REPAIRS / MAINTENANCE OF EXTERNAL WATER SUPPLY PIPE LINES, VALVES ,PUMP SETS,STARTERS AND CLEANING OF OH TANKS , UG SUMPS, SHALLOW WELLS AT MAIN CAMP, MADAMBAKKAM, NARENDRA PLACE AND 9 P S AT AF STATION TAMBARAM

Amount

Excavation in trenches not exceeding 1.5m wide and not exceeding 1.5m depth and getting out in soft/loose soil for laying pipe all as specified and directed .

Returning, filling in using excavated soil including spreading, levelling, watering and well ramming in layers not exceeding 25cm thick all as specified and directed.

Removing the excavated surplus soil to a distance not exceeding 50m and depositing where directed at a level not exceeding 1.5m above the starting point all as specified and directed.

Taking up or down old CI/GI Pipe of 150mm dia including fittings and branch connections from trenches etc if any for cleaning and refixing or removal complete all as specified and directed.

All as per item No 4 above but CI/GI pipe of 100mm dia

All as per item No 4 above but CI/GI pipe of 80mm dia

All as per item No 4 above but GI pipe of 50mm dia

All as per item No 4 above but GI pipe of 40mm dia

All as per item No 4 above but GI pipe of 25mm dia

All as per item No 4 above but GI pipe of 20mm dia

All as per item No 4 above but GI pipe of 15mm dia

Refixing old steel tubing and connections in new or old position of size 50mm dia (walls, ceiling, floors, etc) complete all as specified and directed. NOTE:Serviceable pipe obtained from taking down shall be refixed after cleaning.

All as per item No 12 above but GI pipe of 40mm dia

All as per item No 12 above but GI pipe of 25mm dia

All as per item No 12 above but GI pipe of 20mm dia

All as per item No 12 above but GI pipe of 15mm dia

Supply and laying of GI Medium grade pipe 100mm dia including necessary fittings such as bends, elbows, union etc in trenches complete all as specified and directed.

All as per item No 17 above but GI pipe of 80mm dia

All as per item No 17 above but GI pipe of 50mm dia

All as per item No 17 above but GI pipe of 40mm dia

All as per item No 17 above but GI pipe of 25mm dia

All as per item No 17 above but GI pipe of 20mm dia

All as per item No 17 above but GI pipe of 15mm dia

Supply and lay of GI pipe 100mm dia medium grade including fittings such as bends, reducer, elbows, union, clips, wall hooks, wooden plugs etc in wall/floor/sump/wells. including cutting through wall/floor/ sump/wells and making good the distrubed surfaces to match with existing complete all as specified and directed.

All as per item No 24 above but GI pipe of 80mm dia

All as per item No 24 above but GI pipe of 50mm dia

All as per item No 24 above but GI pipe of 40mm dia

All as per item No 24 above but GI pipe of 25mm dia

All as per item No 24 above but GI pipe of 20mm dia

All as per item No 24 above but GI pipe of 15mm dia

Supply and laying in trenches Ductile Iron spigot and socket pipes as per IS:8329/2000 Class K7 including EPDM rubber gasket suitable for push on rubber gasket joint with inside cement mortar lining and outside Zinc bitumen coating of size 150mm dia complete all as specified and directed. Make :- Electrosteel/Tata /Jindal

All as per item No.31 above but of 100mm dia

All as per item No.31 above but of 80mm dia

S&F cast iron fittings ISI marked such as bends (any type, radius any angle) tapers any type (straight or bend), increasing, decreasing or double socket etc) Tee pieces single branch, double branch,cross(all sockets and socket and spigot) collars, caps and plugs tail piece confirming to IS 1538/1993 complete all as specified and directed.

