REPAIR/ MAINTENANCE OF EXTERNAL WATER SUPPLY PUMPING LINE, SURFACE PUMP/MOTORS, SUBMERSIBLE PUMP SET, CLEANING OF OVERHEAD TANK/UNDER GROUND SUMS AND OTHER CONNECTED ITEMS UNDER GE (NORTH) KOLKATA

Amount

Excavation in trenches, n exc 1.5 m wide or n exc 10 sq m on plan and n exc 1.5 m in depth for foundation etc and getting out in soft / loose soil for taking out pipe line complete all as specified and directed.

Returning, filling in, including spreading, levelling, watering and well ramming in layers not exc 25 cm in soft/loose soil complete all as specified and directed.

Removing excavated materials not exceeding 50m and depositing where directed at a level not exceeding 1.5m above the starting point complete all as specified and directed.

Supply and fixing galvanised iron pipe in 50 mm bore, light grade for protection of UG cable, laid in trenches etc complete all as specified and directed.

Cutting hard standing / road for laying of pipe, not exc 30 cm wide and not exc 30 cm deep, and getting out rubbish, etc complete all as specified and as directed.

Material and labour for PCC (1:3:6) type C-2 (using 40 mm graded stone aggregate) not exc 30 cm wide and not exc 30 cm deep for filling and making good of disturbed surfaces of road/hard standing etc complete all as specified and as directed.

Material and labour for sand cushioning with clean dry sand in trenches for cable protection complete all as specified and as directed. (Note:- Punned depth only shall be measured and paid).

Material and labour for brick protection using old size sub class ‘B’ bricks, laid flat dry but jointed, laid length wise, perpendicular to the axis of cable complete all as specified and directed.

Supply, laying, connecting, testing and commissioning of XLPE insulated and PVC sheathed ,armoured heavy duty UG cable with stranded alluminium conductors 70 sqmm x 4 core,1100 Volts grade, laid in trenches/wall/roof/pole/through pipe, including taking down/out old unserviceable cable complete all as specified and as directed. Note :- (i) Pipe and bricks for cable protection and sand cushioning and earth work shall be measured and paid separately.

All as per item No. 9 here-in before but cable of size 50.0 sqmm x 4 core complete all as specified and as directed.

All as per item No. 9 here-in before but cable of size 35.0 sqmm x 4 core complete all as specified and as directed.

All as per item No. 9 here-in before but cable of size 16.0 sqmm x 4 core complete all as specified and as directed.

Material and labour for painting of over head water tank MS/CI pipe lines for blue/red/yellow colour as delivery, rising , discharge and overflowing pipe lines any size / length after preparation of old painted surfaces, painting with one coat of synthetic enamel paint, first quality, of approved tint including proper arrow marking for inlet, out let and wash out pipe complete all as directed.

Material and labour for preparation of old decorated surface of steel and iron and applying one coat of synthetic enamel paint, first quality, to centrifugal pump of rain, sump & sewage of capacity up to 10hp after removing of old paint by rubbing embroyed paper/wire brushed complete preparation surfaces all as specified and directed.

Material and labour for preparation of old decorated surface of steel and iron and applying one coat of synthetic enamel pain, first quality to centrifugal pump of rain, sump & sewage of capacity 28hp to 105 hp after removing of old paint by rubbing embroyed paper/wire brushed including preparation surfaces complete all as specified and directed.

Materials & labour for painting to Panel board any size (inside & outside) with angle iron support from the ground level with two coats blue synthetic enamel paint (including preparation of old surface) complete all as specified and as directed.

Supply and fix in replacement, making joint test and connect PVC insulated and PVC sheathed flat submersible cable of multistranded copper conductors of size 4 sq mm, 3 core, 1100 volt grade complete all as specified and directed.

Supply and fixing 100mm bore ERW mild steel pipe, heavy duty, 5 mm wall thickness, with drilled, welded, flanged ends having two cable slots on each flange including taking out old column pipe complete all as specified and directed.

Supply and fixing steel wire rope 12 mm dia for lifting of submersible pump including taking down the unserviceable one complete all as specified and directed. Make:- Usha martin / L&T or equivalent make as approved by the GE.

