SPECIAL REPAIR/REPLACEMENT OF BER DG SETS AT MES INSTALLATIONS AT KOTA MIL STN

Amount

Supply, installation, commissioning & testing silent type diesel engine driven generating set of capacity 75 kVA at 0.8 PF, 3 phase 4 wire 50 HZ, 415 Volt, AC water cooled mounted on common base frame complete with anti vibrating pad including foundation, fuel tank and other accessories Including Automatic mains failure (AMF) control panel, complete all as specified and directed as per the following parameters: -

(A) DIESEL DRIVEN ENGINE: - Engine developing required BHP to match with 62.5/63 KVA rated alternator at 1500 RPM, including connecting, testing as per BIS-649 under NTP conditions with the following accessories. Make : Cummins/CG/Stamford/Ashoka Leyland

(a) ALTERNATOR:- Alternator shall be of capacity 75 KVA net output at work site after commissioning, de-rating factor as per MSL, high and temperature condition as applicable at power factor 0.80, AC, 3 phase, 4 wire AVR System screen protection, ball/roller bearing with damp proof winding on each pole, factor as per IS-1722, complete all as specified and directed. Alternator should be brushlesstype, suitable for 50 Hz, revolving field, self excited (confirming to BS 5000/IS 4722 or latest amendment.

(b) DIESEL ENGINE:- Diesel engine shall be vertical type of adequate capacity suitable for above alternator after considering all applicable de-rating factors for site condition as brought out in (a) as per relevant IS code having provision of coupling shaft to drive the above alternator independently after considering power losses in all the accessories forming part of the set i.e. Coupling any type, FIP, water cooled directed injection, cold starting RPM 1500, industrial type with standard accessories, confirming to ISO-3046/BS 5514 or latest amendment, complete in all respect with following provisions:-

(i) Fly wheel with housing with suitable flexible coupling.

(ii) Radiator assembly complete with fan, water pump and thermostat.

(iii) Dry type Air Cleaner as per latest CPCB norms.

(iv) Fuel Injection pump

(v) Governor Mechanical/Hydraulic variable speed as per manufacturer's design.

(vi) Flexible coupling with guard, nuts and bolts.

(vii) Fuel Filter and Oil Filter with mounting.

(viii) Lubrication Oil Pump.

(ix) Self Starter.

(x) Exhaust silencer residential type with wool/hexagonal wire netting and aluminium sheet as per latest CPCB norms.

(xi) Drip Dry.

(xii) Instrument panel complete with starting switch and key lubricating oil pressure gauge, water temperature gauge and push button, tachometer and hour meter.

(xiii) Engine protection unit for low lubrication oil pressure and high coolant temperature.

(xiv) Dynamo/Alternator.

(B) ALTERNATOR:- The above engine should be coupled through flexible coupling to an indigenous alternator, mounted on strong steel fabricated common base frame suitable for mounting on a permanent foundation. The Alternator will be 3 phase 50 HZ 1500 RPM self regulating, self exciting type and will generate 62.5/63 KVA at 0.80 PF, 415 volts, 4 wire AC supply under NTP conditions when running at 1500 RPM. The Alternator would be screen protected and fitted with end shields ball/roller bearing and generally confirm to BS 2613/IS 4772 or latest if any revision is made.

(C) CONTROL PANEL:- Cubicle type control panel sheet thickness not less than 1.6mm which is powder coated and mounted inside the canopy with hinged type door consisting of 3-pole MCN, MCCB switchgear of suitable size. The control panel incorporated analoges gauge of water temp, Lubrication oil pressure, engine RPM, Battery Charging Ammeter and hour meter it also include the standard DG on load and on load on DG indicator with key start and stop . The control panel comes with fault indicators (LED type on ESU) for:- Low lubrication oil pressure, Battery Charging failure, High Engine temprature, Low Fuel Level.

(D) FUEL TANK:- One No of Sheet metal steel tank of suitable capacity to hold diesel sufficient for 12 hours running at full load but in no case it shall be less than 140 Ltrs, mounted on angle iron frame including the following:-

(i) Fuel level indicator to indicate level of diesel in the tank.

(ii) Drain plug with 2 meter pipe of drain oil.

(iii) Fuel strainer.

(iv) Hose pipe for Fuel.

(v) Air vent

(vi) Manually Operated one No. fuel pump (For filling diesel in fuel tank).

(vii) Battery 12 Volts - 01 No. of suitable capacity as per manufactures recommendation with copper lead, terminals, fixed on wooden platform/base.

