Work of source improvement of Open Well and pumping machinery at village Sadas under Sub Dn Gangrar

Earth work in excavation in foundation trenches or drains including dressing of sides and ramnming of bottoms lift up to 1.5 mtr including traking out the excavated soil and depositing and refilling of jhiri with watering and ramming and deposals of surplus excavted soil as directed with a lead in a 50 mtr including stacking of useful material if available.

Hard rock (requiring blasting) useful material 30 %

From 20.0 m to 25.0 m BGL

Add extra over item No 2.39.2-4 for every additional; lift of 1.5 m or part thereof: In Ordinary rock and Hard Rock.

In ordinary rock and hard rock

Add extra over item no 2.39 for excavation in saturated soil where pumping or bailing out of water is required including shorting strutting where required and dewatering. (Respective applicable rates)

Labour charges for horizontal boring 100 mm dia in open well in rocky strata with all types of rock cutting & drilling tools etc. including all T&P required for job including dewatering arrangement.

Providing, installation, testing and commissioning of submersible monoblock pump set conforming to IS 8034 and 2 pole motor operating at syncronised speed of speed 3000 RPM, with water proof winding. Pump shall be suitable for various delivery head and discharge with stainless steel shaft. Motor suitable for working on 415 V ± 10%, 3 Ph, 50 Hz AC and with water lubricated bearing to accept entire hydraulic thrust. Supply, with cable guard, thrust carbon/fiber bearing to withstand entire hydraulic thrust. The pump set shall be suitable for direct coupling, with suitable suction strainer. Pump should have suitable discharge out let as per manufacturer's design. Antithrust stream lined non return valve shall be provided with the pump and minimum 6 m submersible copper conductor cable in single / double run and 2 pairs of suitable size erection clamp 10 mm thick shall be provided with each pump etc. complete in all respect as per specification, scope of work and direction of Engineer in Charge of following power rating, suitable for prescribed duty conditions mentioned in TD.

Supply & Fixing XLPE insulated / P.V.C. sheathed cable of 1.1 KV grade with aluminium conductor Armoured of IS:7098-I/1554-1 approved make in ground as per IS:1255 including excavation of 30cmx75cm size trench, 25 cm thick under layer of sand, second Class bricks covering, refilling earth, compaction of earth, making necessary connection, testing etc. as required of size.

Supply & Fixing tube well cover of MS sheet 8mm thick at top & 5mm thick 100mm wide shroud around the edge so as to form a cap on the top end of casing pipe with GI Nipple 45cm long & two GI flanges at both ends in 80mm sizes passing through a hole in the centre of MS sheet. A 25 mm socket with end plug shall also be welded over top plate. A GI nipple having outside thread of size 1/2" (for installation pressure gauge) shall be provided & welded with 80mm GI nipple near top plate nipple shall be provided with end plug.

9.03LPS/60mtr Head, 11.00 KW (15.0 HP)

Supply & Fixing of electric controls feeder pannel comprising of suitable rating MCCB, fully automatic Star/Delta starter, overload relay, ampere meter with CTs, Volt meter, phase preventor, suitable starting capacitors, phase indicators, lighting arrangment etc complete suitable for three phase pump set. The pannel should have space for Energy meter (Supplied by DISCOM). All these equipments shall be housed by pannel box made out from 18 gauge MS sheet with powder coating. Pannel should be of minimum size 90X60X450mm with stand (made of angle iron of size 35X35X5mm) duly bolted/screwed with enclosure box having four legs, each leg lenght 18" and double door including inbuilt locking system. The legs should be embeded in M15 cement concrete platform. The size of CC plateform should be equal or bigger than the base size of pannel having height of atleast 200mm from ground level. The pannel should have opening of suitable size infront of space for energy meter with glass for meter reading. The operation of pannel should be suitable for on 440 Volts AC supply.

Providing and Fixing of ISI marked PVC storage tank of following capacity as per IS: 12701-1989 (of approved make) with cover, 25 mm dia. 1 mtr long GI overflow pipe, 25 cm long 25 mm dia washout GI pipe with plug & socket, including P&F 32 mm dia Ball Cock (Float valve) IS 1703 marked with rod and PVC ball complete with brass weight 1000 gm, including P&F 15mm dia CI quarter turn heavy duty Bib Cocks four no's of superior quality and approved make, including interconnections complete job.

Above 10.0 HP and up to 15 HP.

Supply & Fixing of ISI marked three core PVC flat submersible cable as per IS:694:1990 or ammended upto date and conductor as per class 5 of IS:8130:1980 including making connections etc.

3 core 6.0 Sq.mm

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