PROVISION OF DG SET (CAP 300 KVA) FOR EXTENDING STAND BY POWER SUPPLY TO SECURITY LIGHT AT TECH AREA AND DOMESTIC AREA AT AF STATION OJHAR

Amount

Supply, installation, testing and commissioning of silent diesel engine driven factory assembled, floor mounted generating set suitable for out put 40 KVA, 415 volts, 3 phase, 4 wire, 50 HZ, 1500 RPM complete with safety control and metering equipment mounted on & including comman base frame on new (PCC concrete type B1, 1:2:4 using 20 mm graded stone aggregates) cement foundatrion at height 200mm including anti vibration pads as reommended by manfacturer all as specified and comprising of the following:- (a) Prime Mover : Directly coupled diesel engine, water cooled suitably de-rated of matching BHP for driving 40 KVA capacity, alternator electric start, four stroke confirming to latest IS-10001/10002 Part-II 19801 for continuous running and capable for taking 10% over load for 1 hours complete with following acessories :- (i) Fly wheel to suit flexible coupling. (ii) Flexible coupling with guards. (iii) Air cleaner with filters. (iv) Lubricating oil filter. (v) Anti-vibration pad as recommended by manfactures. (vi) PT pump with electronic gevernor of suitable capacity. (vii) Self starter 24 volts DC (viii) Necessary arrangment for charging battery.

(ix) Lead acid storage battery, as recommended by manufacture alongwith flexible copper battery lead and connector. (x) Battery rack made out of MS angle iron 40mm x 40mm x 5 mm & 150 mm height - 01 No. (xi) Standard safety device. (xii) Daily services fuel tank for full running capacity of DG set for min 08 hours enclosed within the canop all as per CCB with level indicator inlet, fuel outlet drain plug, air vent and locking arrangements etc including fuel pipe connections with connected GI pipe medium grade from fuel tank to DG set and over flow from the DG set to fuel tank complete with gate valve. (xiii) Exhaust system shall be provided with thermal insulation by using fire retardant/ non ligniting foam conforming to BS-4735 to prevent excess heat radiation on the engine and saftey for operator. (xiv) Mechanical panel having following accessories :- (aa) Lubrication oil temperature guage - 01 No. (ab) Lubrication oil pressure guage - 01 No. (ac) Water temperature guage - 01 No. (ad) Starting switch with key - 01 No. (ae) Battery voltmeter (af) Indicator lamp etc (ag) Safety measures to be included for the following conditions (i) Low lubricant oil pressure trip (ii) High coolent temp trip. (iii) Engine over speed trip. (iv) Battery charging alternator. (v) Emergency stop pressed.

(b) Alternator : 40 KVA at 0.8 power factor, self regulated 3 phase with neutral 415 volts 50 Hz 1500 RPM as per IS 2613/IS : 4722 complete with automatic voltage regulator and foot mounted including making cable connection. The sailent feature of alternator are as under : (i) Voltage regulation under static condition+ 1.5%. (ii) Class 'F' insulation. (iii) Permanently lubricating bearing. (iv) Capable to take 10% over load for one hour for every 12 hours. (c) A.M.F Panel in built suitable for 40 KVA DG set. (d) ACOUSTIC ENCLOSURE : Floor mounted acoustic enclosure suitable for 40 KVA DG set as per CPCB norms of the make as that of DG set be provided. (e) Repair/ maintanance tools to be supplied with DG set shall be as per PS clause 5.28 (f) Control wiring, cable and connected items such as relays and sensor etc deemed to be included in the scope of work for providing connection to the AMF panel. Note : DG set shall be composite type with A.M.F panel, primover and alternater and allied accessories in one enclosure, PCC/RCC foundation as per OEM. Make : Kirloskor/ Cummins/ Crompton Greaves.

Supply, laying, testing and commisioning of LT XLPE insulated/PVC heavy duty armoured cable 1100 volts grace UG stranded aluminium conductor electric cable cross sectional area 16 Sqmm 4 core including necessary connection with provision of lugs and cable gland fixing arrangements all as specified and directed.

Supply, laying, testing and commisioning of LT XLPE insulated/PVC heavy duty armoured cable 1100 volts grace UG stranded aluminium conductor electric cable cross sectional area 25 Sqmm 4 core including necessary connection with provision of lugs and cable gland fixing arrangements all as specified and directed.

Excavation in trenches n. exc 1.5 mtr wide and n. exc 1.5 mtr in depth and getting out in soft/loose soil all as specified and directed.

Returning, filling in including spreading, leveling, watering & well ramming in layers n. exc 25 cm all as specified.

Removing excavated/surplus soil to a distance n. exc 50 mtr & depositing where directed at a level n. exc 1.5 mtr above the starting point all as directed.

Supply and laying Double walled corrugated (DWC) Duct (Dura-Guard) of size 38 mm internal dia as per IS-14930 Part-II for LT UG cable protection including coupler, elbows, T-Joint, Bends, etc and test report. Make : Dura-line/Gemini/Rex

Earthing complete with galavanized steel earth electrode, 600x600x6.00 mm thick, buried directly in ground (earth pit not less than 2.25 meters deep below ground level) with top edge of the plate not less than 1.5 meters below normal ground level, connected to GI strip of size 32 x 6 mm 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 inclding testing on completion including PCC pit type C-1 (1:3:6) in cement concrete & 40 mm thick precast RCC cover in (1:2:4) type B-1 reinforced with 8 mm dia MS round bar @ 75 c/c both ways with 02 Nos lifting handles of 12 mm dia MS plain bar, GI pipe 20 mm dia light grade with funnels & wire mesh for watering and 50 mm dia light grade GI pipe for earth lead protection etc including necessary earth work and excavation complete all as specified and directed. Note:- Quantity of GI earth strip & protection pipe upto 7.5mtrs long shall be deemed included in the rate quoted and beyond 7.5 m shall be measured separately.

Supply and fix continuty or main earthing lead (Roof conductor or down conductor) above ground level fixed to wall/roof duly insulated on batten or fixed on new porcelain insulators with clamping device or recessed or chase or burried in ground/floor or down in conduit/ pipe or fixed to poles or any other indicated situation for loop earthing etc as requid 32x6 mm mm dia galvanised iron strip complete all as specified and directed. Note : (i) The distance between porcelain insulator will not be more than 40 cm. (ii) The quoted rates shall be deemed to be included with cost of T&P and labour required to work on roof top at lateral faces of existing hangers upto height of 25 Mtrs.

Material and labour for Boring of holes under road, pavements, hard standing by trench less technology at a depth 0.6 Mtr from top surface including supply & fix HDPE pipe 80 mm dia suitable for 0.4 MPA working pressure complete all as specified and directed.

KOYNA ENGINEERS PVT LTD

Electromech Engineers

K R Electricals

Anand Trading Co

Vaidehi E Link

NATIONAL ENGINEERING CORPORATION

national engineering

DURGAI ELECTRICALS