PROVN OF DG SET 30 KVA FOR COMN COMPLEX AT NMS UNDER GE (P) PANAGARH

Amount

Supply, install, testing and commissioning of Silent Diesel Engine driven generating set 415 Volt (at 0.8 PF) 30 KVA 3 phase 50 Hz, 1500 RPM with accoustic enclosure and canopy type (outdoor use) made out of 14 gauge CRCA sheet with AMF Panel and including excavation ,PCC foundation(as per manufacture), anti vibration pads tamper standard control panel as per manufacture instructions and as directed by Engineer-in-charge. The DG set will comprise of following : - (a) Alternator : Standard design alternator rated at 30 KVA net out put at site, self excited ,self regulated through an AVR, screen protected, revolving field, brushless design with permanent lubricated bearings with winding in each pole, insulation class H, voltage regulation ± 1.5 % of rated voltage 'No load to full load'. The alternator shall be in a position to generate supply with frequency regulation within ± 1 % tolerance and permissible overload of 10 % for one hour in 12 hrs continuous run and conforming to IS 4722. (b) Diesel Engine adequate capacity suitable for 30 KVA Alternator water cooled to dirve indpependently the above alternator directly compled through flexble coupling multi cylinder Multi stroke direct injection cold strating 1500 RPM as per revant IS, BS 5514 with in overload capacity of 12 hrs continious running complete with standard accessories all as specified and required for site handling and operation generally the scope of accessories shall be as under :- (i) Air intake system : air intake manifold air cleaner. (ii) Coolant system : Engine water pump ,radiator with fan and fan belt. (iii) Lubricting system Oil pump of suitable capacity, lub oil pump and lub oil filter.

Item No 01 Continued…... (iv) Fuel system : Fuel injection pump 12 Volts DC solonoid switch nozzle mechanical/electronic governor, replaceable fuel filter, fuel tank made of 14 SWG sheet with drain valve, air vent inlet and outlet connection, fuel supply piping from tank to pump & to engine including return of over flow fuel with level indicating arrangement duly marked in inches/Litres. Fuel tank should be of adequate capacity for 8 hrs running at full load. (c) Starting system : 12 V DC self starter 12 V DC battery charging alternator, start & stop push button, ignitor key/ switch, Battery of reputed make of suitable capacity in changed condition with its copper leads of adequate size. (d) Base frame: common base plate with AVM pads for mounting the engine & alternator . (e) Engine instrument panel: Lub oil pressure gauage, water temp gauge. Hour meter,Battery charging indicator,low lubrication oil pressure trip indication, Over speed trip indication. High water temp trip indication. (f) Saftey control : Lub oil pressure trip, High water temp trip & over speed trip.

Item No 01 Continued…... (g) Control panel : Fabricated from 14 SWG sheet powder coated & equipped with one No 4 pole MCCB of adequate rating, digital meters for indication of currecnt , Voltage & frequency with 3 Nos CTs etc. (h) Acoustic enclosure : Modular construction withthe provision to asscmble & dismantle easity at site, powder coated & stainless steel nut & bolts/external hardware, provision for filling fuel from outside the enclosure with locking arrangement, Sound proofing of enclosure with high quality rock wool /mineral wool The rock wool is further covered with fibre glass tissue & perforated sheet . A special residential silencer within the enclosure to reduce exhaust noise. Noise level 75 db (A) at 3 m distance. The following documents shall be provided with DG set: (i) O & M manual of Diesel Engine spare parts catalogue of Disesl Engine, test certificate of Disel engine, Test cert of Diesel engine. Test certificate of Alternator, DG set complete. (ii) Strandard testing of DG sets will be carried out with 10 % overload for one hour (iii) All Civil work related to foundation as per manufactuers recommendation will be carried out at no extra cost.

Supply and lay XLPE Insulated screened PVC bedded galvanised steel strip or wire armoured electric power cables (heavy duty) 1100 volts grade with stranded aluminum conductor of size 95 sqmm 3.5 core, complete all as specified and as directed.

Supply and lay XLPE Insulated screened PVC bedded galvanised steel strip or wire armoured electric power cables (heavy duty) 1100 volts grade with stranded aluminum conductor of size 70 sqmm 3.5 core, complete all as specified and as directed.

Supply and fix four pole on load change over switch confirming to IS:13947 (Part-3) of capacity 200 Amps , complete all as specified and as directed.

S&F MCCB 4 Pole, 415 V, with thermal-magnetic release, 100 Amps with breaking capacity 25 KA complete all as specified and as directed. Make: Legrand/L&T/Schnider/Havells/C&S

M&L for earthing complete with galvanised steel earth plate electrode 60 X 60 X 6.3 mm thick buried directly in ground vertically at a depth (earth pit not less than 2.25M deep below ground level with top of the plate not less than 1.5 meter below normal ground level,earth plate surrounded from all sides by 15cm thick packed layer of charcoal,dust & common salt filling in alternate layer and electrode connection by using galvanised iron strip 32X6mm as eatrhing lead(up to the test point) by means of boltts nuts, check nuts and washers made of GI tubing 40 mm bore ,GI pipe connected upto test point and GI pipe light grade 20mm bore for watering and including funnel,wire mash,RCC pit cover and PCC chamber pit with PCC (1:3: 6) type C II using 40mm graded stone aggregate,including excavation and earth work in any type of soil,returning,filling in approved soil and disposal of surplus soil to a distance not exceeding 50m all as specified and shown in electrical plate no 5 of SSR-1991(Part-1), complete all as specified and as directed by Engineer-in-charge.

Excavation in trenches in any type of soil not exc 1.5 mtr wide and n exc 1.5 m depth for laying of cable, erection of poles, stay and pipe line, complete all as specified and as directed by Engineer in Charge.

Returning and filling in including spreading, leveling , watering and well ramming in layers not exceeding 25 cm thick excavated earth, complete all as specified and as directed.

Removal of surplus soil to a distance not exceeding 50 mtr and depositing at a leval not exceeding 1.5 mtrs above the starting point, complete all as specified and as directed.

M&L for sand coushioning with dry and clean sand over and under the cable for protection of under ground cable, 80mm sand laid before laying the cable 150mm sand after laying the cable, complete all as specified and as directed.

M&L for Best Quality bricks locally available sub class 'B' bricks (old size) for cable protection cover laid flad and dry in trenches over the cable perpendicular to the direction of cable, complete all as specified and as directed.

M/S Ali Trading Co

ANSH CONSTRUCTION

SARASWATI ENTERPRISE INDEX NO. CEEC D-81