Augmentation of 220/132kVGrid Sub Station Mir Bazar from 320 MVA to 475 MVA

Amount

MAIN EQUIPMENT

105 MVA 220/√3/132/√3/11 kV ONAN / ONAF / OFAF cooled, oil immersed Single phase Auto Power Transformer with OLTC, SCADA, online DGA analysis, Co mpatible RTCC, HV , LV, TV & Neutral Connectors and other required accessories and fittings as per Technical Specifications.

Oil for first filling plus 10% extra in non-returnable containers as specified in Technical specification complete for 4 Units

NIFPS for 1 Number 105MVA, 220/132kV Single Phase Spare Transformer

3 pole, 145Kv, 2500Amp, 50c/s,31.5kA, SF6 Gas filled, out door circuit breakers with offered operating mechanism, all accessories,clamps, auxiliaries and marshalling boxes / kiosks, SF6 Gas (first filling plus 10% extra) etc. complete in all respects as specified in the technical specification

145kV, 50c/s , 2000 Amp, 31.5kA for one second, Ac motor operated horizontal double break, outdoor type Single pole Isolators without Earthing Blades with all accessories,clamps, auxiliaries, marshalling boxes, other essentials, complete in all respects as specified in the technical specification

145kV, 50c/s , 2000 Amp, 31.5kA for one second, Ac motor operated horizontal double break, outdoor type Single pole Isolators with One Earthing Blades with all accessories,clamps, auxiliaries, marshalling boxes, other essentials, complete in all respects as specified in the technical specification

145kV, 50c/s , 2500 Amp, 31.5kA for one second, Ac motor operated horizontal double break, outdoor type 3 pole Isolators with Two Earthing Blades.with all accessories,clamps, auxiliaries, marshalling boxes, other essentials, complete in all respects as specified in the technical specification

145kV, 50c/s , 2000Amp, 31.5kA for one second, Ac motor operated horizontal double break, outdoor type 3 pole Isolators with One earthing blades ,clamps, auxiliaries, marshalling boxes, other essentials, complete in all respects as specified in the technical specification

145kV, 50c/s , 2000Amp, 31.5kA for one second, Ac motor operated horizontal double break, outdoor type 3 pole Isolators without earthing blades ,clamps, auxiliaries, marshalling boxes, other essentials, complete in all respects as specified in the technical specification

145kV, 50c/s , 2000 Amp, 31.5kA for one second, Ac motor operated horizontal double break, outdoor type 3 pole Isolators with Two Earthing Blades.(rate given is 1.3xrate of 145kv,2000A,3pole with out earthing blades ,clamps, auxiliaries, marshalling boxes, other essentials, complete in all respects as specified in the technical specification

36kV, 50c/s , 2500 Amp, 25kA for one second, Ac motor operated horizontal double break, outdoor type Two pole Isolators without Earthing Switches.with all accessories,clamps, auxiliaries, marshalling boxes, other essentials, complete in all respects as specified in the technical specification

36kV, 50c/s , 2500 Amp, 25kA for one second, Ac motor operated horizontal double break, outdoor type 3 pole Isolators with Two Earthing Blades.with all accessories,clamps, auxiliaries, marshalling boxes, other essentials, complete in all respects as specified in the technical specification

Single Phase 50 c/s, outdoor metal oxide gapless type, 200KV (rms) Surge Arrestor including Surge counters/monitors, insulating base all associated accessories, clamps, auxiliaries, complete in all respects as specified in the technical specification

Single Phase 50 c/s, outdoor metal oxide gapless type, 120KV (rms) Surge Arrestor including Surge counters/monitors, insulating base all associated accessories, clamps, auxiliaries, complete in all respects as specified in the technical specification

220KV Post Insulators Solid Core Type, Power Frequency Withstand Voltage 460KVP Dry lightning impulse withstand voltage ± 900 (KVP) , Max. RIV (in microV) between 0.5Mhz to 1Mhz at 156 kV (rms) for 220kV phase to ground voltage >1000mV.