Supply and fixing Nylon rope not less than 15 mm dia for lifting/supporting of rain pump foot valve including taking down the old unserviceable one complete all as specified and directed.

Supply and fixing including connecting/ testing and commissioning fully automatic star delta Panel type starter (comprising of Ammeter, Voltmeter, RYB indicating lamp etc.) AC 3 Phase 415 Volt 50 Hz enclosed in steel sheet enclosure, suitable for 10 to 17.5 HP motor having range 32 to 63 Amps including taking down the old unserviceable one complete all as specified and directed. Make : Havells / L&T/ C&S

Supply and fixing including connection/ testing and commissioning fully automatic direct on line type motor starter AC 3 Phase 415 Volt 50 Hz enclosed in steel sheet enclosure suitable for 5 to 7.5 HP motor having range 05 to 32 Amps including taking down the old unserviceable one complete all as specified and directed. Make : Havell's / L&T/ C&S

M & L for Testing of water sample of STP (sewage treatment plant) for BOD etc. as per latest Govt. norms collected from various locations alongwith test report complete all as directed. (Note:- (i) Test certificate shall must be submitted before claiming any payment, duly defaced by the Engineer- In - Charge).

M & L for Lifting of submersible pump & motor of capacity 10 HP to 17.5hp after disconnecting it from column pipes, submersible cable, decoupling motor & pump and disconnecting from the delivery line & transportation of submersible pump & motor to workshop and back, for necessary repair & replacement of unserviceable parts, including. bolts, nuts, washers, gaskets etc, duly cleaning and painting with two coats of synthetic enamel paint over a coat of red oxide zinc chrome primer & reassembling the same including testing, lowering & commissioning of submersible pump & motor complete all as specified and directed. Notes:- (i) The spares listed herein after shall be measured and paid as supply only. (ii) The labour element involved in replacing the spares is deemed to include in the quoted rate. (iii) The contractor shall take cognizance of the above aspects and quote the unit rate. (iv) Cost of any other spares / minor spares, not specified here in after, and the spares like nut bolts washers etc shall be deemed to be included in the unit rate quoted. (v) Rewinding if any shall be measured and paid separately under relevant items. (vi) The decission of GE shall be final and binding. (vii) The makes are as per the existing.

Supply only, “Gun metal motor housing bush” for submersible motor of 10 HP to 17.5hp complete all as specified and directed.

Supply only,"Thrust bearing " suitable for 10 HP to 17.5hp capacity submersible motor with thrust bearing plate and segment complete all as specified and as directed.

Supply only, mild steel 'T' bolt 12 mm dia 200 mm long complete all as specified and as directed .

Supply only, Bowl bush made of stainless steel suitable for submersible pump complete all as specified and as directed.

Supply only, stainless steel Shaft sleeve complete all as specified and as directed .

Supply only, stainless steel key for submersible key for submersible pump complete all as specified and as directed .

Supply only, Impeller made of stainless steel for submersible pump of capacity 10 HP to 17.5 hp complete all as specified and as directed .

Supply only, stainless steel Shaft for submersible pump of capacity 10 HP to 17.5 hp complete all as specified and as directed.

Supply only, Stud with nut and washer 8 mm dia 35 mm long made of stainless steel for submersible pump of capacity 10 HP to 17.5 hp complete all as specified and as directed .

Supply only, Neck ring (GM) made of stainless steel for submersible pump of capacity 10 HP to 17.5 HP complete all as specified and as directed .

Material and labour for rewinding of submersible motor of vertical type of 10 hp to 17.5 HP, AC 3 phase, 415 volts with same gauge super enamelled copper cable conforming to existing size including paper separator, cleaning of slots, replacement of insulating materials etc. and varnishing with approved varnish and testing complete all as specified and directed.

Dismantling 28HP diesel engine, replacement of unserviceable spares/parts, over-hauling, reassembling and testing complete all as directed. Notes:- (i) The spares listed herein after shall be measured and paid as supply only. (ii) The labour element involved in replacing the spares is deemed to include in the quoted rate. (iii) The contractor shall take cognizance of the above aspects and quote the unit rate. (iv) Cost of any other spares / minor spares, not specified here in after, and the spares like nut bolts washers etc shall be deemed to be included in the unit rate quoted. (v) Rewinding if any shall be measured and paid separately under relevant items. (vi) The decission of GE shall be final and binding. (vii) The makes of spares shall be as per the existing.

