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

Amount

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.

Supply and laying old size bricks, common burnt clay building bricks sub class ‘B’ designation 75 laid in trenches over sand for cable protection etc complete all as specified & 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.

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

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 1:3:6 type C-1, using 12.5mm 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 shown in electrical plate No 3 of MES SSR Part-I shall be provided. Reinforcement in RCC 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, 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 (not less than 102 BHP) to match with 75 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 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.

(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 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, 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, floor mounted on suitable size frame, made out of sheet metal steel of thickness not less than 1.60 mm with front hinged cover for easy accessibility complete with necessary control circuit, fuses, bus bar of suitable size. The panel shall have the indicating instruments and switches and provisions and making incoming and outgoing electric connection. The control panel shall have suitable control for all parameters as directed by the Engineer in Charge.

(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 not 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 acoustic 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 acoustic 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 acoustic 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 AMF Control Panel of suitable capacity, Cables leads for batteries, 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 within 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) Generating set will be placed on suitable foundation as recommended by manufactured and same shall be deemed included in the rate quoted by the contractor. (c) 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.

Supply, installation, commissioning & testing silent type diesel engine driven generating set of capacity 40 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 40 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 40 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.

(b) DIESEL ENGINE:- Diesel engine shall be vertical type of adequate capacity suitable for above alternator after considering all applicable deratiang 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 40 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, floor mounted on suitable size frame, made out of sheet metal steel of thickness not less than 1.60 mm with front hinged cover for easy accessibility complete with necessary control circuit, fuses, bus bar of suitable size. The panel shall have the indicating instruments and switches and provisions and making incoming and outgoing electric connection. The control panel shall have suitable control for all parameters as directed by the Engineer in Charge.

(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 not 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 acoustic 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 sections with and including fire proof acoustic 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 acoustic 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) Generating set will be placed on suitable foundation as recommended by manufactured and same shall be deemed included in the rate quoted by the contractor. (c) 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.

Schedule of Credit

M/s Prem Associates

Pioneer Enterprises

MONA GENERATOR SEVICES PVT. LTD.