8824SPECIAL REPAIR AND REPLACEMENT OF BER DG SETS FOR AFTC AND AFS UNDER GE M AF JALAHALLI BANGALORE

Amount

Taking down any type and size of LT cable from wall/pole/below GL including necessary excavation after taking proper shut down from concerned sub station under intimation to concerned JE E/M complete all as specified and directed by Engr-in-charge.

Taking down any type and size of Earthing complete all as specified and directed by Engr-in-charge,

Dismantling of existing DG set of any capacity and type including disconnecting carefully all electrical connection duly taking down proper shut down from concerned sub station under intimation to JE E/M and earth strips, keeping them at safe custody for depositing in MES store complete all as specified and directed. Note - (a) Rate are includes for required Lifting and shifting (tolls /crane) of DG sets to MES store yard.

Supply, installation, testing and commissioning of silent Diesel Engine driven generating set to given an output of 20 KVA (16 KW) at 415 Volts. 3 phase, 50 HZ, 4 wire directly coupled to diesel engine, liquid cooled, mounted on common base plate complete with fuel tank of adequate capacity, vibration damper, other accessories with acoustic enclosure and alternator with AMF Panel (Gen set comply with CPCB - II Norms) including necessary PCC foundation as per OEM specification etc. complete all as specified by the manufacturer and as directed by Engineer-in-charge including comprising of followings :-

(A) DIESEL DRIVEN ENGINE .Engine suitable for alternator to give a net directed output of 20 KVA (16 KW) , 1500 RPM, conforming to ISO 8528-1 and IS:10001/10002 under NTP conditions with provision of 10 % overload capacity for one hour in every 12 hours or conforming to BS, ISO or IS including comprising of following :-

(i) Fly wheel to suit flexible coupling and fly wheel housing.

(ii) Oil bath air cleaner, air breather type.

(iv) Fuel injection rotary pumps and nozzles.

(v) Governor electronic type as per manufacturer's instructions/design.

(vi) Oil filter with mounting arrangements.

(vii) Lubricating oil pump and cooler.

(viii) Self starter 12 volts.

(ix) Lubricating oil cooler

(x) Exhaust silencer residential type exhaust.

(xi) Drip tray

(xii) Instrument panel complete with microprocessor controller:-

(a) Push start button .

(b) Lubricating oil pressure gauge

(c) Water temperature gauge digital type

(d) Stop button

(e) RPM meter digital type

(f) KWH meter.

(xiii) Engine protection unit for low lubricating oil pressure, high coolant temperature.

(xiv) Dynamo/Alternator

(xv) Batteries (maintenance free) 12 volts of suitable capacity as per manufacturer's design with lead post and interconnecting the batteries with suitable copper cable through connector etc-01 Nos.

(B) ALTERNATOR. The engine shall be coupled through flexible coupling to an Synchronous alternator mounted on a strong steel fabricated common base frame suitable for mounting on a permanent foundation. The alternator shall be 3 phase, 50 Hz, 1500 RPM, self excited, self regulating and Brushless type provided with suitable automatic voltage regulator and shall be confirm IS Standards, generating 20 KVA output after derating with coupled to diesel engine at 0.8 power factor lag, 415 volts, 4 wire, AC supply under NTP conditions. The alternator will confirm the following feature.

(i) IP 23 protection with H class insulation.

(ii) Permissible overload of 10% for one hour in 12 Hour operations

(iii) Automatic voltage regulator (AVR) - electronic Type.