(E) One No. Base plate shall be MS fabricated and of rigidly welded constructions duly ribbed suitable for receiving engine, alternator, along with flexible coupling. It shall include set of bolts, washers, rubber coupling drip tray and protective screen around coupling.

(F) ACCOUSTIC ENCLOSURE FOR GEN SET:- OEM supplied accoustic enclosures suitable for 75 KVA capacity diesel Generator sets duly fabricated of channel and CRCA sheet 1.60 mm thick of required size having doors, sides and top insulation by mineral rock wool confirming to IS-8183 of adequate thickness, acoustic louvers/outlet, ventilation system etc complete as per latest CPCB norms with wiring and lighting arrangements, UV resistant powder coating, applied all over the body, complete all as required at site and comprising of the following: -

(i) BASE: - suitable size as provided by the manufacturer /CPCB norms.

(ii) STRUCTURE:- suitable structure as provided by the OEM.

(iii) DOORS:- suitable doors as provided by the OEM.

(iv) OUTSIDE COVER:- suitable outside cover as provided by the OEM.

(v) ACCOUSTIC INSULATION:- As per latest CPCB norms.

(vi) INSIDE COVER: - suitable inside cover as provided by the OEM.

(vii) INSPECTION PORT:- Acrylic sheet of suitable thickness with rubber gasket.

(viii) ACCOUSTIC LOUVERS/ATTENUATORS AT AIR INLET/OUTLET: - This should provide excellent sound attenuation and good weather protection. Single blade and chevron blade louvers manufactured from 16 SWG CRCA sheet top section with and including fire proof accoustic infill as per latest CPCB norms. The under section is formed from 18 SWG CRCA performed sheet after covering with fire resistant tissues to prevent fire migration or by means of accoustic lines ducts.

(ix) CONSTRUCTIONS:- Welded or bolted.

(x) VENTILATION:- As per latest CPCB norms.

(xi) WIRING & LIGHTING: - PVC copper wire concealed in flexible conduit provided with Fluorescent tube light and MCB including the following: -

(b) AMF Control Panel of suitable capacity

(c) Cables leads for batteries.

(d) Power cable to equipment.

(xii) PAINTING: - UV resistant powder coating as per manufacturer's specifications.

(xiii) ACCOUSTIC LINED DUCT FOR VENTILATION:- Acoustic line duct for Ventilation to be provided made out of GI Sheet.

(xiv) SAFETY FEATURES:-

(a) Lockable doors with angle key.

(b) Handles with in built locks.

(c) Emergency stop push button.

(d) Thermostat provided to cut off engine incase of high temp with in Enclosures.

Notes: - (a) The complete generating set including engine/alternator shall be factory assembled by manufacture or other authorized dealer as approved for assembling the DG Set. (b) PCC foundation of DG Set shall be constructed as per manufacture instruction and cost of the same shall be deemed included in the rate quoted by the contractor. (c) Complete DG sets shall be tested in the following manner after completion of work as detailed in Sch 'A'. (i) No load test - 30 Minutes (ii) Test on 25 % load- 01 Hrs (iii) Test on 50 % load- 01 Hrs (iv) Test on 75 % load- 01 Hrs (v) Test on 100 % load- 08 Hrs (vi) Test on 10 % overload- 30 Minutes (Total 12 Hrs) (d) Fuel and T&P for testing of DG sets will be arranged by the contractor

Supply, installation, commissioning & testing silent type diesel engine driven generating set of capacity 15 kVA at 0.8 PF, 3 phase 4 wire 50 HZ, 415 Volt, AC water cooled mounted on common base frame complete with anti vibrating pad including foundation, fuel tank and other accessories Including Automatic mains failure (AMF) control panel, complete all as specified and directed as per the following parameters: -

(A) DIESEL DRIVEN ENGINE: - Engine developing required BHP (not less than 56 BHP) to match with 15 KVA rated alternator at 1500 RPM, including connecting, testing as per BIS-649 under NTP conditions with the following accessories.

(a) ALTERNATOR:- Alternator shall be of capacity 15 KVA net output at work site after commissioning, de-rating factor as per MSL, high and temperature condition as applicable at power factor 0.80, AC, 3 phase, 4 wire AVR System screen protection, ball/roller bearing with damp proof winding on each pole, factor as per IS-1722, complete all as specified and directed. Alternator should be brushlesstype, suitable for 50 Hz, revolving field, self excited (confirming to BS 5000/IS 4722 or latest amendment.

