Fiber Glass Sleeves, Class ‘F’ insulation paper, Copper Socket and FG thread required for rewinding of Squirrel Cage Induction Motor
Labour Charges for reconditioning the worn out shaft for driven end and non driven end bearing seating, knurling, bend checking, and etc.,
Supply and delivery of Non Driven End Deep Grove ball Bearing SKF Make suitable for the Squirrel Gage Induction Motor.
Labour Charges fixing the NDE bearings correctly and neatly with required lubrications by contractors tools & Materials
Transportation charges for conveying the motor from work shop to pumping Station
Charges for reassembling the motor with bed and pump coupling, alignment checking connecting power supply cable, including required bolt and Nuts and testing trial running etc.,
Attending the Repair and Reconditioning works of various capacities of Vertical Turbine Pumps
25HP -VT_Pump
Charges for Removing the Hollow shaft Squirrel cage Induction Motor after disconnecting the Power supply Cable, Discharge Head, Head Shaft and Stuffing Box by using contractor tools at Collector Well / Collection Sump
Charges for removing the all Column pipes of VT Pumpset each 1.5 m / 2.00 m to length and bowl assemblly for attending Pump repair works
Transportation charges for conveying the VT Pump bowl assembly from Collector Well Pump room to Work Shop including usage of trolley along the Foot bridge and Van
Reconditioning of Stuffing Box for providing bronze bush suitable for fixing thr Rope Gland and Head Shaft to avoid frequent damaging of rope and to avoid spreading of more leakage water from the Rope Gland including lath works etc., complete.
Charges for Lathe work of reconditioning of Pump SS Shaft with balancing, SS Bushes and sleeves, charges for Spider bore nd outer dimension phase out lath works, reconditioning of impeller and impeller ring & charges fixing the bearing and bronze bushes in the bowl assembly including correct setting of impeller allignment etc complete
Transportation charges for conveying the VT Pump bowl assembly from our work shop to Collector Well Pump room including usage of trolley along the Foot bridge and Van
Charges for reassembling the all Column pipes of Turbine Pump set and bowl assemblly after attending Pump repair works in the proper allignment after attending the cleaning and painting work in the coloumn pipe and body of the bowl assembly
Re errection of reconditioned stuffing box, new Head shaft, Discharge head and Motor, fixing the Rachet load bearing assembly including filling of required 90 grade oil and Connecting the 440V AC incoming Cable to the Motor Terminal and fixing new rope in the rope gland and Checking Motor Pumpset Alignment and Rotation and testing with load etc.,Complete
SUPPLY AND DELIVERY OF SERVICE CONNECTION ACCESSORIES L.T. 1100V PVC ALUMINIUM ARMOURED UNDER GROUND CABLE WITH ISI MARK
25 Sq.mm 3.5 Core
50 Sq.mm 3.5 Core
95 Sq.mm 3.5 Core
SUPPLY AND DELIVERY OF L.T. CABLES following size sq mm 3 CORE 1.1 KV GRADE ARMOURED ALUMINIUM CONDUCTOR CROSS LINKED POLY ETHYLENE INSULATED PVC SHEATHED CABLES CONFORMING TO IS 7098 (PART I)/1988 WITH ISI MARKING
25 Sq.mm 3 Core
50 Sq.mm 3 Core
95 Sq.mm 3 Core
SUPPLY AND DELIVERY OF PVC INSULATED AND SHEATHED following sq mm 3 CORE FLAT TYPE COPPER CABLE CONFORMING TO IS 694/1989
SUPPLY AND DELIVERY OF 150mm dia Pressure Gauge and Vaccum guage including all accessories as per specification (For Suction and Delivery to be mounted on wall on Teak Wood Board)
Supply, delivey and fixing of MOULDED CASE CIRCUIT BREAKER (MCCB) WITH THERMO MAGNETIC RELEASE - 4 Pole
Range - 63/100A
Range - 125A
Supply, delivey and fixing of RATE FOR MIXED DI-ELECTRIC CAPACITOR WITH TNEB TEST CERTIFICATE WITH ACCESSORIES INCLUDING BANKING CONFORMIING TO IS 2834.
Supply, delivey and fixing of Electro magnetic contactors of suitable capacity in AC Three Phase rating, conforming to IS/IEC 60947-4-1.
Supply, delivey and fixing of Overload Relays: Directly operated Bimetallic Thermal overload relay which operates in case of overload and also in case of under voltage with manual and auto reset mode.
Supply, delivey and fixing of Preventer – Single Phasing - Electric Motor protection device against single phasing. The device should protect the motor against single phasing, reverse phasing and unbalance supply. The device should be suitable for any auxillary device and have provisions for mounting in panel boards. Operate without need of any auxiliary supply.
Electric Motor protection device against dry running. The device should protect the motor against Dry running. The device should be suitable for any auxillary device and have provisions for mounting in panel boards. Operate without need of any auxiliary supply
Supply, delivey and fixing of FUSE UNITS (ANCHOR /EQUIVALENT)
100 Amps Porcelain fuse unit (500 V)
200 Amps Porcelain fuse unit (500 V)
Supply, delivey and fixing of CHANGE OVER SWITCHES
32 Amps three phase 500 V 4 pole Change over switch
63 Amps three phase 500 V 4 pole Change over switch
200 Amps three phase 500 V 4 pole Change over switch
Supply, delivey and fixing of PVC INSULATED SINGLE CORE MULTI STRAND FIRE RETARDANT FLEXIBLE COPPER CABLE WITH ISI MARK CONFORMING TO IS
Supply, delivey and fixing of HRC - FUSES - HIGHER END
HRC - 16 Amps
HRC - 63 Amps
HRC - 200 Amps
Supply and delivery of the following Electrical Works :consumable items at the site of work to carryout the general maintenace works
Voltmeter Digital - Three Phase Class 1-AC
Ammeter Digital - Three Phase Class 1-1A
20W 4 Feet LED Fitting with LED (Higher end)
LED OUTDOOR FITTINGS (LIGHT EMITTING DIODE) LOWER END 25W LED Street Light Fitting with LED
Supply and delivery of the following consumable items for Pump Set repairs at the site of work to carryout the general maintenace works
80mm GM Gate valve
R I Sheet
Bolts and Nuts - All sizes
80mm GI Pipe
100mm GI pipe
125mm GI pipe
150mm GI pipe
Supply, delivery and fixing of DI D/F Gate sluice/scour valves (soft seated) resilient seated soft sealing Gate Valves(Sluice Valves) with body Bonnet of Ductile cast iron of Grade GGG 40 or equivalent grade, Wedge fully rubber lined with EPDM replaceable spindle nut without gland packing and with 3 O- Ring protection on the shaft and seals of NBR and the valves should be of Vacuum tight and 100% leak proof with face to face dimensions as per BS 5163- 89/ISI 14846-2000/DIN 3202 F4. All the valves should be with electrostatic powder coating both inside and out side with pocket less straight through body passage. All the valves are to be compatible for buried application with pressure rating PN 10/16 and with 5 years warranty.
100mm DI Gate Valve
150mm DI Gate Valve
200mm DI Gate Valve
250mm DI Gate Valve
Manufacture, Supply and Delivery of Tamper proof DI single chamber double orifice triple function (ventilating, admiting & ventilating during operation) air release valve with pressure rating PN 10/16 with body and cover made of Ductile Iron of Grade GGG 40 or GGG 50, conforming to IS 1865 with Food Grade Epoxy Powder coating (EP-P) inside and for outside of colour blue RAL 5005. All internal parts such as float, shell etc., cover bolts, made of Austenitic alloy steel of SS AISI 304/316. The float shall be made of Polytetrafluroethylene/ Austenitic alloy steel of AISI 304/316. Gaskets and seals of EPDM / Neoprene rubber for TWAD Board works anywhere in Tamil Nadu and with 5 years warranty
50mm DI Air Valve
80mm DI Air Valve
Supply, delivey and fixing of C.I. DOUBLE AIR VALVE AS PER ISI 14845/2000 AND WITH 5 YEARS WARRANTY
40mm CI Air Valve
50mm CI Air Valve
80mm CI Air Valve
SUMP CLEANING
Cleaning of all storage points like sumps, elevated reservoirs of various capacities available in this scheme at a frequency of once in two months including scrapping the inner side of compartment completely, scouring / dewatering / desilting using required machineries, materials, labour and all other incidental charges, application of bleaching powder/ solution etc complete.
For 75001 to 100000 lit cap sump
Desilting light or sandysoil or silt from collection well below water level including the charges for special tools & plants and air compressor etc complete
Supply, delivery and application of disinfection dosages as per standard norms / guidelines including cost of all disinfectents (Such as bleaching powder, chlorine cylinder, silver ionization rods, sodium hypochlorite solution, common salt as applicable to this CWSS), labour charges and all incidental charges for disinfection of the water supplied from this CWSS to ensure the portable quality of disinfected water at all delivery points / tail ends, testing of water samples including additional / required / instructed dosage during the period of Flood/ Calamities etc., complete.
Supply delivery of Bleaching Powder as per Relevant IS Specification
Supply delivery of Liquid Chlorine as per Relevant IS Specification
Supply delivery of Alum as per Relevant IS Specification
CWSS TO DEVIGAPURAM AND 11 OTHER HABITATIONS IN WEST ARANI AND CHETPET UNION OFTHIRUVANNAMALAI DISTRICT
Repair & Renewals and Leak & Bursts :
Attending Leaks in the PVC pipelines of this CWSS for the following items, as per the standard procedure including earthwork excavation, dewatering, removing, relaying, jointing, civil works, cost of materials and all other incidental charges, etc complete within the stipulated time limit as directed by the TWAD Board officers.
PVC 4 KSC Pipes_Minor Leak
75mm OD PVC 4 KSC pipes_Minor Leak
90mm OD PVC 4 KSC pipes_Minor Leak
140mm OD PVC 4 KSC pipes_Minor Leak
PVC 4 KSC Pipes_Major Leak
75mm OD PVC 4 KSC pipes_Major Leak
90mm OD PVC 4 KSC pipes_Major Leak
140mm OD PVC 4 KSC pipes_Major Leak
PVC 6 KSC Pipes_Minor Leak
140mm OD PVC 6 KSC pipes_Minor Leak
PVC 6 KSC Pipes_Major Leak
140mm OD PVC 6 KSC pipes_Major Leak
Attending Leaks/Bursts in the HDPE pipelines of this CWSS for the following items, as per the standard procedure including earthwork excavation, dewatering, removing, relaying, jointing by Electro fusion/butt Joint, civil works, cost of materials and all other incidental charges, etc complete within the stipulated time limit as directed by the TWAD Board officers.
HDPE PN 6 Pipes_Minor Leaks
75mm HDPE PN 6 pipes_Minor Leak
90mm HDPE PN 6 pipes_Minor Leak
140mm HDPE PN 6 pipes_Minor Leak
HDPE PN 6 Pipes_Major Leaks
75mm HDPE PN 6 pipes_Major Leak
90mm HDPE PN 6 pipes_Major Leak
140mm HDPE PN 6 pipes_Major Leak
Attending leaks and bursts in GI pipes of various sizes including Supply and delivery of following G I PIPES (MEDIUM) AS PER IS 1239/PART I/2004 and Lowering GI pipes and specials in the trenches and laying to proper grade and alignment, jointing with GI Specials and as directed by the TWAD Officers
65mm GI Pipe leak above GL
80mm GI Pipe leak above GL
125mm GI Pipe leak above GL
Attending joint (Collar) Leaks in the AC pipelines of this CWSS for the following items, as per the standard procedure including earthwork excavation, dewatering, removing, relaying, jointing, civil works, cost of materials and all incidental charges, etc complete within the stipulated time limit as specified in Clause 2.6.4 of General conditions of Contract
AC Pipe_Collar Leak
150mm AC_Collar Leak
200mm AC_Collar Leak
AC Pipe_Minor Leak centre crack
150mm AC Pipe_MS Cut Barrel
200mm AC Pipe_MS Cut Barrel
Labour for cutting open B.T. Roads (or) Maccadam road for laying water mains - 15 cm thick (SOR VOL II P.195)
For all size Pumping mains
Road Restoration with PCC 1:2:4 using 20 mm HBGS for the Concrete Road cut Portion after the pipes are laid, joined and tested complete and as directed by TWAD Board Officers - 15 cm thick
For all size Pumping mains
Supply and delivery of following sizes of HDPE PIPES - PE 100 AS PER IS 4984/2016 (Pre-Compounded Resin) inclusive of transportation charges to stockyard excluding unloading anywhere in Tamilnadu etc, complete and as directed by the TWAD Board officers. (SOR VOL II P.14)
160mm HDPE PN 6
140mm HDPE PN 6
90mm HDPE PN 6
75mm HDPE PN 6
Earth work excavation and depositing on bank with initial lead of 10 m and initial lift of 2m in narrow trenches for laying of pipes for water supply in the following types of soil
Hard stiff clay, stiff black cotton, hard red earth, shales, murrum gravel, stoney earth and earth mixed with small size boulders and hard gravelly soil. (SOR VOL II P.192)
160mm HDPE PN 6
140mm HDPE PN 6
90mm HDPE PN 6
75mm HDPE PN 6
Lowering HDPE pipes and specials to trench and laying to proper grade and alignment and as directed by the TWAD Officers. (SOR VOL II P.171)
160mm HDPE PN 6
140mm HDPE PN 6
90mm HDPE PN 6
75mm HDPE PN 6
Jointing HDPE Pipes and Specials by butt fusion welding / electro fusion welding joints using fusion equipment as per ISO 21307-2011 and as per IS 7634 (part-2) : 2012 including cost of hire charges for butt fusion equipment power supply arrangements etc., complete as per directed by TWAD Board Officers. (SOR VOL II P.184)
160mm HDPE PN 6
140mm HDPE PN 6
Refiling with excavated sand or other loose soil complying with standerd specification in layers of 15 cm thick well rammed and consolidated after pipes and specials are laid and tested. (SOR VOL II P.192)
160mm HDPE PN 6
140mm HDPE PN 6
90mm HDPE PN 6
75mm HDPE PN 6
Pumpsets
Carrying out the following repair works occuring during the maintenance period in the Electrical, Mechanical and Elctro-mechanical items to bring back the scheme / components into normal running conditition as per standard specification including all labour charges, cost of materials and all incidental charges within the stipulated time limit etc., complete as specified in Clause 2.8 of General conditions of Contract Part II etc as directed by TWAD Board officers
Attending the Rewinding, Repair and Renewal works in various capacity Open Well Submersible Pumpsets
Removing the Submersible pumpset by using tripod set after disconnecting the power supply cable and delivery pipe line fittings
5HP -OWS
Transporting the pumpset from Pump House to work shop.
5HP -OWS
Rewinding the submersible motor using best quality winding wire including cost of wire, Sleeve, other insulating and fibre class materials after deducting the cost of old materials.
5HP -OWS
Reconditioning the worn-out shaft and fittings, impeller and Gun Metal/ SS Bushes including cost of lath work & labour charges etc.,
5HP -OWS
Replacement of carbon type thrust bearing and pumpside Gun Metal Bush including cost of labour charges after deducting the cost of old material
5HP -OWS
Transporting charges for Submersible pumpset from work shop to Pump House after attending repair works.
5HP -OWS
Re-erection of pumpset in the Sump / Well by using tripod set and required Rubber washer and Bolt & Nuts and connecting the power supply cable and delivery pipeline arrangements testing to trial pumping.
5HP -OWS
Attending the Rewinding and replacement of bearings of Induction Motor for Horizontal Split Casing Pumpsets
30HP -HSC_Motor
Charges for removing the motor from bed after disconnection of power supply cable, Earthing line and Coupling arrangements by using contractor tools and materials.
Transportation charges for conveying the motor from the Booster Station to Our work shop including loading and unloading charges.
Labour Charges for removing the two end side cover with fan arrangements and the damaged driven end and non driven end bearings.
Charges for removing the burnt wires from the rotor assembly and cleaning and checking the slots of rotor and labour charges for rewinding of Centrifugal Squirrel Cage Induction Motor after deducting the cost of old materials and including suppy and delivery of Class ‘F’ Insulation Super enameled Copper wire, required for rewinding and Fiber Glass wire, Fiber Glass Sleeves, Class ‘F’ insulation paper, Copper Socket and FG thread required for rewinding of Squirrel Cage Induction Motor
Labour Charges for reconditioning the worn out shaft for driven end and non driven end bearing seating, knurling, bend checking, and etc.,
Supply and delivery of Driven End and Non Driven End bearings suitable for the required Induction Motor
Labour Charges fixing the DE and NDE bearings correctly and neatly with required lubrications by contractors tools & Materials
Transportation charges for conveying the motor from work shop to Pumping Station
Charges for reassembling the motor with bed and pump coupling, alignment checking connecting power supply cable, including required bolt and Nuts and testing trial running etc.,
Attending the Repair and Reconditioning works of various capacities of Horizontal Split Casing Pumpsets
30HP -HSC_Pump
Charges for removing the motor from bed assembly after dismantling of Coupling arrangements and removing the pump assembly and including the provision of dummy flange arrangements by using contractor tools and materials.
Transportation charges for conveying the Pump assembly from the Pumping Station to work shop including loading and unloading charges.
Labour Charges for removing the impeller by using hydralic system, DE and NDE Bearings
Labour Charges for reconditioning the worn out shaft including welding the shaft to suit the impeller and suit the driven end and non driven end bearing seating, knurling, bend checking and etc.,
Supply, delivery and fixing of Shaft sleeves in Gun metal including machining charges and making key ways after deducting the scrap materials
Balancing of Rotor with impeller both dyanamically and Hydralically by using required dyanamic balancing machine
Supply, delivery and fixing of Gunmetal seal rings for impeller neck including machining charges after deducting the scrap materials
Supply and delivery of Driven End and Non Driven End bearings
Labour Charges fixing the DE and NDE bearings correctly and neatly with required lubrications by contractors tools & Materials
Transportation charges for conveying the Pump assembly from work shop to Pumping Station.
Charges for reassembling the Pump with Motor by using pulley and alignment checking, including required bolt and Nuts and testing trial running etc.,
SUPPLY AND DELIVERY OF SERVICE CONNECTION ACCESSORIES L.T. 1100V PVC ALUMINIUM ARMOURED UNDER GROUND CABLE WITH ISI MARK
25 Sq.mm 3.5 Core
50 Sq.mm 3.5 Core
SUPPLY AND DELIVERY OF L.T. CABLES following size sq mm 3 CORE 1.1 KV GRADE ARMOURED ALUMINIUM CONDUCTOR CROSS LINKED POLY ETHYLENE INSULATED PVC SHEATHED CABLES CONFORMING TO IS 7098 (PART I)/1988 WITH ISI MARKING
25 Sq.mm 3 Core
50 Sq.mm 3 Core
SUPPLY AND DELIVERY OF PVC INSULATED AND SHEATHED following sq mm 3 CORE FLAT TYPE COPPER CABLE CONFORMING TO IS 694/1989
SUPPLY AND DELIVERY OF 150mm dia Pressure Gauge and Vaccum guage including all accessories as per specification (For Suction and Delivery to be mounted on wall on Teak Wood Board)
Supply, delivey and fixing of MOULDED CASE CIRCUIT BREAKER (MCCB) WITH THERMO MAGNETIC RELEASE - 4 Pole
Range - 63/100A
Range - 125A
Supply, delivey and fixing of RATE FOR MIXED DI-ELECTRIC CAPACITOR WITH TNEB TEST CERTIFICATE WITH ACCESSORIES INCLUDING BANKING CONFORMIING TO IS 2834.
Supply, delivey and fixing of Electro magnetic contactors of suitable capacity in AC Three Phase rating, conforming to IS/IEC 60947-4-1.
Supply, delivey and fixing of Overload Relays: Directly operated Bimetallic Thermal overload relay which operates in case of overload and also in case of under voltage with manual and auto reset mode.
Supply, delivey and fixing of Preventer – Single Phasing - Electric Motor protection device against single phasing. The device should protect the motor against single phasing, reverse phasing and unbalance supply. The device should be suitable for any auxillary device and have provisions for mounting in panel boards. Operate without need of any auxiliary supply.
Electric Motor protection device against dry running. The device should protect the motor against Dry running. The device should be suitable for any auxillary device and have provisions for mounting in panel boards. Operate without need of any auxiliary supply
Supply, delivey and fixing of FUSE UNITS (ANCHOR /EQUIVALENT)
63 Amps Porcelain fuse unit (500 V)
200 Amps Porcelain fuse unit (500 V)
Supply, delivey and fixing of CHANGE OVER SWITCHES
16 Amps three phase 500 V 4 pole Change over switch
32 Amps three phase 500 V 4 pole Change over switch
125 Amps three phase 500 V 4 pole Change over switch
Supply, delivey and fixing of PVC INSULATED SINGLE CORE MULTI STRAND FIRE RETARDANT FLEXIBLE COPPER CABLE WITH ISI MARK CONFORMING TO IS
Supply, delivey and fixing of HRC - FUSES - HIGHER END
HRC - 16 Amps
HRC - 32 Amps
HRC - 125 Amps
Supply and delivery of the following Electrical Works :consumable items at the site of work to carryout the general maintenace works
Voltmeter Digital - Three Phase Class 1-AC
Ammeter Digital - Three Phase Class 1-1A
20W 4 Feet LED Fitting with LED (Higher end)
LED OUTDOOR FITTINGS (LIGHT EMITTING DIODE) LOWER END 25W LED Street Light Fitting with LED
Supply and delivery of the following consumable items for Pump Set repairs at the site of work to carryout the general maintenace works
50mm GM Gate valve
65mm GM Gate valve
80mm GM Gate valve
100mm GM Gate valve
R I Sheet
Bolts and Nuts - All sizes
80mm GI Pipe
100mm GI pipe
125mm GI pipe
Supply, delivery and fixing of DI D/F Gate sluice/scour valves (soft seated) resilient seated soft sealing Gate Valves(Sluice Valves) with body Bonnet of Ductile cast iron of Grade GGG 40 or equivalent grade, Wedge fully rubber lined with EPDM replaceable spindle nut without gland packing and with 3 O- Ring protection on the shaft and seals of NBR and the valves should be of Vacuum tight and 100% leak proof with face to face dimensions as per BS 5163- 89/ISI 14846-2000/DIN 3202 F4. All the valves should be with electrostatic powder coating both inside and out side with pocket less straight through body passage. All the valves are to be compatible for buried application with pressure rating PN 10/16 and with 5 years warranty.
100mm DI Gate Valve
150mm DI Gate Valve
Manufacture, Supply and Delivery of Tamper proof DI single chamber double orifice triple function (ventilating, admiting & ventilating during operation) air release valve with pressure rating PN 10/16 with body and cover made of Ductile Iron of Grade GGG 40 or GGG 50, conforming to IS 1865 with Food Grade Epoxy Powder coating (EP-P) inside and for outside of colour blue RAL 5005. All internal parts such as float, shell etc., cover bolts, made of Austenitic alloy steel of SS AISI 304/316. The float shall be made of Polytetrafluroethylene/ Austenitic alloy steel of AISI 304/316. Gaskets and seals of EPDM / Neoprene rubber for TWAD Board works anywhere in Tamil Nadu and with 5 years warranty
50mm DI Air Valve
Supply, delivey and fixing of C.I. DOUBLE AIR VALVE AS PER ISI 14845/2000 AND WITH 5 YEARS WARRANTY
40mm CI Air Valve
50mm CI Air Valve
SUMP CLEANING
Cleaning of all storage points like sumps, elevated reservoirs of various capacities available in this scheme at a frequency of once in two months including scrapping the inner side of compartment completely, scouring / dewatering / desilting using required machineries, materials, labour and all other incidental charges, application of bleaching powder/ solution etc complete.
For 15001 to 30000 lit cap sump
Desilting light or sandysoil or silt from collection well below water level including the charges for special tools & plants and air compressor etc complete
Supply, delivery and application of disinfection dosages as per standard norms / guidelines including cost of all disinfectents (Such as bleaching powder, chlorine cylinder, silver ionization rods, sodium hypochlorite solution, common salt as applicable to this CWSS), labour charges and all incidental charges for disinfection of the water supplied from this CWSS to ensure the portable quality of disinfected water at all delivery points / tail ends, testing of water samples including additional / required / instructed dosage during the period of Flood/ Calamities etc., complete.
Supply delivery of Bleaching Powder as per Relevant IS Specification
COMBINED WATER SUPPLY SCHEME TO PADAVEDU AND 46 OTHER RURAL HABITATIONS IN TIRUVANNAMALAI DISTRICT
Operation and Maintenance of the Electro Mechanical installations, equipments, components, pipelines valves and appurtenances, water retaining structures including protecton of all schemee components from damages/ theft undertaking legal actions for such untoward incidents, preventive maintenance, disinfection and deliverance of water as per quality standards and supply of earmarked quantity of water to the beneficiaries as per Annexure .........., carrying out the O&M as per standard operating procedures, Acts and rules in force and as directed by TWAD Board Oficers and excluding cost towards attending leak, burst repair and replacement works to electro mechanical installations consumables for disinfection of water, cleaning of all water retaining structure, electricity .
Repair & Renewals and Leak & Bursts :
Attending Leaks in the PVC pipelines of this CWSS for the following items, as per the standard procedure including earthwork excavation, dewatering, removing, relaying, jointing, civil works, cost of materials and all other incidental charges, etc complete within the stipulated time limit as directed by the TWAD Board officers.
PVC 4 KSC Pipes_Minor Leak
63mm OD PVC 4 KSC pipes_Minor Leak
75mm OD PVC 4 KSC pipes_Minor Leak
90mm OD PVC 4 KSC pipes_Minor Leak
110mm OD PVC 4 KSC pipes_Minor Leak
140mm OD PVC 4 KSC pipes_Minor Leak
160mm OD PVC 4 KSC pipes_Minor Leak
PVC 4 KSC Pipes_Major Leak
63mm OD PVC 4 KSC pipes_Major Leak
75mm OD PVC 4 KSC pipes_Major Leak
90mm OD PVC 4 KSC pipes_Major Leak
110mm OD PVC 4 KSC pipes_Major Leak
140mm OD PVC 4 KSC pipes_Major Leak
160mm OD PVC 4 KSC pipes_Major Leak
PVC 6 KSC Pipes_Minor Leak
50mm OD PVC 6 KSC pipes_Minor Leak
63mm OD PVC 6 KSC pipes_Minor Leak
75mm OD PVC 6 KSC pipes_Minor Leak
90mm OD PVC 6 KSC pipes_Minor Leak
110mm OD PVC 6 KSC pipes_Minor Leak
140mm OD PVC 6 KSC pipes_Minor Leak
160mm OD PVC 6 KSC pipes_Minor Leak
PVC 6 KSC Pipes_Major Leak
50mm OD PVC 6 KSC pipes_Major Leak
63mm OD PVC 6 KSC pipes_Major Leak
75mm OD PVC 6 KSC pipes_Major Leak
90mm OD PVC 6 KSC pipes_Major Leak
110mm OD PVC 6 KSC pipes_Major Leak
140mm OD PVC 6 KSC pipes_Major Leak
160mm OD PVC 6 KSC pipes_Major Leak
Attending Leaks/Bursts in the HDPE pipelines of this CWSS for the following items, as per the standard procedure including earthwork excavation, dewatering, removing, relaying, jointing by Electro fusion/butt Joint, civil works, cost of materials and all other incidental charges, etc complete within the stipulated time limit as directed by the TWAD Board officers.
HDPE PN 6 Pipes_Minor Leaks
63mm HDPE PN 6 pipes_Minor Leak
75mm HDPE PN 6 pipes_Minor Leak
110mm HDPE PN 6 pipes_Minor Leak
140mm HDPE PN 6 pipes_Minor Leak
160mm HDPE PN 6 pipes_Minor Leak
HDPE PN 6 Pipes_Major Leaks
63mm HDPE PN 6 pipes_Major Leak
75mm HDPE PN 6 pipes_Major Leak
110mm HDPE PN 6 pipes_Major Leak
140mm HDPE PN 6 pipes_Major Leak
160mm HDPE PN 6 pipes_Major Leak
Attending leaks and bursts in GI pipes of various sizes including Supply and delivery of following G I PIPES (MEDIUM) AS PER IS 1239/PART I/2004 and Lowering GI pipes and specials in the trenches and laying to proper grade and alignment, jointing with GI Specials and as directed by the TWAD Officers
50mm GI Pipe leak above GL
65mm GI Pipe leak above GL
80mm GI Pipe leak above GL
100mm GI Pipe leak above GL
125mm GI Pipe leak above GL
150mm GI Pipe leak above GL
Attending Leaks/Bursts in the DI pipelines of this CWSS for the following items, as per the standard procedure including earthwork excavation, dewatering, removing, relaying, jointing, civil works, cost of materials and all incidental charges, etc complete within the stipulated time limit as specified in Clause 2.6.4 of General conditions of Contract
DI Pipes_Minor Leak
150mm DI pipes - Minor leak
DI Pipes_Major Leak
150mm DI pipes - Major leak
Labour for cutting open B.T. Roads (or) Maccadam road for laying water mains - 15 cm thick (SOR VOL II P.195)
For all size Pumping mains
Road Restoration with PCC 1:2:4 using 20 mm HBGS for the Concrete Road cut Portion after the pipes are laid, joined and tested complete and as directed by TWAD Board Officers - 15 cm thick
For all size Pumping mains
Supply and delivery of following sizes of HDPE PIPES - PE 100 AS PER IS 4984/2016 (Pre-Compounded Resin) inclusive of transportation charges to stockyard excluding unloading anywhere in Tamilnadu etc, complete and as directed by the TWAD Board officers. (SOR VOL II P.14)
160mm HDPE PN 6
140mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
75mm HDPE PN 6
63mm HDPE PN 6
Earth work excavation and depositing on bank with initial lead of 10 m and initial lift of 2m in narrow trenches for laying of pipes for water supply in the following types of soil
Hard stiff clay, stiff black cotton, hard red earth, shales, murrum gravel, stoney earth and earth mixed with small size boulders and hard gravelly soil. (SOR VOL II P.192)
160mm HDPE PN 6
140mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
75mm HDPE PN 6
63mm HDPE PN 6
Lowering HDPE pipes and specials to trench and laying to proper grade and alignment and as directed by the TWAD Officers. (SOR VOL II P.171)
160mm HDPE PN 6
140mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
75mm HDPE PN 6
63mm HDPE PN 6
Jointing HDPE Pipes and Specials by butt fusion welding / electro fusion welding joints using fusion equipment as per ISO 21307-2011 and as per IS 7634 (part-2) : 2012 including cost of hire charges for butt fusion equipment power supply arrangements etc., complete as per directed by TWAD Board Officers. (SOR VOL II P.184)
160mm HDPE PN 6
140mm HDPE PN 6
110mm HDPE PN 6
Refiling with excavated sand or other loose soil complying with standerd specification in layers of 15 cm thick well rammed and consolidated after pipes and specials are laid and tested. (SOR VOL II P.192)
160mm HDPE PN 6
140mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
75mm HDPE PN 6
63mm HDPE PN 6
Pumpsets
Carrying out the following repair works occuring during the maintenance period in the Electrical, Mechanical and Elctro-mechanical items to bring back the scheme / components into normal running conditition as per standard specification including all labour charges, cost of materials and all incidental charges within the stipulated time limit etc., complete as specified in Clause 2.8 of General conditions of Contract Part II etc as directed by TWAD Board officers
Attending the Rewinding, Repair and Renewal works in various capacity Open Well Submersible Pumpsets
Removing the Submersible pumpset by using tripod set after disconnecting the power supply cable and delivery pipe line fittings
2HP -OWS
3HP -OWS
5HP -OWS
7.5HP -OWS
30HP -OWS
Transporting the pumpset from Pump House to work shop.
2HP -OWS
3HP -OWS
5HP -OWS
7.5HP -OWS
30HP -OWS
Rewinding the submersible motor using best quality winding wire including cost of wire, Sleeve, other insulating and fibre class materials after deducting the cost of old materials.
2HP -OWS
3HP -OWS
5HP -OWS
7.5HP -OWS
30HP -OWS
Reconditioning the worn-out shaft and fittings, impeller and Gun Metal/ SS Bushes including cost of lath work & labour charges etc.,
2HP -OWS
3HP -OWS
5HP -OWS
7.5HP -OWS
30HP -OWS
Replacement of carbon type thrust bearing and pumpside Gun Metal Bush including cost of labour charges after deducting the cost of old material
2HP -OWS
3HP -OWS
5HP -OWS
7.5HP -OWS
30HP -OWS
Transporting charges for Submersible pumpset from work shop to Pump House after attending repair works.
2HP -OWS
3HP -OWS
5HP -OWS
7.5HP -OWS
30HP -OWS
Re-erection of pumpset in the Sump / Well by using tripod set and required Rubber washer and Bolt & Nuts and connecting the power supply cable and delivery pipeline arrangements testing to trial pumping.
2HP -OWS
3HP -OWS
5HP -OWS
7.5HP -OWS
30HP -OWS
SUPPLY AND DELIVERY OF SERVICE CONNECTION ACCESSORIES L.T. 1100V PVC ALUMINIUM ARMOURED UNDER GROUND CABLE WITH ISI MARK
25 Sq.mm 3.5 Core
35 Sq.mm 3.5 Core
50 Sq.mm 3.5 Core
SUPPLY AND DELIVERY OF L.T. CABLES following size sq mm 3 CORE 1.1 KV GRADE ARMOURED ALUMINIUM CONDUCTOR CROSS LINKED POLY ETHYLENE INSULATED PVC SHEATHED CABLES CONFORMING TO IS 7098 (PART I)/1988 WITH ISI MARKING
25 Sq.mm 3 Core
35 Sq.mm 3 Core
50 Sq.mm 3 Core
SUPPLY AND DELIVERY OF PVC INSULATED AND SHEATHED following sq mm 3 CORE FLAT TYPE COPPER CABLE CONFORMING TO IS 694/1989
SUPPLY AND DELIVERY OF 150mm dia Pressure Gauge and Vaccum guage including all accessories as per specification (For Suction and Delivery to be mounted on wall on Teak Wood Board)
Supply, delivey and fixing of MOULDED CASE CIRCUIT BREAKER (MCCB) WITH THERMO MAGNETIC RELEASE - 4 Pole
Range - 63/100A
Range - 125A
Supply, delivey and fixing of RATE FOR MIXED DI-ELECTRIC CAPACITOR WITH TNEB TEST CERTIFICATE WITH ACCESSORIES INCLUDING BANKING CONFORMIING TO IS 2834.
Supply, delivey and fixing of Electro magnetic contactors of suitable capacity in AC Three Phase rating, conforming to IS/IEC 60947-4-1.
Supply, delivey and fixing of Overload Relays: Directly operated Bimetallic Thermal overload relay which operates in case of overload and also in case of under voltage with manual and auto reset mode.
Supply, delivey and fixing of Preventer – Single Phasing - Electric Motor protection device against single phasing. The device should protect the motor against single phasing, reverse phasing and unbalance supply. The device should be suitable for any auxillary device and have provisions for mounting in panel boards. Operate without need of any auxiliary supply.
Electric Motor protection device against dry running. The device should protect the motor against Dry running. The device should be suitable for any auxillary device and have provisions for mounting in panel boards. Operate without need of any auxiliary supply
Supply, delivey and fixing of FUSE UNITS (ANCHOR /EQUIVALENT)
63 Amps Porcelain fuse unit (500 V)
100 Amps Porcelain fuse unit (500 V)
200 Amps Porcelain fuse unit (500 V)
Supply, delivey and fixing of CHANGE OVER SWITCHES
32 Amps three phase 500 V 4 pole Change over switch
63 Amps three phase 500 V 4 pole Change over switch
200 Amps three phase 500 V 4 pole Change over switch
Supply, delivey and fixing of PVC INSULATED SINGLE CORE MULTI STRAND FIRE RETARDANT FLEXIBLE COPPER CABLE WITH ISI MARK CONFORMING TO IS
Supply, delivey and fixing of HRC - FUSES - HIGHER END
HRC - 32 Amps
HRC - 63 Amps
HRC - 200 Amps
Supply and delivery of the following Electrical Works :consumable items at the site of work to carryout the general maintenace works
Voltmeter Digital - Three Phase Class 1-AC
Ammeter Digital - Three Phase Class 1-1A
20W 4 Feet LED Fitting with LED (Higher end)
LED OUTDOOR FITTINGS (LIGHT EMITTING DIODE) LOWER END 25W LED Street Light Fitting with LED
Supply and delivery of the following consumable items for Pump Set repairs at the site of work to carryout the general maintenace works
50mm GM Gate valve
65mm GM Gate valve
80mm GM Gate valve
100mm GM Gate valve
R I Sheet
Bolts and Nuts - All sizes
50mm GI Pipe
65mm GI Pipe
80mm GI Pipe
100mm GI pipe
125mm GI pipe
150mm GI pipe
Supply, delivery and fixing of DI D/F Gate sluice/scour valves (soft seated) resilient seated soft sealing Gate Valves(Sluice Valves) with body Bonnet of Ductile cast iron of Grade GGG 40 or equivalent grade, Wedge fully rubber lined with EPDM replaceable spindle nut without gland packing and with 3 O- Ring protection on the shaft and seals of NBR and the valves should be of Vacuum tight and 100% leak proof with face to face dimensions as per BS 5163- 89/ISI 14846-2000/DIN 3202 F4. All the valves should be with electrostatic powder coating both inside and out side with pocket less straight through body passage. All the valves are to be compatible for buried application with pressure rating PN 10/16 and with 5 years warranty.
100mm DI Gate Valve
150mm DI Gate Valve
Manufacture, Supply and Delivery of Tamper proof DI single chamber double orifice triple function (ventilating, admiting & ventilating during operation) air release valve with pressure rating PN 10/16 with body and cover made of Ductile Iron of Grade GGG 40 or GGG 50, conforming to IS 1865 with Food Grade Epoxy Powder coating (EP-P) inside and for outside of colour blue RAL 5005. All internal parts such as float, shell etc., cover bolts, made of Austenitic alloy steel of SS AISI 304/316. The float shall be made of Polytetrafluroethylene/ Austenitic alloy steel of AISI 304/316. Gaskets and seals of EPDM / Neoprene rubber for TWAD Board works anywhere in Tamil Nadu and with 5 years warranty
50mm DI Air Valve
Supply, delivey and fixing of C.I. DOUBLE AIR VALVE AS PER ISI 14845/2000 AND WITH 5 YEARS WARRANTY
40mm CI Air Valve
50mm CI Air Valve
SUMP CLEANING
Cleaning of all storage points like sumps, elevated reservoirs of various capacities available in this scheme at a frequency of once in two months including scrapping the inner side of compartment completely, scouring / dewatering / desilting using required machineries, materials, labour and all other incidental charges, application of bleaching powder/ solution etc complete.
For 15001 to 30000 lit cap sump
For 30001 to 45000 lit cap sump
For 45001 to 60000 lit cap sump
Desilting light or sandysoil or silt from collection well below water level including the charges for special tools & plants and air compressor etc complete
Supply, delivery and application of disinfection dosages as per standard norms / guidelines including cost of all disinfectents (Such as bleaching powder, chlorine cylinder, silver ionization rods, sodium hypochlorite solution, common salt as applicable to this CWSS), labour charges and all incidental charges for disinfection of the water supplied from this CWSS to ensure the portable quality of disinfected water at all delivery points / tail ends, testing of water samples including additional / required / instructed dosage during the period of Flood/ Calamities etc., complete.
Supply delivery of Bleaching Powder as per Relevant IS Specification
CWSS TO VETTAVALAM RTP AND VAIPUR HABITATION IN TIRUVANNAMALAI DISTRICT
Operation and Maintenance of the Electro Mechanical installations, equipments, components, pipelines valves and appurtenances, water retaining structures including protecton of all schemee components from damages/ theft undertaking legal actions for such untoward incidents, preventive maintenance, disinfection and deliverance of water as per quality standards and supply of earmarked quantity of water to the beneficiaries as per Annexure .........., carrying out the O&M as per standard operating procedures, Acts and rules in force and as directed by TWAD Board Oficers and excluding cost towards attending leak, burst repair and replacement works to electro mechanical installations consumables for disinfection of water, cleaning of all water retaining structure, electricity .
Repair & Renewals and Leak & Bursts :
Attending joint (Collar) Leaks in the AC pipelines of this CWSS for the following items, as per the standard procedure including earthwork excavation, dewatering, removing, relaying, jointing, civil works, cost of materials and all incidental charges, etc complete within the stipulated time limit as specified in Clause 2.6.4 of General conditions of Contract
AC Pipe_Collar Leak
200mm AC_Collar Leak
AC Pipe_Minor Leak centre crack
200mm AC Pipe_MS Cut Barrel
Attending Leaks/Bursts in the DI pipelines of this CWSS for the following items, as per the standard procedure including earthwork excavation, dewatering, removing, relaying, jointing, civil works, cost of materials and all incidental charges, etc complete within the stipulated time limit as specified in Clause 2.6.4 of General conditions of Contract
DI Pipes_Minor Leak
200mm DI pipes - Minor leak
DI Pipes_Major Leak
200mm DI pipes - Major leak
Labour for cutting open B.T. Roads (or) Maccadam road for laying water mains - 15 cm thick (SOR VOL II P.195)
For all size Pumping mains
Road Restoration with PCC 1:2:4 using 20 mm HBGS for the Concrete Road cut Portion after the pipes are laid, joined and tested complete and as directed by TWAD Board Officers - 15 cm thick
For all size Pumping mains
Supply and conveying of DI DUCTILE IRON SOCKET/SPIGOT PIPES FOR CLASS K7 AS PER IS 8329/2000 for standard length including cost of pipe,testing charges at factory ,labour charges for loading,unloading and stacking at site etc.(SOR VOL II P.35)
200mm DI S/S K7 pipe
Supply and delivery of following sizes of HDPE PIPES - PE 100 AS PER IS 4984/2016 (Pre-Compounded Resin) inclusive of transportation charges to stockyard excluding unloading anywhere in Tamilnadu etc, complete and as directed by the TWAD Board officers. (SOR VOL II P.14)
90mm HDPE PN 6
Earth work excavation and depositing on bank with initial lead of 10 m and initial lift of 2m in narrow trenches for laying of pipes for water supply in the following types of soil
Hard stiff clay, stiff black cotton, hard red earth, shales, murrum gravel, stoney earth and earth mixed with small size boulders and hard gravelly soil. (SOR VOL II P.192)
200mm DI S/S K7 pipe
90mm HDPE PN 6
Lowering of D.I Pipes and specials in the trenches and laying to proper grade and alignment and as directed by the TWAD Officers.
200mm DI S/S K7 pipe
Jointing C.I/ D.I-S/S pipes and specials with rubber gaskets (tyton joint) including cost of lubricants. (including cost of jointing materials)(SOR VOL II P.164)
200mm DI S/S K7 pipe
Lowering HDPE pipes and specials to trench and laying to proper grade and alignment and as directed by the TWAD Officers. (SOR VOL II P.171)
90mm HDPE PN 6
Jointing HDPE Pipes and Specials by butt fusion welding / electro fusion welding joints using fusion equipment as per ISO 21307-2011 and as per IS 7634 (part-2) : 2012 including cost of hire charges for butt fusion equipment power supply arrangements etc., complete as per directed by TWAD Board Officers. (SOR VOL II P.184)
Refiling with excavated sand or other loose soil complying with standerd specification in layers of 15 cm thick well rammed and consolidated after pipes and specials are laid and tested. (SOR VOL II P.192)
200mm DI S/S K7 pipe
90mm HDPE PN 6
Pumpsets
Carrying out the following repair works occuring during the maintenance period in the Electrical, Mechanical and Elctro-mechanical items to bring back the scheme / components into normal running conditition as per standard specification including all labour charges, cost of materials and all incidental charges within the stipulated time limit etc., complete as specified in Clause 2.8 of General conditions of Contract Part II etc as directed by TWAD Board officers
Attending the Rewinding, Repair and Renewal works in various capacity Open Well Submersible Pumpsets
Removing the Submersible pumpset by using tripod set after disconnecting the power supply cable and delivery pipe line fittings
7.5HP -OWS
10HP -OWS
30HP -OWS
40HP -OWS
Transporting the pumpset from Pump House to work shop.
7.5HP -OWS
10HP -OWS
30HP -OWS
40HP -OWS
Rewinding the submersible motor using best quality winding wire including cost of wire, Sleeve, other insulating and fibre class materials after deducting the cost of old materials.
7.5HP -OWS
10HP -OWS
30HP -OWS
40HP -OWS
Reconditioning the worn-out shaft and fittings, impeller and Gun Metal/ SS Bushes including cost of lath work & labour charges etc.,
7.5HP -OWS
10HP -OWS
30HP -OWS
40HP -OWS
Replacement of carbon type thrust bearing and pumpside Gun Metal Bush including cost of labour charges after deducting the cost of old material
7.5HP -OWS
10HP -OWS
30HP -OWS
40HP -OWS
Transporting charges for Submersible pumpset from work shop to Pump House after attending repair works.
7.5HP -OWS
10HP -OWS
30HP -OWS
40HP -OWS
Re-erection of pumpset in the Sump / Well by using tripod set and required Rubber washer and Bolt & Nuts and connecting the power supply cable and delivery pipeline arrangements testing to trial pumping.
7.5HP -OWS
10HP -OWS
30HP -OWS
40HP -OWS
SUPPLY AND DELIVERY OF SERVICE CONNECTION ACCESSORIES L.T. 1100V PVC ALUMINIUM ARMOURED UNDER GROUND CABLE WITH ISI MARK
25 Sq.mm 3.5 Core
35 Sq.mm 3.5 Core
95 Sq.mm 3.5 Core
SUPPLY AND DELIVERY OF L.T. CABLES following size sq mm 3 CORE 1.1 KV GRADE ARMOURED ALUMINIUM CONDUCTOR CROSS LINKED POLY ETHYLENE INSULATED PVC SHEATHED CABLES CONFORMING TO IS 7098 (PART I)/1988 WITH ISI MARKING
25 Sq.mm 3 Core
50 Sq.mm 3 Core
70 Sq.mm 3Core
SUPPLY AND DELIVERY OF PVC INSULATED AND SHEATHED following sq mm 3 CORE FLAT TYPE COPPER CABLE CONFORMING TO IS 694/1989
SUPPLY AND DELIVERY OF 150mm dia Pressure Gauge and Vaccum guage including all accessories as per specification (For Suction and Delivery to be mounted on wall on Teak Wood Board)
Supply, delivey and fixing of MOULDED CASE CIRCUIT BREAKER (MCCB) WITH THERMO MAGNETIC RELEASE - 4 Pole
Range - 63/100A
Range - 125A
Range - 160A
Supply, delivey and fixing of RATE FOR MIXED DI-ELECTRIC CAPACITOR WITH TNEB TEST CERTIFICATE WITH ACCESSORIES INCLUDING BANKING CONFORMIING TO IS 2834.
Supply, delivey and fixing of Electro magnetic contactors of suitable capacity in AC Three Phase rating, conforming to IS/IEC 60947-4-1.
Supply, delivey and fixing of Overload Relays: Directly operated Bimetallic Thermal overload relay which operates in case of overload and also in case of under voltage with manual and auto reset mode.
Supply, delivey and fixing of Preventer – Single Phasing - Electric Motor protection device against single phasing. The device should protect the motor against single phasing, reverse phasing and unbalance supply. The device should be suitable for any auxillary device and have provisions for mounting in panel boards. Operate without need of any auxiliary supply.
Electric Motor protection device against dry running. The device should protect the motor against Dry running. The device should be suitable for any auxillary device and have provisions for mounting in panel boards. Operate without need of any auxiliary supply
Supply, delivey and fixing of FUSE UNITS (ANCHOR /EQUIVALENT)
200 Amps Porcelain fuse unit (500 V)
Supply, delivey and fixing of CHANGE OVER SWITCHES
32 Amps three phase 500 V 4 pole Change over switch
63 Amps three phase 500 V 4 pole Change over switch
Supply, delivey and fixing of PVC INSULATED SINGLE CORE MULTI STRAND FIRE RETARDANT FLEXIBLE COPPER CABLE WITH ISI MARK CONFORMING TO IS
Supply, delivey and fixing of HRC - FUSES - HIGHER END
HRC - 32 Amps
HRC - 63 Amps
Supply and delivery of the following Electrical Works :consumable items at the site of work to carryout the general maintenace works
Voltmeter Digital - Three Phase Class 1-AC
Ammeter Digital - Three Phase Class 1-1A
20W 4 Feet LED Fitting with LED (Higher end)
LED OUTDOOR FITTINGS (LIGHT EMITTING DIODE) LOWER END 25W LED Street Light Fitting with LED
Supply and delivery of the following consumable items for Pump Set repairs at the site of work to carryout the general maintenace works
80mm GM Gate valve
100mm GM Gate valve
R I Sheet
Bolts and Nuts - All sizes
150mm GI pipe
Supply, delivery and fixing of DI D/F Gate sluice/scour valves (soft seated) resilient seated soft sealing Gate Valves(Sluice Valves) with body Bonnet of Ductile cast iron of Grade GGG 40 or equivalent grade, Wedge fully rubber lined with EPDM replaceable spindle nut without gland packing and with 3 O- Ring protection on the shaft and seals of NBR and the valves should be of Vacuum tight and 100% leak proof with face to face dimensions as per BS 5163- 89/ISI 14846-2000/DIN 3202 F4. All the valves should be with electrostatic powder coating both inside and out side with pocket less straight through body passage. All the valves are to be compatible for buried application with pressure rating PN 10/16 and with 5 years warranty.
100mm DI Gate Valve
150mm DI Gate Valve
Manufacture, Supply and Delivery of Tamper proof DI single chamber double orifice triple function (ventilating, admiting & ventilating during operation) air release valve with pressure rating PN 10/16 with body and cover made of Ductile Iron of Grade GGG 40 or GGG 50, conforming to IS 1865 with Food Grade Epoxy Powder coating (EP-P) inside and for outside of colour blue RAL 5005. All internal parts such as float, shell etc., cover bolts, made of Austenitic alloy steel of SS AISI 304/316. The float shall be made of Polytetrafluroethylene/ Austenitic alloy steel of AISI 304/316. Gaskets and seals of EPDM / Neoprene rubber for TWAD Board works anywhere in Tamil Nadu and with 5 years warranty
50mm DI Air Valve
Supply, delivey and fixing of C.I. DOUBLE AIR VALVE AS PER ISI 14845/2000 AND WITH 5 YEARS WARRANTY
50mm CI Air Valve
SUMP CLEANING
Cleaning of all storage points like sumps, elevated reservoirs of various capacities available in this scheme at a frequency of once in two months including scrapping the inner side of compartment completely, scouring / dewatering / desilting using required machineries, materials, labour and all other incidental charges, application of bleaching powder/ solution etc complete.
For 75001 to 100000 lit cap sump
Desilting light or sandysoil or silt from collection well below water level including the charges for special tools & plants and air compressor etc complete
Supply, delivery and application of disinfection dosages as per standard norms / guidelines including cost of all disinfectents (Such as bleaching powder, chlorine cylinder, silver ionization rods, sodium hypochlorite solution, common salt as applicable to this CWSS), labour charges and all incidental charges for disinfection of the water supplied from this CWSS to ensure the portable quality of disinfected water at all delivery points / tail ends, testing of water samples including additional / required / instructed dosage during the period of Flood/ Calamities etc., complete.
Supply delivery of Bleaching Powder as per Relevant IS Specification
WSS TO AAVIN DAIRY CUM POWDER PLANT AT AMMAPALAYAM IN TIRUVANNAMALAI DISTRICT
Operation and Maintenance of the Electro Mechanical installations, equipments, components, pipelines valves and appurtenances, water retaining structures including protecton of all schemee components from damages/ theft undertaking legal actions for such untoward incidents, preventive maintenance, disinfection and deliverance of water as per quality standards and supply of earmarked quantity of water to the beneficiaries as per Annexure .........., carrying out the O&M as per standard operating procedures, Acts and rules in force and as directed by TWAD Board Oficers and excluding cost towards attending leak, burst repair and replacement works to electro mechanical installations consumables for disinfection of water, cleaning of all water retaining structure, electricity .
Repair & Renewals and Leak & Bursts :
Attending Leaks/Bursts in the DI pipelines of this CWSS for the following items, as per the standard procedure including earthwork excavation, dewatering, removing, relaying, jointing, civil works, cost of materials and all incidental charges, etc complete within the stipulated time limit as specified in Clause 2.6.4 of General conditions of Contract
DI Pipes_Minor Leak
150mm DI pipes - Minor leak
DI Pipes_Major Leak
150mm DI pipes - Major leak
Labour for cutting open B.T. Roads (or) Maccadam road for laying water mains - 15 cm thick (SOR VOL II P.195)
For all size Pumping mains
Road Restoration with PCC 1:2:4 using 20 mm HBGS for the Concrete Road cut Portion after the pipes are laid, joined and tested complete and as directed by TWAD Board Officers - 15 cm thick
For all size Pumping mains
Supply and conveying of DI DUCTILE IRON SOCKET/SPIGOT PIPES FOR CLASS K7 AS PER IS 8329/2000 for standard length including cost of pipe,testing charges at factory ,labour charges for loading,unloading and stacking at site etc.(SOR VOL II P.35)
150mm DI S/S K7 pipe
Earth work excavation and depositing on bank with initial lead of 10 m and initial lift of 2m in narrow trenches for laying of pipes for water supply in the following types of soil
Hard stiff clay, stiff black cotton, hard red earth, shales, murrum gravel, stoney earth and earth mixed with small size boulders and hard gravelly soil. (SOR VOL II P.192)
150mm DI S/S K7 pipe
Lowering of D.I Pipes and specials in the trenches and laying to proper grade and alignment and as directed by the TWAD Officers.
150mm DI S/S K7 pipe
Jointing C.I/ D.I-S/S pipes and specials with rubber gaskets (tyton joint) including cost of lubricants. (including cost of jointing materials)(SOR VOL II P.164)
150mm DI S/S K7 pipe
Refiling with excavated sand or other loose soil complying with standerd specification in layers of 15 cm thick well rammed and consolidated after pipes and specials are laid and tested. (SOR VOL II P.192)
150mm DI S/S K7 pipe
Pumpsets
Carrying out the following repair works occuring during the maintenance period in the Electrical, Mechanical and Elctro-mechanical items to bring back the scheme / components into normal running conditition as per standard specification including all labour charges, cost of materials and all incidental charges within the stipulated time limit etc., complete as specified in Clause 2.8 of General conditions of Contract Part II etc as directed by TWAD Board officers
Attending the Rewinding, Repair and Renewal works in various capacity Open Well Submersible Pumpsets
Removing the Submersible pumpset by using tripod set after disconnecting the power supply cable and delivery pipe line fittings
5HP -OWS
25HP -OWS
Transporting the pumpset from Pump House to work shop.
5HP -OWS
25HP -OWS
Rewinding the submersible motor using best quality winding wire including cost of wire, Sleeve, other insulating and fibre class materials after deducting the cost of old materials.
5HP -OWS
25HP -OWS
Reconditioning the worn-out shaft and fittings, impeller and Gun Metal/ SS Bushes including cost of lath work & labour charges etc.,
5HP -OWS
25HP -OWS
Replacement of carbon type thrust bearing and pumpside Gun Metal Bush including cost of labour charges after deducting the cost of old material
5HP -OWS
25HP -OWS
Transporting charges for Submersible pumpset from work shop to Pump House after attending repair works.
5HP -OWS
25HP -OWS
Re-erection of pumpset in the Sump / Well by using tripod set and required Rubber washer and Bolt & Nuts and connecting the power supply cable and delivery pipeline arrangements testing to trial pumping.
5HP -OWS
25HP -OWS
SUPPLY AND DELIVERY OF SERVICE CONNECTION ACCESSORIES L.T. 1100V PVC ALUMINIUM ARMOURED UNDER GROUND CABLE WITH ISI MARK
25 Sq.mm 3.5 Core
50 Sq.mm 3.5 Core
SUPPLY AND DELIVERY OF L.T. CABLES following size sq mm 3 CORE 1.1 KV GRADE ARMOURED ALUMINIUM CONDUCTOR CROSS LINKED POLY ETHYLENE INSULATED PVC SHEATHED CABLES CONFORMING TO IS 7098 (PART I)/1988 WITH ISI MARKING
25 Sq.mm 3 Core
SUPPLY AND DELIVERY OF PVC INSULATED AND SHEATHED following sq mm 3 CORE FLAT TYPE COPPER CABLE CONFORMING TO IS 694/1989
SUPPLY AND DELIVERY OF 150mm dia Pressure Gauge and Vaccum guage including all accessories as per specification (For Suction and Delivery to be mounted on wall on Teak Wood Board)
Supply, delivey and fixing of MOULDED CASE CIRCUIT BREAKER (MCCB) WITH THERMO MAGNETIC RELEASE - 4 Pole
Range - 63/100A
Supply, delivey and fixing of RATE FOR MIXED DI-ELECTRIC CAPACITOR WITH TNEB TEST CERTIFICATE WITH ACCESSORIES INCLUDING BANKING CONFORMIING TO IS 2834.
Supply, delivey and fixing of Electro magnetic contactors of suitable capacity in AC Three Phase rating, conforming to IS/IEC 60947-4-1.
Supply, delivey and fixing of Overload Relays: Directly operated Bimetallic Thermal overload relay which operates in case of overload and also in case of under voltage with manual and auto reset mode.
Supply, delivey and fixing of Preventer – Single Phasing - Electric Motor protection device against single phasing. The device should protect the motor against single phasing, reverse phasing and unbalance supply. The device should be suitable for any auxillary device and have provisions for mounting in panel boards. Operate without need of any auxiliary supply.
Electric Motor protection device against dry running. The device should protect the motor against Dry running. The device should be suitable for any auxillary device and have provisions for mounting in panel boards. Operate without need of any auxiliary supply
Supply, delivey and fixing of FUSE UNITS (ANCHOR /EQUIVALENT)
200 Amps Porcelain fuse unit (500 V)
Supply, delivey and fixing of CHANGE OVER SWITCHES
32 Amps three phase 500 V 4 pole Change over switch
100 Amps three phase 500 V 4 pole Change over switch
Supply, delivey and fixing of PVC INSULATED SINGLE CORE MULTI STRAND FIRE RETARDANT FLEXIBLE COPPER CABLE WITH ISI MARK CONFORMING TO IS
Supply, delivey and fixing of HRC - FUSES - HIGHER END
HRC - 32 Amps
HRC - 125 Amps
Supply and delivery of the following Electrical Works :consumable items at the site of work to carryout the general maintenace works
Voltmeter Digital - Three Phase Class 1-AC
Ammeter Digital - Three Phase Class 1-1A
20W 4 Feet LED Fitting with LED (Higher end)
LED OUTDOOR FITTINGS (LIGHT EMITTING DIODE) LOWER END 25W LED Street Light Fitting with LED
Supply and delivery of the following consumable items for Pump Set repairs at the site of work to carryout the general maintenace works
100mm GM Gate valve
R I Sheet
Bolts and Nuts - All sizes
125mm GI pipe
150mm GI pipe
Supply, delivery and fixing of DI D/F Gate sluice/scour valves (soft seated) resilient seated soft sealing Gate Valves(Sluice Valves) with body Bonnet of Ductile cast iron of Grade GGG 40 or equivalent grade, Wedge fully rubber lined with EPDM replaceable spindle nut without gland packing and with 3 O- Ring protection on the shaft and seals of NBR and the valves should be of Vacuum tight and 100% leak proof with face to face dimensions as per BS 5163- 89/ISI 14846-2000/DIN 3202 F4. All the valves should be with electrostatic powder coating both inside and out side with pocket less straight through body passage. All the valves are to be compatible for buried application with pressure rating PN 10/16 and with 5 years warranty.
100mm DI Gate Valve
150mm DI Gate Valve
Manufacture, Supply and Delivery of Tamper proof DI single chamber double orifice triple function (ventilating, admiting & ventilating during operation) air release valve with pressure rating PN 10/16 with body and cover made of Ductile Iron of Grade GGG 40 or GGG 50, conforming to IS 1865 with Food Grade Epoxy Powder coating (EP-P) inside and for outside of colour blue RAL 5005. All internal parts such as float, shell etc., cover bolts, made of Austenitic alloy steel of SS AISI 304/316. The float shall be made of Polytetrafluroethylene/ Austenitic alloy steel of AISI 304/316. Gaskets and seals of EPDM / Neoprene rubber for TWAD Board works anywhere in Tamil Nadu and with 5 years warranty
50mm DI Air Valve
Supply, delivey and fixing of C.I. DOUBLE AIR VALVE AS PER ISI 14845/2000 AND WITH 5 YEARS WARRANTY
50mm CI Air Valve
SUMP CLEANING
Cleaning of all storage points like sumps, elevated reservoirs of various capacities available in this scheme at a frequency of once in two months including scrapping the inner side of compartment completely, scouring / dewatering / desilting using required machineries, materials, labour and all other incidental charges, application of bleaching powder/ solution etc complete.
For 175001 to 200000 lit cap sump
Desilting light or sandysoil or silt from collection well below water level including the charges for special tools & plants and air compressor etc complete
Supply, delivery and application of disinfection dosages as per standard norms / guidelines including cost of all disinfectents (Such as bleaching powder, chlorine cylinder, silver ionization rods, sodium hypochlorite solution, common salt as applicable to this CWSS), labour charges and all incidental charges for disinfection of the water supplied from this CWSS to ensure the portable quality of disinfected water at all delivery points / tail ends, testing of water samples including additional / required / instructed dosage during the period of Flood/ Calamities etc., complete.
Supply delivery of Bleaching Powder as per Relevant IS Specification
Supply delivery of Liquid Chlorine as per Relevant IS Specification
Supply delivery of Alum as per Relevant IS Specification
COMBINED WATER SUPPLY SCHEME TO NALLUR AND 74 OTHER HABITATIONS IN VANDAVASI UNION OF TIRUVANNAMALAI DISTRICT
Operation and Maintenance of the Electro Mechanical installations, equipments, components, pipelines valves and appurtenances, water retaining structures including protecton of all schemee components from damages/ theft undertaking legal actions for such untoward incidents, preventive maintenance, disinfection and deliverance of water as per quality standards and supply of earmarked quantity of water to the beneficiaries as per Annexure .........., carrying out the O&M as per standard operating procedures, Acts and rules in force and as directed by TWAD Board Oficers and excluding cost towards attending leak, burst repair and replacement works to electro mechanical installations consumables for disinfection of water, cleaning of all water retaining structure, electricity .
Repair & Renewals and Leak & Bursts :
Attending Leaks in the PVC pipelines of this CWSS for the following items, as per the standard procedure including earthwork excavation, dewatering, removing, relaying, jointing, civil works, cost of materials and all other incidental charges, etc complete within the stipulated time limit as directed by the TWAD Board officers.
PVC 4 KSC Pipes_Minor Leak
63mm OD PVC 4 KSC pipes_Minor Leak
75mm OD PVC 4 KSC pipes_Minor Leak
90mm OD PVC 4 KSC pipes_Minor Leak
110mm OD PVC 4 KSC pipes_Minor Leak
140mm OD PVC 4 KSC pipes_Minor Leak
160mm OD PVC 4 KSC pipes_Minor Leak
PVC 4 KSC Pipes_Major Leak
63mm OD PVC 4 KSC pipes_Major Leak
75mm OD PVC 4 KSC pipes_Major Leak
90mm OD PVC 4 KSC pipes_Major Leak
110mm OD PVC 4 KSC pipes_Major Leak
140mm OD PVC 4 KSC pipes_Major Leak
160mm OD PVC 4 KSC pipes_Major Leak
Attending Leaks/Bursts in the HDPE pipelines of this CWSS for the following items, as per the standard procedure including earthwork excavation, dewatering, removing, relaying, jointing by Electro fusion/butt Joint, civil works, cost of materials and all other incidental charges, etc complete within the stipulated time limit as directed by the TWAD Board officers.
HDPE PN 6 Pipes_Minor Leaks
63mm HDPE PN 6 pipes_Minor Leak
75mm HDPE PN 6 pipes_Minor Leak
90mm HDPE PN 6 pipes_Minor Leak
140mm HDPE PN 6 pipes_Minor Leak
160mm HDPE PN 6 pipes_Minor Leak
HDPE PN 6 Pipes_Major Leaks
63mm HDPE PN 6 pipes_Major Leak
75mm HDPE PN 6 pipes_Major Leak
90mm HDPE PN 6 pipes_Major Leak
140mm HDPE PN 6 pipes_Major Leak
160mm HDPE PN 6 pipes_Major Leak
Attending leaks and bursts in GI pipes of various sizes including Supply and delivery of following G I PIPES (MEDIUM) AS PER IS 1239/PART I/2004 and Lowering GI pipes and specials in the trenches and laying to proper grade and alignment, jointing with GI Specials and as directed by the TWAD Officers
80mm GI Pipe leak above GL
100mm GI Pipe leak above GL
125mm GI Pipe leak above GL
150mm GI Pipe leak above GL
Attending joint (Collar) Leaks in the AC pipelines of this CWSS for the following items, as per the standard procedure including earthwork excavation, dewatering, removing, relaying, jointing, civil works, cost of materials and all incidental charges, etc complete within the stipulated time limit as specified in Clause 2.6.4 of General conditions of Contract
AC Pipe_Collar Leak
150mm AC_Collar Leak
250mm AC_Collar Leak
AC Pipe_Minor Leak centre crack
150mm AC Pipe_MS Cut Barrel
250mm AC Pipe_MS Cut Barrel
Attending joint Leaks and center crack in the PSC pipelines of this CWSS for the following items, as per the standard procedure including earthwork excavation, dewatering, removing, relaying, jointing, civil works, cost of materials and all incidental charges, etc complete within the stipulated time limit as specified in Clause 2.6.4 of General conditions of Contract
350mm PSC Pipe Collar Leak
350mm PSC Pipe Centre Crack MS Cut Barrel
Labour for cutting open B.T. Roads (or) Maccadam road for laying water mains - 15 cm thick (SOR VOL II P.195)
For all size Pumping mains
Road Restoration with PCC 1:2:4 using 20 mm HBGS for the Concrete Road cut Portion after the pipes are laid, joined and tested complete and as directed by TWAD Board Officers - 15 cm thick
For all size Pumping mains
MATERIALS
Supply and delivery of following sizes of HDPE PIPES - PE 100 AS PER IS 4984/2016 (Pre-Compounded Resin) inclusive of transportation charges to stockyard excluding unloading anywhere in Tamilnadu etc, complete and as directed by the TWAD Board officers. (SOR VOL II P.14)
160mm HDPE PN 6
140mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
75mm HDPE PN 6
63mm HDPE PN 6
CIVIL WORKS
Earth work excavation and depositing on bank with initial lead of 10 m and initial lift of 2m in narrow trenches for laying of pipes for water supply in the following types of soil
Hard stiff clay, stiff black cotton, hard red earth, shales, murrum gravel, stoney earth and earth mixed with small size boulders and hard gravelly soil. (SOR VOL II P.192)
160mm HDPE PN 6
140mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
75mm HDPE PN 6
63mm HDPE PN 6
Lowering HDPE pipes and specials to trench and laying to proper grade and alignment and as directed by the TWAD Officers. (SOR VOL II P.171)
160mm HDPE PN 6
140mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
75mm HDPE PN 6
63mm HDPE PN 6
Jointing HDPE Pipes and Specials by butt fusion welding / electro fusion welding joints using fusion equipment as per ISO 21307-2011 and as per IS 7634 (part-2) : 2012 including cost of hire charges for butt fusion equipment power supply arrangements etc., complete as per directed by TWAD Board Officers. (SOR VOL II P.184)
160mm HDPE PN 6
140mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
75mm HDPE PN 6
63mm HDPE PN 6
Refiling with excavated sand or other loose soil complying with standerd specification in layers of 15 cm thick well rammed and consolidated after pipes and specials are laid and tested. (SOR VOL II P.192)
160mm HDPE PN 6
140mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
75mm HDPE PN 6
63mm HDPE PN 6
Pumpsets
Carrying out the following repair works occuring during the maintenance period in the Electrical, Mechanical and Elctro-mechanical items to bring back the scheme / components into normal running conditition as per standard specification including all labour charges, cost of materials and all incidental charges within the stipulated time limit etc., complete as specified in Clause 2.8 of General conditions of Contract Part II etc as directed by TWAD Board officers
Attending the Rewinding, Repair and Renewal works in various capacity Open Well Submersible Pumpsets
Removing the Submersible pumpset by using tripod set after disconnecting the power supply cable and delivery pipe line fittings
10HP -OWS
12.50HP -OWS
7.5HP -OWS
Transporting the pumpset from Pump House to work shop.
10HP -OWS
12.50HP -OWS
7.5HP -OWS
Rewinding the submersible motor using best quality winding wire including cost of wire, Sleeve, other insulating and fibre class materials after deducting the cost of old materials.
10HP -OWS
12.50HP -OWS
7.5HP -OWS
Reconditioning the worn-out shaft and fittings, impeller and Gun Metal/ SS Bushes including cost of lath work & labour charges etc.,
10HP -OWS
12.50HP -OWS
7.5HP -OWS
Replacement of carbon type thrust bearing and pumpside Gun Metal Bush including cost of labour charges after deducting the cost of old material
10HP -OWS
12.50HP -OWS
7.5HP -OWS
Transporting charges for Submersible pumpset from work shop to Pump House after attending repair works.
10HP -OWS
12.50HP -OWS
7.5HP -OWS
Re-erection of pumpset in the Sump / Well by using tripod set and required Rubber washer and Bolt & Nuts and connecting the power supply cable and delivery pipeline arrangements testing to trial pumping.
10HP -OWS
12.50HP -OWS
7.5HP -OWS
Attending the Rewinding, Repair and Renewal works in Monoblock Pumpset
5HP_Monoblock
Removing the Monblock Centrifugal Pumpset from the Bed assembly by using contractors tools and materials after disconnecting the power supply cable and delivery pipe line fittings with required dummy plate arrangements.
Transporting the pumpset from the Pumping Station to work shop.
Removing the Burnt winding materials from the stator slots and cleaning the stator and rotor assembly by using contractor tools and materials
Reconditioning the worn-out shaft and fittings, impeller and Rope gland bush including cost of lath work & labour charges etc.,
Rewinding the Monblock Centrifugal Motor using best quality winding wire including cost of wire, Sleeve, other insulating and fibre class materials after deducting the cost of old materials.
Replacement of driven end (No: XXXX) and Non driven end (No:XXXX) Bearings suitable for Monblock Centrifugal Motor including the cost of Bearing and labour charges after deducting the cost of old materials.
Replacement of cooling fan at motor end and Terminal Board for suitable for Monblock Centrifugal Pumpset and labour charges after deducting the cost of old materials.
Transporting charges for Monblock Centrifugal Pumpset from work shop to Pump House after attending repair works.
Re-erection of pumpset in the Sump / Well by using required Rubber washer and Bolt & Nuts and connecting the power supply cable and delivery pipe line arrangements, testing and trial pumping.
7.5HP_Monoblock
Removing the Monblock Centrifugal Pumpset from the Bed assembly by using contractors tools and materials after disconnecting the power supply cable and delivery pipe line fittings with required dummy plate arrangements.
Transporting the pumpset from the Pumping Station to work shop.
Removing the Burnt winding materials from the stator slots and cleaning the stator and rotor assembly by using contractor tools and materials
Reconditioning the worn-out shaft and fittings, impeller and Rope gland bush including cost of lath work & labour charges etc.,
Rewinding the Monblock Centrifugal Motor using best quality winding wire including cost of wire, Sleeve, other insulating and fibre class materials after deducting the cost of old materials.
Replacement of driven end (No: XXXX) and Non driven end (No:XXXX) Bearings suitable for Monblock Centrifugal Motor including the cost of Bearing and labour charges after deducting the cost of old materials.
Replacement of cooling fan at motor end and Terminal Board for suitable for Monblock Centrifugal Pumpset and labour charges after deducting the cost of old materials.
Transporting charges for Monblock Centrifugal Pumpset from work shop to Pump House after attending repair works.
Re-erection of pumpset in the Sump / Well by using required Rubber washer and Bolt & Nuts and connecting the power supply cable and delivery pipe line arrangements, testing and trial pumping.
60HP-HSC_Motor
Charges for removing the motor from bed after disconnection of power supply cable, Earthing line and Coupling arrangements by using contractor tools and materials.
Transportation charges for conveying the motor from the Booster Station to Our work shop including loading and unloading charges.
Labour Charges for removing the two end side cover with fan arrangements and the damaged driven end and non driven end bearings.
Charges for removing the burnt wires from the rotor assembly and cleaning and checking the slots of rotor and labour charges for rewinding of Centrifugal Squirrel Cage Induction Motor after deducting the cost of old materials and including suppy and delivery of Class ‘F’ Insulation Super enameled Copper wire, required for rewinding and Fiber Glass wire, Fiber Glass Sleeves, Class ‘F’ insulation paper, Copper Socket and FG thread required for rewinding of Squirrel Cage Induction Motor
Labour Charges for reconditioning the worn out shaft for driven end and non driven end bearing seating, knurling, bend checking, and etc.,
Supply and delivery of Driven End and Non Driven End bearings suitable for the required Induction Motor
Labour Charges fixing the DE and NDE bearings correctly and neatly with required lubrications by contractors tools & Materials
Transportation charges for conveying the motor from work shop to Pumping Station
Charges for reassembling the motor with bed and pump coupling, alignment checking connecting power supply cable, including required bolt and Nuts and testing trial running etc.,
60HP-HSC_Pump
Charges for removing the motor from bed assembly after dismantling of Coupling arrangements and removing the pump assembly and including the provision of dummy flange arrangements by using contractor tools and materials.
Transportation charges for conveying the Pump assembly from the Pumping Station to work shop including loading and unloading charges.
Labour Charges for removing the impeller by using hydralic system, DE and NDE Bearings
Labour Charges for reconditioning the worn out shaft including welding the shaft to suit the impeller and suit the driven end and non driven end bearing seating, knurling, bend checking and etc.,
Supply, delivery and fixing of Shaft sleeves in Gun metal including machining charges and making key ways after deducting the scrap materials
Balancing of Rotor with impeller both dyanamically and Hydralically by using required dyanamic balancing machine
Supply, delivery and fixing of Gunmetal seal rings for impeller neck including machining charges after deducting the scrap materials
Supply and delivery of Driven End and Non Driven End bearings
Labour Charges fixing the DE and NDE bearings correctly and neatly with required lubrications by contractors tools & Materials
Transportation charges for conveying the Pump assembly from work shop to Pumping Station.
Charges for reassembling the Pump with Motor by using pulley and alignment checking, including required bolt and Nuts and testing trial running etc.,
SUPPLY AND DELIVERY OF SERVICE CONNECTION ACCESSORIES L.T. 1100V PVC ALUMINIUM ARMOURED UNDER GROUND CABLE WITH ISI MARK
25 Sq.mm 3.5 Core
35 Sq.mm 3.5 Core
70 Sq.mm 3.5 Core
95 Sq.mm 3.5 Core
120 Sq.mm 3.5 Core
SUPPLY AND DELIVERY OF L.T. CABLES following size sq mm 3 CORE 1.1 KV GRADE ARMOURED ALUMINIUM CONDUCTOR CROSS LINKED POLY ETHYLENE INSULATED PVC SHEATHED CABLES CONFORMING TO IS 7098 (PART I)/1988 WITH ISI MARKING
50 Sq.mm 3 Core
70 Sq.mm 3Core
SUPPLY AND DELIVERY OF PVC INSULATED AND SHEATHED following sq mm 3 CORE FLAT TYPE COPPER CABLE CONFORMING TO IS 694/1989
SUPPLY AND DELIVERY OF 150mm dia Pressure Gauge and Vaccum guage including all accessories as per specification (For Suction and Delivery to be mounted on wall on Teak Wood Board)
Supply, delivey and fixing of MOULDED CASE CIRCUIT BREAKER (MCCB) WITH THERMO MAGNETIC RELEASE - 4 Pole
Range - 63/100A
Range - 125A
Range - 160A
Range - 250A
Supply, delivey and fixing of RATE FOR MIXED DI-ELECTRIC CAPACITOR WITH TNEB TEST CERTIFICATE WITH ACCESSORIES INCLUDING BANKING CONFORMIING TO IS 2834.
Supply, delivey and fixing of Electro magnetic contactors of suitable capacity in AC Three Phase rating, conforming to IS/IEC 60947-4-1.
Supply, delivey and fixing of Overload Relays: Directly operated Bimetallic Thermal overload relay which operates in case of overload and also in case of under voltage with manual and auto reset mode.
Supply, delivey and fixing of Preventer – Single Phasing - Electric Motor protection device against single phasing. The device should protect the motor against single phasing, reverse phasing and unbalance supply. The device should be suitable for any auxillary device and have provisions for mounting in panel boards. Operate without need of any auxiliary supply.
Electric Motor protection device against dry running. The device should protect the motor against Dry running. The device should be suitable for any auxillary device and have provisions for mounting in panel boards. Operate without need of any auxiliary supply
Supply, delivey and fixing of FUSE UNITS (ANCHOR /EQUIVALENT)
63 Amps Porcelain fuse unit (500 V)
100 Amps Porcelain fuse unit (500 V)
200 Amps Porcelain fuse unit (500 V)
Supply, delivey and fixing of CHANGE OVER SWITCHES
100 Amps three phase 500 V 4 pole Change over switch
200 Amps three phase 500 V 4 pole Change over switch
250 Amps three phase 500 V 4 pole Change over switch
Supply, delivey and fixing of PVC INSULATED SINGLE CORE MULTI STRAND FIRE RETARDANT FLEXIBLE COPPER CABLE WITH ISI MARK CONFORMING TO IS
Supply, delivey and fixing of HRC - FUSES - HIGHER END
HRC - 16 Amps
HRC - 32 Amps
HRC - 63 Amps
HRC - 125 Amps
HRC - 200 Amps
HRC - 250 Amps
Supply and delivery of the following Electrical Works :consumable items at the site of work to carryout the general maintenace works
Voltmeter Digital - Three Phase Class 1-AC
Ammeter Digital - Three Phase Class 1-1A
20W 4 Feet LED Fitting with LED (Higher end)
LED OUTDOOR FITTINGS (LIGHT EMITTING DIODE) LOWER END 25W LED Street Light Fitting with LED
Supply and delivery of the following consumable items for Pump Set repairs at the site of work to carryout the general maintenace works
50mm GM Gate valve
65mm GM Gate valve
80mm GM Gate valve
R I Sheet
Bolts and Nuts - All sizes
50mm GI Pipe
65mm GI pipe
80mm GI Pipe
100mm GI pipe
Supply, delivery and fixing of DI D/F Gate sluice/scour valves (soft seated) resilient seated soft sealing Gate Valves(Sluice Valves) with body Bonnet of Ductile cast iron of Grade GGG 40 or equivalent grade, Wedge fully rubber lined with EPDM replaceable spindle nut without gland packing and with 3 O- Ring protection on the shaft and seals of NBR and the valves should be of Vacuum tight and 100% leak proof with face to face dimensions as per BS 5163- 89/ISI 14846-2000/DIN 3202 F4. All the valves should be with electrostatic powder coating both inside and out side with pocket less straight through body passage. All the valves are to be compatible for buried application with pressure rating PN 10/16 and with 5 years warranty.
150mm DI Gate Valve
200mm DI Gate Valve
Supply, delivey and fixing of C.I. DOUBLE AIR VALVE AS PER ISI 14845/2000 AND WITH 5 YEARS WARRANTY
50mm CI Air Valve
80mm CI Air Valve
SUMP CLEANING
Cleaning of all storage points like sumps, elevated reservoirs of various capacities available in this scheme at a frequency of once in two months including scrapping the inner side of compartment completely, scouring / dewatering / desilting using required machineries, materials, labour and all other incidental charges, application of bleaching powder/ solution etc complete.
For 75001 to 100000 lit cap sump
For 100001 to 125000 lit cap sump
For 125001 to 150000 lit cap sump
For 175001 to 200000 lit cap sump
Desilting light or sandysoil or silt from collection well below water level including the charges for special tools & plants and air compressor etc complete
Bleaching powder of 34% concentration as per standard specification.
COMBINED WATER SUPPLY SCHEME TO DESUR-THELLAR AND 87 OTHER HABITATIONS IN ANAKKAVUR, PERNAMALLUR AND THELLAR UNION IN TIRUVANNAMALAI DISTRICT
Operation and Maintenance of the Electro Mechanical installations, equipments, components, pipelines valves and appurtenances, water retaining structures including protecton of all schemee components from damages/ theft undertaking legal actions for such untoward incidents, preventive maintenance, disinfection and deliverance of water as per quality standards and supply of earmarked quantity of water to the beneficiaries as per Annexure .........., carrying out the O&M as per standard operating procedures, Acts and rules in force and as directed by TWAD Board Oficers and excluding cost towards attending leak, burst repair and replacement works to electro mechanical installations consumables for disinfection of water, cleaning of all water retaining structure, electricity .
Repair & Renewals and Leak & Bursts :
Attending Leaks in the PVC pipelines of this CWSS for the following items, as per the standard procedure including earthwork excavation, dewatering, removing, relaying, jointing, civil works, cost of materials and all other incidental charges, etc complete within the stipulated time limit as directed by the TWAD Board officers.
PVC 4 KSC Pipes_Minor Leak
63mm OD PVC 4 KSC pipes_Minor Leak
75mm OD PVC 4 KSC pipes_Minor Leak
90mm OD PVC 4 KSC pipes_Minor Leak
110mm OD PVC 4 KSC pipes_Minor Leak
PVC 4 KSC Pipes_Major Leak
63mm OD PVC 4 KSC pipes_Major Leak
75mm OD PVC 4 KSC pipes_Major Leak
90mm OD PVC 4 KSC pipes_Major Leak
110mm OD PVC 4 KSC pipes_Major Leak
Attending Leaks/Bursts in the HDPE pipelines of this CWSS for the following items, as per the standard procedure including earthwork excavation, dewatering, removing, relaying, jointing by Electro fusion/butt Joint, civil works, cost of materials and all other incidental charges, etc complete within the stipulated time limit as directed by the TWAD Board officers.
HDPE PN 6 Pipes_Minor Leaks
63mm HDPE PN 6 pipes_Minor Leak
75mm HDPE PN 6 pipes_Minor Leak
125mm HDPE PN 6 pipes_Minor Leak
160mm HDPE PN 6 pipes_Minor Leak
HDPE PN 6 Pipes_Major Leaks
63mm HDPE PN 6 pipes_Major Leak
75mm HDPE PN 6 pipes_Major Leak
125mm HDPE PN 6 pipes_Major Leak
160mm HDPE PN 6 pipes_Major Leak
Attending leaks and bursts in GI pipes of various sizes including Supply and delivery of following G I PIPES (MEDIUM) AS PER IS 1239/PART I/2004 and Lowering GI pipes and specials in the trenches and laying to proper grade and alignment, jointing with GI Specials and as directed by the TWAD Officers
50mm GI Pipe leak above GL
65mm GI Pipe leak above GL
80mm GI Pipe leak above GL
100mm GI Pipe leak above GL
125mm GI Pipe leak above GL
Attending joint (Collar) Leaks in the AC pipelines of this CWSS for the following items, as per the standard procedure including earthwork excavation, dewatering, removing, relaying, jointing, civil works, cost of materials and all incidental charges, etc complete within the stipulated time limit as specified in Clause 2.6.4 of General conditions of Contract
AC Pipe_Collar Leak
150mm AC_Collar Leak
AC Pipe_Minor Leak centre crack
150mm AC Pipe_MS Cut Barrel
Attending Leaks/Bursts in the DI pipelines of this CWSS for the following items, as per the standard procedure including earthwork excavation, dewatering, removing, relaying, jointing, civil works, cost of materials and all incidental charges, etc complete within the stipulated time limit as specified in Clause 2.6.4 of General conditions of Contract
DI Pipes_Minor Leak
100mm DI pipes - Minor leak
150mm DI pipes - Minor leak
200mm DI pipes - Minor leak
250mm DI pipes - Minor leak
300mm DI pipes - Minor leak
DI Pipes_Major Leak
100mm DI pipes - Major leak
150mm DI pipes - Major leak
200mm DI pipes - Major leak
Labour for cutting open B.T. Roads (or) Maccadam road for laying water mains - 15 cm thick (SOR VOL II P.195)
For all size Pumping mains
Road Restoration with PCC 1:2:4 using 20 mm HBGS for the Concrete Road cut Portion after the pipes are laid, joined and tested complete and as directed by TWAD Board Officers - 15 cm thick
For all size Pumping mains
MATERIALS
Supply and delivery of following sizes of HDPE PIPES - PE 100 AS PER IS 4984/2016 (Pre-Compounded Resin) inclusive of transportation charges to stockyard excluding unloading anywhere in Tamilnadu etc, complete and as directed by the TWAD Board officers. (SOR VOL II P.14)
160mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
75mm HDPE PN 6
63mm HDPE PN 6
CIVIL WORKS
Earth work excavation and depositing on bank with initial lead of 10 m and initial lift of 2m in narrow trenches for laying of pipes for water supply in the following types of soil
Hard stiff clay, stiff black cotton, hard red earth, shales, murrum gravel, stoney earth and earth mixed with small size boulders and hard gravelly soil. (SOR VOL II P.192)
160mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
75mm HDPE PN 6
63mm HDPE PN 6
Lowering HDPE pipes and specials to trench and laying to proper grade and alignment and as directed by the TWAD Officers. (SOR VOL II P.171)
160mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
75mm HDPE PN 6
63mm HDPE PN 6
Jointing HDPE Pipes and Specials by butt fusion welding / electro fusion welding joints using fusion equipment as per ISO 21307-2011 and as per IS 7634 (part-2) : 2012 including cost of hire charges for butt fusion equipment power supply arrangements etc., complete as per directed by TWAD Board Officers. (SOR VOL II P.184)
160mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
75mm HDPE PN 6
63mm HDPE PN 6
Refiling with excavated sand or other loose soil complying with standerd specification in layers of 15 cm thick well rammed and consolidated after pipes and specials are laid and tested. (SOR VOL II P.192)
160mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
75mm HDPE PN 6
63mm HDPE PN 6
Pumpsets
Carrying out the following repair works occuring during the maintenance period in the Electrical, Mechanical and Elctro-mechanical items to bring back the scheme / components into normal running conditition as per standard specification including all labour charges, cost of materials and all incidental charges within the stipulated time limit etc., complete as specified in Clause 2.8 of General conditions of Contract Part II etc as directed by TWAD Board officers
Attending the Rewinding, Repair and Renewal works in various capacity Open Well Submersible Pumpsets
Removing the Submersible pumpset by using tripod set after disconnecting the power supply cable and delivery pipe line fittings
3HP -OWS
5HP -OWS
7.5HP -OWS
10HP -OWS
15HP -OWS
30HP -OWS
Transporting the pumpset from Pump House to work shop.
3HP -OWS
5HP -OWS
7.5HP -OWS
10HP -OWS
15HP -OWS
30HP -OWS
Rewinding the submersible motor using best quality winding wire including cost of wire, Sleeve, other insulating and fibre class materials after deducting the cost of old materials.
3HP -OWS
5HP -OWS
7.5HP -OWS
10HP -OWS
15HP -OWS
30HP -OWS
Reconditioning the worn-out shaft and fittings, impeller and Gun Metal/ SS Bushes including cost of lath work & labour charges etc.,
3HP -OWS
5HP -OWS
7.5HP -OWS
10HP -OWS
15HP -OWS
30HP -OWS
Replacement of carbon type thrust bearing and pumpside Gun Metal Bush including cost of labour charges after deducting the cost of old material
3HP -OWS
5HP -OWS
7.5HP -OWS
10HP -OWS
15HP -OWS
30HP -OWS
Transporting charges for Submersible pumpset from work shop to Pump House after attending repair works.
3HP -OWS
5HP -OWS
7.5HP -OWS
10HP -OWS
15HP -OWS
30HP -OWS
Re-erection of pumpset in the Sump / Well by using tripod set and required Rubber washer and Bolt & Nuts and connecting the power supply cable and delivery pipeline arrangements testing to trial pumping.
3HP -OWS
5HP -OWS
7.5HP -OWS
10HP -OWS
15HP -OWS
30HP -OWS
75HP -HSC_Motor
Charges for removing the motor from bed after disconnection of power supply cable, Earthing line and Coupling arrangements by using contractor tools and materials.
Transportation charges for conveying the motor from the Booster Station to Our work shop including loading and unloading charges.