(C) AUTO MAIN FAILURE (AMF) CONTROL PANEL : Separate cubical panel , outdoor type made out of CRCA sheet of 3 mm thick totally enclosed, dust and vermin proof with front and rear opening, 415 volts, 3 phase, 4 wire, AC 50 Hz having aluminium bus bar of capacity as required to carry current at 110% load of 20 KVA DG Set with three phase and half neutral colour coded, pre wired with copper control wire suitable size all as per standard practice of manufacturer specifications with the following accessories :-

(i) MCCB 63 Amps, 25 KA adjustable thermal and magnetic type and 4 pole power contactor 63 Amps for alternator

(ii) MCCB 63 Amps, 25 KA adjustable thermal and magnetic type and 4 pole power contactor 63 Amps for mains

(iii) Multifunctional digital meter for measuring V,A,Freq,P.F, KW,KVA for 3 phase phase 4 wire system

(iv) Digital type meter for DC Voltage and ampere for battery

(vi) Electronic KWH meter (Digital display) for 3 phase 4 wire AC system

(vii) Set of suitable current transformers for panel meters and relay

(viii) EB power failure timer relay.

(ix) Automatic engine start/stop logic and engine fails to start lockout mains/sensor voltage and frequency sensing.

(x) Auto / manual switch

(xi) Hooter

(xii) Earth fault relay

(xiii) SMPS based battery charging unit with inbuilt float/boost/trickle facility.

(D) BASE FRAME: Engine and Alternator directly coupled on a common channel iron fabricated base frame with predrilled holes.

(E) FUEL TANK : Daily service fuel tank of capacity as per manufacturer recommended, fabricated from CRCA sheet metal and integrated in base frame of acoustic enclosure complete with drain valve, level indicator, lid with hinges including locking system, inlet and outlet connection.

(F) ACOUSTIC ENCLOSURE: Enclosure be designed for reducing the sound level 75 db (Average) as per ISO , CPCB - II norms. The acoustic enclosure must consists of following :-

(i) CRCA sheet as per manufacturer standard

(ii) Base frame be fabricated of ISMC channel or in sheet metal, base frame will be prime coated and painted.

(iii) Enclosure be powder coated.

(iv) Insulated rock wool fire retarded/non igniting and noise reduction type, properly clamped and shall be provided on all doors, roof and sides to absorb noise.

(v) Special designed stainless steel door locks and door hinges.

NOTES :

(i) The panel will be complete with internal wiring with suitable size of copper cable.

(ii) The panel shall be CPRI Approved manufacturer

(iii) cost of DG set foundation ,painting, earth work shall deemed to be included in quoted rate of item.

(iv) Tools shall be supplied as per manufacturer instruction and cost thereof shall be included in the cost of DG set.

(v) The DG set and acoustic enclosure shall be complete one unit and it shall be installed as one complete set.

(viii) Exhaust pipe shall be properly insulated.

(x) There shall be windows in the acoustic enclosure suitable located to read the meters of various controls from outside.

(xi) Necessary inbuilt vibration pad shall be provided by the contractor.

Supply, installation, testing and commissioning of silent Diesel Engine driven generating set to given an output of 45 KVA (36 KW) at 415 Volts. 3 phase, 50 HZ, 4 wire directly coupled to diesel engine, liquid cooled, mounted on common base plate complete with fuel tank of adequate capacity, vibration damper, other accessories with acoustic enclosure and alternator with AMF Panel (Gen set comply with CPCB - II Norms) including PCC foundation as per OEM specification etc. complete all as specified by the manufacturer and as directed by Engineer-in-charge including comprising of followings :-

(A) DIESEL DRIVEN ENGINE .Engine suitable for alternator to give a net directed output of 45 KVA (36 KW) , 1500 RPM, conforming to ISO 8528-1 and IS:10001/10002 under NTP conditions with provision of 10 % overload capacity for one hour in every 12 hours or conforming to BS, ISO or IS including comprising of following :-

(i) Fly wheel to suit flexible coupling and fly wheel housing.

(ii) Oil bath air cleaner, air breather type.

(iv) Fuel injection rotary pumps and nozzles.

(v) Governor electronic type as per manufacturer's instructions/design.

(vi) Oil filter with mounting arrangements.

(vii) Lubricating oil pump and cooler.

(viii) Self starter 12 volts.