(b) DIESEL ENGINE:- Diesel engine shall be vertical type of adequate capacity suitable for above alternator after considering all applicable de-rating factors for site condition as brought out in (a) as per relevant IS code having provision of coupling shaft to drive the above alternator independently after considering power losses in all the accessories forming part of the set i.e. Coupling any type, FIP, water cooled directed injection, cold starting RPM 1500, industrial type with standard accessories, complete in all respect with following provisions: -

(i) Fly wheel with housing with suitable flexible coupling.

(ii) Radiator assembly complete with fan, water pump and thermostat.

(iii) Dry type Air Cleaner as per latest CPCB norms.

(iv) Fuel Injection pump

(v) Governor Mechanical/Hydraulic variable speed as per manufacturer's design.

(vi) Flexible coupling with guard, nuts and bolts.

(vii) Fuel Filter and Oil Filter with mounting.

(viii) Lubrication Oil Pump.

(ix) Self Starter.

(x) Exhaust silencer residential type with wool/hexagonal wire netting and aluminium sheet as per latest CPCB norms.

(xi) Drip Dry.

(xii) Instrument panel complete with starting switch and key lubricating oil pressure gauge, water temperature gauge and push button, tachometer and hour meter.

(xiii) Engine protection unit for low lubrication oil pressure and high coolant temperature.

(xiv) Dynamo/Alternator.

(B) ALTERNATOR:- The above engine should be coupled through flexible coupling to an indigenous alternator, mounted on strong steel fabricated common base frame suitable for mounting on a permanent foundation. The Alternator will be 3 phase 50 HZ 1500 RPM self regulating, self exciting type and will generate 75 KVA at 0.80 PF (lag), 415 volts, 4 wire AC supply under NTP conditions when running at 1500 RPM. The Alternator would be screen protected and fitted with end shields ball/roller bearing and generally confirm to BS 2613/IS 4772 or latest if any revision is made.

(C) CONTROL PANEL:- Cubicle type control panel sheet thickness not less than 1.6mm which is powder coated and mounted inside the canopy with hinged type door consisting of 3-pole MCN, MCCB switchgear of suitable size. The control panel incorporated analoges gauge of water temp, Lubrication oil pressure, engine RPM, Battery Charging Ammeter and hour meter it also include the standard DG on load and on load on DG indicator with key start and stop . The control panel comes with fault indicators (LED type on ESU) for:- Low lubrication oil pressure, Battery Charging failure, High Engine temprature, Low Fuel Level.

(D) FUEL TANK:- One No of Sheet metal steel tank of suitable capacity to hold diesel sufficient for 12 hours running at full load but in no case it shall be less than 100 Ltrs, mounted on angle iron frame including the following:-

(i) Fuel level indicator to indicate level of diesel in the tank.

(ii) Drain plug with 2 meter pipe of drain oil.

(iii) Fuel strainer.

(iv) Hose pipe for Fuel.

(v) Air vent

(vi) Manually Operated one No. fuel pump (For filling diesel in fuel tank).

(vii) Battery 12 Volts - 01 No. of suitable capacity as per manufactures recommendation with copper lead, terminals, fixed on wooden platform/base.

(E) One No. Base plate shall be MS fabricated and of rigidly welded constructions duly ribbed suitable for receiving engine, alternator, along with flexible coupling. It shall include set of bolts, washers, rubber coupling drip tray and protective screen around coupling.

(F) ACCOUSTIC ENCLOSURE FOR GEN SET:- OEM supplied accoustic enclosures suitable for 15 KVA capacity diesel Generator sets duly fabricated of channel and CRCA sheet 1.60 mm thick of required size having doors, sides and top insulation by mineral rock wool confirming to IS-8183 of adequate thickness, acoustic louvers/outlet, ventilation system etc complete as per latest CPCB norms with wiring and lighting arrangements, UV resistant powder coating, applied all over the body, complete all as required at site and comprising of the following: -

(i) BASE: - suitable size as provided by the manufacturer /CPCB norms.

(ii) STRUCTURE:- suitable structure as provided by the OEM.

(iii) DOORS:- suitable doors as provided by the OEM.

(iv) OUTSIDE COVER:- suitable outside cover as provided by the OEM.

(v) ACCOUSTIC INSULATION:- As per latest CPCB norms.

(vi) INSIDE COVER: - suitable inside cover as provided by the OEM.

(vii) INSPECTION PORT:- Acrylic sheet of suitable thickness with rubber gasket.