Labour Charges for removing the two end side cover with fan arrangements and the damaged driven end and non driven end bearings.
Charges for removing the burnt wires from the rotor assembly and cleaning and checking the slots of rotor and labour charges for rewinding of Centrifugal Squirrel Cage Induction Motor after deducting the cost of old materials and including suppy and delivery of Class ‘F’ Insulation Super enameled Copper wire, required for rewinding and Fiber Glass wire, Fiber Glass Sleeves, Class ‘F’ insulation paper, Copper Socket and FG thread required for rewinding of Squirrel Cage Induction Motor
Labour Charges for reconditioning the worn out shaft for driven end and non driven end bearing seating, knurling, bend checking, and etc.,
Supply and delivery of Driven End and Non Driven End bearings suitable for the required Induction Motor
Labour Charges fixing the DE and NDE bearings correctly and neatly with required lubrications by contractors tools & Materials
Transportation charges for conveying the motor from work shop to Pumping Station
Charges for reassembling the motor with bed and pump coupling, alignment checking connecting power supply cable, including required bolt and Nuts and testing trial running etc.,
Attending the Repair and Reconditioning works of various capacities of Horizontal Split Casing Pumpsets
75HP -HSC_Pump
Charges for removing the motor from bed assembly after dismantling of Coupling arrangements and removing the pump assembly and including the provision of dummy flange arrangements by using contractor tools and materials.
Transportation charges for conveying the Pump assembly from the Pumping Station to work shop including loading and unloading charges.
Labour Charges for removing the impeller by using hydralic system, DE and NDE Bearings
Labour Charges for reconditioning the worn out shaft including welding the shaft to suit the impeller and suit the driven end and non driven end bearing seating, knurling, bend checking and etc.,
Supply, delivery and fixing of Shaft sleeves in Gun metal including machining charges and making key ways after deducting the scrap materials
Balancing of Rotor with impeller both dyanamically and Hydralically by using required dyanamic balancing machine
Supply, delivery and fixing of Gunmetal seal rings for impeller neck including machining charges after deducting the scrap materials
Supply and delivery of Driven End and Non Driven End bearings
Labour Charges fixing the DE and NDE bearings correctly and neatly with required lubrications by contractors tools & Materials
Transportation charges for conveying the Pump assembly from work shop to Pumping Station.
Charges for reassembling the Pump with Motor by using pulley and alignment checking, including required bolt and Nuts and testing trial running etc.,
SUPPLY AND DELIVERY OF SERVICE CONNECTION ACCESSORIES L.T. 1100V PVC ALUMINIUM ARMOURED UNDER GROUND CABLE WITH ISI MARK
70 Sq.mm 3.5 Core
95 Sq.mm 3.5 Core
120 Sq.mm 3.5 Core
SUPPLY AND DELIVERY OF L.T. CABLES following size sq mm 3 CORE 1.1 KV GRADE ARMOURED ALUMINIUM CONDUCTOR CROSS LINKED POLY ETHYLENE INSULATED PVC SHEATHED CABLES CONFORMING TO IS 7098 (PART I)/1988 WITH ISI MARKING
25 Sq.mm 3 Core
50 Sq.mm 3 Core
95 Sq.mm 3 Core
SUPPLY AND DELIVERY OF PVC INSULATED AND SHEATHED following sq mm 3 CORE FLAT TYPE COPPER CABLE CONFORMING TO IS 694/1989
SUPPLY AND DELIVERY OF 150mm dia Pressure Gauge and Vaccum guage including all accessories as per specification (For Suction and Delivery to be mounted on wall on Teak Wood Board)
Supply, delivey and fixing of MOULDED CASE CIRCUIT BREAKER (MCCB) WITH THERMO MAGNETIC RELEASE - 4 Pole
Range - 63/100A
Range - 125A
Range - 160A
Supply, delivey and fixing of RATE FOR MIXED DI-ELECTRIC CAPACITOR WITH TNEB TEST CERTIFICATE WITH ACCESSORIES INCLUDING BANKING CONFORMIING TO IS 2834.
Supply, delivey and fixing of Electro magnetic contactors of suitable capacity in AC Three Phase rating, conforming to IS/IEC 60947-4-1.
Supply, delivey and fixing of Overload Relays: Directly operated Bimetallic Thermal overload relay which operates in case of overload and also in case of under voltage with manual and auto reset mode.
Supply, delivey and fixing of Preventer – Single Phasing - Electric Motor protection device against single phasing. The device should protect the motor against single phasing, reverse phasing and unbalance supply. The device should be suitable for any auxillary device and have provisions for mounting in panel boards. Operate without need of any auxiliary supply.
Electric Motor protection device against dry running. The device should protect the motor against Dry running. The device should be suitable for any auxillary device and have provisions for mounting in panel boards. Operate without need of any auxiliary supply
63 Amps Porcelain fuse unit (500 V)
100 Amps Porcelain fuse unit (500 V)
200 Amps Porcelain fuse unit (500 V)
100 Amps three phase 500 V 4 pole Change over switch
200 Amps three phase 500 V 4 pole Change over switch
250 Amps three phase 500 V 4 pole Change over switch
Supply, delivey and fixing of HRC - FUSES - HIGHER END
HRC - 16 Amps
HRC - 32 Amps
HRC - 63 Amps
HRC - 125 Amps
HRC - 200 Amps
HRC - 250 Amps
Supply and delivery of the following Electrical Works :consumable items at the site of work to carryout the general maintenace works
Voltmeter Digital - Three Phase Class 1-AC
Ammeter Digital - Three Phase Class 1-1A
20W 4 Feet LED Fitting with LED (Higher end)
LED OUTDOOR FITTINGS (LIGHT EMITTING DIODE) LOWER END 25W LED Street Light Fitting with LED
Supply and delivery of the following consumable items for Pump Set repairs at the site of work to carryout the general maintenace works
80mm GM Gate valve
100mm GM Gate valve
80mm GI Pipe
100mm GI pipe
Supply, delivery and fixing of DI D/F Gate sluice/scour valves (soft seated) resilient seated soft sealing Gate Valves(Sluice Valves) with body Bonnet of Ductile cast iron of Grade GGG 40 or equivalent grade, Wedge fully rubber lined with EPDM replaceable spindle nut without gland packing and with 3 O- Ring protection on the shaft and seals of NBR and the valves should be of Vacuum tight and 100% leak proof with face to face dimensions as per BS 5163- 89/ISI 14846-2000/DIN 3202 F4. All the valves should be with electrostatic powder coating both inside and out side with pocket less straight through body passage. All the valves are to be compatible for buried application with pressure rating PN 10/16 and with 5 years warranty.
200mm DI Gate Valve
Manufacture, Supply and Delivery of Tamper proof DI single chamber double orifice triple function (ventilating, admiting & ventilating during operation) air release valve with pressure rating PN 10/16 with body and cover made of Ductile Iron of Grade GGG 40 or GGG 50, conforming to IS 1865 with Food Grade Epoxy Powder coating (EP-P) inside and for outside of colour blue RAL 5005. All internal parts such as float, shell etc., cover bolts, made of Austenitic alloy steel of SS AISI 304/316. The float shall be made of Polytetrafluroethylene/ Austenitic alloy steel of AISI 304/316. Gaskets and seals of EPDM / Neoprene rubber for TWAD Board works anywhere in Tamil Nadu and with 5 years warranty
Supply, delivey and fixing of C.I. DOUBLE AIR VALVE AS PER ISI 14845/2000 AND WITH 5 YEARS WARRANTY
50mm CI Air Valve
SUMP CLEANING
Cleaning of all storage points like sumps, elevated reservoirs of various capacities available in this scheme at a frequency of once in two months including scrapping the inner side of compartment completely, scouring / dewatering / desilting using required machineries, materials, labour and all other incidental charges, application of bleaching powder/ solution etc complete.
For 45001 to 60000 lit cap sump
For 175001 to 200000 lit cap sump
For 200001 to 300000 lit cap sump
Desilting light or sandysoil or silt from collection well below water level including the charges for special tools & plants and air compressor etc complete
Bleaching powder of 34% concentration as per standard specification.
COMBINED WATER SUPPLY SCHEME TO KEELKODUNGALORE AND 76 OTHER HABITATIONS IN VANDAVASI UNION OF TIRUVANNAMALAI DISTRICT
Operation and Maintenance of the Electro Mechanical installations, equipments, components, pipelines valves and appurtenances, water retaining structures including protecton of all schemee components from damages/ theft undertaking legal actions for such untoward incidents, preventive maintenance, disinfection and deliverance of water as per quality standards and supply of earmarked quantity of water to the beneficiaries as per Annexure .........., carrying out the O&M as per standard operating procedures, Acts and rules in force and as directed by TWAD Board Oficers and excluding cost towards attending leak, burst repair and replacement works to electro mechanical installations consumables for disinfection of water, cleaning of all water retaining structure, electricity .
Repair & Renewals and Leak & Bursts :
Attending Leaks in the PVC pipelines of this CWSS for the following items, as per the standard procedure including earthwork excavation, dewatering, removing, relaying, jointing, civil works, cost of materials and all other incidental charges, etc complete within the stipulated time limit as directed by the TWAD Board officers.
PVC 4 KSC Pipes_Minor Leak
63mm OD PVC 4 KSC pipes_Minor Leak
75mm OD PVC 4 KSC pipes_Minor Leak
90mm OD PVC 4 KSC pipes_Minor Leak
110mm OD PVC 4 KSC pipes_Minor Leak
140mm OD PVC 4 KSC pipes_Minor Leak
160mm OD PVC 4 KSC pipes_Minor Leak
PVC 4 KSC Pipes_Major Leak
63mm OD PVC 4 KSC pipes_Major Leak
75mm OD PVC 4 KSC pipes_Major Leak
90mm OD PVC 4 KSC pipes_Major Leak
110mm OD PVC 4 KSC pipes_Major Leak
140mm OD PVC 4 KSC pipes_Major Leak
160mm OD PVC 4 KSC pipes_Major Leak
Attending Leaks/Bursts in the HDPE pipelines of this CWSS for the following items, as per the standard procedure including earthwork excavation, dewatering, removing, relaying, jointing by Electro fusion/butt Joint, civil works, cost of materials and all other incidental charges, etc complete within the stipulated time limit as directed by the TWAD Board officers.
HDPE PN 6 Pipes_Minor Leaks
63mm HDPE PN 6 pipes_Minor Leak
75mm HDPE PN 6 pipes_Minor Leak
90mm HDPE PN 6 pipes_Minor Leak
110mm HDPE PN 6 pipes_Minor Leak
140mm HDPE PN 6 pipes_Minor Leak
200mm HDPE PN 6 pipes_Minor Leak
HDPE PN 6 Pipes_Major Leaks
63mm HDPE PN 6 pipes_Major Leak
75mm HDPE PN 6 pipes_Major Leak
90mm HDPE PN 6 pipes_Major Leak
110mm HDPE PN 6 pipes_Major Leak
140mm HDPE PN 6 pipes_Major Leak
200mm HDPE PN 6 pipes_Major Leak
Attending leaks and bursts in GI pipes of various sizes including Supply and delivery of following G I PIPES (MEDIUM) AS PER IS 1239/PART I/2004 and Lowering GI pipes and specials in the trenches and laying to proper grade and alignment, jointing with GI Specials and as directed by the TWAD Officers
80mm GI Pipe leak above GL
100mm GI Pipe leak above GL
125mm GI Pipe leak above GL
150mm GI Pipe leak above GL
Attending joint (Collar) Leaks in the AC pipelines of this CWSS for the following items, as per the standard procedure including earthwork excavation, dewatering, removing, relaying, jointing, civil works, cost of materials and all incidental charges, etc complete within the stipulated time limit as specified in Clause 2.6.4 of General conditions of Contract
AC Pipe_Collar Leak
200mm AC_Collar Leak
AC Pipe_Minor Leak centre crack
200mm AC Pipe_MS Cut Barrel
Labour for cutting open B.T. Roads (or) Maccadam road for laying water mains - 15 cm thick (SOR VOL II P.195)
For all size Pumping mains
Road Restoration with PCC 1:2:4 using 20 mm HBGS for the Concrete Road cut Portion after the pipes are laid, joined and tested complete and as directed by TWAD Board Officers - 15 cm thick
For all size Pumping mains
MATERIALS
Supply and delivery of following sizes of HDPE PIPES - PE 100 AS PER IS 4984/2016 (Pre-Compounded Resin) inclusive of transportation charges to stockyard excluding unloading anywhere in Tamilnadu etc, complete and as directed by the TWAD Board officers. (SOR VOL II P.14)
200mm HDPE PN 6
160mm HDPE PN 6
140mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
75mm HDPE PN 6
63mm HDPE PN 6
CIVIL WORKS
Earth work excavation and depositing on bank with initial lead of 10 m and initial lift of 2m in narrow trenches for laying of pipes for water supply in the following types of soil
Hard stiff clay, stiff black cotton, hard red earth, shales, murrum gravel, stoney earth and earth mixed with small size boulders and hard gravelly soil. (SOR VOL II P.192)
200mm HDPE PN 6
160mm HDPE PN 6
140mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
75mm HDPE PN 6
63mm HDPE PN 6
Lowering HDPE pipes and specials to trench and laying to proper grade and alignment and as directed by the TWAD Officers. (SOR VOL II P.171)
200mm HDPE PN 6
160mm HDPE PN 6
140mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
75mm HDPE PN 6
63mm HDPE PN 6
Jointing HDPE Pipes and Specials by butt fusion welding / electro fusion welding joints using fusion equipment as per ISO 21307-2011 and as per IS 7634 (part-2) : 2012 including cost of hire charges for butt fusion equipment power supply arrangements etc., complete as per directed by TWAD Board Officers. (SOR VOL II P.184)
200mm HDPE PN 6
160mm HDPE PN 6
140mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
75mm HDPE PN 6
63mm HDPE PN 6
Refiling with excavated sand or other loose soil complying with standerd specification in layers of 15 cm thick well rammed and consolidated after pipes and specials are laid and tested. (SOR VOL II P.192)
200mm HDPE PN 6
160mm HDPE PN 6
140mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
75mm HDPE PN 6
63mm HDPE PN 6
Pumpsets
Carrying out the following repair works occuring during the maintenance period in the Electrical, Mechanical and Elctro-mechanical items to bring back the scheme / components into normal running conditition as per standard specification including all labour charges, cost of materials and all incidental charges within the stipulated time limit etc., complete as specified in Clause 2.8 of General conditions of Contract Part II etc as directed by TWAD Board officers
Attending the Rewinding, Repair and Renewal works in various capacity Open Well Submersible Pumpsets
Removing the Submersible pumpset by using tripod set after disconnecting the power supply cable and delivery pipe line fittings
2HP -OWS
3HP -OWS
5HP -OWS
10HP -OWS
12.50HP -OWS
Transporting the pumpset from Pump House to work shop.
2HP -OWS
3HP -OWS
5HP -OWS
10HP -OWS
12.50HP -OWS
Rewinding the submersible motor using best quality winding wire including cost of wire, Sleeve, other insulating and fibre class materials after deducting the cost of old materials.
2HP -OWS
3HP -OWS
5HP -OWS
10HP -OWS
12.50HP -OWS
Reconditioning the worn-out shaft and fittings, impeller and Gun Metal/ SS Bushes including cost of lath work & labour charges etc.,
2HP -OWS
3HP -OWS
5HP -OWS
10HP -OWS
12.50HP -OWS
Replacement of carbon type thrust bearing and pumpside Gun Metal Bush including cost of labour charges after deducting the cost of old material
2HP -OWS
3HP -OWS
5HP -OWS
10HP -OWS
12.50HP -OWS
Transporting charges for Submersible pumpset from work shop to Pump House after attending repair works.
2HP -OWS
3HP -OWS
5HP -OWS
10HP -OWS
12.50HP -OWS
Re-erection of pumpset in the Sump / Well by using tripod set and required Rubber washer and Bolt & Nuts and connecting the power supply cable and delivery pipeline arrangements testing to trial pumping.
2HP -OWS
3HP -OWS
5HP -OWS
10HP -OWS
12.50HP -OWS
SUPPLY AND DELIVERY OF SERVICE CONNECTION ACCESSORIES L.T. 1100V PVC ALUMINIUM ARMOURED UNDER GROUND CABLE WITH ISI MARK
25 Sq.mm 3.5 Core
35 Sq.mm 3.5 Core
50 Sq.mm 3.5 Core
SUPPLY AND DELIVERY OF L.T. CABLES following size sq mm 3 CORE 1.1 KV GRADE ARMOURED ALUMINIUM CONDUCTOR CROSS LINKED POLY ETHYLENE INSULATED PVC SHEATHED CABLES CONFORMING TO IS 7098 (PART I)/1988 WITH ISI MARKING
50 Sq.mm 3 Core
70 Sq.mm 3Core
SUPPLY AND DELIVERY OF PVC INSULATED AND SHEATHED following sq mm 3 CORE FLAT TYPE COPPER CABLE CONFORMING TO IS 694/1989
SUPPLY AND DELIVERY OF 150mm dia Pressure Gauge and Vaccum guage including all accessories as per specification (For Suction and Delivery to be mounted on wall on Teak Wood Board)
Supply, delivey and fixing of MOULDED CASE CIRCUIT BREAKER (MCCB) WITH THERMO MAGNETIC RELEASE - 4 Pole
Range - 63/100A
Supply, delivey and fixing of RATE FOR MIXED DI-ELECTRIC CAPACITOR WITH TNEB TEST CERTIFICATE WITH ACCESSORIES INCLUDING BANKING CONFORMIING TO IS 2834.
Supply, delivey and fixing of Electro magnetic contactors of suitable capacity in AC Three Phase rating, conforming to IS/IEC 60947-4-1.
Supply, delivey and fixing of Overload Relays: Directly operated Bimetallic Thermal overload relay which operates in case of overload and also in case of under voltage with manual and auto reset mode.
Supply, delivey and fixing of Preventer – Single Phasing - Electric Motor protection device against single phasing. The device should protect the motor against single phasing, reverse phasing and unbalance supply. The device should be suitable for any auxillary device and have provisions for mounting in panel boards. Operate without need of any auxiliary supply.
Electric Motor protection device against dry running. The device should protect the motor against Dry running. The device should be suitable for any auxillary device and have provisions for mounting in panel boards. Operate without need of any auxiliary supply
Supply, delivey and fixing of FUSE UNITS (ANCHOR /EQUIVALENT)
63 Amps Porcelain fuse unit (500 V)
100 Amps Porcelain fuse unit (500 V)
200 Amps Porcelain fuse unit (500 V)
Supply, delivey and fixing of CHANGE OVER SWITCHES
32 Amps three phase 500 V 4 pole Change over switch
63 Amps three phase 500 V 4 pole Change over switch
100 Amps three phase 500 V 4 pole Change over switch
Supply, delivey and fixing of PVC INSULATED SINGLE CORE MULTI STRAND FIRE RETARDANT FLEXIBLE COPPER CABLE WITH ISI MARK CONFORMING TO IS
Supply, delivey and fixing of HRC - FUSES - HIGHER END
HRC - 16 Amps
HRC - 32 Amps
HRC - 63 Amps
Supply and delivery of the following Electrical Works :consumable items at the site of work to carryout the general maintenace works
Voltmeter Digital - Three Phase Class 1-AC
Ammeter Digital - Three Phase Class 1-1A
20W 4 Feet LED Fitting with LED (Higher end)
LED OUTDOOR FITTINGS (LIGHT EMITTING DIODE) LOWER END 25W LED Street Light Fitting with LED
Supply and delivery of the following consumable items for Pump Set repairs at the site of work to carryout the general maintenace works
50mm GM Gate valve
80mm GM Gate valve
R I Sheet
Bolts and Nuts - All sizes
50mm GI Pipe
80mm GI Pipe
100mm GI pipe
Supply, delivery and fixing of DI D/F Gate sluice/scour valves (soft seated) resilient seated soft sealing Gate Valves(Sluice Valves) with body Bonnet of Ductile cast iron of Grade GGG 40 or equivalent grade, Wedge fully rubber lined with EPDM replaceable spindle nut without gland packing and with 3 O- Ring protection on the shaft and seals of NBR and the valves should be of Vacuum tight and 100% leak proof with face to face dimensions as per BS 5163- 89/ISI 14846-2000/DIN 3202 F4. All the valves should be with electrostatic powder coating both inside and out side with pocket less straight through body passage. All the valves are to be compatible for buried application with pressure rating PN 10/16 and with 5 years warranty.
150mm DI Gate Valve
Supply, delivey and fixing of C.I. DOUBLE AIR VALVE AS PER ISI 14845/2000 AND WITH 5 YEARS WARRANTY
50mm CI Air Valve
SUMP CLEANING
Cleaning of all storage points like sumps, elevated reservoirs of various capacities available in this scheme at a frequency of once in two months including scrapping the inner side of compartment completely, scouring / dewatering / desilting using required machineries, materials, labour and all other incidental charges, application of bleaching powder/ solution etc complete.
For 45001 to 60000 lit cap sump
For 100001 to 125000 lit cap sump
For 125001 to 150000 lit cap sump
For 150001 to 175000 lit cap sump
Desilting light or sandysoil or silt from collection well below water level including the charges for special tools & plants and air compressor etc complete
Bleaching powder of 34% concentration as per standard specification.
COMBINED WATER SUPPLY SCHEME TO ATHI AND 37 OTHER HABITATIONS IN ANAKKAVUR UNION OF TIRUVANNAMALAI DISTRICT
Operation and Maintenance of the Electro Mechanical installations, equipments, components, pipelines valves and appurtenances, water retaining structures including protecton of all schemee components from damages/ theft undertaking legal actions for such untoward incidents, preventive maintenance, disinfection and deliverance of water as per quality standards and supply of earmarked quantity of water to the beneficiaries as per Annexure .........., carrying out the O&M as per standard operating procedures, Acts and rules in force and as directed by TWAD Board Oficers and excluding cost towards attending leak, burst repair and replacement works to electro mechanical installations consumables for disinfection of water, cleaning of all water retaining structure, electricity .
Repair & Renewals and Leak & Bursts :
Attending Leaks in the PVC pipelines of this CWSS for the following items, as per the standard procedure including earthwork excavation, dewatering, removing, relaying, jointing, civil works, cost of materials and all other incidental charges, etc complete within the stipulated time limit as directed by the TWAD Board officers.
PVC 4 KSC Pipes_Minor Leak
63mm OD PVC 4 KSC pipes_Minor Leak
90mm OD PVC 4 KSC pipes_Minor Leak
110mm OD PVC 4 KSC pipes_Minor Leak
140mm OD PVC 4 KSC pipes_Minor Leak
PVC 4 KSC Pipes_Major Leak
63mm OD PVC 4 KSC pipes_Major Leak
90mm OD PVC 4 KSC pipes_Major Leak
110mm OD PVC 4 KSC pipes_Major Leak
140mm OD PVC 4 KSC pipes_Major Leak
Attending Leaks/Bursts in the HDPE pipelines of this CWSS for the following items, as per the standard procedure including earthwork excavation, dewatering, removing, relaying, jointing by Electro fusion/butt Joint, civil works, cost of materials and all other incidental charges, etc complete within the stipulated time limit as directed by the TWAD Board officers.
HDPE PN 6 Pipes_Minor Leaks
63mm HDPE PN 6 pipes_Minor Leak
90mm HDPE PN 6 pipes_Minor Leak
110mm HDPE PN 6 pipes_Minor Leak
125mm HDPE PN 6 pipes_Minor Leak
200mm HDPE PN 6 pipes_Minor Leak
HDPE PN 6 Pipes_Major Leaks
63mm HDPE PN 6 pipes_Major Leak
90mm HDPE PN 6 pipes_Major Leak
110mm HDPE PN 6 pipes_Major Leak
125mm HDPE PN 6 pipes_Major Leak
200mm HDPE PN 6 pipes_Major Leak
Attending leaks and bursts in GI pipes of various sizes including Supply and delivery of following G I PIPES (MEDIUM) AS PER IS 1239/PART I/2004 and Lowering GI pipes and specials in the trenches and laying to proper grade and alignment, jointing with GI Specials and as directed by the TWAD Officers
50mm GI Pipe leak above GL
65mm GI Pipe leak above GL
80mm GI Pipe leak above GL
Attending joint (Collar) Leaks in the AC pipelines of this CWSS for the following items, as per the standard procedure including earthwork excavation, dewatering, removing, relaying, jointing, civil works, cost of materials and all incidental charges, etc complete within the stipulated time limit as specified in Clause 2.6.4 of General conditions of Contract
AC Pipe_Collar Leak
150mm AC_Collar Leak
200mm AC_Collar Leak
AC Pipe_Minor Leak centre crack
150mm AC Pipe_MS Cut Barrel
200mm AC Pipe_MS Cut Barrel
Attending Leaks/Bursts in the DI pipelines of this CWSS for the following items, as per the standard procedure including earthwork excavation, dewatering, removing, relaying, jointing, civil works, cost of materials and all incidental charges, etc complete within the stipulated time limit as specified in Clause 2.6.4 of General conditions of Contract
DI Pipes_Minor Leak
150mm DI pipes - Minor leak
DI Pipes_Major Leak
150mm DI pipes - Major leak
Labour for cutting open B.T. Roads (or) Maccadam road for laying water mains - 15 cm thick (SOR VOL II P.195)
For all size Pumping mains
Road Restoration with PCC 1:2:4 using 20 mm HBGS for the Concrete Road cut Portion after the pipes are laid, joined and tested complete and as directed by TWAD Board Officers - 15 cm thick
For all size Pumping mains
MATERIALS
Supply and delivery of following sizes of HDPE PIPES - PE 100 AS PER IS 4984/2016 (Pre-Compounded Resin) inclusive of transportation charges to stockyard excluding unloading anywhere in Tamilnadu etc, complete and as directed by the TWAD Board officers. (SOR VOL II P.14)
200mm HDPE PN 6
160mm HDPE PN 6
140mm HDPE PN 6
125mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
63mm HDPE PN 6
CIVIL WORKS
Earth work excavation and depositing on bank with initial lead of 10 m and initial lift of 2m in narrow trenches for laying of pipes for water supply in the following types of soil
Hard stiff clay, stiff black cotton, hard red earth, shales, murrum gravel, stoney earth and earth mixed with small size boulders and hard gravelly soil. (SOR VOL II P.192)
200mm HDPE PN 6
160mm HDPE PN 6
140mm HDPE PN 6
125mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
63mm HDPE PN 6
Lowering HDPE pipes and specials to trench and laying to proper grade and alignment and as directed by the TWAD Officers. (SOR VOL II P.171)
200mm HDPE PN 6
160mm HDPE PN 6
140mm HDPE PN 6
125mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
63mm HDPE PN 6
Jointing HDPE Pipes and Specials by butt fusion welding / electro fusion welding joints using fusion equipment as per ISO 21307-2011 and as per IS 7634 (part-2) : 2012 including cost of hire charges for butt fusion equipment power supply arrangements etc., complete as per directed by TWAD Board Officers. (SOR VOL II P.184)
200mm HDPE PN 6
160mm HDPE PN 6
140mm HDPE PN 6
125mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
63mm HDPE PN 6
Refiling with excavated sand or other loose soil complying with standerd specification in layers of 15 cm thick well rammed and consolidated after pipes and specials are laid and tested. (SOR VOL II P.192)
200mm HDPE PN 6
160mm HDPE PN 6
140mm HDPE PN 6
125mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
63mm HDPE PN 6
Pumpsets
Carrying out the following repair works occuring during the maintenance period in the Electrical, Mechanical and Elctro-mechanical items to bring back the scheme / components into normal running conditition as per standard specification including all labour charges, cost of materials and all incidental charges within the stipulated time limit etc., complete as specified in Clause 2.8 of General conditions of Contract Part II etc as directed by TWAD Board officers
Attending the Rewinding, Repair and Renewal works in various capacity Open Well Submersible Pumpsets
Removing the Submersible pumpset by using tripod set after disconnecting the power supply cable and delivery pipe line fittings
3HP -OWS
7.5HP -OWS
10 HP -OWS
12.50HP -OWS
Transporting the pumpset from Pump House to work shop.
3HP -OWS
7.5HP -OWS
10 HP -OWS
12.50HP -OWS
Rewinding the submersible motor using best quality winding wire including cost of wire, Sleeve, other insulating and fibre class materials after deducting the cost of old materials.
3HP -OWS
7.5HP -OWS
10 HP -OWS
12.50HP -OWS
Reconditioning the worn-out shaft and fittings, impeller and Gun Metal/ SS Bushes including cost of lath work & labour charges etc.,
3HP -OWS
7.5HP -OWS
10 HP -OWS
12.50HP -OWS
Replacement of carbon type thrust bearing and pumpside Gun Metal Bush including cost of labour charges after deducting the cost of old material
3HP -OWS
7.5HP -OWS
10 HP -OWS
12.50HP -OWS
Transporting charges for Submersible pumpset from work shop to Pump House after attending repair works.
3HP -OWS
7.5HP -OWS
10 HP -OWS
12.50HP -OWS
Re-erection of pumpset in the Sump / Well by using tripod set and required Rubber washer and Bolt & Nuts and connecting the power supply cable and delivery pipeline arrangements testing to trial pumping.
3HP -OWS
7.5HP -OWS
10 HP -OWS
12.50HP -OWS
Attending the Rewinding, Repair and Renewal works in Monoblock Pumpset
2HP_Monoblock
Removing the Monblock Centrifugal Pumpset from the Bed assembly by using contractors tools and materials after disconnecting the power supply cable and delivery pipe line fittings with required dummy plate arrangements.
Transporting the pumpset from the Pumping Station to work shop.
Removing the Burnt winding materials from the stator slots and cleaning the stator and rotor assembly by using contractor tools and materials
Reconditioning the worn-out shaft and fittings, impeller and Rope gland bush including cost of lath work & labour charges etc.,
Rewinding the Monblock Centrifugal Motor using best quality winding wire including cost of wire, Sleeve, other insulating and fibre class materials after deducting the cost of old materials.
Replacement of driven end (No: XXXX) and Non driven end (No:XXXX) Bearings suitable for Monblock Centrifugal Motor including the cost of Bearing and labour charges after deducting the cost of old materials.
Replacement of cooling fan at motor end and Terminal Board for suitable for Monblock Centrifugal Pumpset and labour charges after deducting the cost of old materials.
Transporting charges for Monblock Centrifugal Pumpset from work shop to Pump House after attending repair works.
Re-erection of pumpset in the Sump / Well by using required Rubber washer and Bolt & Nuts and connecting the power supply cable and delivery pipe line arrangements, testing and trial pumping.
3HP_Monoblock
Removing the Monblock Centrifugal Pumpset from the Bed assembly by using contractors tools and materials after disconnecting the power supply cable and delivery pipe line fittings with required dummy plate arrangements.
Transporting the pumpset from the Pumping Station to work shop.
Removing the Burnt winding materials from the stator slots and cleaning the stator and rotor assembly by using contractor tools and materials
Reconditioning the worn-out shaft and fittings, impeller and Rope gland bush including cost of lath work & labour charges etc.,
Rewinding the Monblock Centrifugal Motor using best quality winding wire including cost of wire, Sleeve, other insulating and fibre class materials after deducting the cost of old materials.
Replacement of driven end (No: XXXX) and Non driven end (No:XXXX) Bearings suitable for Monblock Centrifugal Motor including the cost of Bearing and labour charges after deducting the cost of old materials.
Replacement of cooling fan at motor end and Terminal Board for suitable for Monblock Centrifugal Pumpset and labour charges after deducting the cost of old materials.
Transporting charges for Monblock Centrifugal Pumpset from work shop to Pump House after attending repair works.
Re-erection of pumpset in the Sump / Well by using required Rubber washer and Bolt & Nuts and connecting the power supply cable and delivery pipe line arrangements, testing and trial pumping.
12.5HP_Monoblock
Removing the Monblock Centrifugal Pumpset from the Bed assembly by using contractors tools and materials after disconnecting the power supply cable and delivery pipe line fittings with required dummy plate arrangements.
Transporting the pumpset from the Pumping Station to work shop.
Removing the Burnt winding materials from the stator slots and cleaning the stator and rotor assembly by using contractor tools and materials
Reconditioning the worn-out shaft and fittings, impeller and Rope gland bush including cost of lath work & labour charges etc.,
Rewinding the Monblock Centrifugal Motor using best quality winding wire including cost of wire, Sleeve, other insulating and fibre class materials after deducting the cost of old materials.
Replacement of driven end (No: XXXX) and Non driven end (No:XXXX) Bearings suitable for Monblock Centrifugal Motor including the cost of Bearing and labour charges after deducting the cost of old materials.
Replacement of cooling fan at motor end and Terminal Board for suitable for Monblock Centrifugal Pumpset and labour charges after deducting the cost of old materials.
Transporting charges for Monblock Centrifugal Pumpset from work shop to Pump House after attending repair works.
Re-erection of pumpset in the Sump / Well by using required Rubber washer and Bolt & Nuts and connecting the power supply cable and delivery pipe line arrangements, testing and trial pumping.
Attending the Rewinding and replacement of bearings of Induction Motor for Horizontal Split Casing Pumpsets
30HP -HSC_Motor
Charges for removing the motor from bed after disconnection of power supply cable, Earthing line and Coupling arrangements by using contractor tools and materials.
Transportation charges for conveying the motor from the Booster Station to Our work shop including loading and unloading charges.
Labour Charges for removing the two end side cover with fan arrangements and the damaged driven end and non driven end bearings.
Charges for removing the burnt wires from the rotor assembly and cleaning and checking the slots of rotor and labour charges for rewinding of Centrifugal Squirrel Cage Induction Motor after deducting the cost of old materials and including suppy and delivery of Class ‘F’ Insulation Super enameled Copper wire, required for rewinding and Fiber Glass wire, Fiber Glass Sleeves, Class ‘F’ insulation paper, Copper Socket and FG thread required for rewinding of Squirrel Cage Induction Motor
Labour Charges for reconditioning the worn out shaft for driven end and non driven end bearing seating, knurling, bend checking, and etc.,
Supply and delivery of Driven End and Non Driven End bearings suitable for the required Induction Motor
Labour Charges fixing the DE and NDE bearings correctly and neatly with required lubrications by contractors tools & Materials
Transportation charges for conveying the motor from work shop to Pumping Station
Charges for reassembling the motor with bed and pump coupling, alignment checking connecting power supply cable, including required bolt and Nuts and testing trial running etc.,
Attending the Repair and Reconditioning works of various capacities of Horizontal Split Casing Pumpsets
30HP -HSC_Pump
Charges for removing the motor from bed assembly after dismantling of Coupling arrangements and removing the pump assembly and including the provision of dummy flange arrangements by using contractor tools and materials.
Transportation charges for conveying the Pump assembly from the Pumping Station to work shop including loading and unloading charges.
Labour Charges for removing the impeller by using hydralic system, DE and NDE Bearings
Labour Charges for reconditioning the worn out shaft including welding the shaft to suit the impeller and suit the driven end and non driven end bearing seating, knurling, bend checking and etc.,
Supply, delivery and fixing of Shaft sleeves in Gun metal including machining charges and making key ways after deducting the scrap materials
Balancing of Rotor with impeller both dyanamically and Hydralically by using required dyanamic balancing machine
Supply, delivery and fixing of Gunmetal seal rings for impeller neck including machining charges after deducting the scrap materials
Supply and delivery of Driven End and Non Driven End bearings
Labour Charges fixing the DE and NDE bearings correctly and neatly with required lubrications by contractors tools & Materials
Transportation charges for conveying the Pump assembly from work shop to Pumping Station.
Charges for reassembling the Pump with Motor by using pulley and alignment checking, including required bolt and Nuts and testing trial running etc.,
SUPPLY AND DELIVERY OF SERVICE CONNECTION ACCESSORIES L.T. 1100V PVC ALUMINIUM ARMOURED UNDER GROUND CABLE WITH ISI MARK
25 Sq.mm 3.5 Core
35 Sq.mm 3.5 Core
50 Sq.mm 3.5 Core
SUPPLY AND DELIVERY OF L.T. CABLES following size sq mm 3 CORE 1.1 KV GRADE ARMOURED ALUMINIUM CONDUCTOR CROSS LINKED POLY ETHYLENE INSULATED PVC SHEATHED CABLES CONFORMING TO IS 7098 (PART I)/1988 WITH ISI MARKING
25 Sq.mm 3 Core
35 Sq.mm 3 Core
70 Sq.mm 3Core
SUPPLY AND DELIVERY OF PVC INSULATED AND SHEATHED following sq mm 3 CORE FLAT TYPE COPPER CABLE CONFORMING TO IS 694/1989
SUPPLY AND DELIVERY OF 150mm dia Pressure Gauge and Vaccum guage including all accessories as per specification (For Suction and Delivery to be mounted on wall on Teak Wood Board)
Supply, delivey and fixing of MOULDED CASE CIRCUIT BREAKER (MCCB) WITH THERMO MAGNETIC RELEASE - 4 Pole
Range - 63/100A
Supply, delivey and fixing of RATE FOR MIXED DI-ELECTRIC CAPACITOR WITH TNEB TEST CERTIFICATE WITH ACCESSORIES INCLUDING BANKING CONFORMIING TO IS 2834.
Supply, delivey and fixing of Electro magnetic contactors of suitable capacity in AC Three Phase rating, conforming to IS/IEC 60947-4-1.
Supply, delivey and fixing of Overload Relays: Directly operated Bimetallic Thermal overload relay which operates in case of overload and also in case of under voltage with manual and auto reset mode.
Supply, delivey and fixing of Preventer – Single Phasing - Electric Motor protection device against single phasing. The device should protect the motor against single phasing, reverse phasing and unbalance supply. The device should be suitable for any auxillary device and have provisions for mounting in panel boards. Operate without need of any auxiliary supply.
Electric Motor protection device against dry running. The device should protect the motor against Dry running. The device should be suitable for any auxillary device and have provisions for mounting in panel boards. Operate without need of any auxiliary supply
Supply, delivey and fixing of FUSE UNITS (ANCHOR /EQUIVALENT)
63 Amps Porcelain fuse unit (500 V)
100 Amps Porcelain fuse unit (500 V)
200 Amps Porcelain fuse unit (500 V)
Supply, delivey and fixing of CHANGE OVER SWITCHES
32 Amps three phase 500 V 4 pole Change over switch
63 Amps three phase 500 V 4 pole Change over switch
100 Amps three phase 500 V 4 pole Change over switch
Supply, delivey and fixing of PVC INSULATED SINGLE CORE MULTI STRAND FIRE RETARDANT FLEXIBLE COPPER CABLE WITH ISI MARK CONFORMING TO IS
Supply, delivey and fixing of HRC - FUSES - HIGHER END
HRC - 16 Amps
HRC - 32 Amps
HRC - 63 Amps
HRC - 125 Amps
HRC - 200 Amps
Supply and delivery of the following Electrical Works :consumable items at the site of work to carryout the general maintenace works
Voltmeter Digital - Three Phase Class 1-AC
Ammeter Digital - Three Phase Class 1-1A
20W 4 Feet LED Fitting with LED (Higher end)
LED OUTDOOR FITTINGS (LIGHT EMITTING DIODE) LOWER END 25W LED Street Light Fitting with LED
Supply and delivery of the following consumable items for Pump Set repairs at the site of work to carryout the general maintenace works
50mm GM Gate valve
80mm GM Gate valve
R I Sheet
Bolts and Nuts - All sizes
50mm GI Pipe
80mm GI Pipe
100mm GI pipe
Supply, delivery and fixing of DI D/F Gate sluice/scour valves (soft seated) resilient seated soft sealing Gate Valves(Sluice Valves) with body Bonnet of Ductile cast iron of Grade GGG 40 or equivalent grade, Wedge fully rubber lined with EPDM replaceable spindle nut without gland packing and with 3 O- Ring protection on the shaft and seals of NBR and the valves should be of Vacuum tight and 100% leak proof with face to face dimensions as per BS 5163- 89/ISI 14846-2000/DIN 3202 F4. All the valves should be with electrostatic powder coating both inside and out side with pocket less straight through body passage. All the valves are to be compatible for buried application with pressure rating PN 10/16 and with 5 years warranty.
150mm DI Gate Valve
Supply, delivey and fixing of C.I. DOUBLE AIR VALVE AS PER ISI 14845/2000 AND WITH 5 YEARS WARRANTY
50mm CI Air Valve
SUMP CLEANING
Cleaning of all storage points like sumps, elevated reservoirs of various capacities available in this scheme at a frequency of once in two months including scrapping the inner side of compartment completely, scouring / dewatering / desilting using required machineries, materials, labour and all other incidental charges, application of bleaching powder/ solution etc complete.
For 5000 to 15000 lit cap sump
For 15001 to 30000 lit cap sump
For 45001 to 60000 lit cap sump
Desilting light or sandysoil or silt from collection well below water level including the charges for special tools & plants and air compressor etc complete
Bleaching powder of 34% concentration as per standard specification.
COMBINED WATER SUPPLY SCHEME TO NAMATHODU AND CHETPET RTP AND 22 OTHER HABITATIONS IN PERANAMALLUR UNION OF TIRUVANNAMALAI DISTRICT
Operation and Maintenance of the Electro Mechanical installations, equipments, components, pipelines valves and appurtenances, water retaining structures including protecton of all schemee components from damages/ theft undertaking legal actions for such untoward incidents, preventive maintenance, disinfection and deliverance of water as per quality standards and supply of earmarked quantity of water to the beneficiaries as per Annexure .........., carrying out the O&M as per standard operating procedures, Acts and rules in force and as directed by TWAD Board Oficers and excluding cost towards attending leak, burst repair and replacement works to electro mechanical installations consumables for disinfection of water, cleaning of all water retaining structure, electricity .
Repair & Renewals and Leak & Bursts :
Attending Leaks in the PVC pipelines of this CWSS for the following items, as per the standard procedure including earthwork excavation, dewatering, removing, relaying, jointing, civil works, cost of materials and all other incidental charges, etc complete within the stipulated time limit as directed by the TWAD Board officers.
PVC 4 KSC Pipes_Minor Leak
90mm OD PVC 4 KSC pipes_Minor Leak
110mm OD PVC 4 KSC pipes_Minor Leak
140mm OD PVC 4 KSC pipes_Minor Leak
PVC 4 KSC Pipes_Major Leak
90mm OD PVC 4 KSC pipes_Major Leak
110mm OD PVC 4 KSC pipes_Major Leak
140mm OD PVC 4 KSC pipes_Major Leak
Attending Leaks/Bursts in the HDPE pipelines of this CWSS for the following items, as per the standard procedure including earthwork excavation, dewatering, removing, relaying, jointing by Electro fusion/butt Joint, civil works, cost of materials and all other incidental charges, etc complete within the stipulated time limit as directed by the TWAD Board officers.
HDPE PN 6 Pipes_Minor Leaks
110mm HDPE PN 6 pipes_Minor Leak
140mm HDPE PN 6 pipes_Minor Leak
160mm HDPE PN 6 pipes_Minor Leak
200mm HDPE PN 6 pipes_Minor Leak
HDPE PN 6 Pipes_Major Leaks
125mm HDPE PN 6 pipes_Major Leak
160mm HDPE PN 6 pipes_Major Leak
200mm HDPE PN 6 pipes_Major Leak
Attending leaks and bursts in GI pipes of various sizes including Supply and delivery of following G I PIPES (MEDIUM) AS PER IS 1239/PART I/2004 and Lowering GI pipes and specials in the trenches and laying to proper grade and alignment, jointing with GI Specials and as directed by the TWAD Officers
80mm GI Pipe leak above GL
100mm GI Pipe leak above GL
Attending joint (Collar) Leaks in the AC pipelines of this CWSS for the following items, as per the standard procedure including earthwork excavation, dewatering, removing, relaying, jointing, civil works, cost of materials and all incidental charges, etc complete within the stipulated time limit as specified in Clause 2.6.4 of General conditions of Contract
AC Pipe_Collar Leak
150mm AC_Collar Leak
200mm AC_Collar Leak
250mm AC_Collar Leak
AC Pipe_Minor Leak centre crack
150mm AC Pipe_MS Cut Barrel
200mm AC Pipe_MS Cut Barrel
250mm AC Pipe_MS Cut Barrel
Attending Leaks/Bursts in the O-PVC pipelines of this CWSS for the following items, as per the standard procedure including earthwork excavation, dewatering, removing, relaying, jointing, civil works, cost of materials and all incidental charges, etc complete within the stipulated time limit as specified in Clause 2.6.4 of General conditions of Contract
250mm O-PVC Pipe Leak
Attending Leaks/Bursts in the DI pipelines of this CWSS for the following items, as per the standard procedure including earthwork excavation, dewatering, removing, relaying, jointing, civil works, cost of materials and all incidental charges, etc complete within the stipulated time limit as specified in Clause 2.6.4 of General conditions of Contract
DI Pipes_Minor Leak
150mm DI pipes - Minor leak
Labour for cutting open B.T. Roads (or) Maccadam road for laying water mains - 15 cm thick (SOR VOL II P.195)
For all size Pumping mains
Road Restoration with PCC 1:2:4 using 20 mm HBGS for the Concrete Road cut Portion after the pipes are laid, joined and tested complete and as directed by TWAD Board Officers - 15 cm thick
For all size Pumping mains
MATERIALS
Supply and delivery of following sizes of UN PLASTICIZED O-PVC PIPES FOR POTABLE WATER SUPPLY AS PER IS 16647 / 2017 inclusive of transportation charges to stockyard excluding unloading anywhere in Tamilnadu etc, complete and as directed by the TWAD Board officers. (SOR VOL II P.11)
250mm O-PVC PIPE PN 12.5 Class 500
Supply and delivery of following sizes of HDPE PIPES - PE 100 AS PER IS 4984/2016 (Pre-Compounded Resin) inclusive of transportation charges to stockyard excluding unloading anywhere in Tamilnadu etc, complete and as directed by the TWAD Board officers. (SOR VOL II P.14)
200mm HDPE PN 6
160mm HDPE PN 6
140mm HDPE PN 6
125mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
CIVIL WORKS
Earth work excavation and depositing on bank with initial lead of 10 m and initial lift of 2m in narrow trenches for laying of pipes for water supply in the following types of soil
Hard stiff clay, stiff black cotton, hard red earth, shales, murrum gravel, stoney earth and earth mixed with small size boulders and hard gravelly soil. (SOR VOL II P.192)
250mm O PVC
200mm HDPE PN 6
160mm HDPE PN 6
140mm HDPE PN 6
140mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
Lowering of OPVC Pipes and specials in the trenches and laying to proper grade and alignment and as directed by the TWAD Officers. (SOR VOL II P.161)
250mm O PVC
Lowering HDPE pipes and specials to trench and laying to proper grade and alignment and as directed by the TWAD Officers. (SOR VOL II P.171)
200mm HDPE PN 6
160mm HDPE PN 6
140mm HDPE PN 6
125mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
Jointing OPVC-S/S pipes and specials with rubber gaskets (tyton joint) including cost of lubricants. (including cost of jointing materials) (SOR VOL II P.164)
250mm O PVC - 6m Length
Jointing HDPE Pipes and Specials by butt fusion welding / electro fusion welding joints using fusion equipment as per ISO 21307-2011 and as per IS 7634 (part-2) : 2012 including cost of hire charges for butt fusion equipment power supply arrangements etc., complete as per directed by TWAD Board Officers. (SOR VOL II P.184)
200mm HDPE PN 6
160mm HDPE PN 6
140mm HDPE PN 6
125mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
75mm HDPE PN 6
63mm HDPE PN 6
Refiling with excavated sand or other loose soil complying with standerd specification in layers of 15 cm thick well rammed and consolidated after pipes and specials are laid and tested. (SOR VOL II P.192)
250mm O PVC
200mm HDPE PN 6
160mm HDPE PN 6
140mm HDPE PN 6
125mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
Pumpsets
Carrying out the following repair works occuring during the maintenance period in the Electrical, Mechanical and Elctro-mechanical items to bring back the scheme / components into normal running conditition as per standard specification including all labour charges, cost of materials and all incidental charges within the stipulated time limit etc., complete as specified in Clause 2.8 of General conditions of Contract Part II etc as directed by TWAD Board officers
Attending the Rewinding, Repair and Renewal works in various capacity Open Well Submersible Pumpsets
Removing the Submersible pumpset by using tripod set after disconnecting the power supply cable and delivery pipe line fittings
5HP -OWS
7.5HP -OWS
12.50HP -OWS
30HP -OWS
Transporting the pumpset from Pump House to work shop.
5HP -OWS
7.5HP -OWS
12.50HP -OWS
30HP -OWS
Rewinding the submersible motor using best quality winding wire including cost of wire, Sleeve, other insulating and fibre class materials after deducting the cost of old materials.
5HP -OWS
7.5HP -OWS
12.50HP -OWS
30HP -OWS
Reconditioning the worn-out shaft and fittings, impeller and Gun Metal/ SS Bushes including cost of lath work & labour charges etc.,
5HP -OWS
7.5HP -OWS
12.50HP -OWS
30HP -OWS
Replacement of carbon type thrust bearing and pumpside Gun Metal Bush including cost of labour charges after deducting the cost of old material
5HP -OWS
7.5HP -OWS
12.50HP -OWS
30HP -OWS
Transporting charges for Submersible pumpset from work shop to Pump House after attending repair works.
5HP -OWS
7.5HP -OWS
12.50HP -OWS
30HP -OWS
Re-erection of pumpset in the Sump / Well by using tripod set and required Rubber washer and Bolt & Nuts and connecting the power supply cable and delivery pipeline arrangements testing to trial pumping.
5HP -OWS
7.5HP -OWS
12.50HP -OWS
30HP -OWS
Attending the Rewinding, Repair and Renewal works in Monoblock Pumpset
5HP_Monoblock
Removing the Monblock Centrifugal Pumpset from the Bed assembly by using contractors tools and materials after disconnecting the power supply cable and delivery pipe line fittings with required dummy plate arrangements.
Transporting the pumpset from the Pumping Station to work shop.
Removing the Burnt winding materials from the stator slots and cleaning the stator and rotor assembly by using contractor tools and materials
Reconditioning the worn-out shaft and fittings, impeller and Rope gland bush including cost of lath work & labour charges etc.,
Rewinding the Monblock Centrifugal Motor using best quality winding wire including cost of wire, Sleeve, other insulating and fibre class materials after deducting the cost of old materials.
Replacement of driven end (No: XXXX) and Non driven end (No:XXXX) Bearings suitable for Monblock Centrifugal Motor including the cost of Bearing and labour charges after deducting the cost of old materials.
Replacement of cooling fan at motor end and Terminal Board for suitable for Monblock Centrifugal Pumpset and labour charges after deducting the cost of old materials.
Transporting charges for Monblock Centrifugal Pumpset from work shop to Pump House after attending repair works.
Re-erection of pumpset in the Sump / Well by using required Rubber washer and Bolt & Nuts and connecting the power supply cable and delivery pipe line arrangements, testing and trial pumping.
7.5HP_Monoblock
Removing the Monblock Centrifugal Pumpset from the Bed assembly by using contractors tools and materials after disconnecting the power supply cable and delivery pipe line fittings with required dummy plate arrangements.
Transporting the pumpset from the Pumping Station to work shop.
Removing the Burnt winding materials from the stator slots and cleaning the stator and rotor assembly by using contractor tools and materials
Reconditioning the worn-out shaft and fittings, impeller and Rope gland bush including cost of lath work & labour charges etc.,
Rewinding the Monblock Centrifugal Motor using best quality winding wire including cost of wire, Sleeve, other insulating and fibre class materials after deducting the cost of old materials.
Replacement of driven end (No: XXXX) and Non driven end (No:XXXX) Bearings suitable for Monblock Centrifugal Motor including the cost of Bearing and labour charges after deducting the cost of old materials.
Replacement of cooling fan at motor end and Terminal Board for suitable for Monblock Centrifugal Pumpset and labour charges after deducting the cost of old materials.
Transporting charges for Monblock Centrifugal Pumpset from work shop to Pump House after attending repair works.
Re-erection of pumpset in the Sump / Well by using required Rubber washer and Bolt & Nuts and connecting the power supply cable and delivery pipe line arrangements, testing and trial pumping.
Attending the Rewinding and replacement of bearings of Induction Motor for Horizontal Split Casing Pumpsets
50HP -HSC_Motor
Charges for removing the motor from bed after disconnection of power supply cable, Earthing line and Coupling arrangements by using contractor tools and materials.
Transportation charges for conveying the motor from the Booster Station to Our work shop including loading and unloading charges.
Labour Charges for removing the two end side cover with fan arrangements and the damaged driven end and non driven end bearings.
Charges for removing the burnt wires from the rotor assembly and cleaning and checking the slots of rotor and labour charges for rewinding of Centrifugal Squirrel Cage Induction Motor after deducting the cost of old materials and including suppy and delivery of Class ‘F’ Insulation Super enameled Copper wire, required for rewinding and Fiber Glass wire, Fiber Glass Sleeves, Class ‘F’ insulation paper, Copper Socket and FG thread required for rewinding of Squirrel Cage Induction Motor
Labour Charges for reconditioning the worn out shaft for driven end and non driven end bearing seating, knurling, bend checking, and etc.,
Supply and delivery of Driven End and Non Driven End bearings suitable for the required Induction Motor
Labour Charges fixing the DE and NDE bearings correctly and neatly with required lubrications by contractors tools & Materials
Transportation charges for conveying the motor from work shop to Pumping Station
Charges for reassembling the motor with bed and pump coupling, alignment checking connecting power supply cable, including required bolt and Nuts and testing trial running etc.,
Attending the Repair and Reconditioning works of various capacities of Horizontal Split Casing Pumpsets
50HP -HSC_Pump
Charges for removing the motor from bed assembly after dismantling of Coupling arrangements and removing the pump assembly and including the provision of dummy flange arrangements by using contractor tools and materials.
Transportation charges for conveying the Pump assembly from the Pumping Station to work shop including loading and unloading charges.
Labour Charges for removing the impeller by using hydralic system, DE and NDE Bearings
Labour Charges for reconditioning the worn out shaft including welding the shaft to suit the impeller and suit the driven end and non driven end bearing seating, knurling, bend checking and etc.,
Supply, delivery and fixing of Shaft sleeves in Gun metal including machining charges and making key ways after deducting the scrap materials
Balancing of Rotor with impeller both dyanamically and Hydralically by using required dyanamic balancing machine
Supply, delivery and fixing of Gunmetal seal rings for impeller neck including machining charges after deducting the scrap materials
Supply and delivery of Driven End and Non Driven End bearings
Labour Charges fixing the DE and NDE bearings correctly and neatly with required lubrications by contractors tools & Materials
Transportation charges for conveying the Pump assembly from work shop to Pumping Station.
Charges for reassembling the Pump with Motor by using pulley and alignment checking, including required bolt and Nuts and testing trial running etc.,
SUPPLY AND DELIVERY OF SERVICE CONNECTION ACCESSORIES L.T. 1100V PVC ALUMINIUM ARMOURED UNDER GROUND CABLE WITH ISI MARK
70 Sq.mm 3.5 Core
95 Sq.mm 3.5 Core
120 Sq.mm 3.5 Core
SUPPLY AND DELIVERY OF L.T. CABLES following size sq mm 3 CORE 1.1 KV GRADE ARMOURED ALUMINIUM CONDUCTOR CROSS LINKED POLY ETHYLENE INSULATED PVC SHEATHED CABLES CONFORMING TO IS 7098 (PART I)/1988 WITH ISI MARKING
95 Sq.mm 3 Core
SUPPLY AND DELIVERY OF PVC INSULATED AND SHEATHED following sq mm 3 CORE FLAT TYPE COPPER CABLE CONFORMING TO IS 694/1989
SUPPLY AND DELIVERY OF 150mm dia Pressure Gauge and Vaccum guage including all accessories as per specification (For Suction and Delivery to be mounted on wall on Teak Wood Board)
Supply, delivey and fixing of MOULDED CASE CIRCUIT BREAKER (MCCB) WITH THERMO MAGNETIC RELEASE - 4 Pole
Range - 63/100A
Range - 125A
Supply, delivey and fixing of RATE FOR MIXED DI-ELECTRIC CAPACITOR WITH TNEB TEST CERTIFICATE WITH ACCESSORIES INCLUDING BANKING CONFORMIING TO IS 2834.
Supply, delivey and fixing of Electro magnetic contactors of suitable capacity in AC Three Phase rating, conforming to IS/IEC 60947-4-1.
Supply, delivey and fixing of Overload Relays: Directly operated Bimetallic Thermal overload relay which operates in case of overload and also in case of under voltage with manual and auto reset mode.
Supply, delivey and fixing of Preventer – Single Phasing - Electric Motor protection device against single phasing. The device should protect the motor against single phasing, reverse phasing and unbalance supply. The device should be suitable for any auxillary device and have provisions for mounting in panel boards. Operate without need of any auxiliary supply.
Electric Motor protection device against dry running. The device should protect the motor against Dry running. The device should be suitable for any auxillary device and have provisions for mounting in panel boards. Operate without need of any auxiliary supply
Supply, delivey and fixing of FUSE UNITS (ANCHOR /EQUIVALENT)
63 Amps Porcelain fuse unit (500 V)
100 Amps Porcelain fuse unit (500 V)
200 Amps Porcelain fuse unit (500 V)
Supply, delivey and fixing of CHANGE OVER SWITCHES
100 Amps three phase 500 V 4 pole Change over switch
200 Amps three phase 500 V 4 pole Change over switch
250 Amps three phase 500 V 4 pole Change over switch
Supply, delivey and fixing of PVC INSULATED SINGLE CORE MULTI STRAND FIRE RETARDANT FLEXIBLE COPPER CABLE WITH ISI MARK CONFORMING TO IS
Supply, delivey and fixing of HRC - FUSES - HIGHER END
HRC - 16 Amps
HRC - 32 Amps
HRC - 63 Amps
HRC - 125 Amps
HRC - 200 Amps
Supply and delivery of the following Electrical Works :consumable items at the site of work to carryout the general maintenace works
Voltmeter Digital - Three Phase Class 1-AC
Ammeter Digital - Three Phase Class 1-1A
20W 4 Feet LED Fitting with LED (Higher end)
LED OUTDOOR FITTINGS (LIGHT EMITTING DIODE) LOWER END 25W LED Street Light Fitting with LED
Supply and delivery of the following consumable items for Pump Set repairs at the site of work to carryout the general maintenace works
80mm GM Gate valve
100mm GM Gate valve
R I Sheet
Bolts and Nuts - All sizes
50mm GI Pipe
80mm GI Pipe
100mm GI pipe
Supply, delivery and fixing of DI D/F Gate sluice/scour valves (soft seated) resilient seated soft sealing Gate Valves(Sluice Valves) with body Bonnet of Ductile cast iron of Grade GGG 40 or equivalent grade, Wedge fully rubber lined with EPDM replaceable spindle nut without gland packing and with 3 O- Ring protection on the shaft and seals of NBR and the valves should be of Vacuum tight and 100% leak proof with face to face dimensions as per BS 5163- 89/ISI 14846-2000/DIN 3202 F4. All the valves should be with electrostatic powder coating both inside and out side with pocket less straight through body passage. All the valves are to be compatible for buried application with pressure rating PN 10/16 and with 5 years warranty.
100mm DI Gate Valve
150mm DI Gate Valve
Supply, delivey and fixing of C.I. DOUBLE AIR VALVE AS PER ISI 14845/2000 AND WITH 5 YEARS WARRANTY
50mm CI Air Valve
80mm CI Air Valve
100mm CI Air Valve
SUMP CLEANING
Cleaning of all storage points like sumps, elevated reservoirs of various capacities available in this scheme at a frequency of once in two months including scrapping the inner side of compartment completely, scouring / dewatering / desilting using required machineries, materials, labour and all other incidental charges, application of bleaching powder/ solution etc complete.
For 60001 to 75000 lit cap sump
For 75001 to 100000 lit cap sump
Desilting light or sandysoil or silt from collection well below water level including the charges for special tools & plants and air compressor etc complete
Bleaching powder of 34% concentration as per standard specification.
COMBINED WATER SUPPLY SCHEME TO ABDULLAPURAM AND 13 OTHER HABITATIONS IN VEMBAKKAM UNION OF TIRUVANNAMALAI DISTRICT
Operation and Maintenance of the Electro Mechanical installations, equipments, components, pipelines valves and appurtenances, water retaining structures including protecton of all schemee components from damages/ theft undertaking legal actions for such untoward incidents, preventive maintenance, disinfection and deliverance of water as per quality standards and supply of earmarked quantity of water to the beneficiaries as per Annexure .........., carrying out the O&M as per standard operating procedures, Acts and rules in force and as directed by TWAD Board Oficers and excluding cost towards attending leak, burst repair and replacement works to electro mechanical installations consumables for disinfection of water, cleaning of all water retaining structure, electricity .
Repair & Renewals and Leak & Bursts :
Attending Leaks in the PVC pipelines of this CWSS for the following items, as per the standard procedure including earthwork excavation, dewatering, removing, relaying, jointing, civil works, cost of materials and all other incidental charges, etc complete within the stipulated time limit as directed by the TWAD Board officers.
PVC 4 KSC Pipes_Minor Leak
63mm OD PVC 4 KSC pipes_Minor Leak
75mm OD PVC 4 KSC pipes_Minor Leak
90mm OD PVC 4 KSC pipes_Minor Leak
110mm OD PVC 4 KSC pipes_Minor Leak
140mm OD PVC 4 KSC pipes_Minor Leak
PVC 4 KSC Pipes_Major Leak
63mm OD PVC 4 KSC pipes_Major Leak
75mm OD PVC 4 KSC pipes_Major Leak
90mm OD PVC 4 KSC pipes_Major Leak
110mm OD PVC 4 KSC pipes_Major Leak
140mm OD PVC 4 KSC pipes_Major Leak
Attending Leaks/Bursts in the HDPE pipelines of this CWSS for the following items, as per the standard procedure including earthwork excavation, dewatering, removing, relaying, jointing by Electro fusion/butt Joint, civil works, cost of materials and all other incidental charges, etc complete within the stipulated time limit as directed by the TWAD Board officers.
HDPE PN 6 Pipes_Minor Leaks
63mm HDPE PN 6 pipes_Minor Leak
75mm HDPE PN 6 pipes_Minor Leak
140mm HDPE PN 6 pipes_Minor Leak
160mm HDPE PN 6 pipes_Minor Leak
HDPE PN 6 Pipes_Major Leaks
63mm HDPE PN 6 pipes_Major Leak
75mm HDPE PN 6 pipes_Major Leak
140mm HDPE PN 6 pipes_Major Leak
160mm HDPE PN 6 pipes_Major Leak
Attending leaks and bursts in GI pipes of various sizes including Supply and delivery of following G I PIPES (MEDIUM) AS PER IS 1239/PART I/2004 and Lowering GI pipes and specials in the trenches and laying to proper grade and alignment, jointing with GI Specials and as directed by the TWAD Officers
50mm GI Pipe leak above GL
65mm GI Pipe leak above GL
80mm GI Pipe leak above GL
100mm GI Pipe leak above GL
Attending joint (Collar) Leaks in the AC pipelines of this CWSS for the following items, as per the standard procedure including earthwork excavation, dewatering, removing, relaying, jointing, civil works, cost of materials and all incidental charges, etc complete within the stipulated time limit as specified in Clause 2.6.4 of General conditions of Contract
AC Pipe_Collar Leak
150mm AC_Collar Leak
Labour for cutting open B.T. Roads (or) Maccadam road for laying water mains - 15 cm thick (SOR VOL II P.195)
For all size Pumping mains
Road Restoration with PCC 1:2:4 using 20 mm HBGS for the Concrete Road cut Portion after the pipes are laid, joined and tested complete and as directed by TWAD Board Officers - 15 cm thick
For all size Pumping mains
MATERIALS
Supply and delivery of following sizes of HDPE PIPES - PE 100 AS PER IS 4984/2016 (Pre-Compounded Resin) inclusive of transportation charges to stockyard excluding unloading anywhere in Tamilnadu etc, complete and as directed by the TWAD Board officers. (SOR VOL II P.14)
160mm HDPE PN 6
140mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
75mm HDPE PN 6
63mm HDPE PN 6
CIVIL WORKS
Earth work excavation and depositing on bank with initial lead of 10 m and initial lift of 2m in narrow trenches for laying of pipes for water supply in the following types of soil
Hard stiff clay, stiff black cotton, hard red earth, shales, murrum gravel, stoney earth and earth mixed with small size boulders and hard gravelly soil. (SOR VOL II P.192)
160mm HDPE PN 6
140mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
75mm HDPE PN 6
63mm HDPE PN 6
Lowering HDPE pipes and specials to trench and laying to proper grade and alignment and as directed by the TWAD Officers. (SOR VOL II P.171)
160mm HDPE PN 6
140mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
75mm HDPE PN 6
63mm HDPE PN 6
Jointing HDPE Pipes and Specials by butt fusion welding / electro fusion welding joints using fusion equipment as per ISO 21307-2011 and as per IS 7634 (part-2) : 2012 including cost of hire charges for butt fusion equipment power supply arrangements etc., complete as per directed by TWAD Board Officers. (SOR VOL II P.184)
160mm HDPE PN 6
140mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
75mm HDPE PN 6
63mm HDPE PN 6
Refiling with excavated sand or other loose soil complying with standerd specification in layers of 15 cm thick well rammed and consolidated after pipes and specials are laid and tested. (SOR VOL II P.192)
160mm HDPE PN 6
140mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
75mm HDPE PN 6
63mm HDPE PN 6
Pumpsets
Carrying out the following repair works occuring during the maintenance period in the Electrical, Mechanical and Elctro-mechanical items to bring back the scheme / components into normal running conditition as per standard specification including all labour charges, cost of materials and all incidental charges within the stipulated time limit etc., complete as specified in Clause 2.8 of General conditions of Contract Part II etc as directed by TWAD Board officers
Attending the Rewinding, Repair and Renewal works in various capacity Open Well Submersible Pumpsets
Removing the Submersible pumpset by using tripod set after disconnecting the power supply cable and delivery pipe line fittings
5HP -OWS
10HP -OWS
12.50HP -OWS
Transporting the pumpset from Pump House to work shop.
5HP -OWS
10HP -OWS
12.50HP -OWS
Rewinding the submersible motor using best quality winding wire including cost of wire, Sleeve, other insulating and fibre class materials after deducting the cost of old materials.
5HP -OWS
10HP -OWS
12.50HP -OWS
Reconditioning the worn-out shaft and fittings, impeller and Gun Metal/ SS Bushes including cost of lath work & labour charges etc.,
5HP -OWS
10HP -OWS
12.50HP -OWS
Replacement of carbon type thrust bearing and pumpside Gun Metal Bush including cost of labour charges after deducting the cost of old material
5HP -OWS
10HP -OWS
12.50HP -OWS
Transporting charges for Submersible pumpset from work shop to Pump House after attending repair works.
5HP -OWS
10HP -OWS
12.50HP -OWS
Re-erection of pumpset in the Sump / Well by using tripod set and required Rubber washer and Bolt & Nuts and connecting the power supply cable and delivery pipeline arrangements testing to trial pumping.
5HP -OWS
10HP -OWS
12.50HP -OWS
SUPPLY AND DELIVERY OF SERVICE CONNECTION ACCESSORIES L.T. 1100V PVC ALUMINIUM ARMOURED UNDER GROUND CABLE WITH ISI MARK
25 Sq.mm 3.5 Core
35 Sq.mm 3.5 Core
50 Sq.mm 3.5 Core
SUPPLY AND DELIVERY OF L.T. CABLES following size sq mm 3 CORE 1.1 KV GRADE ARMOURED ALUMINIUM CONDUCTOR CROSS LINKED POLY ETHYLENE INSULATED PVC SHEATHED CABLES CONFORMING TO IS 7098 (PART I)/1988 WITH ISI MARKING
50 Sq.mm 3 Core
SUPPLY AND DELIVERY OF PVC INSULATED AND SHEATHED following sq mm 3 CORE FLAT TYPE COPPER CABLE CONFORMING TO IS 694/1989
SUPPLY AND DELIVERY OF 150mm dia Pressure Gauge and Vaccum guage including all accessories as per specification (For Suction and Delivery to be mounted on wall on Teak Wood Board)
Supply, delivey and fixing of MOULDED CASE CIRCUIT BREAKER (MCCB) WITH THERMO MAGNETIC RELEASE - 4 Pole
Range - 63/100A
Supply, delivey and fixing of RATE FOR MIXED DI-ELECTRIC CAPACITOR WITH TNEB TEST CERTIFICATE WITH ACCESSORIES INCLUDING BANKING CONFORMIING TO IS 2834.
Supply, delivey and fixing of Electro magnetic contactors of suitable capacity in AC Three Phase rating, conforming to IS/IEC 60947-4-1.
Supply, delivey and fixing of Overload Relays: Directly operated Bimetallic Thermal overload relay which operates in case of overload and also in case of under voltage with manual and auto reset mode.
Supply, delivey and fixing of Preventer – Single Phasing - Electric Motor protection device against single phasing. The device should protect the motor against single phasing, reverse phasing and unbalance supply. The device should be suitable for any auxillary device and have provisions for mounting in panel boards. Operate without need of any auxiliary supply.
Electric Motor protection device against dry running. The device should protect the motor against Dry running. The device should be suitable for any auxillary device and have provisions for mounting in panel boards. Operate without need of any auxiliary supply
Supply, delivey and fixing of FUSE UNITS (ANCHOR /EQUIVALENT)
63 Amps Porcelain fuse unit (500 V)
100 Amps Porcelain fuse unit (500 V)
200 Amps Porcelain fuse unit (500 V)
Supply, delivey and fixing of CHANGE OVER SWITCHES
16 Amps three phase 500 V 4 pole Change over switch
32 Amps three phase 500 V 4 pole Change over switch
63 Amps three phase 500 V 4 pole Change over switch
100 Amps three phase 500 V 4 pole Change over switch
Supply, delivey and fixing of PVC INSULATED SINGLE CORE MULTI STRAND FIRE RETARDANT FLEXIBLE COPPER CABLE WITH ISI MARK CONFORMING TO IS
Supply, delivey and fixing of HRC - FUSES - HIGHER END
HRC - 16 Amps
HRC - 32 Amps
HRC - 63 Amps
HRC - 125 Amps
Supply and delivery of the following Electrical Works :consumable items at the site of work to carryout the general maintenace works
Voltmeter Digital - Three Phase Class 1-AC
Ammeter Digital - Three Phase Class 1-1A
20W 4 Feet LED Fitting with LED (Higher end)
LED OUTDOOR FITTINGS (LIGHT EMITTING DIODE) LOWER END 25W LED Street Light Fitting with LED
Supply and delivery of the following consumable items for Pump Set repairs at the site of work to carryout the general maintenace works
50mm GM Gate valve
80mm GM Gate valve
R I Sheet
Bolts and Nuts - All sizes
50mm GI Pipe
80mm GI Pipe
100mm GI pipe
Supply, delivery and fixing of DI D/F Gate sluice/scour valves (soft seated) resilient seated soft sealing Gate Valves(Sluice Valves) with body Bonnet of Ductile cast iron of Grade GGG 40 or equivalent grade, Wedge fully rubber lined with EPDM replaceable spindle nut without gland packing and with 3 O- Ring protection on the shaft and seals of NBR and the valves should be of Vacuum tight and 100% leak proof with face to face dimensions as per BS 5163- 89/ISI 14846-2000/DIN 3202 F4. All the valves should be with electrostatic powder coating both inside and out side with pocket less straight through body passage. All the valves are to be compatible for buried application with pressure rating PN 10/16 and with 5 years warranty.
100mm DI Gate Valve
Supply, delivey and fixing of C.I. DOUBLE AIR VALVE AS PER ISI 14845/2000 AND WITH 5 YEARS WARRANTY
50mm CI Air Valve
SUMP CLEANING
Cleaning of all storage points like sumps, elevated reservoirs of various capacities available in this scheme at a frequency of once in two months including scrapping the inner side of compartment completely, scouring / dewatering / desilting using required machineries, materials, labour and all other incidental charges, application of bleaching powder/ solution etc complete.
For 15001 to 30000 lit cap sump
Desilting light or sandysoil or silt from collection well below water level including the charges for special tools & plants and air compressor etc complete
Bleaching powder of 34% concentration as per standard specification.
COMBINED WATER SUPPLY SCHEME TO ANAKKAVUR AND 6 OTHER HABITATIONS IN ANAKKAVUR UNION OF TIRUVANNAMALAI DISTRICT
Operation and Maintenance of the Electro Mechanical installations, equipments, components, pipelines valves and appurtenances, water retaining structures including protecton of all schemee components from damages/ theft undertaking legal actions for such untoward incidents, preventive maintenance, disinfection and deliverance of water as per quality standards and supply of earmarked quantity of water to the beneficiaries as per Annexure .........., carrying out the O&M as per standard operating procedures, Acts and rules in force and as directed by TWAD Board Oficers and excluding cost towards attending leak, burst repair and replacement works to electro mechanical installations consumables for disinfection of water, cleaning of all water retaining structure, electricity .
Repair & Renewals and Leak & Bursts :
Attending Leaks in the PVC pipelines of this CWSS for the following items, as per the standard procedure including earthwork excavation, dewatering, removing, relaying, jointing, civil works, cost of materials and all other incidental charges, etc complete within the stipulated time limit as directed by the TWAD Board officers.
PVC 4 KSC Pipes_Minor Leak
75mm OD PVC 4 KSC pipes_Minor Leak
90mm OD PVC 4 KSC pipes_Minor Leak
140mm OD PVC 4 KSC pipes_Minor Leak
PVC 4 KSC Pipes_Major Leak
75mm OD PVC 4 KSC pipes_Major Leak
90mm OD PVC 4 KSC pipes_Major Leak
140mm OD PVC 4 KSC pipes_Major Leak
Attending Leaks/Bursts in the HDPE pipelines of this CWSS for the following items, as per the standard procedure including earthwork excavation, dewatering, removing, relaying, jointing by Electro fusion/butt Joint, civil works, cost of materials and all other incidental charges, etc complete within the stipulated time limit as directed by the TWAD Board officers.
HDPE PN 6 Pipes_Minor Leaks
140mm HDPE PN 6 pipes_Minor Leak
HDPE PN 6 Pipes_Major Leaks
140mm HDPE PN 6 pipes_Major Leak
Attending leaks and bursts in GI pipes of various sizes including Supply and delivery of following G I PIPES (MEDIUM) AS PER IS 1239/PART I/2004 and Lowering GI pipes and specials in the trenches and laying to proper grade and alignment, jointing with GI Specials and as directed by the TWAD Officers
50mm GI Pipe leak above GL
65mm GI Pipe leak above GL
80mm GI Pipe leak above GL
100mm GI Pipe leak above GL
Labour for cutting open B.T. Roads (or) Maccadam road for laying water mains - 15 cm thick (SOR VOL II P.195)
For all size Pumping mains
Road Restoration with PCC 1:2:4 using 20 mm HBGS for the Concrete Road cut Portion after the pipes are laid, joined and tested complete and as directed by TWAD Board Officers - 15 cm thick
For all size Pumping mains
MATERIALS
Supply and delivery of following sizes of HDPE PIPES - PE 100 AS PER IS 4984/2016 (Pre-Compounded Resin) inclusive of transportation charges to stockyard excluding unloading anywhere in Tamilnadu etc, complete and as directed by the TWAD Board officers. (SOR VOL II P.14)
140mm HDPE PN 6
90mm HDPE PN 6
75mm HDPE PN 6
CIVIL WORKS
Earth work excavation and depositing on bank with initial lead of 10 m and initial lift of 2m in narrow trenches for laying of pipes for water supply in the following types of soil
Hard stiff clay, stiff black cotton, hard red earth, shales, murrum gravel, stoney earth and earth mixed with small size boulders and hard gravelly soil. (SOR VOL II P.192)
140mm HDPE PN 6
90mm HDPE PN 6
75mm HDPE PN 6
Lowering HDPE pipes and specials to trench and laying to proper grade and alignment and as directed by the TWAD Officers. (SOR VOL II P.171)
140mm HDPE PN 6
90mm HDPE PN 6
75mm HDPE PN 6
Jointing HDPE Pipes and Specials by butt fusion welding / electro fusion welding joints using fusion equipment as per ISO 21307-2011 and as per IS 7634 (part-2) : 2012 including cost of hire charges for butt fusion equipment power supply arrangements etc., complete as per directed by TWAD Board Officers. (SOR VOL II P.184)
140mm HDPE PN 6
90mm HDPE PN 6
75mm HDPE PN 6
Refiling with excavated sand or other loose soil complying with standerd specification in layers of 15 cm thick well rammed and consolidated after pipes and specials are laid and tested. (SOR VOL II P.192)
140mm HDPE PN 6
90mm HDPE PN 6
75mm HDPE PN 6
Pumpsets
Carrying out the following repair works occuring during the maintenance period in the Electrical, Mechanical and Elctro-mechanical items to bring back the scheme / components into normal running conditition as per standard specification including all labour charges, cost of materials and all incidental charges within the stipulated time limit etc., complete as specified in Clause 2.8 of General conditions of Contract Part II etc as directed by TWAD Board officers
Attending the Rewinding, Repair and Renewal works in various capacity Open Well Submersible Pumpsets
Removing the Submersible pumpset by using tripod set after disconnecting the power supply cable and delivery pipe line fittings
7.5HP -OWS
12.5HP -OWS
20HP -OWS
Transporting the pumpset from Pump House to work shop.
7.5HP -OWS
12.5HP -OWS
20HP -OWS
Rewinding the submersible motor using best quality winding wire including cost of wire, Sleeve, other insulating and fibre class materials after deducting the cost of old materials.
7.5HP -OWS
12.5HP -OWS
20HP -OWS
Reconditioning the worn-out shaft and fittings, impeller and Gun Metal/ SS Bushes including cost of lath work & labour charges etc.,
7.5HP -OWS
12.5HP -OWS
20HP -OWS
Replacement of carbon type thrust bearing and pumpside Gun Metal Bush including cost of labour charges after deducting the cost of old material
7.5HP -OWS
12.5HP -OWS
20HP -OWS
Transporting charges for Submersible pumpset from work shop to Pump House after attending repair works.
7.5HP -OWS
12.5HP -OWS
20HP -OWS
Re-erection of pumpset in the Sump / Well by using tripod set and required Rubber washer and Bolt & Nuts and connecting the power supply cable and delivery pipeline arrangements testing to trial pumping.
7.5HP -OWS
12.5HP -OWS
20HP -OWS
SUPPLY AND DELIVERY OF SERVICE CONNECTION ACCESSORIES L.T. 1100V PVC ALUMINIUM ARMOURED UNDER GROUND CABLE WITH ISI MARK
25 Sq.mm 3.5 Core
35 Sq.mm 3.5 Core
50 Sq.mm 3.5 Core
SUPPLY AND DELIVERY OF L.T. CABLES following size sq mm 3 CORE 1.1 KV GRADE ARMOURED ALUMINIUM CONDUCTOR CROSS LINKED POLY ETHYLENE INSULATED PVC SHEATHED CABLES CONFORMING TO IS 7098 (PART I)/1988 WITH ISI MARKING
50 Sq.mm 3 Core
SUPPLY AND DELIVERY OF PVC INSULATED AND SHEATHED following sq mm 3 CORE FLAT TYPE COPPER CABLE CONFORMING TO IS 694/1989
SUPPLY AND DELIVERY OF 150mm dia Pressure Gauge and Vaccum guage including all accessories as per specification (For Suction and Delivery to be mounted on wall on Teak Wood Board)
Supply, delivey and fixing of MOULDED CASE CIRCUIT BREAKER (MCCB) WITH THERMO MAGNETIC RELEASE - 4 Pole
Range - 63/100A
Range - 125A
Supply, delivey and fixing of RATE FOR MIXED DI-ELECTRIC CAPACITOR WITH TNEB TEST CERTIFICATE WITH ACCESSORIES INCLUDING BANKING CONFORMIING TO IS 2834.
Supply, delivey and fixing of Electro magnetic contactors of suitable capacity in AC Three Phase rating, conforming to IS/IEC 60947-4-1.
Supply, delivey and fixing of Overload Relays: Directly operated Bimetallic Thermal overload relay which operates in case of overload and also in case of under voltage with manual and auto reset mode.
Supply, delivey and fixing of Preventer – Single Phasing - Electric Motor protection device against single phasing. The device should protect the motor against single phasing, reverse phasing and unbalance supply. The device should be suitable for any auxillary device and have provisions for mounting in panel boards. Operate without need of any auxiliary supply.
Electric Motor protection device against dry running. The device should protect the motor against Dry running. The device should be suitable for any auxillary device and have provisions for mounting in panel boards. Operate without need of any auxiliary supply
Supply, delivey and fixing of FUSE UNITS (ANCHOR /EQUIVALENT)
63 Amps Porcelain fuse unit (500 V)
100 Amps Porcelain fuse unit (500 V)
200 Amps Porcelain fuse unit (500 V)
Supply, delivey and fixing of CHANGE OVER SWITCHES
100 Amps three phase 500 V 4 pole Change over switch
Supply, delivey and fixing of PVC INSULATED SINGLE CORE MULTI STRAND FIRE RETARDANT FLEXIBLE COPPER CABLE WITH ISI MARK CONFORMING TO IS
Supply, delivey and fixing of HRC - FUSES - HIGHER END
HRC - 16 Amps
HRC - 32 Amps
HRC - 63 Amps
HRC - 125 Amps
Supply and delivery of the following Electrical Works :consumable items at the site of work to carryout the general maintenace works
Voltmeter Digital - Three Phase Class 1-AC
Ammeter Digital - Three Phase Class 1-1A
20W 4 Feet LED Fitting with LED (Higher end)
LED OUTDOOR FITTINGS (LIGHT EMITTING DIODE) LOWER END 25W LED Street Light Fitting with LED
Supply and delivery of the following consumable items for Pump Set repairs at the site of work to carryout the general maintenace works
50mm GM Gate valve
80mm GM Gate valve
R I Sheet
Bolts and Nuts - All sizes
50mm GI Pipe
80mm GI Pipe
Supply, delivery and fixing of DI D/F Gate sluice/scour valves (soft seated) resilient seated soft sealing Gate Valves(Sluice Valves) with body Bonnet of Ductile cast iron of Grade GGG 40 or equivalent grade, Wedge fully rubber lined with EPDM replaceable spindle nut without gland packing and with 3 O- Ring protection on the shaft and seals of NBR and the valves should be of Vacuum tight and 100% leak proof with face to face dimensions as per BS 5163- 89/ISI 14846-2000/DIN 3202 F4. All the valves should be with electrostatic powder coating both inside and out side with pocket less straight through body passage. All the valves are to be compatible for buried application with pressure rating PN 10/16 and with 5 years warranty.
100mm DI Gate Valve
Manufacture, Supply and Delivery of Tamper proof DI single chamber double orifice triple function (ventilating, admiting & ventilating during operation) air release valve with pressure rating PN 10/16 with body and cover made of Ductile Iron of Grade GGG 40 or GGG 50, conforming to IS 1865 with Food Grade Epoxy Powder coating (EP-P) inside and for outside of colour blue RAL 5005. All internal parts such as float, shell etc., cover bolts, made of Austenitic alloy steel of SS AISI 304/316. The float shall be made of Polytetrafluroethylene/ Austenitic alloy steel of AISI 304/316. Gaskets and seals of EPDM / Neoprene rubber for TWAD Board works anywhere in Tamil Nadu and with 5 years warranty
Supply, delivey and fixing of C.I. DOUBLE AIR VALVE AS PER ISI 14845/2000 AND WITH 5 YEARS WARRANTY
50mm CI Air Valve
SUMP CLEANING
Cleaning of all storage points like sumps, elevated reservoirs of various capacities available in this scheme at a frequency of once in two months including scrapping the inner side of compartment completely, scouring / dewatering / desilting using required machineries, materials, labour and all other incidental charges, application of bleaching powder/ solution etc complete.
For 15001 to 30000 lit cap sump
Desilting light or sandysoil or silt from collection well below water level including the charges for special tools & plants and air compressor etc complete
Bleaching powder of 34% concentration as per standard specification.
COMBINED WATER SUPPLY SCHEME TO CHITHATHUR AND 14 OTHER HABITATIONS IN VEMBAKKAM UNION OF TIRUVANNAMALAI DISTRICT
Operation and Maintenance of the Electro Mechanical installations, equipments, components, pipelines valves and appurtenances, water retaining structures including protecton of all schemee components from damages/ theft undertaking legal actions for such untoward incidents, preventive maintenance, disinfection and deliverance of water as per quality standards and supply of earmarked quantity of water to the beneficiaries as per Annexure .........., carrying out the O&M as per standard operating procedures, Acts and rules in force and as directed by TWAD Board Oficers and excluding cost towards attending leak, burst repair and replacement works to electro mechanical installations consumables for disinfection of water, cleaning of all water retaining structure, electricity .
Repair & Renewals and Leak & Bursts :
Attending Leaks in the PVC pipelines of this CWSS for the following items, as per the standard procedure including earthwork excavation, dewatering, removing, relaying, jointing, civil works, cost of materials and all other incidental charges, etc complete within the stipulated time limit as directed by the TWAD Board officers.
PVC 4 KSC Pipes_Minor Leak
63mm OD PVC 4 KSC pipes_Minor Leak
75mm OD PVC 4 KSC pipes_Minor Leak
90mm OD PVC 4 KSC pipes_Minor Leak
110mm OD PVC 4 KSC pipes_Minor Leak
140mm OD PVC 4 KSC pipes_Minor Leak
160mm OD PVC 4 KSC pipes_Minor Leak
PVC 4 KSC Pipes_Major Leak
63mm OD PVC 4 KSC pipes_Major Leak
75mm OD PVC 4 KSC pipes_Major Leak
90mm OD PVC 4 KSC pipes_Major Leak
110mm OD PVC 4 KSC pipes_Major Leak
140mm OD PVC 4 KSC pipes_Major Leak
160mm OD PVC 4 KSC pipes_Major Leak
Attending Leaks/Bursts in the HDPE pipelines of this CWSS for the following items, as per the standard procedure including earthwork excavation, dewatering, removing, relaying, jointing by Electro fusion/butt Joint, civil works, cost of materials and all other incidental charges, etc complete within the stipulated time limit as directed by the TWAD Board officers.
HDPE PN 6 Pipes_Minor Leaks
75mm HDPE PN 6 pipes_Minor Leak
90mm HDPE PN 6 pipes_Minor Leak
110mm HDPE PN 6 pipes_Minor Leak
140mm HDPE PN 6 pipes_Minor Leak
HDPE PN 6 Pipes_Major Leaks
75mm HDPE PN 6 pipes_Major Leak
90mm HDPE PN 6 pipes_Major Leak
110mm HDPE PN 6 pipes_Major Leak
140mm HDPE PN 6 pipes_Major Leak
Attending leaks and bursts in GI pipes of various sizes including Supply and delivery of following G I PIPES (MEDIUM) AS PER IS 1239/PART I/2004 and Lowering GI pipes and specials in the trenches and laying to proper grade and alignment, jointing with GI Specials and as directed by the TWAD Officers
50mm GI Pipe leak above GL
65mm GI Pipe leak above GL
80mm GI Pipe leak above GL
100mm GI Pipe leak above GL
125mm GI Pipe leak above GL
Attending joint (Collar) Leaks in the AC pipelines of this CWSS for the following items, as per the standard procedure including earthwork excavation, dewatering, removing, relaying, jointing, civil works, cost of materials and all incidental charges, etc complete within the stipulated time limit as specified in Clause 2.6.4 of General conditions of Contract
AC Pipe_Collar Leak
150mm AC_Collar Leak
AC Pipe_Minor Leak centre crack
150mm AC Pipe_MS Cut Barrel
Labour for cutting open B.T. Roads (or) Maccadam road for laying water mains - 15 cm thick (SOR VOL II P.195)
For all size Pumping mains
Road Restoration with PCC 1:2:4 using 20 mm HBGS for the Concrete Road cut Portion after the pipes are laid, joined and tested complete and as directed by TWAD Board Officers - 15 cm thick
For all size Pumping mains
MATERIALS
Supply and delivery of following sizes of HDPE PIPES - PE 100 AS PER IS 4984/2016 (Pre-Compounded Resin) inclusive of transportation charges to stockyard excluding unloading anywhere in Tamilnadu etc, complete and as directed by the TWAD Board officers. (SOR VOL II P.14)
160mm HDPE PN 6
140mm HDPE PN 6
125mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
75mm HDPE PN 6
63mm HDPE PN 6
CIVIL WORKS
Earth work excavation and depositing on bank with initial lead of 10 m and initial lift of 2m in narrow trenches for laying of pipes for water supply in the following types of soil
Hard stiff clay, stiff black cotton, hard red earth, shales, murrum gravel, stoney earth and earth mixed with small size boulders and hard gravelly soil. (SOR VOL II P.192)
160mm HDPE PN 6
140mm HDPE PN 6
140mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
75mm HDPE PN 6
63mm HDPE PN 6
Lowering HDPE pipes and specials to trench and laying to proper grade and alignment and as directed by the TWAD Officers. (SOR VOL II P.171)
160mm HDPE PN 6
140mm HDPE PN 6
125mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
75mm HDPE PN 6
63mm HDPE PN 6
Jointing HDPE Pipes and Specials by butt fusion welding / electro fusion welding joints using fusion equipment as per ISO 21307-2011 and as per IS 7634 (part-2) : 2012 including cost of hire charges for butt fusion equipment power supply arrangements etc., complete as per directed by TWAD Board Officers. (SOR VOL II P.184)
160mm HDPE PN 6
140mm HDPE PN 6
125mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
75mm HDPE PN 6
63mm HDPE PN 6
Refiling with excavated sand or other loose soil complying with standerd specification in layers of 15 cm thick well rammed and consolidated after pipes and specials are laid and tested. (SOR VOL II P.192)
160mm HDPE PN 6
140mm HDPE PN 6
125mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
75mm HDPE PN 6
63mm HDPE PN 6
Pumpsets
Carrying out the following repair works occuring during the maintenance period in the Electrical, Mechanical and Elctro-mechanical items to bring back the scheme / components into normal running conditition as per standard specification including all labour charges, cost of materials and all incidental charges within the stipulated time limit etc., complete as specified in Clause 2.8 of General conditions of Contract Part II etc as directed by TWAD Board officers
Attending the Rewinding, Repair and Renewal works in various capacity Open Well Submersible Pumpsets
Removing the Submersible pumpset by using tripod set after disconnecting the power supply cable and delivery pipe line fittings
5HP -OWS
15HP -OWS
Transporting the pumpset from Pump House to work shop.
