PROVISION OF 62.5 KVA DG SET AND ALLIED ACCESSORIES FOR 33 RR BN KALAL BASE AT REASI UNDER GE NAGROTA

Amount

Excavation in trenches in any type of soil not exceeding 1.5 m wide and not exceeding 1.5min depth for laying of cable or pipes (where provided for protection of cable) etc. and getting out any type of soil, trimming the sides, forming bottom surfaces to required level complete all as specified and directed

Returning filling in including spreading levelling watering and well ramming in layers not exc. 25 cm thick each complete all as specified and directed

Removing excavated material to a distance not exceeding 50 mtr and depositing where directed at a level not exceeding 1.5 mtr above the starting point for any type of soil complete all as specified and directed

M & L for sand cushioning with a layer of sand 80 mm thick before laying of cable and 150 mm thick after laying of cable in trenches complete all as specified and directed.

Supply and laying brick covering with width equal to length of brick as the mechanical protection to cable with well burnt sub class 'B' bricks laid in trenches flat complete all as specified and directed.

Supply, laying and testing cable XLPE insulated screened PVC bedded, galvanised steel strips or wire armoured, electric power cable (heavy duty) with stranded aluminium conductor, 1100 volts grade of size 95 sqmm 3.5 core, complete all as specified and directed.

Supply and installation of silent Diesel Engine driven generating set 62.5 KVA 415 volts, 3 phase 4 wire, engine as per IS:10001/10002 and Alternator as per IS: 13364 complete with foundation (as per OEM design), control panel with necessary meter and sound proof canopy as per CPCB norms of capacity upto 62.5 KVA complete all as specified and directed.

(a) Alternator Assembly :- Alternator assembly 62.5 KVA capacity AC 400 /433/440 Volts , 3 phase ,4 wire ,0.8 PF ,50 C/s 1500 RPM ,Self excited self regulated ,screen protected ,drip proof type with end shield ball /roller bearing with damper winding in each poles/ phases as per IS 4722 and base 5000/IS 4722 all as specified. (b) Diesel Engine :- Diesel engine (prime over) shall be water cooled of adequate BHP after derating and induction of power consumed and drive above alternator independently directly through flexible coupling , vertical , multi-cylinder,diesel injection ,cold starting ,1500 RPM , with standard accessories such as start /stop push button switches ,self starting system battery charging system with required batteries 12 volts 180AH (Maintenance Free )-01 No and battery lead duly initially charged ,oil temperature gauges ,RPM meter ,hour meter ,water temp gauge ,oil pressure gauge ,mounted on common base frame and coupled through suitable coupling to the alternator complete with silencer assembly with exhaust pipe duly wrapped with asbestos rope of suitable size upto 1M outside the generator set room and MS fuel tank for 12 hours continuous running fuel capacity ,built -in the acostic enclosure with anti vibration pads.

(d) Battery Charger:- Battery charger having electrical circuit consisting of triods ,rectifiers ,capacitor and resistance etc . The battery charger should be able to charge the battery at all the time when ever electric supply given to battery through control panel or electric power point. (e) Fuel Tank :- Fuel Tank of suitable capacity as per manufacturers instruction of DG Set with supporting fabricated steel strand with all pipes armoured flexible pipe, connecting up to fuel pump including oil Lever indicator gauge, drain and air vent plug etc.

Supply and fix ON LOAD change over switch 415V in sheet metal enclosures 4 pole of capacity 315 Amps.

M&L Earthing complete with galvanised steel earth plate electrode 60cm×60cm× 6mm thick, buried directly in ground (earth pit not less than 2.25 metres deep below ground level) with top edge of the plate not less than 1.5 metres below normal ground level, connected to galvanised iron strip 32 x 6mm as earthing lead by means of bolts, nuts, check nuts and washers of galvanised iron or steel all as shown in electrical plate No. 3 connected to earthing test point all as specified or indicated including testing on completion.

Jiwan Singh

Kalsi Engineers and contractors

SHSS ASSOCIATES