(ix) Lubricating oil cooler

(x) Exhaust silencer residential type exhaust.

(xi) Drip tray

(xii) Instrument panel complete with microprocessor controller:-

(a) Push start button .

(b) Lubricating oil pressure gauge

(c) Water temperature gauge digital type

(d) Stop button

(e) RPM meter digital type

(f) KWH meter.

(xiii) Engine protection unit for low lubricating oil pressure, high coolant temperature.

(xiv) Dynamo/Alternator

(xv) Batteries (maintenance free) 12 volts of suitable capacity as per manufacturer's design with lead post and interconnecting the batteries with suitable copper cable through connector etc-01 Nos.

(B) ALTERNATOR. The engine shall be coupled through flexible coupling to an Synchronous alternator mounted on a strong steel fabricated common base frame suitable for mounting on a permanent foundation. The alternator shall be 3 phase, 50 Hz, 1500 RPM, self excited, self regulating and Brushless type provided with suitable automatic voltage regulator and shall be confirm IS Standards, generating 45 KVA output after derating with coupled to diesel engine at 0.8 power factor lag, 415 volts, 4 wire, AC supply under NTP conditions. The alternator will confirm the following feature.

(i) IP 23 protection with H class insulation.

(ii) Permissible overload of 10% for one hour in 12 Hour operations

(iii) Automatic voltage regulator (AVR) - electronic Type.

(C) AUTO MAIN FAILURE (AMF) CONTROL PANEL : Separate cubical panel , outdoor type made out of CRCA sheet of 3 mm thick totally enclosed, dust and vermin proof with front and rear opening, 415 volts, 3 phase, 4 wire, AC 50 Hz having aluminium bus bar of capacity as required to carry current at 110% load of 45 KVA DG Set with three phase and half neutral colour coded, pre wired with copper control wire suitable size all as per standard practice of manufacturer specifications with the following accessories :-

(i) MCCB 100 Amps, 36 KA adjustable thermal and magnetic type and 4 pole power contactor 100 Amps for alternator

(ii) MCCB 100 Amps, 36 KA adjustable thermal and magnetic type and 4 pole power contactor 100 Amps for mains

(iii) Multifunctional digital meter for measuring V,A,Freq,P.F, KW,KVA for 3 phase phase 4 wire system

(iv) digital type meter for DC Voltage and ampere for battery

(vi) Electronic KWH meter (Digital display) for 3 phase 4 wire AC system

(vii) Set of suitable current transformers for panel meters and relay

(viii) EB power failure timer relay.

(ix) automatic engine start/stop logic and engine fails to start lockout mains/sensor voltage and frequency sensing.

(x) Auto / manual switch

(xi) Hooter

(xii) Earth fault relay

(xiii) SMPS based battery charging unit with inbuilt float/boost/trickle facility.

(D) BASE FRAME: Engine and Alternator directly coupled on a common channel iron fabricated base frame with predrilled holes.

(E) FUEL TANK : Daily service fuel tank of capacity as per manufacturer recommended, fabricated from CRCA sheet metal and integrated in base frame of acoustic enclosure complete with drain valve, level indicator, lid with hinges including locking system, inlet and outlet connection.

(F) ACOUSTIC ENCLOSURE: Enclosure be designed for reducing the sound level 75 db (Average) as per ISO , CPCB - II norms. The acoustic enclosure must consists of following :-

(i) CRCA sheet as per manufacturer standard

(ii) Base frame be fabricated of ISMC channel or in sheet metal, base frame will be prime coated and painted.

(iii) Enclosure be powder coated.

(iv) Insulated rock wool fire retarded/non igniting and noise reduction type, properly clamped and shall be provided on all doors, roof and sides to absorb noise.

(v) Special designed stainless steel door locks and door hinges.

NOTES :

(i) The panel will be complete with internal wiring with suitable size of copper cable.

(ii) The panel shall be CPRI Approved manufacturer

(iii) cost of DG set foundation ,painting, earth work shall deemed to be included in quoted rate of item.

