O and M Thiruvannamalai

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

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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