M&L for Run lead joint including all necessary, jointing material (old recovered lead from the leaking joint shall not be reused) for the following bore pipes all as specified and directed:-

(a) for 200mm dia

(b) for 150mm dia

(c) for 100mm dia

(d) for 80mm dia

S&F in repairs Gun metal gate valve confirm to IS:5312 non rustable spindle with cast iron wheel ISI marked suitable for screwing in GI pipes all as specified and directed for the following size : Make : Leader / Zoloto / Vir

50mm dia

40mm dia

25mm dia

20mm dia

15mm dia

Supply and fix in repairs CI Non Return valve conforming to IS-5312 Part - I ,PN 1.6 , flanged end joints with brass seating including jointing materials such as 3mm rubber gasket 01 No, 10mm dia nut & bolts and washers complete all as directed for 150mm size .Make :- Kirloskar/Upadhaya/ Kartar/ Leader

All as per Sl.item No. 46 here in before but 100mm dia

All as per Sl.item No. 46 here in before but 80mm dia

Supply and fix Gun metal Non Return Valve ISI marked suitable for screwing in GI pipes of 50mm dia and fixed all as specified and as directed.

Supply and fix in repairs CI sluice valve for 300mm bore pipes confirming to IS -14846 PN-1.0 non raising type both ends flanged with stainless steel spindle including jointing materials such as nuts, bolts washers and 3mm rubber gasket 02 Nos complete all as specified and directed. Make :- Kirloskar/Leader/Kartar

All as per Sl.item No. 50 here in before but for 150mm dia

All as per Sl.item No. 50 here in before but for 100mm dia

All as per Sl.item No. 50 here in before but for 80mm dia

M&L for cutting of existing road/ floor/ plinth/drain of any description of width and depth not exeeding 0.45 metre for taking out /laying of CI/DI/GI pipe line including necessary earth work excavation and making good the distrubed surface with PCC 1:3:6 type C1 using 20mm graded stone aggregate complete all as specified.

Supply and fix in repair galvanised iron valve flanges 8mm thick with suitable size drilled holes and suitable for screwing in GI pipe of 100mm bore including 3mm thick rubber washer complete all as specified.

All as per Sl.item No. 55 here in before but for 80mm dia

All as per Sl.item No. 55 here in before but for 50mm dia

Supply and fix in repair galvanised iron bolt,nut and washers of any dia and length as required at site all as specified and directed.

M&L for plain cement concrete 1:3:6 type C1 using 20mm graded stone aggregate as in foundation for valve chamber etc all specified and as directed.

M&L for brick work with sub class "B" bricks using old size bricks straight or curved on plan exceeding 6m mean radius,built in cement mortor 1:6 as in valve chamber complete all as specified and as directed.

M&L for rendering 10mm thick on fair faces of bricks ( inside of valve chamber) in cement mortor 1:4 finished the surface even and smooth without using extra cement,complete all as specified and directed.

S&F mild steel chamber cover made with mild steel sheet of 3.0mm thick for shutter angle iron frame including necessory welding and fixing arrangement and applying two coats of synthetic enamel paint over a coat of zinc chrome primer etc complete including taking down old MS sheet cover all as specified and directed.

M&L required for attending water supply complaints of any type , finding of fault/ defect and repairing the same including required jointing materials and making water supply functional complete all as specified and directed. Note :- Quoted rate shall be inclusive for following provisions: (i) Contractor shall deploy one plumber and one helper for collect the complaints from MES complaint cell as and when intimated by Engineer-in-Charge (ii) Tools,minor spares such as washer,nuts,white lead etc as required for rectifying complaints (iii) Contractor shall submit the details of rectification /non retification of complaints to Engineer-in-Charge after attending complaint.

Surface dressing not exceeding 15 cm deep and getting out in hard /dense soil around shallow well / pump houses inside the fencing and outside 3 meters wide around the edges of fencing all as specified and directed.

S&F in repair 12mm dia nylon rope suitable to match with existing for hanging pumpsets/submersible motors in well/sumps etc., complete all as specified and directed.