(viii) ACCOUSTIC LOUVERS/ATTENUATORS AT AIR INLET/OUTLET: - This should provide excellent sound attenuation and good weather protection. Single blade and chevron blade louvers manufactured from 16 SWG CRCA sheet top section with and including fire proof accoustic infill as per latest CPCB norms. The under section is formed from 18 SWG CRCA performed sheet after covering with fire resistant tissues to prevent fire migration or by means of accoustic lines ducts.

(ix) CONSTRUCTIONS:- Welded or bolted.

(x) VENTILATION:- As per latest CPCB norms.

(xi) WIRING & LIGHTING: - PVC copper wire concealed in flexible conduit provided with Fluorescent tube light and MCB including the following: -

(b) AMF Control Panel of suitable capacity

(c) Cables leads for batteries.

(d) Power cable to equipment.

(xii) PAINTING: - UV resistant powder coating as per manufacturer's specifications.

(xiii) ACCOUSTIC LINED DUCT FOR VENTILATION:- Acoustic line duct for Ventilation to be provided made out of GI Sheet.

(xiv) SAFETY FEATURES:-

(a) Lockable doors with angle key.

(b) Handles with in built locks.

(c) Emergency stop push button.

(d) Thermostat provided to cut off engine incase of high temp with in Enclosures.

Notes: - (a) The complete generating set including engine/alternator shall be factory assembled by manufacture or other authorized dealer as approved for assembling the DG Set. (b) PCC foundation of DG Set shall be constructed as per manufacture instruction and cost of the same shall be deemed included in the rate quoted by the contractor.

M&L earthing complete as per electrical plate No 3 of MES SSR Part-I with galvanised steel earth plate electrode 600 mmx600mmx6mm, buried directly vertically in ground in a pit depth not less than 2.25 metres below ground level with top edge of earth plate at a depth not less than 1.5 metre below normal ground level connected to and including galvanised iron or steel earth strip 32mm x 6mm by means of bolts, nuts check nuts and washers of galvanised iron or steel. Earthing strip shall be protected by galvanised iron or steel pipe 40 mm bore light grade and connected to continuous earth wire on pole / test point. Watering pipe shall be 20 mm bore GI medium grade. The earthing shall be of inclusive of excavation & earth work in any type of soil, charcoal, salt, funnel PCC pit and RCC cover complete all as specified & tested complete. NOTE:- (i) The concrete pit shall be made in PCC 1:2:4 type B-O, using 12.00 mm graded crushed stone aggregate 40mm thick precast cover slab of RCC (1:2:4), type B-1, using 20mm graded crushed stone aggregate with suitable MS handle in lieu of CI cover. Reinforcement in cover shall be of 8mm dia TMT bars laid @150mm c/c both ways. (ii) Quoted shall include the cost of 7.5 metre GI pipe for protection of earth wire/strip. (iii) Quoted shall include cost of 7.5 metre earth lead wire/strip. (iv) Earth electrode shall be surrounded by adequate quantity of charcoal dust and salt to a packed thickness of 15 cm on all sides

Supply & laying in replacement LT cable XLPE insulated screened PVC bedded galvanized steel strips or wire armored, electric power cables (heavy duty) with stranded aluminium conductor, 1100 volts grade ISI marked, laid in trenches/under road/floor or on wall complete all as specified and directed of following size of cable:-

(a) 120 Sqmm, 3.5 core cable

(b) 70 Sqmm, 3.5 core cable

Excavation in trenches not exceeding 1.5 metre wide and not exceeding 1.5 metre in depth for foundation etc or for shafts, wells, cess pits, manholes, pier holes, laying cables erection of poles / struts/stays etc not exceeding 10 Sqm on plan, not exceeding 1.5 metre in depth and getting out in soft/loose soil complete all as specified and directed.

Returning, filling in, including spreading, levelling, watering and well ramming in layers not exceeding 25cm in any type of soil complete all as specified and directed.

Removing of excavated material (soil) to a distance not exceeding 50 metre and depositing where directed at a level not exceeding 1.50metre above the starting point complete all as specified and directed

M&L for sand cushioning to PVC underground cable with tibba sand and punning to provide a required cover complete all as specified and directed.

Supplying and laying factory made un-reinforced PCC precast cable covers class HV, type I, flat, size 300mm x 180mm x 40mm complete all as specified and directed.

Supply & fixing or laying in repair galvanised steel tubing light grade (ISI marked) 50mm bore for protection of underground cable on poles / walls under road crossing etc complete all as specified & directed.

Schedule of Credit

M/s Prem Associates

Natwadia Electrical Company

K B Enterprises

SHREE BHAGWATI ENTERPRISES