Airports Authority Of India Tender

Supply Installation Testing Commissioning of "Silent Type" Radiator Cooled, Diesel Generating Set along with having Prime mover power rating of 750 KVA at 0.8 lagging power factor, 415 volts, 1500 RPM, 3 phase system, as per ISO 8528 and consisting of the following: (a) Diesel Engine: 4 stroke, multicylinder cylinder in line, electronic governor, power command control module,radiator cooled, electric start, of suitable BHP at 1500 RPM suitable for above output of alternator at 50 Degree C, 50% RH & at 1000 Meter MSL and conforming to BS 5514, BS 649, IS 10000, capable of taking 10% over loading for one hour after 12 hours of continuous operation. The engine will be fitted complete with all the required accessories. (b) Alternator: Synchronous alternator rated for 750 KVA, 415 volts at 1500 RPM, 3 phase 50 Hz,AC supply with 0.8 lagging power factor at 50 Degree C, 50% RH & at 1000 Meter MSL. The alternator shall be having SPDP enclosure, brushless, continuous duty, self-excited and self-regulated through AVR, terminal arrangement for 1250A alumunium bus-duct box with other associated equipment conforming to IS:4722 / BS 2613 suitable for tropical conditions and with class H insulation. (c) Base Frame & Foundation: Both the engine and alternator shall be mounted on suitable base frame made of MS channel with necessary reinforcement which shall be installed on existing concrete foundation and vibration isolation arrangement as per recommendations of manufacturer. (d) Fuel Tank: Day service fuel tank of 990 litres capacity fabricated out of 3 mm thick M.S/HS. sheet complete with all standard accessories and fuel piping between fuel tank and diesel engine with MS class ’C’ pipes of suitable dia. Complete with valves, level indications & accessories as required as per specifications. (e) Exhaust System: Dry Exhaust manifold with Hospital grade exhaust silencer and catalytic convertor. (f) Starting System: 24V DC starting system comprising of starter motors: voltage regulator and arrangement for initial excitation complete with suitable nos. of batteries with MS battery stand etc. as required as per specifications. (g) Acoustic Enclosure : Acoustic and weather proof enclosure with arrangement for fresh air intake for cooling of the engine & alternator, extraction, discharging hot air in to the atmosphere as per specifications. (h) The work should be as per norm of Central Electrical Authority / Central Pollution control board (CPCB) standards. DG set complete as described above and as per specifications.

Supplying and fixing of exhaust gas piping of suitable dia. for 750 KVA D.G. Set welded black MS, B (medium) Class pipe conforming to IS:1239 / MS pipe having wall thickness 6.0 mm conforming to IS: 3589 cut to required lengths and installed with necessary bends, supports and clamps, anti-vibration mountings, insulation of exhaust system with 50 mm thick mineral wool / Rockwool having density not less than 120 Kg / Cum, wiremesh & cladding with 0.6 mm thick aluminum sheet etc. as required as per specifications.

STRUCTURE FOR EXHAUST PIPING: Providing & fixing for MS support structure including RCC civil foundation with all steel , cement , concrete and other required civil materials , nuts, bolts etc. of required length and size for exhaust fume pipes of DG Sets (Exhaust pipe to be measured and paid for separately) along horizontal and vertical runs and monkey ladder upto the height (as per CPCB norms) including cutting, welding etc and applying two coats of red oxide and two coats of synthetic enameled paint of colour and shade as directed by EIC. The design of the support structure shall be done by the contractor and shall be as per CPCB norms. Design and drawings shall be got vetted from the structural Engineer before execution as per specifications as required.( Weight of MS support structure and monkey ladder shall be considered for payment )