SPECIAL REPAIR TO REPLACE BER EM INSTALLATION AT JALAPAHAR UNDER AGE(I) DARJEELING

Amount

Dismantling of unserviceable Pump, Motor & base frame including connected pipes/valves and removing from existing foundation by means of disengaging base frame from foundation bolts & shifting to salvage store room complete all as specified and directed.

Supply, installation, testing and commissioning horizontal ring section multistage surface mounted with side suction & top discharge pumping set 50HP capacity complete with necessary PCC foundation and comprising of following accessories all as specified and directed. (Model : RKB 50-15L-9 Stage of Make Kirloskar or equivalent in CG/KSB) (Note : Srl item No. 2.00 is here-by continued as Srl item No. 2.01 to 2.20)

(a) Pump :

(i) Type : End suction multi stage pump.

(ii) Application for : Clear water in ambient temperature.

(iii) No. of Stage : Nine

(iv) Discharge capacity : 9.10 LPS (33.48 cum/Hr)

(v) Total Head : 250 Mtrs. (24.47 bar)

(vi) Minimum operating pressure head : 220 Mtr (21.57 Bar)

(vii) Maximum suction Capacity : 8 Mtrs (Inclusive in total head)

(viii) Pump Efficiency : 69.5%

(ix) Pipe size (Suction X Delivery) : 65mm X 50mm

(x) Packing type : Gland packing

(xi) Type of coupling : Tyre coupling

(xii) Material of Pump casing : Cast Iron, Material of Impeller : Cast Iron, Material of Shaft: CS 40C8

(b) Prime Mover : Totally enclosed fan cooled squirrel cage induction motor confirming to IS: 12615 IEC60034

(i) Type : Horizontal foot mounted TEFC

(ii) Rating : 37 KW/ 50HP

(iii) RPM : 2900

(iv) Current rating : Suitable for operation on 415+/- 5%V, 3 Phase, 50Hz +/-5%, Ac supply

(c) Base Frame : MS channel fabricated base frame with necessary foundation bolts.

Note: Necessary repairing of existing PCC foundation and grouting of new foundation bolts will be included in quoted rate.

Dismantling of unserviceable DG set, alternator, base frame, exhaust pipe, fuel tank etc. and removing from existing foundation by means of disengaging base frame from foundation bolts & shifting to salvage store room complete all as specified and as directed.

Installation, testing and commissioning of diesel engine driven Gen Set with acoustic cover to control the noise level as per limit of central pollution control board (CPCB-2) of capacity 62.5KVA 3 Phase 415 volts 1500 RPM, 4 wire 50 cycles with two years maintenance spares and set of tools as recommended by manufactures comprising of the following :- (Note : Srl item No. 4.00 is here-by continued as Srl item No. 4.01 to 4.23)

(a) Prime Mover : -

Suitable for driving 62.5 KVA alternator, water cooled, battery start diesel engine of adequate BHP conforming to BSS frame pedestal support with anti vibration pad rated for continuous running capable of taking 10% over load for one hour in any 12 hrs operation with the following standard accessories :-

(i) Fly wheel to match with the flexible coupling (viii) Starter, motor for electric start complete with dynamic alternate, lead acid batteries heavy duty of capacity 12V 180AH or adequate size and length of cable not less than 2m long including battery box all as directed.

(ii) Flexible coupling with guard

(iii) Air cleaner oil bath type / dry type

(iv) Lubricating oil filter paper element type

(v) Fuel Pump

(vi) Blower type fan and radiator

(vii) Governor for class 'A' governing as per IS - 1601 of DS 349 / 1958

(viii) Starter, motor for electric start complete with dynamic alternate, lead acid batteries heavy duty of capacity 12V 180AH or adequate size and length of cable not less than 2m long including battery box all as directed.

(ix) Hour meter and RPM indicator

(x) Exhaust pipe brought outside the bud and lagging of entire exhaust pipe with 12mm dia arrestor rope.

(xi) Instrument panel duly wired comprising of the following.

(xii) Lube oil temp gauge

(xiii) Lube oil pressure

(xiv) Battery charge indicator meter

(xv) High temp gauge

(xvi) Starting switch with key

(b) ALTERNATOR : 62.5 kva at 0.8 of brush less self excited, self regulated 3 phase, 50 Hz 415 V 1500 RPM 4 wire screen protected drip proof free from stimulation problem continuous rating conforming to BS 2613 complete with automatic voltage regulator output voltage regulator between +5% or set voltage from no load to full load.

(i) Any fitting / fixtures are deemed to be included above which are required for its proper functioning

(ii) Necessary foundation (150mm raised PCC) for installation of DG Set shall be provided and cost deemed inclusive of the rates quoted above.

Make : Kirloskar Green/Cummins/Ashok Leyland/Greaves Cotton

Supply and laying and testing cable XLPE insulated, screened, PVC bedded galvanised steel strip or wire armoured electric power cable (heavy duty) 1100 volt grade with standard aluminium conductor of size 70 sqmm 3.5 core complete all as specified and as directed.

M&L for earthing using GI earthing strip 32 x 6 mm complete with galvanised steel earth plate electrode 600mmx600mmx6mm thick buried directly in ground, earth pit not less than 2.25 meters deep below ground level connection to and including GI strip of size 32x6mm to the extend 7.5 mtr as earth lead by means of GI bolts, Nuts etc. with provision of charcoal and salt all as per electrical plate No 3 of SSR Part I including water arrangement with GI Pipe 20 MM dia (medium Grade), earth lead protection pipe 50mm medium grade with bends, elbow etc. from earth plate to test point, excavation and earth work returning, filling, ramming and removing of soil to distance not exc 50mtr, make good to match with existing surface making PCC pit (Earth chamber) having internal size 30cm x 30cm x 30cm and outer size 60cm x 60cm x 60cm with RCC reinforced cover 50mm thick and testing on completion including making test point on wall as per SSR specification all as specified and directed.

All as per Srl item no. 6.00 above but using copper plate size 60X60X3.15mm thick electrode and 20X3mm copper strip as earth lead complete all as specified and as directed.

Supply and fixing GI pipe medium grade of size 80mm bore laid in floor, wall etc with all fittings complete all as specified and as directed.

Supply & fixing CI sluice valve class PN 1.6 of size 80mm bore complete all as specified and directed.

Supply & fixing CI non return valve of size 80mm bore complete all as specified and directed.

Damdoo Bhutia

R N SAH N CO

HIRA SINGH

GEETA CONSTRUCTION

M/S TSHERING BHUTIA