Supply only Head gasket (Set) complete all as specified and directed.

Supply only Packing kit complete all as specified and directed.

Supply only Oil seal complete all as specified and directed.

Supply only Injecter pipe complete all as specified and directed.

Supply only engine oil as per existing complete all as specified and directed.

Supply only Injecter Nozzle complete all as specified and directed.

Supply only Push rod rubber complete all as specified and directed.

Supply only Fuel filter (Pre filter & Microfilter) complete all as specified and directed.

Supply only Diesel filter with 'O' ring complete all as specified and directed.

Supply only Valve and guid complete all as specified and directed.

Supply only Water hose pipe with clamp complete all as specified and directed.

Supply only Air cleaner/filter complete all as specified and directed.

Dismantling 105 HP diesel engine, replacement of unserviceable spares/parts,over-hauling, reassembling and testing complete all as directed. Note :- (i) The spares listed herein after shall be measured and paid as supply only. (ii) The labour element involved in replacing the spares is deemed to include in the quoted rate. (iii) The contractor shall take cognizance of the above aspects and quote the unit rate. (iv) Cost of any other spares / minor spares, not specified here in after, and the spares like nut bolts washers etc shall be deemed to be included in the unit rate quoted. (v) Rewinding if any shall be measured and paid separately under relevant items. (vi) The decission of GE shall be final and binding. (vii) The makes of spares shall be as per the existing.

Supply only Head gasket complete all as specified and directed.

Supply only Packing kit complete all as specified and directed.

Supply only Fuel filter complete all as specified and directed.

Supply only Diesel filter with 'O' ring complete all as specified and directed.

Supply only Hose pipe complete all as specified and directed.

Supply only Hose pipe clamp complete all as specified and directed.

Supply only engine oil as per existing complete all as specified and directed.

Supply only Nozzle Tips complete all as specified and directed.

Supply only Exhaust still bellow complete all as specified and directed.

Supply only Water pump repair kit complete all as specified and directed.

Supply only Dynamo cut out kit complete all as specified and directed.

Supply only Battery Terminal with clamp complete all as specified and directed.

Supply only Air cleaner complete all as specified and directed.

Disconnection and taking out of non-clogging centrifugal type Rain pump from 75 HP pumping set and dismantling to the extent for repair / replacement of defective spare parts including supply and fix minor parts such as nuts, bolts, washer, glands packing etc and providing one coat of synthetic enamel paint including preparation of old treated surfaces, re-assembling, re-installation and testing complete all as directed. Note :- (i) The spares listed herein after shall be measured and paid as supply only. (ii) The labour element involved in replacing the spares is deemed to include in the quoted rate. (iii) The contractor shall take cognizance of the above aspects and quote the unit rate. (iv) Cost of any other spares / minor spares, not specified here in after, and the spares like nut bolts washers etc shall be deemed to be included in the unit rate quoted. (v) Rewinding if any shall be measured and paid separately under relevant items. (vi) The decission of GE shall be final and binding. (vii) The makes of spares shall be as per the existing.

Supply only Impeller ( As per sample) complete all as specified and directed.

Supply only Shaft complete all as specified and directed.

Supply only Bearing complete all as specified and directed.

Supply only Bushing complete all as specified and directed.

Dismantling 5HP to 10 hp diesel engine, replacement of unserviceable spares/parts,over-hauling,reassembling and testing complete all as directed Note :- (i) The spares listed herein after shall be measured and paid as supply only. (ii) The labour element involved in replacing the spares is deemed to include in the quoted rate. (iii) The contractor shall take cognizance of the above aspects and quote the unit rate. (iv) Cost of any other spares / minor spares, not specified here in after, and the spares like nut bolts washers etc shall be deemed to be included in the unit rate quoted. (v) Rewinding if any shall be measured and paid separately under relevant items. (vi) The decission of GE shall be final and binding. (vii) The makes of spares shall be as per the existing.

