SPECIAL REPAIRS TO REPLACEMENT OF BER DG SET OF CAPACITY 63 KVA AND ALLIED WORKS AT VSV GURUGRAM UNDER GE (AF) GURGAON

Amount

Supply, installing, commissioning and testing complete of Manufacturer or OEM (Original Eqpt Manufacturer) manufactured and tested static Diesel Engine driven generating set capable of delivering 63/62.5 KVA (50 KW),or nearest higher rating 415 volts (AC 3 Phase, 4 wire system of supply), 50 Hz at power factor 0.8 minimum. The DG set shall consist of a diesel engine coupled through flexible coupling to a matching alternator, and mounted on Dunlop metallastik foundation pads on a common base frame and thereafter installed in the CPCB approved acoustic enclosure (the complete set conforming to and test certified as per CPCB norms and as specified) all as specified complete, with control panel standardised by manufacturer, fuel tank with mounting arrangement and inlet, outlet, return oil arrangement, suitable capacity of radiator for cooling, flexible exhaust pipe complete and shall comprise of the following : - (i) DIESEL ENGINE :- The Engine shall be Water cooled 63/62.5 KVA, BHP-83 and suitable for generating three phase 63/62.5 KVA, 50 KW POWER, oil lubricated,Exhaust silencer,Self starting arrangements and battery charger unit developing 1500 rpm suitable for above output of alternator at 40ºC, 50 % RH & at 300 meter MSL and conforming to BS 5514, BS 649, IS 10000, Capable of taking 10% overloading for 1 hour after 12 hour of continuous operation. The engine will be fitted complete with all the required accessories like oil type air cleaner,Exhaust silencer suitable for canopy, Expansion below,Lube oil cooler, Full flow lube oil filter, Fuel filters(Pre and micro) in-line mono block fuel injection pump, mechanical Governor and fuel feed pump, Flywheel with starter ring and bell housing suitable for close coupling, Exhaust gas driven turbocharger, 12 Volt electric starter motor,Battery charging alternator, microprocessor based controller fixed in power panel, Protection system for Low lube oil pressure, High cylinder head temperature, Fuel off solenoid, Initial fill of lube oil, Lube oil drain arrangement, Breather Pipe, AVM's etc complete all as specified.

(ii)ALTERNATOR : AC alternator, self excited, self regulated, self ventilated, brushless design, conforming to BS 2613 / 5000, 3 phase , 415 volts, 4 wire rated line current 86.6 amps , 63/62.5 KVA for output PF 0.8, 1500 RPM, insulation class ‘H’; Enclosure IP 23 / TEFC complete with AVR with + 1 % voltage regulation, directly coupled to and match the above engine (iii) FUEL TANK Inbuilt type fuel tank of capcity 12 Hrs running operation with Fuel guage air vent and drain plug arrangement with fuel filling cap with Lock & key arrangement is made on the canopy complete all as specified. (iv) BASE FRAME The base frame shall be Epoxy coated Sheet metal base frame suitable for mounting the Canopy structure directly on the channels.the cross members are designed in such way that it can house engine and Alternator. Base frame will have provision to mount fuel tank and Battery. End channel will be of removal type for removing the fuel tank etc .Base frame will have provision for Lube oil drain hose and Breather hose. (V) BATTERY The Battery as per OEM spcifications and capacity with one set of connecting leads of 16 Sqmm size Copper cable as specified by Engineer in charge. (vi) EXHAUST PIPING The exhaust piping shall be DG set in complete with Exhaust piping i.e Silencer is mounted and connected by means of MS pipe through flexible pipe to the engine manifold.Entire exhaust piping inside the canopy (cold zone) is insulated by means of ceramicwool and aluminium gladded.

SPECIFICATION OF CANOPY (i) Acoustic Enclosure: The Acoustic enclosure shall be powder coated and fabricated out of 16 SWG CRCA MS sheet. The silent canopy shall be of nut bolt type construction. Critical process of punching is done on CNC machines to maintain dimensional accuracy of holes within 0.1mm . Powder coating is done after seven tank surface preparation process of sheet metal.Canopy panel and doors shall have inside lining of Fire Retardant foam as acoustic material . Four hinged doors shall be provided to canopy one door shall have glass window for control panel along with following connected accessories/arrangements like Emergency stop button with wiring , 12 Volt Emergency light with wiring, 4 nos Slam type Lock with key, 4 Nos lifting hooks, Viewing glass for control panel in the door, Rock wool stuffing in hot air zone, 25 mm thickness FTD 32 model foam, 3 mm thickness polyurethene cross link tape provided in between top roof and hood, Rain cover plate for Exhaust pipe opening in the roof, All external fasteners used are SS and internal are MS with Green Passivation, Exhaust piping system provided with tail pipe after silencer.