5HP -OWS
15HP -OWS
Rewinding the submersible motor using best quality winding wire including cost of wire, Sleeve, other insulating and fibre class materials after deducting the cost of old materials.
5HP -OWS
15HP -OWS
Reconditioning the worn-out shaft and fittings, impeller and Gun Metal/ SS Bushes including cost of lath work & labour charges etc.,
5HP -OWS
15HP -OWS
Replacement of carbon type thrust bearing and pumpside Gun Metal Bush including cost of labour charges after deducting the cost of old material
5HP -OWS
15HP -OWS
Transporting charges for Submersible pumpset from work shop to Pump House after attending repair works.
5HP -OWS
15HP -OWS
Re-erection of pumpset in the Sump / Well by using tripod set and required Rubber washer and Bolt & Nuts and connecting the power supply cable and delivery pipeline arrangements testing to trial pumping.
5HP -OWS
15HP -OWS
SUPPLY AND DELIVERY OF SERVICE CONNECTION ACCESSORIES L.T. 1100V PVC ALUMINIUM ARMOURED UNDER GROUND CABLE WITH ISI MARK
25 Sq.mm 3.5 Core
35 Sq.mm 3.5 Core
50 Sq.mm 3.5 Core
SUPPLY AND DELIVERY OF L.T. CABLES following size sq mm 3 CORE 1.1 KV GRADE ARMOURED ALUMINIUM CONDUCTOR CROSS LINKED POLY ETHYLENE INSULATED PVC SHEATHED CABLES CONFORMING TO IS 7098 (PART I)/1988 WITH ISI MARKING
50 Sq.mm 3 Core
70 Sq.mm 3Core
SUPPLY AND DELIVERY OF PVC INSULATED AND SHEATHED following sq mm 3 CORE FLAT TYPE COPPER CABLE CONFORMING TO IS 694/1989
SUPPLY AND DELIVERY OF 150mm dia Pressure Gauge and Vaccum guage including all accessories as per specification (For Suction and Delivery to be mounted on wall on Teak Wood Board)
Supply, delivey and fixing of MOULDED CASE CIRCUIT BREAKER (MCCB) WITH THERMO MAGNETIC RELEASE - 4 Pole
Range - 63/100A
Range - 125A
Supply, delivey and fixing of RATE FOR MIXED DI-ELECTRIC CAPACITOR WITH TNEB TEST CERTIFICATE WITH ACCESSORIES INCLUDING BANKING CONFORMIING TO IS 2834.
Supply, delivey and fixing of Electro magnetic contactors of suitable capacity in AC Three Phase rating, conforming to IS/IEC 60947-4-1.
Supply, delivey and fixing of Overload Relays: Directly operated Bimetallic Thermal overload relay which operates in case of overload and also in case of under voltage with manual and auto reset mode.
Supply, delivey and fixing of Preventer – Single Phasing - Electric Motor protection device against single phasing. The device should protect the motor against single phasing, reverse phasing and unbalance supply. The device should be suitable for any auxillary device and have provisions for mounting in panel boards. Operate without need of any auxiliary supply.
Electric Motor protection device against dry running. The device should protect the motor against Dry running. The device should be suitable for any auxillary device and have provisions for mounting in panel boards. Operate without need of any auxiliary supply
Supply, delivey and fixing of FUSE UNITS (ANCHOR /EQUIVALENT)
63 Amps Porcelain fuse unit (500 V)
100 Amps Porcelain fuse unit (500 V)
200 Amps Porcelain fuse unit (500 V)
Supply, delivey and fixing of CHANGE OVER SWITCHES
100 Amps three phase 500 V 4 pole Change over switch
Supply, delivey and fixing of PVC INSULATED SINGLE CORE MULTI STRAND FIRE RETARDANT FLEXIBLE COPPER CABLE WITH ISI MARK CONFORMING TO IS
Supply, delivey and fixing of HRC - FUSES - HIGHER END
HRC - 16 Amps
HRC - 32 Amps
HRC - 63 Amps
HRC - 125 Amps
Supply and delivery of the following Electrical Works :consumable items at the site of work to carryout the general maintenace works
Voltmeter Digital - Three Phase Class 1-AC
Ammeter Digital - Three Phase Class 1-1A
20W 4 Feet LED Fitting with LED (Higher end)
LED OUTDOOR FITTINGS (LIGHT EMITTING DIODE) LOWER END 25W LED Street Light Fitting with LED
Supply and delivery of the following consumable items for Pump Set repairs at the site of work to carryout the general maintenace works
50mm GM Gate valve
80mm GM Gate valve
R I Sheet
Bolts and Nuts - All sizes
50mm GI Pipe
80mm GI Pipe
100mm GI pipe
Supply, delivey and fixing of C.I. DOUBLE AIR VALVE AS PER ISI 14845/2000 AND WITH 5 YEARS WARRANTY
50mm CI Air Valve
SUMP CLEANING
Cleaning of all storage points like sumps, elevated reservoirs of various capacities available in this scheme at a frequency of once in two months including scrapping the inner side of compartment completely, scouring / dewatering / desilting using required machineries, materials, labour and all other incidental charges, application of bleaching powder/ solution etc complete.
For 15001 to 30000 lit cap sump
Desilting light or sandysoil or silt from collection well below water level including the charges for special tools & plants and air compressor etc complete
Bleaching powder of 34% concentration as per standard specification.
COMBINED WATER SUPPLY SCHEME TO CHITHAMOOR AND 27 OTHER HABITATIONS IN IN ANAKKAVUR UNION OF TIRUVANNAMALAI DISTRICT
Operation and Maintenance of the Electro Mechanical installations, equipments, components, pipelines valves and appurtenances, water retaining structures including protecton of all schemee components from damages/ theft undertaking legal actions for such untoward incidents, preventive maintenance, disinfection and deliverance of water as per quality standards and supply of earmarked quantity of water to the beneficiaries as per Annexure .........., carrying out the O&M as per standard operating procedures, Acts and rules in force and as directed by TWAD Board Oficers and excluding cost towards attending leak, burst repair and replacement works to electro mechanical installations consumables for disinfection of water, cleaning of all water retaining structure, electricity .
Repair & Renewals and Leak & Bursts :
Attending Leaks in the PVC pipelines of this CWSS for the following items, as per the standard procedure including earthwork excavation, dewatering, removing, relaying, jointing, civil works, cost of materials and all other incidental charges, etc complete within the stipulated time limit as directed by the TWAD Board officers.
PVC 4 KSC Pipes_Minor Leak
63mm OD PVC 4 KSC pipes_Minor Leak
75mm OD PVC 4 KSC pipes_Minor Leak
90mm OD PVC 4 KSC pipes_Minor Leak
110mm OD PVC 4 KSC pipes_Minor Leak
140mm OD PVC 4 KSC pipes_Minor Leak
160mm OD PVC 4 KSC pipes_Minor Leak
PVC 4 KSC Pipes_Major Leak
63mm OD PVC 4 KSC pipes_Major Leak
75mm OD PVC 4 KSC pipes_Major Leak
90mm OD PVC 4 KSC pipes_Major Leak
110mm OD PVC 4 KSC pipes_Major Leak
140mm OD PVC 4 KSC pipes_Major Leak
160mm OD PVC 4 KSC pipes_Major Leak
Attending Leaks/Bursts in the HDPE pipelines of this CWSS for the following items, as per the standard procedure including earthwork excavation, dewatering, removing, relaying, jointing by Electro fusion/butt Joint, civil works, cost of materials and all other incidental charges, etc complete within the stipulated time limit as directed by the TWAD Board officers.
HDPE PN 6 Pipes_Minor Leaks
63mm HDPE PN 6 pipes_Minor Leak
HDPE PN 6 Pipes_Major Leaks
63mm HDPE PN 6 pipes_Major Leak
Attending leaks and bursts in GI pipes of various sizes including Supply and delivery of following G I PIPES (MEDIUM) AS PER IS 1239/PART I/2004 and Lowering GI pipes and specials in the trenches and laying to proper grade and alignment, jointing with GI Specials and as directed by the TWAD Officers
50mm GI Pipe leak above GL
65mm GI Pipe leak above GL
80mm GI Pipe leak above GL
100mm GI Pipe leak above GL
Labour for cutting open B.T. Roads (or) Maccadam road for laying water mains - 15 cm thick (SOR VOL II P.195)
For all size Pumping mains
Road Restoration with PCC 1:2:4 using 20 mm HBGS for the Concrete Road cut Portion after the pipes are laid, joined and tested complete and as directed by TWAD Board Officers - 15 cm thick
For all size Pumping mains
MATERIALS
Supply and delivery of following sizes of HDPE PIPES - PE 100 AS PER IS 4984/2016 (Pre-Compounded Resin) inclusive of transportation charges to stockyard excluding unloading anywhere in Tamilnadu etc, complete and as directed by the TWAD Board officers. (SOR VOL II P.14)
160mm HDPE PN 6
140mm HDPE PN 6
125mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
75mm HDPE PN 6
63mm HDPE PN 6
CIVIL WORKS
Earth work excavation and depositing on bank with initial lead of 10 m and initial lift of 2m in narrow trenches for laying of pipes for water supply in the following types of soil
Hard stiff clay, stiff black cotton, hard red earth, shales, murrum gravel, stoney earth and earth mixed with small size boulders and hard gravelly soil. (SOR VOL II P.192)
160mm HDPE PN 6
140mm HDPE PN 6
125mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
75mm HDPE PN 6
63mm HDPE PN 6
Lowering HDPE pipes and specials to trench and laying to proper grade and alignment and as directed by the TWAD Officers. (SOR VOL II P.171)
160mm HDPE PN 6
140mm HDPE PN 6
125mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
75mm HDPE PN 6
63mm HDPE PN 6
Jointing HDPE Pipes and Specials by butt fusion welding / electro fusion welding joints using fusion equipment as per ISO 21307-2011 and as per IS 7634 (part-2) : 2012 including cost of hire charges for butt fusion equipment power supply arrangements etc., complete as per directed by TWAD Board Officers. (SOR VOL II P.184)
160mm HDPE PN 6
140mm HDPE PN 6
125mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
75mm HDPE PN 6
63mm HDPE PN 6
Refiling with excavated sand or other loose soil complying with standerd specification in layers of 15 cm thick well rammed and consolidated after pipes and specials are laid and tested. (SOR VOL II P.192)
160mm HDPE PN 6
140mm HDPE PN 6
125mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
75mm HDPE PN 6
63mm HDPE PN 6
Pumpsets
Carrying out the following repair works occuring during the maintenance period in the Electrical, Mechanical and Elctro-mechanical items to bring back the scheme / components into normal running conditition as per standard specification including all labour charges, cost of materials and all incidental charges within the stipulated time limit etc., complete as specified in Clause 2.8 of General conditions of Contract Part II etc as directed by TWAD Board officers
Attending the Rewinding, Repair and Renewal works in various capacity Open Well Submersible Pumpsets
Removing the Submersible pumpset by using tripod set after disconnecting the power supply cable and delivery pipe line fittings
3HP -OWS
5HP -OWS
7.5HP -OWS
Transporting the pumpset from Pump House to work shop.
3HP -OWS
5HP -OWS
7.5HP -OWS
Rewinding the submersible motor using best quality winding wire including cost of wire, Sleeve, other insulating and fibre class materials after deducting the cost of old materials.
3HP -OWS
5HP -OWS
7.5HP -OWS
Reconditioning the worn-out shaft and fittings, impeller and Gun Metal/ SS Bushes including cost of lath work & labour charges etc.,
3HP -OWS
5HP -OWS
7.5HP -OWS
Replacement of carbon type thrust bearing and pumpside Gun Metal Bush including cost of labour charges after deducting the cost of old material
3HP -OWS
5HP -OWS
7.5HP -OWS
Transporting charges for Submersible pumpset from work shop to Pump House after attending repair works.
3HP -OWS
5HP -OWS
7.5HP -OWS
Re-erection of pumpset in the Sump / Well by using tripod set and required Rubber washer and Bolt & Nuts and connecting the power supply cable and delivery pipeline arrangements testing to trial pumping.
3HP -OWS
5HP -OWS
7.5HP -OWS
SUPPLY AND DELIVERY OF SERVICE CONNECTION ACCESSORIES L.T. 1100V PVC ALUMINIUM ARMOURED UNDER GROUND CABLE WITH ISI MARK
25 Sq.mm 3.5 Core
35 Sq.mm 3.5 Core
50 Sq.mm 3.5 Core
SUPPLY AND DELIVERY OF L.T. CABLES following size sq mm 3 CORE 1.1 KV GRADE ARMOURED ALUMINIUM CONDUCTOR CROSS LINKED POLY ETHYLENE INSULATED PVC SHEATHED CABLES CONFORMING TO IS 7098 (PART I)/1988 WITH ISI MARKING
35 Sq.mm 3 Core
SUPPLY AND DELIVERY OF PVC INSULATED AND SHEATHED following sq mm 3 CORE FLAT TYPE COPPER CABLE CONFORMING TO IS 694/1989
SUPPLY AND DELIVERY OF 150mm dia Pressure Gauge and Vaccum guage including all accessories as per specification (For Suction and Delivery to be mounted on wall on Teak Wood Board)
Supply, delivey and fixing of MOULDED CASE CIRCUIT BREAKER (MCCB) WITH THERMO MAGNETIC RELEASE - 4 Pole
Range - 63/100A
Range - 125A
Supply, delivey and fixing of RATE FOR MIXED DI-ELECTRIC CAPACITOR WITH TNEB TEST CERTIFICATE WITH ACCESSORIES INCLUDING BANKING CONFORMIING TO IS 2834.
Supply, delivey and fixing of Electro magnetic contactors of suitable capacity in AC Three Phase rating, conforming to IS/IEC 60947-4-1.
Supply, delivey and fixing of Overload Relays: Directly operated Bimetallic Thermal overload relay which operates in case of overload and also in case of under voltage with manual and auto reset mode.
Supply, delivey and fixing of Preventer – Single Phasing - Electric Motor protection device against single phasing. The device should protect the motor against single phasing, reverse phasing and unbalance supply. The device should be suitable for any auxillary device and have provisions for mounting in panel boards. Operate without need of any auxiliary supply.
Electric Motor protection device against dry running. The device should protect the motor against Dry running. The device should be suitable for any auxillary device and have provisions for mounting in panel boards. Operate without need of any auxiliary supply
Supply, delivey and fixing of FUSE UNITS (ANCHOR /EQUIVALENT)
63 Amps Porcelain fuse unit (500 V)
100 Amps Porcelain fuse unit (500 V)
200 Amps Porcelain fuse unit (500 V)
Supply, delivey and fixing of CHANGE OVER SWITCHES
16 Amps three phase 500 V 4 pole Change over switch
32 Amps three phase 500 V 4 pole Change over switch
63 Amps three phase 500 V 4 pole Change over switch
100 Amps three phase 500 V 4 pole Change over switch
Supply, delivey and fixing of PVC INSULATED SINGLE CORE MULTI STRAND FIRE RETARDANT FLEXIBLE COPPER CABLE WITH ISI MARK CONFORMING TO IS
Supply, delivey and fixing of HRC - FUSES - HIGHER END
HRC - 16 Amps
HRC - 32 Amps
HRC - 63 Amps
HRC - 125 Amps
Supply and delivery of the following Electrical Works :consumable items at the site of work to carryout the general maintenace works
Voltmeter Digital - Three Phase Class 1-AC
Ammeter Digital - Three Phase Class 1-1A
20W 4 Feet LED Fitting with LED (Higher end)
LED OUTDOOR FITTINGS (LIGHT EMITTING DIODE) LOWER END 25W LED Street Light Fitting with LED
Supply and delivery of the following consumable items for Pump Set repairs at the site of work to carryout the general maintenace works
50mm GM Gate valve
80mm GM Gate valve
R I Sheet
Bolts and Nuts - All sizes
50mm GI Pipe
65mm GI Pipe
80mm GI Pipe
100mm GI pipe
Supply, delivery and fixing of DI D/F Gate sluice/scour valves (soft seated) resilient seated soft sealing Gate Valves(Sluice Valves) with body Bonnet of Ductile cast iron of Grade GGG 40 or equivalent grade, Wedge fully rubber lined with EPDM replaceable spindle nut without gland packing and with 3 O- Ring protection on the shaft and seals of NBR and the valves should be of Vacuum tight and 100% leak proof with face to face dimensions as per BS 5163- 89/ISI 14846-2000/DIN 3202 F4. All the valves should be with electrostatic powder coating both inside and out side with pocket less straight through body passage. All the valves are to be compatible for buried application with pressure rating PN 10/16 and with 5 years warranty.
100mm DI Gate Valve
Supply, delivey and fixing of C.I. DOUBLE AIR VALVE AS PER ISI 14845/2000 AND WITH 5 YEARS WARRANTY
50mm CI Air Valve
SUMP CLEANING
Cleaning of all storage points like sumps, elevated reservoirs of various capacities available in this scheme at a frequency of once in two months including scrapping the inner side of compartment completely, scouring / dewatering / desilting using required machineries, materials, labour and all other incidental charges, application of bleaching powder/ solution etc complete.
For 30001 to 45000 lit cap sump
For 125001 to 150000 lit cap sump
Desilting light or sandysoil or silt from collection well below water level including the charges for special tools & plants and air compressor etc complete
Bleaching powder of 34% concentration as per standard specification.
COMBINED WATER SUPPLY SCHEME TO ERAIYUR AND 10 OTHER HABITATIONS IN CHEYYAR UNION OF TIRUVANNAMALAI DISTRICT
Operation and Maintenance of the Electro Mechanical installations, equipments, components, pipelines valves and appurtenances, water retaining structures including protecton of all schemee components from damages/ theft undertaking legal actions for such untoward incidents, preventive maintenance, disinfection and deliverance of water as per quality standards and supply of earmarked quantity of water to the beneficiaries as per Annexure .........., carrying out the O&M as per standard operating procedures, Acts and rules in force and as directed by TWAD Board Oficers and excluding cost towards attending leak, burst repair and replacement works to electro mechanical installations consumables for disinfection of water, cleaning of all water retaining structure, electricity .
Repair & Renewals and Leak & Bursts :
Attending Leaks in the PVC pipelines of this CWSS for the following items, as per the standard procedure including earthwork excavation, dewatering, removing, relaying, jointing, civil works, cost of materials and all other incidental charges, etc complete within the stipulated time limit as directed by the TWAD Board officers.
PVC 4 KSC Pipes_Minor Leak
90mm OD PVC 4 KSC pipes_Minor Leak
110mm OD PVC 4 KSC pipes_Minor Leak
140mm OD PVC 4 KSC pipes_Minor Leak
PVC 4 KSC Pipes_Major Leak
90mm OD PVC 4 KSC pipes_Major Leak
110mm OD PVC 4 KSC pipes_Major Leak
140mm OD PVC 4 KSC pipes_Major Leak
Attending Leaks/Bursts in the HDPE pipelines of this CWSS for the following items, as per the standard procedure including earthwork excavation, dewatering, removing, relaying, jointing by Electro fusion/butt Joint, civil works, cost of materials and all other incidental charges, etc complete within the stipulated time limit as directed by the TWAD Board officers.
HDPE PN 6 Pipes_Minor Leaks
90mm HDPE PN 6 pipes_Minor Leak
HDPE PN 6 Pipes_Major Leaks
90mm HDPE PN 6 pipes_Major Leak
Attending leaks and bursts in GI pipes of various sizes including Supply and delivery of following G I PIPES (MEDIUM) AS PER IS 1239/PART I/2004 and Lowering GI pipes and specials in the trenches and laying to proper grade and alignment, jointing with GI Specials and as directed by the TWAD Officers
50mm GI Pipe leak above GL
80mm GI Pipe leak above GL
100mm GI Pipe leak above GL
Labour for cutting open B.T. Roads (or) Maccadam road for laying water mains - 15 cm thick (SOR VOL II P.195)
For all size Pumping mains
Road Restoration with PCC 1:2:4 using 20 mm HBGS for the Concrete Road cut Portion after the pipes are laid, joined and tested complete and as directed by TWAD Board Officers - 15 cm thick
For all size Pumping mains
MATERIALS
Supply and delivery of following sizes of HDPE PIPES - PE 100 AS PER IS 4984/2016 (Pre-Compounded Resin) inclusive of transportation charges to stockyard excluding unloading anywhere in Tamilnadu etc, complete and as directed by the TWAD Board officers. (SOR VOL II P.14)
140mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
CIVIL WORKS
Earth work excavation and depositing on bank with initial lead of 10 m and initial lift of 2m in narrow trenches for laying of pipes for water supply in the following types of soil
Hard stiff clay, stiff black cotton, hard red earth, shales, murrum gravel, stoney earth and earth mixed with small size boulders and hard gravelly soil. (SOR VOL II P.192)
140mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
Lowering HDPE pipes and specials to trench and laying to proper grade and alignment and as directed by the TWAD Officers. (SOR VOL II P.171)
140mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
Jointing HDPE Pipes and Specials by butt fusion welding / electro fusion welding joints using fusion equipment as per ISO 21307-2011 and as per IS 7634 (part-2) : 2012 including cost of hire charges for butt fusion equipment power supply arrangements etc., complete as per directed by TWAD Board Officers. (SOR VOL II P.184)
140mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
Refiling with excavated sand or other loose soil complying with standerd specification in layers of 15 cm thick well rammed and consolidated after pipes and specials are laid and tested. (SOR VOL II P.192)
140mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
Pumpsets
Carrying out the following repair works occuring during the maintenance period in the Electrical, Mechanical and Elctro-mechanical items to bring back the scheme / components into normal running conditition as per standard specification including all labour charges, cost of materials and all incidental charges within the stipulated time limit etc., complete as specified in Clause 2.8 of General conditions of Contract Part II etc as directed by TWAD Board officers
Attending the Rewinding, Repair and Renewal works in various capacity Open Well Submersible Pumpsets
Removing the Submersible pumpset by using tripod set after disconnecting the power supply cable and delivery pipe line fittings
3HP -OWS
5HP -OWS
15HP -OWS
Transporting the pumpset from Pump House to work shop.
3HP -OWS
5HP -OWS
15HP -OWS
Rewinding the submersible motor using best quality winding wire including cost of wire, Sleeve, other insulating and fibre class materials after deducting the cost of old materials.
3HP -OWS
5HP -OWS
15HP -OWS
Reconditioning the worn-out shaft and fittings, impeller and Gun Metal/ SS Bushes including cost of lath work & labour charges etc.,
3HP -OWS
5HP -OWS
15HP -OWS
Replacement of carbon type thrust bearing and pumpside Gun Metal Bush including cost of labour charges after deducting the cost of old material
3HP -OWS
5HP -OWS
15HP -OWS
Transporting charges for Submersible pumpset from work shop to Pump House after attending repair works.
3HP -OWS
5HP -OWS
15HP -OWS
Re-erection of pumpset in the Sump / Well by using tripod set and required Rubber washer and Bolt & Nuts and connecting the power supply cable and delivery pipeline arrangements testing to trial pumping.
3HP -OWS
5HP -OWS
15HP -OWS
SUPPLY AND DELIVERY OF SERVICE CONNECTION ACCESSORIES L.T. 1100V PVC ALUMINIUM ARMOURED UNDER GROUND CABLE WITH ISI MARK
25 Sq.mm 3.5 Core
35 Sq.mm 3.5 Core
50 Sq.mm 3.5 Core
SUPPLY AND DELIVERY OF L.T. CABLES following size sq mm 3 CORE 1.1 KV GRADE ARMOURED ALUMINIUM CONDUCTOR CROSS LINKED POLY ETHYLENE INSULATED PVC SHEATHED CABLES CONFORMING TO IS 7098 (PART I)/1988 WITH ISI MARKING
25 Sq.mm 3 Core
35 Sq.mm 3 Core
70 Sq.mm 3Core
SUPPLY AND DELIVERY OF PVC INSULATED AND SHEATHED following sq mm 3 CORE FLAT TYPE COPPER CABLE CONFORMING TO IS 694/1989
SUPPLY AND DELIVERY OF 150mm dia Pressure Gauge and Vaccum guage including all accessories as per specification (For Suction and Delivery to be mounted on wall on Teak Wood Board)
Supply, delivey and fixing of MOULDED CASE CIRCUIT BREAKER (MCCB) WITH THERMO MAGNETIC RELEASE - 4 Pole
Range - 63/100A
Range - 125A
Supply, delivey and fixing of RATE FOR MIXED DI-ELECTRIC CAPACITOR WITH TNEB TEST CERTIFICATE WITH ACCESSORIES INCLUDING BANKING CONFORMIING TO IS 2834.
Supply, delivey and fixing of Electro magnetic contactors of suitable capacity in AC Three Phase rating, conforming to IS/IEC 60947-4-1.
Supply, delivey and fixing of Overload Relays: Directly operated Bimetallic Thermal overload relay which operates in case of overload and also in case of under voltage with manual and auto reset mode.
Supply, delivey and fixing of Preventer – Single Phasing - Electric Motor protection device against single phasing. The device should protect the motor against single phasing, reverse phasing and unbalance supply. The device should be suitable for any auxillary device and have provisions for mounting in panel boards. Operate without need of any auxiliary supply.
Electric Motor protection device against dry running. The device should protect the motor against Dry running. The device should be suitable for any auxillary device and have provisions for mounting in panel boards. Operate without need of any auxiliary supply
Supply, delivey and fixing of FUSE UNITS (ANCHOR /EQUIVALENT)
100 Amps Porcelain fuse unit (500 V)
200 Amps Porcelain fuse unit (500 V)
Supply, delivey and fixing of CHANGE OVER SWITCHES
32 Amps three phase 500 V 4 pole Change over switch
63 Amps three phase 500 V 4 pole Change over switch
100 Amps three phase 500 V 4 pole Change over switch
200 Amps three phase 500 V 4 pole Change over switch
Supply, delivey and fixing of PVC INSULATED SINGLE CORE MULTI STRAND FIRE RETARDANT FLEXIBLE COPPER CABLE WITH ISI MARK CONFORMING TO IS
Supply, delivey and fixing of HRC - FUSES - HIGHER END
HRC - 16 Amps
HRC - 32 Amps
HRC - 63 Amps
HRC - 125 Amps
Supply and delivery of the following Electrical Works :consumable items at the site of work to carryout the general maintenace works
Voltmeter Digital - Three Phase Class 1-AC
Ammeter Digital - Three Phase Class 1-1A
20W 4 Feet LED Fitting with LED (Higher end)
LED OUTDOOR FITTINGS (LIGHT EMITTING DIODE) LOWER END 25W LED Street Light Fitting with LED
Supply and delivery of the following consumable items for Pump Set repairs at the site of work to carryout the general maintenace works
50mm GM Gate valve
80mm GM Gate valve
R I Sheet
Bolts and Nuts - All sizes
50mm GI Pipe
80mm GI Pipe
100mm GI pipe
Supply, delivery and fixing of DI D/F Gate sluice/scour valves (soft seated) resilient seated soft sealing Gate Valves(Sluice Valves) with body Bonnet of Ductile cast iron of Grade GGG 40 or equivalent grade, Wedge fully rubber lined with EPDM replaceable spindle nut without gland packing and with 3 O- Ring protection on the shaft and seals of NBR and the valves should be of Vacuum tight and 100% leak proof with face to face dimensions as per BS 5163- 89/ISI 14846-2000/DIN 3202 F4. All the valves should be with electrostatic powder coating both inside and out side with pocket less straight through body passage. All the valves are to be compatible for buried application with pressure rating PN 10/16 and with 5 years warranty.
100mm DI Gate Valve
Supply, delivey and fixing of C.I. DOUBLE AIR VALVE AS PER ISI 14845/2000 AND WITH 5 YEARS WARRANTY
50mm CI Air Valve
SUMP CLEANING
Cleaning of all storage points like sumps, elevated reservoirs of various capacities available in this scheme at a frequency of once in two months including scrapping the inner side of compartment completely, scouring / dewatering / desilting using required machineries, materials, labour and all other incidental charges, application of bleaching powder/ solution etc complete.
For 5000 to 15000 lit cap sump
For 30001 to 45000 lit cap sump
Desilting light or sandysoil or silt from collection well below water level including the charges for special tools & plants and air compressor etc complete
Bleaching powder of 34% concentration as per standard specification.
COMBINED WATER SUPPLY SCHEME TO KAZHIYUR AND 17 OTHER HABITATIONS IN CHEYYAR UNION OF TIRUVANNAMALAI DISTRICT
Operation and Maintenance of the Electro Mechanical installations, equipments, components, pipelines valves and appurtenances, water retaining structures including protecton of all schemee components from damages/ theft undertaking legal actions for such untoward incidents, preventive maintenance, disinfection and deliverance of water as per quality standards and supply of earmarked quantity of water to the beneficiaries as per Annexure .........., carrying out the O&M as per standard operating procedures, Acts and rules in force and as directed by TWAD Board Oficers and excluding cost towards attending leak, burst repair and replacement works to electro mechanical installations consumables for disinfection of water, cleaning of all water retaining structure, electricity .
Repair & Renewals and Leak & Bursts :
Attending Leaks in the PVC pipelines of this CWSS for the following items, as per the standard procedure including earthwork excavation, dewatering, removing, relaying, jointing, civil works, cost of materials and all other incidental charges, etc complete within the stipulated time limit as directed by the TWAD Board officers.
PVC 4 KSC Pipes_Minor Leak
63mm OD PVC 4 KSC pipes_Minor Leak
75mm OD PVC 4 KSC pipes_Minor Leak
90mm OD PVC 4 KSC pipes_Minor Leak
110mm OD PVC 4 KSC pipes_Minor Leak
140mm OD PVC 4 KSC pipes_Minor Leak
PVC 4 KSC Pipes_Major Leak
63mm OD PVC 4 KSC pipes_Major Leak
75mm OD PVC 4 KSC pipes_Major Leak
90mm OD PVC 4 KSC pipes_Major Leak
110mm OD PVC 4 KSC pipes_Major Leak
140mm OD PVC 4 KSC pipes_Major Leak
Attending Leaks/Bursts in the HDPE pipelines of this CWSS for the following items, as per the standard procedure including earthwork excavation, dewatering, removing, relaying, jointing by Electro fusion/butt Joint, civil works, cost of materials and all other incidental charges, etc complete within the stipulated time limit as directed by the TWAD Board officers.
HDPE PN 6 Pipes_Minor Leaks
75mm HDPE PN 6 pipes_Minor Leak
140mm HDPE PN 6 pipes_Minor Leak
160mm HDPE PN 6 pipes_Minor Leak
HDPE PN 6 Pipes_Major Leaks
75mm HDPE PN 6 pipes_Major Leak
140mm HDPE PN 6 pipes_Major Leak
160mm HDPE PN 6 pipes_Major Leak
Attending leaks and bursts in GI pipes of various sizes including Supply and delivery of following G I PIPES (MEDIUM) AS PER IS 1239/PART I/2004 and Lowering GI pipes and specials in the trenches and laying to proper grade and alignment, jointing with GI Specials and as directed by the TWAD Officers
50mm GI Pipe leak above GL
65mm GI Pipe leak above GL
80mm GI Pipe leak above GL
100mm GI Pipe leak above GL
Attending joint (Collar) Leaks in the AC pipelines of this CWSS for the following items, as per the standard procedure including earthwork excavation, dewatering, removing, relaying, jointing, civil works, cost of materials and all incidental charges, etc complete within the stipulated time limit as specified in Clause 2.6.4 of General conditions of Contract
AC Pipe_Collar Leak
150mm AC_Collar Leak
AC Pipe_Minor Leak centre crack
150mm AC Pipe_MS Cut Barrel
Labour for cutting open B.T. Roads (or) Maccadam road for laying water mains - 15 cm thick (SOR VOL II P.195)
For all size Pumping mains
Road Restoration with PCC 1:2:4 using 20 mm HBGS for the Concrete Road cut Portion after the pipes are laid, joined and tested complete and as directed by TWAD Board Officers - 15 cm thick
For all size Pumping mains
MATERIALS
Supply and delivery of following sizes of HDPE PIPES - PE 100 AS PER IS 4984/2016 (Pre-Compounded Resin) inclusive of transportation charges to stockyard excluding unloading anywhere in Tamilnadu etc, complete and as directed by the TWAD Board officers. (SOR VOL II P.14)
160mm HDPE PN 6
140mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
75mm HDPE PN 6
63mm HDPE PN 6
CIVIL WORKS
Earth work excavation and depositing on bank with initial lead of 10 m and initial lift of 2m in narrow trenches for laying of pipes for water supply in the following types of soil
Hard stiff clay, stiff black cotton, hard red earth, shales, murrum gravel, stoney earth and earth mixed with small size boulders and hard gravelly soil. (SOR VOL II P.192)
160mm HDPE PN 6
140mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
75mm HDPE PN 6
63mm HDPE PN 6
Lowering HDPE pipes and specials to trench and laying to proper grade and alignment and as directed by the TWAD Officers. (SOR VOL II P.171)
160mm HDPE PN 6
140mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
75mm HDPE PN 6
63mm HDPE PN 6
Jointing HDPE Pipes and Specials by butt fusion welding / electro fusion welding joints using fusion equipment as per ISO 21307-2011 and as per IS 7634 (part-2) : 2012 including cost of hire charges for butt fusion equipment power supply arrangements etc., complete as per directed by TWAD Board Officers. (SOR VOL II P.184)
160mm HDPE PN 6
140mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
75mm HDPE PN 6
63mm HDPE PN 6
Refiling with excavated sand or other loose soil complying with standerd specification in layers of 15 cm thick well rammed and consolidated after pipes and specials are laid and tested. (SOR VOL II P.192)
160mm HDPE PN 6
140mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
75mm HDPE PN 6
63mm HDPE PN 6
Pumpsets
Carrying out the following repair works occuring during the maintenance period in the Electrical, Mechanical and Elctro-mechanical items to bring back the scheme / components into normal running conditition as per standard specification including all labour charges, cost of materials and all incidental charges within the stipulated time limit etc., complete as specified in Clause 2.8 of General conditions of Contract Part II etc as directed by TWAD Board officers
Attending the Rewinding, Repair and Renewal works in various capacity Open Well Submersible Pumpsets
Removing the Submersible pumpset by using tripod set after disconnecting the power supply cable and delivery pipe line fittings
3HP -OWS
10HP -OWS
20HP -OWS
Transporting the pumpset from Pump House to work shop.
3HP -OWS
10HP -OWS
20HP -OWS
Rewinding the submersible motor using best quality winding wire including cost of wire, Sleeve, other insulating and fibre class materials after deducting the cost of old materials.
3HP -OWS
10HP -OWS
20HP -OWS
Reconditioning the worn-out shaft and fittings, impeller and Gun Metal/ SS Bushes including cost of lath work & labour charges etc.,
3HP -OWS
10HP -OWS
20HP -OWS
Replacement of carbon type thrust bearing and pumpside Gun Metal Bush including cost of labour charges after deducting the cost of old material
3HP -OWS
10HP -OWS
20HP -OWS
Transporting charges for Submersible pumpset from work shop to Pump House after attending repair works.
3HP -OWS
10HP -OWS
20HP -OWS
Re-erection of pumpset in the Sump / Well by using tripod set and required Rubber washer and Bolt & Nuts and connecting the power supply cable and delivery pipeline arrangements testing to trial pumping.
3HP -OWS
10HP -OWS
20HP -OWS
SUPPLY AND DELIVERY OF SERVICE CONNECTION ACCESSORIES L.T. 1100V PVC ALUMINIUM ARMOURED UNDER GROUND CABLE WITH ISI MARK
25 Sq.mm 3.5 Core
35 Sq.mm 3.5 Core
50 Sq.mm 3.5 Core
SUPPLY AND DELIVERY OF L.T. CABLES following size sq mm 3 CORE 1.1 KV GRADE ARMOURED ALUMINIUM CONDUCTOR CROSS LINKED POLY ETHYLENE INSULATED PVC SHEATHED CABLES CONFORMING TO IS 7098 (PART I)/1988 WITH ISI MARKING
25 Sq.mm 3 Core
50 Sq.mm 3 Core
SUPPLY AND DELIVERY OF PVC INSULATED AND SHEATHED following sq mm 3 CORE FLAT TYPE COPPER CABLE CONFORMING TO IS 694/1989
SUPPLY AND DELIVERY OF 150mm dia Pressure Gauge and Vaccum guage including all accessories as per specification (For Suction and Delivery to be mounted on wall on Teak Wood Board)
Supply, delivey and fixing of MOULDED CASE CIRCUIT BREAKER (MCCB) WITH THERMO MAGNETIC RELEASE - 4 Pole
Range - 63/100A
Range - 125A
Supply, delivey and fixing of RATE FOR MIXED DI-ELECTRIC CAPACITOR WITH TNEB TEST CERTIFICATE WITH ACCESSORIES INCLUDING BANKING CONFORMIING TO IS 2834.
Supply, delivey and fixing of Electro magnetic contactors of suitable capacity in AC Three Phase rating, conforming to IS/IEC 60947-4-1.
Supply, delivey and fixing of Overload Relays: Directly operated Bimetallic Thermal overload relay which operates in case of overload and also in case of under voltage with manual and auto reset mode.
Supply, delivey and fixing of Preventer – Single Phasing - Electric Motor protection device against single phasing. The device should protect the motor against single phasing, reverse phasing and unbalance supply. The device should be suitable for any auxillary device and have provisions for mounting in panel boards. Operate without need of any auxiliary supply.
Electric Motor protection device against dry running. The device should protect the motor against Dry running. The device should be suitable for any auxillary device and have provisions for mounting in panel boards. Operate without need of any auxiliary supply
Supply, delivey and fixing of FUSE UNITS (ANCHOR /EQUIVALENT)
63 Amps Porcelain fuse unit (500 V)
100 Amps Porcelain fuse unit (500 V)
200 Amps Porcelain fuse unit (500 V)
Supply, delivey and fixing of CHANGE OVER SWITCHES
100 Amps three phase 500 V 4 pole Change over switch
Supply, delivey and fixing of PVC INSULATED SINGLE CORE MULTI STRAND FIRE RETARDANT FLEXIBLE COPPER CABLE WITH ISI MARK CONFORMING TO IS
Supply, delivey and fixing of HRC - FUSES - HIGHER END
HRC - 16 Amps
HRC - 32 Amps
HRC - 63 Amps
HRC - 125 Amps
Supply and delivery of the following Electrical Works :consumable items at the site of work to carryout the general maintenace works
Voltmeter Digital - Three Phase Class 1-AC
Ammeter Digital - Three Phase Class 1-1A
20W 4 Feet LED Fitting with LED (Higher end)
LED OUTDOOR FITTINGS (LIGHT EMITTING DIODE) LOWER END 25W LED Street Light Fitting with LED
Supply and delivery of the following consumable items for Pump Set repairs at the site of work to carryout the general maintenace works
50mm GM Gate valve
80mm GM Gate valve
R I Sheet
Bolts and Nuts - All sizes
50mm GI Pipe
80mm GI Pipe
100mm GI pipe
Supply, delivery and fixing of DI D/F Gate sluice/scour valves (soft seated) resilient seated soft sealing Gate Valves(Sluice Valves) with body Bonnet of Ductile cast iron of Grade GGG 40 or equivalent grade, Wedge fully rubber lined with EPDM replaceable spindle nut without gland packing and with 3 O- Ring protection on the shaft and seals of NBR and the valves should be of Vacuum tight and 100% leak proof with face to face dimensions as per BS 5163- 89/ISI 14846-2000/DIN 3202 F4. All the valves should be with electrostatic powder coating both inside and out side with pocket less straight through body passage. All the valves are to be compatible for buried application with pressure rating PN 10/16 and with 5 years warranty.
100mm DI Gate Valve
Supply, delivey and fixing of C.I. DOUBLE AIR VALVE AS PER ISI 14845/2000 AND WITH 5 YEARS WARRANTY
50mm CI Air Valve
SUMP CLEANING
Cleaning of all storage points like sumps, elevated reservoirs of various capacities available in this scheme at a frequency of once in two months including scrapping the inner side of compartment completely, scouring / dewatering / desilting using required machineries, materials, labour and all other incidental charges, application of bleaching powder/ solution etc complete.
For 5000 to 15000 lit cap sump
For 15001 to 30000 lit cap sump
Desilting light or sandysoil or silt from collection well below water level including the charges for special tools & plants and air compressor etc complete
Bleaching powder of 34% concentration as per standard specification.
COMBINED WATER SUPPLY SCHEME TO MENALUR H AND 10 OTHER HABITATIONS IN VEMBAKKAM UNION OF TIRUVANNAMALAI DISTRICT
Operation and Maintenance of the Electro Mechanical installations, equipments, components, pipelines valves and appurtenances, water retaining structures including protecton of all schemee components from damages/ theft undertaking legal actions for such untoward incidents, preventive maintenance, disinfection and deliverance of water as per quality standards and supply of earmarked quantity of water to the beneficiaries as per Annexure .........., carrying out the O&M as per standard operating procedures, Acts and rules in force and as directed by TWAD Board Oficers and excluding cost towards attending leak, burst repair and replacement works to electro mechanical installations consumables for disinfection of water, cleaning of all water retaining structure, electricity .
Repair & Renewals and Leak & Bursts :
Attending Leaks in the PVC pipelines of this CWSS for the following items, as per the standard procedure including earthwork excavation, dewatering, removing, relaying, jointing, civil works, cost of materials and all other incidental charges, etc complete within the stipulated time limit as directed by the TWAD Board officers.
PVC 4 KSC Pipes_Minor Leak
90mm OD PVC 4 KSC pipes_Minor Leak
110mm OD PVC 4 KSC pipes_Minor Leak
160mm OD PVC 4 KSC pipes_Minor Leak
PVC 4 KSC Pipes_Major Leak
90mm OD PVC 4 KSC pipes_Major Leak
110mm OD PVC 4 KSC pipes_Major Leak
160mm OD PVC 4 KSC pipes_Major Leak
PVC 6 KSC Pipes_Minor Leak
90mm OD PVC 6 KSC pipes_Minor Leak
110mm OD PVC 6 KSC pipes_Minor Leak
160mm OD PVC 6 KSC pipes_Minor Leak
PVC 6 KSC Pipes_Major Leak
90mm OD PVC 6 KSC pipes_Major Leak
110mm OD PVC 6 KSC pipes_Major Leak
160mm OD PVC 6 KSC pipes_Major Leak
Attending Leaks/Bursts in the HDPE pipelines of this CWSS for the following items, as per the standard procedure including earthwork excavation, dewatering, removing, relaying, jointing by Electro fusion/butt Joint, civil works, cost of materials and all other incidental charges, etc complete within the stipulated time limit as directed by the TWAD Board officers.
HDPE PN 6 Pipes_Minor Leaks
90mm HDPE PN 6 pipes_Minor Leak
160mm HDPE PN 6 pipes_Minor Leak
HDPE PN 6 Pipes_Major Leaks
90mm HDPE PN 6 pipes_Major Leak
160mm HDPE PN 6 pipes_Major Leak
Attending leaks and bursts in GI pipes of various sizes including Supply and delivery of following G I PIPES (MEDIUM) AS PER IS 1239/PART I/2004 and Lowering GI pipes and specials in the trenches and laying to proper grade and alignment, jointing with GI Specials and as directed by the TWAD Officers
50mm GI Pipe leak above GL
65mm GI Pipe leak above GL
80mm GI Pipe leak above GL
100mm GI Pipe leak above GL
125mm GI Pipe leak above GL
150mm GI Pipe leak above GL
Attending joint (Collar) Leaks in the AC pipelines of this CWSS for the following items, as per the standard procedure including earthwork excavation, dewatering, removing, relaying, jointing, civil works, cost of materials and all incidental charges, etc complete within the stipulated time limit as specified in Clause 2.6.4 of General conditions of Contract
AC Pipe_Collar Leak
150mm AC_Collar Leak
AC Pipe_Minor Leak centre crack
150mm AC Pipe_MS Cut Barrel
Attending Leaks/Bursts in the DI pipelines of this CWSS for the following items, as per the standard procedure including earthwork excavation, dewatering, removing, relaying, jointing, civil works, cost of materials and all incidental charges, etc complete within the stipulated time limit as specified in Clause 2.6.4 of General conditions of Contract
DI Pipes_Minor Leak
150mm DI pipes - Minor leak
DI Pipes_Major Leak
150mm DI pipes - Major leak
Labour for cutting open B.T. Roads (or) Maccadam road for laying water mains - 15 cm thick (SOR VOL II P.195)
For all size Pumping mains
Road Restoration with PCC 1:2:4 using 20 mm HBGS for the Concrete Road cut Portion after the pipes are laid, joined and tested complete and as directed by TWAD Board Officers - 15 cm thick
For all size Pumping mains
MATERIALS
Supply and delivery of following sizes of HDPE PIPES - PE 100 AS PER IS 4984/2016 (Pre-Compounded Resin) inclusive of transportation charges to stockyard excluding unloading anywhere in Tamilnadu etc, complete and as directed by the TWAD Board officers. (SOR VOL II P.14)
160mm HDPE PN 6
125mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
CIVIL WORKS
Earth work excavation and depositing on bank with initial lead of 10 m and initial lift of 2m in narrow trenches for laying of pipes for water supply in the following types of soil
Hard stiff clay, stiff black cotton, hard red earth, shales, murrum gravel, stoney earth and earth mixed with small size boulders and hard gravelly soil. (SOR VOL II P.192)
160mm HDPE PN 6
140mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
Lowering HDPE pipes and specials to trench and laying to proper grade and alignment and as directed by the TWAD Officers. (SOR VOL II P.171)
160mm HDPE PN 6
125mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
Jointing HDPE Pipes and Specials by butt fusion welding / electro fusion welding joints using fusion equipment as per ISO 21307-2011 and as per IS 7634 (part-2) : 2012 including cost of hire charges for butt fusion equipment power supply arrangements etc., complete as per directed by TWAD Board Officers. (SOR VOL II P.184)
160mm HDPE PN 6
125mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
Refiling with excavated sand or other loose soil complying with standerd specification in layers of 15 cm thick well rammed and consolidated after pipes and specials are laid and tested. (SOR VOL II P.192)
160mm HDPE PN 6
125mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
Pumpsets
Carrying out the following repair works occuring during the maintenance period in the Electrical, Mechanical and Elctro-mechanical items to bring back the scheme / components into normal running conditition as per standard specification including all labour charges, cost of materials and all incidental charges within the stipulated time limit etc., complete as specified in Clause 2.8 of General conditions of Contract Part II etc as directed by TWAD Board officers
Attending the Rewinding, Repair and Renewal works in various capacity Open Well Submersible Pumpsets
Removing the Submersible pumpset by using tripod set after disconnecting the power supply cable and delivery pipe line fittings
3HP -OWS
5HP -OWS
7.5HP -OWS
10HP -OWS
12.50HP -OWS
Transporting the pumpset from Pump House to work shop.
3HP -OWS
5HP -OWS
7.5HP -OWS
10HP -OWS
12.50HP -OWS
Rewinding the submersible motor using best quality winding wire including cost of wire, Sleeve, other insulating and fibre class materials after deducting the cost of old materials.
3HP -OWS
5HP -OWS
7.5HP -OWS
10HP -OWS
12.50HP -OWS
Reconditioning the worn-out shaft and fittings, impeller and Gun Metal/ SS Bushes including cost of lath work & labour charges etc.,
3HP -OWS
5HP -OWS
7.5HP -OWS
10HP -OWS
12.50HP -OWS
Replacement of carbon type thrust bearing and pumpside Gun Metal Bush including cost of labour charges after deducting the cost of old material
3HP -OWS
5HP -OWS
7.5HP -OWS
10HP -OWS
12.50HP -OWS
Transporting charges for Submersible pumpset from work shop to Pump House after attending repair works.
3HP -OWS
5HP -OWS
7.5HP -OWS
10HP -OWS
12.50HP -OWS
Re-erection of pumpset in the Sump / Well by using tripod set and required Rubber washer and Bolt & Nuts and connecting the power supply cable and delivery pipeline arrangements testing to trial pumping.
3HP -OWS
5HP -OWS
7.5HP -OWS
10HP -OWS
12.50HP -OWS
SUPPLY AND DELIVERY OF SERVICE CONNECTION ACCESSORIES L.T. 1100V PVC ALUMINIUM ARMOURED UNDER GROUND CABLE WITH ISI MARK
25 Sq.mm 3.5 Core
35 Sq.mm 3.5 Core
50 Sq.mm 3.5 Core
SUPPLY AND DELIVERY OF L.T. CABLES following size sq mm 3 CORE 1.1 KV GRADE ARMOURED ALUMINIUM CONDUCTOR CROSS LINKED POLY ETHYLENE INSULATED PVC SHEATHED CABLES CONFORMING TO IS 7098 (PART I)/1988 WITH ISI MARKING
50 Sq.mm 3 Core
SUPPLY AND DELIVERY OF PVC INSULATED AND SHEATHED following sq mm 3 CORE FLAT TYPE COPPER CABLE CONFORMING TO IS 694/1989
SUPPLY AND DELIVERY OF 150mm dia Pressure Gauge and Vaccum guage including all accessories as per specification (For Suction and Delivery to be mounted on wall on Teak Wood Board)
Supply, delivey and fixing of MOULDED CASE CIRCUIT BREAKER (MCCB) WITH THERMO MAGNETIC RELEASE - 4 Pole
Range - 63/100A
Supply, delivey and fixing of RATE FOR MIXED DI-ELECTRIC CAPACITOR WITH TNEB TEST CERTIFICATE WITH ACCESSORIES INCLUDING BANKING CONFORMIING TO IS 2834.
Supply, delivey and fixing of Electro magnetic contactors of suitable capacity in AC Three Phase rating, conforming to IS/IEC 60947-4-1.
Supply, delivey and fixing of Overload Relays: Directly operated Bimetallic Thermal overload relay which operates in case of overload and also in case of under voltage with manual and auto reset mode.
Supply, delivey and fixing of Preventer – Single Phasing - Electric Motor protection device against single phasing. The device should protect the motor against single phasing, reverse phasing and unbalance supply. The device should be suitable for any auxillary device and have provisions for mounting in panel boards. Operate without need of any auxiliary supply.
Electric Motor protection device against dry running. The device should protect the motor against Dry running. The device should be suitable for any auxillary device and have provisions for mounting in panel boards. Operate without need of any auxiliary supply
Supply, delivey and fixing of FUSE UNITS (ANCHOR /EQUIVALENT)
63 Amps Porcelain fuse unit (500 V)
100 Amps Porcelain fuse unit (500 V)
200 Amps Porcelain fuse unit (500 V)
Supply, delivey and fixing of CHANGE OVER SWITCHES
16 Amps three phase 500 V 4 pole Change over switch
32 Amps three phase 500 V 4 pole Change over switch
63 Amps three phase 500 V 4 pole Change over switch
100 Amps three phase 500 V 4 pole Change over switch
Supply, delivey and fixing of PVC INSULATED SINGLE CORE MULTI STRAND FIRE RETARDANT FLEXIBLE COPPER CABLE WITH ISI MARK CONFORMING TO IS
Supply, delivey and fixing of HRC - FUSES - HIGHER END
HRC - 16 Amps
HRC - 32 Amps
HRC - 63 Amps
HRC - 125 Amps
Supply and delivery of the following Electrical Works :consumable items at the site of work to carryout the general maintenace works
Voltmeter Digital - Three Phase Class 1-AC
Ammeter Digital - Three Phase Class 1-1A
20W 4 Feet LED Fitting with LED (Higher end)
LED OUTDOOR FITTINGS (LIGHT EMITTING DIODE) LOWER END 25W LED Street Light Fitting with LED
Supply and delivery of the following consumable items for Pump Set repairs at the site of work to carryout the general maintenace works
50mm GM Gate valve
80mm GM Gate valve
R I Sheet
Bolts and Nuts - All sizes
50mm GI Pipe
80mm GI Pipe
100mm GI pipe
Supply, delivery and fixing of DI D/F Gate sluice/scour valves (soft seated) resilient seated soft sealing Gate Valves(Sluice Valves) with body Bonnet of Ductile cast iron of Grade GGG 40 or equivalent grade, Wedge fully rubber lined with EPDM replaceable spindle nut without gland packing and with 3 O- Ring protection on the shaft and seals of NBR and the valves should be of Vacuum tight and 100% leak proof with face to face dimensions as per BS 5163- 89/ISI 14846-2000/DIN 3202 F4. All the valves should be with electrostatic powder coating both inside and out side with pocket less straight through body passage. All the valves are to be compatible for buried application with pressure rating PN 10/16 and with 5 years warranty.
150mm DI Gate Valve
Supply, delivey and fixing of C.I. DOUBLE AIR VALVE AS PER ISI 14845/2000 AND WITH 5 YEARS WARRANTY
50mm CI Air Valve
SUMP CLEANING
Cleaning of all storage points like sumps, elevated reservoirs of various capacities available in this scheme at a frequency of once in two months including scrapping the inner side of compartment completely, scouring / dewatering / desilting using required machineries, materials, labour and all other incidental charges, application of bleaching powder/ solution etc complete.
For 15001 to 30000 lit cap sump
Desilting light or sandysoil or silt from collection well below water level including the charges for special tools & plants and air compressor etc complete
Provision for replacement of existing pipelines which are damaged due to widening of SH, NH and NHAI Roads and other line departments
MATERIALS
Supply and delivery of following sizes of HDPE PIPES - PE 100 AS PER IS 4984/2016 (Pre-Compounded Resin) inclusive of transportation charges to stockyard excluding unloading anywhere in Tamilnadu etc, complete and as directed by the TWAD Board officers. (SOR VOL II P.14)
160mm HDPE PN 6
125mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
CIVIL WORKS
Earth work excavation and depositing on bank with initial lead of 10 m and initial lift of 2m in narrow trenches for laying of pipes for water supply in the following types of soil
Hard stiff clay, stiff black cotton, hard red earth, shales, murrum gravel, stoney earth and earth mixed with small size boulders and hard gravelly soil. (SOR VOL II P.192)
160mm HDPE PN 6
140mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
Lowering HDPE pipes and specials to trench and laying to proper grade and alignment and as directed by the TWAD Officers. (SOR VOL II P.171)
160mm HDPE PN 6
125mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
Jointing HDPE Pipes and Specials by butt fusion welding / electro fusion welding joints using fusion equipment as per ISO 21307-2011 and as per IS 7634 (part-2) : 2012 including cost of hire charges for butt fusion equipment power supply arrangements etc., complete as per directed by TWAD Board Officers. (SOR VOL II P.184)
160mm HDPE PN 6
125mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
Refiling with excavated sand or other loose soil complying with standerd specification in layers of 15 cm thick well rammed and consolidated after pipes and specials are laid and tested. (SOR VOL II P.192)
160mm HDPE PN 6
125mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
Bleaching powder of 34% concentration as per standard specification.
COMBINED WATER SUPPLY SCHEME TO PARASUR AND 13 OTHER HABITATIONS IN ANAKKAVUR & CHEYYAR UNION OF TIRUVANNAMALAI DISTRICT
Attending Leaks in the PVC pipelines of this CWSS for the following items, as per the standard procedure including earthwork excavation, dewatering, removing, relaying, jointing, civil works, cost of materials and all other incidental charges, etc complete within the stipulated time limit as directed by the TWAD Board officers.
PVC 4 KSC Pipes_Minor Leak
63mm OD PVC 4 KSC pipes_Minor Leak
75mm OD PVC 4 KSC pipes_Minor Leak
90mm OD PVC 4 KSC pipes_Minor Leak
110mm OD PVC 4 KSC pipes_Minor Leak
140mm OD PVC 4 KSC pipes_Minor Leak
160mm OD PVC 4 KSC pipes_Minor Leak
PVC 4 KSC Pipes_Major Leak
63mm OD PVC 4 KSC pipes_Major Leak
75mm OD PVC 4 KSC pipes_Major Leak
90mm OD PVC 4 KSC pipes_Major Leak
110mm OD PVC 4 KSC pipes_Major Leak
140mm OD PVC 4 KSC pipes_Major Leak
160mm OD PVC 4 KSC pipes_Major Leak
Attending Leaks/Bursts in the HDPE pipelines of this CWSS for the following items, as per the standard procedure including earthwork excavation, dewatering, removing, relaying, jointing by Electro fusion/butt Joint, civil works, cost of materials and all other incidental charges, etc complete within the stipulated time limit as directed by the TWAD Board officers.
HDPE PN 6 Pipes_Minor Leaks
90mm HDPE PN 6 pipes_Minor Leak
110mm HDPE PN 6 pipes_Minor Leak
HDPE PN 6 Pipes_Major Leaks
90mm HDPE PN 6 pipes_Major Leak
110mm HDPE PN 6 pipes_Major Leak
Attending leaks and bursts in GI pipes of various sizes including Supply and delivery of following G I PIPES (MEDIUM) AS PER IS 1239/PART I/2004 and Lowering GI pipes and specials in the trenches and laying to proper grade and alignment, jointing with GI Specials and as directed by the TWAD Officers
50mm GI Pipe leak above GL
80mm GI Pipe leak above GL
100mm GI Pipe leak above GL
Labour for cutting open B.T. Roads (or) Maccadam road for laying water mains - 15 cm thick (SOR VOL II P.195)
For all size Pumping mains
Road Restoration with PCC 1:2:4 using 20 mm HBGS for the Concrete Road cut Portion after the pipes are laid, joined and tested complete and as directed by TWAD Board Officers - 15 cm thick
For all size Pumping mains
Materials
Supply and delivery of following sizes of HDPE PIPES - PE 100 AS PER IS 4984/2016 (Pre-Compounded Resin) inclusive of transportation charges to stockyard excluding unloading anywhere in Tamilnadu etc, complete and as directed by the TWAD Board officers. (SOR VOL II P.14)
160mm HDPE PN 6
140mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
75mm HDPE PN 6
63mm HDPE PN 6
CIVIL WORKS
Earth work excavation and depositing on bank with initial lead of 10 m and initial lift of 2m in narrow trenches for laying of pipes for water supply in the following types of soil
Hard stiff clay, stiff black cotton, hard red earth, shales, murrum gravel, stoney earth and earth mixed with small size boulders and hard gravelly soil. (SOR VOL II P.192)
160mm HDPE PN 6
140mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
75mm HDPE PN 6
63mm HDPE PN 6
Lowering HDPE pipes and specials to trench and laying to proper grade and alignment and as directed by the TWAD Officers. (SOR VOL II P.171)
160mm HDPE PN 6
140mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
75mm HDPE PN 6
63mm HDPE PN 6
Jointing HDPE Pipes and Specials by butt fusion welding / electro fusion welding joints using fusion equipment as per ISO 21307-2011 and as per IS 7634 (part-2) : 2012 including cost of hire charges for butt fusion equipment power supply arrangements etc., complete as per directed by TWAD Board Officers. (SOR VOL II P.184)
160mm HDPE PN 6
140mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
75mm HDPE PN 6
63mm HDPE PN 6
Refiling with excavated sand or other loose soil complying with standerd specification in layers of 15 cm thick well rammed and consolidated after pipes and specials are laid and tested. (SOR VOL II P.192)
160mm HDPE PN 6
140mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
75mm HDPE PN 6
63mm HDPE PN 6
Pumpsets
Carrying out the following repair works occuring during the maintenance period in the Electrical, Mechanical and Elctro-mechanical items to bring back the scheme / components into normal running conditition as per standard specification including all labour charges, cost of materials and all incidental charges within the stipulated time limit etc., complete as specified in Clause 2.8 of General conditions of Contract Part II etc as directed by TWAD Board officers
Attending the Rewinding, Repair and Renewal works in various capacity Open Well Submersible Pumpsets
Removing the Submersible pumpset by using tripod set after disconnecting the power supply cable and delivery pipe line fittings
15HP -OWS
Transporting the pumpset from Pump House to work shop.
15HP -OWS
Rewinding the submersible motor using best quality winding wire including cost of wire, Sleeve, other insulating and fibre class materials after deducting the cost of old materials.
15HP -OWS
Reconditioning the worn-out shaft and fittings, impeller and Gun Metal/ SS Bushes including cost of lath work & labour charges etc.,
15HP -OWS
Replacement of carbon type thrust bearing and pumpside Gun Metal Bush including cost of labour charges after deducting the cost of old material
15HP -OWS
Transporting charges for Submersible pumpset from work shop to Pump House after attending repair works.
15HP -OWS
Re-erection of pumpset in the Sump / Well by using tripod set and required Rubber washer and Bolt & Nuts and connecting the power supply cable and delivery pipeline arrangements testing to trial pumping.
15HP -OWS
SUPPLY AND DELIVERY OF SERVICE CONNECTION ACCESSORIES L.T. 1100V PVC ALUMINIUM ARMOURED UNDER GROUND CABLE WITH ISI MARK
25 Sq.mm 3.5 Core
35 Sq.mm 3.5 Core
50 Sq.mm 3.5 Core
SUPPLY AND DELIVERY OF L.T. CABLES following size sq mm 3 CORE 1.1 KV GRADE ARMOURED ALUMINIUM CONDUCTOR CROSS LINKED POLY ETHYLENE INSULATED PVC SHEATHED CABLES CONFORMING TO IS 7098 (PART I)/1988 WITH ISI MARKING
50 Sq.mm 3 Core
SUPPLY AND DELIVERY OF PVC INSULATED AND SHEATHED following sq mm 3 CORE FLAT TYPE COPPER CABLE CONFORMING TO IS 694/1989
SUPPLY AND DELIVERY OF 150mm dia Pressure Gauge and Vaccum guage including all accessories as per specification (For Suction and Delivery to be mounted on wall on Teak Wood Board)
Supply, delivey and fixing of MOULDED CASE CIRCUIT BREAKER (MCCB) WITH THERMO MAGNETIC RELEASE - 4 Pole
Range - 63/100A
Supply, delivey and fixing of RATE FOR MIXED DI-ELECTRIC CAPACITOR WITH TNEB TEST CERTIFICATE WITH ACCESSORIES INCLUDING BANKING CONFORMIING TO IS 2834.
Supply, delivey and fixing of Electro magnetic contactors of suitable capacity in AC Three Phase rating, conforming to IS/IEC 60947-4-1.
Supply, delivey and fixing of Overload Relays: Directly operated Bimetallic Thermal overload relay which operates in case of overload and also in case of under voltage with manual and auto reset mode.
Supply, delivey and fixing of Preventer – Single Phasing - Electric Motor protection device against single phasing. The device should protect the motor against single phasing, reverse phasing and unbalance supply. The device should be suitable for any auxillary device and have provisions for mounting in panel boards. Operate without need of any auxiliary supply.
Electric Motor protection device against dry running. The device should protect the motor against Dry running. The device should be suitable for any auxillary device and have provisions for mounting in panel boards. Operate without need of any auxiliary supply
Supply, delivey and fixing of FUSE UNITS (ANCHOR /EQUIVALENT)
100 Amps Porcelain fuse unit (500 V)
Supply, delivey and fixing of CHANGE OVER SWITCHES
100 Amps three phase 500 V 4 pole Change over switch
Supply, delivey and fixing of PVC INSULATED SINGLE CORE MULTI STRAND FIRE RETARDANT FLEXIBLE COPPER CABLE WITH ISI MARK CONFORMING TO IS
Supply, delivey and fixing of HRC - FUSES - HIGHER END
HRC - 125 Amps
Supply and delivery of the following Electrical Works :consumable items at the site of work to carryout the general maintenace works
Voltmeter Digital - Three Phase Class 1-AC
Ammeter Digital - Three Phase Class 1-1A
20W 4 Feet LED Fitting with LED (Higher end)
LED OUTDOOR FITTINGS (LIGHT EMITTING DIODE) LOWER END 25W LED Street Light Fitting with LED
Supply and delivery of the following consumable items for Pump Set repairs at the site of work to carryout the general maintenace works
50mm GM Gate valve
80mm GM Gate valve
R I Sheet
Bolts and Nuts - All sizes
50mm GI Pipe
80mm GI Pipe
100mm GI pipe
Supply, delivery and fixing of DI D/F Gate sluice/scour valves (soft seated) resilient seated soft sealing Gate Valves(Sluice Valves) with body Bonnet of Ductile cast iron of Grade GGG 40 or equivalent grade, Wedge fully rubber lined with EPDM replaceable spindle nut without gland packing and with 3 O- Ring protection on the shaft and seals of NBR and the valves should be of Vacuum tight and 100% leak proof with face to face dimensions as per BS 5163- 89/ISI 14846-2000/DIN 3202 F4. All the valves should be with electrostatic powder coating both inside and out side with pocket less straight through body passage. All the valves are to be compatible for buried application with pressure rating PN 10/16 and with 5 years warranty.
100mm DI Gate Valve
Supply, delivey and fixing of C.I. DOUBLE AIR VALVE AS PER ISI 14845/2000 AND WITH 5 YEARS WARRANTY
50mm CI Air Valve
Desilting light or sandysoil or silt from collection well below water level including the charges for special tools & plants and air compressor etc complete
Bleaching powder of 34% concentration as per standard specification.
COMBINED WATER SUPPLY SCHEME TO SODIYAMPAKKAM AND 10 OTHER HABITATIONS IN VEMBAKKAM UNION OF TIRUVANNAMALAI DISTRICT
Operation and Maintenance of the Electro Mechanical installations, equipments, components, pipelines valves and appurtenances, water retaining structures including protecton of all schemee components from damages/ theft undertaking legal actions for such untoward incidents, preventive maintenance, disinfection and deliverance of water as per quality standards and supply of earmarked quantity of water to the beneficiaries as per Annexure .........., carrying out the O&M as per standard operating procedures, Acts and rules in force and as directed by TWAD Board Oficers and excluding cost towards attending leak, burst repair and replacement works to electro mechanical installations consumables for disinfection of water, cleaning of all water retaining structure, electricity .
Repair & Renewals and Leak & Bursts :
Attending Leaks in the PVC pipelines of this CWSS for the following items, as per the standard procedure including earthwork excavation, dewatering, removing, relaying, jointing, civil works, cost of materials and all other incidental charges, etc complete within the stipulated time limit as directed by the TWAD Board officers.
PVC 4 KSC Pipes_Minor Leak
63mm OD PVC 4 KSC pipes_Minor Leak
75mm OD PVC 4 KSC pipes_Minor Leak
90mm OD PVC 4 KSC pipes_Minor Leak
110mm OD PVC 4 KSC pipes_Minor Leak
PVC 4 KSC Pipes_Major Leak
63mm OD PVC 4 KSC pipes_Major Leak
75mm OD PVC 4 KSC pipes_Major Leak
90mm OD PVC 4 KSC pipes_Major Leak
110mm OD PVC 4 KSC pipes_Major Leak
Attending Leaks/Bursts in the HDPE pipelines of this CWSS for the following items, as per the standard procedure including earthwork excavation, dewatering, removing, relaying, jointing by Electro fusion/butt Joint, civil works, cost of materials and all other incidental charges, etc complete within the stipulated time limit as directed by the TWAD Board officers.
HDPE PN 6 Pipes_Minor Leaks
63mm HDPE PN 6 pipes_Minor Leak
90mm HDPE PN 6 pipes_Minor Leak
160mm HDPE PN 6 pipes_Minor Leak
HDPE PN 6 Pipes_Major Leaks
63mm HDPE PN 6 pipes_Major Leak
90mm HDPE PN 6 pipes_Major Leak
160mm HDPE PN 6 pipes_Major Leak
Attending leaks and bursts in GI pipes of various sizes including Supply and delivery of following G I PIPES (MEDIUM) AS PER IS 1239/PART I/2004 and Lowering GI pipes and specials in the trenches and laying to proper grade and alignment, jointing with GI Specials and as directed by the TWAD Officers
50mm GI Pipe leak above GL
80mm GI Pipe leak above GL
Attending joint (Collar) Leaks in the AC pipelines of this CWSS for the following items, as per the standard procedure including earthwork excavation, dewatering, removing, relaying, jointing, civil works, cost of materials and all incidental charges, etc complete within the stipulated time limit as specified in Clause 2.6.4 of General conditions of Contract
AC Pipe_Collar Leak
150mm AC_Collar Leak
AC Pipe_Minor Leak centre crack
150mm AC Pipe_MS Cut Barrel
Labour for cutting open B.T. Roads (or) Maccadam road for laying water mains - 15 cm thick (SOR VOL II P.195)
For all size Pumping mains
Road Restoration with PCC 1:2:4 using 20 mm HBGS for the Concrete Road cut Portion after the pipes are laid, joined and tested complete and as directed by TWAD Board Officers - 15 cm thick
For all size Pumping mains
Supply and delivery of following sizes of HDPE PIPES - PE 100 AS PER IS 4984/2016 (Pre-Compounded Resin) inclusive of transportation charges to stockyard excluding unloading anywhere in Tamilnadu etc, complete and as directed by the TWAD Board officers. (SOR VOL II P.14)
160mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
75mm HDPE PN 6
63mm HDPE PN 6
CIVIL WORKS
Earth work excavation and depositing on bank with initial lead of 10 m and initial lift of 2m in narrow trenches for laying of pipes for water supply in the following types of soil
Hard stiff clay, stiff black cotton, hard red earth, shales, murrum gravel, stoney earth and earth mixed with small size boulders and hard gravelly soil. (SOR VOL II P.192)
160mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
75mm HDPE PN 6
63mm HDPE PN 6
Lowering HDPE pipes and specials to trench and laying to proper grade and alignment and as directed by the TWAD Officers. (SOR VOL II P.171)
160mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
75mm HDPE PN 6
63mm HDPE PN 6
Jointing HDPE Pipes and Specials by butt fusion welding / electro fusion welding joints using fusion equipment as per ISO 21307-2011 and as per IS 7634 (part-2) : 2012 including cost of hire charges for butt fusion equipment power supply arrangements etc., complete as per directed by TWAD Board Officers. (SOR VOL II P.184)
160mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
75mm HDPE PN 6
63mm HDPE PN 6
Refiling with excavated sand or other loose soil complying with standerd specification in layers of 15 cm thick well rammed and consolidated after pipes and specials are laid and tested. (SOR VOL II P.192)
160mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
75mm HDPE PN 6
63mm HDPE PN 6
Pumpsets
Carrying out the following repair works occuring during the maintenance period in the Electrical, Mechanical and Elctro-mechanical items to bring back the scheme / components into normal running conditition as per standard specification including all labour charges, cost of materials and all incidental charges within the stipulated time limit etc., complete as specified in Clause 2.8 of General conditions of Contract Part II etc as directed by TWAD Board officers
Attending the Rewinding, Repair and Renewal works in various capacity Open Well Submersible Pumpsets
Removing the Submersible pumpset by using tripod set after disconnecting the power supply cable and delivery pipe line fittings
5HP -OWS
15HP -OWS
20HP -OWS
30HP -OWS
Transporting the pumpset from Pump House to work shop.
5HP -OWS
15HP -OWS
20HP -OWS
30HP -OWS
Rewinding the submersible motor using best quality winding wire including cost of wire, Sleeve, other insulating and fibre class materials after deducting the cost of old materials.
5HP -OWS
15HP -OWS
20HP -OWS
30HP -OWS
Reconditioning the worn-out shaft and fittings, impeller and Gun Metal/ SS Bushes including cost of lath work & labour charges etc.,
5HP -OWS
15HP -OWS
20HP -OWS
30HP -OWS
Replacement of carbon type thrust bearing and pumpside Gun Metal Bush including cost of labour charges after deducting the cost of old material
5HP -OWS
15HP -OWS
20HP -OWS
30HP -OWS
Transporting charges for Submersible pumpset from work shop to Pump House after attending repair works.
5HP -OWS
15HP -OWS
20HP -OWS
30HP -OWS
Re-erection of pumpset in the Sump / Well by using tripod set and required Rubber washer and Bolt & Nuts and connecting the power supply cable and delivery pipeline arrangements testing to trial pumping.
5HP -OWS
15HP -OWS
20HP -OWS
30HP -OWS
Attending the Rewinding, Repair and Renewal works in Monoblock Pumpset
5HP_Monoblock
Removing the Monblock Centrifugal Pumpset from the Bed assembly by using contractors tools and materials after disconnecting the power supply cable and delivery pipe line fittings with required dummy plate arrangements.
Transporting the pumpset from the Pumping Station to work shop.
Removing the Burnt winding materials from the stator slots and cleaning the stator and rotor assembly by using contractor tools and materials
Reconditioning the worn-out shaft and fittings, impeller and Rope gland bush including cost of lath work & labour charges etc.,
Rewinding the Monblock Centrifugal Motor using best quality winding wire including cost of wire, Sleeve, other insulating and fibre class materials after deducting the cost of old materials.
Replacement of driven end (No: XXXX) and Non driven end (No:XXXX) Bearings suitable for Monblock Centrifugal Motor including the cost of Bearing and labour charges after deducting the cost of old materials.
Replacement of cooling fan at motor end and Terminal Board for suitable for Monblock Centrifugal Pumpset and labour charges after deducting the cost of old materials.
Transporting charges for Monblock Centrifugal Pumpset from work shop to Pump House after attending repair works.
Re-erection of pumpset in the Sump / Well by using required Rubber washer and Bolt & Nuts and connecting the power supply cable and delivery pipe line arrangements, testing and trial pumping.
7.5HP_Monoblock
Removing the Monblock Centrifugal Pumpset from the Bed assembly by using contractors tools and materials after disconnecting the power supply cable and delivery pipe line fittings with required dummy plate arrangements.
Transporting the pumpset from the Pumping Station to work shop.
Removing the Burnt winding materials from the stator slots and cleaning the stator and rotor assembly by using contractor tools and materials
Reconditioning the worn-out shaft and fittings, impeller and Rope gland bush including cost of lath work & labour charges etc.,
Rewinding the Monblock Centrifugal Motor using best quality winding wire including cost of wire, Sleeve, other insulating and fibre class materials after deducting the cost of old materials.
Replacement of driven end (No: XXXX) and Non driven end (No:XXXX) Bearings suitable for Monblock Centrifugal Motor including the cost of Bearing and labour charges after deducting the cost of old materials.
Replacement of cooling fan at motor end and Terminal Board for suitable for Monblock Centrifugal Pumpset and labour charges after deducting the cost of old materials.
Transporting charges for Monblock Centrifugal Pumpset from work shop to Pump House after attending repair works.
Re-erection of pumpset in the Sump / Well by using required Rubber washer and Bolt & Nuts and connecting the power supply cable and delivery pipe line arrangements, testing and trial pumping.
SUPPLY AND DELIVERY OF SERVICE CONNECTION ACCESSORIES L.T. 1100V PVC ALUMINIUM ARMOURED UNDER GROUND CABLE WITH ISI MARK
25 Sq.mm 3.5 Core
35 Sq.mm 3.5 Core
50 Sq.mm 3.5 Core
SUPPLY AND DELIVERY OF L.T. CABLES following size sq mm 3 CORE 1.1 KV GRADE ARMOURED ALUMINIUM CONDUCTOR CROSS LINKED POLY ETHYLENE INSULATED PVC SHEATHED CABLES CONFORMING TO IS 7098 (PART I)/1988 WITH ISI MARKING
25 Sq.mm 3 Core
95 Sq.mm 3 Core
SUPPLY AND DELIVERY OF PVC INSULATED AND SHEATHED following sq mm 3 CORE FLAT TYPE COPPER CABLE CONFORMING TO IS 694/1989
SUPPLY AND DELIVERY OF 150mm dia Pressure Gauge and Vaccum guage including all accessories as per specification (For Suction and Delivery to be mounted on wall on Teak Wood Board)
Supply, delivey and fixing of MOULDED CASE CIRCUIT BREAKER (MCCB) WITH THERMO MAGNETIC RELEASE - 4 Pole
Range - 63/100A
Range - 125A
Supply, delivey and fixing of RATE FOR MIXED DI-ELECTRIC CAPACITOR WITH TNEB TEST CERTIFICATE WITH ACCESSORIES INCLUDING BANKING CONFORMIING TO IS 2834.
Supply, delivey and fixing of Electro magnetic contactors of suitable capacity in AC Three Phase rating, conforming to IS/IEC 60947-4-1.
Supply, delivey and fixing of Overload Relays: Directly operated Bimetallic Thermal overload relay which operates in case of overload and also in case of under voltage with manual and auto reset mode.
Supply, delivey and fixing of Preventer – Single Phasing - Electric Motor protection device against single phasing. The device should protect the motor against single phasing, reverse phasing and unbalance supply. The device should be suitable for any auxillary device and have provisions for mounting in panel boards. Operate without need of any auxiliary supply.
Electric Motor protection device against dry running. The device should protect the motor against Dry running. The device should be suitable for any auxillary device and have provisions for mounting in panel boards. Operate without need of any auxiliary supply
Supply, delivey and fixing of FUSE UNITS (ANCHOR /EQUIVALENT)
63 Amps Porcelain fuse unit (500 V)
100 Amps Porcelain fuse unit (500 V)
200 Amps Porcelain fuse unit (500 V)
Supply, delivey and fixing of CHANGE OVER SWITCHES
16 Amps three phase 500 V 4 pole Change over switch
32 Amps three phase 500 V 4 pole Change over switch
63 Amps three phase 500 V 4 pole Change over switch
100 Amps three phase 500 V 4 pole Change over switch
Supply, delivey and fixing of PVC INSULATED SINGLE CORE MULTI STRAND FIRE RETARDANT FLEXIBLE COPPER CABLE WITH ISI MARK CONFORMING TO IS
Supply, delivey and fixing of HRC - FUSES - HIGHER END
HRC - 16 Amps
HRC - 32 Amps
HRC - 63 Amps
HRC - 125 Amps
HRC - 200 Amps
Supply and delivery of the following Electrical Works :consumable items at the site of work to carryout the general maintenace works
Voltmeter Digital - Three Phase Class 1-AC
Ammeter Digital - Three Phase Class 1-1A
20W 4 Feet LED Fitting with LED (Higher end)
LED OUTDOOR FITTINGS (LIGHT EMITTING DIODE) LOWER END 25W LED Street Light Fitting with LED
Supply and delivery of the following consumable items for Pump Set repairs at the site of work to carryout the general maintenace works
50mm GM Gate valve
80mm GM Gate valve
R I Sheet
Bolts and Nuts - All sizes
50mm GI Pipe
80mm GI Pipe
100mm GI pipe
Supply, delivery and fixing of DI D/F Gate sluice/scour valves (soft seated) resilient seated soft sealing Gate Valves(Sluice Valves) with body Bonnet of Ductile cast iron of Grade GGG 40 or equivalent grade, Wedge fully rubber lined with EPDM replaceable spindle nut without gland packing and with 3 O- Ring protection on the shaft and seals of NBR and the valves should be of Vacuum tight and 100% leak proof with face to face dimensions as per BS 5163- 89/ISI 14846-2000/DIN 3202 F4. All the valves should be with electrostatic powder coating both inside and out side with pocket less straight through body passage. All the valves are to be compatible for buried application with pressure rating PN 10/16 and with 5 years warranty.
150mm DI Gate Valve
Supply, delivey and fixing of C.I. DOUBLE AIR VALVE AS PER ISI 14845/2000 AND WITH 5 YEARS WARRANTY
50mm CI Air Valve
SUMP CLEANING
Cleaning of all storage points like sumps, elevated reservoirs of various capacities available in this scheme at a frequency of once in two months including scrapping the inner side of compartment completely, scouring / dewatering / desilting using required machineries, materials, labour and all other incidental charges, application of bleaching powder/ solution etc complete.
For 45001 to 60000 lit cap sump
Desilting light or sandysoil or silt from collection well below water level including the charges for special tools & plants and air compressor etc complete
Bleaching powder of 34% concentration as per standard specification.
COMBINED WATER SUPPLY SCHEME TO THENPOONDIPATTU AND 13 OTHER HABITATIONS IN CHEYYAR UNION & VEMBAKKAM UNION OF TIRUVANNAMALAI DISTRICT
Operation and Maintenance of the Electro Mechanical installations, equipments, components, pipelines valves and appurtenances, water retaining structures including protecton of all schemee components from damages/ theft undertaking legal actions for such untoward incidents, preventive maintenance, disinfection and deliverance of water as per quality standards and supply of earmarked quantity of water to the beneficiaries as per Annexure .........., carrying out the O&M as per standard operating procedures, Acts and rules in force and as directed by TWAD Board Oficers and excluding cost towards attending leak, burst repair and replacement works to electro mechanical installations consumables for disinfection of water, cleaning of all water retaining structure, electricity .
Repair & Renewals and Leak & Bursts :
Attending Leaks in the PVC pipelines of this CWSS for the following items, as per the standard procedure including earthwork excavation, dewatering, removing, relaying, jointing, civil works, cost of materials and all other incidental charges, etc complete within the stipulated time limit as directed by the TWAD Board officers.
PVC 4 KSC Pipes_Minor Leak
63mm OD PVC 4 KSC pipes_Minor Leak
75mm OD PVC 4 KSC pipes_Minor Leak
90mm OD PVC 4 KSC pipes_Minor Leak
110mm OD PVC 4 KSC pipes_Minor Leak
140mm OD PVC 4 KSC pipes_Minor Leak
PVC 4 KSC Pipes_Major Leak
63mm OD PVC 4 KSC pipes_Major Leak
75mm OD PVC 4 KSC pipes_Major Leak
90mm OD PVC 4 KSC pipes_Major Leak
110mm OD PVC 4 KSC pipes_Major Leak
140mm OD PVC 4 KSC pipes_Major Leak
Attending Leaks/Bursts in the HDPE pipelines of this CWSS for the following items, as per the standard procedure including earthwork excavation, dewatering, removing, relaying, jointing by Electro fusion/butt Joint, civil works, cost of materials and all other incidental charges, etc complete within the stipulated time limit as directed by the TWAD Board officers.
HDPE PN 6 Pipes_Minor Leaks
90mm HDPE PN 6 pipes_Minor Leak
110mm HDPE PN 6 pipes_Minor Leak
140mm HDPE PN 6 pipes_Minor Leak
HDPE PN 6 Pipes_Major Leaks
90mm HDPE PN 6 pipes_Major Leak
110mm HDPE PN 6 pipes_Major Leak
140mm HDPE PN 6 pipes_Major Leak
Attending leaks and bursts in GI pipes of various sizes including Supply and delivery of following G I PIPES (MEDIUM) AS PER IS 1239/PART I/2004 and Lowering GI pipes and specials in the trenches and laying to proper grade and alignment, jointing with GI Specials and as directed by the TWAD Officers
50mm GI Pipe leak above GL
65mm GI Pipe leak above GL
80mm GI Pipe leak above GL
Labour for cutting open B.T. Roads (or) Maccadam road for laying water mains - 15 cm thick (SOR VOL II P.195)
For all size Pumping mains
Road Restoration with PCC 1:2:4 using 20 mm HBGS for the Concrete Road cut Portion after the pipes are laid, joined and tested complete and as directed by TWAD Board Officers - 15 cm thick
For all size Pumping mains
MATERIALS
Supply and delivery of following sizes of HDPE PIPES - PE 100 AS PER IS 4984/2016 (Pre-Compounded Resin) inclusive of transportation charges to stockyard excluding unloading anywhere in Tamilnadu etc, complete and as directed by the TWAD Board officers. (SOR VOL II P.14)
140mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
75mm HDPE PN 6
63mm HDPE PN 6
CIVIL WORKS
Earth work excavation and depositing on bank with initial lead of 10 m and initial lift of 2m in narrow trenches for laying of pipes for water supply in the following types of soil
Hard stiff clay, stiff black cotton, hard red earth, shales, murrum gravel, stoney earth and earth mixed with small size boulders and hard gravelly soil. (SOR VOL II P.192)
140mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
75mm HDPE PN 6
63mm HDPE PN 6
Lowering HDPE pipes and specials to trench and laying to proper grade and alignment and as directed by the TWAD Officers. (SOR VOL II P.171)
140mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
75mm HDPE PN 6
63mm HDPE PN 6
Jointing HDPE Pipes and Specials by butt fusion welding / electro fusion welding joints using fusion equipment as per ISO 21307-2011 and as per IS 7634 (part-2) : 2012 including cost of hire charges for butt fusion equipment power supply arrangements etc., complete as per directed by TWAD Board Officers. (SOR VOL II P.184)
140mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
75mm HDPE PN 6
63mm HDPE PN 6
Refiling with excavated sand or other loose soil complying with standerd specification in layers of 15 cm thick well rammed and consolidated after pipes and specials are laid and tested. (SOR VOL II P.192)
140mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
75mm HDPE PN 6
63mm HDPE PN 6
Pumpsets
Carrying out the following repair works occuring during the maintenance period in the Electrical, Mechanical and Elctro-mechanical items to bring back the scheme / components into normal running conditition as per standard specification including all labour charges, cost of materials and all incidental charges within the stipulated time limit etc., complete as specified in Clause 2.8 of General conditions of Contract Part II etc as directed by TWAD Board officers
Attending the Rewinding, Repair and Renewal works in various capacity Open Well Submersible Pumpsets
Removing the Submersible pumpset by using tripod set after disconnecting the power supply cable and delivery pipe line fittings
5HP -OWS
7.5HP -OWS
10HP -OWS
Transporting the pumpset from Pump House to work shop.
5HP -OWS
7.5HP -OWS
10HP -OWS
Rewinding the submersible motor using best quality winding wire including cost of wire, Sleeve, other insulating and fibre class materials after deducting the cost of old materials.
5HP -OWS
7.5HP -OWS
10HP -OWS
Reconditioning the worn-out shaft and fittings, impeller and Gun Metal/ SS Bushes including cost of lath work & labour charges etc.,
5HP -OWS
7.5HP -OWS
10HP -OWS
Replacement of carbon type thrust bearing and pumpside Gun Metal Bush including cost of labour charges after deducting the cost of old material
5HP -OWS
7.5HP -OWS
10HP -OWS
Transporting charges for Submersible pumpset from work shop to Pump House after attending repair works.
5HP -OWS
7.5HP -OWS
10HP -OWS
Re-erection of pumpset in the Sump / Well by using tripod set and required Rubber washer and Bolt & Nuts and connecting the power supply cable and delivery pipeline arrangements testing to trial pumping.
