PROVISION OF 100 KVA STANDBY DIESEL GENERATOR FOR EMERGENT POWER BACK UP AT GE DEHRADUN

Supply,installation,commisioning and testing Trolley mounted silent Diesel Engine driven generating set 415 volts, 3 phase 4 wire,50 Hz, engine as per IS:10001/ 10002 and Alternator as per IS: 13364 with accoustic enclosure complete with trolley mounted control panel, AMF Pane,AVMS (Pad-inbuilt) with necessary meter and sound proof canopy as per CPCB IV+ norms of capacity upto 100 KVA,including 04 Nos of Earthing complete with GI earth plate electrode of size 600 mm x 600 mm x 6 mm and GI strip 32 x 6 mm size for neutral and DG set body as per SSR-19473. (I) ENGINE (a) General: Suitable four stroke compressed ignition, radiator water cooled,Turbocharged aspiration charge air cooled, continuous duty with 10% overload capacity for any one hour in 12 hours running, 50°C intake air temperature, 04 In-Line cylinder CPCB-04 approved Engine developing minimum 132 BHP at 1500 RPM coupled to alternator mounted on Channel Iron base frame with in built removable fuel tank of capacity not less than 12 Hrs consumption capacity at 75% load or more as per manufactures reccommendation. The prime mover provided should be as per IS specifications having engine overload protection.Governor should be electronic type. (b) Air intake system : Should comprise of dry type intake air filter mounted on engine, one in number vacuum indicator mounted on intake piping. (c) Exhaust System: Should comprise of one exhaust manifold with exhaust pipe size 5 inch, dry type, mounted on engine, one exhaust silencer which should be positioned in such a way that the exhaust gas is not sucked by the fan on the radiator, thereby affecting the cooling system. The silencer should cater to the noise level tolerance prescribed in the relevant BS/IS. The silencer should be provided with flaps it will open only when the generator is running. The complete exhaust system shall be hospital grade with rain cap and properly supported so that entire lot of the exhaust system shall not fall on the DG Set.DEF (Diesel exhaust fluid) should be AUS 32 (Premix) as per ISO 22241 (d) Fuel System: Should comprise of disposal type element fuel filter, pressure type fuel pump mounted on engine, non return check valve in fuel supply and drain lines, wire braided hose between filter and pump, fuel system with suitable capacity full authority electronic engine electronic governor and engine mounted actuator. The fuel tank must have proper locking arrangement with level indicator and to be integrated with base frame.Fuel shall be HSD (High speed Diesel).Fuel system should be CREI (Common Rail Electronc Injection System) (e) Cooling System: Should comprise of radiator designed and tested for 50 degree C ambient temperature with liquid cooled (EG Compleat 50:50)7 PSI pressure cap mounted on base rail. The thermostat installed in the engine coolant outlet, fresh water pump mounted on engine, fan and fan hub mounted on engine. A reservoir of 50% of radiator capacity to replenish coolant by gravity (as and when required) is also to be provided.Total coolant capacity should not be less than 20.2 Litre. (f) Lubricating System: Should comprise of lubricating oil sump mounted on engine, gear driven lub oil pump mounted on engine, lubricating oil cooler-fresh water cooled integral with engine cool out circuit mounted on engine, oil filter lubricating with cap and lubricating oil dip stick for oil level check mounted on engine. The system should be capable of feeding lube oil to the main end & large end bearings, cam shaft, valve rocker gear and all moving parts.Lube oil should be CK 4. (g) Starting System: Should comprise of suitable voltage DC electrical self starter mounted on engine, with suitable maintenance free batteries -2 Nos 2 Nos. 25 Plate, 95 AH, 12 Volts Battery with one set of connecting leads of 120 sq mm Size Copper Cable to be mounted in trays (having rubber insulation) on the main frame or the capacity as per specification of manufacturer. It should have the provision to charge the battery from external sources during static condition and while running of the generator.

Returning, filling in, including spreading, levelling, watering and well ramming in layers not exc. 25 cm thick in each layer as in soil complete all as specified and directed.

Removing surplus excavated material (SOIL) to distance not exc. 50 m and depositing where directed at a level not exc. 1.50 m above the starting point complete all as specified and directed.

Demolition of brickwork or stone/boulder masonry, built in cement mortar including all quoins, arches, pillars, etc, but excluding ashlar facings, dressed stonework and precast concrete articles complete all as specified and directed.

Excavating in post holes (or similar holes) each n.exc 0.5cu m, getting ut,returning,filling in and ramming earth or broken rubble mixed with earth around, in layers not exceeding, 25cm watering and removing surplus soil to a distance n exc 50m and making good surface in any type of soil complete all as specified and as directed.

Material and labour for brick work with sub class 'B' brick straight or curved on plan exc. 6 m mean radius built in cement mortar 1:6 complete all as specified and directed.

Taking down cement plaster on brick or stone walls, etc. including raking out joints, hacking for key, scrubbing down with water, etc. complete all as specified and directed.

Supply and fixing in repair 600mm dia (when unstretched) punched tape GI concertina coil, having 50 to 53 spriral turns per 5 RM of stretched length, 2.59mm dia of GI core wire with 0.5mm thick 19mm wide electrogalvanised steel strip with width of barbs 11.5mm and pitch of barbs 25.4mm, with clips complete all as specified and directed. Note: (i) Running length of wall occupied by coil shall only be measured for payment. (ii) Weight of each coil 9.5 to 10 Kg having 50 to 53 circles shall be provided to cover 5 running meter length.