(iv) Tools shall be supplied as per manufacturer instruction and cost thereof shall be included in the cost of DG set.

(v) The DG set and acoustic enclosure shall be complete one unit and it shall be installed as one complete set.

(viii) Exhaust pipe shall be properly insulated.

(x) There shall be windows in the acoustic enclosure suitable located to read the meters of various controls from outside.

(xi) Necessary inbuilt vibration pad shall be provided by the contractor.

Supply, installation, testing and commissioning of silent Diesel Engine driven generating set to given an output of 62.5 KVA (50 KW) at 415 Volts. 3 phase, 50 HZ, 4 wire directly coupled to diesel engine, liquid cooled, mounted on common base plate complete with fuel tank of adequate capacity, vibration damper, other accessories with acoustic enclosure and alternator with AMF Panel (Gen set comply with CPCB - II Norms) including PCC foundation as per OEM specification etc. complete all as specified by the manufacturer and as directed by Engineer-in-charge including comprising of followings :-

(A) DIESEL DRIVEN ENGINE .Engine suitable for alternator to give a net directed output of 62.5 KVA (50 KW) , 1500 RPM, conforming to ISO 8528-1 and IS:10001/10002 under NTP conditions with provision of 10 % overload capacity for one hour in every 12 hours or conforming to BS, ISO or IS including comprising of following :-

(i) Fly wheel to suit flexible coupling and fly wheel housing.

(ii) Oil bath air cleaner, air breather type.

(iv) Fuel injection rotary pumps and nozzles.

(v) Governor electronic type as per manufacturer's instructions/design.

(vi) Oil filter with mounting arrangements.

(vii) Lubricating oil pump and cooler.

(viii) Self starter 12 volts.

(ix) Lubricating oil cooler

(x) Exhaust silencer residential type exhaust.

(xi) Drip tray

(xii) Instrument panel complete with microprocessor controller:-

(a) Push start button .

(b) Lubricating oil pressure gauge

(c) Water temperature gauge digital type

(d) Stop button

(e) RPM meter digital type

(f) KWH meter.

(xiii) Engine protection unit for low lubricating oil pressure, high coolant temperature.

(xiv) Dynamo/Alternator

(xv) Batteries (maintenance free) 12 volts of suitable capacity as per manufacturer's design with lead post and interconnecting the batteries with suitable copper cable through connector etc-01 Nos.

(B) ALTERNATOR. The engine shall be coupled through flexible coupling to an Synchronous alternator mounted on a strong steel fabricated common base frame suitable for mounting on a permanent foundation. The alternator shall be 3 phase, 50 Hz, 1500 RPM, self excited, self regulating and Brushless type provided with suitable automatic voltage regulator and shall be confirm IS Standards, generating 62.5 KVA output after derating with coupled to diesel engine at 0.8 power factor lag, 415 volts, 4 wire, AC supply under NTP conditions. The alternator will confirm the following feature.

(i) IP 23 protection with H class insulation.

(ii) Permissible overload of 10% for one hour in 12 Hour operations

(iii) Automatic voltage regulator (AVR) - electronic Type.

(C) AUTO MAIN FAILURE (AMF) CONTROL PANEL : Separate cubical panel , outdoor type made out of CRCA sheet of 3 mm thick totally enclosed, dust and vermin proof with front and rear opening, 415 volts, 3 phase, 4 wire, AC 50 Hz having aluminium bus bar of capacity as required to carry current at 110% load of 62.5 KVA DG Set with three phase and half neutral colour coded, pre wired with copper control wire suitable size all as per standard practice of manufacturer specifications with the following accessories :-

(i) MCCB 100 Amps, 36 KA adjustable thermal and magnetic type and 4 pole power contactor 100 Amps for alternator

(ii) MCCB 100 Amps, 36 KA adjustable thermal and magnetic type and 4 pole power contactor 100 Amps for mains

(iii) Multifunctional digital meter for measuring V,A,Freq,P.F, KW,KVA for 3 phase phase 4 wire system

(iv) digital type meter for DC Voltage and ampere for battery

(vi) Electronic KWH meter (Digital display) for 3 phase 4 wire AC system

(vii) Set of suitable current transformers for panel meters and relay

(viii) EB power failure timer relay.