5HP -OWS
7.5HP -OWS
10HP -OWS
SUPPLY AND DELIVERY OF SERVICE CONNECTION ACCESSORIES L.T. 1100V PVC ALUMINIUM ARMOURED UNDER GROUND CABLE WITH ISI MARK
25 Sq.mm 3.5 Core
35 Sq.mm 3.5 Core
50 Sq.mm 3.5 Core
SUPPLY AND DELIVERY OF L.T. CABLES following size sq mm 3 CORE 1.1 KV GRADE ARMOURED ALUMINIUM CONDUCTOR CROSS LINKED POLY ETHYLENE INSULATED PVC SHEATHED CABLES CONFORMING TO IS 7098 (PART I)/1988 WITH ISI MARKING
50 Sq.mm 3 Core
SUPPLY AND DELIVERY OF PVC INSULATED AND SHEATHED following sq mm 3 CORE FLAT TYPE COPPER CABLE CONFORMING TO IS 694/1989
SUPPLY AND DELIVERY OF 150mm dia Pressure Gauge and Vaccum guage including all accessories as per specification (For Suction and Delivery to be mounted on wall on Teak Wood Board)
Supply, delivey and fixing of MOULDED CASE CIRCUIT BREAKER (MCCB) WITH THERMO MAGNETIC RELEASE - 4 Pole
Range - 63/100A
Supply, delivey and fixing of RATE FOR MIXED DI-ELECTRIC CAPACITOR WITH TNEB TEST CERTIFICATE WITH ACCESSORIES INCLUDING BANKING CONFORMIING TO IS 2834.
Supply, delivey and fixing of Electro magnetic contactors of suitable capacity in AC Three Phase rating, conforming to IS/IEC 60947-4-1.
Supply, delivey and fixing of Overload Relays: Directly operated Bimetallic Thermal overload relay which operates in case of overload and also in case of under voltage with manual and auto reset mode.
Supply, delivey and fixing of Preventer – Single Phasing - Electric Motor protection device against single phasing. The device should protect the motor against single phasing, reverse phasing and unbalance supply. The device should be suitable for any auxillary device and have provisions for mounting in panel boards. Operate without need of any auxiliary supply.
Electric Motor protection device against dry running. The device should protect the motor against Dry running. The device should be suitable for any auxillary device and have provisions for mounting in panel boards. Operate without need of any auxiliary supply
Supply, delivey and fixing of FUSE UNITS (ANCHOR /EQUIVALENT)
63 Amps Porcelain fuse unit (500 V)
100 Amps Porcelain fuse unit (500 V)
200 Amps Porcelain fuse unit (500 V)
Supply, delivey and fixing of CHANGE OVER SWITCHES
16 Amps three phase 500 V 4 pole Change over switch
32 Amps three phase 500 V 4 pole Change over switch
63 Amps three phase 500 V 4 pole Change over switch
100 Amps three phase 500 V 4 pole Change over switch
Supply, delivey and fixing of PVC INSULATED SINGLE CORE MULTI STRAND FIRE RETARDANT FLEXIBLE COPPER CABLE WITH ISI MARK CONFORMING TO IS
Supply, delivey and fixing of HRC - FUSES - HIGHER END
HRC - 16 Amps
HRC - 32 Amps
HRC - 63 Amps
HRC - 125 Amps
Supply and delivery of the following Electrical Works :consumable items at the site of work to carryout the general maintenace works
Voltmeter Digital - Three Phase Class 1-AC
Ammeter Digital - Three Phase Class 1-1A
20W 4 Feet LED Fitting with LED (Higher end)
LED OUTDOOR FITTINGS (LIGHT EMITTING DIODE) LOWER END 25W LED Street Light Fitting with LED
Supply and delivery of the following consumable items for Pump Set repairs at the site of work to carryout the general maintenace works
50mm GM Gate valve
80mm GM Gate valve
R I Sheet
Bolts and Nuts - All sizes
50mm GI Pipe
80mm GI Pipe
100mm GI pipe
Supply, delivery and fixing of DI D/F Gate sluice/scour valves (soft seated) resilient seated soft sealing Gate Valves(Sluice Valves) with body Bonnet of Ductile cast iron of Grade GGG 40 or equivalent grade, Wedge fully rubber lined with EPDM replaceable spindle nut without gland packing and with 3 O- Ring protection on the shaft and seals of NBR and the valves should be of Vacuum tight and 100% leak proof with face to face dimensions as per BS 5163- 89/ISI 14846-2000/DIN 3202 F4. All the valves should be with electrostatic powder coating both inside and out side with pocket less straight through body passage. All the valves are to be compatible for buried application with pressure rating PN 10/16 and with 5 years warranty.
100mm DI Gate Valve
Supply, delivey and fixing of C.I. DOUBLE AIR VALVE AS PER ISI 14845/2000 AND WITH 5 YEARS WARRANTY
50mm CI Air Valve
SUMP CLEANING
Cleaning of all storage points like sumps, elevated reservoirs of various capacities available in this scheme at a frequency of once in two months including scrapping the inner side of compartment completely, scouring / dewatering / desilting using required machineries, materials, labour and all other incidental charges, application of bleaching powder/ solution etc complete.
For 175001 to 200000 lit cap sump
Desilting light or sandysoil or silt from collection well below water level including the charges for special tools & plants and air compressor etc complete
Bleaching powder of 34% concentration as per standard specification.
COMBINED WATER SUPPLY SCHEME TO UKKAL KOTTAKARAI AND 13 OTHER HABITATIONSUNION IN ANAKKAVUR UNION OF TIRUVANNAMALAI DISTRICT
Attending Leaks in the PVC pipelines of this CWSS for the following items, as per the standard procedure including earthwork excavation, dewatering, removing, relaying, jointing, civil works, cost of materials and all other incidental charges, etc complete within the stipulated time limit as directed by the TWAD Board officers.
PVC 4 KSC Pipes_Minor Leak
63mm OD PVC 4 KSC pipes_Minor Leak
75mm OD PVC 4 KSC pipes_Minor Leak
90mm OD PVC 4 KSC pipes_Minor Leak
110mm OD PVC 4 KSC pipes_Minor Leak
PVC 4 KSC Pipes_Major Leak
63mm OD PVC 4 KSC pipes_Major Leak
75mm OD PVC 4 KSC pipes_Major Leak
90mm OD PVC 4 KSC pipes_Major Leak
110mm OD PVC 4 KSC pipes_Major Leak
Attending Leaks/Bursts in the HDPE pipelines of this CWSS for the following items, as per the standard procedure including earthwork excavation, dewatering, removing, relaying, jointing by Electro fusion/butt Joint, civil works, cost of materials and all other incidental charges, etc complete within the stipulated time limit as directed by the TWAD Board officers.
HDPE PN 6 Pipes_Minor Leaks
110mm HDPE PN 6 pipes_Minor Leak
HDPE PN 6 Pipes_Major Leaks
110mm HDPE PN 6 pipes_Major Leak
Attending leaks and bursts in GI pipes of various sizes including Supply and delivery of following G I PIPES (MEDIUM) AS PER IS 1239/PART I/2004 and Lowering GI pipes and specials in the trenches and laying to proper grade and alignment, jointing with GI Specials and as directed by the TWAD Officers
50mm GI Pipe leak above GL
65mm GI Pipe leak above GL
80mm GI Pipe leak above GL
100mm GI Pipe leak above GL
Labour for cutting open B.T. Roads (or) Maccadam road for laying water mains - 15 cm thick (SOR VOL II P.195)
For all size Pumping mains
Road Restoration with PCC 1:2:4 using 20 mm HBGS for the Concrete Road cut Portion after the pipes are laid, joined and tested complete and as directed by TWAD Board Officers - 15 cm thick
For all size Pumping mains
MATERIALS
Supply and delivery of following sizes of HDPE PIPES - PE 100 AS PER IS 4984/2016 (Pre-Compounded Resin) inclusive of transportation charges to stockyard excluding unloading anywhere in Tamilnadu etc, complete and as directed by the TWAD Board officers. (SOR VOL II P.14)
110mm HDPE PN 6
90mm HDPE PN 6
75mm HDPE PN 6
63mm HDPE PN 6
CIVIL WORKS
Earth work excavation and depositing on bank with initial lead of 10 m and initial lift of 2m in narrow trenches for laying of pipes for water supply in the following types of soil
Hard stiff clay, stiff black cotton, hard red earth, shales, murrum gravel, stoney earth and earth mixed with small size boulders and hard gravelly soil. (SOR VOL II P.192)
110mm HDPE PN 6
90mm HDPE PN 6
75mm HDPE PN 6
63mm HDPE PN 6
Lowering HDPE pipes and specials to trench and laying to proper grade and alignment and as directed by the TWAD Officers. (SOR VOL II P.171)
110mm HDPE PN 6
90mm HDPE PN 6
75mm HDPE PN 6
63mm HDPE PN 6
Jointing HDPE Pipes and Specials by butt fusion welding / electro fusion welding joints using fusion equipment as per ISO 21307-2011 and as per IS 7634 (part-2) : 2012 including cost of hire charges for butt fusion equipment power supply arrangements etc., complete as per directed by TWAD Board Officers. (SOR VOL II P.184)
110mm HDPE PN 6
90mm HDPE PN 6
75mm HDPE PN 6
63mm HDPE PN 6
Refiling with excavated sand or other loose soil complying with standerd specification in layers of 15 cm thick well rammed and consolidated after pipes and specials are laid and tested. (SOR VOL II P.192)
110mm HDPE PN 6
90mm HDPE PN 6
75mm HDPE PN 6
63mm HDPE PN 6
Pumpsets
Carrying out the following repair works occuring during the maintenance period in the Electrical, Mechanical and Elctro-mechanical items to bring back the scheme / components into normal running conditition as per standard specification including all labour charges, cost of materials and all incidental charges within the stipulated time limit etc., complete as specified in Clause 2.8 of General conditions of Contract Part II etc as directed by TWAD Board officers
Attending the Rewinding, Repair and Renewal works in various capacity Open Well Submersible Pumpsets
Removing the Submersible pumpset by using tripod set after disconnecting the power supply cable and delivery pipe line fittings
5HP -OWS
7.5HP -OWS
15HP -OWS
20HP -OWS
Transporting the pumpset from Pump House to work shop.
5HP -OWS
7.5HP -OWS
15HP -OWS
20HP -OWS
Rewinding the submersible motor using best quality winding wire including cost of wire, Sleeve, other insulating and fibre class materials after deducting the cost of old materials.
5HP -OWS
7.5HP -OWS
15HP -OWS
20HP -OWS
Reconditioning the worn-out shaft and fittings, impeller and Gun Metal/ SS Bushes including cost of lath work & labour charges etc.,
5HP -OWS
7.5HP -OWS
15HP -OWS
20HP -OWS
Replacement of carbon type thrust bearing and pumpside Gun Metal Bush including cost of labour charges after deducting the cost of old material
5HP -OWS
7.5HP -OWS
15HP -OWS
20HP -OWS
Transporting charges for Submersible pumpset from work shop to Pump House after attending repair works.
5HP -OWS
7.5HP -OWS
15HP -OWS
20HP -OWS
Re-erection of pumpset in the Sump / Well by using tripod set and required Rubber washer and Bolt & Nuts and connecting the power supply cable and delivery pipeline arrangements testing to trial pumping.
5HP -OWS
7.5HP -OWS
15HP -OWS
20HP -OWS
SUPPLY AND DELIVERY OF SERVICE CONNECTION ACCESSORIES L.T. 1100V PVC ALUMINIUM ARMOURED UNDER GROUND CABLE WITH ISI MARK
25 Sq.mm 3.5 Core
35 Sq.mm 3.5 Core
50 Sq.mm 3.5 Core
SUPPLY AND DELIVERY OF L.T. CABLES following size sq mm 3 CORE 1.1 KV GRADE ARMOURED ALUMINIUM CONDUCTOR CROSS LINKED POLY ETHYLENE INSULATED PVC SHEATHED CABLES CONFORMING TO IS 7098 (PART I)/1988 WITH ISI MARKING
35 Sq.mm 3 Core
SUPPLY AND DELIVERY OF PVC INSULATED AND SHEATHED following sq mm 3 CORE FLAT TYPE COPPER CABLE CONFORMING TO IS 694/1989
SUPPLY AND DELIVERY OF 150mm dia Pressure Gauge and Vaccum guage including all accessories as per specification (For Suction and Delivery to be mounted on wall on Teak Wood Board)
Supply, delivey and fixing of MOULDED CASE CIRCUIT BREAKER (MCCB) WITH THERMO MAGNETIC RELEASE - 4 Pole
Range - 63/100A
Range - 125A
Supply, delivey and fixing of RATE FOR MIXED DI-ELECTRIC CAPACITOR WITH TNEB TEST CERTIFICATE WITH ACCESSORIES INCLUDING BANKING CONFORMIING TO IS 2834.
Supply, delivey and fixing of Electro magnetic contactors of suitable capacity in AC Three Phase rating, conforming to IS/IEC 60947-4-1.
Supply, delivey and fixing of Overload Relays: Directly operated Bimetallic Thermal overload relay which operates in case of overload and also in case of under voltage with manual and auto reset mode.
Supply, delivey and fixing of Preventer – Single Phasing - Electric Motor protection device against single phasing. The device should protect the motor against single phasing, reverse phasing and unbalance supply. The device should be suitable for any auxillary device and have provisions for mounting in panel boards. Operate without need of any auxiliary supply.
Electric Motor protection device against dry running. The device should protect the motor against Dry running. The device should be suitable for any auxillary device and have provisions for mounting in panel boards. Operate without need of any auxiliary supply
Supply, delivey and fixing of FUSE UNITS (ANCHOR /EQUIVALENT)
63 Amps Porcelain fuse unit (500 V)
100 Amps Porcelain fuse unit (500 V)
200 Amps Porcelain fuse unit (500 V)
Supply, delivey and fixing of CHANGE OVER SWITCHES
100 Amps three phase 500 V 4 pole Change over switch
Supply, delivey and fixing of PVC INSULATED SINGLE CORE MULTI STRAND FIRE RETARDANT FLEXIBLE COPPER CABLE WITH ISI MARK CONFORMING TO IS
Supply, delivey and fixing of HRC - FUSES - HIGHER END
HRC - 16 Amps
HRC - 32 Amps
HRC - 63 Amps
HRC - 125 Amps
Supply and delivery of the following Electrical Works :consumable items at the site of work to carryout the general maintenace works
Voltmeter Digital - Three Phase Class 1-AC
Ammeter Digital - Three Phase Class 1-1A
20W 4 Feet LED Fitting with LED (Higher end)
LED OUTDOOR FITTINGS (LIGHT EMITTING DIODE) LOWER END 25W LED Street Light Fitting with LED
Supply and delivery of the following consumable items for Pump Set repairs at the site of work to carryout the general maintenace works
50mm GM Gate valve
80mm GM Gate valve
R I Sheet
Bolts and Nuts - All sizes
50mm GI Pipe
80mm GI Pipe
100mm GI pipe
Supply, delivery and fixing of DI D/F Gate sluice/scour valves (soft seated) resilient seated soft sealing Gate Valves(Sluice Valves) with body Bonnet of Ductile cast iron of Grade GGG 40 or equivalent grade, Wedge fully rubber lined with EPDM replaceable spindle nut without gland packing and with 3 O- Ring protection on the shaft and seals of NBR and the valves should be of Vacuum tight and 100% leak proof with face to face dimensions as per BS 5163- 89/ISI 14846-2000/DIN 3202 F4. All the valves should be with electrostatic powder coating both inside and out side with pocket less straight through body passage. All the valves are to be compatible for buried application with pressure rating PN 10/16 and with 5 years warranty.
150mm DI Gate Valve
Supply, delivey and fixing of C.I. DOUBLE AIR VALVE AS PER ISI 14845/2000 AND WITH 5 YEARS WARRANTY
50mm CI Air Valve
SUMP CLEANING
Cleaning of all storage points like sumps, elevated reservoirs of various capacities available in this scheme at a frequency of once in two months including scrapping the inner side of compartment completely, scouring / dewatering / desilting using required machineries, materials, labour and all other incidental charges, application of bleaching powder/ solution etc complete.
For 15001 to 30000 lit cap sump
Desilting light or sandysoil or silt from collection well below water level including the charges for special tools & plants and air compressor etc complete
Bleaching powder of 34% concentration as per standard specification.
COMBINED WATER SUPPLY SCHEME TO UMAYALPURAM, VEMBAKKAM H AND 10 OTHER HABITATIONS IN VEMBAKKAM UNION OF TIRUVANNAMALAI DISTRICT
Operation and Maintenance of the Electro Mechanical installations, equipments, components, pipelines valves and appurtenances, water retaining structures including protecton of all schemee components from damages/ theft undertaking legal actions for such untoward incidents, preventive maintenance, disinfection and deliverance of water as per quality standards and supply of earmarked quantity of water to the beneficiaries as per Annexure .........., carrying out the O&M as per standard operating procedures, Acts and rules in force and as directed by TWAD Board Oficers and excluding cost towards attending leak, burst repair and replacement works to electro mechanical installations consumables for disinfection of water, cleaning of all water retaining structure, electricity .
Repair & Renewals and Leak & Bursts :
Attending Leaks in the PVC pipelines of this CWSS for the following items, as per the standard procedure including earthwork excavation, dewatering, removing, relaying, jointing, civil works, cost of materials and all other incidental charges, etc complete within the stipulated time limit as directed by the TWAD Board officers.
PVC 4 KSC Pipes_Minor Leak
63mm OD PVC 4 KSC pipes_Minor Leak
75mm OD PVC 4 KSC pipes_Minor Leak
90mm OD PVC 4 KSC pipes_Minor Leak
110mm OD PVC 4 KSC pipes_Minor Leak
PVC 4 KSC Pipes_Major Leak
63mm OD PVC 4 KSC pipes_Major Leak
75mm OD PVC 4 KSC pipes_Major Leak
90mm OD PVC 4 KSC pipes_Major Leak
110mm OD PVC 4 KSC pipes_Major Leak
Attending Leaks/Bursts in the HDPE pipelines of this CWSS for the following items, as per the standard procedure including earthwork excavation, dewatering, removing, relaying, jointing by Electro fusion/butt Joint, civil works, cost of materials and all other incidental charges, etc complete within the stipulated time limit as directed by the TWAD Board officers.
HDPE PN 6 Pipes_Minor Leaks
63mm HDPE PN 6 pipes_Minor Leak
110mm HDPE PN 6 pipes_Minor Leak
125mm HDPE PN 6 pipes_Minor Leak
160mm HDPE PN 6 pipes_Minor Leak
HDPE PN 6 Pipes_Major Leaks
63mm HDPE PN 6 pipes_Major Leak
110mm HDPE PN 6 pipes_Major Leak
125mm HDPE PN 6 pipes_Major Leak
160mm HDPE PN 6 pipes_Major Leak
Attending leaks and bursts in GI pipes of various sizes including Supply and delivery of following G I PIPES (MEDIUM) AS PER IS 1239/PART I/2004 and Lowering GI pipes and specials in the trenches and laying to proper grade and alignment, jointing with GI Specials and as directed by the TWAD Officers
50mm GI Pipe leak above GL
80mm GI Pipe leak above GL
125mm GI Pipe leak above GL
150mm GI Pipe leak above GL
Attending joint (Collar) Leaks in the AC pipelines of this CWSS for the following items, as per the standard procedure including earthwork excavation, dewatering, removing, relaying, jointing, civil works, cost of materials and all incidental charges, etc complete within the stipulated time limit as specified in Clause 2.6.4 of General conditions of Contract
AC Pipe_Collar Leak
150mm AC_Collar Leak
AC Pipe_Minor Leak centre crack
150mm AC Pipe_MS Cut Barrel
Labour for cutting open B.T. Roads (or) Maccadam road for laying water mains - 15 cm thick (SOR VOL II P.195)
For all size Pumping mains
Road Restoration with PCC 1:2:4 using 20 mm HBGS for the Concrete Road cut Portion after the pipes are laid, joined and tested complete and as directed by TWAD Board Officers - 15 cm thick
For all size Pumping mains
MATERIALS
Supply and delivery of following sizes of HDPE PIPES - PE 100 AS PER IS 4984/2016 (Pre-Compounded Resin) inclusive of transportation charges to stockyard excluding unloading anywhere in Tamilnadu etc, complete and as directed by the TWAD Board officers. (SOR VOL II P.14)
160mm HDPE PN 6
125mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
75mm HDPE PN 6
63mm HDPE PN 6
CIVIL WORKS
Earth work excavation and depositing on bank with initial lead of 10 m and initial lift of 2m in narrow trenches for laying of pipes for water supply in the following types of soil
Hard stiff clay, stiff black cotton, hard red earth, shales, murrum gravel, stoney earth and earth mixed with small size boulders and hard gravelly soil. (SOR VOL II P.192)
160mm HDPE PN 6
140mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
75mm HDPE PN 6
63mm HDPE PN 6
Lowering HDPE pipes and specials to trench and laying to proper grade and alignment and as directed by the TWAD Officers. (SOR VOL II P.171)
160mm HDPE PN 6
125mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
75mm HDPE PN 6
63mm HDPE PN 6
Jointing HDPE Pipes and Specials by butt fusion welding / electro fusion welding joints using fusion equipment as per ISO 21307-2011 and as per IS 7634 (part-2) : 2012 including cost of hire charges for butt fusion equipment power supply arrangements etc., complete as per directed by TWAD Board Officers. (SOR VOL II P.184)
160mm HDPE PN 6
125mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
75mm HDPE PN 6
63mm HDPE PN 6
Refiling with excavated sand or other loose soil complying with standerd specification in layers of 15 cm thick well rammed and consolidated after pipes and specials are laid and tested. (SOR VOL II P.192)
160mm HDPE PN 6
125mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
75mm HDPE PN 6
63mm HDPE PN 6
Pumpsets
Carrying out the following repair works occuring during the maintenance period in the Electrical, Mechanical and Elctro-mechanical items to bring back the scheme / components into normal running conditition as per standard specification including all labour charges, cost of materials and all incidental charges within the stipulated time limit etc., complete as specified in Clause 2.8 of General conditions of Contract Part II etc as directed by TWAD Board officers
Attending the Rewinding, Repair and Renewal works in various capacity Open Well Submersible Pumpsets
Removing the Submersible pumpset by using tripod set after disconnecting the power supply cable and delivery pipe line fittings
1HP -OWS
5HP -OWS
15HP -OWS
20HP -OWS
Transporting the pumpset from Pump House to work shop.
1HP -OWS
5HP -OWS
15HP -OWS
20HP -OWS
Rewinding the submersible motor using best quality winding wire including cost of wire, Sleeve, other insulating and fibre class materials after deducting the cost of old materials.
1HP -OWS
5HP -OWS
15HP -OWS
20HP -OWS
Reconditioning the worn-out shaft and fittings, impeller and Gun Metal/ SS Bushes including cost of lath work & labour charges etc.,
1HP -OWS
5HP -OWS
15HP -OWS
20HP -OWS
Replacement of carbon type thrust bearing and pumpside Gun Metal Bush including cost of labour charges after deducting the cost of old material
1HP -OWS
5HP -OWS
15HP -OWS
20HP -OWS
Transporting charges for Submersible pumpset from work shop to Pump House after attending repair works.
1HP -OWS
5HP -OWS
15HP -OWS
20HP -OWS
Re-erection of pumpset in the Sump / Well by using tripod set and required Rubber washer and Bolt & Nuts and connecting the power supply cable and delivery pipeline arrangements testing to trial pumping.
1HP -OWS
5HP -OWS
15HP -OWS
20HP -OWS
SUPPLY AND DELIVERY OF SERVICE CONNECTION ACCESSORIES L.T. 1100V PVC ALUMINIUM ARMOURED UNDER GROUND CABLE WITH ISI MARK
25 Sq.mm 3.5 Core
35 Sq.mm 3.5 Core
50 Sq.mm 3.5 Core
SUPPLY AND DELIVERY OF L.T. CABLES following size sq mm 3 CORE 1.1 KV GRADE ARMOURED ALUMINIUM CONDUCTOR CROSS LINKED POLY ETHYLENE INSULATED PVC SHEATHED CABLES CONFORMING TO IS 7098 (PART I)/1988 WITH ISI MARKING
35 Sq.mm 3 Core
95 Sq.mm 3 Core
SUPPLY AND DELIVERY OF PVC INSULATED AND SHEATHED following sq mm 3 CORE FLAT TYPE COPPER CABLE CONFORMING TO IS 694/1989
SUPPLY AND DELIVERY OF 150mm dia Pressure Gauge and Vaccum guage including all accessories as per specification (For Suction and Delivery to be mounted on wall on Teak Wood Board)
Supply, delivey and fixing of MOULDED CASE CIRCUIT BREAKER (MCCB) WITH THERMO MAGNETIC RELEASE - 4 Pole
Range - 63/100A
Range - 125A
Supply, delivey and fixing of RATE FOR MIXED DI-ELECTRIC CAPACITOR WITH TNEB TEST CERTIFICATE WITH ACCESSORIES INCLUDING BANKING CONFORMIING TO IS 2834.
Supply, delivey and fixing of Electro magnetic contactors of suitable capacity in AC Three Phase rating, conforming to IS/IEC 60947-4-1.
Supply, delivey and fixing of Overload Relays: Directly operated Bimetallic Thermal overload relay which operates in case of overload and also in case of under voltage with manual and auto reset mode.
Supply, delivey and fixing of Preventer – Single Phasing - Electric Motor protection device against single phasing. The device should protect the motor against single phasing, reverse phasing and unbalance supply. The device should be suitable for any auxillary device and have provisions for mounting in panel boards. Operate without need of any auxiliary supply.
Electric Motor protection device against dry running. The device should protect the motor against Dry running. The device should be suitable for any auxillary device and have provisions for mounting in panel boards. Operate without need of any auxiliary supply
Supply, delivey and fixing of FUSE UNITS (ANCHOR /EQUIVALENT)
63 Amps Porcelain fuse unit (500 V)
100 Amps Porcelain fuse unit (500 V)
200 Amps Porcelain fuse unit (500 V)
Supply, delivey and fixing of CHANGE OVER SWITCHES
16 Amps three phase 500 V 4 pole Change over switch
32 Amps three phase 500 V 4 pole Change over switch
100 Amps three phase 500 V 4 pole Change over switch
Supply, delivey and fixing of PVC INSULATED SINGLE CORE MULTI STRAND FIRE RETARDANT FLEXIBLE COPPER CABLE WITH ISI MARK CONFORMING TO IS
Supply, delivey and fixing of HRC - FUSES - HIGHER END
HRC - 16 Amps
HRC - 32 Amps
HRC - 63 Amps
HRC - 125 Amps
Supply and delivery of the following Electrical Works :consumable items at the site of work to carryout the general maintenace works
Voltmeter Digital - Three Phase Class 1-AC
Ammeter Digital - Three Phase Class 1-1A
20W 4 Feet LED Fitting with LED (Higher end)
LED OUTDOOR FITTINGS (LIGHT EMITTING DIODE) LOWER END 25W LED Street Light Fitting with LED
Supply and delivery of the following consumable items for Pump Set repairs at the site of work to carryout the general maintenace works
50mm GM Gate valve
80mm GM Gate valve
R I Sheet
Bolts and Nuts - All sizes
50mm GI Pipe
65mm GI Pipe
80mm GI Pipe
100mm GI pipe
Supply, delivery and fixing of DI D/F Gate sluice/scour valves (soft seated) resilient seated soft sealing Gate Valves(Sluice Valves) with body Bonnet of Ductile cast iron of Grade GGG 40 or equivalent grade, Wedge fully rubber lined with EPDM replaceable spindle nut without gland packing and with 3 O- Ring protection on the shaft and seals of NBR and the valves should be of Vacuum tight and 100% leak proof with face to face dimensions as per BS 5163- 89/ISI 14846-2000/DIN 3202 F4. All the valves should be with electrostatic powder coating both inside and out side with pocket less straight through body passage. All the valves are to be compatible for buried application with pressure rating PN 10/16 and with 5 years warranty.
100mm DI Gate Valve
Supply, delivey and fixing of C.I. DOUBLE AIR VALVE AS PER ISI 14845/2000 AND WITH 5 YEARS WARRANTY
50mm CI Air Valve
SUMP CLEANING
Cleaning of all storage points like sumps, elevated reservoirs of various capacities available in this scheme at a frequency of once in two months including scrapping the inner side of compartment completely, scouring / dewatering / desilting using required machineries, materials, labour and all other incidental charges, application of bleaching powder/ solution etc complete.
For 5000 to 15000 lit cap sump
For 30001 to 45000 lit cap sump
Desilting light or sandysoil or silt from collection well below water level including the charges for special tools & plants and air compressor etc complete
Provision for replacement of existing pipelines which are damaged due to widening of SH, NH and NHAI Roads and other line departments
Bleaching powder of 34% concentration as per standard specification.
COMBINED WATER SUPPLY SCHEME TO VINNAMANGALAM AND 13 OTHER HABITATIONS IN CHEYYAR OF TIRUVANNAMALAI DISTRICT
Operation and Maintenance of the Electro Mechanical installations, equipments, components, pipelines valves and appurtenances, water retaining structures including protecton of all schemee components from damages/ theft undertaking legal actions for such untoward incidents, preventive maintenance, disinfection and deliverance of water as per quality standards and supply of earmarked quantity of water to the beneficiaries as per Annexure .........., carrying out the O&M as per standard operating procedures, Acts and rules in force and as directed by TWAD Board Oficers and excluding cost towards attending leak, burst repair and replacement works to electro mechanical installations consumables for disinfection of water, cleaning of all water retaining structure, electricity .
Repair & Renewals and Leak & Bursts :
Attending Leaks in the PVC pipelines of this CWSS for the following items, as per the standard procedure including earthwork excavation, dewatering, removing, relaying, jointing, civil works, cost of materials and all other incidental charges, etc complete within the stipulated time limit as directed by the TWAD Board officers.
PVC 4 KSC Pipes_Minor Leak
90mm OD PVC 4 KSC pipes_Minor Leak
110mm OD PVC 4 KSC pipes_Minor Leak
140mm OD PVC 4 KSC pipes_Minor Leak
PVC 4 KSC Pipes_Major Leak
90mm OD PVC 4 KSC pipes_Major Leak
110mm OD PVC 4 KSC pipes_Major Leak
140mm OD PVC 4 KSC pipes_Major Leak
Attending Leaks/Bursts in the HDPE pipelines of this CWSS for the following items, as per the standard procedure including earthwork excavation, dewatering, removing, relaying, jointing by Electro fusion/butt Joint, civil works, cost of materials and all other incidental charges, etc complete within the stipulated time limit as directed by the TWAD Board officers.
HDPE PN 6 Pipes_Minor Leaks
110mm HDPE PN 6 pipes_Minor Leak
HDPE PN 6 Pipes_Major Leaks
110mm HDPE PN 6 pipes_Major Leak
Attending leaks and bursts in GI pipes of various sizes including Supply and delivery of following G I PIPES (MEDIUM) AS PER IS 1239/PART I/2004 and Lowering GI pipes and specials in the trenches and laying to proper grade and alignment, jointing with GI Specials and as directed by the TWAD Officers
50mm GI Pipe leak above GL
65mm GI Pipe leak above GL
80mm GI Pipe leak above GL
100mm GI Pipe leak above GL
125mm GI Pipe leak above GL
Labour for cutting open B.T. Roads (or) Maccadam road for laying water mains - 15 cm thick (SOR VOL II P.195)
For all size Pumping mains
Road Restoration with PCC 1:2:4 using 20 mm HBGS for the Concrete Road cut Portion after the pipes are laid, joined and tested complete and as directed by TWAD Board Officers - 15 cm thick
For all size Pumping mains
MATERIALS
Supply and delivery of following sizes of HDPE PIPES - PE 100 AS PER IS 4984/2016 (Pre-Compounded Resin) inclusive of transportation charges to stockyard excluding unloading anywhere in Tamilnadu etc, complete and as directed by the TWAD Board officers. (SOR VOL II P.14)
140mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
CIVIL WORKS
Earth work excavation and depositing on bank with initial lead of 10 m and initial lift of 2m in narrow trenches for laying of pipes for water supply in the following types of soil
Hard stiff clay, stiff black cotton, hard red earth, shales, murrum gravel, stoney earth and earth mixed with small size boulders and hard gravelly soil. (SOR VOL II P.192)
140mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
Lowering HDPE pipes and specials to trench and laying to proper grade and alignment and as directed by the TWAD Officers. (SOR VOL II P.171)
140mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
Jointing HDPE Pipes and Specials by butt fusion welding / electro fusion welding joints using fusion equipment as per ISO 21307-2011 and as per IS 7634 (part-2) : 2012 including cost of hire charges for butt fusion equipment power supply arrangements etc., complete as per directed by TWAD Board Officers. (SOR VOL II P.184)
140mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
Refiling with excavated sand or other loose soil complying with standerd specification in layers of 15 cm thick well rammed and consolidated after pipes and specials are laid and tested. (SOR VOL II P.192)
140mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
Pumpsets
Carrying out the following repair works occuring during the maintenance period in the Electrical, Mechanical and Elctro-mechanical items to bring back the scheme / components into normal running conditition as per standard specification including all labour charges, cost of materials and all incidental charges within the stipulated time limit etc., complete as specified in Clause 2.8 of General conditions of Contract Part II etc as directed by TWAD Board officers
Attending the Rewinding, Repair and Renewal works in various capacity Open Well Submersible Pumpsets
Removing the Submersible pumpset by using tripod set after disconnecting the power supply cable and delivery pipe line fittings
5HP -OWS
10HP -OWS
Transporting the pumpset from Pump House to work shop.
5HP -OWS
10HP -OWS
Rewinding the submersible motor using best quality winding wire including cost of wire, Sleeve, other insulating and fibre class materials after deducting the cost of old materials.
5HP -OWS
10HP -OWS
Reconditioning the worn-out shaft and fittings, impeller and Gun Metal/ SS Bushes including cost of lath work & labour charges etc.,
5HP -OWS
10HP -OWS
Replacement of carbon type thrust bearing and pumpside Gun Metal Bush including cost of labour charges after deducting the cost of old material
5HP -OWS
10HP -OWS
Transporting charges for Submersible pumpset from work shop to Pump House after attending repair works.
5HP -OWS
10HP -OWS
Re-erection of pumpset in the Sump / Well by using tripod set and required Rubber washer and Bolt & Nuts and connecting the power supply cable and delivery pipeline arrangements testing to trial pumping.
5HP -OWS
10HP -OWS
SUPPLY AND DELIVERY OF SERVICE CONNECTION ACCESSORIES L.T. 1100V PVC ALUMINIUM ARMOURED UNDER GROUND CABLE WITH ISI MARK
25 Sq.mm 3.5 Core
35 Sq.mm 3.5 Core
50 Sq.mm 3.5 Core
SUPPLY AND DELIVERY OF L.T. CABLES following size sq mm 3 CORE 1.1 KV GRADE ARMOURED ALUMINIUM CONDUCTOR CROSS LINKED POLY ETHYLENE INSULATED PVC SHEATHED CABLES CONFORMING TO IS 7098 (PART I)/1988 WITH ISI MARKING
35 Sq.mm 3 Core
50 Sq.mm 3 Core
SUPPLY AND DELIVERY OF PVC INSULATED AND SHEATHED following sq mm 3 CORE FLAT TYPE COPPER CABLE CONFORMING TO IS 694/1989
SUPPLY AND DELIVERY OF 150mm dia Pressure Gauge and Vaccum guage including all accessories as per specification (For Suction and Delivery to be mounted on wall on Teak Wood Board)
Supply, delivey and fixing of MOULDED CASE CIRCUIT BREAKER (MCCB) WITH THERMO MAGNETIC RELEASE - 4 Pole
Range - 63/100A
Supply, delivey and fixing of RATE FOR MIXED DI-ELECTRIC CAPACITOR WITH TNEB TEST CERTIFICATE WITH ACCESSORIES INCLUDING BANKING CONFORMIING TO IS 2834.
Supply, delivey and fixing of Electro magnetic contactors of suitable capacity in AC Three Phase rating, conforming to IS/IEC 60947-4-1.
Supply, delivey and fixing of Overload Relays: Directly operated Bimetallic Thermal overload relay which operates in case of overload and also in case of under voltage with manual and auto reset mode.
Supply, delivey and fixing of Preventer – Single Phasing - Electric Motor protection device against single phasing. The device should protect the motor against single phasing, reverse phasing and unbalance supply. The device should be suitable for any auxillary device and have provisions for mounting in panel boards. Operate without need of any auxiliary supply.
Electric Motor protection device against dry running. The device should protect the motor against Dry running. The device should be suitable for any auxillary device and have provisions for mounting in panel boards. Operate without need of any auxiliary supply
Supply, delivey and fixing of FUSE UNITS (ANCHOR /EQUIVALENT)
63 Amps Porcelain fuse unit (500 V)
100 Amps Porcelain fuse unit (500 V)
200 Amps Porcelain fuse unit (500 V)
Supply, delivey and fixing of CHANGE OVER SWITCHES
16 Amps three phase 500 V 4 pole Change over switch
32 Amps three phase 500 V 4 pole Change over switch
63 Amps three phase 500 V 4 pole Change over switch
100 Amps three phase 500 V 4 pole Change over switch
Supply, delivey and fixing of PVC INSULATED SINGLE CORE MULTI STRAND FIRE RETARDANT FLEXIBLE COPPER CABLE WITH ISI MARK CONFORMING TO IS
Supply, delivey and fixing of HRC - FUSES - HIGHER END
HRC - 16 Amps
HRC - 32 Amps
HRC - 63 Amps
HRC - 125 Amps
Supply and delivery of the following Electrical Works :consumable items at the site of work to carryout the general maintenace works
Voltmeter Digital - Three Phase Class 1-AC
Ammeter Digital - Three Phase Class 1-1A
20W 4 Feet LED Fitting with LED (Higher end)
LED OUTDOOR FITTINGS (LIGHT EMITTING DIODE) LOWER END 25W LED Street Light Fitting with LED
Supply and delivery of the following consumable items for Pump Set repairs at the site of work to carryout the general maintenace works
50mm GM Gate valve
65mm GM Gate valve
80mm GM Gate valve
R I Sheet
Bolts and Nuts - All sizes
50mm GI Pipe
65mm GI Pipe
80mm GI Pipe
100mm GI pipe
Supply, delivery and fixing of DI D/F Gate sluice/scour valves (soft seated) resilient seated soft sealing Gate Valves(Sluice Valves) with body Bonnet of Ductile cast iron of Grade GGG 40 or equivalent grade, Wedge fully rubber lined with EPDM replaceable spindle nut without gland packing and with 3 O- Ring protection on the shaft and seals of NBR and the valves should be of Vacuum tight and 100% leak proof with face to face dimensions as per BS 5163- 89/ISI 14846-2000/DIN 3202 F4. All the valves should be with electrostatic powder coating both inside and out side with pocket less straight through body passage. All the valves are to be compatible for buried application with pressure rating PN 10/16 and with 5 years warranty.
100mm DI Gate Valve
Supply, delivey and fixing of C.I. DOUBLE AIR VALVE AS PER ISI 14845/2000 AND WITH 5 YEARS WARRANTY
50mm CI Air Valve
SUMP CLEANING
Cleaning of all storage points like sumps, elevated reservoirs of various capacities available in this scheme at a frequency of once in two months including scrapping the inner side of compartment completely, scouring / dewatering / desilting using required machineries, materials, labour and all other incidental charges, application of bleaching powder/ solution etc complete.
For 15001 to 30000 lit cap sump
Desilting light or sandysoil or silt from collection well below water level including the charges for special tools & plants and air compressor etc complete
Bleaching powder of 34% concentration as per standard specification.
Item Rate BoQ
BoQ_Ver4.0
Name of the Bidder/ Bidding Firm / Company :
PRICE SCHEDULE-A3 (This BOQ template must not be modified/replaced by the bidder and the same should be uploaded after filling the relevent columns, else the bidder is liable to be rejected for this tender. Bidders are allowed to enter the Bidder Name and Values only)
NUMBER #
COMBINED WATER SUPPLY SCHEME TO SATHANUR AND 45 OTHER HABITATIONS IN TIRUVANNAMALAI DISTRICT
Operation and Maintenance of the Electro Mechanical installations, equipments, components, pipelines valves and appurtenances, water retaining structures including protecton of all schemee components from damages/ theft undertaking legal actions for such untoward incidents, preventive maintenance, disinfection and deliverance of water as per quality standards and supply of earmarked quantity of water to the beneficiaries as per Annexure .........., carrying out the O&M as per standard operating procedures, Acts and rules in force and as directed by TWAD Board Oficers and excluding cost towards attending leak, burst repair and replacement works to electro mechanical installations consumables for disinfection of water, cleaning of all water retaining structure, electricity . (2.479 MLD x 365 Days = 904.835 MLD)
Repair & Renewals and Leak & Bursts :
Attending Leaks/Bursts in the PVC pipelines of this CWSS for the following items, as per the standard procedure including earthwork excavation, dewatering, removing, relaying, jointing, civil works, cost of materials and all other incidental charges, etc complete within the stipulated time limit as directed by the TWAD Board officers.
PVC 4 KSC Pipes_Minor Leak
90mm OD PVC 4 KSC pipes_Minor Leak
110mm OD PVC 4 KSC pipes_Minor Leak
140mm OD PVC 4 KSC pipes_Minor Leak
PVC 4 KSC Pipes_Major Leak
90mm OD PVC 4 KSC pipes_Major Leak
110mm OD PVC 4 KSC pipes_Major Leak
140mm OD PVC 4 KSC pipes_Major Leak
PVC 6 KSC Pipes_Minor Leak
90mm OD PVC 6 KSC pipes_Minor Leak
110mm OD PVC 6 KSC pipes_Minor Leak
140mm OD PVC 6 KSC pipes_Minor Leak
PVC 6 KSC Pipes_Major Leak
90mm OD PVC 6 KSC pipes_Major Leak
110mm OD PVC 6 KSC pipes_Major Leak
140mm OD PVC 6 KSC pipes_Major Leak
Attending Leaks/Bursts in the HDPE pipelines of this CWSS for the following items, as per the standard procedure including earthwork excavation, dewatering, removing, relaying, jointing by Electro fusion/butt Joint, civil works, cost of materials and all other incidental charges, etc complete within the stipulated time limit as directed by the TWAD Board officers.
HDPE PN 6 Pipes_Minor Leaks
90mm HDPE PN 6 pipes_Minor Leak
110mm HDPE PN 6 pipes_Minor Leak
140mm HDPE PN 6 pipes_Minor Leak
200mm HDPE PN 6 pipes_Minor Leak
HDPE PN 6 Pipes_Major Leaks
90mm HDPE PN 6 pipes_Major Leak
110mm HDPE PN 6 pipes_Major Leak
140mm HDPE PN 6 pipes_Major Leak
200mm HDPE PN 6 pipes_Major Leak
Attending leaks and bursts in GI pipes of various sizes including Supply and delivery of following G I PIPES (MEDIUM) AS PER IS 1239/PART I/2004 and Lowering GI pipes and specials in the trenches and laying to proper grade and alignment, jointing with GI Specials and as directed by the TWAD Officers
80mm GI Pipe leak above GL
100mm GI Pipe leak above GL
125mm GI Pipe leak above GL
150mm GI Pipe leak above GL
Attending joint (Collar) Leaks in the AC pipelines of this CWSS for the following items, as per the standard procedure including earthwork excavation, dewatering, removing, relaying, jointing, civil works, cost of materials and all incidental charges, etc complete within the stipulated time limit as specified in Clause 2.6.4 of General conditions of Contract
AC Pipe_Collar Leak
200mm AC_Collar Leak
250mm AC_Collar Leak
300mm AC_Collar Leak
350mm AC_Collar Leak
AC Pipe_Minor Leak centre crack
200mm AC Pipe_MS Cut Barrel
250mm AC Pipe_MS Cut Barrel
300mm AC Pipe_MS Cut Barrel
350mm AC Pipe_MS Cut Barrel
Attending joint Leaks and center crack in the PSC pipelines of this CWSS for the following items, as per the standard procedure including earthwork excavation, dewatering, removing, relaying, jointing, civil works, cost of materials and all incidental charges, etc complete within the stipulated time limit as specified in Clause 2.6.4 of General conditions of Contract
350mm PSC Pipe Collar Leak
350mm PSC Pipe Centre Crack MS Cut Barrel
Attending Leaks/Bursts in the O-PVC pipelines of this CWSS for the following items, as per the standard procedure including earthwork excavation, dewatering, removing, relaying, jointing, civil works, cost of materials and all incidental charges, etc complete within the stipulated time limit as specified in Clause 2.6.4 of General conditions of Contract
250mm O-PVC Pipe Leak
315mm O-PVC Pipe Leak
Attending Leaks/Bursts in the DI pipelines of this CWSS for the following items, as per the standard procedure including earthwork excavation, dewatering, removing, relaying, jointing, civil works, cost of materials and all incidental charges, etc complete within the stipulated time limit as specified in Clause 2.6.4 of General conditions of Contract
DI Pipes_Minor Leak
350mm DI pipes - Minor leak
Attending Leaks/Bursts in the MS pipelines damaged by highways, local bodies and etc., of this CWSS for the following items, as per the standard procedure including earthwork excavation, dewatering, removing, relaying, jointing, civil works, cost of materials and all incidental charges, etc complete within the stipulated time limit as specified in Clause 2.6.4 of General conditions of Contract
350mm MS pipes_Below GL
Labour for cutting open B.T. Roads (or) Maccadam road for laying water mains - 15 cm thick (SOR VOL II P.195)
For all size Pumping mains
Road Restoration with PCC 1:2:4 using 20 mm HBGS for the Concrete Road cut Portion after the pipes are laid, joined and tested complete and as directed by TWAD Board Officers - 15 cm thick
For all size Pumping mains
Supply and delivery of following sizes of UN PLASTICIZED O-PVC PIPES FOR POTABLE WATER SUPPLY AS PER IS 16647 / 2017 inclusive of transportation charges to stockyard excluding unloading anywhere in Tamilnadu etc, complete and as directed by the TWAD Board officers. (SOR VOL II P.11)
250mm O-PVC PIPE PN 12.5 Class 500
315mm O-PVC PIPE PN 12.5 Class 500
Supply and delivery of following sizes of HDPE PIPES - PE 100 AS PER IS 4984/2016 (Pre-Compounded Resin) inclusive of transportation charges to stockyard excluding unloading anywhere in Tamilnadu etc, complete and as directed by the TWAD Board officers. (SOR VOL II P.14)
200mm HDPE PN 6
140mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
Earth work excavation and depositing on bank with initial lead of 10 m and initial lift of 2m in narrow trenches for laying of pipes for water supply in the following types of soil
Hard stiff clay, stiff black cotton, hard red earth, shales, murrum gravel, stoney earth and earth mixed with small size boulders and hard gravelly soil. (SOR VOL II P.192)
250mm O PVC
315mm O PVC
200mm HDPE PN 6
140mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
Lowering of OPVC Pipes and specials in the trenches and laying to proper grade and alignment and as directed by the TWAD Officers. (SOR VOL II P.161)
250mm O PVC
315mm O PVC
Lowering HDPE pipes and specials to trench and laying to proper grade and alignment and as directed by the TWAD Officers. (SOR VOL II P.171)
200mm HDPE PN 6
140mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
Jointing OPVC-S/S pipes and specials with rubber gaskets (tyton joint) including cost of lubricants. (including cost of jointing materials) (SOR VOL II P.164)
250mm O PVC - 6m Length
315mm O PVC - 6m Length
Jointing HDPE Pipes and Specials by butt fusion welding / electro fusion welding joints using fusion equipment as per ISO 21307-2011 and as per IS 7634 (part-2) : 2012 including cost of hire charges for butt fusion equipment power supply arrangements etc., complete as per directed by TWAD Board Officers. (SOR VOL II P.184)
200mm HDPE PN 6
140mm HDPE PN 6
110mm HDPE PN 6
Refiling with excavated sand or other loose soil complying with standerd specification in layers of 15 cm thick well rammed and consolidated after pipes and specials are laid and tested. (SOR VOL II P.192)
250mm O PVC
315mm O PVC
200mm HDPE PN 6
140mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
Pumpsets
Carrying out the following repair works occuring during the maintenance period in the Electrical, Mechanical and Elctro-mechanical items to bring back the scheme / components into normal running conditition as per standard specification including all labour charges, cost of materials and all incidental charges within the stipulated time limit etc., complete as specified in Clause 2.8 of General conditions of Contract Part II etc as directed by TWAD Board officers
Attending the Rewinding, Repair and Renewal works in various capacity Open Well Submersible Pumpsets
Removing the Submersible pumpset by using tripod set after disconnecting the power supply cable and delivery pipe line fittings
1HP -OWS
3HP -OWS
5HP -OWS
7.5HP -OWS
10HP -OWS
15HP -OWS
Transporting the pumpset from Pump House to work shop.
1HP -OWS
3HP -OWS
5HP -OWS
7.5HP -OWS
10HP -OWS
15HP -OWS
Rewinding the submersible motor using best quality winding wire including cost of wire, Sleeve, other insulating and fibre class materials after deducting the cost of old materials.
1HP -OWS
3HP -OWS
5HP -OWS
7.5HP -OWS
10HP -OWS
15HP -OWS
Reconditioning the worn-out shaft and fittings, impeller and Gun Metal/ SS Bushes including cost of lath work & labour charges etc.,
1HP -OWS
3HP -OWS
5HP -OWS
7.5HP -OWS
10HP -OWS
15HP -OWS
Replacement of carbon type thrust bearing and pumpside Gun Metal Bush including cost of labour charges after deducting the cost of old material
1HP -OWS
3HP -OWS
5HP -OWS
7.5HP -OWS
10HP -OWS
15HP -OWS
Transporting charges for Submersible pumpset from work shop to Pump House after attending repair works.
1HP -OWS
3HP -OWS
5HP -OWS
7.5HP -OWS
10HP -OWS
15HP -OWS
Re-erection of pumpset in the Sump / Well by using tripod set and required Rubber washer and Bolt & Nuts and connecting the power supply cable and delivery pipeline arrangements testing to trial pumping.
1HP -OWS
3HP -OWS
5HP -OWS
7.5HP -OWS
10HP -OWS
15HP -OWS
Attending the Rewinding, Repair and Renewal works in Monoblock Pumpset
3HP_Monoblock
Removing the Monblock Centrifugal Pumpset from the Bed assembly by using contractors tools and materials after disconnecting the power supply cable and delivery pipe line fittings with required dummy plate arrangements.
Transporting the pumpset from the Pumping Station to work shop.
Removing the Burnt winding materials from the stator slots and cleaning the stator and rotor assembly by using contractor tools and materials
Reconditioning the worn-out shaft and fittings, impeller and Rope gland bush including cost of lath work & labour charges etc.,
Rewinding the Monblock Centrifugal Motor using best quality winding wire including cost of wire, Sleeve, other insulating and fibre class materials after deducting the cost of old materials.
Replacement of driven end (No: XXXX) and Non driven end (No:XXXX) Bearings suitable for Monblock Centrifugal Motor including the cost of Bearing and labour charges after deducting the cost of old materials.
Replacement of cooling fan at motor end and Terminal Board for suitable for Monblock Centrifugal Pumpset and labour charges after deducting the cost of old materials.
Transporting charges for Monblock Centrifugal Pumpset from work shop to Pump House after attending repair works.
Re-erection of pumpset in the Sump / Well by using required Rubber washer and Bolt & Nuts and connecting the power supply cable and delivery pipe line arrangements, testing and trial pumping.
Attending the Rewinding and replacement of bearings of Induction Motor for Horizontal Split Casing Pumpsets
20HP -HSC_Motor
Charges for removing the motor from bed after disconnection of power supply cable, Earthing line and Coupling arrangements by using contractor tools and materials.
Transportation charges for conveying the motor from the Booster Station to Our work shop including loading and unloading charges.
Labour Charges for removing the two end side cover with fan arrangements and the damaged driven end and non driven end bearings.
Charges for removing the burnt wires from the rotor assembly and cleaning and checking the slots of rotor and labour charges for rewinding of Centrifugal Squirrel Cage Induction Motor after deducting the cost of old materials and including suppy and delivery of Class ‘F’ Insulation Super enameled Copper wire, required for rewinding and Fiber Glass wire, Fiber Glass Sleeves, Class ‘F’ insulation paper, Copper Socket and FG thread required for rewinding of Squirrel Cage Induction Motor
Labour Charges for reconditioning the worn out shaft for driven end and non driven end bearing seating, knurling, bend checking, and etc.,
Supply and delivery of Driven End and Non Driven End bearings suitable for the required Induction Motor
Labour Charges fixing the DE and NDE bearings correctly and neatly with required lubrications by contractors tools & Materials
Transportation charges for conveying the motor from work shop to Pumping Station
Charges for reassembling the motor with bed and pump coupling, alignment checking connecting power supply cable, including required bolt and Nuts and testing trial running etc.,
Attending the Repair and Reconditioning works of various capacities of Horizontal Split Casing Pumpsets
20HP -HSC_Pump
Charges for removing the motor from bed assembly after dismantling of Coupling arrangements and removing the pump assembly and including the provision of dummy flange arrangements by using contractor tools and materials.
Transportation charges for conveying the Pump assembly from the Pumping Station to work shop including loading and unloading charges.
Labour Charges for removing the impeller by using hydralic system, DE and NDE Bearings
Labour Charges for reconditioning the worn out shaft including welding the shaft to suit the impeller and suit the driven end and non driven end bearing seating, knurling, bend checking and etc.,
Supply, delivery and fixing of Shaft sleeves in Gun metal including machining charges and making key ways after deducting the scrap materials
Balancing of Rotor with impeller both dyanamically and Hydralically by using required dyanamic balancing machine
Supply, delivery and fixing of Gunmetal seal rings for impeller neck including machining charges after deducting the scrap materials
Supply and delivery of Driven End and Non Driven End bearings
Labour Charges fixing the DE and NDE bearings correctly and neatly with required lubrications by contractors tools & Materials
Transportation charges for conveying the Pump assembly from work shop to Pumping Station.
Charges for reassembling the Pump with Motor by using pulley and alignment checking, including required bolt and Nuts and testing trial running etc.,
Attending the Rewinding and replacement of bearings of Induction Motor for Vertical Turbine Pumpset
60HP -VT_Motor
Charges for removing the motor from bed after disconnection of power supply cable, Earthing line and Coupling arrangements by using contractor tools and materials.
Transportation charges for conveying the motor from the Station to Our work shop including loading and unloading charges.
Labour Charges for removing the two end side cover with fan arrangements and Dismantling the damaged NDE Side ball Bearing from the motor after removing the Rachet assembly load bearing safely and Fixing the New ball Bearing in the appropriate place with required lubricants without any damage to the motor shaft and winding after deducting the old damaged materials.
Charges for removing the burnt wires from the rotor assembly and cleaning and checking the slots of rotor and labour charges for rewinding of Centrifugal Squirrel Cage Induction Motor after deducting the cost of old materials and including suppy and delivery of Class ‘F’ Insulation Super enameled Copper wire, required for rewinding and Fiber Glass wire, Fiber Glass Sleeves, Class ‘F’ insulation paper, Copper Socket and FG thread required for rewinding of Squirrel Cage Induction Motor
Labour Charges for reconditioning the worn out shaft for driven end and non driven end bearing seating, knurling, bend checking, and etc.,
Supply and delivery of Non Driven End Deep Grove ball Bearing SKF Make suitable for the Squirrel Gage Induction Motor.
Labour Charges fixing the NDE bearings correctly and neatly with required lubrications by contractors tools & Materials
Transportation charges for conveying the motor from work shop to pumping Station
Charges for reassembling the motor with bed and pump coupling, alignment checking connecting power supply cable, including required bolt and Nuts and testing trial running etc.,
Attending the Repair and Reconditioning works of various capacities of Vertical Turbine Pumps
60HP -VT_Pump
Charges for Removing the Hollow shaft Squirrel cage Induction Motor after disconnecting the Power supply Cable, Discharge Head, Head Shaft and Stuffing Box by using contractor tools at Collector Well / Collection Sump
Charges for removing the all Column pipes of VT Pumpset each 1.5 m / 2.00 m to length and bowl assemblly for attending Pump repair works
Transportation charges for conveying the VT Pump bowl assembly from Collector Well Pump room to Work Shop including usage of trolley along the Foot bridge and Van
Reconditioning of Stuffing Box for providing bronze bush suitable for fixing thr Rope Gland and Head Shaft to avoid frequent damaging of rope and to avoid spreading of more leakage water from the Rope Gland including lath works etc., complete.
Charges for Lathe work of reconditioning of Pump SS Shaft with balancing, SS Bushes and sleeves, charges for Spider bore nd outer dimension phase out lath works, reconditioning of impeller and impeller ring & charges fixing the bearing and bronze bushes in the bowl assembly including correct setting of impeller allignment etc complete
Transportation charges for conveying the VT Pump bowl assembly from our work shop to Collector Well Pump room including usage of trolley along the Foot bridge and Van
Charges for reassembling the all Column pipes of Turbine Pump set and bowl assemblly after attending Pump repair works in the proper allignment after attending the cleaning and painting work in the coloumn pipe and body of the bowl assembly
Re errection of reconditioned stuffing box, new Head shaft, Discharge head and Motor, fixing the Rachet load bearing assembly including filling of required 90 grade oil and Connecting the 440V AC incoming Cable to the Motor Terminal and fixing new rope in the rope gland and Checking Motor Pumpset Alignment and Rotation and testing with load etc.,Complete
SUPPLY AND DELIVERY OF SERVICE CONNECTION ACCESSORIES L.T. 1100V PVC ALUMINIUM ARMOURED UNDER GROUND CABLE WITH ISI MARK
25 Sq.mm 3.5 Core
35 Sq.mm 3.5 Core
50 Sq.mm 3.5 Core
70 Sq.mm 3.5 Core
95 Sq.mm 3.5 Core
120 Sq.mm 3.5 Core
SUPPLY AND DELIVERY OF L.T. CABLES following size sq mm 3 CORE 1.1 KV GRADE ARMOURED ALUMINIUM CONDUCTOR CROSS LINKED POLY ETHYLENE INSULATED PVC SHEATHED CABLES CONFORMING TO IS 7098 (PART I)/1988 WITH ISI MARKING
25 Sq.mm 3 Core
35 Sq.mm 3 Core
50 Sq.mm 3 Core
70 Sq.mm 3Core
SUPPLY AND DELIVERY OF PVC INSULATED AND SHEATHED following sq mm 3 CORE FLAT TYPE COPPER CABLE CONFORMING TO IS 694/1989
SUPPLY AND DELIVERY OF 150mm dia Pressure Gauge and Vaccum guage including all accessories as per specification (For Suction and Delivery to be mounted on wall on Teak Wood Board)
Supply, delivey and fixing of MOULDED CASE CIRCUIT BREAKER (MCCB) WITH THERMO MAGNETIC RELEASE - 4 Pole
Range - 63/100A
Range - 125A
Range - 160A
Range - 250A
Supply, delivey and fixing of RATE FOR MIXED DI-ELECTRIC CAPACITOR WITH TNEB TEST CERTIFICATE WITH ACCESSORIES INCLUDING BANKING CONFORMIING TO IS 2834.
Supply, delivey and fixing of Electro magnetic contactors of suitable capacity in AC Three Phase rating, conforming to IS/IEC 60947-4-1.
Supply, delivey and fixing of Overload Relays: Directly operated Bimetallic Thermal overload relay which operates in case of overload and also in case of under voltage with manual and auto reset mode.
Supply, delivey and fixing of Preventer – Single Phasing - Electric Motor protection device against single phasing. The device should protect the motor against single phasing, reverse phasing and unbalance supply. The device should be suitable for any auxillary device and have provisions for mounting in panel boards. Operate without need of any auxiliary supply.
Electric Motor protection device against dry running. The device should protect the motor against Dry running. The device should be suitable for any auxillary device and have provisions for mounting in panel boards. Operate without need of any auxiliary supply
Supply, delivey and fixing of FUSE UNITS (ANCHOR /EQUIVALENT)
63 Amps Porcelain fuse unit (500 V)
100 Amps Porcelain fuse unit (500 V)
200 Amps Porcelain fuse unit (500 V)
Supply, delivey and fixing of CHANGE OVER SWITCHES
16 Amps three phase 500 V 4 pole Change over switch
32 Amps three phase 500 V 4 pole Change over switch
63 Amps three phase 500 V 4 pole Change over switch
100 Amps three phase 500 V 4 pole Change over switch
125 Amps three phase 500 V 4 pole Change over switch
Supply, delivey and fixing of PVC INSULATED SINGLE CORE MULTI STRAND FIRE RETARDANT FLEXIBLE COPPER CABLE WITH ISI MARK CONFORMING TO IS
Supply, delivey and fixing of HRC - FUSES - HIGHER END
HRC - 16 Amps
HRC - 32 Amps
HRC - 63 Amps
HRC - 125 Amps
HRC - 160 Amps
HRC - 200 Amps
Supply and delivery of the following Electrical Works :consumable items at the site of work to carryout the general maintenace works
Voltmeter Digital - Three Phase Class 1-AC
Ammeter Digital - Three Phase Class 1-1A
20W 4 Feet LED Fitting with LED (Higher end)
LED OUTDOOR FITTINGS (LIGHT EMITTING DIODE) LOWER END 25W LED Street Light Fitting with LED
Supply and delivery of the following consumable items for Pump Set repairs at the site of work to carryout the general maintenace works
50mm GM Gate valve
65mm GM Gate valve
80mm GM Gate valve
100mm GM Gate valve
R I Sheet
Bolts and Nuts - All sizes
50mm GI Pipe
65mm GI Pipe
80mm GI Pipe
100mm GI pipe
125mm GI pipe
150mm GI pipe
Supply, delivery and fixing of DI D/F Gate sluice/scour valves (soft seated) resilient seated soft sealing Gate Valves(Sluice Valves) with body Bonnet of Ductile cast iron of Grade GGG 40 or equivalent grade, Wedge fully rubber lined with EPDM replaceable spindle nut without gland packing and with 3 O- Ring protection on the shaft and seals of NBR and the valves should be of Vacuum tight and 100% leak proof with face to face dimensions as per BS 5163- 89/ISI 14846-2000/DIN 3202 F4. All the valves should be with electrostatic powder coating both inside and out side with pocket less straight through body passage. All the valves are to be compatible for buried application with pressure rating PN 10/16 and with 5 years warranty.
100mm DI Gate Valve
150mm DI Gate Valve
200mm DI Gate Valve
250mm DI Gate Valve
300mm DI Gate Valve
Manufacture, Supply and Delivery of Tamper proof DI single chamber double orifice triple function (ventilating, admiting & ventilating during operation) air release valve with pressure rating PN 10/16 with body and cover made of Ductile Iron of Grade GGG 40 or GGG 50, conforming to IS 1865 with Food Grade Epoxy Powder coating (EP-P) inside and for outside of colour blue RAL 5005. All internal parts such as float, shell etc., cover bolts, made of Austenitic alloy steel of SS AISI 304/316. The float shall be made of Polytetrafluroethylene/ Austenitic alloy steel of AISI 304/316. Gaskets and seals of EPDM / Neoprene rubber for TWAD Board works anywhere in Tamil Nadu and with 5 years warranty
50mm DI Air Valve
80mm DI Air Valve
Supply, delivey and fixing of C.I. DOUBLE AIR VALVE AS PER ISI 14845/2000 AND WITH 5 YEARS WARRANTY
40mm CI Air Valve
50mm CI Air Valve
80mm CI Air Valve
SUMP CLEANING
Cleaning of all storage points like sumps, elevated reservoirs of various capacities available in this scheme at a frequency of once in two months including scrapping the inner side of compartment completely, scouring / dewatering / desilting using required machineries, materials, labour and all other incidental charges, application of bleaching powder/ solution etc complete.
For 75001 to 100000 lit cap sump
For 175001 to 200000 lit cap sump
For 200001 to 300000 lit cap sump
Desilting light or sandysoil or silt from collection well below water level including the charges for special tools & plants and air compressor etc complete
Supply, delivery and application of disinfection dosages as per standard norms / guidelines including cost of all disinfectents (Such as bleaching powder, chlorine cylinder, silver ionization rods, sodium hypochlorite solution, common salt as applicable to this CWSS), labour charges and all incidental charges for disinfection of the water supplied from this CWSS to ensure the portable quality of disinfected water at all delivery points / tail ends, testing of water samples including additional / required / instructed dosage during the period of Flood/ Calamities etc., complete.
Supply delivery of Bleaching Powder as per Relevant IS Specification
Supply delivery of Liquid Chlorine as per Relevant IS Specification
Supply delivery of Alum as per Relevant IS Specification
COMBINED WATER SUPPLY SCHEME TO VANAPURAM--LADAVARAM AND 88 OTHER HABITATIONS IN TIRUVANNAMALAI DISTRICT
Operation and Maintenance of the Electro Mechanical installations, equipments, components, pipelines valves and appurtenances, water retaining structures including protecton of all schemee components from damages/ theft undertaking legal actions for such untoward incidents, preventive maintenance, disinfection and deliverance of water as per quality standards and supply of earmarked quantity of water to the beneficiaries as per Annexure .........., carrying out the O&M as per standard operating procedures, Acts and rules in force and as directed by TWAD Board Oficers and excluding cost towards attending leak, burst repair and replacement works to electro mechanical installations consumables for disinfection of water, cleaning of all water retaining structure, electricity .
Repair & Renewals and Leak & Bursts :
Attending Leaks in the PVC pipelines of this CWSS for the following items, as per the standard procedure including earthwork excavation, dewatering, removing, relaying, jointing, civil works, cost of materials and all other incidental charges, etc complete within the stipulated time limit as directed by the TWAD Board officers.
PVC 4 KSC Pipes_Minor Leak
63mm OD PVC 4 KSC pipes_Minor Leak
75mm OD PVC 4 KSC pipes_Minor Leak
90mm OD PVC 4 KSC pipes_Minor Leak
110mm OD PVC 4 KSC pipes_Minor Leak
140mm OD PVC 4 KSC pipes_Minor Leak
200mm OD PVC 4 KSC pipes_Minor Leak
250mm OD PVC 4 KSC pipes_Major Leak
PVC 4 KSC Pipes_Major Leak
63mm OD PVC 4 KSC pipes_Major Leak
75mm OD PVC 4 KSC pipes_Major Leak
90mm OD PVC 4 KSC pipes_Major Leak
110mm OD PVC 4 KSC pipes_Major Leak
140mm OD PVC 4 KSC pipes_Major Leak
200mm OD PVC 4 KSC pipes_Major Leak
250mm OD PVC 4 KSC pipes_Major Leak
PVC 6 KSC Pipes_Minor Leak
50mm OD PVC 6 KSC pipes_Minor Leak
75mm OD PVC 6 KSC pipes_Minor Leak
90mm OD PVC 6 KSC pipes_Minor Leak
110mm OD PVC 6 KSC pipes_Minor Leak
140mm OD PVC 6 KSC pipes_Minor Leak
200mm OD PVC 6 KSC pipes_Minor Leak
250mm OD PVC 6 KSC pipes_Major Leak
PVC 6 KSC Pipes_Major Leak
50mm OD PVC 6 KSC pipes_Major Leak
75mm OD PVC 6 KSC pipes_Major Leak
90mm OD PVC 6 KSC pipes_Major Leak
110mm OD PVC 6 KSC pipes_Major Leak
140mm OD PVC 6 KSC pipes_Major Leak
200mm OD PVC 6 KSC pipes_Major Leak
250mm OD PVC 6 KSC pipes_Major Leak
Attending Leaks/Bursts in the HDPE pipelines of this CWSS for the following items, as per the standard procedure including earthwork excavation, dewatering, removing, relaying, jointing by Electro fusion/butt Joint, civil works, cost of materials and all other incidental charges, etc complete within the stipulated time limit as directed by the TWAD Board officers.
HDPE PN 6 Pipes_Minor Leaks
63mm HDPE PN 6 pipes_Minor Leak
75mm HDPE PN 6 pipes_Minor Leak
90mm HDPE PN 6 pipes_Minor Leak
110mm HDPE PN 6 pipes_Minor Leak
140mm HDPE PN 6 pipes_Minor Leak
200mm HDPE PN 6 pipes_Minor Leak
HDPE PN 6 Pipes_Major Leaks
63mm HDPE PN 6 pipes_Major Leak
75mm HDPE PN 6 pipes_Major Leak
90mm HDPE PN 6 pipes_Major Leak
110mm HDPE PN 6 pipes_Major Leak
140mm HDPE PN 6 pipes_Major Leak
200mm HDPE PN 6 pipes_Major Leak
Attending leaks and bursts in GI pipes of various sizes including Supply and delivery of following G I PIPES (MEDIUM) AS PER IS 1239/PART I/2004 and Lowering GI pipes and specials in the trenches and laying to proper grade and alignment, jointing with GI Specials and as directed by the TWAD Officers
50mm GI Pipe leak above GL
65mm GI Pipe leak above GL
80mm GI Pipe leak above GL
100mm GI Pipe leak above GL
125mm GI Pipe leak above GL
150mm GI Pipe leak above GL
Attending Leaks/Bursts in the O-PVC pipelines of this CWSS for the following items, as per the standard procedure including earthwork excavation, dewatering, removing, relaying, jointing, civil works, cost of materials and all incidental charges, etc complete within the stipulated time limit as specified in Clause 2.6.4 of General conditions of Contract
250mm O-PVC Pipe Leak
Attending Leaks/Bursts in the DI pipelines of this CWSS for the following items, as per the standard procedure including earthwork excavation, dewatering, removing, relaying, jointing, civil works, cost of materials and all incidental charges, etc complete within the stipulated time limit as specified in Clause 2.6.4 of General conditions of Contract
DI Pipes_Minor Leak
150mm DI pipes - Minor leak
200mm DI pipes - Minor leak
250mm DI pipes - Minor leak
DI Pipes_Major Leak
150mm DI pipes - Major leak
200mm DI pipes - Major leak
250mm DI pipes - Major leak
Labour for cutting open B.T. Roads (or) Maccadam road for laying water mains - 15 cm thick (SOR VOL II P.195)
For all size Pumping mains
Road Restoration with PCC 1:2:4 using 20 mm HBGS for the Concrete Road cut Portion after the pipes are laid, joined and tested complete and as directed by TWAD Board Officers - 15 cm thick
For all size Pumping mains
Supply and delivery of following sizes of UN PLASTICIZED O-PVC PIPES FOR POTABLE WATER SUPPLY AS PER IS 16647 / 2017 inclusive of transportation charges to stockyard excluding unloading anywhere in Tamilnadu etc, complete and as directed by the TWAD Board officers. (SOR VOL II P.11)
250mm O-PVC PIPE PN 12.5 Class 500
Supply and delivery of following sizes of HDPE PIPES - PE 100 AS PER IS 4984/2016 (Pre-Compounded Resin) inclusive of transportation charges to stockyard excluding unloading anywhere in Tamilnadu etc, complete and as directed by the TWAD Board officers. (SOR VOL II P.14)
200mm HDPE PN 6
140mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
75mm HDPE PN 6
63mm HDPE PN 6
Earth work excavation and depositing on bank with initial lead of 10 m and initial lift of 2m in narrow trenches for laying of pipes for water supply in the following types of soil
Hard stiff clay, stiff black cotton, hard red earth, shales, murrum gravel, stoney earth and earth mixed with small size boulders and hard gravelly soil. (SOR VOL II P.192)
250mm O PVC
200mm HDPE PN 6
140mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
75mm HDPE PN 6
63mm HDPE PN 6
Lowering of OPVC Pipes and specials in the trenches and laying to proper grade and alignment and as directed by the TWAD Officers. (SOR VOL II P.161)
250mm O PVC
Lowering HDPE pipes and specials to trench and laying to proper grade and alignment and as directed by the TWAD Officers. (SOR VOL II P.171)
200mm HDPE PN 6
140mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
75mm HDPE PN 6
63mm HDPE PN 6
Jointing OPVC-S/S pipes and specials with rubber gaskets (tyton joint) including cost of lubricants. (including cost of jointing materials) (SOR VOL II P.164)
250mm O PVC - 6m Length
Jointing HDPE Pipes and Specials by butt fusion welding / electro fusion welding joints using fusion equipment as per ISO 21307-2011 and as per IS 7634 (part-2) : 2012 including cost of hire charges for butt fusion equipment power supply arrangements etc., complete as per directed by TWAD Board Officers. (SOR VOL II P.184)
200mm HDPE PN 6
140mm HDPE PN 6
110mm HDPE PN 6
Refiling with excavated sand or other loose soil complying with standerd specification in layers of 15 cm thick well rammed and consolidated after pipes and specials are laid and tested. (SOR VOL II P.192)
250mm O PVC
200mm HDPE PN 6
140mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
75mm HDPE PN 6
63mm HDPE PN 6
Pumpsets
Carrying out the following repair works occuring during the maintenance period in the Electrical, Mechanical and Elctro-mechanical items to bring back the scheme / components into normal running conditition as per standard specification including all labour charges, cost of materials and all incidental charges within the stipulated time limit etc., complete as specified in Clause 2.8 of General conditions of Contract Part II etc as directed by TWAD Board officers
Attending the Rewinding, Repair and Renewal works in various capacity Open Well Submersible Pumpsets
Removing the Submersible pumpset by using tripod set after disconnecting the power supply cable and delivery pipe line fittings
1HP -OWS
2HP -OWS
3HP -OWS
5HP -OWS
7.5HP -OWS
10HP -OWS
20HP -OWS
40HP -OWS
Transporting the pumpset from Pump House to work shop.
1HP -OWS
2HP -OWS
3HP -OWS
5HP -OWS
7.5HP -OWS
10HP -OWS
20HP -OWS
40HP -OWS
Rewinding the submersible motor using best quality winding wire including cost of wire, Sleeve, other insulating and fibre class materials after deducting the cost of old materials.
1HP -OWS
2HP -OWS
3HP -OWS
5HP -OWS
7.5HP -OWS
10HP -OWS
20HP -OWS
40HP -OWS
Reconditioning the worn-out shaft and fittings, impeller and Gun Metal/ SS Bushes including cost of lath work & labour charges etc.,
1HP -OWS
2HP -OWS
3HP -OWS
5HP -OWS
7.5HP -OWS
10HP -OWS
20HP -OWS
40HP -OWS
Replacement of carbon type thrust bearing and pumpside Gun Metal Bush including cost of labour charges after deducting the cost of old material
1HP -OWS
2HP -OWS
3HP -OWS
5HP -OWS
7.5HP -OWS
10HP -OWS
20HP -OWS
40HP -OWS
Transporting charges for Submersible pumpset from work shop to Pump House after attending repair works.
1HP -OWS
2HP -OWS
3HP -OWS
5HP -OWS
7.5HP -OWS
10HP -OWS
20HP -OWS
40HP -OWS
Re-erection of pumpset in the Sump / Well by using tripod set and required Rubber washer and Bolt & Nuts and connecting the power supply cable and delivery pipeline arrangements testing to trial pumping.
1HP -OWS
2HP -OWS
3HP -OWS
5HP -OWS
7.5HP -OWS
10HP -OWS
20HP -OWS
40HP -OWS
Attending the Rewinding, Repair and Renewal works in Monoblock Pumpset
3HP_Monoblock
Removing the Monblock Centrifugal Pumpset from the Bed assembly by using contractors tools and materials after disconnecting the power supply cable and delivery pipe line fittings with required dummy plate arrangements.
Transporting the pumpset from the Pumping Station to work shop.
Removing the Burnt winding materials from the stator slots and cleaning the stator and rotor assembly by using contractor tools and materials
Reconditioning the worn-out shaft and fittings, impeller and Rope gland bush including cost of lath work & labour charges etc.,
Rewinding the Monblock Centrifugal Motor using best quality winding wire including cost of wire, Sleeve, other insulating and fibre class materials after deducting the cost of old materials.
Replacement of driven end (No: XXXX) and Non driven end (No:XXXX) Bearings suitable for Monblock Centrifugal Motor including the cost of Bearing and labour charges after deducting the cost of old materials.
Replacement of cooling fan at motor end and Terminal Board for suitable for Monblock Centrifugal Pumpset and labour charges after deducting the cost of old materials.
Transporting charges for Monblock Centrifugal Pumpset from work shop to Pump House after attending repair works.
Re-erection of pumpset in the Sump / Well by using required Rubber washer and Bolt & Nuts and connecting the power supply cable and delivery pipe line arrangements, testing and trial pumping.
SUPPLY AND DELIVERY OF SERVICE CONNECTION ACCESSORIES L.T. 1100V PVC ALUMINIUM ARMOURED UNDER GROUND CABLE WITH ISI MARK
25 Sq.mm 3.5 Core
35 Sq.mm 3.5 Core
50 Sq.mm 3.5 Core
70 Sq.mm 3.5 Core
SUPPLY AND DELIVERY OF L.T. CABLES following size sq mm 3 CORE 1.1 KV GRADE ARMOURED ALUMINIUM CONDUCTOR CROSS LINKED POLY ETHYLENE INSULATED PVC SHEATHED CABLES CONFORMING TO IS 7098 (PART I)/1988 WITH ISI MARKING
25 Sq.mm 3 Core
35 Sq.mm 3 Core
SUPPLY AND DELIVERY OF PVC INSULATED AND SHEATHED following sq mm 3 CORE FLAT TYPE COPPER CABLE CONFORMING TO IS 694/1989
SUPPLY AND DELIVERY OF 150mm dia Pressure Gauge and Vaccum guage including all accessories as per specification (For Suction and Delivery to be mounted on wall on Teak Wood Board)
Supply, delivey and fixing of MOULDED CASE CIRCUIT BREAKER (MCCB) WITH THERMO MAGNETIC RELEASE - 4 Pole
Range - 63/100A
Range - 125A
Supply, delivey and fixing of RATE FOR MIXED DI-ELECTRIC CAPACITOR WITH TNEB TEST CERTIFICATE WITH ACCESSORIES INCLUDING BANKING CONFORMIING TO IS 2834.
Supply, delivey and fixing of Electro magnetic contactors of suitable capacity in AC Three Phase rating, conforming to IS/IEC 60947-4-1.
Supply, delivey and fixing of Overload Relays: Directly operated Bimetallic Thermal overload relay which operates in case of overload and also in case of under voltage with manual and auto reset mode.
Supply, delivey and fixing of Preventer – Single Phasing - Electric Motor protection device against single phasing. The device should protect the motor against single phasing, reverse phasing and unbalance supply. The device should be suitable for any auxillary device and have provisions for mounting in panel boards. Operate without need of any auxiliary supply.
Electric Motor protection device against dry running. The device should protect the motor against Dry running. The device should be suitable for any auxillary device and have provisions for mounting in panel boards. Operate without need of any auxiliary supply
Supply, delivey and fixing of FUSE UNITS (ANCHOR /EQUIVALENT)
63 Amps Porcelain fuse unit (500 V)
100 Amps Porcelain fuse unit (500 V)
200 Amps Porcelain fuse unit (500 V)
Supply, delivey and fixing of CHANGE OVER SWITCHES
16 Amps three phase 500 V 4 pole Change over switch
32 Amps three phase 500 V 4 pole Change over switch
63 Amps three phase 500 V 4 pole Change over switch
100 Amps three phase 500 V 4 pole Change over switch
Supply, delivey and fixing of PVC INSULATED SINGLE CORE MULTI STRAND FIRE RETARDANT FLEXIBLE COPPER CABLE WITH ISI MARK CONFORMING TO IS
Supply, delivey and fixing of HRC - FUSES - HIGHER END
HRC - 16 Amps
HRC - 32 Amps
HRC - 63 Amps
HRC - 125 Amps
Supply and delivery of the following Electrical Works :consumable items at the site of work to carryout the general maintenace works
Voltmeter Digital - Three Phase Class 1-AC
Ammeter Digital - Three Phase Class 1-1A
20W 4 Feet LED Fitting with LED (Higher end)
LED OUTDOOR FITTINGS (LIGHT EMITTING DIODE) LOWER END 25W LED Street Light Fitting with LED
Supply and delivery of the following consumable items for Pump Set repairs at the site of work to carryout the general maintenace works
50mm GM Gate valve
65mm GM Gate valve
80mm GM Gate valve
100mm GM Gate valve
R I Sheet
Bolts and Nuts - All sizes
50mm GI Pipe
65mm GI Pipe
80mm GI Pipe
100mm GI pipe
125mm GI pipe
150mm GI pipe
Supply, delivery and fixing of DI D/F Gate sluice/scour valves (soft seated) resilient seated soft sealing Gate Valves(Sluice Valves) with body Bonnet of Ductile cast iron of Grade GGG 40 or equivalent grade, Wedge fully rubber lined with EPDM replaceable spindle nut without gland packing and with 3 O- Ring protection on the shaft and seals of NBR and the valves should be of Vacuum tight and 100% leak proof with face to face dimensions as per BS 5163- 89/ISI 14846-2000/DIN 3202 F4. All the valves should be with electrostatic powder coating both inside and out side with pocket less straight through body passage. All the valves are to be compatible for buried application with pressure rating PN 10/16 and with 5 years warranty.
100mm DI Gate Valve
150mm DI Gate Valve
200mm DI Gate Valve
250mm DI Gate Valve
Manufacture, Supply and Delivery of Tamper proof DI single chamber double orifice triple function (ventilating, admiting & ventilating during operation) air release valve with pressure rating PN 10/16 with body and cover made of Ductile Iron of Grade GGG 40 or GGG 50, conforming to IS 1865 with Food Grade Epoxy Powder coating (EP-P) inside and for outside of colour blue RAL 5005. All internal parts such as float, shell etc., cover bolts, made of Austenitic alloy steel of SS AISI 304/316. The float shall be made of Polytetrafluroethylene/ Austenitic alloy steel of AISI 304/316. Gaskets and seals of EPDM / Neoprene rubber for TWAD Board works anywhere in Tamil Nadu and with 5 years warranty
50mm DI Air Valve
80mm DI Air Valve
Supply, delivey and fixing of C.I. DOUBLE AIR VALVE AS PER ISI 14845/2000 AND WITH 5 YEARS WARRANTY
40mm CI Air Valve
50mm CI Air Valve
80mm CI Air Valve
SUMP CLEANING
Cleaning of all storage points like sumps, elevated reservoirs of various capacities available in this scheme at a frequency of once in two months including scrapping the inner side of compartment completely, scouring / dewatering / desilting using required machineries, materials, labour and all other incidental charges, application of bleaching powder/ solution etc complete.
For 75001 to 100000 lit cap sump
For 125001 to 150000 lit cap sump
For 175001 to 200000 lit cap sump
For 200001 to 300000 lit cap sump
Desilting light or sandysoil or silt from collection well below water level including the charges for special tools & plants and air compressor etc complete
Supply, delivery and application of disinfection dosages as per standard norms / guidelines including cost of all disinfectents (Such as bleaching powder, chlorine cylinder, silver ionization rods, sodium hypochlorite solution, common salt as applicable to this CWSS), labour charges and all incidental charges for disinfection of the water supplied from this CWSS to ensure the portable quality of disinfected water at all delivery points / tail ends, testing of water samples including additional / required / instructed dosage during the period of Flood/ Calamities etc., complete.
Supply delivery of Bleaching Powder as per Relevant IS Specification
Supply delivery of Liquid Chlorine as per Relevant IS Specification
Supply delivery of Alum as per Relevant IS Specification
COMBINED WATER SUPPLY SCHEME TO KILPENNATHUR TOWN PANCHAYAT AND 157 HABITATIONS IN KILPENNATHUR UNION IN TIRUVANNAMALAI DISTRICT
Operation and Maintenance of the Electro Mechanical installations, equipments, components, pipelines valves and appurtenances, water retaining structures including protecton of all schemee components from damages/ theft undertaking legal actions for such untoward incidents, preventive maintenance, disinfection and deliverance of water as per quality standards and supply of earmarked quantity of water to the beneficiaries as per Annexure .........., carrying out the O&M as per standard operating procedures, Acts and rules in force and as directed by TWAD Board Oficers and excluding cost towards attending leak, burst repair and replacement works to electro mechanical installations consumables for disinfection of water, cleaning of all water retaining structure, electricity .
Repair & Renewals and Leak & Bursts :
Attending Leaks in the PVC pipelines of this CWSS for the following items, as per the standard procedure including earthwork excavation, dewatering, removing, relaying, jointing, civil works, cost of materials and all other incidental charges, etc complete within the stipulated time limit as directed by the TWAD Board officers.
PVC 4 KSC Pipes_Minor Leak
63mm OD PVC 4 KSC pipes_Minor Leak
75mm OD PVC 4 KSC pipes_Minor Leak
90mm OD PVC 4 KSC pipes_Minor Leak
110mm OD PVC 4 KSC pipes_Minor Leak
140mm OD PVC 4 KSC pipes_Minor Leak
160mm OD PVC 4 KSC pipes_Minor Leak
200mm OD PVC 4 KSC pipes_Minor Leak
250mm OD PVC 4 KSC pipes_Major Leak
PVC 4 KSC Pipes_Major Leak
63mm OD PVC 4 KSC pipes_Major Leak
75mm OD PVC 4 KSC pipes_Major Leak
90mm OD PVC 4 KSC pipes_Major Leak
110mm OD PVC 4 KSC pipes_Major Leak
140mm OD PVC 4 KSC pipes_Major Leak
160mm OD PVC 4 KSC pipes_Major Leak
200mm OD PVC 4 KSC pipes_Major Leak
250mm OD PVC 4 KSC pipes_Major Leak
PVC 6 KSC Pipes_Minor Leak
50mm OD PVC 6 KSC pipes_Minor Leak
63mm OD PVC 6 KSC pipes_Minor Leak
75mm OD PVC 6 KSC pipes_Minor Leak
90mm OD PVC 6 KSC pipes_Minor Leak
110mm OD PVC 6 KSC pipes_Minor Leak
140mm OD PVC 6 KSC pipes_Minor Leak
200mm OD PVC 6 KSC pipes_Minor Leak
250mm OD PVC 6 KSC pipes_Major Leak
PVC 6 KSC Pipes_Major Leak
50mm OD PVC 6 KSC pipes_Major Leak
63mm OD PVC 6 KSC pipes_Major Leak
75mm OD PVC 6 KSC pipes_Major Leak
90mm OD PVC 6 KSC pipes_Major Leak
110mm OD PVC 6 KSC pipes_Major Leak
140mm OD PVC 6 KSC pipes_Major Leak
200mm OD PVC 6 KSC pipes_Major Leak
250mm OD PVC 6 KSC pipes_Major Leak
Attending Leaks/Bursts in the HDPE pipelines of this CWSS for the following items, as per the standard procedure including earthwork excavation, dewatering, removing, relaying, jointing by Electro fusion/butt Joint, civil works, cost of materials and all other incidental charges, etc complete within the stipulated time limit as directed by the TWAD Board officers.