Supply only Head gasket (Set) complete all as specified and directed.

Supply only Packing kit complete all as specified and directed.

Supply only engine oil as per existing complete all as specified and directed.

Supply only Oil seal complete all as specified and directed.

Supply only Injecter pipe complete all as specified and directed.

Supply only Injecter Nozzle complete all as specified and directed.

Supply only Push rod rubber kit complete all as specified and directed.

Supply only Fuel filter complete all as specified and directed.

Supply only Valve,valve guid & spring complete all as specified and directed.

Supply only Air cleaner complete all as specified and directed.

Supply only Fuel pipe complete all as specified and directed.

M & L for Lifting of noncloging submersible pump and motor of capacity 5 HP to 10 HP after disconnecting it from submersible cable, decoupling motor & pump and disconnecting from the delivery line & transportation submersible pump & motor to workshop and back for necessary repair & replacement of unserviceable parts, including bolts, nuts, washers, gaskets etc, duly cleaning and painting with two coats of synthetic enamel paint over a coat of red oxide zinc chrome primer & reassembling the same including testing, lowering & commissioning submersible pump & motor complete all as specified and directed. Note :- (i) The spares listed herein after shall be measured and paid as supply only. (ii) The labour element involved in replacing the spares is deemed to include in the quoted rate. (iii) The contractor shall take cognizance of the above aspects and quote the unit rate. (iv) Cost of any other spares / minor spares, not specified here in after, and the spares like nut bolts washers etc shall be deemed to be included in the unit rate quoted. (v) Rewinding if any shall be measured and paid separately under relevant items. (vi) The decission of GE shall be final and binding. (vii) The makes of spares shall be as per the existing.

Supply only Impeller complete all as specified and directed.

Supply only Shaft complete all as specified and directed.

Supply only Ball Bearing as per sample complete all as specified and directed.

Supply only bowl housing for submersible pump of capacity 5 HP/7.5 HP complete all as specified and directed.

Material and labour for cleaning of internal surfaces of OHT 55000 ltrs capacity with water using high speed water jet and evacuate water from the tank with suction pumps, clean all the surfaces of inside of tank so as to dislodge the layers of the dirt, taking out the dislodged dirt with a sludge pump including sterilise the tank with BIO DEGRADABLE and ECO FRIENDLY ANTI BACTERIAL age, SAFE for drinking water, expose the surface of tank to special ULTRA VIOLET RAYS for some time which terminate the FLOATING WAVE LENGTHS if any including writing date of cleaning at bottom of OHT using synthetic enamelled paint of white colour over black background with letters of size 100mm heigh x 100mm width complete all as specified and directed.

All as per item No.85 here in above but for 45300 ltrs capacity complete all as specified and directed.

Material and labour for cleaning of internal surfaces of OHT 60000 Gallon capacity with water using high speed water jet and evacuate water from the tank with suction pumps, clean all the surfaces of inside of tank so as to dislodge the layers of the dirt, take out the dislodged dirt with a sludge pump including sterilise the tank with BIO DEGRADABLE and ECO FRIENDLY ANTI BACTERIAL age, SAFE for drinking water, expose the surface of tank to special ULTRA VIOLET RAYS for some time which terminate the FLOATING WAVE LENGTHS if any including writing date of cleaning at bottom of OHT using synthetic enamelled paint of white colour over black background with letters of size 100mm heigh x 100mm width complete all as specified and directed.

Material and labour for cleaning of internal surfaces of semi underground water tank 22680 ltrs capacity with water using high speed water jet and evacuate water from the tank with suction pumps, clean all the surfaces of inside of tank so as to dislodge the layers of the dirt, take out the dislodged dirt with a sludge pump including sterilise the tank with BIO DEGRADABLE and ECO FRIENDLY ANTI BACTERIAL age, SAFE for drinking water, expose the surface of tank to special ULTRA VIOLET RAYS for some time which terminate the FLOATING WAVE LENGTHS if any including writing date of cleaning using synthetic enamelled paint of white colour over black background with letters of size 100mm heigh x 100mm width complete all as specified and directed.