(ix) automatic engine start/stop logic and engine fails to start lockout mains/sensor voltage and frequency sensing.

(x) Auto / manual switch

(xi) Hooter

(xii) Earth fault relay

(xiii) SMPS based battery charging unit with inbuilt float/boost/trickle facility.

(D) BASE FRAME: Engine and Alternator directly coupled on a common channel iron fabricated base frame with predrilled holes.

(E) FUEL TANK : Daily service fuel tank of capacity as per manufacturer recommended, fabricated from CRCA sheet metal and integrated in base frame of acoustic enclosure complete with drain valve, level indicator, lid with hinges including locking system, inlet and outlet connection.

(F) ACOUSTIC ENCLOSURE: Enclosure be designed for reducing the sound level 75 db (Average) as per ISO , CPCB - II norms. The acoustic enclosure must consists of following :-

(i) CRCA sheet as per manufacturer standard

(ii) Base frame be fabricated of ISMC channel or in sheet metal, base frame will be prime coated and painted.

(iii) Enclosure be powder coated.

(iv) Insulated rock wool fire retarded/non igniting and noise reduction type, properly clamped and shall be provided on all doors, roof and sides to absorb noise.

(v) Special designed stainless steel door locks and door hinges.

NOTES :

(i) The panel will be complete with internal wiring with suitable size of copper cable.

(ii) The panel shall be CPRI Approved manufacturer

(iii) cost of DG set foundation ,painting, earth work shall deemed to be included in quoted rate of item.

(iv) Tools shall be supplied as per manufacturer instruction and cost thereof shall be included in the cost of DG set.

(v) The DG set and acoustic enclosure shall be complete one unit and it shall be installed as one complete set.

(viii) Exhaust pipe shall be properly insulated.

(x) There shall be windows in the acoustic enclosure suitable located to read the meters of various controls from outside.

(xi) Necessary inbuilt vibration pad shall be provided by the contractor.

Supply, installation, testing and commissioning of silent Diesel Engine driven generating set to given an output of 50 KVA (40 KW) at 415 Volts. 3 phase, 50 HZ, 4 wire directly coupled to diesel engine, liquid cooled, mounted on common base plate complete with fuel tank of adequate capacity, vibration damper, other accessories with acoustic enclosure and alternator with AMF Panel (Gen set comply with CPCB - II Norms) including PCC foundation as per OEM specification etc. complete all as specified by the manufacturer and as directed by Engineer-in-charge including comprising of followings :-

(A) DIESEL DRIVEN ENGINE .Engine suitable for alternator to give a net directed output of 50 KVA (40 KW) , 1500 RPM, conforming to ISO 8528-1 and IS:10001/10002 under NTP conditions with provision of 10 % overload capacity for one hour in every 12 hours or conforming to BS, ISO or IS including comprising of following :-

(i) Fly wheel to suit flexible coupling and fly wheel housing.

(ii) Oil bath air cleaner, air breather type.

(iv) Fuel injection rotary pumps and nozzles.

(v) Governor electronic type as per manufacturer's instructions/design.

(vi) Oil filter with mounting arrangements.

(vii) Lubricating oil pump and cooler.

(viii) Self starter 12 volts.

(ix) Lubricating oil cooler

(x) Exhaust silencer residential type exhaust.

(xi) Drip tray

(xii) Instrument panel complete with microprocessor controller:-

(a) Push start button .

(b) Lubricating oil pressure gauge

(c) Water temperature gauge digital type

(d) Stop button

(e) RPM meter digital type

(f) KWH meter.