HDPE PN 6 Pipes_Minor Leaks
63mm HDPE PN 6 pipes_Minor Leak
75mm HDPE PN 6 pipes_Minor Leak
90mm HDPE PN 6 pipes_Minor Leak
110mm HDPE PN 6 pipes_Minor Leak
140mm HDPE PN 6 pipes_Minor Leak
160mm HDPE PN 6 pipes_Minor Leak
200mm HDPE PN 6 pipes_Minor Leak
HDPE PN 6 Pipes_Major Leaks
63mm HDPE PN 6 pipes_Major Leak
75mm HDPE PN 6 pipes_Major Leak
90mm HDPE PN 6 pipes_Major Leak
110mm HDPE PN 6 pipes_Major Leak
140mm HDPE PN 6 pipes_Major Leak
160mm HDPE PN 6 pipes_Major Leak
200mm HDPE PN 6 pipes_Major Leak
Attending leaks and bursts in GI pipes of various sizes including Supply and delivery of following G I PIPES (MEDIUM) AS PER IS 1239/PART I/2004 and Lowering GI pipes and specials in the trenches and laying to proper grade and alignment, jointing with GI Specials and as directed by the TWAD Officers
50mm GI Pipe leak above GL
65mm GI Pipe leak above GL
80mm GI Pipe leak above GL
100mm GI Pipe leak above GL
125mm GI Pipe leak above GL
150mm GI Pipe leak above GL
Attending joint (Collar) Leaks in the AC pipelines of this CWSS for the following items, as per the standard procedure including earthwork excavation, dewatering, removing, relaying, jointing, civil works, cost of materials and all incidental charges, etc complete within the stipulated time limit as specified in Clause 2.6.4 of General conditions of Contract
AC Pipe_Collar Leak
200mm AC_Collar Leak
250mm AC_Collar Leak
AC Pipe_Minor Leak centre crack
200mm AC Pipe_MS Cut Barrel
250mm AC Pipe_MS Cut Barrel
Attending Leaks/Bursts in the O-PVC pipelines of this CWSS for the following items, as per the standard procedure including earthwork excavation, dewatering, removing, relaying, jointing, civil works, cost of materials and all incidental charges, etc complete within the stipulated time limit as specified in Clause 2.6.4 of General conditions of Contract
250mm O-PVC Pipe Leak
Attending Leaks/Bursts in the DI pipelines of this CWSS for the following items, as per the standard procedure including earthwork excavation, dewatering, removing, relaying, jointing, civil works, cost of materials and all incidental charges, etc complete within the stipulated time limit as specified in Clause 2.6.4 of General conditions of Contract
DI Pipes_Minor Leak
200mm DI pipes - Minor leak
250mm DI pipes - Minor leak
DI Pipes_Major Leak
200mm DI pipes - Major leak
250mm DI pipes - Major leak
Labour for cutting open B.T. Roads (or) Maccadam road for laying water mains - 15 cm thick (SOR VOL II P.195)
For all size Pumping mains
Road Restoration with PCC 1:2:4 using 20 mm HBGS for the Concrete Road cut Portion after the pipes are laid, joined and tested complete and as directed by TWAD Board Officers - 15 cm thick
For all size Pumping mains
Supply and delivery of following sizes of UN PLASTICIZED O-PVC PIPES FOR POTABLE WATER SUPPLY AS PER IS 16647 / 2017 inclusive of transportation charges to stockyard excluding unloading anywhere in Tamilnadu etc, complete and as directed by the TWAD Board officers. (SOR VOL II P.11)
250mm O-PVC PIPE PN 12.5 Class 500
Supply and conveying of DI DUCTILE IRON SOCKET/SPIGOT PIPES FOR CLASS K7 AS PER IS 8329/2000 for standard length including cost of pipe,testing charges at factory ,labour charges for loading,unloading and stacking at site etc.(SOR VOL II P.35)
250mm DI S/S K7 pipe
200mm DI S/S K7 pipe
Supply and delivery of following sizes of HDPE PIPES - PE 100 AS PER IS 4984/2016 (Pre-Compounded Resin) inclusive of transportation charges to stockyard excluding unloading anywhere in Tamilnadu etc, complete and as directed by the TWAD Board officers. (SOR VOL II P.14)
225mm HDPE PN 6
200mm HDPE PN 6
160mm HDPE PN 6
140mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
75mm HDPE PN 6
63mm HDPE PN 6
Earth work excavation and depositing on bank with initial lead of 10 m and initial lift of 2m in narrow trenches for laying of pipes for water supply in the following types of soil
Hard stiff clay, stiff black cotton, hard red earth, shales, murrum gravel, stoney earth and earth mixed with small size boulders and hard gravelly soil. (SOR VOL II P.192)
250mm O PVC / DI S/S Pipe
225mm HDPE PN 6
200mm HDPE PN 6 / DI S/S Pipe
160mm HDPE PN 6
140mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
75mm HDPE PN 6
63mm HDPE PN 6
Lowering of OPVC Pipes and specials in the trenches and laying to proper grade and alignment and as directed by the TWAD Officers. (SOR VOL II P.161)
250mm O PVC
Lowering of D.I Pipes and specials in the trenches and laying to proper grade and alignment and as directed by the TWAD Officers.
250mm DI S/S K7 pipe
200mm DI S/S K7 pipe
Lowering HDPE pipes and specials to trench and laying to proper grade and alignment and as directed by the TWAD Officers. (SOR VOL II P.171)
225mm HDPE PN 6
200mm HDPE PN 6
160mm HDPE PN 6
140mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
75mm HDPE PN 6
63mm HDPE PN 6
Jointing OPVC-S/S pipes and specials with rubber gaskets (tyton joint) including cost of lubricants. (including cost of jointing materials) (SOR VOL II P.164)
250mm O PVC - 6m Length
Jointing C.I/ D.I-S/S pipes and specials with rubber gaskets (tyton joint) including cost of lubricants. (including cost of jointing materials)(SOR VOL II P.164)
250mm DI S/S K7 pipe
200mm DI S/S K7 pipe
Jointing HDPE Pipes and Specials by butt fusion welding / electro fusion welding joints using fusion equipment as per ISO 21307-2011 and as per IS 7634 (part-2) : 2012 including cost of hire charges for butt fusion equipment power supply arrangements etc., complete as per directed by TWAD Board Officers. (SOR VOL II P.184)
225mm HDPE PN 6
200mm HDPE PN 6
160mm HDPE PN 6
140mm HDPE PN 6
110mm HDPE PN 6
Refiling with excavated sand or other loose soil complying with standerd specification in layers of 15 cm thick well rammed and consolidated after pipes and specials are laid and tested. (SOR VOL II P.192)
250mm O PVC / DI S/S Pipe
225mm HDPE PN 6
200mm HDPE PN 6 / DI S/S Pipe
160mm HDPE PN 6
140mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
75mm HDPE PN 6
63mm HDPE PN 6
Pumpsets
Carrying out the following repair works occuring during the maintenance period in the Electrical, Mechanical and Elctro-mechanical items to bring back the scheme / components into normal running conditition as per standard specification including all labour charges, cost of materials and all incidental charges within the stipulated time limit etc., complete as specified in Clause 2.8 of General conditions of Contract Part II etc as directed by TWAD Board officers
Attending the Rewinding, Repair and Renewal works in various capacity Open Well Submersible Pumpsets
Removing the Submersible pumpset by using tripod set after disconnecting the power supply cable and delivery pipe line fittings
1HP -OWS
2HP -OWS
3HP -OWS
5HP -OWS
7.5HP -OWS
10HP -OWS
12.50HP -OWS
20HP -OWS
40HP -OWS
50HP -OWS
Transporting the pumpset from Pump House to work shop.
1HP -OWS
2HP -OWS
3HP -OWS
5HP -OWS
7.5HP -OWS
10HP -OWS
12.50HP -OWS
20HP -OWS
40HP -OWS
50HP -OWS
Rewinding the submersible motor using best quality winding wire including cost of wire, Sleeve, other insulating and fibre class materials after deducting the cost of old materials.
1HP -OWS
2HP -OWS
3HP -OWS
5HP -OWS
7.5HP -OWS
10HP -OWS
12.50HP -OWS
20HP -OWS
40HP -OWS
50HP -OWS
Reconditioning the worn-out shaft and fittings, impeller and Gun Metal/ SS Bushes including cost of lath work & labour charges etc.,
1HP -OWS
2HP -OWS
3HP -OWS
5HP -OWS
7.5HP -OWS
10HP -OWS
12.50HP -OWS
20HP -OWS
40HP -OWS
50HP -OWS
Replacement of carbon type thrust bearing and pumpside Gun Metal Bush including cost of labour charges after deducting the cost of old material
1HP -OWS
2HP -OWS
3HP -OWS
5HP -OWS
7.5HP -OWS
10HP -OWS
12.50HP -OWS
20HP -OWS
40HP -OWS
50HP -OWS
Transporting charges for Submersible pumpset from work shop to Pump House after attending repair works.
1HP -OWS
2HP -OWS
3HP -OWS
5HP -OWS
7.5HP -OWS
10HP -OWS
12.50HP -OWS
20HP -OWS
40HP -OWS
50HP -OWS
Re-erection of pumpset in the Sump / Well by using tripod set and required Rubber washer and Bolt & Nuts and connecting the power supply cable and delivery pipeline arrangements testing to trial pumping.
1HP -OWS
2HP -OWS
3HP -OWS
5HP -OWS
7.5HP -OWS
10HP -OWS
12.50HP -OWS
20HP -OWS
40HP -OWS
50HP -OWS
SUPPLY AND DELIVERY OF SERVICE CONNECTION ACCESSORIES L.T. 1100V PVC ALUMINIUM ARMOURED UNDER GROUND CABLE WITH ISI MARK
25 Sq.mm 3.5 Core
35 Sq.mm 3.5 Core
50 Sq.mm 3.5 Core
70 Sq.mm 3.5 Core
95 Sq.mm 3.5 Core
SUPPLY AND DELIVERY OF L.T. CABLES following size sq mm 3 CORE 1.1 KV GRADE ARMOURED ALUMINIUM CONDUCTOR CROSS LINKED POLY ETHYLENE INSULATED PVC SHEATHED CABLES CONFORMING TO IS 7098 (PART I)/1988 WITH ISI MARKING
25 Sq.mm 3 Core
35 Sq.mm 3 Core
50 Sq.mm 3 Core
70 Sq.mm 3Core
95 Sq.mm 3 Core
SUPPLY AND DELIVERY OF PVC INSULATED AND SHEATHED following sq mm 3 CORE FLAT TYPE COPPER CABLE CONFORMING TO IS 694/1989
SUPPLY AND DELIVERY OF 150mm dia Pressure Gauge and Vaccum guage including all accessories as per specification (For Suction and Delivery to be mounted on wall on Teak Wood Board)
Supply, delivey and fixing of MOULDED CASE CIRCUIT BREAKER (MCCB) WITH THERMO MAGNETIC RELEASE - 4 Pole
Range - 63/100A
Range - 125A
Range - 160A
Range - 250A
Supply, delivey and fixing of RATE FOR MIXED DI-ELECTRIC CAPACITOR WITH TNEB TEST CERTIFICATE WITH ACCESSORIES INCLUDING BANKING CONFORMIING TO IS 2834.
Supply, delivey and fixing of Electro magnetic contactors of suitable capacity in AC Three Phase rating, conforming to IS/IEC 60947-4-1.
Supply, delivey and fixing of Overload Relays: Directly operated Bimetallic Thermal overload relay which operates in case of overload and also in case of under voltage with manual and auto reset mode.
Supply, delivey and fixing of Preventer – Single Phasing - Electric Motor protection device against single phasing. The device should protect the motor against single phasing, reverse phasing and unbalance supply. The device should be suitable for any auxillary device and have provisions for mounting in panel boards. Operate without need of any auxiliary supply.
Electric Motor protection device against dry running. The device should protect the motor against Dry running. The device should be suitable for any auxillary device and have provisions for mounting in panel boards. Operate without need of any auxiliary supply
Supply, delivey and fixing of FUSE UNITS (ANCHOR /EQUIVALENT)
63 Amps Porcelain fuse unit (500 V)
100 Amps Porcelain fuse unit (500 V)
200 Amps Porcelain fuse unit (500 V)
Supply, delivey and fixing of CHANGE OVER SWITCHES
16 Amps three phase 500 V 4 pole Change over switch
32 Amps three phase 500 V 4 pole Change over switch
63 Amps three phase 500 V 4 pole Change over switch
100 Amps three phase 500 V 4 pole Change over switch
125 Amps three phase 500 V 4 pole Change over switch
Supply, delivey and fixing of PVC INSULATED SINGLE CORE MULTI STRAND FIRE RETARDANT FLEXIBLE COPPER CABLE WITH ISI MARK CONFORMING TO IS
Supply, delivey and fixing of HRC - FUSES - HIGHER END
HRC - 16 Amps
HRC - 32 Amps
HRC - 63 Amps
HRC - 125 Amps
HRC - 160 Amps
HRC - 200 Amps
HRC - 250 Amps
Supply and delivery of the following Electrical Works :consumable items at the site of work to carryout the general maintenace works
Voltmeter Digital - Three Phase Class 1-AC
Ammeter Digital - Three Phase Class 1-1A
20W 4 Feet LED Fitting with LED (Higher end)
LED OUTDOOR FITTINGS (LIGHT EMITTING DIODE) LOWER END 25W LED Street Light Fitting with LED
Supply and delivery of the following consumable items for Pump Set repairs at the site of work to carryout the general maintenace works
50mm GM Gate valve
65mm GM Gate valve
80mm GM Gate valve
100mm GM Gate valve
R I Sheet
Bolts and Nuts - All sizes
50mm GI Pipe
65mm GI Pipe
80mm GI Pipe
100mm GI pipe
125mm GI pipe
150mm GI pipe
Supply, delivery and fixing of DI D/F Gate sluice/scour valves (soft seated) resilient seated soft sealing Gate Valves(Sluice Valves) with body Bonnet of Ductile cast iron of Grade GGG 40 or equivalent grade, Wedge fully rubber lined with EPDM replaceable spindle nut without gland packing and with 3 O- Ring protection on the shaft and seals of NBR and the valves should be of Vacuum tight and 100% leak proof with face to face dimensions as per BS 5163- 89/ISI 14846-2000/DIN 3202 F4. All the valves should be with electrostatic powder coating both inside and out side with pocket less straight through body passage. All the valves are to be compatible for buried application with pressure rating PN 10/16 and with 5 years warranty.
100mm DI Gate Valve
150mm DI Gate Valve
Manufacture, Supply and Delivery of Tamper proof DI single chamber double orifice triple function (ventilating, admiting & ventilating during operation) air release valve with pressure rating PN 10/16 with body and cover made of Ductile Iron of Grade GGG 40 or GGG 50, conforming to IS 1865 with Food Grade Epoxy Powder coating (EP-P) inside and for outside of colour blue RAL 5005. All internal parts such as float, shell etc., cover bolts, made of Austenitic alloy steel of SS AISI 304/316. The float shall be made of Polytetrafluroethylene/ Austenitic alloy steel of AISI 304/316. Gaskets and seals of EPDM / Neoprene rubber for TWAD Board works anywhere in Tamil Nadu and with 5 years warranty
50mm DI Air Valve
80mm DI Air Valve
Supply, delivey and fixing of C.I. DOUBLE AIR VALVE AS PER ISI 14845/2000 AND WITH 5 YEARS WARRANTY
40mm CI Air Valve
50mm CI Air Valve
80mm CI Air Valve
SUMP CLEANING
Cleaning of all storage points like sumps, elevated reservoirs of various capacities available in this scheme at a frequency of once in two months including scrapping the inner side of compartment completely, scouring / dewatering / desilting using required machineries, materials, labour and all other incidental charges, application of bleaching powder/ solution etc complete.
For 15001 to 30000 lit cap sump
For 45001 to 60000 lit cap sump
For 100001 to 125000 lit cap sump
For 125001 to 150000 lit cap sump
For 200001 to 300000 lit cap sump
Desilting light or sandysoil or silt from collection well below water level including the charges for special tools & plants and air compressor etc complete
Supply, delivery and application of disinfection dosages as per standard norms / guidelines including cost of all disinfectents (Such as bleaching powder, chlorine cylinder, silver ionization rods, sodium hypochlorite solution, common salt as applicable to this CWSS), labour charges and all incidental charges for disinfection of the water supplied from this CWSS to ensure the portable quality of disinfected water at all delivery points / tail ends, testing of water samples including additional / required / instructed dosage during the period of Flood/ Calamities etc., complete.
Supply delivery of Bleaching Powder as per Relevant IS Specification
CWSS TO CHENGAM TP, PUDUPALAYAM TP AND 40 WAYSIDE HABIYTATIONS IN CHENGAM, PUDUPALAYAM UNIONS IN TIRUVANNAMALAI DISTRICT
Operation and Maintenance of the Electro Mechanical installations, equipments, components, pipelines valves and appurtenances, water retaining structures including protecton of all schemee components from damages/ theft undertaking legal actions for such untoward incidents, preventive maintenance, disinfection and deliverance of water as per quality standards and supply of earmarked quantity of water to the beneficiaries as per Annexure .........., carrying out the O&M as per standard operating procedures, Acts and rules in force and as directed by TWAD Board Oficers and excluding cost towards attending leak, burst repair and replacement works to electro mechanical installations consumables for disinfection of water, cleaning of all water retaining structure, electricity .
Repair & Renewals and Leak & Bursts :
Attending Leaks in the PVC pipelines of this CWSS for the following items, as per the standard procedure including earthwork excavation, dewatering, removing, relaying, jointing, civil works, cost of materials and all other incidental charges, etc complete within the stipulated time limit as directed by the TWAD Board officers.
PVC 4 KSC Pipes_Minor Leak
63mm OD PVC 4 KSC pipes_Minor Leak
75mm OD PVC 4 KSC pipes_Minor Leak
90mm OD PVC 4 KSC pipes_Minor Leak
110mm OD PVC 4 KSC pipes_Minor Leak
140mm OD PVC 4 KSC pipes_Minor Leak
200mm OD PVC 4 KSC pipes_Minor Leak
250mm OD PVC 4 KSC pipes_Major Leak
PVC 4 KSC Pipes_Major Leak
63mm OD PVC 4 KSC pipes_Major Leak
75mm OD PVC 4 KSC pipes_Major Leak
90mm OD PVC 4 KSC pipes_Major Leak
110mm OD PVC 4 KSC pipes_Major Leak
140mm OD PVC 4 KSC pipes_Major Leak
200mm OD PVC 4 KSC pipes_Major Leak
250mm OD PVC 4 KSC pipes_Major Leak
PVC 6 KSC Pipes_Minor Leak
50mm OD PVC 6 KSC pipes_Minor Leak
63mm OD PVC 6 KSC pipes_Minor Leak
75mm OD PVC 6 KSC pipes_Minor Leak
90mm OD PVC 6 KSC pipes_Minor Leak
110mm OD PVC 6 KSC pipes_Minor Leak
140mm OD PVC 6 KSC pipes_Minor Leak
200mm OD PVC 6 KSC pipes_Minor Leak
250mm OD PVC 6 KSC pipes_Major Leak
PVC 6 KSC Pipes_Major Leak
50mm OD PVC 6 KSC pipes_Major Leak
63mm OD PVC 6 KSC pipes_Major Leak
75mm OD PVC 6 KSC pipes_Major Leak
90mm OD PVC 6 KSC pipes_Major Leak
110mm OD PVC 6 KSC pipes_Major Leak
140mm OD PVC 6 KSC pipes_Major Leak
200mm OD PVC 6 KSC pipes_Major Leak
250mm OD PVC 6 KSC pipes_Major Leak
Attending Leaks/Bursts in the HDPE pipelines of this CWSS for the following items, as per the standard procedure including earthwork excavation, dewatering, removing, relaying, jointing by Electro fusion/butt Joint, civil works, cost of materials and all other incidental charges, etc complete within the stipulated time limit as directed by the TWAD Board officers.
HDPE PN 6 Pipes_Minor Leaks
63mm HDPE PN 6 pipes_Minor Leak
75mm HDPE PN 6 pipes_Minor Leak
90mm HDPE PN 6 pipes_Minor Leak
110mm HDPE PN 6 pipes_Minor Leak
HDPE PN 6 Pipes_Major Leaks
63mm HDPE PN 6 pipes_Major Leak
75mm HDPE PN 6 pipes_Major Leak
90mm HDPE PN 6 pipes_Major Leak
110mm HDPE PN 6 pipes_Major Leak
Attending leaks and bursts in GI pipes of various sizes including Supply and delivery of following G I PIPES (MEDIUM) AS PER IS 1239/PART I/2004 and Lowering GI pipes and specials in the trenches and laying to proper grade and alignment, jointing with GI Specials and as directed by the TWAD Officers
50mm GI Pipe leak above GL
65mm GI Pipe leak above GL
80mm GI Pipe leak above GL
100mm GI Pipe leak above GL
125mm GI Pipe leak above GL
150mm GI Pipe leak above GL
Attending joint (Collar) Leaks in the AC pipelines of this CWSS for the following items, as per the standard procedure including earthwork excavation, dewatering, removing, relaying, jointing, civil works, cost of materials and all incidental charges, etc complete within the stipulated time limit as specified in Clause 2.6.4 of General conditions of Contract
AC Pipe_Collar Leak
300mm AC_Collar Leak
AC Pipe_Minor Leak centre crack
300mm AC Pipe_MS Cut Barrel
Attending Leaks/Bursts in the DI pipelines of this CWSS for the following items, as per the standard procedure including earthwork excavation, dewatering, removing, relaying, jointing, civil works, cost of materials and all incidental charges, etc complete within the stipulated time limit as specified in Clause 2.6.4 of General conditions of Contract
DI Pipes_Minor Leak
200mm DI pipes - Minor leak
DI Pipes_Major Leak
200mm DI pipes - Major leak
Labour for cutting open B.T. Roads (or) Maccadam road for laying water mains - 15 cm thick (SOR VOL II P.195)
For all size Pumping mains
Road Restoration with PCC 1:2:4 using 20 mm HBGS for the Concrete Road cut Portion after the pipes are laid, joined and tested complete and as directed by TWAD Board Officers - 15 cm thick
For all size Pumping mains
Supply and delivery of following sizes of UN PLASTICIZED O-PVC PIPES FOR POTABLE WATER SUPPLY AS PER IS 16647 / 2017 inclusive of transportation charges to stockyard excluding unloading anywhere in Tamilnadu etc, complete and as directed by the TWAD Board officers. (SOR VOL II P.11)
250mm O-PVC PIPE PN 12.5 Class 500
315mm O-PVC PIPE PN 12.5 Class 500
Supply and delivery of following sizes of HDPE PIPES - PE 100 AS PER IS 4984/2016 (Pre-Compounded Resin) inclusive of transportation charges to stockyard excluding unloading anywhere in Tamilnadu etc, complete and as directed by the TWAD Board officers. (SOR VOL II P.14)
200mm HDPE PN 6
140mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
75mm HDPE PN 6
63mm HDPE PN 6
Earth work excavation and depositing on bank with initial lead of 10 m and initial lift of 2m in narrow trenches for laying of pipes for water supply in the following types of soil
Hard stiff clay, stiff black cotton, hard red earth, shales, murrum gravel, stoney earth and earth mixed with small size boulders and hard gravelly soil. (SOR VOL II P.192)
250mm O PVC
315mm O PVC
200mm HDPE PN 6
140mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
75mm HDPE PN 6
63mm HDPE PN 6
Lowering of OPVC Pipes and specials in the trenches and laying to proper grade and alignment and as directed by the TWAD Officers. (SOR VOL II P.161)
250mm O PVC
315mm O PVC
Lowering HDPE pipes and specials to trench and laying to proper grade and alignment and as directed by the TWAD Officers. (SOR VOL II P.171)
200mm HDPE PN 6
140mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
75mm HDPE PN 6
63mm HDPE PN 6
Jointing OPVC-S/S pipes and specials with rubber gaskets (tyton joint) including cost of lubricants. (including cost of jointing materials) (SOR VOL II P.164)
250mm O PVC - 6m Length
315mm O PVC - 6m Length
Jointing HDPE Pipes and Specials by butt fusion welding / electro fusion welding joints using fusion equipment as per ISO 21307-2011 and as per IS 7634 (part-2) : 2012 including cost of hire charges for butt fusion equipment power supply arrangements etc., complete as per directed by TWAD Board Officers. (SOR VOL II P.184)
200mm HDPE PN 6
140mm HDPE PN 6
110mm HDPE PN 6
Refiling with excavated sand or other loose soil complying with standerd specification in layers of 15 cm thick well rammed and consolidated after pipes and specials are laid and tested. (SOR VOL II P.192)
250mm O PVC
315mm O PVC
200mm HDPE PN 6
140mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
75mm HDPE PN 6
63mm HDPE PN 6
Pumpsets
Carrying out the following repair works occuring during the maintenance period in the Electrical, Mechanical and Elctro-mechanical items to bring back the scheme / components into normal running conditition as per standard specification including all labour charges, cost of materials and all incidental charges within the stipulated time limit etc., complete as specified in Clause 2.8 of General conditions of Contract Part II etc as directed by TWAD Board officers
Attending the Rewinding, Repair and Renewal works in various capacity Open Well Submersible Pumpsets
Removing the Submersible pumpset by using tripod set after disconnecting the power supply cable and delivery pipe line fittings
1HP -OWS
2HP -OWS
3HP -OWS
5HP -OWS
12.50HP -OWS
Transporting the pumpset from Pump House to work shop.
1HP -OWS
2HP -OWS
3HP -OWS
5HP -OWS
12.50HP -OWS
Rewinding the submersible motor using best quality winding wire including cost of wire, Sleeve, other insulating and fibre class materials after deducting the cost of old materials.
1HP -OWS
2HP -OWS
3HP -OWS
5HP -OWS
12.50HP -OWS
Reconditioning the worn-out shaft and fittings, impeller and Gun Metal/ SS Bushes including cost of lath work & labour charges etc.,
1HP -OWS
2HP -OWS
3HP -OWS
5HP -OWS
12.50HP -OWS
Replacement of carbon type thrust bearing and pumpside Gun Metal Bush including cost of labour charges after deducting the cost of old material
1HP -OWS
2HP -OWS
3HP -OWS
5HP -OWS
12.50HP -OWS
Transporting charges for Submersible pumpset from work shop to Pump House after attending repair works.
1HP -OWS
2HP -OWS
3HP -OWS
5HP -OWS
12.50HP -OWS
Re-erection of pumpset in the Sump / Well by using tripod set and required Rubber washer and Bolt & Nuts and connecting the power supply cable and delivery pipeline arrangements testing to trial pumping.
1HP -OWS
2HP -OWS
3HP -OWS
5HP -OWS
12.50HP -OWS
Attending the Rewinding, Repair and Renewal works in Monoblock Pumpset
3HP_Monoblock
Removing the Monblock Centrifugal Pumpset from the Bed assembly by using contractors tools and materials after disconnecting the power supply cable and delivery pipe line fittings with required dummy plate arrangements.
Transporting the pumpset from the Pumping Station to work shop.
Removing the Burnt winding materials from the stator slots and cleaning the stator and rotor assembly by using contractor tools and materials
Reconditioning the worn-out shaft and fittings, impeller and Rope gland bush including cost of lath work & labour charges etc.,
Rewinding the Monblock Centrifugal Motor using best quality winding wire including cost of wire, Sleeve, other insulating and fibre class materials after deducting the cost of old materials.
Replacement of driven end (No: XXXX) and Non driven end (No:XXXX) Bearings suitable for Monblock Centrifugal Motor including the cost of Bearing and labour charges after deducting the cost of old materials.
Replacement of cooling fan at motor end and Terminal Board for suitable for Monblock Centrifugal Pumpset and labour charges after deducting the cost of old materials.
Transporting charges for Monblock Centrifugal Pumpset from work shop to Pump House after attending repair works.
Re-erection of pumpset in the Sump / Well by using required Rubber washer and Bolt & Nuts and connecting the power supply cable and delivery pipe line arrangements, testing and trial pumping.
Attending the Rewinding and replacement of bearings of Induction Motor for Horizontal Split Casing Pumpsets
15HP -HSC_Motor
Charges for removing the motor from bed after disconnection of power supply cable, Earthing line and Coupling arrangements by using contractor tools and materials.
Transportation charges for conveying the motor from the Booster Station to Our work shop including loading and unloading charges.
Labour Charges for removing the two end side cover with fan arrangements and the damaged driven end and non driven end bearings.
Charges for removing the burnt wires from the rotor assembly and cleaning and checking the slots of rotor and labour charges for rewinding of Centrifugal Squirrel Cage Induction Motor after deducting the cost of old materials and including suppy and delivery of Class ‘F’ Insulation Super enameled Copper wire, required for rewinding and Fiber Glass wire, Fiber Glass Sleeves, Class ‘F’ insulation paper, Copper Socket and FG thread required for rewinding of Squirrel Cage Induction Motor
Labour Charges for reconditioning the worn out shaft for driven end and non driven end bearing seating, knurling, bend checking, and etc.,
Supply and delivery of Driven End and Non Driven End bearings suitable for the required Induction Motor
Labour Charges fixing the DE and NDE bearings correctly and neatly with required lubrications by contractors tools & Materials
Transportation charges for conveying the motor from work shop to Pumping Station
Charges for reassembling the motor with bed and pump coupling, alignment checking connecting power supply cable, including required bolt and Nuts and testing trial running etc.,
Attending the Repair and Reconditioning works of various capacities of Horizontal Split Casing Pumpsets
15HP -HSC_Pump
Charges for removing the motor from bed assembly after dismantling of Coupling arrangements and removing the pump assembly and including the provision of dummy flange arrangements by using contractor tools and materials.
Transportation charges for conveying the Pump assembly from the Pumping Station to work shop including loading and unloading charges.
Labour Charges for removing the impeller by using hydralic system, DE and NDE Bearings
Labour Charges for reconditioning the worn out shaft including welding the shaft to suit the impeller and suit the driven end and non driven end bearing seating, knurling, bend checking and etc.,
Supply, delivery and fixing of Shaft sleeves in Gun metal including machining charges and making key ways after deducting the scrap materials
Balancing of Rotor with impeller both dyanamically and Hydralically by using required dyanamic balancing machine
Supply, delivery and fixing of Gunmetal seal rings for impeller neck including machining charges after deducting the scrap materials
Supply and delivery of Driven End and Non Driven End bearings
Labour Charges fixing the DE and NDE bearings correctly and neatly with required lubrications by contractors tools & Materials
Transportation charges for conveying the Pump assembly from work shop to Pumping Station.
Charges for reassembling the Pump with Motor by using pulley and alignment checking, including required bolt and Nuts and testing trial running etc.,
Attending the Rewinding and replacement of bearings of Induction Motor for Vertical Turbine Pumpset
50HP -VT_Motor
Charges for removing the motor from bed after disconnection of power supply cable, Earthing line and Coupling arrangements by using contractor tools and materials.
Transportation charges for conveying the motor from the Station to Our work shop including loading and unloading charges.
Labour Charges for removing the two end side cover with fan arrangements and Dismantling the damaged NDE Side ball Bearing from the motor after removing the Rachet assembly load bearing safely and Fixing the New ball Bearing in the appropriate place with required lubricants without any damage to the motor shaft and winding after deducting the old damaged materials.
Charges for removing the burnt wires from the rotor assembly and cleaning and checking the slots of rotor and labour charges for rewinding of Centrifugal Squirrel Cage Induction Motor after deducting the cost of old materials and including suppy and delivery of Class ‘F’ Insulation Super enameled Copper wire, required for rewinding and Fiber Glass wire, Fiber Glass Sleeves, Class ‘F’ insulation paper, Copper Socket and FG thread required for rewinding of Squirrel Cage Induction Motor
Labour Charges for reconditioning the worn out shaft for driven end and non driven end bearing seating, knurling, bend checking, and etc.,
Supply and delivery of Non Driven End Deep Grove ball Bearing SKF Make suitable for the Squirrel Gage Induction Motor.
Labour Charges fixing the NDE bearings correctly and neatly with required lubrications by contractors tools & Materials
Transportation charges for conveying the motor from work shop to pumping Station
Charges for reassembling the motor with bed and pump coupling, alignment checking connecting power supply cable, including required bolt and Nuts and testing trial running etc.,
Attending the Repair and Reconditioning works of various capacities of Vertical Turbine Pumps
50HP -VT_Pump
Charges for Removing the Hollow shaft Squirrel cage Induction Motor after disconnecting the Power supply Cable, Discharge Head, Head Shaft and Stuffing Box by using contractor tools at Collector Well / Collection Sump
Charges for removing the all Column pipes of VT Pumpset each 1.5 m / 2.00 m to length and bowl assemblly for attending Pump repair works
Transportation charges for conveying the VT Pump bowl assembly from Collector Well Pump room to Work Shop including usage of trolley along the Foot bridge and Van
Reconditioning of Stuffing Box for providing bronze bush suitable for fixing thr Rope Gland and Head Shaft to avoid frequent damaging of rope and to avoid spreading of more leakage water from the Rope Gland including lath works etc., complete.
Charges for Lathe work of reconditioning of Pump SS Shaft with balancing, SS Bushes and sleeves, charges for Spider bore nd outer dimension phase out lath works, reconditioning of impeller and impeller ring & charges fixing the bearing and bronze bushes in the bowl assembly including correct setting of impeller allignment etc complete
Transportation charges for conveying the VT Pump bowl assembly from our work shop to Collector Well Pump room including usage of trolley along the Foot bridge and Van
Charges for reassembling the all Column pipes of Turbine Pump set and bowl assemblly after attending Pump repair works in the proper allignment after attending the cleaning and painting work in the coloumn pipe and body of the bowl assembly
Re errection of reconditioned stuffing box, new Head shaft, Discharge head and Motor, fixing the Rachet load bearing assembly including filling of required 90 grade oil and Connecting the 440V AC incoming Cable to the Motor Terminal and fixing new rope in the rope gland and Checking Motor Pumpset Alignment and Rotation and testing with load etc.,Complete
SUPPLY AND DELIVERY OF SERVICE CONNECTION ACCESSORIES L.T. 1100V PVC ALUMINIUM ARMOURED UNDER GROUND CABLE WITH ISI MARK
25 Sq.mm 3.5 Core
35 Sq.mm 3.5 Core
50 Sq.mm 3.5 Core
120 Sq.mm 3.5 Core
SUPPLY AND DELIVERY OF L.T. CABLES following size sq mm 3 CORE 1.1 KV GRADE ARMOURED ALUMINIUM CONDUCTOR CROSS LINKED POLY ETHYLENE INSULATED PVC SHEATHED CABLES CONFORMING TO IS 7098 (PART I)/1988 WITH ISI MARKING
25 Sq.mm 3 Core
35 Sq.mm 3 Core
50 Sq.mm 3 Core
SUPPLY AND DELIVERY OF PVC INSULATED AND SHEATHED following sq mm 3 CORE FLAT TYPE COPPER CABLE CONFORMING TO IS 694/1989
SUPPLY AND DELIVERY OF 150mm dia Pressure Gauge and Vaccum guage including all accessories as per specification (For Suction and Delivery to be mounted on wall on Teak Wood Board)
Supply, delivey and fixing of MOULDED CASE CIRCUIT BREAKER (MCCB) WITH THERMO MAGNETIC RELEASE - 4 Pole
Range - 63/100A
Range - 125A
Range - 160A
Range - 250A
Supply, delivey and fixing of RATE FOR MIXED DI-ELECTRIC CAPACITOR WITH TNEB TEST CERTIFICATE WITH ACCESSORIES INCLUDING BANKING CONFORMIING TO IS 2834.
Supply, delivey and fixing of Electro magnetic contactors of suitable capacity in AC Three Phase rating, conforming to IS/IEC 60947-4-1.
Supply, delivey and fixing of Overload Relays: Directly operated Bimetallic Thermal overload relay which operates in case of overload and also in case of under voltage with manual and auto reset mode.
Supply, delivey and fixing of Preventer – Single Phasing - Electric Motor protection device against single phasing. The device should protect the motor against single phasing, reverse phasing and unbalance supply. The device should be suitable for any auxillary device and have provisions for mounting in panel boards. Operate without need of any auxiliary supply.
Electric Motor protection device against dry running. The device should protect the motor against Dry running. The device should be suitable for any auxillary device and have provisions for mounting in panel boards. Operate without need of any auxiliary supply
Supply, delivey and fixing of FUSE UNITS (ANCHOR /EQUIVALENT)
63 Amps Porcelain fuse unit (500 V)
100 Amps Porcelain fuse unit (500 V)
200 Amps Porcelain fuse unit (500 V)
Supply, delivey and fixing of CHANGE OVER SWITCHES
16 Amps three phase 500 V 4 pole Change over switch
32 Amps three phase 500 V 4 pole Change over switch
63 Amps three phase 500 V 4 pole Change over switch
100 Amps three phase 500 V 4 pole Change over switch
125 Amps three phase 500 V 4 pole Change over switch
Supply, delivey and fixing of PVC INSULATED SINGLE CORE MULTI STRAND FIRE RETARDANT FLEXIBLE COPPER CABLE WITH ISI MARK CONFORMING TO IS
Supply, delivey and fixing of HRC - FUSES - HIGHER END
HRC - 16 Amps
HRC - 32 Amps
HRC - 63 Amps
HRC - 125 Amps
HRC - 160 Amps
HRC - 200 Amps
Supply and delivery of the following Electrical Works :consumable items at the site of work to carryout the general maintenace works
Voltmeter Digital - Three Phase Class 1-AC
Ammeter Digital - Three Phase Class 1-1A
20W 4 Feet LED Fitting with LED (Higher end)
LED OUTDOOR FITTINGS (LIGHT EMITTING DIODE) LOWER END 25W LED Street Light Fitting with LED
Supply and delivery of the following consumable items for Pump Set repairs at the site of work to carryout the general maintenace works
50mm GM Gate valve
65mm GM Gate valve
80mm GM Gate valve
100mm GM Gate valve
R I Sheet
Bolts and Nuts - All sizes
50mm GI Pipe
65mm GI Pipe
80mm GI Pipe
100mm GI pipe
125mm GI pipe
150mm GI pipe
Supply, delivery and fixing of DI D/F Gate sluice/scour valves (soft seated) resilient seated soft sealing Gate Valves(Sluice Valves) with body Bonnet of Ductile cast iron of Grade GGG 40 or equivalent grade, Wedge fully rubber lined with EPDM replaceable spindle nut without gland packing and with 3 O- Ring protection on the shaft and seals of NBR and the valves should be of Vacuum tight and 100% leak proof with face to face dimensions as per BS 5163- 89/ISI 14846-2000/DIN 3202 F4. All the valves should be with electrostatic powder coating both inside and out side with pocket less straight through body passage. All the valves are to be compatible for buried application with pressure rating PN 10/16 and with 5 years warranty.
100mm DI Gate Valve
150mm DI Gate Valve
200mm DI Gate Valve
250mm DI Gate Valve
Manufacture, Supply and Delivery of Tamper proof DI single chamber double orifice triple function (ventilating, admiting & ventilating during operation) air release valve with pressure rating PN 10/16 with body and cover made of Ductile Iron of Grade GGG 40 or GGG 50, conforming to IS 1865 with Food Grade Epoxy Powder coating (EP-P) inside and for outside of colour blue RAL 5005. All internal parts such as float, shell etc., cover bolts, made of Austenitic alloy steel of SS AISI 304/316. The float shall be made of Polytetrafluroethylene/ Austenitic alloy steel of AISI 304/316. Gaskets and seals of EPDM / Neoprene rubber for TWAD Board works anywhere in Tamil Nadu and with 5 years warranty
50mm DI Air Valve
80mm DI Air Valve
Supply, delivey and fixing of C.I. DOUBLE AIR VALVE AS PER ISI 14845/2000 AND WITH 5 YEARS WARRANTY
40mm CI Air Valve
50mm CI Air Valve
80mm CI Air Valve
SUMP CLEANING
Cleaning of all storage points like sumps, elevated reservoirs of various capacities available in this scheme at a frequency of once in two months including scrapping the inner side of compartment completely, scouring / dewatering / desilting using required machineries, materials, labour and all other incidental charges, application of bleaching powder/ solution etc complete.
For 30001 to 45000 lit cap sump
For 45001 to 60000 lit cap sump
For 75001 to 100000 lit cap sump
For 175001 to 200000 lit cap sump
Desilting light or sandysoil or silt from collection well below water level including the charges for special tools & plants and air compressor etc complete
Supply, delivery and application of disinfection dosages as per standard norms / guidelines including cost of all disinfectents (Such as bleaching powder, chlorine cylinder, silver ionization rods, sodium hypochlorite solution, common salt as applicable to this CWSS), labour charges and all incidental charges for disinfection of the water supplied from this CWSS to ensure the portable quality of disinfected water at all delivery points / tail ends, testing of water samples including additional / required / instructed dosage during the period of Flood/ Calamities etc., complete.
Supply delivery of Bleaching Powder as per Relevant IS Specification
Supply delivery of Liquid Chlorine as per Relevant IS Specification
Supply delivery of Alum as per Relevant IS Specification
CWSS TO THANIPADI,THANDRAMPATTU AND 35 OTHER HABITATIONS IN TIRUVANNAMALAI DISTRICT
Operation and Maintenance of the Electro Mechanical installations, equipments, components, pipelines valves and appurtenances, water retaining structures including protecton of all schemee components from damages/ theft undertaking legal actions for such untoward incidents, preventive maintenance, disinfection and deliverance of water as per quality standards and supply of earmarked quantity of water to the beneficiaries as per Annexure .........., carrying out the O&M as per standard operating procedures, Acts and rules in force and as directed by TWAD Board Oficers and excluding cost towards attending leak, burst repair and replacement works to electro mechanical installations consumables for disinfection of water, cleaning of all water retaining structure, electricity .
Repair & Renewals and Leak & Bursts :
Attending Leaks in the PVC pipelines of this CWSS for the following items, as per the standard procedure including earthwork excavation, dewatering, removing, relaying, jointing, civil works, cost of materials and all other incidental charges, etc complete within the stipulated time limit as directed by the TWAD Board officers.
PVC 4 KSC Pipes_Minor Leak
63mm OD PVC 4 KSC pipes_Minor Leak
75mm OD PVC 4 KSC pipes_Minor Leak
90mm OD PVC 4 KSC pipes_Minor Leak
110mm OD PVC 4 KSC pipes_Minor Leak
140mm OD PVC 4 KSC pipes_Minor Leak
200mm OD PVC 4 KSC pipes_Minor Leak
PVC 4 KSC Pipes_Major Leak
90mm OD PVC 4 KSC pipes_Major Leak
200mm OD PVC 4 KSC pipes_Major Leak
PVC 6 KSC Pipes_Minor Leak
200mm OD PVC 6 KSC pipes_Minor Leak
PVC 6 KSC Pipes_Major Leak
200mm OD PVC 6 KSC pipes_Major Leak
Attending Leaks/Bursts in the HDPE pipelines of this CWSS for the following items, as per the standard procedure including earthwork excavation, dewatering, removing, relaying, jointing by Electro fusion/butt Joint, civil works, cost of materials and all other incidental charges, etc complete within the stipulated time limit as directed by the TWAD Board officers.
HDPE PN 6 Pipes_Minor Leaks
90mm HDPE PN 6 pipes_Minor Leak
110mm HDPE PN 6 pipes_Minor Leak
140mm HDPE PN 6 pipes_Minor Leak
200mm HDPE PN 6 pipes_Minor Leak
HDPE PN 6 Pipes_Major Leaks
90mm HDPE PN 6 pipes_Major Leak
110mm HDPE PN 6 pipes_Major Leak
140mm HDPE PN 6 pipes_Major Leak
200mm HDPE PN 6 pipes_Major Leak
Attending leaks and bursts in GI pipes of various sizes including Supply and delivery of following G I PIPES (MEDIUM) AS PER IS 1239/PART I/2004 and Lowering GI pipes and specials in the trenches and laying to proper grade and alignment, jointing with GI Specials and as directed by the TWAD Officers
80mm GI Pipe leak above GL
100mm GI Pipe leak above GL
125mm GI Pipe leak above GL
150mm GI Pipe leak above GL
Attending joint (Collar) Leaks in the AC pipelines of this CWSS for the following items, as per the standard procedure including earthwork excavation, dewatering, removing, relaying, jointing, civil works, cost of materials and all incidental charges, etc complete within the stipulated time limit as specified in Clause 2.6.4 of General conditions of Contract
AC Pipe_Collar Leak
150mm AC_Collar Leak
200mm AC_Collar Leak
AC Pipe_Minor Leak centre crack
150mm AC Pipe_MS Cut Barrel
200mm AC Pipe_MS Cut Barrel
Attending Leaks/Bursts in the DI pipelines of this CWSS for the following items, as per the standard procedure including earthwork excavation, dewatering, removing, relaying, jointing, civil works, cost of materials and all incidental charges, etc complete within the stipulated time limit as specified in Clause 2.6.4 of General conditions of Contract
DI Pipes_Minor Leak
150mm DI pipes - Minor leak
DI Pipes_Major Leak
150mm DI pipes - Major leak
Labour for cutting open B.T. Roads (or) Maccadam road for laying water mains - 15 cm thick (SOR VOL II P.195)
For all size Pumping mains
Road Restoration with PCC 1:2:4 using 20 mm HBGS for the Concrete Road cut Portion after the pipes are laid, joined and tested complete and as directed by TWAD Board Officers - 15 cm thick
For all size Pumping mains
Supply and delivery of following sizes of HDPE PIPES - PE 100 AS PER IS 4984/2016 (Pre-Compounded Resin) inclusive of transportation charges to stockyard excluding unloading anywhere in Tamilnadu etc, complete and as directed by the TWAD Board officers. (SOR VOL II P.14)
200mm HDPE PN 6
140mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
Earth work excavation and depositing on bank with initial lead of 10 m and initial lift of 2m in narrow trenches for laying of pipes for water supply in the following types of soil
Hard stiff clay, stiff black cotton, hard red earth, shales, murrum gravel, stoney earth and earth mixed with small size boulders and hard gravelly soil. (SOR VOL II P.192)
200mm HDPE PN 6
140mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
Lowering HDPE pipes and specials to trench and laying to proper grade and alignment and as directed by the TWAD Officers. (SOR VOL II P.171)
200mm HDPE PN 6
140mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
Jointing HDPE Pipes and Specials by butt fusion welding / electro fusion welding joints using fusion equipment as per ISO 21307-2011 and as per IS 7634 (part-2) : 2012 including cost of hire charges for butt fusion equipment power supply arrangements etc., complete as per directed by TWAD Board Officers. (SOR VOL II P.184)
200mm HDPE PN 6
140mm HDPE PN 6
110mm HDPE PN 6
Refiling with excavated sand or other loose soil complying with standerd specification in layers of 15 cm thick well rammed and consolidated after pipes and specials are laid and tested. (SOR VOL II P.192)
200mm HDPE PN 6
140mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
Pumpsets
Carrying out the following repair works occuring during the maintenance period in the Electrical, Mechanical and Elctro-mechanical items to bring back the scheme / components into normal running conditition as per standard specification including all labour charges, cost of materials and all incidental charges within the stipulated time limit etc., complete as specified in Clause 2.8 of General conditions of Contract Part II etc as directed by TWAD Board officers
Attending the Rewinding, Repair and Renewal works in various capacity Open Well Submersible Pumpsets
Removing the Submersible pumpset by using tripod set after disconnecting the power supply cable and delivery pipe line fittings
5HP -OWS
Transporting the pumpset from Pump House to work shop.
5HP -OWS
Rewinding the submersible motor using best quality winding wire including cost of wire, Sleeve, other insulating and fibre class materials after deducting the cost of old materials.
5HP -OWS
Reconditioning the worn-out shaft and fittings, impeller and Gun Metal/ SS Bushes including cost of lath work & labour charges etc.,
5HP -OWS
Replacement of carbon type thrust bearing and pumpside Gun Metal Bush including cost of labour charges after deducting the cost of old material
5HP -OWS
Transporting charges for Submersible pumpset from work shop to Pump House after attending repair works.
5HP -OWS
Re-erection of pumpset in the Sump / Well by using tripod set and required Rubber washer and Bolt & Nuts and connecting the power supply cable and delivery pipeline arrangements testing to trial pumping.
5HP -OWS
Attending the Rewinding, Repair and Renewal works in Monoblock Pumpset
3HP_Monoblock
Removing the Monblock Centrifugal Pumpset from the Bed assembly by using contractors tools and materials after disconnecting the power supply cable and delivery pipe line fittings with required dummy plate arrangements.
Transporting the pumpset from the Pumping Station to work shop.
Removing the Burnt winding materials from the stator slots and cleaning the stator and rotor assembly by using contractor tools and materials
Reconditioning the worn-out shaft and fittings, impeller and Rope gland bush including cost of lath work & labour charges etc.,
Rewinding the Monblock Centrifugal Motor using best quality winding wire including cost of wire, Sleeve, other insulating and fibre class materials after deducting the cost of old materials.
Replacement of driven end (No: XXXX) and Non driven end (No:XXXX) Bearings suitable for Monblock Centrifugal Motor including the cost of Bearing and labour charges after deducting the cost of old materials.
Replacement of cooling fan at motor end and Terminal Board for suitable for Monblock Centrifugal Pumpset and labour charges after deducting the cost of old materials.
Transporting charges for Monblock Centrifugal Pumpset from work shop to Pump House after attending repair works.
Re-erection of pumpset in the Sump / Well by using required Rubber washer and Bolt & Nuts and connecting the power supply cable and delivery pipe line arrangements, testing and trial pumping.
7.5HP_Monoblock
Removing the Monblock Centrifugal Pumpset from the Bed assembly by using contractors tools and materials after disconnecting the power supply cable and delivery pipe line fittings with required dummy plate arrangements.
Transporting the pumpset from the Pumping Station to work shop.
Removing the Burnt winding materials from the stator slots and cleaning the stator and rotor assembly by using contractor tools and materials
Reconditioning the worn-out shaft and fittings, impeller and Rope gland bush including cost of lath work & labour charges etc.,
Rewinding the Monblock Centrifugal Motor using best quality winding wire including cost of wire, Sleeve, other insulating and fibre class materials after deducting the cost of old materials.
Replacement of driven end (No: XXXX) and Non driven end (No:XXXX) Bearings suitable for Monblock Centrifugal Motor including the cost of Bearing and labour charges after deducting the cost of old materials.
Replacement of cooling fan at motor end and Terminal Board for suitable for Monblock Centrifugal Pumpset and labour charges after deducting the cost of old materials.
Transporting charges for Monblock Centrifugal Pumpset from work shop to Pump House after attending repair works.
Re-erection of pumpset in the Sump / Well by using required Rubber washer and Bolt & Nuts and connecting the power supply cable and delivery pipe line arrangements, testing and trial pumping.
Attending the Rewinding and replacement of bearings of Induction Motor for Horizontal Split Casing Pumpsets
50HP -HSC_Motor
Charges for removing the motor from bed after disconnection of power supply cable, Earthing line and Coupling arrangements by using contractor tools and materials.
Transportation charges for conveying the motor from the Booster Station to Our work shop including loading and unloading charges.
Labour Charges for removing the two end side cover with fan arrangements and the damaged driven end and non driven end bearings.
Charges for removing the burnt wires from the rotor assembly and cleaning and checking the slots of rotor and labour charges for rewinding of Centrifugal Squirrel Cage Induction Motor after deducting the cost of old materials and including suppy and delivery of Class ‘F’ Insulation Super enameled Copper wire, required for rewinding and Fiber Glass wire, Fiber Glass Sleeves, Class ‘F’ insulation paper, Copper Socket and FG thread required for rewinding of Squirrel Cage Induction Motor
Labour Charges for reconditioning the worn out shaft for driven end and non driven end bearing seating, knurling, bend checking, and etc.,
Supply and delivery of Driven End and Non Driven End bearings suitable for the required Induction Motor
Labour Charges fixing the DE and NDE bearings correctly and neatly with required lubrications by contractors tools & Materials
Transportation charges for conveying the motor from work shop to Pumping Station
Charges for reassembling the motor with bed and pump coupling, alignment checking connecting power supply cable, including required bolt and Nuts and testing trial running etc.,
Attending the Repair and Reconditioning works of various capacities of Horizontal Split Casing Pumpsets
50HP -HSC_Pump
Charges for removing the motor from bed assembly after dismantling of Coupling arrangements and removing the pump assembly and including the provision of dummy flange arrangements by using contractor tools and materials.
Transportation charges for conveying the Pump assembly from the Pumping Station to work shop including loading and unloading charges.
Labour Charges for removing the impeller by using hydralic system, DE and NDE Bearings
Labour Charges for reconditioning the worn out shaft including welding the shaft to suit the impeller and suit the driven end and non driven end bearing seating, knurling, bend checking and etc.,
Supply, delivery and fixing of Shaft sleeves in Gun metal including machining charges and making key ways after deducting the scrap materials
Balancing of Rotor with impeller both dyanamically and Hydralically by using required dyanamic balancing machine
Supply, delivery and fixing of Gunmetal seal rings for impeller neck including machining charges after deducting the scrap materials
Supply and delivery of Driven End and Non Driven End bearings
Labour Charges fixing the DE and NDE bearings correctly and neatly with required lubrications by contractors tools & Materials
Transportation charges for conveying the Pump assembly from work shop to Pumping Station.
Charges for reassembling the Pump with Motor by using pulley and alignment checking, including required bolt and Nuts and testing trial running etc.,
Attending the Rewinding and replacement of bearings of Induction Motor for Vertical Turbine Pumpset
25HP -VT_Motor
Charges for removing the motor from bed after disconnection of power supply cable, Earthing line and Coupling arrangements by using contractor tools and materials.
Transportation charges for conveying the motor from the Station to Our work shop including loading and unloading charges.
Labour Charges for removing the two end side cover with fan arrangements and Dismantling the damaged NDE Side ball Bearing from the motor after removing the Rachet assembly load bearing safely and Fixing the New ball Bearing in the appropriate place with required lubricants without any damage to the motor shaft and winding after deducting the old damaged materials.
Charges for removing the burnt wires from the rotor assembly and cleaning and checking the slots of rotor and labour charges for rewinding of Centrifugal Squirrel Cage Induction Motor after deducting the cost of old materials and including suppy and delivery of Class ‘F’ Insulation Super enameled Copper wire, required for rewinding and Fiber Glass wire, Fiber Glass Sleeves, Class ‘F’ insulation paper, Copper Socket and FG thread required for rewinding of Squirrel Cage Induction Motor
Labour Charges for reconditioning the worn out shaft for driven end and non driven end bearing seating, knurling, bend checking, and etc.,
Supply and delivery of Non Driven End Deep Grove ball Bearing SKF Make suitable for the Squirrel Gage Induction Motor.
Labour Charges fixing the NDE bearings correctly and neatly with required lubrications by contractors tools & Materials
Transportation charges for conveying the motor from work shop to pumping Station
Charges for reassembling the motor with bed and pump coupling, alignment checking connecting power supply cable, including required bolt and Nuts and testing trial running etc.,
Attending the Repair and Reconditioning works of various capacities of Vertical Turbine Pumps
25HP -VT_Pump
Charges for Removing the Hollow shaft Squirrel cage Induction Motor after disconnecting the Power supply Cable, Discharge Head, Head Shaft and Stuffing Box by using contractor tools at Collector Well / Collection Sump
Charges for removing the all Column pipes of VT Pumpset each 1.5 m / 2.00 m to length and bowl assemblly for attending Pump repair works
Transportation charges for conveying the VT Pump bowl assembly from Collector Well Pump room to Work Shop including usage of trolley along the Foot bridge and Van
Reconditioning of Stuffing Box for providing bronze bush suitable for fixing thr Rope Gland and Head Shaft to avoid frequent damaging of rope and to avoid spreading of more leakage water from the Rope Gland including lath works etc., complete.
Charges for Lathe work of reconditioning of Pump SS Shaft with balancing, SS Bushes and sleeves, charges for Spider bore nd outer dimension phase out lath works, reconditioning of impeller and impeller ring & charges fixing the bearing and bronze bushes in the bowl assembly including correct setting of impeller allignment etc complete
Transportation charges for conveying the VT Pump bowl assembly from our work shop to Collector Well Pump room including usage of trolley along the Foot bridge and Van
Charges for reassembling the all Column pipes of Turbine Pump set and bowl assemblly after attending Pump repair works in the proper allignment after attending the cleaning and painting work in the coloumn pipe and body of the bowl assembly
Re errection of reconditioned stuffing box, new Head shaft, Discharge head and Motor, fixing the Rachet load bearing assembly including filling of required 90 grade oil and Connecting the 440V AC incoming Cable to the Motor Terminal and fixing new rope in the rope gland and Checking Motor Pumpset Alignment and Rotation and testing with load etc.,Complete
SUPPLY AND DELIVERY OF SERVICE CONNECTION ACCESSORIES L.T. 1100V PVC ALUMINIUM ARMOURED UNDER GROUND CABLE WITH ISI MARK
25 Sq.mm 3.5 Core
50 Sq.mm 3.5 Core
95 Sq.mm 3.5 Core
SUPPLY AND DELIVERY OF L.T. CABLES following size sq mm 3 CORE 1.1 KV GRADE ARMOURED ALUMINIUM CONDUCTOR CROSS LINKED POLY ETHYLENE INSULATED PVC SHEATHED CABLES CONFORMING TO IS 7098 (PART I)/1988 WITH ISI MARKING
25 Sq.mm 3 Core
50 Sq.mm 3 Core
95 Sq.mm 3 Core
SUPPLY AND DELIVERY OF PVC INSULATED AND SHEATHED following sq mm 3 CORE FLAT TYPE COPPER CABLE CONFORMING TO IS 694/1989
SUPPLY AND DELIVERY OF 150mm dia Pressure Gauge and Vaccum guage including all accessories as per specification (For Suction and Delivery to be mounted on wall on Teak Wood Board)
Supply, delivey and fixing of MOULDED CASE CIRCUIT BREAKER (MCCB) WITH THERMO MAGNETIC RELEASE - 4 Pole
Range - 63/100A
Range - 125A
Supply, delivey and fixing of RATE FOR MIXED DI-ELECTRIC CAPACITOR WITH TNEB TEST CERTIFICATE WITH ACCESSORIES INCLUDING BANKING CONFORMIING TO IS 2834.
Supply, delivey and fixing of Electro magnetic contactors of suitable capacity in AC Three Phase rating, conforming to IS/IEC 60947-4-1.
Supply, delivey and fixing of Overload Relays: Directly operated Bimetallic Thermal overload relay which operates in case of overload and also in case of under voltage with manual and auto reset mode.
Supply, delivey and fixing of Preventer – Single Phasing - Electric Motor protection device against single phasing. The device should protect the motor against single phasing, reverse phasing and unbalance supply. The device should be suitable for any auxillary device and have provisions for mounting in panel boards. Operate without need of any auxiliary supply.
Electric Motor protection device against dry running. The device should protect the motor against Dry running. The device should be suitable for any auxillary device and have provisions for mounting in panel boards. Operate without need of any auxiliary supply
Supply, delivey and fixing of FUSE UNITS (ANCHOR /EQUIVALENT)
100 Amps Porcelain fuse unit (500 V)
200 Amps Porcelain fuse unit (500 V)
Supply, delivey and fixing of CHANGE OVER SWITCHES
32 Amps three phase 500 V 4 pole Change over switch
63 Amps three phase 500 V 4 pole Change over switch
200 Amps three phase 500 V 4 pole Change over switch
Supply, delivey and fixing of PVC INSULATED SINGLE CORE MULTI STRAND FIRE RETARDANT FLEXIBLE COPPER CABLE WITH ISI MARK CONFORMING TO IS
Supply, delivey and fixing of HRC - FUSES - HIGHER END
HRC - 16 Amps
HRC - 63 Amps
HRC - 200 Amps
Supply and delivery of the following Electrical Works :consumable items at the site of work to carryout the general maintenace works
Voltmeter Digital - Three Phase Class 1-AC
Ammeter Digital - Three Phase Class 1-1A
20W 4 Feet LED Fitting with LED (Higher end)
LED OUTDOOR FITTINGS (LIGHT EMITTING DIODE) LOWER END 25W LED Street Light Fitting with LED
Supply and delivery of the following consumable items for Pump Set repairs at the site of work to carryout the general maintenace works
80mm GM Gate valve
R I Sheet
Bolts and Nuts - All sizes
80mm GI Pipe
100mm GI pipe
125mm GI pipe
150mm GI pipe
Supply, delivery and fixing of DI D/F Gate sluice/scour valves (soft seated) resilient seated soft sealing Gate Valves(Sluice Valves) with body Bonnet of Ductile cast iron of Grade GGG 40 or equivalent grade, Wedge fully rubber lined with EPDM replaceable spindle nut without gland packing and with 3 O- Ring protection on the shaft and seals of NBR and the valves should be of Vacuum tight and 100% leak proof with face to face dimensions as per BS 5163- 89/ISI 14846-2000/DIN 3202 F4. All the valves should be with electrostatic powder coating both inside and out side with pocket less straight through body passage. All the valves are to be compatible for buried application with pressure rating PN 10/16 and with 5 years warranty.
100mm DI Gate Valve
150mm DI Gate Valve
200mm DI Gate Valve
250mm DI Gate Valve
Manufacture, Supply and Delivery of Tamper proof DI single chamber double orifice triple function (ventilating, admiting & ventilating during operation) air release valve with pressure rating PN 10/16 with body and cover made of Ductile Iron of Grade GGG 40 or GGG 50, conforming to IS 1865 with Food Grade Epoxy Powder coating (EP-P) inside and for outside of colour blue RAL 5005. All internal parts such as float, shell etc., cover bolts, made of Austenitic alloy steel of SS AISI 304/316. The float shall be made of Polytetrafluroethylene/ Austenitic alloy steel of AISI 304/316. Gaskets and seals of EPDM / Neoprene rubber for TWAD Board works anywhere in Tamil Nadu and with 5 years warranty
50mm DI Air Valve
80mm DI Air Valve
Supply, delivey and fixing of C.I. DOUBLE AIR VALVE AS PER ISI 14845/2000 AND WITH 5 YEARS WARRANTY
40mm CI Air Valve
50mm CI Air Valve
80mm CI Air Valve
SUMP CLEANING
Cleaning of all storage points like sumps, elevated reservoirs of various capacities available in this scheme at a frequency of once in two months including scrapping the inner side of compartment completely, scouring / dewatering / desilting using required machineries, materials, labour and all other incidental charges, application of bleaching powder/ solution etc complete.
For 75001 to 100000 lit cap sump
Desilting light or sandysoil or silt from collection well below water level including the charges for special tools & plants and air compressor etc complete
Supply, delivery and application of disinfection dosages as per standard norms / guidelines including cost of all disinfectents (Such as bleaching powder, chlorine cylinder, silver ionization rods, sodium hypochlorite solution, common salt as applicable to this CWSS), labour charges and all incidental charges for disinfection of the water supplied from this CWSS to ensure the portable quality of disinfected water at all delivery points / tail ends, testing of water samples including additional / required / instructed dosage during the period of Flood/ Calamities etc., complete.
Supply delivery of Bleaching Powder as per Relevant IS Specification
Supply delivery of Liquid Chlorine as per Relevant IS Specification
Supply delivery of Alum as per Relevant IS Specification
CWSS TO DEVIGAPURAM AND 11 OTHER HABITATIONS IN WEST ARANI AND CHETPET UNION OFTHIRUVANNAMALAI DISTRICT
Repair & Renewals and Leak & Bursts :
Attending Leaks in the PVC pipelines of this CWSS for the following items, as per the standard procedure including earthwork excavation, dewatering, removing, relaying, jointing, civil works, cost of materials and all other incidental charges, etc complete within the stipulated time limit as directed by the TWAD Board officers.
PVC 4 KSC Pipes_Minor Leak
75mm OD PVC 4 KSC pipes_Minor Leak
90mm OD PVC 4 KSC pipes_Minor Leak
140mm OD PVC 4 KSC pipes_Minor Leak
PVC 4 KSC Pipes_Major Leak
75mm OD PVC 4 KSC pipes_Major Leak
90mm OD PVC 4 KSC pipes_Major Leak
140mm OD PVC 4 KSC pipes_Major Leak
PVC 6 KSC Pipes_Minor Leak
140mm OD PVC 6 KSC pipes_Minor Leak
PVC 6 KSC Pipes_Major Leak
140mm OD PVC 6 KSC pipes_Major Leak
Attending Leaks/Bursts in the HDPE pipelines of this CWSS for the following items, as per the standard procedure including earthwork excavation, dewatering, removing, relaying, jointing by Electro fusion/butt Joint, civil works, cost of materials and all other incidental charges, etc complete within the stipulated time limit as directed by the TWAD Board officers.
HDPE PN 6 Pipes_Minor Leaks
75mm HDPE PN 6 pipes_Minor Leak
90mm HDPE PN 6 pipes_Minor Leak
140mm HDPE PN 6 pipes_Minor Leak
HDPE PN 6 Pipes_Major Leaks
75mm HDPE PN 6 pipes_Major Leak
90mm HDPE PN 6 pipes_Major Leak
140mm HDPE PN 6 pipes_Major Leak
Attending leaks and bursts in GI pipes of various sizes including Supply and delivery of following G I PIPES (MEDIUM) AS PER IS 1239/PART I/2004 and Lowering GI pipes and specials in the trenches and laying to proper grade and alignment, jointing with GI Specials and as directed by the TWAD Officers
65mm GI Pipe leak above GL
80mm GI Pipe leak above GL
125mm GI Pipe leak above GL
Attending joint (Collar) Leaks in the AC pipelines of this CWSS for the following items, as per the standard procedure including earthwork excavation, dewatering, removing, relaying, jointing, civil works, cost of materials and all incidental charges, etc complete within the stipulated time limit as specified in Clause 2.6.4 of General conditions of Contract
AC Pipe_Collar Leak
150mm AC_Collar Leak
200mm AC_Collar Leak
AC Pipe_Minor Leak centre crack
150mm AC Pipe_MS Cut Barrel
200mm AC Pipe_MS Cut Barrel
Labour for cutting open B.T. Roads (or) Maccadam road for laying water mains - 15 cm thick (SOR VOL II P.195)
For all size Pumping mains
Road Restoration with PCC 1:2:4 using 20 mm HBGS for the Concrete Road cut Portion after the pipes are laid, joined and tested complete and as directed by TWAD Board Officers - 15 cm thick
For all size Pumping mains
Supply and delivery of following sizes of HDPE PIPES - PE 100 AS PER IS 4984/2016 (Pre-Compounded Resin) inclusive of transportation charges to stockyard excluding unloading anywhere in Tamilnadu etc, complete and as directed by the TWAD Board officers. (SOR VOL II P.14)
160mm HDPE PN 6
140mm HDPE PN 6
90mm HDPE PN 6
75mm HDPE PN 6
Earth work excavation and depositing on bank with initial lead of 10 m and initial lift of 2m in narrow trenches for laying of pipes for water supply in the following types of soil
Hard stiff clay, stiff black cotton, hard red earth, shales, murrum gravel, stoney earth and earth mixed with small size boulders and hard gravelly soil. (SOR VOL II P.192)
160mm HDPE PN 6
140mm HDPE PN 6
90mm HDPE PN 6
75mm HDPE PN 6
Lowering HDPE pipes and specials to trench and laying to proper grade and alignment and as directed by the TWAD Officers. (SOR VOL II P.171)
160mm HDPE PN 6
140mm HDPE PN 6
90mm HDPE PN 6
75mm HDPE PN 6
Jointing HDPE Pipes and Specials by butt fusion welding / electro fusion welding joints using fusion equipment as per ISO 21307-2011 and as per IS 7634 (part-2) : 2012 including cost of hire charges for butt fusion equipment power supply arrangements etc., complete as per directed by TWAD Board Officers. (SOR VOL II P.184)
160mm HDPE PN 6
140mm HDPE PN 6
Refiling with excavated sand or other loose soil complying with standerd specification in layers of 15 cm thick well rammed and consolidated after pipes and specials are laid and tested. (SOR VOL II P.192)
160mm HDPE PN 6
140mm HDPE PN 6
90mm HDPE PN 6
75mm HDPE PN 6
Pumpsets
Carrying out the following repair works occuring during the maintenance period in the Electrical, Mechanical and Elctro-mechanical items to bring back the scheme / components into normal running conditition as per standard specification including all labour charges, cost of materials and all incidental charges within the stipulated time limit etc., complete as specified in Clause 2.8 of General conditions of Contract Part II etc as directed by TWAD Board officers
Attending the Rewinding, Repair and Renewal works in various capacity Open Well Submersible Pumpsets
Removing the Submersible pumpset by using tripod set after disconnecting the power supply cable and delivery pipe line fittings
5HP -OWS
Transporting the pumpset from Pump House to work shop.
5HP -OWS
Rewinding the submersible motor using best quality winding wire including cost of wire, Sleeve, other insulating and fibre class materials after deducting the cost of old materials.
5HP -OWS
Reconditioning the worn-out shaft and fittings, impeller and Gun Metal/ SS Bushes including cost of lath work & labour charges etc.,
5HP -OWS
Replacement of carbon type thrust bearing and pumpside Gun Metal Bush including cost of labour charges after deducting the cost of old material
5HP -OWS
Transporting charges for Submersible pumpset from work shop to Pump House after attending repair works.
5HP -OWS
Re-erection of pumpset in the Sump / Well by using tripod set and required Rubber washer and Bolt & Nuts and connecting the power supply cable and delivery pipeline arrangements testing to trial pumping.
5HP -OWS
Attending the Rewinding and replacement of bearings of Induction Motor for Horizontal Split Casing Pumpsets
30HP -HSC_Motor
Charges for removing the motor from bed after disconnection of power supply cable, Earthing line and Coupling arrangements by using contractor tools and materials.
Transportation charges for conveying the motor from the Booster Station to Our work shop including loading and unloading charges.
Labour Charges for removing the two end side cover with fan arrangements and the damaged driven end and non driven end bearings.
Charges for removing the burnt wires from the rotor assembly and cleaning and checking the slots of rotor and labour charges for rewinding of Centrifugal Squirrel Cage Induction Motor after deducting the cost of old materials and including suppy and delivery of Class ‘F’ Insulation Super enameled Copper wire, required for rewinding and Fiber Glass wire, Fiber Glass Sleeves, Class ‘F’ insulation paper, Copper Socket and FG thread required for rewinding of Squirrel Cage Induction Motor
Labour Charges for reconditioning the worn out shaft for driven end and non driven end bearing seating, knurling, bend checking, and etc.,
Supply and delivery of Driven End and Non Driven End bearings suitable for the required Induction Motor
Labour Charges fixing the DE and NDE bearings correctly and neatly with required lubrications by contractors tools & Materials
Transportation charges for conveying the motor from work shop to Pumping Station
Charges for reassembling the motor with bed and pump coupling, alignment checking connecting power supply cable, including required bolt and Nuts and testing trial running etc.,
Attending the Repair and Reconditioning works of various capacities of Horizontal Split Casing Pumpsets
30HP -HSC_Pump
Charges for removing the motor from bed assembly after dismantling of Coupling arrangements and removing the pump assembly and including the provision of dummy flange arrangements by using contractor tools and materials.
Transportation charges for conveying the Pump assembly from the Pumping Station to work shop including loading and unloading charges.
Labour Charges for removing the impeller by using hydralic system, DE and NDE Bearings
Labour Charges for reconditioning the worn out shaft including welding the shaft to suit the impeller and suit the driven end and non driven end bearing seating, knurling, bend checking and etc.,
Supply, delivery and fixing of Shaft sleeves in Gun metal including machining charges and making key ways after deducting the scrap materials
Balancing of Rotor with impeller both dyanamically and Hydralically by using required dyanamic balancing machine
Supply, delivery and fixing of Gunmetal seal rings for impeller neck including machining charges after deducting the scrap materials
Supply and delivery of Driven End and Non Driven End bearings
Labour Charges fixing the DE and NDE bearings correctly and neatly with required lubrications by contractors tools & Materials
Transportation charges for conveying the Pump assembly from work shop to Pumping Station.
Charges for reassembling the Pump with Motor by using pulley and alignment checking, including required bolt and Nuts and testing trial running etc.,
SUPPLY AND DELIVERY OF SERVICE CONNECTION ACCESSORIES L.T. 1100V PVC ALUMINIUM ARMOURED UNDER GROUND CABLE WITH ISI MARK
25 Sq.mm 3.5 Core
50 Sq.mm 3.5 Core
SUPPLY AND DELIVERY OF L.T. CABLES following size sq mm 3 CORE 1.1 KV GRADE ARMOURED ALUMINIUM CONDUCTOR CROSS LINKED POLY ETHYLENE INSULATED PVC SHEATHED CABLES CONFORMING TO IS 7098 (PART I)/1988 WITH ISI MARKING
25 Sq.mm 3 Core
50 Sq.mm 3 Core
SUPPLY AND DELIVERY OF PVC INSULATED AND SHEATHED following sq mm 3 CORE FLAT TYPE COPPER CABLE CONFORMING TO IS 694/1989
SUPPLY AND DELIVERY OF 150mm dia Pressure Gauge and Vaccum guage including all accessories as per specification (For Suction and Delivery to be mounted on wall on Teak Wood Board)
Supply, delivey and fixing of MOULDED CASE CIRCUIT BREAKER (MCCB) WITH THERMO MAGNETIC RELEASE - 4 Pole
Range - 63/100A
Range - 125A
Supply, delivey and fixing of RATE FOR MIXED DI-ELECTRIC CAPACITOR WITH TNEB TEST CERTIFICATE WITH ACCESSORIES INCLUDING BANKING CONFORMIING TO IS 2834.
Supply, delivey and fixing of Electro magnetic contactors of suitable capacity in AC Three Phase rating, conforming to IS/IEC 60947-4-1.
Supply, delivey and fixing of Overload Relays: Directly operated Bimetallic Thermal overload relay which operates in case of overload and also in case of under voltage with manual and auto reset mode.
Supply, delivey and fixing of Preventer – Single Phasing - Electric Motor protection device against single phasing. The device should protect the motor against single phasing, reverse phasing and unbalance supply. The device should be suitable for any auxillary device and have provisions for mounting in panel boards. Operate without need of any auxiliary supply.
Electric Motor protection device against dry running. The device should protect the motor against Dry running. The device should be suitable for any auxillary device and have provisions for mounting in panel boards. Operate without need of any auxiliary supply
Supply, delivey and fixing of FUSE UNITS (ANCHOR /EQUIVALENT)
63 Amps Porcelain fuse unit (500 V)
200 Amps Porcelain fuse unit (500 V)
Supply, delivey and fixing of CHANGE OVER SWITCHES
16 Amps three phase 500 V 4 pole Change over switch
32 Amps three phase 500 V 4 pole Change over switch
125 Amps three phase 500 V 4 pole Change over switch
Supply, delivey and fixing of PVC INSULATED SINGLE CORE MULTI STRAND FIRE RETARDANT FLEXIBLE COPPER CABLE WITH ISI MARK CONFORMING TO IS
Supply, delivey and fixing of HRC - FUSES - HIGHER END
HRC - 16 Amps
HRC - 32 Amps
HRC - 125 Amps
Supply and delivery of the following Electrical Works :consumable items at the site of work to carryout the general maintenace works
Voltmeter Digital - Three Phase Class 1-AC
Ammeter Digital - Three Phase Class 1-1A
20W 4 Feet LED Fitting with LED (Higher end)
LED OUTDOOR FITTINGS (LIGHT EMITTING DIODE) LOWER END 25W LED Street Light Fitting with LED
Supply and delivery of the following consumable items for Pump Set repairs at the site of work to carryout the general maintenace works
50mm GM Gate valve
65mm GM Gate valve
80mm GM Gate valve
100mm GM Gate valve
R I Sheet
Bolts and Nuts - All sizes
80mm GI Pipe
100mm GI pipe
125mm GI pipe
Supply, delivery and fixing of DI D/F Gate sluice/scour valves (soft seated) resilient seated soft sealing Gate Valves(Sluice Valves) with body Bonnet of Ductile cast iron of Grade GGG 40 or equivalent grade, Wedge fully rubber lined with EPDM replaceable spindle nut without gland packing and with 3 O- Ring protection on the shaft and seals of NBR and the valves should be of Vacuum tight and 100% leak proof with face to face dimensions as per BS 5163- 89/ISI 14846-2000/DIN 3202 F4. All the valves should be with electrostatic powder coating both inside and out side with pocket less straight through body passage. All the valves are to be compatible for buried application with pressure rating PN 10/16 and with 5 years warranty.
100mm DI Gate Valve
150mm DI Gate Valve
Manufacture, Supply and Delivery of Tamper proof DI single chamber double orifice triple function (ventilating, admiting & ventilating during operation) air release valve with pressure rating PN 10/16 with body and cover made of Ductile Iron of Grade GGG 40 or GGG 50, conforming to IS 1865 with Food Grade Epoxy Powder coating (EP-P) inside and for outside of colour blue RAL 5005. All internal parts such as float, shell etc., cover bolts, made of Austenitic alloy steel of SS AISI 304/316. The float shall be made of Polytetrafluroethylene/ Austenitic alloy steel of AISI 304/316. Gaskets and seals of EPDM / Neoprene rubber for TWAD Board works anywhere in Tamil Nadu and with 5 years warranty
50mm DI Air Valve
Supply, delivey and fixing of C.I. DOUBLE AIR VALVE AS PER ISI 14845/2000 AND WITH 5 YEARS WARRANTY
40mm CI Air Valve
50mm CI Air Valve
SUMP CLEANING
Cleaning of all storage points like sumps, elevated reservoirs of various capacities available in this scheme at a frequency of once in two months including scrapping the inner side of compartment completely, scouring / dewatering / desilting using required machineries, materials, labour and all other incidental charges, application of bleaching powder/ solution etc complete.
For 15001 to 30000 lit cap sump
Desilting light or sandysoil or silt from collection well below water level including the charges for special tools & plants and air compressor etc complete
Supply, delivery and application of disinfection dosages as per standard norms / guidelines including cost of all disinfectents (Such as bleaching powder, chlorine cylinder, silver ionization rods, sodium hypochlorite solution, common salt as applicable to this CWSS), labour charges and all incidental charges for disinfection of the water supplied from this CWSS to ensure the portable quality of disinfected water at all delivery points / tail ends, testing of water samples including additional / required / instructed dosage during the period of Flood/ Calamities etc., complete.
Supply delivery of Bleaching Powder as per Relevant IS Specification
COMBINED WATER SUPPLY SCHEME TO PADAVEDU AND 46 OTHER RURAL HABITATIONS IN TIRUVANNAMALAI DISTRICT
Operation and Maintenance of the Electro Mechanical installations, equipments, components, pipelines valves and appurtenances, water retaining structures including protecton of all schemee components from damages/ theft undertaking legal actions for such untoward incidents, preventive maintenance, disinfection and deliverance of water as per quality standards and supply of earmarked quantity of water to the beneficiaries as per Annexure .........., carrying out the O&M as per standard operating procedures, Acts and rules in force and as directed by TWAD Board Oficers and excluding cost towards attending leak, burst repair and replacement works to electro mechanical installations consumables for disinfection of water, cleaning of all water retaining structure, electricity .
Repair & Renewals and Leak & Bursts :
Attending Leaks in the PVC pipelines of this CWSS for the following items, as per the standard procedure including earthwork excavation, dewatering, removing, relaying, jointing, civil works, cost of materials and all other incidental charges, etc complete within the stipulated time limit as directed by the TWAD Board officers.
PVC 4 KSC Pipes_Minor Leak
63mm OD PVC 4 KSC pipes_Minor Leak
75mm OD PVC 4 KSC pipes_Minor Leak
90mm OD PVC 4 KSC pipes_Minor Leak
110mm OD PVC 4 KSC pipes_Minor Leak
140mm OD PVC 4 KSC pipes_Minor Leak
160mm OD PVC 4 KSC pipes_Minor Leak
PVC 4 KSC Pipes_Major Leak
63mm OD PVC 4 KSC pipes_Major Leak
75mm OD PVC 4 KSC pipes_Major Leak
90mm OD PVC 4 KSC pipes_Major Leak
110mm OD PVC 4 KSC pipes_Major Leak
140mm OD PVC 4 KSC pipes_Major Leak
160mm OD PVC 4 KSC pipes_Major Leak
PVC 6 KSC Pipes_Minor Leak
50mm OD PVC 6 KSC pipes_Minor Leak
63mm OD PVC 6 KSC pipes_Minor Leak
75mm OD PVC 6 KSC pipes_Minor Leak
90mm OD PVC 6 KSC pipes_Minor Leak
110mm OD PVC 6 KSC pipes_Minor Leak
140mm OD PVC 6 KSC pipes_Minor Leak
160mm OD PVC 6 KSC pipes_Minor Leak
PVC 6 KSC Pipes_Major Leak
50mm OD PVC 6 KSC pipes_Major Leak
63mm OD PVC 6 KSC pipes_Major Leak
75mm OD PVC 6 KSC pipes_Major Leak
90mm OD PVC 6 KSC pipes_Major Leak
110mm OD PVC 6 KSC pipes_Major Leak
140mm OD PVC 6 KSC pipes_Major Leak
160mm OD PVC 6 KSC pipes_Major Leak
Attending Leaks/Bursts in the HDPE pipelines of this CWSS for the following items, as per the standard procedure including earthwork excavation, dewatering, removing, relaying, jointing by Electro fusion/butt Joint, civil works, cost of materials and all other incidental charges, etc complete within the stipulated time limit as directed by the TWAD Board officers.
HDPE PN 6 Pipes_Minor Leaks
63mm HDPE PN 6 pipes_Minor Leak
75mm HDPE PN 6 pipes_Minor Leak
110mm HDPE PN 6 pipes_Minor Leak
140mm HDPE PN 6 pipes_Minor Leak
160mm HDPE PN 6 pipes_Minor Leak
HDPE PN 6 Pipes_Major Leaks
63mm HDPE PN 6 pipes_Major Leak
75mm HDPE PN 6 pipes_Major Leak
110mm HDPE PN 6 pipes_Major Leak
140mm HDPE PN 6 pipes_Major Leak
160mm HDPE PN 6 pipes_Major Leak
Attending leaks and bursts in GI pipes of various sizes including Supply and delivery of following G I PIPES (MEDIUM) AS PER IS 1239/PART I/2004 and Lowering GI pipes and specials in the trenches and laying to proper grade and alignment, jointing with GI Specials and as directed by the TWAD Officers
50mm GI Pipe leak above GL
65mm GI Pipe leak above GL
80mm GI Pipe leak above GL
100mm GI Pipe leak above GL
125mm GI Pipe leak above GL
150mm GI Pipe leak above GL
Attending Leaks/Bursts in the DI pipelines of this CWSS for the following items, as per the standard procedure including earthwork excavation, dewatering, removing, relaying, jointing, civil works, cost of materials and all incidental charges, etc complete within the stipulated time limit as specified in Clause 2.6.4 of General conditions of Contract
DI Pipes_Minor Leak
150mm DI pipes - Minor leak
DI Pipes_Major Leak
150mm DI pipes - Major leak
Labour for cutting open B.T. Roads (or) Maccadam road for laying water mains - 15 cm thick (SOR VOL II P.195)
For all size Pumping mains
Road Restoration with PCC 1:2:4 using 20 mm HBGS for the Concrete Road cut Portion after the pipes are laid, joined and tested complete and as directed by TWAD Board Officers - 15 cm thick
For all size Pumping mains
Supply and delivery of following sizes of HDPE PIPES - PE 100 AS PER IS 4984/2016 (Pre-Compounded Resin) inclusive of transportation charges to stockyard excluding unloading anywhere in Tamilnadu etc, complete and as directed by the TWAD Board officers. (SOR VOL II P.14)
160mm HDPE PN 6
140mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
75mm HDPE PN 6
63mm HDPE PN 6
Earth work excavation and depositing on bank with initial lead of 10 m and initial lift of 2m in narrow trenches for laying of pipes for water supply in the following types of soil
Hard stiff clay, stiff black cotton, hard red earth, shales, murrum gravel, stoney earth and earth mixed with small size boulders and hard gravelly soil. (SOR VOL II P.192)
160mm HDPE PN 6
140mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
75mm HDPE PN 6
63mm HDPE PN 6
Lowering HDPE pipes and specials to trench and laying to proper grade and alignment and as directed by the TWAD Officers. (SOR VOL II P.171)
160mm HDPE PN 6
140mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
75mm HDPE PN 6
63mm HDPE PN 6
Jointing HDPE Pipes and Specials by butt fusion welding / electro fusion welding joints using fusion equipment as per ISO 21307-2011 and as per IS 7634 (part-2) : 2012 including cost of hire charges for butt fusion equipment power supply arrangements etc., complete as per directed by TWAD Board Officers. (SOR VOL II P.184)
160mm HDPE PN 6
140mm HDPE PN 6
110mm HDPE PN 6
Refiling with excavated sand or other loose soil complying with standerd specification in layers of 15 cm thick well rammed and consolidated after pipes and specials are laid and tested. (SOR VOL II P.192)
160mm HDPE PN 6
140mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
75mm HDPE PN 6
63mm HDPE PN 6
Pumpsets
Carrying out the following repair works occuring during the maintenance period in the Electrical, Mechanical and Elctro-mechanical items to bring back the scheme / components into normal running conditition as per standard specification including all labour charges, cost of materials and all incidental charges within the stipulated time limit etc., complete as specified in Clause 2.8 of General conditions of Contract Part II etc as directed by TWAD Board officers
Attending the Rewinding, Repair and Renewal works in various capacity Open Well Submersible Pumpsets
Removing the Submersible pumpset by using tripod set after disconnecting the power supply cable and delivery pipe line fittings
2HP -OWS
3HP -OWS
5HP -OWS
7.5HP -OWS
30HP -OWS
Transporting the pumpset from Pump House to work shop.
2HP -OWS
3HP -OWS
5HP -OWS
7.5HP -OWS
30HP -OWS
Rewinding the submersible motor using best quality winding wire including cost of wire, Sleeve, other insulating and fibre class materials after deducting the cost of old materials.
2HP -OWS
3HP -OWS
5HP -OWS
7.5HP -OWS
30HP -OWS
Reconditioning the worn-out shaft and fittings, impeller and Gun Metal/ SS Bushes including cost of lath work & labour charges etc.,
2HP -OWS
3HP -OWS
5HP -OWS
7.5HP -OWS
30HP -OWS
Replacement of carbon type thrust bearing and pumpside Gun Metal Bush including cost of labour charges after deducting the cost of old material
2HP -OWS
3HP -OWS
5HP -OWS
7.5HP -OWS
30HP -OWS
Transporting charges for Submersible pumpset from work shop to Pump House after attending repair works.
2HP -OWS
3HP -OWS
5HP -OWS
7.5HP -OWS
30HP -OWS
Re-erection of pumpset in the Sump / Well by using tripod set and required Rubber washer and Bolt & Nuts and connecting the power supply cable and delivery pipeline arrangements testing to trial pumping.
2HP -OWS
3HP -OWS
5HP -OWS
7.5HP -OWS
30HP -OWS
SUPPLY AND DELIVERY OF SERVICE CONNECTION ACCESSORIES L.T. 1100V PVC ALUMINIUM ARMOURED UNDER GROUND CABLE WITH ISI MARK
25 Sq.mm 3.5 Core
35 Sq.mm 3.5 Core
50 Sq.mm 3.5 Core
SUPPLY AND DELIVERY OF L.T. CABLES following size sq mm 3 CORE 1.1 KV GRADE ARMOURED ALUMINIUM CONDUCTOR CROSS LINKED POLY ETHYLENE INSULATED PVC SHEATHED CABLES CONFORMING TO IS 7098 (PART I)/1988 WITH ISI MARKING
25 Sq.mm 3 Core
35 Sq.mm 3 Core
50 Sq.mm 3 Core
SUPPLY AND DELIVERY OF PVC INSULATED AND SHEATHED following sq mm 3 CORE FLAT TYPE COPPER CABLE CONFORMING TO IS 694/1989
SUPPLY AND DELIVERY OF 150mm dia Pressure Gauge and Vaccum guage including all accessories as per specification (For Suction and Delivery to be mounted on wall on Teak Wood Board)
Supply, delivey and fixing of MOULDED CASE CIRCUIT BREAKER (MCCB) WITH THERMO MAGNETIC RELEASE - 4 Pole
Range - 63/100A
Range - 125A
Supply, delivey and fixing of RATE FOR MIXED DI-ELECTRIC CAPACITOR WITH TNEB TEST CERTIFICATE WITH ACCESSORIES INCLUDING BANKING CONFORMIING TO IS 2834.
Supply, delivey and fixing of Electro magnetic contactors of suitable capacity in AC Three Phase rating, conforming to IS/IEC 60947-4-1.
Supply, delivey and fixing of Overload Relays: Directly operated Bimetallic Thermal overload relay which operates in case of overload and also in case of under voltage with manual and auto reset mode.
Supply, delivey and fixing of Preventer – Single Phasing - Electric Motor protection device against single phasing. The device should protect the motor against single phasing, reverse phasing and unbalance supply. The device should be suitable for any auxillary device and have provisions for mounting in panel boards. Operate without need of any auxiliary supply.
Electric Motor protection device against dry running. The device should protect the motor against Dry running. The device should be suitable for any auxillary device and have provisions for mounting in panel boards. Operate without need of any auxiliary supply
Supply, delivey and fixing of FUSE UNITS (ANCHOR /EQUIVALENT)
63 Amps Porcelain fuse unit (500 V)
100 Amps Porcelain fuse unit (500 V)
200 Amps Porcelain fuse unit (500 V)
Supply, delivey and fixing of CHANGE OVER SWITCHES
32 Amps three phase 500 V 4 pole Change over switch
63 Amps three phase 500 V 4 pole Change over switch
200 Amps three phase 500 V 4 pole Change over switch
Supply, delivey and fixing of PVC INSULATED SINGLE CORE MULTI STRAND FIRE RETARDANT FLEXIBLE COPPER CABLE WITH ISI MARK CONFORMING TO IS
Supply, delivey and fixing of HRC - FUSES - HIGHER END
HRC - 32 Amps
HRC - 63 Amps
HRC - 200 Amps
Supply and delivery of the following Electrical Works :consumable items at the site of work to carryout the general maintenace works
Voltmeter Digital - Three Phase Class 1-AC
Ammeter Digital - Three Phase Class 1-1A
20W 4 Feet LED Fitting with LED (Higher end)
LED OUTDOOR FITTINGS (LIGHT EMITTING DIODE) LOWER END 25W LED Street Light Fitting with LED
Supply and delivery of the following consumable items for Pump Set repairs at the site of work to carryout the general maintenace works
50mm GM Gate valve
65mm GM Gate valve
80mm GM Gate valve
100mm GM Gate valve
R I Sheet
Bolts and Nuts - All sizes
50mm GI Pipe
65mm GI Pipe
80mm GI Pipe
100mm GI pipe
125mm GI pipe
150mm GI pipe
Supply, delivery and fixing of DI D/F Gate sluice/scour valves (soft seated) resilient seated soft sealing Gate Valves(Sluice Valves) with body Bonnet of Ductile cast iron of Grade GGG 40 or equivalent grade, Wedge fully rubber lined with EPDM replaceable spindle nut without gland packing and with 3 O- Ring protection on the shaft and seals of NBR and the valves should be of Vacuum tight and 100% leak proof with face to face dimensions as per BS 5163- 89/ISI 14846-2000/DIN 3202 F4. All the valves should be with electrostatic powder coating both inside and out side with pocket less straight through body passage. All the valves are to be compatible for buried application with pressure rating PN 10/16 and with 5 years warranty.