Material and labour for cleaning of internal surfaces of semi underground water tank 10000 Gallon capacity with water using high speed water jet and evacuate water from the tank with suction pumps, clean all the surfaces of inside of tank so as to dislodge the layers of the dirt, take out the dislodged dirt with a sludge pump including sterilise the tank with BIO DEGRADABLE and ECO FRIENDLY ANTI BACTERIAL age, SAFE for drinking water, expose the surface of tank to special ULTRA VIOLET RAYS for some time which terminate the FLOATING WAVE LENGTHS if any including writing date of cleaning using synthetic enamelled paint of white colour over black background with letters of size 100mm heigh x 100mm width complete all as specified and directed.

Material and labour for cleaning the Overhead reservoir for the capacity of 10000 gallon at 23 mtr height, using high pressure jet pump and taking out dirt from the tank and make dirt free and sterlize the tank with antibacterial agent (H2O2) biodegrable echo-friendly in nature and totally safe for drinking water and finally put an ultra violet ray inside the tank to kill the wave length if any , and floating bacteria and making the tank absolutely bacteria free for the tank loading including writing the date of cleaning at outside of OHT using synthetic enamel paint of white colour over black background with letters of size 100 mm height X 100 mm breadth complete all as specified and as directed

All as per Item No:90 above ,but for the capacity of 40000 gallon at 25 mtr height complete all as specified and directed.

M & L for Lifting of submersible pump and motor of capacity 2HP/3HP after disconnecting it from , submersible cable, decoupling motor & pump and disconnecting from the delivery line & transportation submersible pump & motor to workshop and back for necessary repair & replacement of unserviceable parts, including bolts, nuts, washers, gaskets etc, duly cleaning and painting with two coats of synthetic enamel paint over a coat of red oxide zinc chrome primer & reassembling the same including testing, lowering & commissioning submersible pump & motor complete all as specified and directed. Notes:- (i) The spares listed herein after shall be measured and paid as supply only. (ii) The labour element involved in replacing the spares is deemed to include in the quoted rate. (iii) The contractor shall take cognizance of the above aspects and quote the unit rate. (iv) Cost of any other spares / minor spares, not specified here in after, and the spares like nut bolts washers etc shall be deemed to be included in the unit rate quoted. (v) Rewinding, if any, shall be measured and paid separately under relevant items. (vi) The decission of GE shall be final and binding. (vii) The makes are as per the existing.

Supply only “Gun metal motor housing bush” for submersible motor of 2HP/3HP complete all as specified and directed.

Supply only "Thrust bearing " suitable for 2HP/3HP capacity submersible motor complete with thrust bearing plate and segment complete all as specified and directed.

Supply only bowl bush made of stainless steel suitable for submersible pump complete all as specified and directed.

Supply only Impeller made of stainless steel for submersible pump of capacity 2HP/3HP complete all as specified and directed.

Supply only bush stainless steel for coupling of motor & pump” for submersible pump of capacity 2HP/3HP complete all as specified and directed.

Material and labour mild steel work in the form of bars /angles/pipe including welding to fabricate frame / base channels of pump / supporting columns of rain pump delivery pipes etc complete all as specified and directed.

Material and labour for cleaning of underground rain water tank of dimension 3Mx3Mx3M, (internal) de watering , cleaning and desludging the rain water sump by manually digging out and lifting of concentrated sludge, mud from bottom of the tank and depositing 50 metre away where directed at a level not exceeding 1.5 metre complete all as specified and directed.

Material and labour for cleaning of underground rain water tank of capacity of the tank 540 cum, of dimension 20Mx4.5Mx6M,( internal) de watering , cleaning and desludging the rain water sump by manually digging out and lifting of concentrated sludge, mud from bottom of the tank and depositing 50 metre away where directed at a level not exceeding 1.5 metre complete all as specified and directed. .

Material and labour for cleaning of underground sewage water tank of dimension radius 2 metre and depth 5.5 metre ( internal) de watering , cleaning and desludging the sewage water sump by manually digging out and lifting of concentrated sludge, mud from bottom of the tank and depositing 50 away where directed at a level not exceeding 1.5 metre complete all as specified and directed.