(xiii) Engine protection unit for low lubricating oil pressure, high coolant temperature.

(xiv) Dynamo/Alternator

(xv) Batteries (maintenance free) 12 volts of suitable capacity as per manufacturer's design with lead post and interconnecting the batteries with suitable copper cable through connector etc-01 Nos.

(B) ALTERNATOR. The engine shall be coupled through flexible coupling to an Synchronous alternator mounted on a strong steel fabricated common base frame suitable for mounting on a permanent foundation. The alternator shall be 3 phase, 50 Hz, 1500 RPM, self excited, self regulating and Brushless type provided with suitable automatic voltage regulator and shall be confirm IS Standards, generating 50 KVA output after derating with coupled to diesel engine at 0.8 power factor lag, 415 volts, 4 wire, AC supply under NTP conditions. The alternator will confirm the following feature.

(i) IP 23 protection with H class insulation.

(ii) Permissible overload of 10% for one hour in 12 Hour operations

(iii) Automatic voltage regulator (AVR) - electronic Type.

(C) AUTO MAIN FAILURE (AMF) CONTROL PANEL : Separate cubical panel , outdoor type made out of CRCA sheet of 3 mm thick totally enclosed, dust and vermin proof with front and rear opening, 415 volts, 3 phase, 4 wire, AC 50 Hz having aluminium bus bar of capacity as required to carry current at 110% load of 50 KVA DG Set with three phase and half neutral colour coded, pre wired with copper control wire suitable size all as per standard practice of manufacturer specifications with the following accessories :-

(i) MCCB 100 Amps, 36 KA adjustable thermal and magnetic type and 4 pole power contactor 100 Amps for alternator

(ii) MCCB 100 Amps, 36 KA adjustable thermal and magnetic type and 4 pole power contactor 100 Amps for mains

(iii) Multifunctional digital meter for measuring V,A,Freq,P.F, KW,KVA for 3 phase phase 4 wire system

(iv) digital type meter for DC Voltage and ampere for battery

(vi) Electronic KWH meter (Digital display) for 3 phase 4 wire AC system

(vii) Set of suitable current transformers for panel meters and relay

(viii) EB power failure timer relay.

(ix) automatic engine start/stop logic and engine fails to start lockout mains/sensor voltage and frequency sensing.

(x) Auto / manual switch

(xi) Hooter

(xii) Earth fault relay

(xiii) SMPS based battery charging unit with inbuilt float/boost/trickle facility.

(D) BASE FRAME: Engine and Alternator directly coupled on a common channel iron fabricated base frame with predrilled holes.

(E) FUEL TANK : Daily service fuel tank of capacity as per manufacturer recommended, fabricated from CRCA sheet metal and integrated in base frame of acoustic enclosure complete with drain valve, level indicator, lid with hinges including locking system, inlet and outlet connection.

(F) ACOUSTIC ENCLOSURE: Enclosure be designed for reducing the sound level 75 db (Average) as per ISO , CPCB - II norms. The acoustic enclosure must consists of following :-

(i) CRCA sheet as per manufacturer standard

(ii) Base frame be fabricated of ISMC channel or in sheet metal, base frame will be prime coated and painted.

(iii) Enclosure be powder coated.

(iv) Insulated rock wool fire retarded/non igniting and noise reduction type, properly clamped and shall be provided on all doors, roof and sides to absorb noise.

(v) Special designed stainless steel door locks and door hinges.

NOTES :

(i) The panel will be complete with internal wiring with suitable size of copper cable.

(ii) The panel shall be CPRI Approved manufacturer

(iii) cost of DG set foundation ,painting, earth work shall deemed to be included in quoted rate of item.

(iv) Tools shall be supplied as per manufacturer instruction and cost thereof shall be included in the cost of DG set.

(v) The DG set and acoustic enclosure shall be complete one unit and it shall be installed as one complete set.