100mm DI Gate Valve
150mm DI Gate Valve
Manufacture, Supply and Delivery of Tamper proof DI single chamber double orifice triple function (ventilating, admiting & ventilating during operation) air release valve with pressure rating PN 10/16 with body and cover made of Ductile Iron of Grade GGG 40 or GGG 50, conforming to IS 1865 with Food Grade Epoxy Powder coating (EP-P) inside and for outside of colour blue RAL 5005. All internal parts such as float, shell etc., cover bolts, made of Austenitic alloy steel of SS AISI 304/316. The float shall be made of Polytetrafluroethylene/ Austenitic alloy steel of AISI 304/316. Gaskets and seals of EPDM / Neoprene rubber for TWAD Board works anywhere in Tamil Nadu and with 5 years warranty
50mm DI Air Valve
Supply, delivey and fixing of C.I. DOUBLE AIR VALVE AS PER ISI 14845/2000 AND WITH 5 YEARS WARRANTY
40mm CI Air Valve
50mm CI Air Valve
SUMP CLEANING
Cleaning of all storage points like sumps, elevated reservoirs of various capacities available in this scheme at a frequency of once in two months including scrapping the inner side of compartment completely, scouring / dewatering / desilting using required machineries, materials, labour and all other incidental charges, application of bleaching powder/ solution etc complete.
For 15001 to 30000 lit cap sump
For 30001 to 45000 lit cap sump
For 45001 to 60000 lit cap sump
Desilting light or sandysoil or silt from collection well below water level including the charges for special tools & plants and air compressor etc complete
Supply, delivery and application of disinfection dosages as per standard norms / guidelines including cost of all disinfectents (Such as bleaching powder, chlorine cylinder, silver ionization rods, sodium hypochlorite solution, common salt as applicable to this CWSS), labour charges and all incidental charges for disinfection of the water supplied from this CWSS to ensure the portable quality of disinfected water at all delivery points / tail ends, testing of water samples including additional / required / instructed dosage during the period of Flood/ Calamities etc., complete.
Supply delivery of Bleaching Powder as per Relevant IS Specification
CWSS TO VETTAVALAM RTP AND VAIPUR HABITATION IN TIRUVANNAMALAI DISTRICT
Operation and Maintenance of the Electro Mechanical installations, equipments, components, pipelines valves and appurtenances, water retaining structures including protecton of all schemee components from damages/ theft undertaking legal actions for such untoward incidents, preventive maintenance, disinfection and deliverance of water as per quality standards and supply of earmarked quantity of water to the beneficiaries as per Annexure .........., carrying out the O&M as per standard operating procedures, Acts and rules in force and as directed by TWAD Board Oficers and excluding cost towards attending leak, burst repair and replacement works to electro mechanical installations consumables for disinfection of water, cleaning of all water retaining structure, electricity .
Repair & Renewals and Leak & Bursts :
Attending joint (Collar) Leaks in the AC pipelines of this CWSS for the following items, as per the standard procedure including earthwork excavation, dewatering, removing, relaying, jointing, civil works, cost of materials and all incidental charges, etc complete within the stipulated time limit as specified in Clause 2.6.4 of General conditions of Contract
AC Pipe_Collar Leak
200mm AC_Collar Leak
AC Pipe_Minor Leak centre crack
200mm AC Pipe_MS Cut Barrel
Attending Leaks/Bursts in the DI pipelines of this CWSS for the following items, as per the standard procedure including earthwork excavation, dewatering, removing, relaying, jointing, civil works, cost of materials and all incidental charges, etc complete within the stipulated time limit as specified in Clause 2.6.4 of General conditions of Contract
DI Pipes_Minor Leak
200mm DI pipes - Minor leak
DI Pipes_Major Leak
200mm DI pipes - Major leak
Labour for cutting open B.T. Roads (or) Maccadam road for laying water mains - 15 cm thick (SOR VOL II P.195)
For all size Pumping mains
Road Restoration with PCC 1:2:4 using 20 mm HBGS for the Concrete Road cut Portion after the pipes are laid, joined and tested complete and as directed by TWAD Board Officers - 15 cm thick
For all size Pumping mains
Supply and conveying of DI DUCTILE IRON SOCKET/SPIGOT PIPES FOR CLASS K7 AS PER IS 8329/2000 for standard length including cost of pipe,testing charges at factory ,labour charges for loading,unloading and stacking at site etc.(SOR VOL II P.35)
200mm DI S/S K7 pipe
Supply and delivery of following sizes of HDPE PIPES - PE 100 AS PER IS 4984/2016 (Pre-Compounded Resin) inclusive of transportation charges to stockyard excluding unloading anywhere in Tamilnadu etc, complete and as directed by the TWAD Board officers. (SOR VOL II P.14)
90mm HDPE PN 6
Earth work excavation and depositing on bank with initial lead of 10 m and initial lift of 2m in narrow trenches for laying of pipes for water supply in the following types of soil
Hard stiff clay, stiff black cotton, hard red earth, shales, murrum gravel, stoney earth and earth mixed with small size boulders and hard gravelly soil. (SOR VOL II P.192)
200mm DI S/S K7 pipe
90mm HDPE PN 6
Lowering of D.I Pipes and specials in the trenches and laying to proper grade and alignment and as directed by the TWAD Officers.
200mm DI S/S K7 pipe
Jointing C.I/ D.I-S/S pipes and specials with rubber gaskets (tyton joint) including cost of lubricants. (including cost of jointing materials)(SOR VOL II P.164)
200mm DI S/S K7 pipe
Lowering HDPE pipes and specials to trench and laying to proper grade and alignment and as directed by the TWAD Officers. (SOR VOL II P.171)
90mm HDPE PN 6
Jointing HDPE Pipes and Specials by butt fusion welding / electro fusion welding joints using fusion equipment as per ISO 21307-2011 and as per IS 7634 (part-2) : 2012 including cost of hire charges for butt fusion equipment power supply arrangements etc., complete as per directed by TWAD Board Officers. (SOR VOL II P.184)
Refiling with excavated sand or other loose soil complying with standerd specification in layers of 15 cm thick well rammed and consolidated after pipes and specials are laid and tested. (SOR VOL II P.192)
200mm DI S/S K7 pipe
90mm HDPE PN 6
Pumpsets
Carrying out the following repair works occuring during the maintenance period in the Electrical, Mechanical and Elctro-mechanical items to bring back the scheme / components into normal running conditition as per standard specification including all labour charges, cost of materials and all incidental charges within the stipulated time limit etc., complete as specified in Clause 2.8 of General conditions of Contract Part II etc as directed by TWAD Board officers
Attending the Rewinding, Repair and Renewal works in various capacity Open Well Submersible Pumpsets
Removing the Submersible pumpset by using tripod set after disconnecting the power supply cable and delivery pipe line fittings
7.5HP -OWS
10HP -OWS
30HP -OWS
40HP -OWS
Transporting the pumpset from Pump House to work shop.
7.5HP -OWS
10HP -OWS
30HP -OWS
40HP -OWS
Rewinding the submersible motor using best quality winding wire including cost of wire, Sleeve, other insulating and fibre class materials after deducting the cost of old materials.
7.5HP -OWS
10HP -OWS
30HP -OWS
40HP -OWS
Reconditioning the worn-out shaft and fittings, impeller and Gun Metal/ SS Bushes including cost of lath work & labour charges etc.,
7.5HP -OWS
10HP -OWS
30HP -OWS
40HP -OWS
Replacement of carbon type thrust bearing and pumpside Gun Metal Bush including cost of labour charges after deducting the cost of old material
7.5HP -OWS
10HP -OWS
30HP -OWS
40HP -OWS
Transporting charges for Submersible pumpset from work shop to Pump House after attending repair works.
7.5HP -OWS
10HP -OWS
30HP -OWS
40HP -OWS
Re-erection of pumpset in the Sump / Well by using tripod set and required Rubber washer and Bolt & Nuts and connecting the power supply cable and delivery pipeline arrangements testing to trial pumping.
7.5HP -OWS
10HP -OWS
30HP -OWS
40HP -OWS
SUPPLY AND DELIVERY OF SERVICE CONNECTION ACCESSORIES L.T. 1100V PVC ALUMINIUM ARMOURED UNDER GROUND CABLE WITH ISI MARK
25 Sq.mm 3.5 Core
35 Sq.mm 3.5 Core
95 Sq.mm 3.5 Core
SUPPLY AND DELIVERY OF L.T. CABLES following size sq mm 3 CORE 1.1 KV GRADE ARMOURED ALUMINIUM CONDUCTOR CROSS LINKED POLY ETHYLENE INSULATED PVC SHEATHED CABLES CONFORMING TO IS 7098 (PART I)/1988 WITH ISI MARKING
25 Sq.mm 3 Core
50 Sq.mm 3 Core
70 Sq.mm 3Core
SUPPLY AND DELIVERY OF PVC INSULATED AND SHEATHED following sq mm 3 CORE FLAT TYPE COPPER CABLE CONFORMING TO IS 694/1989
SUPPLY AND DELIVERY OF 150mm dia Pressure Gauge and Vaccum guage including all accessories as per specification (For Suction and Delivery to be mounted on wall on Teak Wood Board)
Supply, delivey and fixing of MOULDED CASE CIRCUIT BREAKER (MCCB) WITH THERMO MAGNETIC RELEASE - 4 Pole
Range - 63/100A
Range - 125A
Range - 160A
Supply, delivey and fixing of RATE FOR MIXED DI-ELECTRIC CAPACITOR WITH TNEB TEST CERTIFICATE WITH ACCESSORIES INCLUDING BANKING CONFORMIING TO IS 2834.
Supply, delivey and fixing of Electro magnetic contactors of suitable capacity in AC Three Phase rating, conforming to IS/IEC 60947-4-1.
Supply, delivey and fixing of Overload Relays: Directly operated Bimetallic Thermal overload relay which operates in case of overload and also in case of under voltage with manual and auto reset mode.
Supply, delivey and fixing of Preventer – Single Phasing - Electric Motor protection device against single phasing. The device should protect the motor against single phasing, reverse phasing and unbalance supply. The device should be suitable for any auxillary device and have provisions for mounting in panel boards. Operate without need of any auxiliary supply.
Electric Motor protection device against dry running. The device should protect the motor against Dry running. The device should be suitable for any auxillary device and have provisions for mounting in panel boards. Operate without need of any auxiliary supply
Supply, delivey and fixing of FUSE UNITS (ANCHOR /EQUIVALENT)
200 Amps Porcelain fuse unit (500 V)
Supply, delivey and fixing of CHANGE OVER SWITCHES
32 Amps three phase 500 V 4 pole Change over switch
63 Amps three phase 500 V 4 pole Change over switch
Supply, delivey and fixing of PVC INSULATED SINGLE CORE MULTI STRAND FIRE RETARDANT FLEXIBLE COPPER CABLE WITH ISI MARK CONFORMING TO IS
Supply, delivey and fixing of HRC - FUSES - HIGHER END
HRC - 32 Amps
HRC - 63 Amps
Supply and delivery of the following Electrical Works :consumable items at the site of work to carryout the general maintenace works
Voltmeter Digital - Three Phase Class 1-AC
Ammeter Digital - Three Phase Class 1-1A
20W 4 Feet LED Fitting with LED (Higher end)
LED OUTDOOR FITTINGS (LIGHT EMITTING DIODE) LOWER END 25W LED Street Light Fitting with LED
Supply and delivery of the following consumable items for Pump Set repairs at the site of work to carryout the general maintenace works
80mm GM Gate valve
100mm GM Gate valve
R I Sheet
Bolts and Nuts - All sizes
150mm GI pipe
Supply, delivery and fixing of DI D/F Gate sluice/scour valves (soft seated) resilient seated soft sealing Gate Valves(Sluice Valves) with body Bonnet of Ductile cast iron of Grade GGG 40 or equivalent grade, Wedge fully rubber lined with EPDM replaceable spindle nut without gland packing and with 3 O- Ring protection on the shaft and seals of NBR and the valves should be of Vacuum tight and 100% leak proof with face to face dimensions as per BS 5163- 89/ISI 14846-2000/DIN 3202 F4. All the valves should be with electrostatic powder coating both inside and out side with pocket less straight through body passage. All the valves are to be compatible for buried application with pressure rating PN 10/16 and with 5 years warranty.
100mm DI Gate Valve
150mm DI Gate Valve
Manufacture, Supply and Delivery of Tamper proof DI single chamber double orifice triple function (ventilating, admiting & ventilating during operation) air release valve with pressure rating PN 10/16 with body and cover made of Ductile Iron of Grade GGG 40 or GGG 50, conforming to IS 1865 with Food Grade Epoxy Powder coating (EP-P) inside and for outside of colour blue RAL 5005. All internal parts such as float, shell etc., cover bolts, made of Austenitic alloy steel of SS AISI 304/316. The float shall be made of Polytetrafluroethylene/ Austenitic alloy steel of AISI 304/316. Gaskets and seals of EPDM / Neoprene rubber for TWAD Board works anywhere in Tamil Nadu and with 5 years warranty
50mm DI Air Valve
Supply, delivey and fixing of C.I. DOUBLE AIR VALVE AS PER ISI 14845/2000 AND WITH 5 YEARS WARRANTY
50mm CI Air Valve
SUMP CLEANING
Cleaning of all storage points like sumps, elevated reservoirs of various capacities available in this scheme at a frequency of once in two months including scrapping the inner side of compartment completely, scouring / dewatering / desilting using required machineries, materials, labour and all other incidental charges, application of bleaching powder/ solution etc complete.
For 75001 to 100000 lit cap sump
Desilting light or sandysoil or silt from collection well below water level including the charges for special tools & plants and air compressor etc complete
Supply, delivery and application of disinfection dosages as per standard norms / guidelines including cost of all disinfectents (Such as bleaching powder, chlorine cylinder, silver ionization rods, sodium hypochlorite solution, common salt as applicable to this CWSS), labour charges and all incidental charges for disinfection of the water supplied from this CWSS to ensure the portable quality of disinfected water at all delivery points / tail ends, testing of water samples including additional / required / instructed dosage during the period of Flood/ Calamities etc., complete.
Supply delivery of Bleaching Powder as per Relevant IS Specification
WSS TO AAVIN DAIRY CUM POWDER PLANT AT AMMAPALAYAM IN TIRUVANNAMALAI DISTRICT
Operation and Maintenance of the Electro Mechanical installations, equipments, components, pipelines valves and appurtenances, water retaining structures including protecton of all schemee components from damages/ theft undertaking legal actions for such untoward incidents, preventive maintenance, disinfection and deliverance of water as per quality standards and supply of earmarked quantity of water to the beneficiaries as per Annexure .........., carrying out the O&M as per standard operating procedures, Acts and rules in force and as directed by TWAD Board Oficers and excluding cost towards attending leak, burst repair and replacement works to electro mechanical installations consumables for disinfection of water, cleaning of all water retaining structure, electricity .
Repair & Renewals and Leak & Bursts :
Attending Leaks/Bursts in the DI pipelines of this CWSS for the following items, as per the standard procedure including earthwork excavation, dewatering, removing, relaying, jointing, civil works, cost of materials and all incidental charges, etc complete within the stipulated time limit as specified in Clause 2.6.4 of General conditions of Contract
DI Pipes_Minor Leak
150mm DI pipes - Minor leak
DI Pipes_Major Leak
150mm DI pipes - Major leak
Labour for cutting open B.T. Roads (or) Maccadam road for laying water mains - 15 cm thick (SOR VOL II P.195)
For all size Pumping mains
Road Restoration with PCC 1:2:4 using 20 mm HBGS for the Concrete Road cut Portion after the pipes are laid, joined and tested complete and as directed by TWAD Board Officers - 15 cm thick
For all size Pumping mains
Supply and conveying of DI DUCTILE IRON SOCKET/SPIGOT PIPES FOR CLASS K7 AS PER IS 8329/2000 for standard length including cost of pipe,testing charges at factory ,labour charges for loading,unloading and stacking at site etc.(SOR VOL II P.35)
150mm DI S/S K7 pipe
Earth work excavation and depositing on bank with initial lead of 10 m and initial lift of 2m in narrow trenches for laying of pipes for water supply in the following types of soil
Hard stiff clay, stiff black cotton, hard red earth, shales, murrum gravel, stoney earth and earth mixed with small size boulders and hard gravelly soil. (SOR VOL II P.192)
150mm DI S/S K7 pipe
Lowering of D.I Pipes and specials in the trenches and laying to proper grade and alignment and as directed by the TWAD Officers.
150mm DI S/S K7 pipe
Jointing C.I/ D.I-S/S pipes and specials with rubber gaskets (tyton joint) including cost of lubricants. (including cost of jointing materials)(SOR VOL II P.164)
150mm DI S/S K7 pipe
Refiling with excavated sand or other loose soil complying with standerd specification in layers of 15 cm thick well rammed and consolidated after pipes and specials are laid and tested. (SOR VOL II P.192)
150mm DI S/S K7 pipe
Pumpsets
Carrying out the following repair works occuring during the maintenance period in the Electrical, Mechanical and Elctro-mechanical items to bring back the scheme / components into normal running conditition as per standard specification including all labour charges, cost of materials and all incidental charges within the stipulated time limit etc., complete as specified in Clause 2.8 of General conditions of Contract Part II etc as directed by TWAD Board officers
Attending the Rewinding, Repair and Renewal works in various capacity Open Well Submersible Pumpsets
Removing the Submersible pumpset by using tripod set after disconnecting the power supply cable and delivery pipe line fittings
5HP -OWS
25HP -OWS
Transporting the pumpset from Pump House to work shop.
5HP -OWS
25HP -OWS
Rewinding the submersible motor using best quality winding wire including cost of wire, Sleeve, other insulating and fibre class materials after deducting the cost of old materials.
5HP -OWS
25HP -OWS
Reconditioning the worn-out shaft and fittings, impeller and Gun Metal/ SS Bushes including cost of lath work & labour charges etc.,
5HP -OWS
25HP -OWS
Replacement of carbon type thrust bearing and pumpside Gun Metal Bush including cost of labour charges after deducting the cost of old material
5HP -OWS
25HP -OWS
Transporting charges for Submersible pumpset from work shop to Pump House after attending repair works.
5HP -OWS
25HP -OWS
Re-erection of pumpset in the Sump / Well by using tripod set and required Rubber washer and Bolt & Nuts and connecting the power supply cable and delivery pipeline arrangements testing to trial pumping.
5HP -OWS
25HP -OWS
SUPPLY AND DELIVERY OF SERVICE CONNECTION ACCESSORIES L.T. 1100V PVC ALUMINIUM ARMOURED UNDER GROUND CABLE WITH ISI MARK
25 Sq.mm 3.5 Core
50 Sq.mm 3.5 Core
SUPPLY AND DELIVERY OF L.T. CABLES following size sq mm 3 CORE 1.1 KV GRADE ARMOURED ALUMINIUM CONDUCTOR CROSS LINKED POLY ETHYLENE INSULATED PVC SHEATHED CABLES CONFORMING TO IS 7098 (PART I)/1988 WITH ISI MARKING
25 Sq.mm 3 Core
SUPPLY AND DELIVERY OF PVC INSULATED AND SHEATHED following sq mm 3 CORE FLAT TYPE COPPER CABLE CONFORMING TO IS 694/1989
SUPPLY AND DELIVERY OF 150mm dia Pressure Gauge and Vaccum guage including all accessories as per specification (For Suction and Delivery to be mounted on wall on Teak Wood Board)
Supply, delivey and fixing of MOULDED CASE CIRCUIT BREAKER (MCCB) WITH THERMO MAGNETIC RELEASE - 4 Pole
Range - 63/100A
Supply, delivey and fixing of RATE FOR MIXED DI-ELECTRIC CAPACITOR WITH TNEB TEST CERTIFICATE WITH ACCESSORIES INCLUDING BANKING CONFORMIING TO IS 2834.
Supply, delivey and fixing of Electro magnetic contactors of suitable capacity in AC Three Phase rating, conforming to IS/IEC 60947-4-1.
Supply, delivey and fixing of Overload Relays: Directly operated Bimetallic Thermal overload relay which operates in case of overload and also in case of under voltage with manual and auto reset mode.
Supply, delivey and fixing of Preventer – Single Phasing - Electric Motor protection device against single phasing. The device should protect the motor against single phasing, reverse phasing and unbalance supply. The device should be suitable for any auxillary device and have provisions for mounting in panel boards. Operate without need of any auxiliary supply.
Electric Motor protection device against dry running. The device should protect the motor against Dry running. The device should be suitable for any auxillary device and have provisions for mounting in panel boards. Operate without need of any auxiliary supply
Supply, delivey and fixing of FUSE UNITS (ANCHOR /EQUIVALENT)
200 Amps Porcelain fuse unit (500 V)
Supply, delivey and fixing of CHANGE OVER SWITCHES
32 Amps three phase 500 V 4 pole Change over switch
100 Amps three phase 500 V 4 pole Change over switch
Supply, delivey and fixing of PVC INSULATED SINGLE CORE MULTI STRAND FIRE RETARDANT FLEXIBLE COPPER CABLE WITH ISI MARK CONFORMING TO IS
Supply, delivey and fixing of HRC - FUSES - HIGHER END
HRC - 32 Amps
HRC - 125 Amps
Supply and delivery of the following Electrical Works :consumable items at the site of work to carryout the general maintenace works
Voltmeter Digital - Three Phase Class 1-AC
Ammeter Digital - Three Phase Class 1-1A
20W 4 Feet LED Fitting with LED (Higher end)
LED OUTDOOR FITTINGS (LIGHT EMITTING DIODE) LOWER END 25W LED Street Light Fitting with LED
Supply and delivery of the following consumable items for Pump Set repairs at the site of work to carryout the general maintenace works
100mm GM Gate valve
R I Sheet
Bolts and Nuts - All sizes
125mm GI pipe
150mm GI pipe
Supply, delivery and fixing of DI D/F Gate sluice/scour valves (soft seated) resilient seated soft sealing Gate Valves(Sluice Valves) with body Bonnet of Ductile cast iron of Grade GGG 40 or equivalent grade, Wedge fully rubber lined with EPDM replaceable spindle nut without gland packing and with 3 O- Ring protection on the shaft and seals of NBR and the valves should be of Vacuum tight and 100% leak proof with face to face dimensions as per BS 5163- 89/ISI 14846-2000/DIN 3202 F4. All the valves should be with electrostatic powder coating both inside and out side with pocket less straight through body passage. All the valves are to be compatible for buried application with pressure rating PN 10/16 and with 5 years warranty.
100mm DI Gate Valve
150mm DI Gate Valve
Manufacture, Supply and Delivery of Tamper proof DI single chamber double orifice triple function (ventilating, admiting & ventilating during operation) air release valve with pressure rating PN 10/16 with body and cover made of Ductile Iron of Grade GGG 40 or GGG 50, conforming to IS 1865 with Food Grade Epoxy Powder coating (EP-P) inside and for outside of colour blue RAL 5005. All internal parts such as float, shell etc., cover bolts, made of Austenitic alloy steel of SS AISI 304/316. The float shall be made of Polytetrafluroethylene/ Austenitic alloy steel of AISI 304/316. Gaskets and seals of EPDM / Neoprene rubber for TWAD Board works anywhere in Tamil Nadu and with 5 years warranty
50mm DI Air Valve
Supply, delivey and fixing of C.I. DOUBLE AIR VALVE AS PER ISI 14845/2000 AND WITH 5 YEARS WARRANTY
50mm CI Air Valve
SUMP CLEANING
Cleaning of all storage points like sumps, elevated reservoirs of various capacities available in this scheme at a frequency of once in two months including scrapping the inner side of compartment completely, scouring / dewatering / desilting using required machineries, materials, labour and all other incidental charges, application of bleaching powder/ solution etc complete.
For 175001 to 200000 lit cap sump
Desilting light or sandysoil or silt from collection well below water level including the charges for special tools & plants and air compressor etc complete
Supply, delivery and application of disinfection dosages as per standard norms / guidelines including cost of all disinfectents (Such as bleaching powder, chlorine cylinder, silver ionization rods, sodium hypochlorite solution, common salt as applicable to this CWSS), labour charges and all incidental charges for disinfection of the water supplied from this CWSS to ensure the portable quality of disinfected water at all delivery points / tail ends, testing of water samples including additional / required / instructed dosage during the period of Flood/ Calamities etc., complete.
Supply delivery of Bleaching Powder as per Relevant IS Specification
Supply delivery of Liquid Chlorine as per Relevant IS Specification
Supply delivery of Alum as per Relevant IS Specification
COMBINED WATER SUPPLY SCHEME TO NALLUR AND 74 OTHER HABITATIONS IN VANDAVASI UNION OF TIRUVANNAMALAI DISTRICT
Operation and Maintenance of the Electro Mechanical installations, equipments, components, pipelines valves and appurtenances, water retaining structures including protecton of all schemee components from damages/ theft undertaking legal actions for such untoward incidents, preventive maintenance, disinfection and deliverance of water as per quality standards and supply of earmarked quantity of water to the beneficiaries as per Annexure .........., carrying out the O&M as per standard operating procedures, Acts and rules in force and as directed by TWAD Board Oficers and excluding cost towards attending leak, burst repair and replacement works to electro mechanical installations consumables for disinfection of water, cleaning of all water retaining structure, electricity .
Repair & Renewals and Leak & Bursts :
Attending Leaks in the PVC pipelines of this CWSS for the following items, as per the standard procedure including earthwork excavation, dewatering, removing, relaying, jointing, civil works, cost of materials and all other incidental charges, etc complete within the stipulated time limit as directed by the TWAD Board officers.
PVC 4 KSC Pipes_Minor Leak
63mm OD PVC 4 KSC pipes_Minor Leak
75mm OD PVC 4 KSC pipes_Minor Leak
90mm OD PVC 4 KSC pipes_Minor Leak
110mm OD PVC 4 KSC pipes_Minor Leak
140mm OD PVC 4 KSC pipes_Minor Leak
160mm OD PVC 4 KSC pipes_Minor Leak
PVC 4 KSC Pipes_Major Leak
63mm OD PVC 4 KSC pipes_Major Leak
75mm OD PVC 4 KSC pipes_Major Leak
90mm OD PVC 4 KSC pipes_Major Leak
110mm OD PVC 4 KSC pipes_Major Leak
140mm OD PVC 4 KSC pipes_Major Leak
160mm OD PVC 4 KSC pipes_Major Leak
Attending Leaks/Bursts in the HDPE pipelines of this CWSS for the following items, as per the standard procedure including earthwork excavation, dewatering, removing, relaying, jointing by Electro fusion/butt Joint, civil works, cost of materials and all other incidental charges, etc complete within the stipulated time limit as directed by the TWAD Board officers.
HDPE PN 6 Pipes_Minor Leaks
75mm HDPE PN 6 pipes_Minor Leak
90mm HDPE PN 6 pipes_Minor Leak
140mm HDPE PN 6 pipes_Minor Leak
160mm HDPE PN 6 pipes_Minor Leak
HDPE PN 6 Pipes_Major Leaks
75mm HDPE PN 6 pipes_Major Leak
90mm HDPE PN 6 pipes_Major Leak
140mm HDPE PN 6 pipes_Major Leak
160mm HDPE PN 6 pipes_Major Leak
Attending leaks and bursts in GI pipes of various sizes including Supply and delivery of following G I PIPES (MEDIUM) AS PER IS 1239/PART I/2004 and Lowering GI pipes and specials in the trenches and laying to proper grade and alignment, jointing with GI Specials and as directed by the TWAD Officers
80mm GI Pipe leak above GL
100mm GI Pipe leak above GL
125mm GI Pipe leak above GL
150mm GI Pipe leak above GL
Attending joint (Collar) Leaks in the AC pipelines of this CWSS for the following items, as per the standard procedure including earthwork excavation, dewatering, removing, relaying, jointing, civil works, cost of materials and all incidental charges, etc complete within the stipulated time limit as specified in Clause 2.6.4 of General conditions of Contract
AC Pipe_Collar Leak
150mm AC_Collar Leak
250mm AC_Collar Leak
AC Pipe_Minor Leak centre crack
150mm AC Pipe_MS Cut Barrel
250mm AC Pipe_MS Cut Barrel
Attending joint Leaks and center crack in the PSC pipelines of this CWSS for the following items, as per the standard procedure including earthwork excavation, dewatering, removing, relaying, jointing, civil works, cost of materials and all incidental charges, etc complete within the stipulated time limit as specified in Clause 2.6.4 of General conditions of Contract
350mm PSC Pipe Collar Leak
350mm PSC Pipe Centre Crack MS Cut Barrel
Labour for cutting open B.T. Roads (or) Maccadam road for laying water mains - 15 cm thick (SOR VOL II P.195)
For all size Pumping mains
Road Restoration with PCC 1:2:4 using 20 mm HBGS for the Concrete Road cut Portion after the pipes are laid, joined and tested complete and as directed by TWAD Board Officers - 15 cm thick
For all size Pumping mains
MATERIALS
Supply and delivery of following sizes of HDPE PIPES - PE 100 AS PER IS 4984/2016 (Pre-Compounded Resin) inclusive of transportation charges to stockyard excluding unloading anywhere in Tamilnadu etc, complete and as directed by the TWAD Board officers. (SOR VOL II P.14)
160mm HDPE PN 6
140mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
75mm HDPE PN 6
63mm HDPE PN 6
CIVIL WORKS
Earth work excavation and depositing on bank with initial lead of 10 m and initial lift of 2m in narrow trenches for laying of pipes for water supply in the following types of soil
Hard stiff clay, stiff black cotton, hard red earth, shales, murrum gravel, stoney earth and earth mixed with small size boulders and hard gravelly soil. (SOR VOL II P.192)
160mm HDPE PN 6
140mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
75mm HDPE PN 6
63mm HDPE PN 6
Lowering HDPE pipes and specials to trench and laying to proper grade and alignment and as directed by the TWAD Officers. (SOR VOL II P.171)
160mm HDPE PN 6
140mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
75mm HDPE PN 6
63mm HDPE PN 6
Jointing HDPE Pipes and Specials by butt fusion welding / electro fusion welding joints using fusion equipment as per ISO 21307-2011 and as per IS 7634 (part-2) : 2012 including cost of hire charges for butt fusion equipment power supply arrangements etc., complete as per directed by TWAD Board Officers. (SOR VOL II P.184)
160mm HDPE PN 6
140mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
75mm HDPE PN 6
63mm HDPE PN 6
Refiling with excavated sand or other loose soil complying with standerd specification in layers of 15 cm thick well rammed and consolidated after pipes and specials are laid and tested. (SOR VOL II P.192)
160mm HDPE PN 6
140mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
75mm HDPE PN 6
63mm HDPE PN 6
Pumpsets
Carrying out the following repair works occuring during the maintenance period in the Electrical, Mechanical and Elctro-mechanical items to bring back the scheme / components into normal running conditition as per standard specification including all labour charges, cost of materials and all incidental charges within the stipulated time limit etc., complete as specified in Clause 2.8 of General conditions of Contract Part II etc as directed by TWAD Board officers
Attending the Rewinding, Repair and Renewal works in various capacity Open Well Submersible Pumpsets
Removing the Submersible pumpset by using tripod set after disconnecting the power supply cable and delivery pipe line fittings
10HP -OWS
12.50HP -OWS
7.5HP -OWS
Transporting the pumpset from Pump House to work shop.
10HP -OWS
12.50HP -OWS
7.5HP -OWS
Rewinding the submersible motor using best quality winding wire including cost of wire, Sleeve, other insulating and fibre class materials after deducting the cost of old materials.
10HP -OWS
12.50HP -OWS
7.5HP -OWS
Reconditioning the worn-out shaft and fittings, impeller and Gun Metal/ SS Bushes including cost of lath work & labour charges etc.,
10HP -OWS
12.50HP -OWS
7.5HP -OWS
Replacement of carbon type thrust bearing and pumpside Gun Metal Bush including cost of labour charges after deducting the cost of old material
10HP -OWS
12.50HP -OWS
7.5HP -OWS
Transporting charges for Submersible pumpset from work shop to Pump House after attending repair works.
10HP -OWS
12.50HP -OWS
7.5HP -OWS
Re-erection of pumpset in the Sump / Well by using tripod set and required Rubber washer and Bolt & Nuts and connecting the power supply cable and delivery pipeline arrangements testing to trial pumping.
10HP -OWS
12.50HP -OWS
7.5HP -OWS
Attending the Rewinding, Repair and Renewal works in Monoblock Pumpset
5HP_Monoblock
Removing the Monblock Centrifugal Pumpset from the Bed assembly by using contractors tools and materials after disconnecting the power supply cable and delivery pipe line fittings with required dummy plate arrangements.
Transporting the pumpset from the Pumping Station to work shop.
Removing the Burnt winding materials from the stator slots and cleaning the stator and rotor assembly by using contractor tools and materials
Reconditioning the worn-out shaft and fittings, impeller and Rope gland bush including cost of lath work & labour charges etc.,
Rewinding the Monblock Centrifugal Motor using best quality winding wire including cost of wire, Sleeve, other insulating and fibre class materials after deducting the cost of old materials.
Replacement of driven end (No: XXXX) and Non driven end (No:XXXX) Bearings suitable for Monblock Centrifugal Motor including the cost of Bearing and labour charges after deducting the cost of old materials.
Replacement of cooling fan at motor end and Terminal Board for suitable for Monblock Centrifugal Pumpset and labour charges after deducting the cost of old materials.
Transporting charges for Monblock Centrifugal Pumpset from work shop to Pump House after attending repair works.
Re-erection of pumpset in the Sump / Well by using required Rubber washer and Bolt & Nuts and connecting the power supply cable and delivery pipe line arrangements, testing and trial pumping.
7.5HP_Monoblock
Removing the Monblock Centrifugal Pumpset from the Bed assembly by using contractors tools and materials after disconnecting the power supply cable and delivery pipe line fittings with required dummy plate arrangements.
Transporting the pumpset from the Pumping Station to work shop.
Removing the Burnt winding materials from the stator slots and cleaning the stator and rotor assembly by using contractor tools and materials
Reconditioning the worn-out shaft and fittings, impeller and Rope gland bush including cost of lath work & labour charges etc.,
Rewinding the Monblock Centrifugal Motor using best quality winding wire including cost of wire, Sleeve, other insulating and fibre class materials after deducting the cost of old materials.
Replacement of driven end (No: XXXX) and Non driven end (No:XXXX) Bearings suitable for Monblock Centrifugal Motor including the cost of Bearing and labour charges after deducting the cost of old materials.
Replacement of cooling fan at motor end and Terminal Board for suitable for Monblock Centrifugal Pumpset and labour charges after deducting the cost of old materials.
Transporting charges for Monblock Centrifugal Pumpset from work shop to Pump House after attending repair works.
Re-erection of pumpset in the Sump / Well by using required Rubber washer and Bolt & Nuts and connecting the power supply cable and delivery pipe line arrangements, testing and trial pumping.
60HP-HSC_Motor
Charges for removing the motor from bed after disconnection of power supply cable, Earthing line and Coupling arrangements by using contractor tools and materials.
Transportation charges for conveying the motor from the Booster Station to Our work shop including loading and unloading charges.
Labour Charges for removing the two end side cover with fan arrangements and the damaged driven end and non driven end bearings.
Charges for removing the burnt wires from the rotor assembly and cleaning and checking the slots of rotor and labour charges for rewinding of Centrifugal Squirrel Cage Induction Motor after deducting the cost of old materials and including suppy and delivery of Class ‘F’ Insulation Super enameled Copper wire, required for rewinding and Fiber Glass wire, Fiber Glass Sleeves, Class ‘F’ insulation paper, Copper Socket and FG thread required for rewinding of Squirrel Cage Induction Motor
Labour Charges for reconditioning the worn out shaft for driven end and non driven end bearing seating, knurling, bend checking, and etc.,
Supply and delivery of Driven End and Non Driven End bearings suitable for the required Induction Motor
Labour Charges fixing the DE and NDE bearings correctly and neatly with required lubrications by contractors tools & Materials
Transportation charges for conveying the motor from work shop to Pumping Station
Charges for reassembling the motor with bed and pump coupling, alignment checking connecting power supply cable, including required bolt and Nuts and testing trial running etc.,
60HP-HSC_Pump
Charges for removing the motor from bed assembly after dismantling of Coupling arrangements and removing the pump assembly and including the provision of dummy flange arrangements by using contractor tools and materials.
Transportation charges for conveying the Pump assembly from the Pumping Station to work shop including loading and unloading charges.
Labour Charges for removing the impeller by using hydralic system, DE and NDE Bearings
Labour Charges for reconditioning the worn out shaft including welding the shaft to suit the impeller and suit the driven end and non driven end bearing seating, knurling, bend checking and etc.,
Supply, delivery and fixing of Shaft sleeves in Gun metal including machining charges and making key ways after deducting the scrap materials
Balancing of Rotor with impeller both dyanamically and Hydralically by using required dyanamic balancing machine
Supply, delivery and fixing of Gunmetal seal rings for impeller neck including machining charges after deducting the scrap materials
Supply and delivery of Driven End and Non Driven End bearings
Labour Charges fixing the DE and NDE bearings correctly and neatly with required lubrications by contractors tools & Materials
Transportation charges for conveying the Pump assembly from work shop to Pumping Station.
Charges for reassembling the Pump with Motor by using pulley and alignment checking, including required bolt and Nuts and testing trial running etc.,
SUPPLY AND DELIVERY OF SERVICE CONNECTION ACCESSORIES L.T. 1100V PVC ALUMINIUM ARMOURED UNDER GROUND CABLE WITH ISI MARK
25 Sq.mm 3.5 Core
35 Sq.mm 3.5 Core
70 Sq.mm 3.5 Core
95 Sq.mm 3.5 Core
120 Sq.mm 3.5 Core
SUPPLY AND DELIVERY OF L.T. CABLES following size sq mm 3 CORE 1.1 KV GRADE ARMOURED ALUMINIUM CONDUCTOR CROSS LINKED POLY ETHYLENE INSULATED PVC SHEATHED CABLES CONFORMING TO IS 7098 (PART I)/1988 WITH ISI MARKING
50 Sq.mm 3 Core
70 Sq.mm 3Core
SUPPLY AND DELIVERY OF PVC INSULATED AND SHEATHED following sq mm 3 CORE FLAT TYPE COPPER CABLE CONFORMING TO IS 694/1989
SUPPLY AND DELIVERY OF 150mm dia Pressure Gauge and Vaccum guage including all accessories as per specification (For Suction and Delivery to be mounted on wall on Teak Wood Board)
Supply, delivey and fixing of MOULDED CASE CIRCUIT BREAKER (MCCB) WITH THERMO MAGNETIC RELEASE - 4 Pole
Range - 63/100A
Range - 125A
Range - 160A
Range - 250A
Supply, delivey and fixing of RATE FOR MIXED DI-ELECTRIC CAPACITOR WITH TNEB TEST CERTIFICATE WITH ACCESSORIES INCLUDING BANKING CONFORMIING TO IS 2834.
Supply, delivey and fixing of Electro magnetic contactors of suitable capacity in AC Three Phase rating, conforming to IS/IEC 60947-4-1.
Supply, delivey and fixing of Overload Relays: Directly operated Bimetallic Thermal overload relay which operates in case of overload and also in case of under voltage with manual and auto reset mode.
Supply, delivey and fixing of Preventer – Single Phasing - Electric Motor protection device against single phasing. The device should protect the motor against single phasing, reverse phasing and unbalance supply. The device should be suitable for any auxillary device and have provisions for mounting in panel boards. Operate without need of any auxiliary supply.
Electric Motor protection device against dry running. The device should protect the motor against Dry running. The device should be suitable for any auxillary device and have provisions for mounting in panel boards. Operate without need of any auxiliary supply
Supply, delivey and fixing of FUSE UNITS (ANCHOR /EQUIVALENT)
63 Amps Porcelain fuse unit (500 V)
100 Amps Porcelain fuse unit (500 V)
200 Amps Porcelain fuse unit (500 V)
Supply, delivey and fixing of CHANGE OVER SWITCHES
100 Amps three phase 500 V 4 pole Change over switch
200 Amps three phase 500 V 4 pole Change over switch
250 Amps three phase 500 V 4 pole Change over switch
Supply, delivey and fixing of PVC INSULATED SINGLE CORE MULTI STRAND FIRE RETARDANT FLEXIBLE COPPER CABLE WITH ISI MARK CONFORMING TO IS
Supply, delivey and fixing of HRC - FUSES - HIGHER END
HRC - 16 Amps
HRC - 32 Amps
HRC - 63 Amps
HRC - 125 Amps
HRC - 200 Amps
HRC - 250 Amps
Supply and delivery of the following Electrical Works :consumable items at the site of work to carryout the general maintenace works
Voltmeter Digital - Three Phase Class 1-AC
Ammeter Digital - Three Phase Class 1-1A
20W 4 Feet LED Fitting with LED (Higher end)
LED OUTDOOR FITTINGS (LIGHT EMITTING DIODE) LOWER END 25W LED Street Light Fitting with LED
Supply and delivery of the following consumable items for Pump Set repairs at the site of work to carryout the general maintenace works
50mm GM Gate valve
80mm GM Gate valve
R I Sheet
Bolts and Nuts - All sizes
50mm GI Pipe
80mm GI Pipe
100mm GI pipe
Supply, delivery and fixing of DI D/F Gate sluice/scour valves (soft seated) resilient seated soft sealing Gate Valves(Sluice Valves) with body Bonnet of Ductile cast iron of Grade GGG 40 or equivalent grade, Wedge fully rubber lined with EPDM replaceable spindle nut without gland packing and with 3 O- Ring protection on the shaft and seals of NBR and the valves should be of Vacuum tight and 100% leak proof with face to face dimensions as per BS 5163- 89/ISI 14846-2000/DIN 3202 F4. All the valves should be with electrostatic powder coating both inside and out side with pocket less straight through body passage. All the valves are to be compatible for buried application with pressure rating PN 10/16 and with 5 years warranty.
150mm DI Gate Valve
200mm DI Gate Valve
Supply, delivey and fixing of C.I. DOUBLE AIR VALVE AS PER ISI 14845/2000 AND WITH 5 YEARS WARRANTY
50mm CI Air Valve
80mm CI Air Valve
SUMP CLEANING
Cleaning of all storage points like sumps, elevated reservoirs of various capacities available in this scheme at a frequency of once in two months including scrapping the inner side of compartment completely, scouring / dewatering / desilting using required machineries, materials, labour and all other incidental charges, application of bleaching powder/ solution etc complete.
For 75001 to 100000 lit cap sump
For 100001 to 125000 lit cap sump
For 125001 to 150000 lit cap sump
For 175001 to 200000 lit cap sump
Desilting light or sandysoil or silt from collection well below water level including the charges for special tools & plants and air compressor etc complete
Bleaching powder of 34% concentration as per standard specification.
COMBINED WATER SUPPLY SCHEME TO DESUR-THELLAR AND 87 OTHER HABITATIONS IN ANAKKAVUR, PERNAMALLUR AND THELLAR UNION IN TIRUVANNAMALAI DISTRICT
Operation and Maintenance of the Electro Mechanical installations, equipments, components, pipelines valves and appurtenances, water retaining structures including protecton of all schemee components from damages/ theft undertaking legal actions for such untoward incidents, preventive maintenance, disinfection and deliverance of water as per quality standards and supply of earmarked quantity of water to the beneficiaries as per Annexure .........., carrying out the O&M as per standard operating procedures, Acts and rules in force and as directed by TWAD Board Oficers and excluding cost towards attending leak, burst repair and replacement works to electro mechanical installations consumables for disinfection of water, cleaning of all water retaining structure, electricity .
Repair & Renewals and Leak & Bursts :
Attending Leaks in the PVC pipelines of this CWSS for the following items, as per the standard procedure including earthwork excavation, dewatering, removing, relaying, jointing, civil works, cost of materials and all other incidental charges, etc complete within the stipulated time limit as directed by the TWAD Board officers.
PVC 4 KSC Pipes_Minor Leak
63mm OD PVC 4 KSC pipes_Minor Leak
75mm OD PVC 4 KSC pipes_Minor Leak
90mm OD PVC 4 KSC pipes_Minor Leak
110mm OD PVC 4 KSC pipes_Minor Leak
PVC 4 KSC Pipes_Major Leak
63mm OD PVC 4 KSC pipes_Major Leak
75mm OD PVC 4 KSC pipes_Major Leak
90mm OD PVC 4 KSC pipes_Major Leak
110mm OD PVC 4 KSC pipes_Major Leak
Attending Leaks/Bursts in the HDPE pipelines of this CWSS for the following items, as per the standard procedure including earthwork excavation, dewatering, removing, relaying, jointing by Electro fusion/butt Joint, civil works, cost of materials and all other incidental charges, etc complete within the stipulated time limit as directed by the TWAD Board officers.
HDPE PN 6 Pipes_Minor Leaks
63mm HDPE PN 6 pipes_Minor Leak
75mm HDPE PN 6 pipes_Minor Leak
125mm HDPE PN 6 pipes_Minor Leak
160mm HDPE PN 6 pipes_Minor Leak
HDPE PN 6 Pipes_Major Leaks
63mm HDPE PN 6 pipes_Major Leak
75mm HDPE PN 6 pipes_Major Leak
125mm HDPE PN 6 pipes_Major Leak
160mm HDPE PN 6 pipes_Major Leak
Attending leaks and bursts in GI pipes of various sizes including Supply and delivery of following G I PIPES (MEDIUM) AS PER IS 1239/PART I/2004 and Lowering GI pipes and specials in the trenches and laying to proper grade and alignment, jointing with GI Specials and as directed by the TWAD Officers
50mm GI Pipe leak above GL
65mm GI Pipe leak above GL
80mm GI Pipe leak above GL
100mm GI Pipe leak above GL
125mm GI Pipe leak above GL
Attending joint (Collar) Leaks in the AC pipelines of this CWSS for the following items, as per the standard procedure including earthwork excavation, dewatering, removing, relaying, jointing, civil works, cost of materials and all incidental charges, etc complete within the stipulated time limit as specified in Clause 2.6.4 of General conditions of Contract
AC Pipe_Collar Leak
150mm AC_Collar Leak
AC Pipe_Minor Leak centre crack
150mm AC Pipe_MS Cut Barrel
Attending Leaks/Bursts in the DI pipelines of this CWSS for the following items, as per the standard procedure including earthwork excavation, dewatering, removing, relaying, jointing, civil works, cost of materials and all incidental charges, etc complete within the stipulated time limit as specified in Clause 2.6.4 of General conditions of Contract
DI Pipes_Minor Leak
100mm DI pipes - Minor leak
150mm DI pipes - Minor leak
200mm DI pipes - Minor leak
250mm DI pipes - Minor leak
300mm DI pipes - Minor leak
DI Pipes_Major Leak
100mm DI pipes - Major leak
150mm DI pipes - Major leak
200mm DI pipes - Major leak
Labour for cutting open B.T. Roads (or) Maccadam road for laying water mains - 15 cm thick (SOR VOL II P.195)
For all size Pumping mains
Road Restoration with PCC 1:2:4 using 20 mm HBGS for the Concrete Road cut Portion after the pipes are laid, joined and tested complete and as directed by TWAD Board Officers - 15 cm thick
For all size Pumping mains
MATERIALS
Supply and delivery of following sizes of HDPE PIPES - PE 100 AS PER IS 4984/2016 (Pre-Compounded Resin) inclusive of transportation charges to stockyard excluding unloading anywhere in Tamilnadu etc, complete and as directed by the TWAD Board officers. (SOR VOL II P.14)
160mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
75mm HDPE PN 6
63mm HDPE PN 6
CIVIL WORKS
Earth work excavation and depositing on bank with initial lead of 10 m and initial lift of 2m in narrow trenches for laying of pipes for water supply in the following types of soil
Hard stiff clay, stiff black cotton, hard red earth, shales, murrum gravel, stoney earth and earth mixed with small size boulders and hard gravelly soil. (SOR VOL II P.192)
160mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
75mm HDPE PN 6
63mm HDPE PN 6
Lowering HDPE pipes and specials to trench and laying to proper grade and alignment and as directed by the TWAD Officers. (SOR VOL II P.171)
160mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
75mm HDPE PN 6
63mm HDPE PN 6
Jointing HDPE Pipes and Specials by butt fusion welding / electro fusion welding joints using fusion equipment as per ISO 21307-2011 and as per IS 7634 (part-2) : 2012 including cost of hire charges for butt fusion equipment power supply arrangements etc., complete as per directed by TWAD Board Officers. (SOR VOL II P.184)
160mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
75mm HDPE PN 6
63mm HDPE PN 6
Refiling with excavated sand or other loose soil complying with standerd specification in layers of 15 cm thick well rammed and consolidated after pipes and specials are laid and tested. (SOR VOL II P.192)
160mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
75mm HDPE PN 6
63mm HDPE PN 6
Pumpsets
Carrying out the following repair works occuring during the maintenance period in the Electrical, Mechanical and Elctro-mechanical items to bring back the scheme / components into normal running conditition as per standard specification including all labour charges, cost of materials and all incidental charges within the stipulated time limit etc., complete as specified in Clause 2.8 of General conditions of Contract Part II etc as directed by TWAD Board officers
Attending the Rewinding, Repair and Renewal works in various capacity Open Well Submersible Pumpsets
Removing the Submersible pumpset by using tripod set after disconnecting the power supply cable and delivery pipe line fittings
3HP -OWS
5HP -OWS
7.5HP -OWS
10HP -OWS
15HP -OWS
30HP -OWS
Transporting the pumpset from Pump House to work shop.
3HP -OWS
5HP -OWS
7.5HP -OWS
10HP -OWS
15HP -OWS
30HP -OWS
Rewinding the submersible motor using best quality winding wire including cost of wire, Sleeve, other insulating and fibre class materials after deducting the cost of old materials.
3HP -OWS
5HP -OWS
7.5HP -OWS
10HP -OWS
15HP -OWS
30HP -OWS
Reconditioning the worn-out shaft and fittings, impeller and Gun Metal/ SS Bushes including cost of lath work & labour charges etc.,
3HP -OWS
5HP -OWS
7.5HP -OWS
10HP -OWS
15HP -OWS
30HP -OWS
Replacement of carbon type thrust bearing and pumpside Gun Metal Bush including cost of labour charges after deducting the cost of old material
3HP -OWS
5HP -OWS
7.5HP -OWS
10HP -OWS
15HP -OWS
30HP -OWS
Transporting charges for Submersible pumpset from work shop to Pump House after attending repair works.
3HP -OWS
5HP -OWS
7.5HP -OWS
10HP -OWS
15HP -OWS
30HP -OWS
Re-erection of pumpset in the Sump / Well by using tripod set and required Rubber washer and Bolt & Nuts and connecting the power supply cable and delivery pipeline arrangements testing to trial pumping.
3HP -OWS
5HP -OWS
7.5HP -OWS
10HP -OWS
15HP -OWS
30HP -OWS
75HP -HSC_Motor
Charges for removing the motor from bed after disconnection of power supply cable, Earthing line and Coupling arrangements by using contractor tools and materials.
Transportation charges for conveying the motor from the Booster Station to Our work shop including loading and unloading charges.
Labour Charges for removing the two end side cover with fan arrangements and the damaged driven end and non driven end bearings.
Charges for removing the burnt wires from the rotor assembly and cleaning and checking the slots of rotor and labour charges for rewinding of Centrifugal Squirrel Cage Induction Motor after deducting the cost of old materials and including suppy and delivery of Class ‘F’ Insulation Super enameled Copper wire, required for rewinding and Fiber Glass wire, Fiber Glass Sleeves, Class ‘F’ insulation paper, Copper Socket and FG thread required for rewinding of Squirrel Cage Induction Motor
Labour Charges for reconditioning the worn out shaft for driven end and non driven end bearing seating, knurling, bend checking, and etc.,
Supply and delivery of Driven End and Non Driven End bearings suitable for the required Induction Motor
Labour Charges fixing the DE and NDE bearings correctly and neatly with required lubrications by contractors tools & Materials
Transportation charges for conveying the motor from work shop to Pumping Station
Charges for reassembling the motor with bed and pump coupling, alignment checking connecting power supply cable, including required bolt and Nuts and testing trial running etc.,
Attending the Repair and Reconditioning works of various capacities of Horizontal Split Casing Pumpsets
75HP -HSC_Pump
Charges for removing the motor from bed assembly after dismantling of Coupling arrangements and removing the pump assembly and including the provision of dummy flange arrangements by using contractor tools and materials.
Transportation charges for conveying the Pump assembly from the Pumping Station to work shop including loading and unloading charges.
Labour Charges for removing the impeller by using hydralic system, DE and NDE Bearings
Labour Charges for reconditioning the worn out shaft including welding the shaft to suit the impeller and suit the driven end and non driven end bearing seating, knurling, bend checking and etc.,
Supply, delivery and fixing of Shaft sleeves in Gun metal including machining charges and making key ways after deducting the scrap materials
Balancing of Rotor with impeller both dyanamically and Hydralically by using required dyanamic balancing machine
Supply, delivery and fixing of Gunmetal seal rings for impeller neck including machining charges after deducting the scrap materials
Supply and delivery of Driven End and Non Driven End bearings
Labour Charges fixing the DE and NDE bearings correctly and neatly with required lubrications by contractors tools & Materials
Transportation charges for conveying the Pump assembly from work shop to Pumping Station.
Charges for reassembling the Pump with Motor by using pulley and alignment checking, including required bolt and Nuts and testing trial running etc.,
SUPPLY AND DELIVERY OF SERVICE CONNECTION ACCESSORIES L.T. 1100V PVC ALUMINIUM ARMOURED UNDER GROUND CABLE WITH ISI MARK
70 Sq.mm 3.5 Core
95 Sq.mm 3.5 Core
120 Sq.mm 3.5 Core
SUPPLY AND DELIVERY OF L.T. CABLES following size sq mm 3 CORE 1.1 KV GRADE ARMOURED ALUMINIUM CONDUCTOR CROSS LINKED POLY ETHYLENE INSULATED PVC SHEATHED CABLES CONFORMING TO IS 7098 (PART I)/1988 WITH ISI MARKING
25 Sq.mm 3 Core
50 Sq.mm 3 Core
95 Sq.mm 3 Core
SUPPLY AND DELIVERY OF PVC INSULATED AND SHEATHED following sq mm 3 CORE FLAT TYPE COPPER CABLE CONFORMING TO IS 694/1989
SUPPLY AND DELIVERY OF 150mm dia Pressure Gauge and Vaccum guage including all accessories as per specification (For Suction and Delivery to be mounted on wall on Teak Wood Board)
Supply, delivey and fixing of MOULDED CASE CIRCUIT BREAKER (MCCB) WITH THERMO MAGNETIC RELEASE - 4 Pole
Range - 63/100A
Range - 125A
Range - 160A
Supply, delivey and fixing of RATE FOR MIXED DI-ELECTRIC CAPACITOR WITH TNEB TEST CERTIFICATE WITH ACCESSORIES INCLUDING BANKING CONFORMIING TO IS 2834.
Supply, delivey and fixing of Electro magnetic contactors of suitable capacity in AC Three Phase rating, conforming to IS/IEC 60947-4-1.
Supply, delivey and fixing of Overload Relays: Directly operated Bimetallic Thermal overload relay which operates in case of overload and also in case of under voltage with manual and auto reset mode.
Supply, delivey and fixing of Preventer – Single Phasing - Electric Motor protection device against single phasing. The device should protect the motor against single phasing, reverse phasing and unbalance supply. The device should be suitable for any auxillary device and have provisions for mounting in panel boards. Operate without need of any auxiliary supply.
Electric Motor protection device against dry running. The device should protect the motor against Dry running. The device should be suitable for any auxillary device and have provisions for mounting in panel boards. Operate without need of any auxiliary supply
63 Amps Porcelain fuse unit (500 V)
100 Amps Porcelain fuse unit (500 V)
200 Amps Porcelain fuse unit (500 V)
100 Amps three phase 500 V 4 pole Change over switch
200 Amps three phase 500 V 4 pole Change over switch
250 Amps three phase 500 V 4 pole Change over switch
Supply, delivey and fixing of HRC - FUSES - HIGHER END
HRC - 16 Amps
HRC - 32 Amps
HRC - 63 Amps
HRC - 125 Amps
HRC - 200 Amps
HRC - 250 Amps
Supply and delivery of the following Electrical Works :consumable items at the site of work to carryout the general maintenace works
Voltmeter Digital - Three Phase Class 1-AC
Ammeter Digital - Three Phase Class 1-1A
20W 4 Feet LED Fitting with LED (Higher end)
LED OUTDOOR FITTINGS (LIGHT EMITTING DIODE) LOWER END 25W LED Street Light Fitting with LED
Supply and delivery of the following consumable items for Pump Set repairs at the site of work to carryout the general maintenace works
80mm GM Gate valve
100mm GM Gate valve
80mm GI Pipe
100mm GI pipe
Supply, delivery and fixing of DI D/F Gate sluice/scour valves (soft seated) resilient seated soft sealing Gate Valves(Sluice Valves) with body Bonnet of Ductile cast iron of Grade GGG 40 or equivalent grade, Wedge fully rubber lined with EPDM replaceable spindle nut without gland packing and with 3 O- Ring protection on the shaft and seals of NBR and the valves should be of Vacuum tight and 100% leak proof with face to face dimensions as per BS 5163- 89/ISI 14846-2000/DIN 3202 F4. All the valves should be with electrostatic powder coating both inside and out side with pocket less straight through body passage. All the valves are to be compatible for buried application with pressure rating PN 10/16 and with 5 years warranty.
200mm DI Gate Valve
Manufacture, Supply and Delivery of Tamper proof DI single chamber double orifice triple function (ventilating, admiting & ventilating during operation) air release valve with pressure rating PN 10/16 with body and cover made of Ductile Iron of Grade GGG 40 or GGG 50, conforming to IS 1865 with Food Grade Epoxy Powder coating (EP-P) inside and for outside of colour blue RAL 5005. All internal parts such as float, shell etc., cover bolts, made of Austenitic alloy steel of SS AISI 304/316. The float shall be made of Polytetrafluroethylene/ Austenitic alloy steel of AISI 304/316. Gaskets and seals of EPDM / Neoprene rubber for TWAD Board works anywhere in Tamil Nadu and with 5 years warranty
Supply, delivey and fixing of C.I. DOUBLE AIR VALVE AS PER ISI 14845/2000 AND WITH 5 YEARS WARRANTY
50mm CI Air Valve
SUMP CLEANING
Cleaning of all storage points like sumps, elevated reservoirs of various capacities available in this scheme at a frequency of once in two months including scrapping the inner side of compartment completely, scouring / dewatering / desilting using required machineries, materials, labour and all other incidental charges, application of bleaching powder/ solution etc complete.
For 45001 to 60000 lit cap sump
For 175001 to 200000 lit cap sump
For 200001 to 300000 lit cap sump
Desilting light or sandysoil or silt from collection well below water level including the charges for special tools & plants and air compressor etc complete
Bleaching powder of 34% concentration as per standard specification.
COMBINED WATER SUPPLY SCHEME TO KEELKODUNGALORE AND 76 OTHER HABITATIONS IN VANDAVASI UNION OF TIRUVANNAMALAI DISTRICT
Operation and Maintenance of the Electro Mechanical installations, equipments, components, pipelines valves and appurtenances, water retaining structures including protecton of all schemee components from damages/ theft undertaking legal actions for such untoward incidents, preventive maintenance, disinfection and deliverance of water as per quality standards and supply of earmarked quantity of water to the beneficiaries as per Annexure .........., carrying out the O&M as per standard operating procedures, Acts and rules in force and as directed by TWAD Board Oficers and excluding cost towards attending leak, burst repair and replacement works to electro mechanical installations consumables for disinfection of water, cleaning of all water retaining structure, electricity .
Repair & Renewals and Leak & Bursts :
Attending Leaks in the PVC pipelines of this CWSS for the following items, as per the standard procedure including earthwork excavation, dewatering, removing, relaying, jointing, civil works, cost of materials and all other incidental charges, etc complete within the stipulated time limit as directed by the TWAD Board officers.
PVC 4 KSC Pipes_Minor Leak
63mm OD PVC 4 KSC pipes_Minor Leak
75mm OD PVC 4 KSC pipes_Minor Leak
90mm OD PVC 4 KSC pipes_Minor Leak
110mm OD PVC 4 KSC pipes_Minor Leak
140mm OD PVC 4 KSC pipes_Minor Leak
160mm OD PVC 4 KSC pipes_Minor Leak
PVC 4 KSC Pipes_Major Leak
63mm OD PVC 4 KSC pipes_Major Leak
75mm OD PVC 4 KSC pipes_Major Leak
90mm OD PVC 4 KSC pipes_Major Leak
110mm OD PVC 4 KSC pipes_Major Leak
140mm OD PVC 4 KSC pipes_Major Leak
160mm OD PVC 4 KSC pipes_Major Leak
Attending Leaks/Bursts in the HDPE pipelines of this CWSS for the following items, as per the standard procedure including earthwork excavation, dewatering, removing, relaying, jointing by Electro fusion/butt Joint, civil works, cost of materials and all other incidental charges, etc complete within the stipulated time limit as directed by the TWAD Board officers.
HDPE PN 6 Pipes_Minor Leaks
63mm HDPE PN 6 pipes_Minor Leak
75mm HDPE PN 6 pipes_Minor Leak
90mm HDPE PN 6 pipes_Minor Leak
110mm HDPE PN 6 pipes_Minor Leak
140mm HDPE PN 6 pipes_Minor Leak
200mm HDPE PN 6 pipes_Minor Leak
HDPE PN 6 Pipes_Major Leaks
63mm HDPE PN 6 pipes_Major Leak
75mm HDPE PN 6 pipes_Major Leak
90mm HDPE PN 6 pipes_Major Leak
110mm HDPE PN 6 pipes_Major Leak
140mm HDPE PN 6 pipes_Major Leak
200mm HDPE PN 6 pipes_Major Leak
Attending leaks and bursts in GI pipes of various sizes including Supply and delivery of following G I PIPES (MEDIUM) AS PER IS 1239/PART I/2004 and Lowering GI pipes and specials in the trenches and laying to proper grade and alignment, jointing with GI Specials and as directed by the TWAD Officers
80mm GI Pipe leak above GL
100mm GI Pipe leak above GL
125mm GI Pipe leak above GL
150mm GI Pipe leak above GL
Attending joint (Collar) Leaks in the AC pipelines of this CWSS for the following items, as per the standard procedure including earthwork excavation, dewatering, removing, relaying, jointing, civil works, cost of materials and all incidental charges, etc complete within the stipulated time limit as specified in Clause 2.6.4 of General conditions of Contract
AC Pipe_Collar Leak
200mm AC_Collar Leak
AC Pipe_Minor Leak centre crack
200mm AC Pipe_MS Cut Barrel
Labour for cutting open B.T. Roads (or) Maccadam road for laying water mains - 15 cm thick (SOR VOL II P.195)
For all size Pumping mains
Road Restoration with PCC 1:2:4 using 20 mm HBGS for the Concrete Road cut Portion after the pipes are laid, joined and tested complete and as directed by TWAD Board Officers - 15 cm thick
For all size Pumping mains
MATERIALS
Supply and delivery of following sizes of HDPE PIPES - PE 100 AS PER IS 4984/2016 (Pre-Compounded Resin) inclusive of transportation charges to stockyard excluding unloading anywhere in Tamilnadu etc, complete and as directed by the TWAD Board officers. (SOR VOL II P.14)
200mm HDPE PN 6
160mm HDPE PN 6
140mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
75mm HDPE PN 6
63mm HDPE PN 6
CIVIL WORKS
Earth work excavation and depositing on bank with initial lead of 10 m and initial lift of 2m in narrow trenches for laying of pipes for water supply in the following types of soil
Hard stiff clay, stiff black cotton, hard red earth, shales, murrum gravel, stoney earth and earth mixed with small size boulders and hard gravelly soil. (SOR VOL II P.192)
200mm HDPE PN 6
160mm HDPE PN 6
140mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
75mm HDPE PN 6
63mm HDPE PN 6
Lowering HDPE pipes and specials to trench and laying to proper grade and alignment and as directed by the TWAD Officers. (SOR VOL II P.171)
200mm HDPE PN 6
160mm HDPE PN 6
140mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
75mm HDPE PN 6
63mm HDPE PN 6
Jointing HDPE Pipes and Specials by butt fusion welding / electro fusion welding joints using fusion equipment as per ISO 21307-2011 and as per IS 7634 (part-2) : 2012 including cost of hire charges for butt fusion equipment power supply arrangements etc., complete as per directed by TWAD Board Officers. (SOR VOL II P.184)
200mm HDPE PN 6
160mm HDPE PN 6
140mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
75mm HDPE PN 6
63mm HDPE PN 6
Refiling with excavated sand or other loose soil complying with standerd specification in layers of 15 cm thick well rammed and consolidated after pipes and specials are laid and tested. (SOR VOL II P.192)
200mm HDPE PN 6
160mm HDPE PN 6
140mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
75mm HDPE PN 6
63mm HDPE PN 6
Pumpsets
Carrying out the following repair works occuring during the maintenance period in the Electrical, Mechanical and Elctro-mechanical items to bring back the scheme / components into normal running conditition as per standard specification including all labour charges, cost of materials and all incidental charges within the stipulated time limit etc., complete as specified in Clause 2.8 of General conditions of Contract Part II etc as directed by TWAD Board officers
Attending the Rewinding, Repair and Renewal works in various capacity Open Well Submersible Pumpsets
Removing the Submersible pumpset by using tripod set after disconnecting the power supply cable and delivery pipe line fittings
2HP -OWS
3HP -OWS
5HP -OWS
10HP -OWS
12.50HP -OWS
Transporting the pumpset from Pump House to work shop.
2HP -OWS
3HP -OWS
5HP -OWS
10HP -OWS
12.50HP -OWS
Rewinding the submersible motor using best quality winding wire including cost of wire, Sleeve, other insulating and fibre class materials after deducting the cost of old materials.
2HP -OWS
3HP -OWS
5HP -OWS
10HP -OWS
12.50HP -OWS
Reconditioning the worn-out shaft and fittings, impeller and Gun Metal/ SS Bushes including cost of lath work & labour charges etc.,
2HP -OWS
3HP -OWS
5HP -OWS
10HP -OWS
12.50HP -OWS
Replacement of carbon type thrust bearing and pumpside Gun Metal Bush including cost of labour charges after deducting the cost of old material
2HP -OWS
3HP -OWS
5HP -OWS
10HP -OWS
12.50HP -OWS
Transporting charges for Submersible pumpset from work shop to Pump House after attending repair works.
2HP -OWS
3HP -OWS
5HP -OWS
10HP -OWS
12.50HP -OWS
Re-erection of pumpset in the Sump / Well by using tripod set and required Rubber washer and Bolt & Nuts and connecting the power supply cable and delivery pipeline arrangements testing to trial pumping.
2HP -OWS
3HP -OWS
5HP -OWS
10HP -OWS
12.50HP -OWS
SUPPLY AND DELIVERY OF SERVICE CONNECTION ACCESSORIES L.T. 1100V PVC ALUMINIUM ARMOURED UNDER GROUND CABLE WITH ISI MARK
25 Sq.mm 3.5 Core
35 Sq.mm 3.5 Core
50 Sq.mm 3.5 Core
SUPPLY AND DELIVERY OF L.T. CABLES following size sq mm 3 CORE 1.1 KV GRADE ARMOURED ALUMINIUM CONDUCTOR CROSS LINKED POLY ETHYLENE INSULATED PVC SHEATHED CABLES CONFORMING TO IS 7098 (PART I)/1988 WITH ISI MARKING
50 Sq.mm 3 Core
70 Sq.mm 3Core
SUPPLY AND DELIVERY OF PVC INSULATED AND SHEATHED following sq mm 3 CORE FLAT TYPE COPPER CABLE CONFORMING TO IS 694/1989
SUPPLY AND DELIVERY OF 150mm dia Pressure Gauge and Vaccum guage including all accessories as per specification (For Suction and Delivery to be mounted on wall on Teak Wood Board)
Supply, delivey and fixing of MOULDED CASE CIRCUIT BREAKER (MCCB) WITH THERMO MAGNETIC RELEASE - 4 Pole
Range - 63/100A
Supply, delivey and fixing of RATE FOR MIXED DI-ELECTRIC CAPACITOR WITH TNEB TEST CERTIFICATE WITH ACCESSORIES INCLUDING BANKING CONFORMIING TO IS 2834.
Supply, delivey and fixing of Electro magnetic contactors of suitable capacity in AC Three Phase rating, conforming to IS/IEC 60947-4-1.
Supply, delivey and fixing of Overload Relays: Directly operated Bimetallic Thermal overload relay which operates in case of overload and also in case of under voltage with manual and auto reset mode.
Supply, delivey and fixing of Preventer – Single Phasing - Electric Motor protection device against single phasing. The device should protect the motor against single phasing, reverse phasing and unbalance supply. The device should be suitable for any auxillary device and have provisions for mounting in panel boards. Operate without need of any auxiliary supply.
Electric Motor protection device against dry running. The device should protect the motor against Dry running. The device should be suitable for any auxillary device and have provisions for mounting in panel boards. Operate without need of any auxiliary supply
Supply, delivey and fixing of FUSE UNITS (ANCHOR /EQUIVALENT)
63 Amps Porcelain fuse unit (500 V)
100 Amps Porcelain fuse unit (500 V)
200 Amps Porcelain fuse unit (500 V)
Supply, delivey and fixing of CHANGE OVER SWITCHES
32 Amps three phase 500 V 4 pole Change over switch
63 Amps three phase 500 V 4 pole Change over switch
100 Amps three phase 500 V 4 pole Change over switch
Supply, delivey and fixing of PVC INSULATED SINGLE CORE MULTI STRAND FIRE RETARDANT FLEXIBLE COPPER CABLE WITH ISI MARK CONFORMING TO IS
Supply, delivey and fixing of HRC - FUSES - HIGHER END
HRC - 16 Amps
HRC - 32 Amps
HRC - 63 Amps
Supply and delivery of the following Electrical Works :consumable items at the site of work to carryout the general maintenace works
Voltmeter Digital - Three Phase Class 1-AC
Ammeter Digital - Three Phase Class 1-1A
20W 4 Feet LED Fitting with LED (Higher end)
LED OUTDOOR FITTINGS (LIGHT EMITTING DIODE) LOWER END 25W LED Street Light Fitting with LED
Supply and delivery of the following consumable items for Pump Set repairs at the site of work to carryout the general maintenace works
50mm GM Gate valve
80mm GM Gate valve
R I Sheet
Bolts and Nuts - All sizes
50mm GI Pipe
80mm GI Pipe
100mm GI pipe
Supply, delivey and fixing of C.I. DOUBLE AIR VALVE AS PER ISI 14845/2000 AND WITH 5 YEARS WARRANTY
50mm CI Air Valve
SUMP CLEANING
Cleaning of all storage points like sumps, elevated reservoirs of various capacities available in this scheme at a frequency of once in two months including scrapping the inner side of compartment completely, scouring / dewatering / desilting using required machineries, materials, labour and all other incidental charges, application of bleaching powder/ solution etc complete.
For 45001 to 60000 lit cap sump
For 100001 to 125000 lit cap sump
For 125001 to 150000 lit cap sump
For 150001 to 175000 lit cap sump
Desilting light or sandysoil or silt from collection well below water level including the charges for special tools & plants and air compressor etc complete
Bleaching powder of 34% concentration as per standard specification.
COMBINED WATER SUPPLY SCHEME TO ATHI AND 37 OTHER HABITATIONS IN ANAKKAVUR UNION OF TIRUVANNAMALAI DISTRICT
Operation and Maintenance of the Electro Mechanical installations, equipments, components, pipelines valves and appurtenances, water retaining structures including protecton of all schemee components from damages/ theft undertaking legal actions for such untoward incidents, preventive maintenance, disinfection and deliverance of water as per quality standards and supply of earmarked quantity of water to the beneficiaries as per Annexure .........., carrying out the O&M as per standard operating procedures, Acts and rules in force and as directed by TWAD Board Oficers and excluding cost towards attending leak, burst repair and replacement works to electro mechanical installations consumables for disinfection of water, cleaning of all water retaining structure, electricity .
Repair & Renewals and Leak & Bursts :
Attending Leaks in the PVC pipelines of this CWSS for the following items, as per the standard procedure including earthwork excavation, dewatering, removing, relaying, jointing, civil works, cost of materials and all other incidental charges, etc complete within the stipulated time limit as directed by the TWAD Board officers.
PVC 4 KSC Pipes_Minor Leak
63mm OD PVC 4 KSC pipes_Minor Leak
90mm OD PVC 4 KSC pipes_Minor Leak
110mm OD PVC 4 KSC pipes_Minor Leak
140mm OD PVC 4 KSC pipes_Minor Leak
PVC 4 KSC Pipes_Major Leak
63mm OD PVC 4 KSC pipes_Major Leak
90mm OD PVC 4 KSC pipes_Major Leak
110mm OD PVC 4 KSC pipes_Major Leak
140mm OD PVC 4 KSC pipes_Major Leak
Attending Leaks/Bursts in the HDPE pipelines of this CWSS for the following items, as per the standard procedure including earthwork excavation, dewatering, removing, relaying, jointing by Electro fusion/butt Joint, civil works, cost of materials and all other incidental charges, etc complete within the stipulated time limit as directed by the TWAD Board officers.
HDPE PN 6 Pipes_Minor Leaks
63mm HDPE PN 6 pipes_Minor Leak
90mm HDPE PN 6 pipes_Minor Leak
110mm HDPE PN 6 pipes_Minor Leak
125mm HDPE PN 6 pipes_Minor Leak
200mm HDPE PN 6 pipes_Minor Leak
HDPE PN 6 Pipes_Major Leaks
63mm HDPE PN 6 pipes_Major Leak
90mm HDPE PN 6 pipes_Major Leak
110mm HDPE PN 6 pipes_Major Leak
125mm HDPE PN 6 pipes_Major Leak
200mm HDPE PN 6 pipes_Major Leak
Attending leaks and bursts in GI pipes of various sizes including Supply and delivery of following G I PIPES (MEDIUM) AS PER IS 1239/PART I/2004 and Lowering GI pipes and specials in the trenches and laying to proper grade and alignment, jointing with GI Specials and as directed by the TWAD Officers
50mm GI Pipe leak above GL
65mm GI Pipe leak above GL
80mm GI Pipe leak above GL
Attending joint (Collar) Leaks in the AC pipelines of this CWSS for the following items, as per the standard procedure including earthwork excavation, dewatering, removing, relaying, jointing, civil works, cost of materials and all incidental charges, etc complete within the stipulated time limit as specified in Clause 2.6.4 of General conditions of Contract
AC Pipe_Collar Leak
150mm AC_Collar Leak
200mm AC_Collar Leak
AC Pipe_Minor Leak centre crack
150mm AC Pipe_MS Cut Barrel
200mm AC Pipe_MS Cut Barrel
Attending Leaks/Bursts in the DI pipelines of this CWSS for the following items, as per the standard procedure including earthwork excavation, dewatering, removing, relaying, jointing, civil works, cost of materials and all incidental charges, etc complete within the stipulated time limit as specified in Clause 2.6.4 of General conditions of Contract
DI Pipes_Minor Leak
150mm DI pipes - Minor leak
DI Pipes_Major Leak
150mm DI pipes - Major leak
Labour for cutting open B.T. Roads (or) Maccadam road for laying water mains - 15 cm thick (SOR VOL II P.195)
For all size Pumping mains
Road Restoration with PCC 1:2:4 using 20 mm HBGS for the Concrete Road cut Portion after the pipes are laid, joined and tested complete and as directed by TWAD Board Officers - 15 cm thick
For all size Pumping mains
MATERIALS
Supply and delivery of following sizes of HDPE PIPES - PE 100 AS PER IS 4984/2016 (Pre-Compounded Resin) inclusive of transportation charges to stockyard excluding unloading anywhere in Tamilnadu etc, complete and as directed by the TWAD Board officers. (SOR VOL II P.14)
200mm HDPE PN 6
160mm HDPE PN 6
140mm HDPE PN 6
125mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
63mm HDPE PN 6
CIVIL WORKS
Earth work excavation and depositing on bank with initial lead of 10 m and initial lift of 2m in narrow trenches for laying of pipes for water supply in the following types of soil
Hard stiff clay, stiff black cotton, hard red earth, shales, murrum gravel, stoney earth and earth mixed with small size boulders and hard gravelly soil. (SOR VOL II P.192)
200mm HDPE PN 6
160mm HDPE PN 6
140mm HDPE PN 6
140mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
63mm HDPE PN 6
Lowering HDPE pipes and specials to trench and laying to proper grade and alignment and as directed by the TWAD Officers. (SOR VOL II P.171)
200mm HDPE PN 6
160mm HDPE PN 6
140mm HDPE PN 6
125mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
63mm HDPE PN 6
Jointing HDPE Pipes and Specials by butt fusion welding / electro fusion welding joints using fusion equipment as per ISO 21307-2011 and as per IS 7634 (part-2) : 2012 including cost of hire charges for butt fusion equipment power supply arrangements etc., complete as per directed by TWAD Board Officers. (SOR VOL II P.184)
200mm HDPE PN 6
160mm HDPE PN 6
140mm HDPE PN 6
125mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
63mm HDPE PN 6
Refiling with excavated sand or other loose soil complying with standerd specification in layers of 15 cm thick well rammed and consolidated after pipes and specials are laid and tested. (SOR VOL II P.192)
200mm HDPE PN 6
160mm HDPE PN 6
140mm HDPE PN 6
125mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
63mm HDPE PN 6
Pumpsets
Carrying out the following repair works occuring during the maintenance period in the Electrical, Mechanical and Elctro-mechanical items to bring back the scheme / components into normal running conditition as per standard specification including all labour charges, cost of materials and all incidental charges within the stipulated time limit etc., complete as specified in Clause 2.8 of General conditions of Contract Part II etc as directed by TWAD Board officers
Attending the Rewinding, Repair and Renewal works in various capacity Open Well Submersible Pumpsets
Removing the Submersible pumpset by using tripod set after disconnecting the power supply cable and delivery pipe line fittings
3HP -OWS
7.5HP -OWS
10 HP -OWS
12.50HP -OWS
Transporting the pumpset from Pump House to work shop.
3HP -OWS
7.5HP -OWS
10 HP -OWS
12.50HP -OWS
Rewinding the submersible motor using best quality winding wire including cost of wire, Sleeve, other insulating and fibre class materials after deducting the cost of old materials.
3HP -OWS
7.5HP -OWS
10 HP -OWS
12.50HP -OWS
Reconditioning the worn-out shaft and fittings, impeller and Gun Metal/ SS Bushes including cost of lath work & labour charges etc.,
3HP -OWS
7.5HP -OWS
10 HP -OWS
12.50HP -OWS
Replacement of carbon type thrust bearing and pumpside Gun Metal Bush including cost of labour charges after deducting the cost of old material
3HP -OWS
7.5HP -OWS
10 HP -OWS
12.50HP -OWS
Transporting charges for Submersible pumpset from work shop to Pump House after attending repair works.
3HP -OWS
7.5HP -OWS
10 HP -OWS
12.50HP -OWS
Re-erection of pumpset in the Sump / Well by using tripod set and required Rubber washer and Bolt & Nuts and connecting the power supply cable and delivery pipeline arrangements testing to trial pumping.
3HP -OWS
7.5HP -OWS
10 HP -OWS
12.50HP -OWS
Attending the Rewinding, Repair and Renewal works in Monoblock Pumpset
2HP_Monoblock
Removing the Monblock Centrifugal Pumpset from the Bed assembly by using contractors tools and materials after disconnecting the power supply cable and delivery pipe line fittings with required dummy plate arrangements.
Transporting the pumpset from the Pumping Station to work shop.
Removing the Burnt winding materials from the stator slots and cleaning the stator and rotor assembly by using contractor tools and materials
Reconditioning the worn-out shaft and fittings, impeller and Rope gland bush including cost of lath work & labour charges etc.,
Rewinding the Monblock Centrifugal Motor using best quality winding wire including cost of wire, Sleeve, other insulating and fibre class materials after deducting the cost of old materials.
Replacement of driven end (No: XXXX) and Non driven end (No:XXXX) Bearings suitable for Monblock Centrifugal Motor including the cost of Bearing and labour charges after deducting the cost of old materials.
Replacement of cooling fan at motor end and Terminal Board for suitable for Monblock Centrifugal Pumpset and labour charges after deducting the cost of old materials.
Transporting charges for Monblock Centrifugal Pumpset from work shop to Pump House after attending repair works.
Re-erection of pumpset in the Sump / Well by using required Rubber washer and Bolt & Nuts and connecting the power supply cable and delivery pipe line arrangements, testing and trial pumping.
3HP_Monoblock
Removing the Monblock Centrifugal Pumpset from the Bed assembly by using contractors tools and materials after disconnecting the power supply cable and delivery pipe line fittings with required dummy plate arrangements.
Transporting the pumpset from the Pumping Station to work shop.
Removing the Burnt winding materials from the stator slots and cleaning the stator and rotor assembly by using contractor tools and materials
Reconditioning the worn-out shaft and fittings, impeller and Rope gland bush including cost of lath work & labour charges etc.,
Rewinding the Monblock Centrifugal Motor using best quality winding wire including cost of wire, Sleeve, other insulating and fibre class materials after deducting the cost of old materials.
Replacement of driven end (No: XXXX) and Non driven end (No:XXXX) Bearings suitable for Monblock Centrifugal Motor including the cost of Bearing and labour charges after deducting the cost of old materials.
Replacement of cooling fan at motor end and Terminal Board for suitable for Monblock Centrifugal Pumpset and labour charges after deducting the cost of old materials.
Transporting charges for Monblock Centrifugal Pumpset from work shop to Pump House after attending repair works.
Re-erection of pumpset in the Sump / Well by using required Rubber washer and Bolt & Nuts and connecting the power supply cable and delivery pipe line arrangements, testing and trial pumping.
12.5HP_Monoblock
Removing the Monblock Centrifugal Pumpset from the Bed assembly by using contractors tools and materials after disconnecting the power supply cable and delivery pipe line fittings with required dummy plate arrangements.
Transporting the pumpset from the Pumping Station to work shop.
Removing the Burnt winding materials from the stator slots and cleaning the stator and rotor assembly by using contractor tools and materials
Reconditioning the worn-out shaft and fittings, impeller and Rope gland bush including cost of lath work & labour charges etc.,
Rewinding the Monblock Centrifugal Motor using best quality winding wire including cost of wire, Sleeve, other insulating and fibre class materials after deducting the cost of old materials.
Replacement of driven end (No: XXXX) and Non driven end (No:XXXX) Bearings suitable for Monblock Centrifugal Motor including the cost of Bearing and labour charges after deducting the cost of old materials.
Replacement of cooling fan at motor end and Terminal Board for suitable for Monblock Centrifugal Pumpset and labour charges after deducting the cost of old materials.
Transporting charges for Monblock Centrifugal Pumpset from work shop to Pump House after attending repair works.
Re-erection of pumpset in the Sump / Well by using required Rubber washer and Bolt & Nuts and connecting the power supply cable and delivery pipe line arrangements, testing and trial pumping.
Attending the Rewinding and replacement of bearings of Induction Motor for Horizontal Split Casing Pumpsets
30HP -HSC_Motor
Charges for removing the motor from bed after disconnection of power supply cable, Earthing line and Coupling arrangements by using contractor tools and materials.
Transportation charges for conveying the motor from the Booster Station to Our work shop including loading and unloading charges.
Labour Charges for removing the two end side cover with fan arrangements and the damaged driven end and non driven end bearings.
Charges for removing the burnt wires from the rotor assembly and cleaning and checking the slots of rotor and labour charges for rewinding of Centrifugal Squirrel Cage Induction Motor after deducting the cost of old materials and including suppy and delivery of Class ‘F’ Insulation Super enameled Copper wire, required for rewinding and Fiber Glass wire, Fiber Glass Sleeves, Class ‘F’ insulation paper, Copper Socket and FG thread required for rewinding of Squirrel Cage Induction Motor
Labour Charges for reconditioning the worn out shaft for driven end and non driven end bearing seating, knurling, bend checking, and etc.,
Supply and delivery of Driven End and Non Driven End bearings suitable for the required Induction Motor
Labour Charges fixing the DE and NDE bearings correctly and neatly with required lubrications by contractors tools & Materials
Transportation charges for conveying the motor from work shop to Pumping Station
Charges for reassembling the motor with bed and pump coupling, alignment checking connecting power supply cable, including required bolt and Nuts and testing trial running etc.,
Attending the Repair and Reconditioning works of various capacities of Horizontal Split Casing Pumpsets
30HP -HSC_Pump
Charges for removing the motor from bed assembly after dismantling of Coupling arrangements and removing the pump assembly and including the provision of dummy flange arrangements by using contractor tools and materials.
Transportation charges for conveying the Pump assembly from the Pumping Station to work shop including loading and unloading charges.
Labour Charges for removing the impeller by using hydralic system, DE and NDE Bearings
Labour Charges for reconditioning the worn out shaft including welding the shaft to suit the impeller and suit the driven end and non driven end bearing seating, knurling, bend checking and etc.,
Supply, delivery and fixing of Shaft sleeves in Gun metal including machining charges and making key ways after deducting the scrap materials
Balancing of Rotor with impeller both dyanamically and Hydralically by using required dyanamic balancing machine
Supply, delivery and fixing of Gunmetal seal rings for impeller neck including machining charges after deducting the scrap materials
Supply and delivery of Driven End and Non Driven End bearings
Labour Charges fixing the DE and NDE bearings correctly and neatly with required lubrications by contractors tools & Materials
Transportation charges for conveying the Pump assembly from work shop to Pumping Station.
Charges for reassembling the Pump with Motor by using pulley and alignment checking, including required bolt and Nuts and testing trial running etc.,
SUPPLY AND DELIVERY OF SERVICE CONNECTION ACCESSORIES L.T. 1100V PVC ALUMINIUM ARMOURED UNDER GROUND CABLE WITH ISI MARK
25 Sq.mm 3.5 Core
35 Sq.mm 3.5 Core
50 Sq.mm 3.5 Core
SUPPLY AND DELIVERY OF L.T. CABLES following size sq mm 3 CORE 1.1 KV GRADE ARMOURED ALUMINIUM CONDUCTOR CROSS LINKED POLY ETHYLENE INSULATED PVC SHEATHED CABLES CONFORMING TO IS 7098 (PART I)/1988 WITH ISI MARKING
25 Sq.mm 3 Core
35 Sq.mm 3 Core
70 Sq.mm 3Core
SUPPLY AND DELIVERY OF PVC INSULATED AND SHEATHED following sq mm 3 CORE FLAT TYPE COPPER CABLE CONFORMING TO IS 694/1989
SUPPLY AND DELIVERY OF 150mm dia Pressure Gauge and Vaccum guage including all accessories as per specification (For Suction and Delivery to be mounted on wall on Teak Wood Board)
Supply, delivey and fixing of MOULDED CASE CIRCUIT BREAKER (MCCB) WITH THERMO MAGNETIC RELEASE - 4 Pole
Range - 63/100A
Supply, delivey and fixing of RATE FOR MIXED DI-ELECTRIC CAPACITOR WITH TNEB TEST CERTIFICATE WITH ACCESSORIES INCLUDING BANKING CONFORMIING TO IS 2834.
Supply, delivey and fixing of Electro magnetic contactors of suitable capacity in AC Three Phase rating, conforming to IS/IEC 60947-4-1.
Supply, delivey and fixing of Overload Relays: Directly operated Bimetallic Thermal overload relay which operates in case of overload and also in case of under voltage with manual and auto reset mode.