(II) Performance Parameters: The average sound level, when measured in green field condition(ISO 3744or 8528 PT 10 ) at 1- meter distance from all four sides shall be less than 75-dbA averages as per CPCB norms.The average stabilized hot air temperature rise within the canopy is maintained within 10 ºC over and above ambient temperature. (III) Testing: Testing shall be done complete all as specified and as directed by Testing Officer TO BE NOMINATED BY ACCEPTING OFFICER . The fuel consumption for testing of DG is deemed to be included in the rate quoted. (IV) Cost of PCC foundation as per design of OEM is deemed to be included in overall cost quoted NOTE- (i) COST OF PCC FOUNDATION AS PER DESIGN OF OEM IS INCLUDED IN OVERALL COST QUOTED (ii) Pre- dispach inspection of DG set shall be carried out by the rep of Accepting officer within overall cost quoted (VII) AUTOMATIC MAINS FAILURE CONTROL PANEL M & L for Automatic main failure LT panel factory made indoor type with CRCA sheet of 2 mm thick with by pass arrangement and controls as per manufacture,s spectification suitable for DG set cap 63/62.5 KVA grouted in floor, PCC Foundation including following accessories

Supply, laying and testing in replacement of cable XLPE insulated screened, PVC bedded galvanized steel strip or wire armoured electric power cable (heavy duty) with aluminium conductor 1100 Volts grade cross sectional area 3.5 core x 120 Sqmm. complete all as directed. Note : Provision of suitable double crimpped lugs and glands shall deemed to be included in quoted rates.

Supply, laying and testing in replacement of cable XLPE insulated screened, PVC bedded galvanized steel strip or wire armoured electric power cable (heavy duty) with aluminium conductor 1100 Volts grade cross sectional area 3.5 core x 50 Sqmm. complete all as directed. Note : Provision of suitable double crimpped lugs and glands shall deemed to be included in quoted rates.

Excavation in trenches in soft/loose soil not exceeding 1.5 m depth and n.exc 1.5 m wide for laying of pipes/cables etc and getting out all as specified and directed by Engineer in Charge.

M & L for Returning, filling in including spreading, leveling, watering and well ramming in layers not exceeding 25 cm thick in soft/loose soil complete all as specified and directed by Engineer in Charge.

Removing excavated material to a distance not exceeding 50 m and depositing where directed at a level not exceeding 1.5 m above the starting point complete all as specified and as directed by the Engineer-in-Charge

M&L, for providing dry river sand as in sand cushioning to UG cable including punning gently all as directed.

Supply and laying, sub class old 'B' burnt bricks, size of brick 230x115x75mm, laid as cable protection cover complete all as specified and directed.

M&L for boring/auguring (upto 6mtr span) suitable hole and insertion of 50/80/100mm dia GI pipe not less than 600mm below existing PCC/Road/hard standing complete all as specified and as directed.Note: GI pipe will be paid in saperate item

M & L for GI Tubes of 80mm dia, 'light grade', galvanised, with all fitting, laid in trenches complete all as specified and directed.

M & L for GI Tubes of 50mm dia, 'light grade', galvanised, with all fitting, laid in trenches complete all as specified and directed.

Earthing complete with galvanished steel earth plate electrode 60 x 600cm x 6.3 mm 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 galvanished iron strip 32 x 6 mm 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 etc complete all as specified and directed.

Supply, installing, testing and commissioning factory made and tested LT Outdoor type, platform mounted, suitable for 415 Volts 3 Phase and neutral, 4 wire, 50Hz AC supply system having bus bar chamber with insulated electrolytic Aluminium bus bars TPN of capacity 375 Amps rating installed on DMC insulators with bus bar chamber. The panel shall be dust and vermin proof, and made out of 3.15 mm thick CRCA mild steel sheet and mild steel & Angle iron frame work made out of 50 mm x 50 mm X 6 mm ), front opening type with aprons for cable entry, with proper ferrule & cable gland, internal wiring with PVC insulated multistranded copper conductor FRLS cable of adequate size but not less than 1.5 sqmm complete. All steel metal works including frame shall be with anticorrosive coating with seven tank process and finally epoxy polyester powder coating of Siemens grey RAL- 7035 shade. The scope of work also comprising of the following:-

M & L for taking out old (BER DG set) form installation Room without damaging the installation room and shifting at MES store yard by using hydra or other equipments including transportation etc complete all as specified and directed.

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