(viii) Exhaust pipe shall be properly insulated.

(x) There shall be windows in the acoustic enclosure suitable located to read the meters of various controls from outside.

(xi) Necessary inbuilt vibration pad shall be provided by the contractor.

Supply and laying of cable XLPE insulated screened PVC bedded galvanised steel strip or wire armoured, electric power cable (heavy duty) 1100 volts grade with stranded aluminium conductor of size 35 sqmm 3.5 core.

Supply and laying of cable XLPE insulated screened PVC bedded galvanised steel strip or wire armoured, electric power cable (heavy duty) 1100 volts grade with stranded aluminium conductor of size 70 sqmm 3.5 core.

All as per item No-09 above but of size 95 Sqmm 3.5 Core.

Excavation in trenches for laying under ground cable, errection of poles and stays in soft/loose soil not exceeding 1.5 meter wide and not exceeding 1.5 meter deep and getting out complete all as specified and directed by Engr–in–charge.

Returning and filling of trenches in two parts (i) using riddled soil obtained from excavated soil up to depth of 30 cm (8 cm below cable and remaining above cable) for cushioning of cable and (ii) refilling the trench of remaining depth with normal excavated soil all as specified and directed. Note :- Excavated soil shall shall be riddle by using sieve to separate composite particles etc as per IS 1255-1983 and refilling in trenches all as in cable cushioning.

Material and labour for Bricks (Size 0.23x 0.115x 0.075mm) covering with width equal to length of brick as mechanical protection to cable with well burnt sub class ‘B’ bricks laid dry flat complete all as specified and directed by Engr in charge.

Removing surplus excavated material to a distance not exceeding 50 meter above the starting point complete all as specified and directed by Engr in charge.

Material and labour for Boring of holes under road, pavement, hard, standing by trenchless technology using ultra sounding technique and necessary, machine including HDPE pipe of 150 mm dia suitable for 0.4 mpa working pressure.

Supply & laying 80 mm bore galvanized steel tubing "light grade" with GI fittings in trenches/ under roads/ along pole/ wall for cable protection all as specified & directed by EIC.

Material and labour for UG cable route indicator made out of 100 mm dia MS plate with 20 mm dia 50cm long MS bar as legs for writing LT and name of feeder fixing with and including necessary PCC 1:2:4 in grouting route all as directed by Engr in Charge.

Material and labour for Earthing complete with galvanised steel earth plate electrode 60 cm x60 cm x 6 mm thick buried directly in ground ,(Earth pit not less than 2.25 meter deep below ground level) with top edge of plate not less than 1.5 meter below normal ground level ,connected to and including GI earth strip 32x6 mm by means of nut, bolts, check nuts and washers of galvanised iron or steel and provision of charcoal dust and common salt packed all around the earth plate including necessary excavation and earth work in any type of soil and testing complete all as specified and directed and shown in electrical plate number 5 of MES SSR part-I(1991) (a) Excavation and earth work for drilling hole for electrode in any type of Soil. (b) PCC pit in cement concrete 1:2:4 type B-1, Pre cast RCC cover with suitable handle 40 mm thick in PCC 1:2:4 type B-1, reinforced with welded steel wire fabric weighing not less than1.87 Kg/ Sq meter. (c) Funnel with watering pipe of GI 20 mm nominal bore light grade and lugs etc complete all as specified and directed (d) 15 mm nominal bore medium grade GI protection pipe 5 meter long for protection of earthing lead complete all as specified and directed. (e) Requisite quantity of common salt and charcoal. (f) Testing of earthing. If desired result not found , earthing will be re-done by the contactor without any extra cost.

Material and labour for GI strip 32 mm x 6 mm fixing on wall / roof / ceiling with screws and boit and nuts etc as specified.

eurekaenterprises

MONA GENERATOR SEVICES PVT. LTD.

devan enterprises

Mohan Engineering Installation and Services

M/S SRI BALAJI ENTERPRISES