Supply, delivey and fixing of Preventer – Single Phasing - Electric Motor protection device against single phasing. The device should protect the motor against single phasing, reverse phasing and unbalance supply. The device should be suitable for any auxillary device and have provisions for mounting in panel boards. Operate without need of any auxiliary supply.
Electric Motor protection device against dry running. The device should protect the motor against Dry running. The device should be suitable for any auxillary device and have provisions for mounting in panel boards. Operate without need of any auxiliary supply
Supply, delivey and fixing of FUSE UNITS (ANCHOR /EQUIVALENT)
63 Amps Porcelain fuse unit (500 V)
100 Amps Porcelain fuse unit (500 V)
200 Amps Porcelain fuse unit (500 V)
Supply, delivey and fixing of CHANGE OVER SWITCHES
32 Amps three phase 500 V 4 pole Change over switch
63 Amps three phase 500 V 4 pole Change over switch
100 Amps three phase 500 V 4 pole Change over switch
Supply, delivey and fixing of PVC INSULATED SINGLE CORE MULTI STRAND FIRE RETARDANT FLEXIBLE COPPER CABLE WITH ISI MARK CONFORMING TO IS
Supply, delivey and fixing of HRC - FUSES - HIGHER END
HRC - 16 Amps
HRC - 32 Amps
HRC - 63 Amps
HRC - 125 Amps
HRC - 200 Amps
Supply and delivery of the following Electrical Works :consumable items at the site of work to carryout the general maintenace works
Voltmeter Digital - Three Phase Class 1-AC
Ammeter Digital - Three Phase Class 1-1A
20W 4 Feet LED Fitting with LED (Higher end)
LED OUTDOOR FITTINGS (LIGHT EMITTING DIODE) LOWER END 25W LED Street Light Fitting with LED
Supply and delivery of the following consumable items for Pump Set repairs at the site of work to carryout the general maintenace works
50mm GM Gate valve
80mm GM Gate valve
R I Sheet
Bolts and Nuts - All sizes
50mm GI Pipe
80mm GI Pipe
100mm GI pipe
Supply, delivery and fixing of DI D/F Gate sluice/scour valves (soft seated) resilient seated soft sealing Gate Valves(Sluice Valves) with body Bonnet of Ductile cast iron of Grade GGG 40 or equivalent grade, Wedge fully rubber lined with EPDM replaceable spindle nut without gland packing and with 3 O- Ring protection on the shaft and seals of NBR and the valves should be of Vacuum tight and 100% leak proof with face to face dimensions as per BS 5163- 89/ISI 14846-2000/DIN 3202 F4. All the valves should be with electrostatic powder coating both inside and out side with pocket less straight through body passage. All the valves are to be compatible for buried application with pressure rating PN 10/16 and with 5 years warranty.
150mm DI Gate Valve
Supply, delivey and fixing of C.I. DOUBLE AIR VALVE AS PER ISI 14845/2000 AND WITH 5 YEARS WARRANTY
50mm CI Air Valve
SUMP CLEANING
Cleaning of all storage points like sumps, elevated reservoirs of various capacities available in this scheme at a frequency of once in two months including scrapping the inner side of compartment completely, scouring / dewatering / desilting using required machineries, materials, labour and all other incidental charges, application of bleaching powder/ solution etc complete.
For 5000 to 15000 lit cap sump
For 15001 to 30000 lit cap sump
For 45001 to 60000 lit cap sump
Desilting light or sandysoil or silt from collection well below water level including the charges for special tools & plants and air compressor etc complete
Bleaching powder of 34% concentration as per standard specification.
COMBINED WATER SUPPLY SCHEME TO NAMATHODU AND CHETPET RTP AND 22 OTHER HABITATIONS IN PERANAMALLUR UNION OF TIRUVANNAMALAI DISTRICT
Operation and Maintenance of the Electro Mechanical installations, equipments, components, pipelines valves and appurtenances, water retaining structures including protecton of all schemee components from damages/ theft undertaking legal actions for such untoward incidents, preventive maintenance, disinfection and deliverance of water as per quality standards and supply of earmarked quantity of water to the beneficiaries as per Annexure .........., carrying out the O&M as per standard operating procedures, Acts and rules in force and as directed by TWAD Board Oficers and excluding cost towards attending leak, burst repair and replacement works to electro mechanical installations consumables for disinfection of water, cleaning of all water retaining structure, electricity .
Repair & Renewals and Leak & Bursts :
Attending Leaks in the PVC pipelines of this CWSS for the following items, as per the standard procedure including earthwork excavation, dewatering, removing, relaying, jointing, civil works, cost of materials and all other incidental charges, etc complete within the stipulated time limit as directed by the TWAD Board officers.
PVC 4 KSC Pipes_Minor Leak
90mm OD PVC 4 KSC pipes_Minor Leak
110mm OD PVC 4 KSC pipes_Minor Leak
140mm OD PVC 4 KSC pipes_Minor Leak
PVC 4 KSC Pipes_Major Leak
90mm OD PVC 4 KSC pipes_Major Leak
110mm OD PVC 4 KSC pipes_Major Leak
140mm OD PVC 4 KSC pipes_Major Leak
Attending Leaks/Bursts in the HDPE pipelines of this CWSS for the following items, as per the standard procedure including earthwork excavation, dewatering, removing, relaying, jointing by Electro fusion/butt Joint, civil works, cost of materials and all other incidental charges, etc complete within the stipulated time limit as directed by the TWAD Board officers.
HDPE PN 6 Pipes_Minor Leaks
110mm HDPE PN 6 pipes_Minor Leak
140mm HDPE PN 6 pipes_Minor Leak
160mm HDPE PN 6 pipes_Minor Leak
200mm HDPE PN 6 pipes_Minor Leak
HDPE PN 6 Pipes_Major Leaks
125mm HDPE PN 6 pipes_Major Leak
160mm HDPE PN 6 pipes_Major Leak
200mm HDPE PN 6 pipes_Major Leak
Attending leaks and bursts in GI pipes of various sizes including Supply and delivery of following G I PIPES (MEDIUM) AS PER IS 1239/PART I/2004 and Lowering GI pipes and specials in the trenches and laying to proper grade and alignment, jointing with GI Specials and as directed by the TWAD Officers
80mm GI Pipe leak above GL
100mm GI Pipe leak above GL
Attending joint (Collar) Leaks in the AC pipelines of this CWSS for the following items, as per the standard procedure including earthwork excavation, dewatering, removing, relaying, jointing, civil works, cost of materials and all incidental charges, etc complete within the stipulated time limit as specified in Clause 2.6.4 of General conditions of Contract
AC Pipe_Collar Leak
150mm AC_Collar Leak
200mm AC_Collar Leak
250mm AC_Collar Leak
AC Pipe_Minor Leak centre crack
150mm AC Pipe_MS Cut Barrel
200mm AC Pipe_MS Cut Barrel
250mm AC Pipe_MS Cut Barrel
Attending Leaks/Bursts in the O-PVC pipelines of this CWSS for the following items, as per the standard procedure including earthwork excavation, dewatering, removing, relaying, jointing, civil works, cost of materials and all incidental charges, etc complete within the stipulated time limit as specified in Clause 2.6.4 of General conditions of Contract
250mm O-PVC Pipe Leak
Attending Leaks/Bursts in the DI pipelines of this CWSS for the following items, as per the standard procedure including earthwork excavation, dewatering, removing, relaying, jointing, civil works, cost of materials and all incidental charges, etc complete within the stipulated time limit as specified in Clause 2.6.4 of General conditions of Contract
DI Pipes_Minor Leak
150mm DI pipes - Minor leak
Labour for cutting open B.T. Roads (or) Maccadam road for laying water mains - 15 cm thick (SOR VOL II P.195)
For all size Pumping mains
Road Restoration with PCC 1:2:4 using 20 mm HBGS for the Concrete Road cut Portion after the pipes are laid, joined and tested complete and as directed by TWAD Board Officers - 15 cm thick
For all size Pumping mains
MATERIALS
Supply and delivery of following sizes of UN PLASTICIZED O-PVC PIPES FOR POTABLE WATER SUPPLY AS PER IS 16647 / 2017 inclusive of transportation charges to stockyard excluding unloading anywhere in Tamilnadu etc, complete and as directed by the TWAD Board officers. (SOR VOL II P.11)
250mm O-PVC PIPE PN 12.5 Class 500
Supply and delivery of following sizes of HDPE PIPES - PE 100 AS PER IS 4984/2016 (Pre-Compounded Resin) inclusive of transportation charges to stockyard excluding unloading anywhere in Tamilnadu etc, complete and as directed by the TWAD Board officers. (SOR VOL II P.14)
200mm HDPE PN 6
160mm HDPE PN 6
140mm HDPE PN 6
125mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
CIVIL WORKS
Earth work excavation and depositing on bank with initial lead of 10 m and initial lift of 2m in narrow trenches for laying of pipes for water supply in the following types of soil
Hard stiff clay, stiff black cotton, hard red earth, shales, murrum gravel, stoney earth and earth mixed with small size boulders and hard gravelly soil. (SOR VOL II P.192)
250mm O PVC
200mm HDPE PN 6
160mm HDPE PN 6
140mm HDPE PN 6
125mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
Lowering of OPVC Pipes and specials in the trenches and laying to proper grade and alignment and as directed by the TWAD Officers. (SOR VOL II P.161)
250mm O PVC
Lowering HDPE pipes and specials to trench and laying to proper grade and alignment and as directed by the TWAD Officers. (SOR VOL II P.171)
200mm HDPE PN 6
160mm HDPE PN 6
140mm HDPE PN 6
125mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
Jointing OPVC-S/S pipes and specials with rubber gaskets (tyton joint) including cost of lubricants. (including cost of jointing materials) (SOR VOL II P.164)
250mm O PVC - 6m Length
Jointing HDPE Pipes and Specials by butt fusion welding / electro fusion welding joints using fusion equipment as per ISO 21307-2011 and as per IS 7634 (part-2) : 2012 including cost of hire charges for butt fusion equipment power supply arrangements etc., complete as per directed by TWAD Board Officers. (SOR VOL II P.184)
200mm HDPE PN 6
160mm HDPE PN 6
140mm HDPE PN 6
125mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
75mm HDPE PN 6
63mm HDPE PN 6
Refiling with excavated sand or other loose soil complying with standerd specification in layers of 15 cm thick well rammed and consolidated after pipes and specials are laid and tested. (SOR VOL II P.192)
250mm O PVC
200mm HDPE PN 6
160mm HDPE PN 6
140mm HDPE PN 6
125mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
Pumpsets
Carrying out the following repair works occuring during the maintenance period in the Electrical, Mechanical and Elctro-mechanical items to bring back the scheme / components into normal running conditition as per standard specification including all labour charges, cost of materials and all incidental charges within the stipulated time limit etc., complete as specified in Clause 2.8 of General conditions of Contract Part II etc as directed by TWAD Board officers
Attending the Rewinding, Repair and Renewal works in various capacity Open Well Submersible Pumpsets
Removing the Submersible pumpset by using tripod set after disconnecting the power supply cable and delivery pipe line fittings
5HP -OWS
7.5HP -OWS
12.50HP -OWS
30HP -OWS
Transporting the pumpset from Pump House to work shop.
5HP -OWS
7.5HP -OWS
12.50HP -OWS
30HP -OWS
Rewinding the submersible motor using best quality winding wire including cost of wire, Sleeve, other insulating and fibre class materials after deducting the cost of old materials.
5HP -OWS
7.5HP -OWS
12.50HP -OWS
30HP -OWS
Reconditioning the worn-out shaft and fittings, impeller and Gun Metal/ SS Bushes including cost of lath work & labour charges etc.,
5HP -OWS
7.5HP -OWS
12.50HP -OWS
30HP -OWS
Replacement of carbon type thrust bearing and pumpside Gun Metal Bush including cost of labour charges after deducting the cost of old material
5HP -OWS
7.5HP -OWS
12.50HP -OWS
30HP -OWS
Transporting charges for Submersible pumpset from work shop to Pump House after attending repair works.
5HP -OWS
7.5HP -OWS
12.50HP -OWS
30HP -OWS
Re-erection of pumpset in the Sump / Well by using tripod set and required Rubber washer and Bolt & Nuts and connecting the power supply cable and delivery pipeline arrangements testing to trial pumping.
5HP -OWS
7.5HP -OWS
12.50HP -OWS
30HP -OWS
Attending the Rewinding, Repair and Renewal works in Monoblock Pumpset
5HP_Monoblock
Removing the Monblock Centrifugal Pumpset from the Bed assembly by using contractors tools and materials after disconnecting the power supply cable and delivery pipe line fittings with required dummy plate arrangements.
Transporting the pumpset from the Pumping Station to work shop.
Removing the Burnt winding materials from the stator slots and cleaning the stator and rotor assembly by using contractor tools and materials
Reconditioning the worn-out shaft and fittings, impeller and Rope gland bush including cost of lath work & labour charges etc.,
Rewinding the Monblock Centrifugal Motor using best quality winding wire including cost of wire, Sleeve, other insulating and fibre class materials after deducting the cost of old materials.
Replacement of driven end (No: XXXX) and Non driven end (No:XXXX) Bearings suitable for Monblock Centrifugal Motor including the cost of Bearing and labour charges after deducting the cost of old materials.
Replacement of cooling fan at motor end and Terminal Board for suitable for Monblock Centrifugal Pumpset and labour charges after deducting the cost of old materials.
Transporting charges for Monblock Centrifugal Pumpset from work shop to Pump House after attending repair works.
Re-erection of pumpset in the Sump / Well by using required Rubber washer and Bolt & Nuts and connecting the power supply cable and delivery pipe line arrangements, testing and trial pumping.
7.5HP_Monoblock
Removing the Monblock Centrifugal Pumpset from the Bed assembly by using contractors tools and materials after disconnecting the power supply cable and delivery pipe line fittings with required dummy plate arrangements.
Transporting the pumpset from the Pumping Station to work shop.
Removing the Burnt winding materials from the stator slots and cleaning the stator and rotor assembly by using contractor tools and materials
Reconditioning the worn-out shaft and fittings, impeller and Rope gland bush including cost of lath work & labour charges etc.,
Rewinding the Monblock Centrifugal Motor using best quality winding wire including cost of wire, Sleeve, other insulating and fibre class materials after deducting the cost of old materials.
Replacement of driven end (No: XXXX) and Non driven end (No:XXXX) Bearings suitable for Monblock Centrifugal Motor including the cost of Bearing and labour charges after deducting the cost of old materials.
Replacement of cooling fan at motor end and Terminal Board for suitable for Monblock Centrifugal Pumpset and labour charges after deducting the cost of old materials.
Transporting charges for Monblock Centrifugal Pumpset from work shop to Pump House after attending repair works.
Re-erection of pumpset in the Sump / Well by using required Rubber washer and Bolt & Nuts and connecting the power supply cable and delivery pipe line arrangements, testing and trial pumping.
Attending the Rewinding and replacement of bearings of Induction Motor for Horizontal Split Casing Pumpsets
50HP -HSC_Motor
Charges for removing the motor from bed after disconnection of power supply cable, Earthing line and Coupling arrangements by using contractor tools and materials.
Transportation charges for conveying the motor from the Booster Station to Our work shop including loading and unloading charges.
Labour Charges for removing the two end side cover with fan arrangements and the damaged driven end and non driven end bearings.
Charges for removing the burnt wires from the rotor assembly and cleaning and checking the slots of rotor and labour charges for rewinding of Centrifugal Squirrel Cage Induction Motor after deducting the cost of old materials and including suppy and delivery of Class ‘F’ Insulation Super enameled Copper wire, required for rewinding and Fiber Glass wire, Fiber Glass Sleeves, Class ‘F’ insulation paper, Copper Socket and FG thread required for rewinding of Squirrel Cage Induction Motor
Labour Charges for reconditioning the worn out shaft for driven end and non driven end bearing seating, knurling, bend checking, and etc.,
Supply and delivery of Driven End and Non Driven End bearings suitable for the required Induction Motor
Labour Charges fixing the DE and NDE bearings correctly and neatly with required lubrications by contractors tools & Materials
Transportation charges for conveying the motor from work shop to Pumping Station
Charges for reassembling the motor with bed and pump coupling, alignment checking connecting power supply cable, including required bolt and Nuts and testing trial running etc.,
Attending the Repair and Reconditioning works of various capacities of Horizontal Split Casing Pumpsets
50HP -HSC_Pump
Charges for removing the motor from bed assembly after dismantling of Coupling arrangements and removing the pump assembly and including the provision of dummy flange arrangements by using contractor tools and materials.
Transportation charges for conveying the Pump assembly from the Pumping Station to work shop including loading and unloading charges.
Labour Charges for removing the impeller by using hydralic system, DE and NDE Bearings
Labour Charges for reconditioning the worn out shaft including welding the shaft to suit the impeller and suit the driven end and non driven end bearing seating, knurling, bend checking and etc.,
Supply, delivery and fixing of Shaft sleeves in Gun metal including machining charges and making key ways after deducting the scrap materials
Balancing of Rotor with impeller both dyanamically and Hydralically by using required dyanamic balancing machine
Supply, delivery and fixing of Gunmetal seal rings for impeller neck including machining charges after deducting the scrap materials
Supply and delivery of Driven End and Non Driven End bearings
Labour Charges fixing the DE and NDE bearings correctly and neatly with required lubrications by contractors tools & Materials
Transportation charges for conveying the Pump assembly from work shop to Pumping Station.
Charges for reassembling the Pump with Motor by using pulley and alignment checking, including required bolt and Nuts and testing trial running etc.,
SUPPLY AND DELIVERY OF SERVICE CONNECTION ACCESSORIES L.T. 1100V PVC ALUMINIUM ARMOURED UNDER GROUND CABLE WITH ISI MARK
70 Sq.mm 3.5 Core
95 Sq.mm 3.5 Core
120 Sq.mm 3.5 Core
SUPPLY AND DELIVERY OF L.T. CABLES following size sq mm 3 CORE 1.1 KV GRADE ARMOURED ALUMINIUM CONDUCTOR CROSS LINKED POLY ETHYLENE INSULATED PVC SHEATHED CABLES CONFORMING TO IS 7098 (PART I)/1988 WITH ISI MARKING
95 Sq.mm 3 Core
SUPPLY AND DELIVERY OF PVC INSULATED AND SHEATHED following sq mm 3 CORE FLAT TYPE COPPER CABLE CONFORMING TO IS 694/1989
SUPPLY AND DELIVERY OF 150mm dia Pressure Gauge and Vaccum guage including all accessories as per specification (For Suction and Delivery to be mounted on wall on Teak Wood Board)
Supply, delivey and fixing of MOULDED CASE CIRCUIT BREAKER (MCCB) WITH THERMO MAGNETIC RELEASE - 4 Pole
Range - 63/100A
Range - 125A
Supply, delivey and fixing of RATE FOR MIXED DI-ELECTRIC CAPACITOR WITH TNEB TEST CERTIFICATE WITH ACCESSORIES INCLUDING BANKING CONFORMIING TO IS 2834.
Supply, delivey and fixing of Electro magnetic contactors of suitable capacity in AC Three Phase rating, conforming to IS/IEC 60947-4-1.
Supply, delivey and fixing of Overload Relays: Directly operated Bimetallic Thermal overload relay which operates in case of overload and also in case of under voltage with manual and auto reset mode.
Supply, delivey and fixing of Preventer – Single Phasing - Electric Motor protection device against single phasing. The device should protect the motor against single phasing, reverse phasing and unbalance supply. The device should be suitable for any auxillary device and have provisions for mounting in panel boards. Operate without need of any auxiliary supply.
Electric Motor protection device against dry running. The device should protect the motor against Dry running. The device should be suitable for any auxillary device and have provisions for mounting in panel boards. Operate without need of any auxiliary supply
Supply, delivey and fixing of FUSE UNITS (ANCHOR /EQUIVALENT)
63 Amps Porcelain fuse unit (500 V)
100 Amps Porcelain fuse unit (500 V)
200 Amps Porcelain fuse unit (500 V)
Supply, delivey and fixing of CHANGE OVER SWITCHES
100 Amps three phase 500 V 4 pole Change over switch
200 Amps three phase 500 V 4 pole Change over switch
250 Amps three phase 500 V 4 pole Change over switch
Supply, delivey and fixing of PVC INSULATED SINGLE CORE MULTI STRAND FIRE RETARDANT FLEXIBLE COPPER CABLE WITH ISI MARK CONFORMING TO IS
Supply, delivey and fixing of HRC - FUSES - HIGHER END
HRC - 16 Amps
HRC - 32 Amps
HRC - 63 Amps
HRC - 125 Amps
HRC - 200 Amps
Supply and delivery of the following Electrical Works :consumable items at the site of work to carryout the general maintenace works
Voltmeter Digital - Three Phase Class 1-AC
Ammeter Digital - Three Phase Class 1-1A
20W 4 Feet LED Fitting with LED (Higher end)
LED OUTDOOR FITTINGS (LIGHT EMITTING DIODE) LOWER END 25W LED Street Light Fitting with LED
Supply and delivery of the following consumable items for Pump Set repairs at the site of work to carryout the general maintenace works
80mm GM Gate valve
100mm GM Gate valve
R I Sheet
Bolts and Nuts - All sizes
50mm GI Pipe
80mm GI Pipe
100mm GI pipe
Supply, delivery and fixing of DI D/F Gate sluice/scour valves (soft seated) resilient seated soft sealing Gate Valves(Sluice Valves) with body Bonnet of Ductile cast iron of Grade GGG 40 or equivalent grade, Wedge fully rubber lined with EPDM replaceable spindle nut without gland packing and with 3 O- Ring protection on the shaft and seals of NBR and the valves should be of Vacuum tight and 100% leak proof with face to face dimensions as per BS 5163- 89/ISI 14846-2000/DIN 3202 F4. All the valves should be with electrostatic powder coating both inside and out side with pocket less straight through body passage. All the valves are to be compatible for buried application with pressure rating PN 10/16 and with 5 years warranty.
100mm DI Gate Valve
150mm DI Gate Valve
Supply, delivey and fixing of C.I. DOUBLE AIR VALVE AS PER ISI 14845/2000 AND WITH 5 YEARS WARRANTY
50mm CI Air Valve
80mm CI Air Valve
100mm CI Air Valve
SUMP CLEANING
Cleaning of all storage points like sumps, elevated reservoirs of various capacities available in this scheme at a frequency of once in two months including scrapping the inner side of compartment completely, scouring / dewatering / desilting using required machineries, materials, labour and all other incidental charges, application of bleaching powder/ solution etc complete.
For 60001 to 75000 lit cap sump
For 75001 to 100000 lit cap sump
Desilting light or sandysoil or silt from collection well below water level including the charges for special tools & plants and air compressor etc complete
Bleaching powder of 34% concentration as per standard specification.
COMBINED WATER SUPPLY SCHEME TO ABDULLAPURAM AND 13 OTHER HABITATIONS IN VEMBAKKAM UNION OF TIRUVANNAMALAI DISTRICT
Operation and Maintenance of the Electro Mechanical installations, equipments, components, pipelines valves and appurtenances, water retaining structures including protecton of all schemee components from damages/ theft undertaking legal actions for such untoward incidents, preventive maintenance, disinfection and deliverance of water as per quality standards and supply of earmarked quantity of water to the beneficiaries as per Annexure .........., carrying out the O&M as per standard operating procedures, Acts and rules in force and as directed by TWAD Board Oficers and excluding cost towards attending leak, burst repair and replacement works to electro mechanical installations consumables for disinfection of water, cleaning of all water retaining structure, electricity .
Repair & Renewals and Leak & Bursts :
Attending Leaks in the PVC pipelines of this CWSS for the following items, as per the standard procedure including earthwork excavation, dewatering, removing, relaying, jointing, civil works, cost of materials and all other incidental charges, etc complete within the stipulated time limit as directed by the TWAD Board officers.
PVC 4 KSC Pipes_Minor Leak
63mm OD PVC 4 KSC pipes_Minor Leak
75mm OD PVC 4 KSC pipes_Minor Leak
90mm OD PVC 4 KSC pipes_Minor Leak
110mm OD PVC 4 KSC pipes_Minor Leak
140mm OD PVC 4 KSC pipes_Minor Leak
PVC 4 KSC Pipes_Major Leak
63mm OD PVC 4 KSC pipes_Major Leak
75mm OD PVC 4 KSC pipes_Major Leak
90mm OD PVC 4 KSC pipes_Major Leak
110mm OD PVC 4 KSC pipes_Major Leak
140mm OD PVC 4 KSC pipes_Major Leak
Attending Leaks/Bursts in the HDPE pipelines of this CWSS for the following items, as per the standard procedure including earthwork excavation, dewatering, removing, relaying, jointing by Electro fusion/butt Joint, civil works, cost of materials and all other incidental charges, etc complete within the stipulated time limit as directed by the TWAD Board officers.
HDPE PN 6 Pipes_Minor Leaks
63mm HDPE PN 6 pipes_Minor Leak
75mm HDPE PN 6 pipes_Minor Leak
140mm HDPE PN 6 pipes_Minor Leak
160mm HDPE PN 6 pipes_Minor Leak
HDPE PN 6 Pipes_Major Leaks
63mm HDPE PN 6 pipes_Major Leak
75mm HDPE PN 6 pipes_Major Leak
140mm HDPE PN 6 pipes_Major Leak
160mm HDPE PN 6 pipes_Major Leak
Attending leaks and bursts in GI pipes of various sizes including Supply and delivery of following G I PIPES (MEDIUM) AS PER IS 1239/PART I/2004 and Lowering GI pipes and specials in the trenches and laying to proper grade and alignment, jointing with GI Specials and as directed by the TWAD Officers
50mm GI Pipe leak above GL
65mm GI Pipe leak above GL
80mm GI Pipe leak above GL
100mm GI Pipe leak above GL
Attending joint (Collar) Leaks in the AC pipelines of this CWSS for the following items, as per the standard procedure including earthwork excavation, dewatering, removing, relaying, jointing, civil works, cost of materials and all incidental charges, etc complete within the stipulated time limit as specified in Clause 2.6.4 of General conditions of Contract
AC Pipe_Collar Leak
150mm AC_Collar Leak
Labour for cutting open B.T. Roads (or) Maccadam road for laying water mains - 15 cm thick (SOR VOL II P.195)
For all size Pumping mains
Road Restoration with PCC 1:2:4 using 20 mm HBGS for the Concrete Road cut Portion after the pipes are laid, joined and tested complete and as directed by TWAD Board Officers - 15 cm thick
For all size Pumping mains
MATERIALS
Supply and delivery of following sizes of HDPE PIPES - PE 100 AS PER IS 4984/2016 (Pre-Compounded Resin) inclusive of transportation charges to stockyard excluding unloading anywhere in Tamilnadu etc, complete and as directed by the TWAD Board officers. (SOR VOL II P.14)
160mm HDPE PN 6
140mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
75mm HDPE PN 6
63mm HDPE PN 6
CIVIL WORKS
Earth work excavation and depositing on bank with initial lead of 10 m and initial lift of 2m in narrow trenches for laying of pipes for water supply in the following types of soil
Hard stiff clay, stiff black cotton, hard red earth, shales, murrum gravel, stoney earth and earth mixed with small size boulders and hard gravelly soil. (SOR VOL II P.192)
160mm HDPE PN 6
140mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
75mm HDPE PN 6
63mm HDPE PN 6
Lowering HDPE pipes and specials to trench and laying to proper grade and alignment and as directed by the TWAD Officers. (SOR VOL II P.171)
160mm HDPE PN 6
140mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
75mm HDPE PN 6
63mm HDPE PN 6
Jointing HDPE Pipes and Specials by butt fusion welding / electro fusion welding joints using fusion equipment as per ISO 21307-2011 and as per IS 7634 (part-2) : 2012 including cost of hire charges for butt fusion equipment power supply arrangements etc., complete as per directed by TWAD Board Officers. (SOR VOL II P.184)
160mm HDPE PN 6
140mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
75mm HDPE PN 6
63mm HDPE PN 6
Refiling with excavated sand or other loose soil complying with standerd specification in layers of 15 cm thick well rammed and consolidated after pipes and specials are laid and tested. (SOR VOL II P.192)
160mm HDPE PN 6
140mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
75mm HDPE PN 6
63mm HDPE PN 6
Pumpsets
Carrying out the following repair works occuring during the maintenance period in the Electrical, Mechanical and Elctro-mechanical items to bring back the scheme / components into normal running conditition as per standard specification including all labour charges, cost of materials and all incidental charges within the stipulated time limit etc., complete as specified in Clause 2.8 of General conditions of Contract Part II etc as directed by TWAD Board officers
Attending the Rewinding, Repair and Renewal works in various capacity Open Well Submersible Pumpsets
Removing the Submersible pumpset by using tripod set after disconnecting the power supply cable and delivery pipe line fittings
5HP -OWS
10HP -OWS
12.50HP -OWS
Transporting the pumpset from Pump House to work shop.
5HP -OWS
10HP -OWS
12.50HP -OWS
Rewinding the submersible motor using best quality winding wire including cost of wire, Sleeve, other insulating and fibre class materials after deducting the cost of old materials.
5HP -OWS
10HP -OWS
12.50HP -OWS
Reconditioning the worn-out shaft and fittings, impeller and Gun Metal/ SS Bushes including cost of lath work & labour charges etc.,
5HP -OWS
10HP -OWS
12.50HP -OWS
Replacement of carbon type thrust bearing and pumpside Gun Metal Bush including cost of labour charges after deducting the cost of old material
5HP -OWS
10HP -OWS
12.50HP -OWS
Transporting charges for Submersible pumpset from work shop to Pump House after attending repair works.
5HP -OWS
10HP -OWS
12.50HP -OWS
Re-erection of pumpset in the Sump / Well by using tripod set and required Rubber washer and Bolt & Nuts and connecting the power supply cable and delivery pipeline arrangements testing to trial pumping.
5HP -OWS
10HP -OWS
12.50HP -OWS
SUPPLY AND DELIVERY OF SERVICE CONNECTION ACCESSORIES L.T. 1100V PVC ALUMINIUM ARMOURED UNDER GROUND CABLE WITH ISI MARK
25 Sq.mm 3.5 Core
35 Sq.mm 3.5 Core
50 Sq.mm 3.5 Core
SUPPLY AND DELIVERY OF L.T. CABLES following size sq mm 3 CORE 1.1 KV GRADE ARMOURED ALUMINIUM CONDUCTOR CROSS LINKED POLY ETHYLENE INSULATED PVC SHEATHED CABLES CONFORMING TO IS 7098 (PART I)/1988 WITH ISI MARKING
50 Sq.mm 3 Core
SUPPLY AND DELIVERY OF PVC INSULATED AND SHEATHED following sq mm 3 CORE FLAT TYPE COPPER CABLE CONFORMING TO IS 694/1989
SUPPLY AND DELIVERY OF 150mm dia Pressure Gauge and Vaccum guage including all accessories as per specification (For Suction and Delivery to be mounted on wall on Teak Wood Board)
Supply, delivey and fixing of MOULDED CASE CIRCUIT BREAKER (MCCB) WITH THERMO MAGNETIC RELEASE - 4 Pole
Range - 63/100A
Supply, delivey and fixing of RATE FOR MIXED DI-ELECTRIC CAPACITOR WITH TNEB TEST CERTIFICATE WITH ACCESSORIES INCLUDING BANKING CONFORMIING TO IS 2834.
Supply, delivey and fixing of Electro magnetic contactors of suitable capacity in AC Three Phase rating, conforming to IS/IEC 60947-4-1.
Supply, delivey and fixing of Overload Relays: Directly operated Bimetallic Thermal overload relay which operates in case of overload and also in case of under voltage with manual and auto reset mode.
Supply, delivey and fixing of Preventer – Single Phasing - Electric Motor protection device against single phasing. The device should protect the motor against single phasing, reverse phasing and unbalance supply. The device should be suitable for any auxillary device and have provisions for mounting in panel boards. Operate without need of any auxiliary supply.
Electric Motor protection device against dry running. The device should protect the motor against Dry running. The device should be suitable for any auxillary device and have provisions for mounting in panel boards. Operate without need of any auxiliary supply
Supply, delivey and fixing of FUSE UNITS (ANCHOR /EQUIVALENT)
63 Amps Porcelain fuse unit (500 V)
100 Amps Porcelain fuse unit (500 V)
200 Amps Porcelain fuse unit (500 V)
Supply, delivey and fixing of CHANGE OVER SWITCHES
16 Amps three phase 500 V 4 pole Change over switch
32 Amps three phase 500 V 4 pole Change over switch
63 Amps three phase 500 V 4 pole Change over switch
100 Amps three phase 500 V 4 pole Change over switch
Supply, delivey and fixing of PVC INSULATED SINGLE CORE MULTI STRAND FIRE RETARDANT FLEXIBLE COPPER CABLE WITH ISI MARK CONFORMING TO IS
Supply, delivey and fixing of HRC - FUSES - HIGHER END
HRC - 16 Amps
HRC - 32 Amps
HRC - 63 Amps
HRC - 125 Amps
Supply and delivery of the following Electrical Works :consumable items at the site of work to carryout the general maintenace works
Voltmeter Digital - Three Phase Class 1-AC
Ammeter Digital - Three Phase Class 1-1A
20W 4 Feet LED Fitting with LED (Higher end)
LED OUTDOOR FITTINGS (LIGHT EMITTING DIODE) LOWER END 25W LED Street Light Fitting with LED
Supply and delivery of the following consumable items for Pump Set repairs at the site of work to carryout the general maintenace works
50mm GM Gate valve
80mm GM Gate valve
R I Sheet
Bolts and Nuts - All sizes
50mm GI Pipe
80mm GI Pipe
100mm GI pipe
Supply, delivery and fixing of DI D/F Gate sluice/scour valves (soft seated) resilient seated soft sealing Gate Valves(Sluice Valves) with body Bonnet of Ductile cast iron of Grade GGG 40 or equivalent grade, Wedge fully rubber lined with EPDM replaceable spindle nut without gland packing and with 3 O- Ring protection on the shaft and seals of NBR and the valves should be of Vacuum tight and 100% leak proof with face to face dimensions as per BS 5163- 89/ISI 14846-2000/DIN 3202 F4. All the valves should be with electrostatic powder coating both inside and out side with pocket less straight through body passage. All the valves are to be compatible for buried application with pressure rating PN 10/16 and with 5 years warranty.
100mm DI Gate Valve
Supply, delivey and fixing of C.I. DOUBLE AIR VALVE AS PER ISI 14845/2000 AND WITH 5 YEARS WARRANTY
50mm CI Air Valve
SUMP CLEANING
Cleaning of all storage points like sumps, elevated reservoirs of various capacities available in this scheme at a frequency of once in two months including scrapping the inner side of compartment completely, scouring / dewatering / desilting using required machineries, materials, labour and all other incidental charges, application of bleaching powder/ solution etc complete.
For 15001 to 30000 lit cap sump
Desilting light or sandysoil or silt from collection well below water level including the charges for special tools & plants and air compressor etc complete
Bleaching powder of 34% concentration as per standard specification.
COMBINED WATER SUPPLY SCHEME TO ANAKKAVUR AND 6 OTHER HABITATIONS IN ANAKKAVUR UNION OF TIRUVANNAMALAI DISTRICT
Operation and Maintenance of the Electro Mechanical installations, equipments, components, pipelines valves and appurtenances, water retaining structures including protecton of all schemee components from damages/ theft undertaking legal actions for such untoward incidents, preventive maintenance, disinfection and deliverance of water as per quality standards and supply of earmarked quantity of water to the beneficiaries as per Annexure .........., carrying out the O&M as per standard operating procedures, Acts and rules in force and as directed by TWAD Board Oficers and excluding cost towards attending leak, burst repair and replacement works to electro mechanical installations consumables for disinfection of water, cleaning of all water retaining structure, electricity .
Repair & Renewals and Leak & Bursts :
Attending Leaks in the PVC pipelines of this CWSS for the following items, as per the standard procedure including earthwork excavation, dewatering, removing, relaying, jointing, civil works, cost of materials and all other incidental charges, etc complete within the stipulated time limit as directed by the TWAD Board officers.
PVC 4 KSC Pipes_Minor Leak
75mm OD PVC 4 KSC pipes_Minor Leak
90mm OD PVC 4 KSC pipes_Minor Leak
140mm OD PVC 4 KSC pipes_Minor Leak
PVC 4 KSC Pipes_Major Leak
75mm OD PVC 4 KSC pipes_Major Leak
90mm OD PVC 4 KSC pipes_Major Leak
140mm OD PVC 4 KSC pipes_Major Leak
Attending Leaks/Bursts in the HDPE pipelines of this CWSS for the following items, as per the standard procedure including earthwork excavation, dewatering, removing, relaying, jointing by Electro fusion/butt Joint, civil works, cost of materials and all other incidental charges, etc complete within the stipulated time limit as directed by the TWAD Board officers.
HDPE PN 6 Pipes_Minor Leaks
140mm HDPE PN 6 pipes_Minor Leak
HDPE PN 6 Pipes_Major Leaks
140mm HDPE PN 6 pipes_Major Leak
Attending leaks and bursts in GI pipes of various sizes including Supply and delivery of following G I PIPES (MEDIUM) AS PER IS 1239/PART I/2004 and Lowering GI pipes and specials in the trenches and laying to proper grade and alignment, jointing with GI Specials and as directed by the TWAD Officers
50mm GI Pipe leak above GL
65mm GI Pipe leak above GL
80mm GI Pipe leak above GL
100mm GI Pipe leak above GL
Labour for cutting open B.T. Roads (or) Maccadam road for laying water mains - 15 cm thick (SOR VOL II P.195)
For all size Pumping mains
Road Restoration with PCC 1:2:4 using 20 mm HBGS for the Concrete Road cut Portion after the pipes are laid, joined and tested complete and as directed by TWAD Board Officers - 15 cm thick
For all size Pumping mains
MATERIALS
Supply and delivery of following sizes of HDPE PIPES - PE 100 AS PER IS 4984/2016 (Pre-Compounded Resin) inclusive of transportation charges to stockyard excluding unloading anywhere in Tamilnadu etc, complete and as directed by the TWAD Board officers. (SOR VOL II P.14)
140mm HDPE PN 6
90mm HDPE PN 6
75mm HDPE PN 6
CIVIL WORKS
Earth work excavation and depositing on bank with initial lead of 10 m and initial lift of 2m in narrow trenches for laying of pipes for water supply in the following types of soil
Hard stiff clay, stiff black cotton, hard red earth, shales, murrum gravel, stoney earth and earth mixed with small size boulders and hard gravelly soil. (SOR VOL II P.192)
140mm HDPE PN 6
90mm HDPE PN 6
75mm HDPE PN 6
Lowering HDPE pipes and specials to trench and laying to proper grade and alignment and as directed by the TWAD Officers. (SOR VOL II P.171)
140mm HDPE PN 6
90mm HDPE PN 6
75mm HDPE PN 6
Jointing HDPE Pipes and Specials by butt fusion welding / electro fusion welding joints using fusion equipment as per ISO 21307-2011 and as per IS 7634 (part-2) : 2012 including cost of hire charges for butt fusion equipment power supply arrangements etc., complete as per directed by TWAD Board Officers. (SOR VOL II P.184)
140mm HDPE PN 6
90mm HDPE PN 6
75mm HDPE PN 6
Refiling with excavated sand or other loose soil complying with standerd specification in layers of 15 cm thick well rammed and consolidated after pipes and specials are laid and tested. (SOR VOL II P.192)
140mm HDPE PN 6
90mm HDPE PN 6
75mm HDPE PN 6
Pumpsets
Carrying out the following repair works occuring during the maintenance period in the Electrical, Mechanical and Elctro-mechanical items to bring back the scheme / components into normal running conditition as per standard specification including all labour charges, cost of materials and all incidental charges within the stipulated time limit etc., complete as specified in Clause 2.8 of General conditions of Contract Part II etc as directed by TWAD Board officers
Attending the Rewinding, Repair and Renewal works in various capacity Open Well Submersible Pumpsets
Removing the Submersible pumpset by using tripod set after disconnecting the power supply cable and delivery pipe line fittings
7.5HP -OWS
12.5HP -OWS
20HP -OWS
Transporting the pumpset from Pump House to work shop.
7.5HP -OWS
12.5HP -OWS
20HP -OWS
Rewinding the submersible motor using best quality winding wire including cost of wire, Sleeve, other insulating and fibre class materials after deducting the cost of old materials.
7.5HP -OWS
12.5HP -OWS
20HP -OWS
Reconditioning the worn-out shaft and fittings, impeller and Gun Metal/ SS Bushes including cost of lath work & labour charges etc.,
7.5HP -OWS
12.5HP -OWS
20HP -OWS
Replacement of carbon type thrust bearing and pumpside Gun Metal Bush including cost of labour charges after deducting the cost of old material
7.5HP -OWS
12.5HP -OWS
20HP -OWS
Transporting charges for Submersible pumpset from work shop to Pump House after attending repair works.
7.5HP -OWS
12.5HP -OWS
20HP -OWS
Re-erection of pumpset in the Sump / Well by using tripod set and required Rubber washer and Bolt & Nuts and connecting the power supply cable and delivery pipeline arrangements testing to trial pumping.
7.5HP -OWS
12.5HP -OWS
20HP -OWS
SUPPLY AND DELIVERY OF SERVICE CONNECTION ACCESSORIES L.T. 1100V PVC ALUMINIUM ARMOURED UNDER GROUND CABLE WITH ISI MARK
25 Sq.mm 3.5 Core
35 Sq.mm 3.5 Core
50 Sq.mm 3.5 Core
SUPPLY AND DELIVERY OF L.T. CABLES following size sq mm 3 CORE 1.1 KV GRADE ARMOURED ALUMINIUM CONDUCTOR CROSS LINKED POLY ETHYLENE INSULATED PVC SHEATHED CABLES CONFORMING TO IS 7098 (PART I)/1988 WITH ISI MARKING
50 Sq.mm 3 Core
SUPPLY AND DELIVERY OF PVC INSULATED AND SHEATHED following sq mm 3 CORE FLAT TYPE COPPER CABLE CONFORMING TO IS 694/1989
SUPPLY AND DELIVERY OF 150mm dia Pressure Gauge and Vaccum guage including all accessories as per specification (For Suction and Delivery to be mounted on wall on Teak Wood Board)
Supply, delivey and fixing of MOULDED CASE CIRCUIT BREAKER (MCCB) WITH THERMO MAGNETIC RELEASE - 4 Pole
Range - 63/100A
Range - 125A
Supply, delivey and fixing of RATE FOR MIXED DI-ELECTRIC CAPACITOR WITH TNEB TEST CERTIFICATE WITH ACCESSORIES INCLUDING BANKING CONFORMIING TO IS 2834.
Supply, delivey and fixing of Electro magnetic contactors of suitable capacity in AC Three Phase rating, conforming to IS/IEC 60947-4-1.
Supply, delivey and fixing of Overload Relays: Directly operated Bimetallic Thermal overload relay which operates in case of overload and also in case of under voltage with manual and auto reset mode.
Supply, delivey and fixing of Preventer – Single Phasing - Electric Motor protection device against single phasing. The device should protect the motor against single phasing, reverse phasing and unbalance supply. The device should be suitable for any auxillary device and have provisions for mounting in panel boards. Operate without need of any auxiliary supply.
Electric Motor protection device against dry running. The device should protect the motor against Dry running. The device should be suitable for any auxillary device and have provisions for mounting in panel boards. Operate without need of any auxiliary supply
Supply, delivey and fixing of FUSE UNITS (ANCHOR /EQUIVALENT)
63 Amps Porcelain fuse unit (500 V)
100 Amps Porcelain fuse unit (500 V)
200 Amps Porcelain fuse unit (500 V)
Supply, delivey and fixing of CHANGE OVER SWITCHES
100 Amps three phase 500 V 4 pole Change over switch
Supply, delivey and fixing of PVC INSULATED SINGLE CORE MULTI STRAND FIRE RETARDANT FLEXIBLE COPPER CABLE WITH ISI MARK CONFORMING TO IS
Supply, delivey and fixing of HRC - FUSES - HIGHER END
HRC - 16 Amps
HRC - 32 Amps
HRC - 63 Amps
HRC - 125 Amps
Supply and delivery of the following Electrical Works :consumable items at the site of work to carryout the general maintenace works
Voltmeter Digital - Three Phase Class 1-AC
Ammeter Digital - Three Phase Class 1-1A
20W 4 Feet LED Fitting with LED (Higher end)
LED OUTDOOR FITTINGS (LIGHT EMITTING DIODE) LOWER END 25W LED Street Light Fitting with LED
Supply and delivery of the following consumable items for Pump Set repairs at the site of work to carryout the general maintenace works
50mm GM Gate valve
80mm GM Gate valve
R I Sheet
Bolts and Nuts - All sizes
50mm GI Pipe
80mm GI Pipe
Supply, delivery and fixing of DI D/F Gate sluice/scour valves (soft seated) resilient seated soft sealing Gate Valves(Sluice Valves) with body Bonnet of Ductile cast iron of Grade GGG 40 or equivalent grade, Wedge fully rubber lined with EPDM replaceable spindle nut without gland packing and with 3 O- Ring protection on the shaft and seals of NBR and the valves should be of Vacuum tight and 100% leak proof with face to face dimensions as per BS 5163- 89/ISI 14846-2000/DIN 3202 F4. All the valves should be with electrostatic powder coating both inside and out side with pocket less straight through body passage. All the valves are to be compatible for buried application with pressure rating PN 10/16 and with 5 years warranty.
100mm DI Gate Valve
Manufacture, Supply and Delivery of Tamper proof DI single chamber double orifice triple function (ventilating, admiting & ventilating during operation) air release valve with pressure rating PN 10/16 with body and cover made of Ductile Iron of Grade GGG 40 or GGG 50, conforming to IS 1865 with Food Grade Epoxy Powder coating (EP-P) inside and for outside of colour blue RAL 5005. All internal parts such as float, shell etc., cover bolts, made of Austenitic alloy steel of SS AISI 304/316. The float shall be made of Polytetrafluroethylene/ Austenitic alloy steel of AISI 304/316. Gaskets and seals of EPDM / Neoprene rubber for TWAD Board works anywhere in Tamil Nadu and with 5 years warranty
Supply, delivey and fixing of C.I. DOUBLE AIR VALVE AS PER ISI 14845/2000 AND WITH 5 YEARS WARRANTY
50mm CI Air Valve
SUMP CLEANING
Cleaning of all storage points like sumps, elevated reservoirs of various capacities available in this scheme at a frequency of once in two months including scrapping the inner side of compartment completely, scouring / dewatering / desilting using required machineries, materials, labour and all other incidental charges, application of bleaching powder/ solution etc complete.
For 15001 to 30000 lit cap sump
Desilting light or sandysoil or silt from collection well below water level including the charges for special tools & plants and air compressor etc complete
Bleaching powder of 34% concentration as per standard specification.
COMBINED WATER SUPPLY SCHEME TO CHITHATHUR AND 14 OTHER HABITATIONS IN VEMBAKKAM UNION OF TIRUVANNAMALAI DISTRICT
Operation and Maintenance of the Electro Mechanical installations, equipments, components, pipelines valves and appurtenances, water retaining structures including protecton of all schemee components from damages/ theft undertaking legal actions for such untoward incidents, preventive maintenance, disinfection and deliverance of water as per quality standards and supply of earmarked quantity of water to the beneficiaries as per Annexure .........., carrying out the O&M as per standard operating procedures, Acts and rules in force and as directed by TWAD Board Oficers and excluding cost towards attending leak, burst repair and replacement works to electro mechanical installations consumables for disinfection of water, cleaning of all water retaining structure, electricity .
Repair & Renewals and Leak & Bursts :
Attending Leaks in the PVC pipelines of this CWSS for the following items, as per the standard procedure including earthwork excavation, dewatering, removing, relaying, jointing, civil works, cost of materials and all other incidental charges, etc complete within the stipulated time limit as directed by the TWAD Board officers.
PVC 4 KSC Pipes_Minor Leak
63mm OD PVC 4 KSC pipes_Minor Leak
75mm OD PVC 4 KSC pipes_Minor Leak
90mm OD PVC 4 KSC pipes_Minor Leak
110mm OD PVC 4 KSC pipes_Minor Leak
140mm OD PVC 4 KSC pipes_Minor Leak
160mm OD PVC 4 KSC pipes_Minor Leak
PVC 4 KSC Pipes_Major Leak
63mm OD PVC 4 KSC pipes_Major Leak
75mm OD PVC 4 KSC pipes_Major Leak
90mm OD PVC 4 KSC pipes_Major Leak
110mm OD PVC 4 KSC pipes_Major Leak
140mm OD PVC 4 KSC pipes_Major Leak
160mm OD PVC 4 KSC pipes_Major Leak
Attending Leaks/Bursts in the HDPE pipelines of this CWSS for the following items, as per the standard procedure including earthwork excavation, dewatering, removing, relaying, jointing by Electro fusion/butt Joint, civil works, cost of materials and all other incidental charges, etc complete within the stipulated time limit as directed by the TWAD Board officers.
HDPE PN 6 Pipes_Minor Leaks
75mm HDPE PN 6 pipes_Minor Leak
90mm HDPE PN 6 pipes_Minor Leak
110mm HDPE PN 6 pipes_Minor Leak
140mm HDPE PN 6 pipes_Minor Leak
HDPE PN 6 Pipes_Major Leaks
75mm HDPE PN 6 pipes_Major Leak
90mm HDPE PN 6 pipes_Major Leak
110mm HDPE PN 6 pipes_Major Leak
140mm HDPE PN 6 pipes_Major Leak
Attending leaks and bursts in GI pipes of various sizes including Supply and delivery of following G I PIPES (MEDIUM) AS PER IS 1239/PART I/2004 and Lowering GI pipes and specials in the trenches and laying to proper grade and alignment, jointing with GI Specials and as directed by the TWAD Officers
50mm GI Pipe leak above GL
65mm GI Pipe leak above GL
80mm GI Pipe leak above GL
100mm GI Pipe leak above GL
125mm GI Pipe leak above GL
Attending joint (Collar) Leaks in the AC pipelines of this CWSS for the following items, as per the standard procedure including earthwork excavation, dewatering, removing, relaying, jointing, civil works, cost of materials and all incidental charges, etc complete within the stipulated time limit as specified in Clause 2.6.4 of General conditions of Contract
AC Pipe_Collar Leak
150mm AC_Collar Leak
AC Pipe_Minor Leak centre crack
150mm AC Pipe_MS Cut Barrel
Labour for cutting open B.T. Roads (or) Maccadam road for laying water mains - 15 cm thick (SOR VOL II P.195)
For all size Pumping mains
Road Restoration with PCC 1:2:4 using 20 mm HBGS for the Concrete Road cut Portion after the pipes are laid, joined and tested complete and as directed by TWAD Board Officers - 15 cm thick
For all size Pumping mains
MATERIALS
Supply and delivery of following sizes of HDPE PIPES - PE 100 AS PER IS 4984/2016 (Pre-Compounded Resin) inclusive of transportation charges to stockyard excluding unloading anywhere in Tamilnadu etc, complete and as directed by the TWAD Board officers. (SOR VOL II P.14)
160mm HDPE PN 6
140mm HDPE PN 6
125mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
75mm HDPE PN 6
63mm HDPE PN 6
CIVIL WORKS
Earth work excavation and depositing on bank with initial lead of 10 m and initial lift of 2m in narrow trenches for laying of pipes for water supply in the following types of soil
Hard stiff clay, stiff black cotton, hard red earth, shales, murrum gravel, stoney earth and earth mixed with small size boulders and hard gravelly soil. (SOR VOL II P.192)
160mm HDPE PN 6
140mm HDPE PN 6
125mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
75mm HDPE PN 6
63mm HDPE PN 6
Lowering HDPE pipes and specials to trench and laying to proper grade and alignment and as directed by the TWAD Officers. (SOR VOL II P.171)
160mm HDPE PN 6
140mm HDPE PN 6
125mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
75mm HDPE PN 6
63mm HDPE PN 6
Jointing HDPE Pipes and Specials by butt fusion welding / electro fusion welding joints using fusion equipment as per ISO 21307-2011 and as per IS 7634 (part-2) : 2012 including cost of hire charges for butt fusion equipment power supply arrangements etc., complete as per directed by TWAD Board Officers. (SOR VOL II P.184)
160mm HDPE PN 6
140mm HDPE PN 6
125mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
75mm HDPE PN 6
63mm HDPE PN 6
Refiling with excavated sand or other loose soil complying with standerd specification in layers of 15 cm thick well rammed and consolidated after pipes and specials are laid and tested. (SOR VOL II P.192)
160mm HDPE PN 6
140mm HDPE PN 6
125mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
75mm HDPE PN 6
63mm HDPE PN 6
Pumpsets
Carrying out the following repair works occuring during the maintenance period in the Electrical, Mechanical and Elctro-mechanical items to bring back the scheme / components into normal running conditition as per standard specification including all labour charges, cost of materials and all incidental charges within the stipulated time limit etc., complete as specified in Clause 2.8 of General conditions of Contract Part II etc as directed by TWAD Board officers
Attending the Rewinding, Repair and Renewal works in various capacity Open Well Submersible Pumpsets
Removing the Submersible pumpset by using tripod set after disconnecting the power supply cable and delivery pipe line fittings
5HP -OWS
15HP -OWS
Transporting the pumpset from Pump House to work shop.
5HP -OWS
15HP -OWS
Rewinding the submersible motor using best quality winding wire including cost of wire, Sleeve, other insulating and fibre class materials after deducting the cost of old materials.
5HP -OWS
15HP -OWS
Reconditioning the worn-out shaft and fittings, impeller and Gun Metal/ SS Bushes including cost of lath work & labour charges etc.,
5HP -OWS
15HP -OWS
Replacement of carbon type thrust bearing and pumpside Gun Metal Bush including cost of labour charges after deducting the cost of old material
5HP -OWS
15HP -OWS
Transporting charges for Submersible pumpset from work shop to Pump House after attending repair works.
5HP -OWS
15HP -OWS
Re-erection of pumpset in the Sump / Well by using tripod set and required Rubber washer and Bolt & Nuts and connecting the power supply cable and delivery pipeline arrangements testing to trial pumping.
5HP -OWS
15HP -OWS
SUPPLY AND DELIVERY OF SERVICE CONNECTION ACCESSORIES L.T. 1100V PVC ALUMINIUM ARMOURED UNDER GROUND CABLE WITH ISI MARK
25 Sq.mm 3.5 Core
35 Sq.mm 3.5 Core
50 Sq.mm 3.5 Core
SUPPLY AND DELIVERY OF L.T. CABLES following size sq mm 3 CORE 1.1 KV GRADE ARMOURED ALUMINIUM CONDUCTOR CROSS LINKED POLY ETHYLENE INSULATED PVC SHEATHED CABLES CONFORMING TO IS 7098 (PART I)/1988 WITH ISI MARKING
50 Sq.mm 3 Core
70 Sq.mm 3Core
SUPPLY AND DELIVERY OF PVC INSULATED AND SHEATHED following sq mm 3 CORE FLAT TYPE COPPER CABLE CONFORMING TO IS 694/1989
SUPPLY AND DELIVERY OF 150mm dia Pressure Gauge and Vaccum guage including all accessories as per specification (For Suction and Delivery to be mounted on wall on Teak Wood Board)
Supply, delivey and fixing of MOULDED CASE CIRCUIT BREAKER (MCCB) WITH THERMO MAGNETIC RELEASE - 4 Pole
Range - 63/100A
Range - 125A
Supply, delivey and fixing of RATE FOR MIXED DI-ELECTRIC CAPACITOR WITH TNEB TEST CERTIFICATE WITH ACCESSORIES INCLUDING BANKING CONFORMIING TO IS 2834.
Supply, delivey and fixing of Electro magnetic contactors of suitable capacity in AC Three Phase rating, conforming to IS/IEC 60947-4-1.
Supply, delivey and fixing of Overload Relays: Directly operated Bimetallic Thermal overload relay which operates in case of overload and also in case of under voltage with manual and auto reset mode.
Supply, delivey and fixing of Preventer – Single Phasing - Electric Motor protection device against single phasing. The device should protect the motor against single phasing, reverse phasing and unbalance supply. The device should be suitable for any auxillary device and have provisions for mounting in panel boards. Operate without need of any auxiliary supply.
Electric Motor protection device against dry running. The device should protect the motor against Dry running. The device should be suitable for any auxillary device and have provisions for mounting in panel boards. Operate without need of any auxiliary supply
Supply, delivey and fixing of FUSE UNITS (ANCHOR /EQUIVALENT)
63 Amps Porcelain fuse unit (500 V)
100 Amps Porcelain fuse unit (500 V)
200 Amps Porcelain fuse unit (500 V)
Supply, delivey and fixing of CHANGE OVER SWITCHES
100 Amps three phase 500 V 4 pole Change over switch
Supply, delivey and fixing of PVC INSULATED SINGLE CORE MULTI STRAND FIRE RETARDANT FLEXIBLE COPPER CABLE WITH ISI MARK CONFORMING TO IS
Supply, delivey and fixing of HRC - FUSES - HIGHER END
HRC - 16 Amps
HRC - 32 Amps
HRC - 63 Amps
HRC - 125 Amps
Supply and delivery of the following Electrical Works :consumable items at the site of work to carryout the general maintenace works
Voltmeter Digital - Three Phase Class 1-AC
Ammeter Digital - Three Phase Class 1-1A
20W 4 Feet LED Fitting with LED (Higher end)
LED OUTDOOR FITTINGS (LIGHT EMITTING DIODE) LOWER END 25W LED Street Light Fitting with LED
Supply and delivery of the following consumable items for Pump Set repairs at the site of work to carryout the general maintenace works
50mm GM Gate valve
80mm GM Gate valve
R I Sheet
Bolts and Nuts - All sizes
50mm GI Pipe
80mm GI Pipe
100mm GI pipe
Supply, delivey and fixing of C.I. DOUBLE AIR VALVE AS PER ISI 14845/2000 AND WITH 5 YEARS WARRANTY
50mm CI Air Valve
SUMP CLEANING
Cleaning of all storage points like sumps, elevated reservoirs of various capacities available in this scheme at a frequency of once in two months including scrapping the inner side of compartment completely, scouring / dewatering / desilting using required machineries, materials, labour and all other incidental charges, application of bleaching powder/ solution etc complete.
For 15001 to 30000 lit cap sump
Desilting light or sandysoil or silt from collection well below water level including the charges for special tools & plants and air compressor etc complete
Bleaching powder of 34% concentration as per standard specification.
COMBINED WATER SUPPLY SCHEME TO CHITHAMOOR AND 27 OTHER HABITATIONS IN IN ANAKKAVUR UNION OF TIRUVANNAMALAI DISTRICT
Operation and Maintenance of the Electro Mechanical installations, equipments, components, pipelines valves and appurtenances, water retaining structures including protecton of all schemee components from damages/ theft undertaking legal actions for such untoward incidents, preventive maintenance, disinfection and deliverance of water as per quality standards and supply of earmarked quantity of water to the beneficiaries as per Annexure .........., carrying out the O&M as per standard operating procedures, Acts and rules in force and as directed by TWAD Board Oficers and excluding cost towards attending leak, burst repair and replacement works to electro mechanical installations consumables for disinfection of water, cleaning of all water retaining structure, electricity .
Repair & Renewals and Leak & Bursts :
Attending Leaks in the PVC pipelines of this CWSS for the following items, as per the standard procedure including earthwork excavation, dewatering, removing, relaying, jointing, civil works, cost of materials and all other incidental charges, etc complete within the stipulated time limit as directed by the TWAD Board officers.
PVC 4 KSC Pipes_Minor Leak
63mm OD PVC 4 KSC pipes_Minor Leak
75mm OD PVC 4 KSC pipes_Minor Leak
90mm OD PVC 4 KSC pipes_Minor Leak
110mm OD PVC 4 KSC pipes_Minor Leak
140mm OD PVC 4 KSC pipes_Minor Leak
160mm OD PVC 4 KSC pipes_Minor Leak
PVC 4 KSC Pipes_Major Leak
63mm OD PVC 4 KSC pipes_Major Leak
75mm OD PVC 4 KSC pipes_Major Leak
90mm OD PVC 4 KSC pipes_Major Leak
110mm OD PVC 4 KSC pipes_Major Leak
140mm OD PVC 4 KSC pipes_Major Leak
160mm OD PVC 4 KSC pipes_Major Leak
Attending Leaks/Bursts in the HDPE pipelines of this CWSS for the following items, as per the standard procedure including earthwork excavation, dewatering, removing, relaying, jointing by Electro fusion/butt Joint, civil works, cost of materials and all other incidental charges, etc complete within the stipulated time limit as directed by the TWAD Board officers.
HDPE PN 6 Pipes_Minor Leaks
63mm HDPE PN 6 pipes_Minor Leak
HDPE PN 6 Pipes_Major Leaks
63mm HDPE PN 6 pipes_Major Leak
Attending leaks and bursts in GI pipes of various sizes including Supply and delivery of following G I PIPES (MEDIUM) AS PER IS 1239/PART I/2004 and Lowering GI pipes and specials in the trenches and laying to proper grade and alignment, jointing with GI Specials and as directed by the TWAD Officers
50mm GI Pipe leak above GL
65mm GI Pipe leak above GL
80mm GI Pipe leak above GL
100mm GI Pipe leak above GL
Labour for cutting open B.T. Roads (or) Maccadam road for laying water mains - 15 cm thick (SOR VOL II P.195)
For all size Pumping mains
Road Restoration with PCC 1:2:4 using 20 mm HBGS for the Concrete Road cut Portion after the pipes are laid, joined and tested complete and as directed by TWAD Board Officers - 15 cm thick
For all size Pumping mains
MATERIALS
Supply and delivery of following sizes of HDPE PIPES - PE 100 AS PER IS 4984/2016 (Pre-Compounded Resin) inclusive of transportation charges to stockyard excluding unloading anywhere in Tamilnadu etc, complete and as directed by the TWAD Board officers. (SOR VOL II P.14)
160mm HDPE PN 6
140mm HDPE PN 6
125mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
75mm HDPE PN 6
63mm HDPE PN 6
CIVIL WORKS
Earth work excavation and depositing on bank with initial lead of 10 m and initial lift of 2m in narrow trenches for laying of pipes for water supply in the following types of soil
Hard stiff clay, stiff black cotton, hard red earth, shales, murrum gravel, stoney earth and earth mixed with small size boulders and hard gravelly soil. (SOR VOL II P.192)
160mm HDPE PN 6
140mm HDPE PN 6
125mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
75mm HDPE PN 6
63mm HDPE PN 6
Lowering HDPE pipes and specials to trench and laying to proper grade and alignment and as directed by the TWAD Officers. (SOR VOL II P.171)
160mm HDPE PN 6
140mm HDPE PN 6
125mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
75mm HDPE PN 6
63mm HDPE PN 6
Jointing HDPE Pipes and Specials by butt fusion welding / electro fusion welding joints using fusion equipment as per ISO 21307-2011 and as per IS 7634 (part-2) : 2012 including cost of hire charges for butt fusion equipment power supply arrangements etc., complete as per directed by TWAD Board Officers. (SOR VOL II P.184)
160mm HDPE PN 6
140mm HDPE PN 6
125mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
75mm HDPE PN 6
63mm HDPE PN 6
Refiling with excavated sand or other loose soil complying with standerd specification in layers of 15 cm thick well rammed and consolidated after pipes and specials are laid and tested. (SOR VOL II P.192)
160mm HDPE PN 6
140mm HDPE PN 6
125mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
75mm HDPE PN 6
63mm HDPE PN 6
Pumpsets
Carrying out the following repair works occuring during the maintenance period in the Electrical, Mechanical and Elctro-mechanical items to bring back the scheme / components into normal running conditition as per standard specification including all labour charges, cost of materials and all incidental charges within the stipulated time limit etc., complete as specified in Clause 2.8 of General conditions of Contract Part II etc as directed by TWAD Board officers
Attending the Rewinding, Repair and Renewal works in various capacity Open Well Submersible Pumpsets
Removing the Submersible pumpset by using tripod set after disconnecting the power supply cable and delivery pipe line fittings
3HP -OWS
5HP -OWS
7.5HP -OWS
Transporting the pumpset from Pump House to work shop.
3HP -OWS
5HP -OWS
7.5HP -OWS
Rewinding the submersible motor using best quality winding wire including cost of wire, Sleeve, other insulating and fibre class materials after deducting the cost of old materials.
3HP -OWS
5HP -OWS
7.5HP -OWS
Reconditioning the worn-out shaft and fittings, impeller and Gun Metal/ SS Bushes including cost of lath work & labour charges etc.,
3HP -OWS
5HP -OWS
7.5HP -OWS
Replacement of carbon type thrust bearing and pumpside Gun Metal Bush including cost of labour charges after deducting the cost of old material
3HP -OWS
5HP -OWS
7.5HP -OWS
Transporting charges for Submersible pumpset from work shop to Pump House after attending repair works.
3HP -OWS
5HP -OWS
7.5HP -OWS
Re-erection of pumpset in the Sump / Well by using tripod set and required Rubber washer and Bolt & Nuts and connecting the power supply cable and delivery pipeline arrangements testing to trial pumping.
3HP -OWS
5HP -OWS
7.5HP -OWS
SUPPLY AND DELIVERY OF SERVICE CONNECTION ACCESSORIES L.T. 1100V PVC ALUMINIUM ARMOURED UNDER GROUND CABLE WITH ISI MARK
25 Sq.mm 3.5 Core
35 Sq.mm 3.5 Core
50 Sq.mm 3.5 Core
SUPPLY AND DELIVERY OF L.T. CABLES following size sq mm 3 CORE 1.1 KV GRADE ARMOURED ALUMINIUM CONDUCTOR CROSS LINKED POLY ETHYLENE INSULATED PVC SHEATHED CABLES CONFORMING TO IS 7098 (PART I)/1988 WITH ISI MARKING
35 Sq.mm 3 Core
SUPPLY AND DELIVERY OF PVC INSULATED AND SHEATHED following sq mm 3 CORE FLAT TYPE COPPER CABLE CONFORMING TO IS 694/1989
SUPPLY AND DELIVERY OF 150mm dia Pressure Gauge and Vaccum guage including all accessories as per specification (For Suction and Delivery to be mounted on wall on Teak Wood Board)
Supply, delivey and fixing of MOULDED CASE CIRCUIT BREAKER (MCCB) WITH THERMO MAGNETIC RELEASE - 4 Pole
Range - 63/100A
Range - 125A
Supply, delivey and fixing of RATE FOR MIXED DI-ELECTRIC CAPACITOR WITH TNEB TEST CERTIFICATE WITH ACCESSORIES INCLUDING BANKING CONFORMIING TO IS 2834.
Supply, delivey and fixing of Electro magnetic contactors of suitable capacity in AC Three Phase rating, conforming to IS/IEC 60947-4-1.
Supply, delivey and fixing of Overload Relays: Directly operated Bimetallic Thermal overload relay which operates in case of overload and also in case of under voltage with manual and auto reset mode.
Supply, delivey and fixing of Preventer – Single Phasing - Electric Motor protection device against single phasing. The device should protect the motor against single phasing, reverse phasing and unbalance supply. The device should be suitable for any auxillary device and have provisions for mounting in panel boards. Operate without need of any auxiliary supply.
Electric Motor protection device against dry running. The device should protect the motor against Dry running. The device should be suitable for any auxillary device and have provisions for mounting in panel boards. Operate without need of any auxiliary supply
Supply, delivey and fixing of FUSE UNITS (ANCHOR /EQUIVALENT)
63 Amps Porcelain fuse unit (500 V)
100 Amps Porcelain fuse unit (500 V)
200 Amps Porcelain fuse unit (500 V)
Supply, delivey and fixing of CHANGE OVER SWITCHES
16 Amps three phase 500 V 4 pole Change over switch
32 Amps three phase 500 V 4 pole Change over switch
63 Amps three phase 500 V 4 pole Change over switch
100 Amps three phase 500 V 4 pole Change over switch
Supply, delivey and fixing of PVC INSULATED SINGLE CORE MULTI STRAND FIRE RETARDANT FLEXIBLE COPPER CABLE WITH ISI MARK CONFORMING TO IS
Supply, delivey and fixing of HRC - FUSES - HIGHER END
HRC - 16 Amps
HRC - 32 Amps
HRC - 63 Amps
HRC - 125 Amps
Supply and delivery of the following Electrical Works :consumable items at the site of work to carryout the general maintenace works
Voltmeter Digital - Three Phase Class 1-AC
Ammeter Digital - Three Phase Class 1-1A
20W 4 Feet LED Fitting with LED (Higher end)
LED OUTDOOR FITTINGS (LIGHT EMITTING DIODE) LOWER END 25W LED Street Light Fitting with LED
Supply and delivery of the following consumable items for Pump Set repairs at the site of work to carryout the general maintenace works
50mm GM Gate valve
80mm GM Gate valve
R I Sheet
Bolts and Nuts - All sizes
50mm GI Pipe
65mm GI Pipe
80mm GI Pipe
100mm GI pipe
Supply, delivery and fixing of DI D/F Gate sluice/scour valves (soft seated) resilient seated soft sealing Gate Valves(Sluice Valves) with body Bonnet of Ductile cast iron of Grade GGG 40 or equivalent grade, Wedge fully rubber lined with EPDM replaceable spindle nut without gland packing and with 3 O- Ring protection on the shaft and seals of NBR and the valves should be of Vacuum tight and 100% leak proof with face to face dimensions as per BS 5163- 89/ISI 14846-2000/DIN 3202 F4. All the valves should be with electrostatic powder coating both inside and out side with pocket less straight through body passage. All the valves are to be compatible for buried application with pressure rating PN 10/16 and with 5 years warranty.
100mm DI Gate Valve
Supply, delivey and fixing of C.I. DOUBLE AIR VALVE AS PER ISI 14845/2000 AND WITH 5 YEARS WARRANTY
50mm CI Air Valve
SUMP CLEANING
Cleaning of all storage points like sumps, elevated reservoirs of various capacities available in this scheme at a frequency of once in two months including scrapping the inner side of compartment completely, scouring / dewatering / desilting using required machineries, materials, labour and all other incidental charges, application of bleaching powder/ solution etc complete.
For 30001 to 45000 lit cap sump
For 125001 to 150000 lit cap sump
Desilting light or sandysoil or silt from collection well below water level including the charges for special tools & plants and air compressor etc complete
Bleaching powder of 34% concentration as per standard specification.
COMBINED WATER SUPPLY SCHEME TO ERAIYUR AND 10 OTHER HABITATIONS IN CHEYYAR UNION OF TIRUVANNAMALAI DISTRICT
Operation and Maintenance of the Electro Mechanical installations, equipments, components, pipelines valves and appurtenances, water retaining structures including protecton of all schemee components from damages/ theft undertaking legal actions for such untoward incidents, preventive maintenance, disinfection and deliverance of water as per quality standards and supply of earmarked quantity of water to the beneficiaries as per Annexure .........., carrying out the O&M as per standard operating procedures, Acts and rules in force and as directed by TWAD Board Oficers and excluding cost towards attending leak, burst repair and replacement works to electro mechanical installations consumables for disinfection of water, cleaning of all water retaining structure, electricity .
Repair & Renewals and Leak & Bursts :
Attending Leaks in the PVC pipelines of this CWSS for the following items, as per the standard procedure including earthwork excavation, dewatering, removing, relaying, jointing, civil works, cost of materials and all other incidental charges, etc complete within the stipulated time limit as directed by the TWAD Board officers.
PVC 4 KSC Pipes_Minor Leak
90mm OD PVC 4 KSC pipes_Minor Leak
110mm OD PVC 4 KSC pipes_Minor Leak
140mm OD PVC 4 KSC pipes_Minor Leak
PVC 4 KSC Pipes_Major Leak
90mm OD PVC 4 KSC pipes_Major Leak
110mm OD PVC 4 KSC pipes_Major Leak
140mm OD PVC 4 KSC pipes_Major Leak
Attending Leaks/Bursts in the HDPE pipelines of this CWSS for the following items, as per the standard procedure including earthwork excavation, dewatering, removing, relaying, jointing by Electro fusion/butt Joint, civil works, cost of materials and all other incidental charges, etc complete within the stipulated time limit as directed by the TWAD Board officers.
HDPE PN 6 Pipes_Minor Leaks
90mm HDPE PN 6 pipes_Minor Leak
HDPE PN 6 Pipes_Major Leaks
90mm HDPE PN 6 pipes_Major Leak
Attending leaks and bursts in GI pipes of various sizes including Supply and delivery of following G I PIPES (MEDIUM) AS PER IS 1239/PART I/2004 and Lowering GI pipes and specials in the trenches and laying to proper grade and alignment, jointing with GI Specials and as directed by the TWAD Officers
50mm GI Pipe leak above GL
80mm GI Pipe leak above GL
100mm GI Pipe leak above GL
Labour for cutting open B.T. Roads (or) Maccadam road for laying water mains - 15 cm thick (SOR VOL II P.195)
For all size Pumping mains
Road Restoration with PCC 1:2:4 using 20 mm HBGS for the Concrete Road cut Portion after the pipes are laid, joined and tested complete and as directed by TWAD Board Officers - 15 cm thick
For all size Pumping mains
MATERIALS
Supply and delivery of following sizes of HDPE PIPES - PE 100 AS PER IS 4984/2016 (Pre-Compounded Resin) inclusive of transportation charges to stockyard excluding unloading anywhere in Tamilnadu etc, complete and as directed by the TWAD Board officers. (SOR VOL II P.14)
140mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
CIVIL WORKS
Earth work excavation and depositing on bank with initial lead of 10 m and initial lift of 2m in narrow trenches for laying of pipes for water supply in the following types of soil
Hard stiff clay, stiff black cotton, hard red earth, shales, murrum gravel, stoney earth and earth mixed with small size boulders and hard gravelly soil. (SOR VOL II P.192)
140mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
Lowering HDPE pipes and specials to trench and laying to proper grade and alignment and as directed by the TWAD Officers. (SOR VOL II P.171)
140mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
Jointing HDPE Pipes and Specials by butt fusion welding / electro fusion welding joints using fusion equipment as per ISO 21307-2011 and as per IS 7634 (part-2) : 2012 including cost of hire charges for butt fusion equipment power supply arrangements etc., complete as per directed by TWAD Board Officers. (SOR VOL II P.184)
140mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
Refiling with excavated sand or other loose soil complying with standerd specification in layers of 15 cm thick well rammed and consolidated after pipes and specials are laid and tested. (SOR VOL II P.192)
140mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
Pumpsets
Carrying out the following repair works occuring during the maintenance period in the Electrical, Mechanical and Elctro-mechanical items to bring back the scheme / components into normal running conditition as per standard specification including all labour charges, cost of materials and all incidental charges within the stipulated time limit etc., complete as specified in Clause 2.8 of General conditions of Contract Part II etc as directed by TWAD Board officers
Attending the Rewinding, Repair and Renewal works in various capacity Open Well Submersible Pumpsets
Removing the Submersible pumpset by using tripod set after disconnecting the power supply cable and delivery pipe line fittings
3HP -OWS
5HP -OWS
15HP -OWS
Transporting the pumpset from Pump House to work shop.
3HP -OWS
5HP -OWS
15HP -OWS
Rewinding the submersible motor using best quality winding wire including cost of wire, Sleeve, other insulating and fibre class materials after deducting the cost of old materials.
3HP -OWS
5HP -OWS
15HP -OWS
Reconditioning the worn-out shaft and fittings, impeller and Gun Metal/ SS Bushes including cost of lath work & labour charges etc.,
3HP -OWS
5HP -OWS
15HP -OWS
Replacement of carbon type thrust bearing and pumpside Gun Metal Bush including cost of labour charges after deducting the cost of old material
3HP -OWS
5HP -OWS
15HP -OWS
Transporting charges for Submersible pumpset from work shop to Pump House after attending repair works.
3HP -OWS
5HP -OWS
15HP -OWS
Re-erection of pumpset in the Sump / Well by using tripod set and required Rubber washer and Bolt & Nuts and connecting the power supply cable and delivery pipeline arrangements testing to trial pumping.
3HP -OWS
5HP -OWS
15HP -OWS
SUPPLY AND DELIVERY OF SERVICE CONNECTION ACCESSORIES L.T. 1100V PVC ALUMINIUM ARMOURED UNDER GROUND CABLE WITH ISI MARK
25 Sq.mm 3.5 Core
35 Sq.mm 3.5 Core
50 Sq.mm 3.5 Core
SUPPLY AND DELIVERY OF L.T. CABLES following size sq mm 3 CORE 1.1 KV GRADE ARMOURED ALUMINIUM CONDUCTOR CROSS LINKED POLY ETHYLENE INSULATED PVC SHEATHED CABLES CONFORMING TO IS 7098 (PART I)/1988 WITH ISI MARKING
25 Sq.mm 3 Core
35 Sq.mm 3 Core
70 Sq.mm 3Core
SUPPLY AND DELIVERY OF PVC INSULATED AND SHEATHED following sq mm 3 CORE FLAT TYPE COPPER CABLE CONFORMING TO IS 694/1989
SUPPLY AND DELIVERY OF 150mm dia Pressure Gauge and Vaccum guage including all accessories as per specification (For Suction and Delivery to be mounted on wall on Teak Wood Board)
Supply, delivey and fixing of MOULDED CASE CIRCUIT BREAKER (MCCB) WITH THERMO MAGNETIC RELEASE - 4 Pole
Range - 63/100A
Range - 125A
Supply, delivey and fixing of RATE FOR MIXED DI-ELECTRIC CAPACITOR WITH TNEB TEST CERTIFICATE WITH ACCESSORIES INCLUDING BANKING CONFORMIING TO IS 2834.
Supply, delivey and fixing of Electro magnetic contactors of suitable capacity in AC Three Phase rating, conforming to IS/IEC 60947-4-1.
Supply, delivey and fixing of Overload Relays: Directly operated Bimetallic Thermal overload relay which operates in case of overload and also in case of under voltage with manual and auto reset mode.
Supply, delivey and fixing of Preventer – Single Phasing - Electric Motor protection device against single phasing. The device should protect the motor against single phasing, reverse phasing and unbalance supply. The device should be suitable for any auxillary device and have provisions for mounting in panel boards. Operate without need of any auxiliary supply.
Electric Motor protection device against dry running. The device should protect the motor against Dry running. The device should be suitable for any auxillary device and have provisions for mounting in panel boards. Operate without need of any auxiliary supply
Supply, delivey and fixing of FUSE UNITS (ANCHOR /EQUIVALENT)
100 Amps Porcelain fuse unit (500 V)
200 Amps Porcelain fuse unit (500 V)
Supply, delivey and fixing of CHANGE OVER SWITCHES
32 Amps three phase 500 V 4 pole Change over switch
63 Amps three phase 500 V 4 pole Change over switch
100 Amps three phase 500 V 4 pole Change over switch
200 Amps three phase 500 V 4 pole Change over switch
Supply, delivey and fixing of PVC INSULATED SINGLE CORE MULTI STRAND FIRE RETARDANT FLEXIBLE COPPER CABLE WITH ISI MARK CONFORMING TO IS
Supply, delivey and fixing of HRC - FUSES - HIGHER END
HRC - 16 Amps
HRC - 32 Amps
HRC - 63 Amps
HRC - 125 Amps
Supply and delivery of the following Electrical Works :consumable items at the site of work to carryout the general maintenace works
Voltmeter Digital - Three Phase Class 1-AC
Ammeter Digital - Three Phase Class 1-1A
20W 4 Feet LED Fitting with LED (Higher end)
LED OUTDOOR FITTINGS (LIGHT EMITTING DIODE) LOWER END 25W LED Street Light Fitting with LED
Supply and delivery of the following consumable items for Pump Set repairs at the site of work to carryout the general maintenace works
50mm GM Gate valve
80mm GM Gate valve
R I Sheet
Bolts and Nuts - All sizes
50mm GI Pipe
80mm GI Pipe
100mm GI pipe
Supply, delivery and fixing of DI D/F Gate sluice/scour valves (soft seated) resilient seated soft sealing Gate Valves(Sluice Valves) with body Bonnet of Ductile cast iron of Grade GGG 40 or equivalent grade, Wedge fully rubber lined with EPDM replaceable spindle nut without gland packing and with 3 O- Ring protection on the shaft and seals of NBR and the valves should be of Vacuum tight and 100% leak proof with face to face dimensions as per BS 5163- 89/ISI 14846-2000/DIN 3202 F4. All the valves should be with electrostatic powder coating both inside and out side with pocket less straight through body passage. All the valves are to be compatible for buried application with pressure rating PN 10/16 and with 5 years warranty.
100mm DI Gate Valve
Supply, delivey and fixing of C.I. DOUBLE AIR VALVE AS PER ISI 14845/2000 AND WITH 5 YEARS WARRANTY
50mm CI Air Valve
SUMP CLEANING
Cleaning of all storage points like sumps, elevated reservoirs of various capacities available in this scheme at a frequency of once in two months including scrapping the inner side of compartment completely, scouring / dewatering / desilting using required machineries, materials, labour and all other incidental charges, application of bleaching powder/ solution etc complete.
For 5000 to 15000 lit cap sump
For 30001 to 45000 lit cap sump
Desilting light or sandysoil or silt from collection well below water level including the charges for special tools & plants and air compressor etc complete
Bleaching powder of 34% concentration as per standard specification.
COMBINED WATER SUPPLY SCHEME TO KAZHIYUR AND 17 OTHER HABITATIONS IN CHEYYAR UNION OF TIRUVANNAMALAI DISTRICT
Operation and Maintenance of the Electro Mechanical installations, equipments, components, pipelines valves and appurtenances, water retaining structures including protecton of all schemee components from damages/ theft undertaking legal actions for such untoward incidents, preventive maintenance, disinfection and deliverance of water as per quality standards and supply of earmarked quantity of water to the beneficiaries as per Annexure .........., carrying out the O&M as per standard operating procedures, Acts and rules in force and as directed by TWAD Board Oficers and excluding cost towards attending leak, burst repair and replacement works to electro mechanical installations consumables for disinfection of water, cleaning of all water retaining structure, electricity .
Repair & Renewals and Leak & Bursts :
Attending Leaks in the PVC pipelines of this CWSS for the following items, as per the standard procedure including earthwork excavation, dewatering, removing, relaying, jointing, civil works, cost of materials and all other incidental charges, etc complete within the stipulated time limit as directed by the TWAD Board officers.
PVC 4 KSC Pipes_Minor Leak
63mm OD PVC 4 KSC pipes_Minor Leak
75mm OD PVC 4 KSC pipes_Minor Leak
90mm OD PVC 4 KSC pipes_Minor Leak
110mm OD PVC 4 KSC pipes_Minor Leak
140mm OD PVC 4 KSC pipes_Minor Leak
PVC 4 KSC Pipes_Major Leak
63mm OD PVC 4 KSC pipes_Major Leak
75mm OD PVC 4 KSC pipes_Major Leak
90mm OD PVC 4 KSC pipes_Major Leak
110mm OD PVC 4 KSC pipes_Major Leak
140mm OD PVC 4 KSC pipes_Major Leak
Attending Leaks/Bursts in the HDPE pipelines of this CWSS for the following items, as per the standard procedure including earthwork excavation, dewatering, removing, relaying, jointing by Electro fusion/butt Joint, civil works, cost of materials and all other incidental charges, etc complete within the stipulated time limit as directed by the TWAD Board officers.
HDPE PN 6 Pipes_Minor Leaks
75mm HDPE PN 6 pipes_Minor Leak
140mm HDPE PN 6 pipes_Minor Leak
160mm HDPE PN 6 pipes_Minor Leak
HDPE PN 6 Pipes_Major Leaks
75mm HDPE PN 6 pipes_Major Leak
140mm HDPE PN 6 pipes_Major Leak
160mm HDPE PN 6 pipes_Major Leak
Attending leaks and bursts in GI pipes of various sizes including Supply and delivery of following G I PIPES (MEDIUM) AS PER IS 1239/PART I/2004 and Lowering GI pipes and specials in the trenches and laying to proper grade and alignment, jointing with GI Specials and as directed by the TWAD Officers
50mm GI Pipe leak above GL
65mm GI Pipe leak above GL
80mm GI Pipe leak above GL
100mm GI Pipe leak above GL
Attending joint (Collar) Leaks in the AC pipelines of this CWSS for the following items, as per the standard procedure including earthwork excavation, dewatering, removing, relaying, jointing, civil works, cost of materials and all incidental charges, etc complete within the stipulated time limit as specified in Clause 2.6.4 of General conditions of Contract
AC Pipe_Collar Leak
150mm AC_Collar Leak
AC Pipe_Minor Leak centre crack
150mm AC Pipe_MS Cut Barrel
Labour for cutting open B.T. Roads (or) Maccadam road for laying water mains - 15 cm thick (SOR VOL II P.195)
For all size Pumping mains
Road Restoration with PCC 1:2:4 using 20 mm HBGS for the Concrete Road cut Portion after the pipes are laid, joined and tested complete and as directed by TWAD Board Officers - 15 cm thick
For all size Pumping mains
MATERIALS
Supply and delivery of following sizes of HDPE PIPES - PE 100 AS PER IS 4984/2016 (Pre-Compounded Resin) inclusive of transportation charges to stockyard excluding unloading anywhere in Tamilnadu etc, complete and as directed by the TWAD Board officers. (SOR VOL II P.14)
160mm HDPE PN 6
140mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
75mm HDPE PN 6
63mm HDPE PN 6
CIVIL WORKS
Earth work excavation and depositing on bank with initial lead of 10 m and initial lift of 2m in narrow trenches for laying of pipes for water supply in the following types of soil
Hard stiff clay, stiff black cotton, hard red earth, shales, murrum gravel, stoney earth and earth mixed with small size boulders and hard gravelly soil. (SOR VOL II P.192)
160mm HDPE PN 6
140mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
75mm HDPE PN 6
63mm HDPE PN 6
Lowering HDPE pipes and specials to trench and laying to proper grade and alignment and as directed by the TWAD Officers. (SOR VOL II P.171)
160mm HDPE PN 6
140mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
75mm HDPE PN 6
63mm HDPE PN 6
Jointing HDPE Pipes and Specials by butt fusion welding / electro fusion welding joints using fusion equipment as per ISO 21307-2011 and as per IS 7634 (part-2) : 2012 including cost of hire charges for butt fusion equipment power supply arrangements etc., complete as per directed by TWAD Board Officers. (SOR VOL II P.184)
160mm HDPE PN 6
140mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
75mm HDPE PN 6
63mm HDPE PN 6
Refiling with excavated sand or other loose soil complying with standerd specification in layers of 15 cm thick well rammed and consolidated after pipes and specials are laid and tested. (SOR VOL II P.192)
160mm HDPE PN 6
140mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
75mm HDPE PN 6
63mm HDPE PN 6
Pumpsets
Carrying out the following repair works occuring during the maintenance period in the Electrical, Mechanical and Elctro-mechanical items to bring back the scheme / components into normal running conditition as per standard specification including all labour charges, cost of materials and all incidental charges within the stipulated time limit etc., complete as specified in Clause 2.8 of General conditions of Contract Part II etc as directed by TWAD Board officers
Attending the Rewinding, Repair and Renewal works in various capacity Open Well Submersible Pumpsets
Removing the Submersible pumpset by using tripod set after disconnecting the power supply cable and delivery pipe line fittings
3HP -OWS
10HP -OWS
20HP -OWS
Transporting the pumpset from Pump House to work shop.
3HP -OWS
10HP -OWS
20HP -OWS
Rewinding the submersible motor using best quality winding wire including cost of wire, Sleeve, other insulating and fibre class materials after deducting the cost of old materials.
3HP -OWS
10HP -OWS
20HP -OWS
Reconditioning the worn-out shaft and fittings, impeller and Gun Metal/ SS Bushes including cost of lath work & labour charges etc.,
3HP -OWS
10HP -OWS
20HP -OWS
Replacement of carbon type thrust bearing and pumpside Gun Metal Bush including cost of labour charges after deducting the cost of old material
3HP -OWS
10HP -OWS
20HP -OWS
Transporting charges for Submersible pumpset from work shop to Pump House after attending repair works.
3HP -OWS
10HP -OWS
20HP -OWS
Re-erection of pumpset in the Sump / Well by using tripod set and required Rubber washer and Bolt & Nuts and connecting the power supply cable and delivery pipeline arrangements testing to trial pumping.
