Replacement of DG sets at Domestic Power House at Calicut International Airport

Amount

SUB HEAD - 1 DG Set SITC Supply Installation Testing Commissioning of "Silent Type" Diesel Generating set along with having Prime mover power rating of 750KVA at 0.8 lagging power factor , 415 volts , 1500 RPM, 3 phase system, for 0.85 load factor and consisting of the following: (a) Diesel Engine: 4 stroke water cooled, electric start, of suitable BHP 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. (b) Engine mounted instrument Panel shall be fitted with the displays of digital type for the 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 (c) Alternator: Synchronous alternator rated for 750KVA, 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 SPDP enclosure, brushless, continuous duty, self-excited and self-regulated through AVR conforming to IS:4722/BS 2613 suitable for tropical conditions and with class-F/H insulation. (d) 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. (e) Fuel Tank: Day service fuel tank of 990 litres 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. (f) Exhaust System: Dry Exhaust manifold with hospital exhaust silencer and catalytic convertor. (g) Starting System: 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 low maintenance lead acid type) as required as per specifications. (h) 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.

Supplying and fixing exhaust gas piping of suitable dia. Welded black MS, B class pipe confirming to IS:3589 cut to required length and installed with necessary bends, supports and clamps, anti-vibration mountings, insulation of exhaust system with mineral wool/ Rockwool, 50mm thick wire-mesh & aluminium cladding etc., as required as per specifications.

Supplying, installing, testing and commissioning of following capacity Air Insulated Compact Type Bus trunking for outdoor use on 3 phase 4 wire 415 volts, 50Hz A.C. supply with metal clad enclosure made of 1.6mm thick steel sheet duly powder coated in convenient sections complete with 4 Nos aluminium bus bars, necessary joints, elbow joints & expansion joints, continuous earthing with two runs of GI strip of 32 x 6 mm including, G.I. clamping brackets, steel fasteners, connecting to earthing system including Structural steel work for providing supports for outdoor busduct, fixed with or without connecting plate, including cutting, hoisting, fixing in position the base and painting with primer and finished paint etc as required all complete as per the instruction of Engineer-in- charge. a) 1250 A

Supplying, installation, testing and commissioning of following capacity copper flexible 3 phase 4 wire 415 volts, 50Hz A.C (RYBN). Convenient sections complete with 4 nos of copper flexible with bi-metallic strip etc, as per the direction of Engineer-in-charge. a) 1600A 50 KA for SC 1 sec

Supplying, installing by suspension on ceiling/along the wall, testing and commissioning of following capacity Sandwich Type Rising Mains for use on 3 phase 4 wire 415 V, 50Hz A.C. supply with metal clad enclosure having IP-54 rating after fixing the tap off boxes and all accessories, made of 1.6mm thick steel sheet duly powder coated in convenient sections complete with 4 Nos aluminium bus bars having current density of 130 A/ sq. cm at nominal current rating, necessary joints, elbow joints & expansion joints and bends, fire barrier at each floor, provision of tapping at every meter, adopter box and copper flexible for joints, continuous earthing with 2 Nos aluminium strip of suitable size (one on each side) including, G.l. clamping brackets, suspenders, angle iron bracket, steel fasteners, connecting to earthing system etc. as required. 1250 A (lsc=50 kA for 1 second)

Supply of following size of XLPE insulated PVC inner sheathed, armoured copper conductor cables of 1.1 KV grade as per IS-7098 with up to date amendments as required: a) 3.5C X 300 Sqmm

Laying and fixing of one number PVC insulated and PVC sheathed / XLPE power cable of 1.1 KV grade of following size on cable tray as required. a) Above 185 sq. mm and upto 400 sq. mm (clamped with 40x3mm MS flat clamp)

Laying of one number PVC insulated and PVC sheathed / XLPE power cable of 1.1 KV grade of following size in the existing masonry open duct as required. Above 185 sq. mm and upto 400 sq. mm

Supplying and making end termination with brass compression gland and copper lugs for following size of PVC insulated and PVC sheathed / XLPE copper conductor cable of 1.1 KV grade as required. a) 3.5C X 300 sq. mm

Supplying and installing following size of perforated pre-painted M.S. cable trays with perforation not more than 17.5%, in convenient sections, joined with connectors, suspended from the ceiling with M.S. suspenders including bolts & nuts, painting suspenders etc as required. (a) 450 mm width X 50 mm depth X 2.0 mm thickness

Supplying and installing following size of perforated pre-painted M.S. cable trays bends with perforation not more than 17.5%,, joined with connectors, suspended from the ceiling with M.S. suspenders including bolts & nuts, painting suspenders etc as required. (a) 450 mm width X 50 mm depth X 2.0 mm thickness

Supplying and making straight through joint with heat shrinkable kit including ferrules and other jointing materials for following size of PVC insulated and PVC sheathed / XLPE aluminium conductor cable of 1.1 KV grade as required. a) 3.5 x 300Sq.mm

Earthing with copper earth plate 600 mm X 600 mm X 3 mm thick including accessories, and providing masonry enclosure with cover plate having locking arrangement and watering pipe of 2.7 metre long etc. with charcoal/ coke and salt as required.

Providing and fixing 25 mm X 5 mm copper. strip in 40 mm dia G.I. pipe from earth electrode including connection with G.I. nut, bolt, spring, washer excavation and re-filling etc. as required.

Providing and fixing 50 mm X 5 mm copper strip in 65 mm dia G.I. pipe from earth electrode including connection with brass nut, bolt, spring, washer excavation and re-filling etc. as required.

Providing and fixing earth bus of 25 mm X 5 mm copper strip on surface for connections etc. as required.

Providing and fixing earth bus of 50 mm X 5 mm copper strip on surface for connections etc. as required.

Providing & fixing danger plates made of mild steel at least 2mm thick & vitreous enamelled white on both sides & with inscriptions in signal red colour on front side as read. Medium Voltage – size 200 mm x 150 mm

Providing of set of 4 Nos. 9.5 Litre capacity GI bucket painted in post office red colour with prior coat of red oxide paint and written with white paint ‘FIRE’ and mounted on MS angle iron frame with bracket of appropriate size & capacity i/c filling sand etc.

Providing First Aid Box as approved by St. John Ambulance Brigade/Indian Red Cross conforming to IS 2217 : 1963.

Supply & fixing shock treatment chart duly mounted on a wooden frame with 5 mm thick glass as reqd. (approximate front area 1.20 sq. metre)

Providing of Synthetic Insulating Mat- Confirming to IS15652 withstand 3.3 KV dielectric strength .

Kalpaka Power Control

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