Supply only grafted cotton rope of size 6 mm dia

Supply only grafted cotton rope of size 8 mm dia

Supply only grafted cotton rope of size 10 mm dia

Supply only grafted cotton rope of size 12 mm dia

M&L for bailing out water from under ground sump, removing silt, sludge, mud, moss, efflorescent salts and algae growth etc., using steel wire brushes/ cleaning tools and washing all internal surfaces using cleaning materials like bleaching powder or other cleaning liquids and draining out the waste water completely including one coat of white washing all inside wall surfaces and roof including writing letter in bold with white paint of size not exceeding 10 cms height on black back ground with details such as sump capacity, date of cleaning and due date of next cleaning etc., for the following capacity all as specified and directed :-

Sump of capacity 2 Lakh gallons

Sump of capacity 60,000 gallons

Sump of capacity 50,000 gallons

Sump of capacity 30,000 gallons

Sump of capacity 10,000 gallons

Sump of capacity 6,000 gallons

Bailing out water from over head reservoir, removing silt, sludge, mud, moss, efflorescent salts and algae growth etc., using steel wire brushes/ cleaning tools and washing all internal surfaces using cleaning materials like bleaching powder or other cleaning liquids and draining out the waste water completely including one coat of white washing all inside wall surfaces and roof including writing letter in bold with white paint of size not exceeding 10 cms height on black back ground with details such as OHR capacity, date of cleaning and due date of next cleaning etc., for the following capacity all as specified and directed:-

Over Head Reservoir of capacity 1 Lakh gallons

Over Head Reservoir of capacity 50000 gallons

Over Head Reservoir of capacity 20000 gallons

Over Head Reservoir of capacity 15000 gallons

Over Head Reservoir of capacity 12000 gallons

S&F in repair 8mm dia nylon rope or suitable size to match with existing rope at the over head reservoir for showing water level etc., complete all as specified and directed.

Repair and replacement of water level indicator from over head reservior of capacity 50000 gallons to one lakh gallon by providing floating balls made out copper and iron weights,nylon ropes 8mm dia,wooden board with level marking,painting including fixing on RCC walls/columns complete all as specified and directed by Engineer - in - charge.

Repair and replacement of water level indicator from over head reservior of capacity 12000 gallons to 20000 lakh gallon by providing floating balls made out copper and iron weights,nylon ropes 8mm dia,wooden board with level marking,painting including fixing on RCC walls/columns complete all as specified and directed by Engineer - in - charge.

M&L for Collecting sample of water from shallow well/Pump houses and carry out all manadory tests at M/s.king Institute, Guindy or NABL approved Laboratories/ Govt Institutions/ Central & State Govt water analysis laboratories for the suitability of water for drinking purpose and submission of analysis report all as directed.

M&L for water pressure gauge,scale 0 to 60 kg/sqcm, white aluminium dial 200mm dia,black steel case,bottom connection with brass socket for 15mm pipe including taking down unserviceable meters all as specified and as directed by Engineer in charge.

Repairing centrifugal split type/monoblock pump set by replacing of the relevant spares taken and including packing, refixing and testing of motor of capacity 12.5/ 15 HP complete etc., all as specified and as directed.(Make:- Kirloskar ) Note: Spare parts/ accessories like shaft, bush, bearings, gland etc., shall be measured and paid separately under relevant items of this schedule.

Supply only the following spares suitable for 15 HP capacity centrifugal split type/monoblock pump set ( a) Impeller

(b) Pump Shaft

(c ) Shaft sleeve

(d) Bearing

(e) Gland collar complete with nut & bolts

Repairing centrifugal pump set by replacing of the relevant spares taken and including packing, refixing and testing of motor of capacity 7.5/5 HP complete etc., all as specified and directed (Make:- Kirloskar ) Note: Spare parts/ accessories like shaft, bush, bearings, gland etc., shall be measured and paid separately under relevant items of this schedule.

Supply only the following spares suitable for 7.5/5 HP capacity monoblock pump set : (a) Impeller

(b) Pump Shaft

(c ) Shaft sleeve

(d) Bearing

(e) Gland collar complete with nut & bolts

Taking out the submersible pump set/ monoblock submersible pump sets from its position and carrying out repairs after proper cleaning of impellers & shafts, including packing, refixing in position and testing of motor of capacity 5 HP/7.5 HP complete etc., all as specified and directed.(Make:- Kirloskar ) Note: Spare parts/ accessories like impeller, shaft, bush and sleeve etc., shall be measured and paid separately under relevant items of this schedule.