Material and labour for cleaning of underground sewage water tank of dimension radius 2 metre and depth 7 metre ( internal) de watering , cleaning and desludging the sewage water sump by manually digging out and lifting of concentrated sludge, mud from bottom of the tank and depositing 50 away where directed at a level not exceeding 1.5 metre complete all as specified and directed.

Material and labour for Development of borewell by air compressor and diesel driven turbine pump for at least 24 hours and till the time clean water comes of potable quality, free from sand/ mud is obtained and incuding carrying out yield test of tube well in consecutive 2 days giving rest of 2 hours after every 8 hrs of continuous run and as directed by Engr-in-charge.

Suppy and fixing damping pad / non vibration pad for 75 HP non-clogging centrifugal type Rain pump complete all as specified and directed.

Suppy and fixing damping pad / non vibration pad for 15 HP non-clogging centrifugal type Rain pump complete all as specified and directed.

Material and labour for PCC (1:2:4) type B-1 (using 20mm graded stone aggregate) for base of foundation etc including necessary form work, and finishing the surfaces even and smooth without using extra cement including demolition of damaged PCC coping complete all as specified and as directed.

Material and labour for Lifting of suction pipe of size 50/80/100 mm , for centrifugal /non clog type centrifugal pumps with foot valve and cleaning the obstacles for smooth flow of water complete all as specified and as directed.

Material and labour for Lifting of suction pipe of size 150/200 mm, for non clog type centrifugal pumps with foot valve and cleaning the obstacles for smooth flow of water complete all as specified and as directed.

Supplying and fixing 0.5 sqmm, 3 core, PVC insulated, PVC round sheathed copper conductor flexible industrial cable, FR , 1100 Volts grade including 10 SWG GI suspension wire from overhead tank to pump house including taking down old unserviceable cable of any type from water level indicator complete all as specified and directed.

Materials & labour for earthing complete with galvanized earth plate electrode 600 x 600 x 6.0 mm thick, buried directly in ground (earth pit not less than 2.25 m deep below normal ground level ) with top edge of the plate not less than 1.5 m below normal ground level, connected to Galvanised earth lead wire 4 mm dia by means of bolts, nuts, check nuts and washers of galvanized iron or steel, earth strip protected by and including 40mm dia GI pipe(light grade), alternate layers of charcoal and salt, including 20 mm bore GI tubing for watering to earth electrode, earth strip connected to test point/ distribution panel /feeder pillar etc as directed including necessary earth work, concrete pit with PCC (1:3:6) type C1, pre cast RCC(1:1:5:3) type A1 cover slab duly reinforced with 8 mm dia TMT bar 150mm c/c both way and two numbers lifting handle made of TMT bar and set in cement mortar (1:4), funnel, wire mesh, all as shown in electrical plate No 3 of SSR part-1 and testing on completion including taking out old earthing complete all as specified and directed.

Materials & labour for earthing complete with galvanized earth plate electrode 600 x 600 x 6.0 mm thick, buried directly in ground (earth pit not less than 2.25 m deep below normal ground level ) with top edge of the plate not less than 1.5 m below normal ground level, connected to GI strip of size 32x6 mm by means of bolts, nuts, check nuts and washers of galvanized iron or steel, earth strip protected by and including 40mm dia GI pipe(light grade), alternate layers of charcoal and salt, including 20 mm bore GI tubing for watering to earth electrode, earth strip connected to test point/ distribution panel /feeder pillar etc as directed including necessary earth work, concrete pit with PCC (1:3:6) type C1, pre cast RCC(1:1:5:3) type A1 cover slab duly reinforced with 8 mm dia TMT bar 150mm c/c both way and two numbers lifting handle made of TMT bar and set in cement mortar (1:4), funnel, wire mesh, all as shown in electrical plate No 3 of SSR part-1 and testing on completion including taking out old earthing complete all as specified and directed.

SHRI MILAN CHANDRA DAS

SETH GHANSHYAM DAS LAKHMAMI AND CO

The Planters Engineering Corporation

M/S MAHENDRALALL DUTTA

ELECTRO COMMERCIAL CO

SENCO

M/S KARTICK DUTTA

Friends Trading Co