132KV Post Insulators Solid Core Type, Power Frequency WithstandVoltage 275KVP Dry lightning impulse withstand voltage ± 650 (KVP)

33KV Post Insulators Solid Core Type, Po wer Frequency Withstand Voltage95KVP Dry lightning impulse withstand voltage ± 170 (KVP)

Single phase, 50 c/s 145KV Current Transformers (2000-1000-500/1-1-1-1-1A 5 Core 31.5KA for one second, rated dynamic current 100KA(peak), Class A insulation, Burden 20 VA including first fill of transformer oil plus 10% extra and all accessories,clamps, auxiliaries etc. complete in all respects as specified in the specification

STRUCTURES

Fabrication, galvanisation, supply including packing and forwarding, transportation charges of 220 kv, 132 kV & 33 kV structures

Galvanised Nuts and Bolts

POWER AND CONTROL CABLES

2 Core, 2.5 sq mm, 1100 V, PVC insulated, PVC sheathed, FRLS, galvanised steel wire/ strip armoured stranded copper conductor control cable complete as per specifications

8 Core, 2.5 sq mm, 1100 V, PVC insulated, PVC sheathed, FRLS, galvanised steel wire/ strip armoured stranded copper conductor control cable complete as per specifications

19 Core, 2.5 sq mm, 1100 V, PVC insulated, PVC sheathed, FRLS, galvanised steel wire/ strip armoured stranded copper conductor control cable complete as per specifications

3.5 Core, 25 sq mm, 1100 V, PVC insulated, PVC sheathed, FRLS, galvanised steel wire/ strip armoured stranded copper conductor control cable complete as per specifications

3.5 Core, 25 sq mm, 1100 V, PVC insulated, PVC sheathed, FRLS, galvanised steel wire/ strip armoured stranded copper conductor control cable complete as per specifications

Lugs, Ferrules, Welding Material, Cotton Waste etc

Marshalling kiosk with Kiosk frames mild steel structural sections for pressed and shaped cold-rolled sheet steel, thickness not less than 2.0 mm. Frames shall be enclosed in cold-rolled sheet steel of thickness not less than 1.6 mm. Doors and covers shall also be cold rolled sheet steel of thickness not less than 1.6 mm. complete structures shall be rigid, self- supporting, free from flows, twists and bends. Dust and vermin proof construction and shall be provided with a degree of protection of IP: 55, with Copper Bar earthing

CONDUCTOR AND HARD WARE FITTINGS

500mm2 ACSR Moose Conductor (a)Aluminium 54/3.53 mm (b) Steel 3.53 mm overall diameter 31.77mm Approx. Wt. 1998 kg/km ultimate strength 159.60 KN

Single Tension Fittings For Single 500mm2 ACSR shall have minimu m failing load of 100 % ultimate strength of Bundle conductors with compressive type Tension clamps having slipping strength 95% of ultimate Strength of conductors. The ball and socket designation must be 20mm. Minimu m Ultimate strength (Tensile strength) shall be 70 KN.

Single Suspension Fittings For Single 500mm2 conductor shall have minimu m failing load of 50% ultimate strength of bundle conductors with Forged Steel Hanger free center type without bolt only having slipping strength 15% of ultimate strength of conductor.The ball and socket designation must be 20mm.

Single Tension Fittings For Twin 500 mm2 ACSR shall have minimu m failing load of 100% ultimate strength of Bundle conductors with comp ressive type Tension clamps having slipping strength 95% of ultimate Strength of conductors. The ball and socket designation must be 20mm. Minimu m Ultimate strength (Tensile strength) shall be 70 KN.

Single Suspension Fittings For Twin 500mm2 conductor shall have minimum failing load of 50% ultimate strength of bundle conductors with Forged Steel Hanger free center type without bolt only having slipping strength 15% of ultimate strength of conductor.The ball and socket designation must be20mm.

T Clamps 500mm2 /500mm2, made of Alluminium Alloy and shall comply in all respects with IS:5561-1970 (latest edition)

P I Clamps made of Alluminium Alloy and shall comply in all respects withS:5561-1970 (latest edition)

P G Clamps made of Alluminium Alloy and shall comply in all respects withS:5561-1970 (latest edition)

Disc Insulators 70 KN,Ball & Socket type, 145mm height and 255mm dia. Creepage total 430 mm and 260 mm protected.

Disc Insulators 120 KN,Ball & Socket type, 145mm height and 280mm dia. Creepage total 430 mm and 260 mm protected.

Spacers For Twin 500mm2 must be one-piece construction of aluminum alloy of an approved type without any projection, cuts, abrasions etc. or chattering parts and shall conform to IS:10162

Earthwire 7/3.15 mm,3.41 ohms/km max.d.c. resistance galvanized steel earth strand at 20ºC , 56KN ultimate tensile strength, 11.5x10-6 ºC Coefficient of linear expansion.