3HP -OWS
10HP -OWS
20HP -OWS
SUPPLY AND DELIVERY OF SERVICE CONNECTION ACCESSORIES L.T. 1100V PVC ALUMINIUM ARMOURED UNDER GROUND CABLE WITH ISI MARK
25 Sq.mm 3.5 Core
35 Sq.mm 3.5 Core
50 Sq.mm 3.5 Core
SUPPLY AND DELIVERY OF L.T. CABLES following size sq mm 3 CORE 1.1 KV GRADE ARMOURED ALUMINIUM CONDUCTOR CROSS LINKED POLY ETHYLENE INSULATED PVC SHEATHED CABLES CONFORMING TO IS 7098 (PART I)/1988 WITH ISI MARKING
25 Sq.mm 3 Core
50 Sq.mm 3 Core
SUPPLY AND DELIVERY OF PVC INSULATED AND SHEATHED following sq mm 3 CORE FLAT TYPE COPPER CABLE CONFORMING TO IS 694/1989
SUPPLY AND DELIVERY OF 150mm dia Pressure Gauge and Vaccum guage including all accessories as per specification (For Suction and Delivery to be mounted on wall on Teak Wood Board)
Supply, delivey and fixing of MOULDED CASE CIRCUIT BREAKER (MCCB) WITH THERMO MAGNETIC RELEASE - 4 Pole
Range - 63/100A
Range - 125A
Supply, delivey and fixing of RATE FOR MIXED DI-ELECTRIC CAPACITOR WITH TNEB TEST CERTIFICATE WITH ACCESSORIES INCLUDING BANKING CONFORMIING TO IS 2834.
Supply, delivey and fixing of Electro magnetic contactors of suitable capacity in AC Three Phase rating, conforming to IS/IEC 60947-4-1.
Supply, delivey and fixing of Overload Relays: Directly operated Bimetallic Thermal overload relay which operates in case of overload and also in case of under voltage with manual and auto reset mode.
Supply, delivey and fixing of Preventer – Single Phasing - Electric Motor protection device against single phasing. The device should protect the motor against single phasing, reverse phasing and unbalance supply. The device should be suitable for any auxillary device and have provisions for mounting in panel boards. Operate without need of any auxiliary supply.
Electric Motor protection device against dry running. The device should protect the motor against Dry running. The device should be suitable for any auxillary device and have provisions for mounting in panel boards. Operate without need of any auxiliary supply
Supply, delivey and fixing of FUSE UNITS (ANCHOR /EQUIVALENT)
63 Amps Porcelain fuse unit (500 V)
100 Amps Porcelain fuse unit (500 V)
200 Amps Porcelain fuse unit (500 V)
Supply, delivey and fixing of CHANGE OVER SWITCHES
100 Amps three phase 500 V 4 pole Change over switch
Supply, delivey and fixing of PVC INSULATED SINGLE CORE MULTI STRAND FIRE RETARDANT FLEXIBLE COPPER CABLE WITH ISI MARK CONFORMING TO IS
Supply, delivey and fixing of HRC - FUSES - HIGHER END
HRC - 16 Amps
HRC - 32 Amps
HRC - 63 Amps
HRC - 125 Amps
Supply and delivery of the following Electrical Works :consumable items at the site of work to carryout the general maintenace works
Voltmeter Digital - Three Phase Class 1-AC
Ammeter Digital - Three Phase Class 1-1A
20W 4 Feet LED Fitting with LED (Higher end)
LED OUTDOOR FITTINGS (LIGHT EMITTING DIODE) LOWER END 25W LED Street Light Fitting with LED
Supply and delivery of the following consumable items for Pump Set repairs at the site of work to carryout the general maintenace works
50mm GM Gate valve
80mm GM Gate valve
R I Sheet
Bolts and Nuts - All sizes
50mm GI Pipe
80mm GI Pipe
100mm GI pipe
Supply, delivery and fixing of DI D/F Gate sluice/scour valves (soft seated) resilient seated soft sealing Gate Valves(Sluice Valves) with body Bonnet of Ductile cast iron of Grade GGG 40 or equivalent grade, Wedge fully rubber lined with EPDM replaceable spindle nut without gland packing and with 3 O- Ring protection on the shaft and seals of NBR and the valves should be of Vacuum tight and 100% leak proof with face to face dimensions as per BS 5163- 89/ISI 14846-2000/DIN 3202 F4. All the valves should be with electrostatic powder coating both inside and out side with pocket less straight through body passage. All the valves are to be compatible for buried application with pressure rating PN 10/16 and with 5 years warranty.
100mm DI Gate Valve
Supply, delivey and fixing of C.I. DOUBLE AIR VALVE AS PER ISI 14845/2000 AND WITH 5 YEARS WARRANTY
50mm CI Air Valve
SUMP CLEANING
Cleaning of all storage points like sumps, elevated reservoirs of various capacities available in this scheme at a frequency of once in two months including scrapping the inner side of compartment completely, scouring / dewatering / desilting using required machineries, materials, labour and all other incidental charges, application of bleaching powder/ solution etc complete.
For 5000 to 15000 lit cap sump
For 15001 to 30000 lit cap sump
Desilting light or sandysoil or silt from collection well below water level including the charges for special tools & plants and air compressor etc complete
Bleaching powder of 34% concentration as per standard specification.
COMBINED WATER SUPPLY SCHEME TO MENALUR H AND 10 OTHER HABITATIONS IN VEMBAKKAM UNION OF TIRUVANNAMALAI DISTRICT
Operation and Maintenance of the Electro Mechanical installations, equipments, components, pipelines valves and appurtenances, water retaining structures including protecton of all schemee components from damages/ theft undertaking legal actions for such untoward incidents, preventive maintenance, disinfection and deliverance of water as per quality standards and supply of earmarked quantity of water to the beneficiaries as per Annexure .........., carrying out the O&M as per standard operating procedures, Acts and rules in force and as directed by TWAD Board Oficers and excluding cost towards attending leak, burst repair and replacement works to electro mechanical installations consumables for disinfection of water, cleaning of all water retaining structure, electricity .
Repair & Renewals and Leak & Bursts :
Attending Leaks in the PVC pipelines of this CWSS for the following items, as per the standard procedure including earthwork excavation, dewatering, removing, relaying, jointing, civil works, cost of materials and all other incidental charges, etc complete within the stipulated time limit as directed by the TWAD Board officers.
PVC 4 KSC Pipes_Minor Leak
90mm OD PVC 4 KSC pipes_Minor Leak
110mm OD PVC 4 KSC pipes_Minor Leak
160mm OD PVC 4 KSC pipes_Minor Leak
PVC 4 KSC Pipes_Major Leak
90mm OD PVC 4 KSC pipes_Major Leak
110mm OD PVC 4 KSC pipes_Major Leak
160mm OD PVC 4 KSC pipes_Major Leak
PVC 6 KSC Pipes_Minor Leak
90mm OD PVC 6 KSC pipes_Minor Leak
110mm OD PVC 6 KSC pipes_Minor Leak
160mm OD PVC 6 KSC pipes_Minor Leak
PVC 6 KSC Pipes_Major Leak
90mm OD PVC 6 KSC pipes_Major Leak
110mm OD PVC 6 KSC pipes_Major Leak
160mm OD PVC 6 KSC pipes_Major Leak
Attending Leaks/Bursts in the HDPE pipelines of this CWSS for the following items, as per the standard procedure including earthwork excavation, dewatering, removing, relaying, jointing by Electro fusion/butt Joint, civil works, cost of materials and all other incidental charges, etc complete within the stipulated time limit as directed by the TWAD Board officers.
HDPE PN 6 Pipes_Minor Leaks
90mm HDPE PN 6 pipes_Minor Leak
160mm HDPE PN 6 pipes_Minor Leak
HDPE PN 6 Pipes_Major Leaks
90mm HDPE PN 6 pipes_Major Leak
160mm HDPE PN 6 pipes_Major Leak
Attending leaks and bursts in GI pipes of various sizes including Supply and delivery of following G I PIPES (MEDIUM) AS PER IS 1239/PART I/2004 and Lowering GI pipes and specials in the trenches and laying to proper grade and alignment, jointing with GI Specials and as directed by the TWAD Officers
50mm GI Pipe leak above GL
65mm GI Pipe leak above GL
80mm GI Pipe leak above GL
100mm GI Pipe leak above GL
125mm GI Pipe leak above GL
150mm GI Pipe leak above GL
Attending joint (Collar) Leaks in the AC pipelines of this CWSS for the following items, as per the standard procedure including earthwork excavation, dewatering, removing, relaying, jointing, civil works, cost of materials and all incidental charges, etc complete within the stipulated time limit as specified in Clause 2.6.4 of General conditions of Contract
AC Pipe_Collar Leak
150mm AC_Collar Leak
AC Pipe_Minor Leak centre crack
150mm AC Pipe_MS Cut Barrel
Attending Leaks/Bursts in the DI pipelines of this CWSS for the following items, as per the standard procedure including earthwork excavation, dewatering, removing, relaying, jointing, civil works, cost of materials and all incidental charges, etc complete within the stipulated time limit as specified in Clause 2.6.4 of General conditions of Contract
DI Pipes_Minor Leak
150mm DI pipes - Minor leak
DI Pipes_Major Leak
150mm DI pipes - Major leak
Labour for cutting open B.T. Roads (or) Maccadam road for laying water mains - 15 cm thick (SOR VOL II P.195)
For all size Pumping mains
Road Restoration with PCC 1:2:4 using 20 mm HBGS for the Concrete Road cut Portion after the pipes are laid, joined and tested complete and as directed by TWAD Board Officers - 15 cm thick
For all size Pumping mains
MATERIALS
Supply and delivery of following sizes of HDPE PIPES - PE 100 AS PER IS 4984/2016 (Pre-Compounded Resin) inclusive of transportation charges to stockyard excluding unloading anywhere in Tamilnadu etc, complete and as directed by the TWAD Board officers. (SOR VOL II P.14)
160mm HDPE PN 6
125mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
CIVIL WORKS
Earth work excavation and depositing on bank with initial lead of 10 m and initial lift of 2m in narrow trenches for laying of pipes for water supply in the following types of soil
Hard stiff clay, stiff black cotton, hard red earth, shales, murrum gravel, stoney earth and earth mixed with small size boulders and hard gravelly soil. (SOR VOL II P.192)
160mm HDPE PN 6
140mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
Lowering HDPE pipes and specials to trench and laying to proper grade and alignment and as directed by the TWAD Officers. (SOR VOL II P.171)
160mm HDPE PN 6
125mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
Jointing HDPE Pipes and Specials by butt fusion welding / electro fusion welding joints using fusion equipment as per ISO 21307-2011 and as per IS 7634 (part-2) : 2012 including cost of hire charges for butt fusion equipment power supply arrangements etc., complete as per directed by TWAD Board Officers. (SOR VOL II P.184)
160mm HDPE PN 6
125mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
Refiling with excavated sand or other loose soil complying with standerd specification in layers of 15 cm thick well rammed and consolidated after pipes and specials are laid and tested. (SOR VOL II P.192)
160mm HDPE PN 6
125mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
Pumpsets
Carrying out the following repair works occuring during the maintenance period in the Electrical, Mechanical and Elctro-mechanical items to bring back the scheme / components into normal running conditition as per standard specification including all labour charges, cost of materials and all incidental charges within the stipulated time limit etc., complete as specified in Clause 2.8 of General conditions of Contract Part II etc as directed by TWAD Board officers
Attending the Rewinding, Repair and Renewal works in various capacity Open Well Submersible Pumpsets
Removing the Submersible pumpset by using tripod set after disconnecting the power supply cable and delivery pipe line fittings
3HP -OWS
5HP -OWS
7.5HP -OWS
10HP -OWS
12.50HP -OWS
Transporting the pumpset from Pump House to work shop.
3HP -OWS
5HP -OWS
7.5HP -OWS
10HP -OWS
12.50HP -OWS
Rewinding the submersible motor using best quality winding wire including cost of wire, Sleeve, other insulating and fibre class materials after deducting the cost of old materials.
3HP -OWS
5HP -OWS
7.5HP -OWS
10HP -OWS
12.50HP -OWS
Reconditioning the worn-out shaft and fittings, impeller and Gun Metal/ SS Bushes including cost of lath work & labour charges etc.,
3HP -OWS
5HP -OWS
7.5HP -OWS
10HP -OWS
12.50HP -OWS
Replacement of carbon type thrust bearing and pumpside Gun Metal Bush including cost of labour charges after deducting the cost of old material
3HP -OWS
5HP -OWS
7.5HP -OWS
10HP -OWS
12.50HP -OWS
Transporting charges for Submersible pumpset from work shop to Pump House after attending repair works.
3HP -OWS
5HP -OWS
7.5HP -OWS
10HP -OWS
12.50HP -OWS
Re-erection of pumpset in the Sump / Well by using tripod set and required Rubber washer and Bolt & Nuts and connecting the power supply cable and delivery pipeline arrangements testing to trial pumping.
3HP -OWS
5HP -OWS
7.5HP -OWS
10HP -OWS
12.50HP -OWS
SUPPLY AND DELIVERY OF SERVICE CONNECTION ACCESSORIES L.T. 1100V PVC ALUMINIUM ARMOURED UNDER GROUND CABLE WITH ISI MARK
25 Sq.mm 3.5 Core
35 Sq.mm 3.5 Core
50 Sq.mm 3.5 Core
SUPPLY AND DELIVERY OF L.T. CABLES following size sq mm 3 CORE 1.1 KV GRADE ARMOURED ALUMINIUM CONDUCTOR CROSS LINKED POLY ETHYLENE INSULATED PVC SHEATHED CABLES CONFORMING TO IS 7098 (PART I)/1988 WITH ISI MARKING
50 Sq.mm 3 Core
SUPPLY AND DELIVERY OF PVC INSULATED AND SHEATHED following sq mm 3 CORE FLAT TYPE COPPER CABLE CONFORMING TO IS 694/1989
SUPPLY AND DELIVERY OF 150mm dia Pressure Gauge and Vaccum guage including all accessories as per specification (For Suction and Delivery to be mounted on wall on Teak Wood Board)
Supply, delivey and fixing of MOULDED CASE CIRCUIT BREAKER (MCCB) WITH THERMO MAGNETIC RELEASE - 4 Pole
Range - 63/100A
Supply, delivey and fixing of RATE FOR MIXED DI-ELECTRIC CAPACITOR WITH TNEB TEST CERTIFICATE WITH ACCESSORIES INCLUDING BANKING CONFORMIING TO IS 2834.
Supply, delivey and fixing of Electro magnetic contactors of suitable capacity in AC Three Phase rating, conforming to IS/IEC 60947-4-1.
Supply, delivey and fixing of Overload Relays: Directly operated Bimetallic Thermal overload relay which operates in case of overload and also in case of under voltage with manual and auto reset mode.
Supply, delivey and fixing of Preventer – Single Phasing - Electric Motor protection device against single phasing. The device should protect the motor against single phasing, reverse phasing and unbalance supply. The device should be suitable for any auxillary device and have provisions for mounting in panel boards. Operate without need of any auxiliary supply.
Electric Motor protection device against dry running. The device should protect the motor against Dry running. The device should be suitable for any auxillary device and have provisions for mounting in panel boards. Operate without need of any auxiliary supply
Supply, delivey and fixing of FUSE UNITS (ANCHOR /EQUIVALENT)
63 Amps Porcelain fuse unit (500 V)
100 Amps Porcelain fuse unit (500 V)
200 Amps Porcelain fuse unit (500 V)
Supply, delivey and fixing of CHANGE OVER SWITCHES
16 Amps three phase 500 V 4 pole Change over switch
32 Amps three phase 500 V 4 pole Change over switch
63 Amps three phase 500 V 4 pole Change over switch
100 Amps three phase 500 V 4 pole Change over switch
Supply, delivey and fixing of PVC INSULATED SINGLE CORE MULTI STRAND FIRE RETARDANT FLEXIBLE COPPER CABLE WITH ISI MARK CONFORMING TO IS
Supply, delivey and fixing of HRC - FUSES - HIGHER END
HRC - 16 Amps
HRC - 32 Amps
HRC - 63 Amps
HRC - 125 Amps
Supply and delivery of the following Electrical Works :consumable items at the site of work to carryout the general maintenace works
Voltmeter Digital - Three Phase Class 1-AC
Ammeter Digital - Three Phase Class 1-1A
20W 4 Feet LED Fitting with LED (Higher end)
LED OUTDOOR FITTINGS (LIGHT EMITTING DIODE) LOWER END 25W LED Street Light Fitting with LED
Supply and delivery of the following consumable items for Pump Set repairs at the site of work to carryout the general maintenace works
50mm GM Gate valve
80mm GM Gate valve
R I Sheet
Bolts and Nuts - All sizes
50mm GI Pipe
80mm GI Pipe
100mm GI pipe
Supply, delivey and fixing of C.I. DOUBLE AIR VALVE AS PER ISI 14845/2000 AND WITH 5 YEARS WARRANTY
50mm CI Air Valve
SUMP CLEANING
Cleaning of all storage points like sumps, elevated reservoirs of various capacities available in this scheme at a frequency of once in two months including scrapping the inner side of compartment completely, scouring / dewatering / desilting using required machineries, materials, labour and all other incidental charges, application of bleaching powder/ solution etc complete.
For 15001 to 30000 lit cap sump
Desilting light or sandysoil or silt from collection well below water level including the charges for special tools & plants and air compressor etc complete
Provision for replacement of existing pipelines which are damaged due to widening of SH, NH and NHAI Roads and other line departments
MATERIALS
Supply and delivery of following sizes of HDPE PIPES - PE 100 AS PER IS 4984/2016 (Pre-Compounded Resin) inclusive of transportation charges to stockyard excluding unloading anywhere in Tamilnadu etc, complete and as directed by the TWAD Board officers. (SOR VOL II P.14)
160mm HDPE PN 6
125mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
CIVIL WORKS
Earth work excavation and depositing on bank with initial lead of 10 m and initial lift of 2m in narrow trenches for laying of pipes for water supply in the following types of soil
Hard stiff clay, stiff black cotton, hard red earth, shales, murrum gravel, stoney earth and earth mixed with small size boulders and hard gravelly soil. (SOR VOL II P.192)
160mm HDPE PN 6
140mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
Lowering HDPE pipes and specials to trench and laying to proper grade and alignment and as directed by the TWAD Officers. (SOR VOL II P.171)
160mm HDPE PN 6
125mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
Jointing HDPE Pipes and Specials by butt fusion welding / electro fusion welding joints using fusion equipment as per ISO 21307-2011 and as per IS 7634 (part-2) : 2012 including cost of hire charges for butt fusion equipment power supply arrangements etc., complete as per directed by TWAD Board Officers. (SOR VOL II P.184)
160mm HDPE PN 6
125mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
Refiling with excavated sand or other loose soil complying with standerd specification in layers of 15 cm thick well rammed and consolidated after pipes and specials are laid and tested. (SOR VOL II P.192)
160mm HDPE PN 6
125mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
Bleaching powder of 34% concentration as per standard specification.
COMBINED WATER SUPPLY SCHEME TO PARASUR AND 13 OTHER HABITATIONS IN ANAKKAVUR & CHEYYAR UNION OF TIRUVANNAMALAI DISTRICT
Attending Leaks in the PVC pipelines of this CWSS for the following items, as per the standard procedure including earthwork excavation, dewatering, removing, relaying, jointing, civil works, cost of materials and all other incidental charges, etc complete within the stipulated time limit as directed by the TWAD Board officers.
PVC 4 KSC Pipes_Minor Leak
63mm OD PVC 4 KSC pipes_Minor Leak
75mm OD PVC 4 KSC pipes_Minor Leak
90mm OD PVC 4 KSC pipes_Minor Leak
110mm OD PVC 4 KSC pipes_Minor Leak
140mm OD PVC 4 KSC pipes_Minor Leak
160mm OD PVC 4 KSC pipes_Minor Leak
PVC 4 KSC Pipes_Major Leak
63mm OD PVC 4 KSC pipes_Major Leak
75mm OD PVC 4 KSC pipes_Major Leak
90mm OD PVC 4 KSC pipes_Major Leak
110mm OD PVC 4 KSC pipes_Major Leak
140mm OD PVC 4 KSC pipes_Major Leak
160mm OD PVC 4 KSC pipes_Major Leak
Attending Leaks/Bursts in the HDPE pipelines of this CWSS for the following items, as per the standard procedure including earthwork excavation, dewatering, removing, relaying, jointing by Electro fusion/butt Joint, civil works, cost of materials and all other incidental charges, etc complete within the stipulated time limit as directed by the TWAD Board officers.
HDPE PN 6 Pipes_Minor Leaks
90mm HDPE PN 6 pipes_Minor Leak
110mm HDPE PN 6 pipes_Minor Leak
HDPE PN 6 Pipes_Major Leaks
90mm HDPE PN 6 pipes_Major Leak
110mm HDPE PN 6 pipes_Major Leak
Attending leaks and bursts in GI pipes of various sizes including Supply and delivery of following G I PIPES (MEDIUM) AS PER IS 1239/PART I/2004 and Lowering GI pipes and specials in the trenches and laying to proper grade and alignment, jointing with GI Specials and as directed by the TWAD Officers
50mm GI Pipe leak above GL
80mm GI Pipe leak above GL
100mm GI Pipe leak above GL
Labour for cutting open B.T. Roads (or) Maccadam road for laying water mains - 15 cm thick (SOR VOL II P.195)
For all size Pumping mains
Road Restoration with PCC 1:2:4 using 20 mm HBGS for the Concrete Road cut Portion after the pipes are laid, joined and tested complete and as directed by TWAD Board Officers - 15 cm thick
For all size Pumping mains
MATERIALS
Supply and delivery of following sizes of HDPE PIPES - PE 100 AS PER IS 4984/2016 (Pre-Compounded Resin) inclusive of transportation charges to stockyard excluding unloading anywhere in Tamilnadu etc, complete and as directed by the TWAD Board officers. (SOR VOL II P.14)
160mm HDPE PN 6
140mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
75mm HDPE PN 6
63mm HDPE PN 6
CIVIL WORKS
Earth work excavation and depositing on bank with initial lead of 10 m and initial lift of 2m in narrow trenches for laying of pipes for water supply in the following types of soil
Hard stiff clay, stiff black cotton, hard red earth, shales, murrum gravel, stoney earth and earth mixed with small size boulders and hard gravelly soil. (SOR VOL II P.192)
160mm HDPE PN 6
140mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
75mm HDPE PN 6
63mm HDPE PN 6
Lowering HDPE pipes and specials to trench and laying to proper grade and alignment and as directed by the TWAD Officers. (SOR VOL II P.171)
160mm HDPE PN 6
140mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
75mm HDPE PN 6
63mm HDPE PN 6
Jointing HDPE Pipes and Specials by butt fusion welding / electro fusion welding joints using fusion equipment as per ISO 21307-2011 and as per IS 7634 (part-2) : 2012 including cost of hire charges for butt fusion equipment power supply arrangements etc., complete as per directed by TWAD Board Officers. (SOR VOL II P.184)
160mm HDPE PN 6
140mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
75mm HDPE PN 6
63mm HDPE PN 6
Refiling with excavated sand or other loose soil complying with standerd specification in layers of 15 cm thick well rammed and consolidated after pipes and specials are laid and tested. (SOR VOL II P.192)
160mm HDPE PN 6
140mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
75mm HDPE PN 6
63mm HDPE PN 6
Pumpsets
Carrying out the following repair works occuring during the maintenance period in the Electrical, Mechanical and Elctro-mechanical items to bring back the scheme / components into normal running conditition as per standard specification including all labour charges, cost of materials and all incidental charges within the stipulated time limit etc., complete as specified in Clause 2.8 of General conditions of Contract Part II etc as directed by TWAD Board officers
Attending the Rewinding, Repair and Renewal works in various capacity Open Well Submersible Pumpsets
Removing the Submersible pumpset by using tripod set after disconnecting the power supply cable and delivery pipe line fittings
15HP -OWS
Transporting the pumpset from Pump House to work shop.
15HP -OWS
Rewinding the submersible motor using best quality winding wire including cost of wire, Sleeve, other insulating and fibre class materials after deducting the cost of old materials.
15HP -OWS
Reconditioning the worn-out shaft and fittings, impeller and Gun Metal/ SS Bushes including cost of lath work & labour charges etc.,
15HP -OWS
Replacement of carbon type thrust bearing and pumpside Gun Metal Bush including cost of labour charges after deducting the cost of old material
15HP -OWS
Transporting charges for Submersible pumpset from work shop to Pump House after attending repair works.
15HP -OWS
Re-erection of pumpset in the Sump / Well by using tripod set and required Rubber washer and Bolt & Nuts and connecting the power supply cable and delivery pipeline arrangements testing to trial pumping.
15HP -OWS
SUPPLY AND DELIVERY OF SERVICE CONNECTION ACCESSORIES L.T. 1100V PVC ALUMINIUM ARMOURED UNDER GROUND CABLE WITH ISI MARK
25 Sq.mm 3.5 Core
35 Sq.mm 3.5 Core
50 Sq.mm 3.5 Core
SUPPLY AND DELIVERY OF L.T. CABLES following size sq mm 3 CORE 1.1 KV GRADE ARMOURED ALUMINIUM CONDUCTOR CROSS LINKED POLY ETHYLENE INSULATED PVC SHEATHED CABLES CONFORMING TO IS 7098 (PART I)/1988 WITH ISI MARKING
50 Sq.mm 3 Core
SUPPLY AND DELIVERY OF PVC INSULATED AND SHEATHED following sq mm 3 CORE FLAT TYPE COPPER CABLE CONFORMING TO IS 694/1989
SUPPLY AND DELIVERY OF 150mm dia Pressure Gauge and Vaccum guage including all accessories as per specification (For Suction and Delivery to be mounted on wall on Teak Wood Board)
Supply, delivey and fixing of MOULDED CASE CIRCUIT BREAKER (MCCB) WITH THERMO MAGNETIC RELEASE - 4 Pole
Range - 63/100A
Supply, delivey and fixing of RATE FOR MIXED DI-ELECTRIC CAPACITOR WITH TNEB TEST CERTIFICATE WITH ACCESSORIES INCLUDING BANKING CONFORMIING TO IS 2834.
Supply, delivey and fixing of Electro magnetic contactors of suitable capacity in AC Three Phase rating, conforming to IS/IEC 60947-4-1.
Supply, delivey and fixing of Overload Relays: Directly operated Bimetallic Thermal overload relay which operates in case of overload and also in case of under voltage with manual and auto reset mode.
Supply, delivey and fixing of Preventer – Single Phasing - Electric Motor protection device against single phasing. The device should protect the motor against single phasing, reverse phasing and unbalance supply. The device should be suitable for any auxillary device and have provisions for mounting in panel boards. Operate without need of any auxiliary supply.
Electric Motor protection device against dry running. The device should protect the motor against Dry running. The device should be suitable for any auxillary device and have provisions for mounting in panel boards. Operate without need of any auxiliary supply
Supply, delivey and fixing of FUSE UNITS (ANCHOR /EQUIVALENT)
100 Amps Porcelain fuse unit (500 V)
Supply, delivey and fixing of CHANGE OVER SWITCHES
100 Amps three phase 500 V 4 pole Change over switch
Supply, delivey and fixing of PVC INSULATED SINGLE CORE MULTI STRAND FIRE RETARDANT FLEXIBLE COPPER CABLE WITH ISI MARK CONFORMING TO IS
Supply, delivey and fixing of HRC - FUSES - HIGHER END
HRC - 125 Amps
Supply and delivery of the following Electrical Works :consumable items at the site of work to carryout the general maintenace works
Voltmeter Digital - Three Phase Class 1-AC
Ammeter Digital - Three Phase Class 1-1A
20W 4 Feet LED Fitting with LED (Higher end)
LED OUTDOOR FITTINGS (LIGHT EMITTING DIODE) LOWER END 25W LED Street Light Fitting with LED
Supply and delivery of the following consumable items for Pump Set repairs at the site of work to carryout the general maintenace works
50mm GM Gate valve
80mm GM Gate valve
R I Sheet
Bolts and Nuts - All sizes
50mm GI Pipe
80mm GI Pipe
100mm GI pipe
Supply, delivery and fixing of DI D/F Gate sluice/scour valves (soft seated) resilient seated soft sealing Gate Valves(Sluice Valves) with body Bonnet of Ductile cast iron of Grade GGG 40 or equivalent grade, Wedge fully rubber lined with EPDM replaceable spindle nut without gland packing and with 3 O- Ring protection on the shaft and seals of NBR and the valves should be of Vacuum tight and 100% leak proof with face to face dimensions as per BS 5163- 89/ISI 14846-2000/DIN 3202 F4. All the valves should be with electrostatic powder coating both inside and out side with pocket less straight through body passage. All the valves are to be compatible for buried application with pressure rating PN 10/16 and with 5 years warranty.
100mm DI Gate Valve
Supply, delivey and fixing of C.I. DOUBLE AIR VALVE AS PER ISI 14845/2000 AND WITH 5 YEARS WARRANTY
50mm CI Air Valve
Desilting light or sandysoil or silt from collection well below water level including the charges for special tools & plants and air compressor etc complete
Bleaching powder of 34% concentration as per standard specification.
COMBINED WATER SUPPLY SCHEME TO SODIYAMPAKKAM AND 10 OTHER HABITATIONS IN VEMBAKKAM UNION OF TIRUVANNAMALAI DISTRICT
Operation and Maintenance of the Electro Mechanical installations, equipments, components, pipelines valves and appurtenances, water retaining structures including protecton of all schemee components from damages/ theft undertaking legal actions for such untoward incidents, preventive maintenance, disinfection and deliverance of water as per quality standards and supply of earmarked quantity of water to the beneficiaries as per Annexure .........., carrying out the O&M as per standard operating procedures, Acts and rules in force and as directed by TWAD Board Oficers and excluding cost towards attending leak, burst repair and replacement works to electro mechanical installations consumables for disinfection of water, cleaning of all water retaining structure, electricity .
Repair & Renewals and Leak & Bursts :
Attending Leaks in the PVC pipelines of this CWSS for the following items, as per the standard procedure including earthwork excavation, dewatering, removing, relaying, jointing, civil works, cost of materials and all other incidental charges, etc complete within the stipulated time limit as directed by the TWAD Board officers.
PVC 4 KSC Pipes_Minor Leak
63mm OD PVC 4 KSC pipes_Minor Leak
75mm OD PVC 4 KSC pipes_Minor Leak
90mm OD PVC 4 KSC pipes_Minor Leak
110mm OD PVC 4 KSC pipes_Minor Leak
PVC 4 KSC Pipes_Major Leak
63mm OD PVC 4 KSC pipes_Major Leak
75mm OD PVC 4 KSC pipes_Major Leak
90mm OD PVC 4 KSC pipes_Major Leak
110mm OD PVC 4 KSC pipes_Major Leak
Attending Leaks/Bursts in the HDPE pipelines of this CWSS for the following items, as per the standard procedure including earthwork excavation, dewatering, removing, relaying, jointing by Electro fusion/butt Joint, civil works, cost of materials and all other incidental charges, etc complete within the stipulated time limit as directed by the TWAD Board officers.
HDPE PN 6 Pipes_Minor Leaks
63mm HDPE PN 6 pipes_Minor Leak
90mm HDPE PN 6 pipes_Minor Leak
160mm HDPE PN 6 pipes_Minor Leak
HDPE PN 6 Pipes_Major Leaks
63mm HDPE PN 6 pipes_Major Leak
90mm HDPE PN 6 pipes_Major Leak
160mm HDPE PN 6 pipes_Major Leak
Attending leaks and bursts in GI pipes of various sizes including Supply and delivery of following G I PIPES (MEDIUM) AS PER IS 1239/PART I/2004 and Lowering GI pipes and specials in the trenches and laying to proper grade and alignment, jointing with GI Specials and as directed by the TWAD Officers
50mm GI Pipe leak above GL
80mm GI Pipe leak above GL
Attending joint (Collar) Leaks in the AC pipelines of this CWSS for the following items, as per the standard procedure including earthwork excavation, dewatering, removing, relaying, jointing, civil works, cost of materials and all incidental charges, etc complete within the stipulated time limit as specified in Clause 2.6.4 of General conditions of Contract
AC Pipe_Collar Leak
150mm AC_Collar Leak
AC Pipe_Minor Leak centre crack
150mm AC Pipe_MS Cut Barrel
Labour for cutting open B.T. Roads (or) Maccadam road for laying water mains - 15 cm thick (SOR VOL II P.195)
For all size Pumping mains
Road Restoration with PCC 1:2:4 using 20 mm HBGS for the Concrete Road cut Portion after the pipes are laid, joined and tested complete and as directed by TWAD Board Officers - 15 cm thick
For all size Pumping mains
Supply and delivery of following sizes of HDPE PIPES - PE 100 AS PER IS 4984/2016 (Pre-Compounded Resin) inclusive of transportation charges to stockyard excluding unloading anywhere in Tamilnadu etc, complete and as directed by the TWAD Board officers. (SOR VOL II P.14)
160mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
75mm HDPE PN 6
63mm HDPE PN 6
CIVIL WORKS
Earth work excavation and depositing on bank with initial lead of 10 m and initial lift of 2m in narrow trenches for laying of pipes for water supply in the following types of soil
Hard stiff clay, stiff black cotton, hard red earth, shales, murrum gravel, stoney earth and earth mixed with small size boulders and hard gravelly soil. (SOR VOL II P.192)
160mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
75mm HDPE PN 6
63mm HDPE PN 6
Lowering HDPE pipes and specials to trench and laying to proper grade and alignment and as directed by the TWAD Officers. (SOR VOL II P.171)
160mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
75mm HDPE PN 6
63mm HDPE PN 6
Jointing HDPE Pipes and Specials by butt fusion welding / electro fusion welding joints using fusion equipment as per ISO 21307-2011 and as per IS 7634 (part-2) : 2012 including cost of hire charges for butt fusion equipment power supply arrangements etc., complete as per directed by TWAD Board Officers. (SOR VOL II P.184)
160mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
75mm HDPE PN 6
63mm HDPE PN 6
Refiling with excavated sand or other loose soil complying with standerd specification in layers of 15 cm thick well rammed and consolidated after pipes and specials are laid and tested. (SOR VOL II P.192)
160mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
75mm HDPE PN 6
63mm HDPE PN 6
Pumpsets
Carrying out the following repair works occuring during the maintenance period in the Electrical, Mechanical and Elctro-mechanical items to bring back the scheme / components into normal running conditition as per standard specification including all labour charges, cost of materials and all incidental charges within the stipulated time limit etc., complete as specified in Clause 2.8 of General conditions of Contract Part II etc as directed by TWAD Board officers
Attending the Rewinding, Repair and Renewal works in various capacity Open Well Submersible Pumpsets
Removing the Submersible pumpset by using tripod set after disconnecting the power supply cable and delivery pipe line fittings
5HP -OWS
15HP -OWS
20HP -OWS
30HP -OWS
Transporting the pumpset from Pump House to work shop.
5HP -OWS
15HP -OWS
20HP -OWS
30HP -OWS
Rewinding the submersible motor using best quality winding wire including cost of wire, Sleeve, other insulating and fibre class materials after deducting the cost of old materials.
5HP -OWS
15HP -OWS
20HP -OWS
30HP -OWS
Reconditioning the worn-out shaft and fittings, impeller and Gun Metal/ SS Bushes including cost of lath work & labour charges etc.,
5HP -OWS
15HP -OWS
20HP -OWS
30HP -OWS
Replacement of carbon type thrust bearing and pumpside Gun Metal Bush including cost of labour charges after deducting the cost of old material
5HP -OWS
15HP -OWS
20HP -OWS
30HP -OWS
Transporting charges for Submersible pumpset from work shop to Pump House after attending repair works.
5HP -OWS
15HP -OWS
20HP -OWS
30HP -OWS
Re-erection of pumpset in the Sump / Well by using tripod set and required Rubber washer and Bolt & Nuts and connecting the power supply cable and delivery pipeline arrangements testing to trial pumping.
5HP -OWS
15HP -OWS
20HP -OWS
30HP -OWS
Attending the Rewinding, Repair and Renewal works in Monoblock Pumpset
5HP_Monoblock
Removing the Monblock Centrifugal Pumpset from the Bed assembly by using contractors tools and materials after disconnecting the power supply cable and delivery pipe line fittings with required dummy plate arrangements.
Transporting the pumpset from the Pumping Station to work shop.
Removing the Burnt winding materials from the stator slots and cleaning the stator and rotor assembly by using contractor tools and materials
Reconditioning the worn-out shaft and fittings, impeller and Rope gland bush including cost of lath work & labour charges etc.,
Rewinding the Monblock Centrifugal Motor using best quality winding wire including cost of wire, Sleeve, other insulating and fibre class materials after deducting the cost of old materials.
Replacement of driven end (No: XXXX) and Non driven end (No:XXXX) Bearings suitable for Monblock Centrifugal Motor including the cost of Bearing and labour charges after deducting the cost of old materials.
Replacement of cooling fan at motor end and Terminal Board for suitable for Monblock Centrifugal Pumpset and labour charges after deducting the cost of old materials.
Transporting charges for Monblock Centrifugal Pumpset from work shop to Pump House after attending repair works.
Re-erection of pumpset in the Sump / Well by using required Rubber washer and Bolt & Nuts and connecting the power supply cable and delivery pipe line arrangements, testing and trial pumping.
7.5HP_Monoblock
Removing the Monblock Centrifugal Pumpset from the Bed assembly by using contractors tools and materials after disconnecting the power supply cable and delivery pipe line fittings with required dummy plate arrangements.
Transporting the pumpset from the Pumping Station to work shop.
Removing the Burnt winding materials from the stator slots and cleaning the stator and rotor assembly by using contractor tools and materials
Reconditioning the worn-out shaft and fittings, impeller and Rope gland bush including cost of lath work & labour charges etc.,
Rewinding the Monblock Centrifugal Motor using best quality winding wire including cost of wire, Sleeve, other insulating and fibre class materials after deducting the cost of old materials.
Replacement of driven end (No: XXXX) and Non driven end (No:XXXX) Bearings suitable for Monblock Centrifugal Motor including the cost of Bearing and labour charges after deducting the cost of old materials.
Replacement of cooling fan at motor end and Terminal Board for suitable for Monblock Centrifugal Pumpset and labour charges after deducting the cost of old materials.
Transporting charges for Monblock Centrifugal Pumpset from work shop to Pump House after attending repair works.
Re-erection of pumpset in the Sump / Well by using required Rubber washer and Bolt & Nuts and connecting the power supply cable and delivery pipe line arrangements, testing and trial pumping.
SUPPLY AND DELIVERY OF SERVICE CONNECTION ACCESSORIES L.T. 1100V PVC ALUMINIUM ARMOURED UNDER GROUND CABLE WITH ISI MARK
25 Sq.mm 3.5 Core
35 Sq.mm 3.5 Core
50 Sq.mm 3.5 Core
SUPPLY AND DELIVERY OF L.T. CABLES following size sq mm 3 CORE 1.1 KV GRADE ARMOURED ALUMINIUM CONDUCTOR CROSS LINKED POLY ETHYLENE INSULATED PVC SHEATHED CABLES CONFORMING TO IS 7098 (PART I)/1988 WITH ISI MARKING
25 Sq.mm 3 Core
95 Sq.mm 3 Core
SUPPLY AND DELIVERY OF PVC INSULATED AND SHEATHED following sq mm 3 CORE FLAT TYPE COPPER CABLE CONFORMING TO IS 694/1989
SUPPLY AND DELIVERY OF 150mm dia Pressure Gauge and Vaccum guage including all accessories as per specification (For Suction and Delivery to be mounted on wall on Teak Wood Board)
Supply, delivey and fixing of MOULDED CASE CIRCUIT BREAKER (MCCB) WITH THERMO MAGNETIC RELEASE - 4 Pole
Range - 63/100A
Range - 125A
Supply, delivey and fixing of RATE FOR MIXED DI-ELECTRIC CAPACITOR WITH TNEB TEST CERTIFICATE WITH ACCESSORIES INCLUDING BANKING CONFORMIING TO IS 2834.
Supply, delivey and fixing of Electro magnetic contactors of suitable capacity in AC Three Phase rating, conforming to IS/IEC 60947-4-1.
Supply, delivey and fixing of Overload Relays: Directly operated Bimetallic Thermal overload relay which operates in case of overload and also in case of under voltage with manual and auto reset mode.
Supply, delivey and fixing of Preventer – Single Phasing - Electric Motor protection device against single phasing. The device should protect the motor against single phasing, reverse phasing and unbalance supply. The device should be suitable for any auxillary device and have provisions for mounting in panel boards. Operate without need of any auxiliary supply.
Electric Motor protection device against dry running. The device should protect the motor against Dry running. The device should be suitable for any auxillary device and have provisions for mounting in panel boards. Operate without need of any auxiliary supply
Supply, delivey and fixing of FUSE UNITS (ANCHOR /EQUIVALENT)
63 Amps Porcelain fuse unit (500 V)
100 Amps Porcelain fuse unit (500 V)
200 Amps Porcelain fuse unit (500 V)
Supply, delivey and fixing of CHANGE OVER SWITCHES
16 Amps three phase 500 V 4 pole Change over switch
32 Amps three phase 500 V 4 pole Change over switch
63 Amps three phase 500 V 4 pole Change over switch
100 Amps three phase 500 V 4 pole Change over switch
Supply, delivey and fixing of PVC INSULATED SINGLE CORE MULTI STRAND FIRE RETARDANT FLEXIBLE COPPER CABLE WITH ISI MARK CONFORMING TO IS
Supply, delivey and fixing of HRC - FUSES - HIGHER END
HRC - 16 Amps
HRC - 32 Amps
HRC - 63 Amps
HRC - 125 Amps
HRC - 200 Amps
Supply and delivery of the following Electrical Works :consumable items at the site of work to carryout the general maintenace works
Voltmeter Digital - Three Phase Class 1-AC
Ammeter Digital - Three Phase Class 1-1A
20W 4 Feet LED Fitting with LED (Higher end)
LED OUTDOOR FITTINGS (LIGHT EMITTING DIODE) LOWER END 25W LED Street Light Fitting with LED
Supply and delivery of the following consumable items for Pump Set repairs at the site of work to carryout the general maintenace works
50mm GM Gate valve
80mm GM Gate valve
R I Sheet
Bolts and Nuts - All sizes
50mm GI Pipe
80mm GI Pipe
100mm GI pipe
Supply, delivery and fixing of DI D/F Gate sluice/scour valves (soft seated) resilient seated soft sealing Gate Valves(Sluice Valves) with body Bonnet of Ductile cast iron of Grade GGG 40 or equivalent grade, Wedge fully rubber lined with EPDM replaceable spindle nut without gland packing and with 3 O- Ring protection on the shaft and seals of NBR and the valves should be of Vacuum tight and 100% leak proof with face to face dimensions as per BS 5163- 89/ISI 14846-2000/DIN 3202 F4. All the valves should be with electrostatic powder coating both inside and out side with pocket less straight through body passage. All the valves are to be compatible for buried application with pressure rating PN 10/16 and with 5 years warranty.
150mm DI Gate Valve
Supply, delivey and fixing of C.I. DOUBLE AIR VALVE AS PER ISI 14845/2000 AND WITH 5 YEARS WARRANTY
50mm CI Air Valve
SUMP CLEANING
Cleaning of all storage points like sumps, elevated reservoirs of various capacities available in this scheme at a frequency of once in two months including scrapping the inner side of compartment completely, scouring / dewatering / desilting using required machineries, materials, labour and all other incidental charges, application of bleaching powder/ solution etc complete.
For 45001 to 60000 lit cap sump
Desilting light or sandysoil or silt from collection well below water level including the charges for special tools & plants and air compressor etc complete
Bleaching powder of 34% concentration as per standard specification.
COMBINED WATER SUPPLY SCHEME TO THENPOONDIPATTU AND 13 OTHER HABITATIONS IN CHEYYAR UNION & VEMBAKKAM UNION OF TIRUVANNAMALAI DISTRICT
Operation and Maintenance of the Electro Mechanical installations, equipments, components, pipelines valves and appurtenances, water retaining structures including protecton of all schemee components from damages/ theft undertaking legal actions for such untoward incidents, preventive maintenance, disinfection and deliverance of water as per quality standards and supply of earmarked quantity of water to the beneficiaries as per Annexure .........., carrying out the O&M as per standard operating procedures, Acts and rules in force and as directed by TWAD Board Oficers and excluding cost towards attending leak, burst repair and replacement works to electro mechanical installations consumables for disinfection of water, cleaning of all water retaining structure, electricity .
Repair & Renewals and Leak & Bursts :
Attending Leaks in the PVC pipelines of this CWSS for the following items, as per the standard procedure including earthwork excavation, dewatering, removing, relaying, jointing, civil works, cost of materials and all other incidental charges, etc complete within the stipulated time limit as directed by the TWAD Board officers.
PVC 4 KSC Pipes_Minor Leak
63mm OD PVC 4 KSC pipes_Minor Leak
75mm OD PVC 4 KSC pipes_Minor Leak
90mm OD PVC 4 KSC pipes_Minor Leak
110mm OD PVC 4 KSC pipes_Minor Leak
140mm OD PVC 4 KSC pipes_Minor Leak
PVC 4 KSC Pipes_Major Leak
63mm OD PVC 4 KSC pipes_Major Leak
75mm OD PVC 4 KSC pipes_Major Leak
90mm OD PVC 4 KSC pipes_Major Leak
110mm OD PVC 4 KSC pipes_Major Leak
140mm OD PVC 4 KSC pipes_Major Leak
Attending Leaks/Bursts in the HDPE pipelines of this CWSS for the following items, as per the standard procedure including earthwork excavation, dewatering, removing, relaying, jointing by Electro fusion/butt Joint, civil works, cost of materials and all other incidental charges, etc complete within the stipulated time limit as directed by the TWAD Board officers.
HDPE PN 6 Pipes_Minor Leaks
90mm HDPE PN 6 pipes_Minor Leak
110mm HDPE PN 6 pipes_Minor Leak
140mm HDPE PN 6 pipes_Minor Leak
HDPE PN 6 Pipes_Major Leaks
90mm HDPE PN 6 pipes_Major Leak
110mm HDPE PN 6 pipes_Major Leak
140mm HDPE PN 6 pipes_Major Leak
Attending leaks and bursts in GI pipes of various sizes including Supply and delivery of following G I PIPES (MEDIUM) AS PER IS 1239/PART I/2004 and Lowering GI pipes and specials in the trenches and laying to proper grade and alignment, jointing with GI Specials and as directed by the TWAD Officers
50mm GI Pipe leak above GL
65mm GI Pipe leak above GL
80mm GI Pipe leak above GL
Labour for cutting open B.T. Roads (or) Maccadam road for laying water mains - 15 cm thick (SOR VOL II P.195)
For all size Pumping mains
Road Restoration with PCC 1:2:4 using 20 mm HBGS for the Concrete Road cut Portion after the pipes are laid, joined and tested complete and as directed by TWAD Board Officers - 15 cm thick
For all size Pumping mains
MATERIALS
Supply and delivery of following sizes of HDPE PIPES - PE 100 AS PER IS 4984/2016 (Pre-Compounded Resin) inclusive of transportation charges to stockyard excluding unloading anywhere in Tamilnadu etc, complete and as directed by the TWAD Board officers. (SOR VOL II P.14)
140mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
75mm HDPE PN 6
63mm HDPE PN 6
CIVIL WORKS
Earth work excavation and depositing on bank with initial lead of 10 m and initial lift of 2m in narrow trenches for laying of pipes for water supply in the following types of soil
Hard stiff clay, stiff black cotton, hard red earth, shales, murrum gravel, stoney earth and earth mixed with small size boulders and hard gravelly soil. (SOR VOL II P.192)
140mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
75mm HDPE PN 6
63mm HDPE PN 6
Lowering HDPE pipes and specials to trench and laying to proper grade and alignment and as directed by the TWAD Officers. (SOR VOL II P.171)
140mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
75mm HDPE PN 6
63mm HDPE PN 6
Jointing HDPE Pipes and Specials by butt fusion welding / electro fusion welding joints using fusion equipment as per ISO 21307-2011 and as per IS 7634 (part-2) : 2012 including cost of hire charges for butt fusion equipment power supply arrangements etc., complete as per directed by TWAD Board Officers. (SOR VOL II P.184)
140mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
75mm HDPE PN 6
63mm HDPE PN 6
Refiling with excavated sand or other loose soil complying with standerd specification in layers of 15 cm thick well rammed and consolidated after pipes and specials are laid and tested. (SOR VOL II P.192)
140mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
75mm HDPE PN 6
63mm HDPE PN 6
Pumpsets
Carrying out the following repair works occuring during the maintenance period in the Electrical, Mechanical and Elctro-mechanical items to bring back the scheme / components into normal running conditition as per standard specification including all labour charges, cost of materials and all incidental charges within the stipulated time limit etc., complete as specified in Clause 2.8 of General conditions of Contract Part II etc as directed by TWAD Board officers
Attending the Rewinding, Repair and Renewal works in various capacity Open Well Submersible Pumpsets
Removing the Submersible pumpset by using tripod set after disconnecting the power supply cable and delivery pipe line fittings
5HP -OWS
7.5HP -OWS
10HP -OWS
Transporting the pumpset from Pump House to work shop.
5HP -OWS
7.5HP -OWS
10HP -OWS
Rewinding the submersible motor using best quality winding wire including cost of wire, Sleeve, other insulating and fibre class materials after deducting the cost of old materials.
5HP -OWS
7.5HP -OWS
10HP -OWS
Reconditioning the worn-out shaft and fittings, impeller and Gun Metal/ SS Bushes including cost of lath work & labour charges etc.,
5HP -OWS
7.5HP -OWS
10HP -OWS
Replacement of carbon type thrust bearing and pumpside Gun Metal Bush including cost of labour charges after deducting the cost of old material
5HP -OWS
7.5HP -OWS
10HP -OWS
Transporting charges for Submersible pumpset from work shop to Pump House after attending repair works.
5HP -OWS
7.5HP -OWS
10HP -OWS
Re-erection of pumpset in the Sump / Well by using tripod set and required Rubber washer and Bolt & Nuts and connecting the power supply cable and delivery pipeline arrangements testing to trial pumping.
5HP -OWS
7.5HP -OWS
10HP -OWS
SUPPLY AND DELIVERY OF SERVICE CONNECTION ACCESSORIES L.T. 1100V PVC ALUMINIUM ARMOURED UNDER GROUND CABLE WITH ISI MARK
25 Sq.mm 3.5 Core
35 Sq.mm 3.5 Core
50 Sq.mm 3.5 Core
SUPPLY AND DELIVERY OF L.T. CABLES following size sq mm 3 CORE 1.1 KV GRADE ARMOURED ALUMINIUM CONDUCTOR CROSS LINKED POLY ETHYLENE INSULATED PVC SHEATHED CABLES CONFORMING TO IS 7098 (PART I)/1988 WITH ISI MARKING
50 Sq.mm 3 Core
SUPPLY AND DELIVERY OF PVC INSULATED AND SHEATHED following sq mm 3 CORE FLAT TYPE COPPER CABLE CONFORMING TO IS 694/1989
SUPPLY AND DELIVERY OF 150mm dia Pressure Gauge and Vaccum guage including all accessories as per specification (For Suction and Delivery to be mounted on wall on Teak Wood Board)
Supply, delivey and fixing of MOULDED CASE CIRCUIT BREAKER (MCCB) WITH THERMO MAGNETIC RELEASE - 4 Pole
Range - 63/100A
Supply, delivey and fixing of RATE FOR MIXED DI-ELECTRIC CAPACITOR WITH TNEB TEST CERTIFICATE WITH ACCESSORIES INCLUDING BANKING CONFORMIING TO IS 2834.
Supply, delivey and fixing of Electro magnetic contactors of suitable capacity in AC Three Phase rating, conforming to IS/IEC 60947-4-1.
Supply, delivey and fixing of Overload Relays: Directly operated Bimetallic Thermal overload relay which operates in case of overload and also in case of under voltage with manual and auto reset mode.
Supply, delivey and fixing of Preventer – Single Phasing - Electric Motor protection device against single phasing. The device should protect the motor against single phasing, reverse phasing and unbalance supply. The device should be suitable for any auxillary device and have provisions for mounting in panel boards. Operate without need of any auxiliary supply.
Electric Motor protection device against dry running. The device should protect the motor against Dry running. The device should be suitable for any auxillary device and have provisions for mounting in panel boards. Operate without need of any auxiliary supply
Supply, delivey and fixing of FUSE UNITS (ANCHOR /EQUIVALENT)
63 Amps Porcelain fuse unit (500 V)
100 Amps Porcelain fuse unit (500 V)
200 Amps Porcelain fuse unit (500 V)
Supply, delivey and fixing of CHANGE OVER SWITCHES
16 Amps three phase 500 V 4 pole Change over switch
32 Amps three phase 500 V 4 pole Change over switch
63 Amps three phase 500 V 4 pole Change over switch
100 Amps three phase 500 V 4 pole Change over switch
Supply, delivey and fixing of PVC INSULATED SINGLE CORE MULTI STRAND FIRE RETARDANT FLEXIBLE COPPER CABLE WITH ISI MARK CONFORMING TO IS
Supply, delivey and fixing of HRC - FUSES - HIGHER END
HRC - 16 Amps
HRC - 32 Amps
HRC - 63 Amps
HRC - 125 Amps
Supply and delivery of the following Electrical Works :consumable items at the site of work to carryout the general maintenace works
Voltmeter Digital - Three Phase Class 1-AC
Ammeter Digital - Three Phase Class 1-1A
20W 4 Feet LED Fitting with LED (Higher end)
LED OUTDOOR FITTINGS (LIGHT EMITTING DIODE) LOWER END 25W LED Street Light Fitting with LED
Supply and delivery of the following consumable items for Pump Set repairs at the site of work to carryout the general maintenace works
50mm GM Gate valve
80mm GM Gate valve
R I Sheet
Bolts and Nuts - All sizes
50mm GI Pipe
80mm GI Pipe
100mm GI pipe
Supply, delivery and fixing of DI D/F Gate sluice/scour valves (soft seated) resilient seated soft sealing Gate Valves(Sluice Valves) with body Bonnet of Ductile cast iron of Grade GGG 40 or equivalent grade, Wedge fully rubber lined with EPDM replaceable spindle nut without gland packing and with 3 O- Ring protection on the shaft and seals of NBR and the valves should be of Vacuum tight and 100% leak proof with face to face dimensions as per BS 5163- 89/ISI 14846-2000/DIN 3202 F4. All the valves should be with electrostatic powder coating both inside and out side with pocket less straight through body passage. All the valves are to be compatible for buried application with pressure rating PN 10/16 and with 5 years warranty.
100mm DI Gate Valve
Supply, delivey and fixing of C.I. DOUBLE AIR VALVE AS PER ISI 14845/2000 AND WITH 5 YEARS WARRANTY
50mm CI Air Valve
SUMP CLEANING
Cleaning of all storage points like sumps, elevated reservoirs of various capacities available in this scheme at a frequency of once in two months including scrapping the inner side of compartment completely, scouring / dewatering / desilting using required machineries, materials, labour and all other incidental charges, application of bleaching powder/ solution etc complete.
For 175001 to 200000 lit cap sump
Desilting light or sandysoil or silt from collection well below water level including the charges for special tools & plants and air compressor etc complete
Bleaching powder of 34% concentration as per standard specification.
COMBINED WATER SUPPLY SCHEME TO UKKAL KOTTAKARAI AND 13 OTHER HABITATIONSUNION IN ANAKKAVUR UNION OF TIRUVANNAMALAI DISTRICT
Attending Leaks in the PVC pipelines of this CWSS for the following items, as per the standard procedure including earthwork excavation, dewatering, removing, relaying, jointing, civil works, cost of materials and all other incidental charges, etc complete within the stipulated time limit as directed by the TWAD Board officers.
PVC 4 KSC Pipes_Minor Leak
63mm OD PVC 4 KSC pipes_Minor Leak
75mm OD PVC 4 KSC pipes_Minor Leak
90mm OD PVC 4 KSC pipes_Minor Leak
110mm OD PVC 4 KSC pipes_Minor Leak
PVC 4 KSC Pipes_Major Leak
63mm OD PVC 4 KSC pipes_Major Leak
75mm OD PVC 4 KSC pipes_Major Leak
90mm OD PVC 4 KSC pipes_Major Leak
110mm OD PVC 4 KSC pipes_Major Leak
Attending Leaks/Bursts in the HDPE pipelines of this CWSS for the following items, as per the standard procedure including earthwork excavation, dewatering, removing, relaying, jointing by Electro fusion/butt Joint, civil works, cost of materials and all other incidental charges, etc complete within the stipulated time limit as directed by the TWAD Board officers.
HDPE PN 6 Pipes_Minor Leaks
110mm HDPE PN 6 pipes_Minor Leak
HDPE PN 6 Pipes_Major Leaks
110mm HDPE PN 6 pipes_Major Leak
Attending leaks and bursts in GI pipes of various sizes including Supply and delivery of following G I PIPES (MEDIUM) AS PER IS 1239/PART I/2004 and Lowering GI pipes and specials in the trenches and laying to proper grade and alignment, jointing with GI Specials and as directed by the TWAD Officers
50mm GI Pipe leak above GL
65mm GI Pipe leak above GL
80mm GI Pipe leak above GL
100mm GI Pipe leak above GL
Labour for cutting open B.T. Roads (or) Maccadam road for laying water mains - 15 cm thick (SOR VOL II P.195)
For all size Pumping mains
Road Restoration with PCC 1:2:4 using 20 mm HBGS for the Concrete Road cut Portion after the pipes are laid, joined and tested complete and as directed by TWAD Board Officers - 15 cm thick
For all size Pumping mains
MATERIALS
Supply and delivery of following sizes of HDPE PIPES - PE 100 AS PER IS 4984/2016 (Pre-Compounded Resin) inclusive of transportation charges to stockyard excluding unloading anywhere in Tamilnadu etc, complete and as directed by the TWAD Board officers. (SOR VOL II P.14)
110mm HDPE PN 6
90mm HDPE PN 6
75mm HDPE PN 6
63mm HDPE PN 6
CIVIL WORKS
Earth work excavation and depositing on bank with initial lead of 10 m and initial lift of 2m in narrow trenches for laying of pipes for water supply in the following types of soil
Hard stiff clay, stiff black cotton, hard red earth, shales, murrum gravel, stoney earth and earth mixed with small size boulders and hard gravelly soil. (SOR VOL II P.192)
110mm HDPE PN 6
90mm HDPE PN 6
75mm HDPE PN 6
63mm HDPE PN 6
Lowering HDPE pipes and specials to trench and laying to proper grade and alignment and as directed by the TWAD Officers. (SOR VOL II P.171)
110mm HDPE PN 6
90mm HDPE PN 6
75mm HDPE PN 6
63mm HDPE PN 6
Jointing HDPE Pipes and Specials by butt fusion welding / electro fusion welding joints using fusion equipment as per ISO 21307-2011 and as per IS 7634 (part-2) : 2012 including cost of hire charges for butt fusion equipment power supply arrangements etc., complete as per directed by TWAD Board Officers. (SOR VOL II P.184)
110mm HDPE PN 6
90mm HDPE PN 6
75mm HDPE PN 6
63mm HDPE PN 6
Refiling with excavated sand or other loose soil complying with standerd specification in layers of 15 cm thick well rammed and consolidated after pipes and specials are laid and tested. (SOR VOL II P.192)
110mm HDPE PN 6
90mm HDPE PN 6
75mm HDPE PN 6
63mm HDPE PN 6
Pumpsets
Carrying out the following repair works occuring during the maintenance period in the Electrical, Mechanical and Elctro-mechanical items to bring back the scheme / components into normal running conditition as per standard specification including all labour charges, cost of materials and all incidental charges within the stipulated time limit etc., complete as specified in Clause 2.8 of General conditions of Contract Part II etc as directed by TWAD Board officers
Attending the Rewinding, Repair and Renewal works in various capacity Open Well Submersible Pumpsets
Removing the Submersible pumpset by using tripod set after disconnecting the power supply cable and delivery pipe line fittings
5HP -OWS
7.5HP -OWS
15HP -OWS
20HP -OWS
Transporting the pumpset from Pump House to work shop.
5HP -OWS
7.5HP -OWS
15HP -OWS
20HP -OWS
Rewinding the submersible motor using best quality winding wire including cost of wire, Sleeve, other insulating and fibre class materials after deducting the cost of old materials.
5HP -OWS
7.5HP -OWS
15HP -OWS
20HP -OWS
Reconditioning the worn-out shaft and fittings, impeller and Gun Metal/ SS Bushes including cost of lath work & labour charges etc.,
5HP -OWS
7.5HP -OWS
15HP -OWS
20HP -OWS
Replacement of carbon type thrust bearing and pumpside Gun Metal Bush including cost of labour charges after deducting the cost of old material
5HP -OWS
7.5HP -OWS
15HP -OWS
20HP -OWS
Transporting charges for Submersible pumpset from work shop to Pump House after attending repair works.
5HP -OWS
7.5HP -OWS
15HP -OWS
20HP -OWS
Re-erection of pumpset in the Sump / Well by using tripod set and required Rubber washer and Bolt & Nuts and connecting the power supply cable and delivery pipeline arrangements testing to trial pumping.
5HP -OWS
7.5HP -OWS
15HP -OWS
20HP -OWS
SUPPLY AND DELIVERY OF SERVICE CONNECTION ACCESSORIES L.T. 1100V PVC ALUMINIUM ARMOURED UNDER GROUND CABLE WITH ISI MARK
25 Sq.mm 3.5 Core
35 Sq.mm 3.5 Core
50 Sq.mm 3.5 Core
SUPPLY AND DELIVERY OF L.T. CABLES following size sq mm 3 CORE 1.1 KV GRADE ARMOURED ALUMINIUM CONDUCTOR CROSS LINKED POLY ETHYLENE INSULATED PVC SHEATHED CABLES CONFORMING TO IS 7098 (PART I)/1988 WITH ISI MARKING
35 Sq.mm 3 Core
SUPPLY AND DELIVERY OF PVC INSULATED AND SHEATHED following sq mm 3 CORE FLAT TYPE COPPER CABLE CONFORMING TO IS 694/1989
SUPPLY AND DELIVERY OF 150mm dia Pressure Gauge and Vaccum guage including all accessories as per specification (For Suction and Delivery to be mounted on wall on Teak Wood Board)
Supply, delivey and fixing of MOULDED CASE CIRCUIT BREAKER (MCCB) WITH THERMO MAGNETIC RELEASE - 4 Pole
Range - 63/100A
Range - 125A
Supply, delivey and fixing of RATE FOR MIXED DI-ELECTRIC CAPACITOR WITH TNEB TEST CERTIFICATE WITH ACCESSORIES INCLUDING BANKING CONFORMIING TO IS 2834.
Supply, delivey and fixing of Electro magnetic contactors of suitable capacity in AC Three Phase rating, conforming to IS/IEC 60947-4-1.
Supply, delivey and fixing of Overload Relays: Directly operated Bimetallic Thermal overload relay which operates in case of overload and also in case of under voltage with manual and auto reset mode.
Supply, delivey and fixing of Preventer – Single Phasing - Electric Motor protection device against single phasing. The device should protect the motor against single phasing, reverse phasing and unbalance supply. The device should be suitable for any auxillary device and have provisions for mounting in panel boards. Operate without need of any auxiliary supply.
Electric Motor protection device against dry running. The device should protect the motor against Dry running. The device should be suitable for any auxillary device and have provisions for mounting in panel boards. Operate without need of any auxiliary supply
Supply, delivey and fixing of FUSE UNITS (ANCHOR /EQUIVALENT)
63 Amps Porcelain fuse unit (500 V)
100 Amps Porcelain fuse unit (500 V)
200 Amps Porcelain fuse unit (500 V)
Supply, delivey and fixing of CHANGE OVER SWITCHES
100 Amps three phase 500 V 4 pole Change over switch
Supply, delivey and fixing of PVC INSULATED SINGLE CORE MULTI STRAND FIRE RETARDANT FLEXIBLE COPPER CABLE WITH ISI MARK CONFORMING TO IS
Supply, delivey and fixing of HRC - FUSES - HIGHER END
HRC - 16 Amps
HRC - 32 Amps
HRC - 63 Amps
HRC - 125 Amps
Supply and delivery of the following Electrical Works :consumable items at the site of work to carryout the general maintenace works
Voltmeter Digital - Three Phase Class 1-AC
Ammeter Digital - Three Phase Class 1-1A
20W 4 Feet LED Fitting with LED (Higher end)
LED OUTDOOR FITTINGS (LIGHT EMITTING DIODE) LOWER END 25W LED Street Light Fitting with LED
Supply and delivery of the following consumable items for Pump Set repairs at the site of work to carryout the general maintenace works
50mm GM Gate valve
80mm GM Gate valve
R I Sheet
Bolts and Nuts - All sizes
50mm GI Pipe
80mm GI Pipe
100mm GI pipe
Supply, delivery and fixing of DI D/F Gate sluice/scour valves (soft seated) resilient seated soft sealing Gate Valves(Sluice Valves) with body Bonnet of Ductile cast iron of Grade GGG 40 or equivalent grade, Wedge fully rubber lined with EPDM replaceable spindle nut without gland packing and with 3 O- Ring protection on the shaft and seals of NBR and the valves should be of Vacuum tight and 100% leak proof with face to face dimensions as per BS 5163- 89/ISI 14846-2000/DIN 3202 F4. All the valves should be with electrostatic powder coating both inside and out side with pocket less straight through body passage. All the valves are to be compatible for buried application with pressure rating PN 10/16 and with 5 years warranty.
150mm DI Gate Valve
Supply, delivey and fixing of C.I. DOUBLE AIR VALVE AS PER ISI 14845/2000 AND WITH 5 YEARS WARRANTY
50mm CI Air Valve
SUMP CLEANING
Cleaning of all storage points like sumps, elevated reservoirs of various capacities available in this scheme at a frequency of once in two months including scrapping the inner side of compartment completely, scouring / dewatering / desilting using required machineries, materials, labour and all other incidental charges, application of bleaching powder/ solution etc complete.
For 15001 to 30000 lit cap sump
Desilting light or sandysoil or silt from collection well below water level including the charges for special tools & plants and air compressor etc complete
Bleaching powder of 34% concentration as per standard specification.
COMBINED WATER SUPPLY SCHEME TO UMAYALPURAM, VEMBAKKAM H AND 10 OTHER HABITATIONS IN VEMBAKKAM UNION OF TIRUVANNAMALAI DISTRICT
Operation and Maintenance of the Electro Mechanical installations, equipments, components, pipelines valves and appurtenances, water retaining structures including protecton of all schemee components from damages/ theft undertaking legal actions for such untoward incidents, preventive maintenance, disinfection and deliverance of water as per quality standards and supply of earmarked quantity of water to the beneficiaries as per Annexure .........., carrying out the O&M as per standard operating procedures, Acts and rules in force and as directed by TWAD Board Oficers and excluding cost towards attending leak, burst repair and replacement works to electro mechanical installations consumables for disinfection of water, cleaning of all water retaining structure, electricity .
Repair & Renewals and Leak & Bursts :
Attending Leaks in the PVC pipelines of this CWSS for the following items, as per the standard procedure including earthwork excavation, dewatering, removing, relaying, jointing, civil works, cost of materials and all other incidental charges, etc complete within the stipulated time limit as directed by the TWAD Board officers.
PVC 4 KSC Pipes_Minor Leak
63mm OD PVC 4 KSC pipes_Minor Leak
75mm OD PVC 4 KSC pipes_Minor Leak
90mm OD PVC 4 KSC pipes_Minor Leak
110mm OD PVC 4 KSC pipes_Minor Leak
PVC 4 KSC Pipes_Major Leak
63mm OD PVC 4 KSC pipes_Major Leak
75mm OD PVC 4 KSC pipes_Major Leak
90mm OD PVC 4 KSC pipes_Major Leak
110mm OD PVC 4 KSC pipes_Major Leak
Attending Leaks/Bursts in the HDPE pipelines of this CWSS for the following items, as per the standard procedure including earthwork excavation, dewatering, removing, relaying, jointing by Electro fusion/butt Joint, civil works, cost of materials and all other incidental charges, etc complete within the stipulated time limit as directed by the TWAD Board officers.
HDPE PN 6 Pipes_Minor Leaks
63mm HDPE PN 6 pipes_Minor Leak
110mm HDPE PN 6 pipes_Minor Leak
125mm HDPE PN 6 pipes_Minor Leak
160mm HDPE PN 6 pipes_Minor Leak
HDPE PN 6 Pipes_Major Leaks
63mm HDPE PN 6 pipes_Major Leak
110mm HDPE PN 6 pipes_Major Leak
125mm HDPE PN 6 pipes_Major Leak
160mm HDPE PN 6 pipes_Major Leak
Attending leaks and bursts in GI pipes of various sizes including Supply and delivery of following G I PIPES (MEDIUM) AS PER IS 1239/PART I/2004 and Lowering GI pipes and specials in the trenches and laying to proper grade and alignment, jointing with GI Specials and as directed by the TWAD Officers
50mm GI Pipe leak above GL
80mm GI Pipe leak above GL
125mm GI Pipe leak above GL
150mm GI Pipe leak above GL
Attending joint (Collar) Leaks in the AC pipelines of this CWSS for the following items, as per the standard procedure including earthwork excavation, dewatering, removing, relaying, jointing, civil works, cost of materials and all incidental charges, etc complete within the stipulated time limit as specified in Clause 2.6.4 of General conditions of Contract
AC Pipe_Collar Leak
150mm AC_Collar Leak
AC Pipe_Minor Leak centre crack
150mm AC Pipe_MS Cut Barrel
Labour for cutting open B.T. Roads (or) Maccadam road for laying water mains - 15 cm thick (SOR VOL II P.195)
For all size Pumping mains
Road Restoration with PCC 1:2:4 using 20 mm HBGS for the Concrete Road cut Portion after the pipes are laid, joined and tested complete and as directed by TWAD Board Officers - 15 cm thick
For all size Pumping mains
MATERIALS
Supply and delivery of following sizes of HDPE PIPES - PE 100 AS PER IS 4984/2016 (Pre-Compounded Resin) inclusive of transportation charges to stockyard excluding unloading anywhere in Tamilnadu etc, complete and as directed by the TWAD Board officers. (SOR VOL II P.14)
160mm HDPE PN 6
125mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
75mm HDPE PN 6
63mm HDPE PN 6
CIVIL WORKS
Earth work excavation and depositing on bank with initial lead of 10 m and initial lift of 2m in narrow trenches for laying of pipes for water supply in the following types of soil
Hard stiff clay, stiff black cotton, hard red earth, shales, murrum gravel, stoney earth and earth mixed with small size boulders and hard gravelly soil. (SOR VOL II P.192)
160mm HDPE PN 6
125mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
75mm HDPE PN 6
63mm HDPE PN 6
Lowering HDPE pipes and specials to trench and laying to proper grade and alignment and as directed by the TWAD Officers. (SOR VOL II P.171)
160mm HDPE PN 6
125mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
75mm HDPE PN 6
63mm HDPE PN 6
Jointing HDPE Pipes and Specials by butt fusion welding / electro fusion welding joints using fusion equipment as per ISO 21307-2011 and as per IS 7634 (part-2) : 2012 including cost of hire charges for butt fusion equipment power supply arrangements etc., complete as per directed by TWAD Board Officers. (SOR VOL II P.184)
160mm HDPE PN 6
125mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
75mm HDPE PN 6
63mm HDPE PN 6
Refiling with excavated sand or other loose soil complying with standerd specification in layers of 15 cm thick well rammed and consolidated after pipes and specials are laid and tested. (SOR VOL II P.192)
160mm HDPE PN 6
125mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
75mm HDPE PN 6
63mm HDPE PN 6
Pumpsets
Carrying out the following repair works occuring during the maintenance period in the Electrical, Mechanical and Elctro-mechanical items to bring back the scheme / components into normal running conditition as per standard specification including all labour charges, cost of materials and all incidental charges within the stipulated time limit etc., complete as specified in Clause 2.8 of General conditions of Contract Part II etc as directed by TWAD Board officers
Attending the Rewinding, Repair and Renewal works in various capacity Open Well Submersible Pumpsets
Removing the Submersible pumpset by using tripod set after disconnecting the power supply cable and delivery pipe line fittings
1HP -OWS
5HP -OWS
15HP -OWS
20HP -OWS
Transporting the pumpset from Pump House to work shop.
1HP -OWS
5HP -OWS
15HP -OWS
20HP -OWS
Rewinding the submersible motor using best quality winding wire including cost of wire, Sleeve, other insulating and fibre class materials after deducting the cost of old materials.
1HP -OWS
5HP -OWS
15HP -OWS
20HP -OWS
Reconditioning the worn-out shaft and fittings, impeller and Gun Metal/ SS Bushes including cost of lath work & labour charges etc.,
1HP -OWS
5HP -OWS
15HP -OWS
20HP -OWS
Replacement of carbon type thrust bearing and pumpside Gun Metal Bush including cost of labour charges after deducting the cost of old material
1HP -OWS
5HP -OWS
15HP -OWS
20HP -OWS
Transporting charges for Submersible pumpset from work shop to Pump House after attending repair works.
1HP -OWS
5HP -OWS
15HP -OWS
20HP -OWS
Re-erection of pumpset in the Sump / Well by using tripod set and required Rubber washer and Bolt & Nuts and connecting the power supply cable and delivery pipeline arrangements testing to trial pumping.
1HP -OWS
5HP -OWS
15HP -OWS
20HP -OWS
SUPPLY AND DELIVERY OF SERVICE CONNECTION ACCESSORIES L.T. 1100V PVC ALUMINIUM ARMOURED UNDER GROUND CABLE WITH ISI MARK
25 Sq.mm 3.5 Core
35 Sq.mm 3.5 Core
50 Sq.mm 3.5 Core
SUPPLY AND DELIVERY OF L.T. CABLES following size sq mm 3 CORE 1.1 KV GRADE ARMOURED ALUMINIUM CONDUCTOR CROSS LINKED POLY ETHYLENE INSULATED PVC SHEATHED CABLES CONFORMING TO IS 7098 (PART I)/1988 WITH ISI MARKING
35 Sq.mm 3 Core
95 Sq.mm 3 Core
SUPPLY AND DELIVERY OF PVC INSULATED AND SHEATHED following sq mm 3 CORE FLAT TYPE COPPER CABLE CONFORMING TO IS 694/1989
SUPPLY AND DELIVERY OF 150mm dia Pressure Gauge and Vaccum guage including all accessories as per specification (For Suction and Delivery to be mounted on wall on Teak Wood Board)
Supply, delivey and fixing of MOULDED CASE CIRCUIT BREAKER (MCCB) WITH THERMO MAGNETIC RELEASE - 4 Pole
Range - 63/100A
Range - 125A
Supply, delivey and fixing of RATE FOR MIXED DI-ELECTRIC CAPACITOR WITH TNEB TEST CERTIFICATE WITH ACCESSORIES INCLUDING BANKING CONFORMIING TO IS 2834.
Supply, delivey and fixing of Electro magnetic contactors of suitable capacity in AC Three Phase rating, conforming to IS/IEC 60947-4-1.
Supply, delivey and fixing of Overload Relays: Directly operated Bimetallic Thermal overload relay which operates in case of overload and also in case of under voltage with manual and auto reset mode.
Supply, delivey and fixing of Preventer – Single Phasing - Electric Motor protection device against single phasing. The device should protect the motor against single phasing, reverse phasing and unbalance supply. The device should be suitable for any auxillary device and have provisions for mounting in panel boards. Operate without need of any auxiliary supply.
Electric Motor protection device against dry running. The device should protect the motor against Dry running. The device should be suitable for any auxillary device and have provisions for mounting in panel boards. Operate without need of any auxiliary supply
Supply, delivey and fixing of FUSE UNITS (ANCHOR /EQUIVALENT)
63 Amps Porcelain fuse unit (500 V)
100 Amps Porcelain fuse unit (500 V)
200 Amps Porcelain fuse unit (500 V)
Supply, delivey and fixing of CHANGE OVER SWITCHES
16 Amps three phase 500 V 4 pole Change over switch
32 Amps three phase 500 V 4 pole Change over switch
100 Amps three phase 500 V 4 pole Change over switch
Supply, delivey and fixing of PVC INSULATED SINGLE CORE MULTI STRAND FIRE RETARDANT FLEXIBLE COPPER CABLE WITH ISI MARK CONFORMING TO IS
Supply, delivey and fixing of HRC - FUSES - HIGHER END
HRC - 16 Amps
HRC - 32 Amps
HRC - 63 Amps
HRC - 125 Amps
Supply and delivery of the following Electrical Works :consumable items at the site of work to carryout the general maintenace works
Voltmeter Digital - Three Phase Class 1-AC
Ammeter Digital - Three Phase Class 1-1A
20W 4 Feet LED Fitting with LED (Higher end)
LED OUTDOOR FITTINGS (LIGHT EMITTING DIODE) LOWER END 25W LED Street Light Fitting with LED
Supply and delivery of the following consumable items for Pump Set repairs at the site of work to carryout the general maintenace works
50mm GM Gate valve
80mm GM Gate valve
R I Sheet
Bolts and Nuts - All sizes
50mm GI Pipe
65mm GI Pipe
80mm GI Pipe
100mm GI pipe
Supply, delivery and fixing of DI D/F Gate sluice/scour valves (soft seated) resilient seated soft sealing Gate Valves(Sluice Valves) with body Bonnet of Ductile cast iron of Grade GGG 40 or equivalent grade, Wedge fully rubber lined with EPDM replaceable spindle nut without gland packing and with 3 O- Ring protection on the shaft and seals of NBR and the valves should be of Vacuum tight and 100% leak proof with face to face dimensions as per BS 5163- 89/ISI 14846-2000/DIN 3202 F4. All the valves should be with electrostatic powder coating both inside and out side with pocket less straight through body passage. All the valves are to be compatible for buried application with pressure rating PN 10/16 and with 5 years warranty.
100mm DI Gate Valve
Supply, delivey and fixing of C.I. DOUBLE AIR VALVE AS PER ISI 14845/2000 AND WITH 5 YEARS WARRANTY
50mm CI Air Valve
SUMP CLEANING
Cleaning of all storage points like sumps, elevated reservoirs of various capacities available in this scheme at a frequency of once in two months including scrapping the inner side of compartment completely, scouring / dewatering / desilting using required machineries, materials, labour and all other incidental charges, application of bleaching powder/ solution etc complete.
For 5000 to 15000 lit cap sump
For 30001 to 45000 lit cap sump
Desilting light or sandysoil or silt from collection well below water level including the charges for special tools & plants and air compressor etc complete
Provision for replacement of existing pipelines which are damaged due to widening of SH, NH and NHAI Roads and other line departments
Bleaching powder of 34% concentration as per standard specification.
COMBINED WATER SUPPLY SCHEME TO VINNAMANGALAM AND 13 OTHER HABITATIONS IN CHEYYAR OF TIRUVANNAMALAI DISTRICT
Operation and Maintenance of the Electro Mechanical installations, equipments, components, pipelines valves and appurtenances, water retaining structures including protecton of all schemee components from damages/ theft undertaking legal actions for such untoward incidents, preventive maintenance, disinfection and deliverance of water as per quality standards and supply of earmarked quantity of water to the beneficiaries as per Annexure .........., carrying out the O&M as per standard operating procedures, Acts and rules in force and as directed by TWAD Board Oficers and excluding cost towards attending leak, burst repair and replacement works to electro mechanical installations consumables for disinfection of water, cleaning of all water retaining structure, electricity .
Repair & Renewals and Leak & Bursts :
Attending Leaks in the PVC pipelines of this CWSS for the following items, as per the standard procedure including earthwork excavation, dewatering, removing, relaying, jointing, civil works, cost of materials and all other incidental charges, etc complete within the stipulated time limit as directed by the TWAD Board officers.
PVC 4 KSC Pipes_Minor Leak
90mm OD PVC 4 KSC pipes_Minor Leak
110mm OD PVC 4 KSC pipes_Minor Leak
140mm OD PVC 4 KSC pipes_Minor Leak
PVC 4 KSC Pipes_Major Leak
90mm OD PVC 4 KSC pipes_Major Leak
110mm OD PVC 4 KSC pipes_Major Leak
140mm OD PVC 4 KSC pipes_Major Leak
Attending Leaks/Bursts in the HDPE pipelines of this CWSS for the following items, as per the standard procedure including earthwork excavation, dewatering, removing, relaying, jointing by Electro fusion/butt Joint, civil works, cost of materials and all other incidental charges, etc complete within the stipulated time limit as directed by the TWAD Board officers.
HDPE PN 6 Pipes_Minor Leaks
110mm HDPE PN 6 pipes_Minor Leak
HDPE PN 6 Pipes_Major Leaks
110mm HDPE PN 6 pipes_Major Leak
Attending leaks and bursts in GI pipes of various sizes including Supply and delivery of following G I PIPES (MEDIUM) AS PER IS 1239/PART I/2004 and Lowering GI pipes and specials in the trenches and laying to proper grade and alignment, jointing with GI Specials and as directed by the TWAD Officers
50mm GI Pipe leak above GL
65mm GI Pipe leak above GL
80mm GI Pipe leak above GL
100mm GI Pipe leak above GL
125mm GI Pipe leak above GL
Labour for cutting open B.T. Roads (or) Maccadam road for laying water mains - 15 cm thick (SOR VOL II P.195)
For all size Pumping mains
Road Restoration with PCC 1:2:4 using 20 mm HBGS for the Concrete Road cut Portion after the pipes are laid, joined and tested complete and as directed by TWAD Board Officers - 15 cm thick
For all size Pumping mains
MATERIALS
Supply and delivery of following sizes of HDPE PIPES - PE 100 AS PER IS 4984/2016 (Pre-Compounded Resin) inclusive of transportation charges to stockyard excluding unloading anywhere in Tamilnadu etc, complete and as directed by the TWAD Board officers. (SOR VOL II P.14)
140mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
CIVIL WORKS
Earth work excavation and depositing on bank with initial lead of 10 m and initial lift of 2m in narrow trenches for laying of pipes for water supply in the following types of soil
Hard stiff clay, stiff black cotton, hard red earth, shales, murrum gravel, stoney earth and earth mixed with small size boulders and hard gravelly soil. (SOR VOL II P.192)
140mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
Lowering HDPE pipes and specials to trench and laying to proper grade and alignment and as directed by the TWAD Officers. (SOR VOL II P.171)
140mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
Jointing HDPE Pipes and Specials by butt fusion welding / electro fusion welding joints using fusion equipment as per ISO 21307-2011 and as per IS 7634 (part-2) : 2012 including cost of hire charges for butt fusion equipment power supply arrangements etc., complete as per directed by TWAD Board Officers. (SOR VOL II P.184)
140mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
Refiling with excavated sand or other loose soil complying with standerd specification in layers of 15 cm thick well rammed and consolidated after pipes and specials are laid and tested. (SOR VOL II P.192)
140mm HDPE PN 6
110mm HDPE PN 6
90mm HDPE PN 6
Pumpsets
Carrying out the following repair works occuring during the maintenance period in the Electrical, Mechanical and Elctro-mechanical items to bring back the scheme / components into normal running conditition as per standard specification including all labour charges, cost of materials and all incidental charges within the stipulated time limit etc., complete as specified in Clause 2.8 of General conditions of Contract Part II etc as directed by TWAD Board officers
Attending the Rewinding, Repair and Renewal works in various capacity Open Well Submersible Pumpsets
Removing the Submersible pumpset by using tripod set after disconnecting the power supply cable and delivery pipe line fittings
5HP -OWS
10HP -OWS
Transporting the pumpset from Pump House to work shop.
5HP -OWS
10HP -OWS
Rewinding the submersible motor using best quality winding wire including cost of wire, Sleeve, other insulating and fibre class materials after deducting the cost of old materials.
5HP -OWS
10HP -OWS
Reconditioning the worn-out shaft and fittings, impeller and Gun Metal/ SS Bushes including cost of lath work & labour charges etc.,
5HP -OWS
10HP -OWS
Replacement of carbon type thrust bearing and pumpside Gun Metal Bush including cost of labour charges after deducting the cost of old material
5HP -OWS
10HP -OWS
Transporting charges for Submersible pumpset from work shop to Pump House after attending repair works.
5HP -OWS
10HP -OWS
Re-erection of pumpset in the Sump / Well by using tripod set and required Rubber washer and Bolt & Nuts and connecting the power supply cable and delivery pipeline arrangements testing to trial pumping.
5HP -OWS
10HP -OWS
SUPPLY AND DELIVERY OF SERVICE CONNECTION ACCESSORIES L.T. 1100V PVC ALUMINIUM ARMOURED UNDER GROUND CABLE WITH ISI MARK
25 Sq.mm 3.5 Core
35 Sq.mm 3.5 Core
50 Sq.mm 3.5 Core
SUPPLY AND DELIVERY OF L.T. CABLES following size sq mm 3 CORE 1.1 KV GRADE ARMOURED ALUMINIUM CONDUCTOR CROSS LINKED POLY ETHYLENE INSULATED PVC SHEATHED CABLES CONFORMING TO IS 7098 (PART I)/1988 WITH ISI MARKING
35 Sq.mm 3 Core
50 Sq.mm 3 Core
SUPPLY AND DELIVERY OF PVC INSULATED AND SHEATHED following sq mm 3 CORE FLAT TYPE COPPER CABLE CONFORMING TO IS 694/1989
Supply, delivey and fixing of MOULDED CASE CIRCUIT BREAKER (MCCB) WITH THERMO MAGNETIC RELEASE - 4 Pole
Range - 63/100A
Supply, delivey and fixing of RATE FOR MIXED DI-ELECTRIC CAPACITOR WITH TNEB TEST CERTIFICATE WITH ACCESSORIES INCLUDING BANKING CONFORMIING TO IS 2834.
Supply, delivey and fixing of Electro magnetic contactors of suitable capacity in AC Three Phase rating, conforming to IS/IEC 60947-4-1.
Supply, delivey and fixing of Overload Relays: Directly operated Bimetallic Thermal overload relay which operates in case of overload and also in case of under voltage with manual and auto reset mode.
Supply, delivey and fixing of Preventer – Single Phasing - Electric Motor protection device against single phasing. The device should protect the motor against single phasing, reverse phasing and unbalance supply. The device should be suitable for any auxillary device and have provisions for mounting in panel boards. Operate without need of any auxiliary supply.
Electric Motor protection device against dry running. The device should protect the motor against Dry running. The device should be suitable for any auxillary device and have provisions for mounting in panel boards. Operate without need of any auxiliary supply
Supply, delivey and fixing of FUSE UNITS (ANCHOR /EQUIVALENT)
63 Amps Porcelain fuse unit (500 V)
100 Amps Porcelain fuse unit (500 V)
200 Amps Porcelain fuse unit (500 V)
Supply, delivey and fixing of CHANGE OVER SWITCHES
16 Amps three phase 500 V 4 pole Change over switch
32 Amps three phase 500 V 4 pole Change over switch
63 Amps three phase 500 V 4 pole Change over switch
100 Amps three phase 500 V 4 pole Change over switch
Supply, delivey and fixing of PVC INSULATED SINGLE CORE MULTI STRAND FIRE RETARDANT FLEXIBLE COPPER CABLE WITH ISI MARK CONFORMING TO IS
Supply, delivey and fixing of HRC - FUSES - HIGHER END
HRC - 16 Amps
HRC - 32 Amps
HRC - 63 Amps
HRC - 125 Amps
Supply and delivery of the following Electrical Works :consumable items at the site of work to carryout the general maintenace works
Voltmeter Digital - Three Phase Class 1-AC
Ammeter Digital - Three Phase Class 1-1A
20W 4 Feet LED Fitting with LED (Higher end)
LED OUTDOOR FITTINGS (LIGHT EMITTING DIODE) LOWER END 25W LED Street Light Fitting with LED
Supply and delivery of the following consumable items for Pump Set repairs at the site of work to carryout the general maintenace works
50mm GM Gate valve
65mm GM Gate valve
80mm GM Gate valve
R I Sheet
Bolts and Nuts - All sizes
50mm GI Pipe
65mm GI Pipe
80mm GI Pipe
100mm GI pipe
SUMP CLEANING
Cleaning of all storage points like sumps, elevated reservoirs of various capacities available in this scheme at a frequency of once in two months including scrapping the inner side of compartment completely, scouring / dewatering / desilting using required machineries, materials, labour and all other incidental charges, application of bleaching powder/ solution etc complete.
For 15001 to 30000 lit cap sump
Desilting light or sandysoil or silt from collection well below water level including the charges for special tools & plants and air compressor etc complete
Bleaching powder of 34% concentration as per standard specification.
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