WBPHED/18_05/EE/BOLMD/24-25

Amount

Providing, Installing, Testing and Commissioning of ‘Silent Type’ Diesel Generating set alongwith having Prime Power Rating of 62.5 KVA, 415 volts at 1500 RPM, 0.8 lagging power factor at 415 V suitable for 50 Hz, 3 phase system & for 0.85 Load Factor and consisting of the followings:Make: Kirloskar /approved make

Diesel engine 4 stroke liquid cooled, electric start,startinng system 24V DC Electrical, 6/8 or suitable Nos of In line cylinders, Compression ratio16.5:1 and performance class of generator set at 1500 RPM suitable for above output of alternator at 40 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. Engine mounted Instrument Panel fitted with and having digital display for following: (i) Start-stop switch with key (ii) Water temperature indication (iii) Lubrication oil pressure indication (iv) Lubrication oil temperature indication (v) Battery charging indication (vi) RPM indication (vii) Over speed indication (viii) Low lub. Oil trip indication (ix) Engine Hours indication. Alternator : Synchronous alternator rated at 62.5 KVA, 415 volts at 1500 RPM, 3 phase 50 Hz, AC supply with 0.8 lagging power factor at 40 Degree C, 50% RH & at 1000 Meter MSL. The alternator shall be having HCl444D equivalent frame, IP2x SPDP enclosure,voltage regulation Max. 1%, brushless, continuous duty, self-excited conforming to IS/IEC 60034 and self-regulated through AVR conforming to IS: 4722/BS 2613 suitable for tropical conditions and with class- H insulation. 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 suitable cement concrete foundation and vibration isolation arrangement as per recommendations of manufacturer. Fuel Tank: Daily service fuel tank of atleast 120 liters capacity fabricated out of 3 mm thick M.S. 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. Exhaust System: Dry exhaust mainfold with hospital exhaust silencer and catalytic convertor. Starting System: (a) 12V/24V DC starting system comprising of starter motors: voltage regulator and arrangement for initial excitation complete with suitable nos. of batteries (25 plates, 180 Amp. Hour capacity lead acid type) as required as per specifications. (b) Accoustic 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.

Supply and delivery at site the following Cables:

35 sq.mm 3.5 core 1.1KV PVC/XLPE insulated aluminium armored cable. .As Per IS-7098 (Part 1) 2011 with Up To Date Amendments. .

Laying of one cable upto 150 sqmm MTR 150.000 96.00 14400.00 through existing covered masonry trench incl. taking out RC covers, setting them in order, mending good the damages filling the trench with fine dry sand incl. supplying sand.

Earthing: Excavation of soil for installation of Earth Electrode and filling & ramming. (a) For Soft Soil

a) Earthing with 65 mm dia GI Pipe (TATA-Medium) X 3.0 Mtrs. Long and 1no. 50mm X 6mm galvanized (Hot Dip) steel strip (4mtrs. Long), 20 mm dia X 125 mm long galvanized bolt, double nuts, double washers including finishing both ends by making holes etc. and S & F 65mm dia GI Pipe (ISI-Medium) protection (3mtr. long) to be filled with bitumen partly under the ground level and partly above the ground level to an average depth of 3.65 mtr. (Two set for nuetral earthing & two set for body earthing ).

b) Extra for providing masonary enclosure on the top of the earth electrode of overall size 86.36cm. X 86.36cm. X 46 cm. deep (below ground level ) complete with cemented brick work (1:6) of 25 cm. with duly plastered with cement mortar (inside) C.I. hinged inspection cover of size 36.56 cm. X 35.56 with locking arrangement, G.I. reducer including drilling of 46 nos. 12 mm dia holes on the G.I. pipe.

c) Extra for treatment of soil by using salt and charcol or coke for pipe electrode ( for soft soil )

d) Connecting the equipments body / Neutral to earth M busbar, including S & F 50mm X 6mm Galvanized (Hot Dip) MS flat on wall / floor with GI saddle as required and connection to equipments with including drilling holes, bolts, nuts, washers etc.

Trial run for the enire system including suppling diesel and skilled manpower. [N.B: (1) Third party inspection of the work is mandatory as per guidelines of NJJM and direction of EIC without any extra cost. (2) Drawing, design and make of the materials are to be approved from the EIC before procurement.]

Add: GST @ 18% on sum of Item No: 1 to 5

Add Cess @1% on sum of Item No. 6

S. P. CONSTRUCTION

M/S UTTAM KUMAR CHATTERJEE