Earthwire Tension Clamps comprise of compression type tension clamp with two ‘D’ shackles, jumper terminals, nuts & bolts and washers etc.slip strength shall not be less than 95% of the ultimate strength of the ground wire. Conductivity shall not be less than corresponding length of GSS ground wire

QUAD ACSR BUS 132 KV LEVEL

CONDUCTOR AND HARD WARE FITTINGS

500mm2 ACSR Moose Conductor (a)Aluminium =54/3.53 mm (b) Steel 3.53 mm overall diameter 31.77mm Approx. Wt. 1998 kg/km ultimate strength 159.60 KN

Spacers For Quad 500mm2 must be one-piece construction of aluminum alloy of an approved type without any projection, cuts, abrasions etc. or chattering parts and shall conform to IS:10162(rate given is 1.6xrate of(spacer for twin conductor),or it can vary)

Single Tension Fittings For Quad 500mm2 ACSR shall have minimu m failing load of 100 % ultimate strength of Bundle conductors with compressive type Tension clamps having slipping strength 95% of ultimate Strength of conductors. The ball and socket designation must be 20mm. Minimu m Ultimate strength (Tensile strength) shall be 70 KN.

Single Suspension Fittings For Quad 500mm2 conductor shall have minimu m failing load of 50% ultimate strength of bundle conductors with Forged Steel Hanger free center type without bolt only having slipping strength 15% of ultimate strength of conductor.The ball and socket designation must be 20mm.

T Clamps Quad 500mm2 , made of Alluminium Alloy and shall comply in all respects with IS:5561-1970 (latest edition)

T Clamps 500mm2 , made of Alluminium Alloy and shall comply in all respects with IS:5561-1970 (latest edition)

E A R T H I N G M A T

MS Rod 40mm Dia

G S Flat 75 mm x 12 mm

G S Flat 50 mm x 8 mm

C I Earth pipe 155 mm, 3.05 m long and not less than 12.7 mm thick required for both earth pits & test pits, coal/coke, salt and all other required materials

GI earth pipe 50 mm dia, 3.05 m long as per IS : 3043 for both earth pits & test pits, coal/coke, salt and all other required materials

ERECTION OF EQUIPMENT /MATERIAL

105 MVA 220/√3/132/√3/11 kV ONAN / ONAF / OFAF cooled, oil immersed Single phase Auto Power Transformer with OLTC, SCADA, online DGA analysis, Co mpatible RTCC, HV , LV, TV & Neutral Connectors and other required accessories and fittings as per Technical Specifications.

Oil for first filling plus 10% extra in non-returnable containers as specified in Technical specification complete for 4 Units

NIFPS for 1 Number 105MVA, 220/132kV Single Phase Spare Transformer

3 pole, 145Kv, 2500Amp, 50c/s,31.5kA, SF6 Gas filled, out door circuit breakers with offered operating mechanism, all accessories,clamps, auxiliaries and marshalling boxes / kiosks, SF6 Gas (first filling plus 10% extra) etc. complete in all respects as specified in the technical specification

145kV, 50c/s , 2000 Amp, 31.5kA for one second, Ac motor operated horizontal double break, outdoor type Single pole Isolators without Earthing Blades with all accessories,clamps, auxiliaries, marshalling boxes, other essentials, complete in all respects as specified in the technical specification

145kV, 50c/s , 2000 Amp, 31.5kA for one second, Ac motor operated horizontal double break, outdoor type Single pole Isolators with One Earthing Blades with all accessories,clamps, auxiliaries, marshalling boxes, other essentials, complete in all respects as specified in the technical specification

145kV, 50c/s , 2500 Amp, 31.5kA for one second, Ac motor operated horizontal double break, outdoor type 3 pole Isolators with Two Earthing Blades.with all accessories,clamps, auxiliaries, marshalling boxes, other essentials, complete in all respects as specified in the technical specification

145kV, 50c/s , 2000Amp, 31.5kA for one second, Ac motor operated horizontal double break, outdoor type 3 pole Isolators with One earthing blades ,clamps, auxiliaries, marshalling boxes, other essentials, complete in all respects as specified in the technical specification

145kV, 50c/s , 2000Amp, 31.5kA for one second, Ac motor operated horizontal double break, outdoor type 3 pole Isolators without earthing blades ,clamps, auxiliaries, marshalling boxes, other essentials, complete in all respects as specified in the technical specification