Supply only the following spares of 5 HP/ 7.5 HP capacity submersible pump set/ monoblock submersible pump set

Impeller with bowl

Pump Shaft

Shaft Sleeve

Taking out the submersible pump set/ monoblock submersible pump sets from its position and carrying out repairs after proper cleaning of impellers & shafts, including packing, refixing in position and testing of motor of capacity10 HP complete etc., all as specified and directed.(Make:- Kirloskar ) Note: Spare parts/ accessories like impeller, shaft, bush and sleeve etc., shall be measured and paid separately under relevant items of this schedule.

Supply only the following spares of 10 HP capacity submersible pump set/ monoblock submersible pump set

Impeller with bowl

Pump Shaft

Shaft Sleeve

M&L for stripping out squirrel cage, induction motor, 3 phase 415 volts AC 50 centrifugal/submersible starter and rotor cleaning up internally and externally including removing old burnt copper wire, worn out bearing and rewiring/ rewinding with new copper wire, including necessary transportation workshop and bring back to the installation and assembling, testing and commissioning of motor complete etc., all as specified and directed for the following capacity:-

For 15 HP capacity

For 12.5 HP capacity

For 7.5 HP capacity

For 5 HP capacity

Taking up defective submersible pump set/ Monoblock submersible pump sets 3 phase,AC,415 volts, 50 c/s from shallow well and disconnecting cable, GI delivery pipe etc,taking out/transport to work shop, dismantling and rewinding submersible pump motor with appropriate size of copper wire , reassembling,erecting back in position, cable jointing, testing and commissioning of motor complete all as specified and directed for the following capacity:-

For 5 HP capacity

For 7.5 HP capacity

For 10 HP capacity

Taking up unserviceable centrifugal non clog submerciable sewage pump set 40 HP from sewage sump by bail out the water, disconnectin ,declamping, transport to authorised work shop taken to civil workshop and re-installation in the sump,testing complete including replacement of Gasket,cable end cap,Seal,Painting and service charges complete all as directed.(Make:- Kishore ) .Note: Spare parts/ accessories like Winding charges, bearings,Seal,Sensor,Shaft etc., shall be measured and paid separately under relevant items of this schedule.

Supply only the following spares of centrifugal non clog submerciable sewage pump set 40HP capacity

Winding with new copper wire of appropriate size including removing old burnt copper wire

Bearing 02 Nos.( Lower and Upper)

M-seal lower and upper

Temperature Sensor

Moisture sensor

Rotor Shaft

Replacement of Insulating Oil as per manufacturer recommended grade

Supply and replacement of ball bearings including applying lubricating and testing complete for following:-

M&L for earthing for pole complete with galvanized steel earth plate electrode 600X600X6mm thick buried directly in ground (earth pit not less than 2.25m deep below normal ground level) with top edge of the plate not less than 1.5M below normal ground level connected to GI earth lead of 32x6 mm GI strip by means of nuts, bolts, check nuts and washer of GI protection pipe 40mm light grade and connecting to testing point including provision of test point and all as shown in electrical plate No. 5 of SSR Pt I (2009). The quoted rate shall be inclusive of necessary earth work and PCC chamber with cement concrete 1:3:6 type C1 complete all as specified and directed (Note:- (a) GI strip beyond 7.5M shall be measured and paid separately (b) The rate shall deemed to be inclusive of the cost of earth work, excavation on any type soil and removal of surplus soil to a distance of 50 Mtrs, RCC 1:2:4 type B1 earth pit cover including 6 Nos of 6 mm dia CTD bar on both direction, earth lead protection GI pipe medium grade with suitable size from earth plate electrode to main switch board complete.

S&F contactor for Star Delta starter 440 volts, 50 Hz, upto 16 Amps suitable for 7.5/10 HP capacity inuction motor, 3 phase, AC all as specified and as directed.

S&F contactor for Star Delta starter 440 volts, 50 Hz, upto 25 Amps suitable for 12.5/15 HP capacity induction Motor, 3 phase, ACall as specified and as directed.

S&F contactor for Star Delta starter 440 volts, 50 Hz, upto 80 Amps suitable for 25/40 HP capacity induction Motor, 3 phase, ACall as specified and as directed.

S&F DOL starter suitable for submersible pump 3 phase AC motor upto 5 HP,3Phase,415 volt all as specified and as directed.

S&F Electronic overload relay suitable for 5 to 10HP submersible pump all as specified and as directed.

S&F Electronic overload relay suitable for 12.5 to 40 HP capacity submersible pump all as specified and directed.

S&F No volt coil, 440 volt ,suitable starters up 7.5 to10 HP capacity all as specified and as directed.

S&F No volt coil suitable for DOL starter up to 5 HP capacity, 440 volts all as specified and as directed.

S&F in repair single phase preventer all as specified and as directed. Make: Minilec

S&F MCB TPN, capacity 40/63 Amps, 10 KA fixed in repair suitable for LT panel board including dismantling existing unserviceable MCCB complete all as specied and as directed.

S&F MCCB TPN 63Amp,25 KA, 415 volt,fixed in repair on existing panel board including dismantling existing unserviceable MCCB complete all as specied and directed.

S&F MCCB TPN 100Amp,25 KA, 415 volt,fixed in repair on existing panel board including dismantling existing unserviceable MCCB complete all as specied and directed.

Taking out defective flat PVC insulated, submersible cable,3 core, 4 Sqmm multistrand copper cable from submersible pump set including supply and providing new cable of same size, jointing with jointing materials, testing and commissioning etc., complete all as specified.

Taking down the defective voltmeter from position including S&F new voltmeter of size 96 x 96mm, 0-500 V, AC, 50 c/s all as specified and directed.

Taking down the defective Ammeter from position including S&F new ammeter CT operated of size 96 x 96 mm, 0-100 V, AC, 50 c/s all as specified and directed.

Taking down the defective current transformer from position including S&F new current transformer of ratio 100 / 5 Amps, VA burden - 15, 415 volts all as specified and directed.

Taking down the defective current transformer from position including S&F new current transformer of ratio 60 / 5 Amps, VA burden - 15, 415 volts all as specified and directed.

S&F Indication lamp Red/ Yellow/ Blue with base including dismantling of unserviceable old items complete all as specified and as directed.

Preparing surface of 3 phase ,415 volts,50 c/s pump sets of following capacity and painting with two coats of synthetic enamel paint all as specified and directed.

For 40 HP capacity

For 15 HP capacity

For 12.5 HP capacity

For 7.5 HP capacity

For 5 HP capacity

Preparing surface of Pump sets panel board of following pump houses and painting with two coats of synthetic enamel paint including marking on sticker letters for all panel eqipments details etc all as specified and directed.

(a) at Old booster P/H

(b) at New booster P/H

(c) at Main sewage P/H

(d) at 143 sewage P/H

(e) at Narendra place P/H

(f) at shallow wells

(g) at 9 P&S unit P/H

M&L required for attending pump set /motor complaints of any type , finding of fault/ defect and repairing the same including required repairing materials and making pump sets/motor functional complete all as specified and directed by Engineer-in-Charge..Note :- Quoted rate shall be inclusive for following provisions: (i) Contractor shall deploy one MotorMechanic and one helper for collect the complaints from MES complaint cell as and when intimated by Engineer-in-Charge (ii) Tools,minor spares such as washer,nuts, white lead etc as required for rectifying complaints (iii) Contractor shall submit the details of rectification /non retification of complaints to Engineer-in-Charge after attending complaint.

Supply and fix automatic star delta starter suitable for pump set, 3 phase AC motor capacity 7.5 to 15HP,built in overload relay,single phase preventor,AC3,4pole cotactor,415 volt in heavy duty deep drawn sheet metal box all as specified and as directed.

Material and labour for changing and washing of activated carbon media and replacement of new sand of pressure filter 7 feet dia of capacity 10000 GPH at swimming pool asper manufacturers design including testing complete all as specified and directed.

Supply and fixing in replacement of water flow meter of size 200mm dia WOLTMANN type conforming to Standard ISO 4064 Specification Class B including jointing material such as nuts, bolts and washers and 3 mm gasket -02 Nos complete including taking down existing unserviceable flow meter and deposite to store all as specified and directed Location : TWAD TOP at NARENDRA Place . MAKE : APOLLO ,Cat part No : 90261090(8481) Or equivelant.

Supply and fixing in replacement of In line strainer of 200 mm dia for protection of water flow meter rotor mechanism and reduce the effect of turbulence etc including jointing material such as nuts, bolts and washers and 3 mm gasket -02 Nos complete including taking down existing unserviceable strainer all as specified and directed . Location : TWAD TOP at NARENDRA Place . MAKE : APOLLO

Construction of valve pit with bricks full brick thick of the 0.9x0.9x0.9 mtr sizes on 100 mm thick PCC foundation in 1:3:6 over 75 mm thick hard core, including 15 mm thick CM (1:4) both internally and externally plastering and 3.0mm thick MS sheet cover and angle iron frame of size 40x40x6mm with locking arrangement including two coats of synthetic enamel paint over a coat of primer including angle iron frame necessary excavation and earth work etc complete all as specified and as directed.

Construction of valve pit with bricks full brick thick of the 1.2 x 1.2 x 1.2mtr sizes on 100 mm thick PCC foundation in 1:3:6 over 75 mm thick hard core, including 15 mm thick CM (1:4) both internally and externally plastering and 3.0mm thick MS sheet cover and angle iron frame of size 40x40x6mm with locking arrangement including two coats of synthetic enamel paint over a coat of primer including angle iron frame necessary excavation and earth work etc complete all as specified and as directed.

M&L for Fabrication,install,commissioning and testing of LT cubical motor starter panel board of size not lessthan 1.0x0.75x0.30mtr, three phase 4-wire systems,out door type, dust and vermin proof, made out of CRCA sheet 3.0 mm thickness, powder coated, double door,with locking arrangements,mounted on ISMC 75 on PCC plate form including control wiring complete , necessary PCC 1:3:6 staging for panel etc including taking down existing unserviceable panel complete all as directed to suitable to accommodate the following:- ( Locations:- Camp Shallow well) . (a) MCCB 63 Amps, 10 KA, 4 pole, 415 volts with thermal based release - 01No (incoming). (b) MCB 32 Amps,TPN pole,415 volts - 02 Nos.(for starters). (c) Multi functional digital meter for voltage, ampere, frequency etc,3phase,4 wire system with CTs - 01 Set. (d) Indicating lamps LED type R,Y,B and main ON,over load trip etc.-06 Nos. (e) Copper bus bar of capacity 200 Amps size 40 x 3 mm -04 Nos. (f) Star delta starter for submersible pumps upto 32Amps rating.-02 set. (g) Single phase preventor -02 Each. (h) Over load relay -02 Each. (j) Timer set -02 Each. (k) Push button and rear connections for ON/OFF -02 Each.

M &L for wiring for circuit /sub main wiring along with earth wire with the 10sqmm sizes of HRFR, PVC insulated unsheathed ,industrial grade copper conductor ,single core ,flexible cables,1100 volts conforming to IS-694 drawn in existing cable ducts /racke/pipes in surface /recessed as required for connections from panel to pump motors including taking down /dismantling of existing unserviceable /burnt copper conductor all as specified and as directed.

M &L for wiring for circuit /sub main wiring along with earth wire with the 6 sqmm sizes of HRFR, PVC insulated unsheathed ,industrial grade copper conductor ,single core ,flexible cables,1100 volts conforming to IS-694 drawn in existing cable ducts /racke/pipes in surface /recessed as required for connections from panel to pump motors including taking down /dismantling of existing unserviceable /burnt copper conductor all as specified and as directed.

M &L for wiring for circuit /sub main wiring along with earth wire with the 4 sqmm sizes of HRFR, PVC insulated unsheathed ,industrial grade copper conductor ,single core ,flexible cables,1100 volts conforming to IS-694 drawn in existing cable ducts /racke/pipes in surface /recessed as required for connections from panel to pump motors including taking down /dismantling of existing unserviceable /burnt copper conductor all as specified and as directed.