145kV, 50c/s , 2000 Amp, 31.5kA for one second, Ac motor operated horizontal double break, outdoor type 3 pole Isolators with Two Earthing Blades.(rate given is 1.3xrate of 145kv,2000A,3pole with out earthing blades ,clamps, auxiliaries, marshalling boxes, other essentials, complete in all respects as specified in the technical specification

36kV, 50c/s , 2500 Amp, 25kA for one second, Ac motor operated horizontal double break, outdoor type Two pole Isolators without Earthing Switches.with all accessories,clamps, auxiliaries, marshalling boxes, other essentials, complete in all respects as specified in the technical specification

36kV, 50c/s , 2500 Amp, 25kA for one second, Ac motor operated horizontal double break, outdoor type 3 pole Isolators with Two Earthing Blades.with all accessories,clamps, auxiliaries, marshalling boxes, other essentials, complete in all respects as specified in the technical specification

Single Phase 50 c/s, outdoor metal oxide gapless type, 200KV (rms) Surge Arrestor including Surge counters/monitors, insulating base all associated accessories, clamps, auxiliaries, complete in all respects as specified in the technical specification

Single Phase 50 c/s, outdoor metal oxide gapless type, 120KV (rms) Surge Arrestor including Surge counters/monitors, insulating base all associated accessories, clamps, auxiliaries, complete in all respects as specified in the technical specification

220KV Post Insulators Solid Core Type, Power Frequency Withstand Voltage 460KVP Dry lightning impulse withstand voltage ± 900 (KVP) , Max. RIV (in microV) between 0.5Mhz to 1Mhz at 156 kV (rms) for 220kV phase to ground voltage >1000mV.

132KV Post Insulators Solid Core Type, Power Frequency WithstandVoltage 275KVP Dry lightning impulse withstand voltage ± 650 (KVP)

33KV Post Insulators Solid Core Type, Po wer Frequency Withstand Voltage95KVP Dry lightning impulse withstand voltage ± 170 (KVP)

Single phase, 50 c/s 145KV Current Transformers (2000-1000-500/1-1-1-1-1A 5 Core 31.5KA for one second, rated dynamic current 100KA(peak), Class A insulation, Burden 20 VA including first fill of transformer oil plus 10% extra and all accessories,clamps, auxiliaries etc. complete in all respects as specified in the specification

STRUCTURES

Erection of Steel Structures

POWER AND CONTROL CABLES

2 Core, 2.5 sq mm, 1100 V, PVC insulated, PVC sheathed, FRLS, galvanised steel wire/ strip armoured stranded copper conductor control cable complete as per specifications

8 Core, 2.5 sq mm, 1100 V, PVC insulated, PVC sheathed, FRLS, galvanised steel wire/ strip armoured stranded copper conductor control cable complete as per specifications

19 Core, 2.5 sq mm, 1100 V, PVC insulated, PVC sheathed, FRLS, galvanised steel wire/ strip armoured stranded copper conductor control cable complete as per specifications

3.5 Core, 25 sq mm, 1100 V, PVC insulated, PVC sheathed, FRLS, galvanised steel wire/ strip armoured stranded copper conductor control cable complete as per specifications

3.5 Core, 25 sq mm, 1100 V, PVC insulated, PVC sheathed, FRLS, galvanised steel wire/ strip armoured stranded copper conductor control cable complete as per specifications

Lugs, Ferrules, Welding Material, Cotton Waste etc

Marshalling kiosk with Kiosk frames mild steel structural sections for pressed and shaped cold-rolled sheet steel, thickness not less than 2.0 mm. Frames shall be enclosed in cold-rolled sheet steel of thickness not less than 1.6 mm. Doors and covers shall also be cold rolled sheet steel of thickness not less than 1.6 mm. complete structures shall be rigid, self- supporting, free from flows, twists and bends. Dust and vermin proof construction and shall be provided with a degree of protection of IP: 55, with Copper Bar earthing

CONDUCTOR AND HARD WARE FITTINGS

500mm2 ACSR Moose Conductor (a)Aluminium 54/3.53 mm (b) Steel 3.53 mm overall diameter 31.77mm Approx. Wt. 1998 kg/km ultimate strength 159.60 KN

Single Tension Fittings For Single 500mm2 ACSR shall have minimu m failing load of 100 % ultimate strength of Bundle conductors with compressive type Tension clamps having slipping strength 95% of ultimate Strength of conductors. The ball and socket designation must be 20mm. Minimu m Ultimate strength (Tensile strength) shall be 70 KN.

Single Suspension Fittings For Single 500mm2 conductor shall have minimu m failing load of 50% ultimate strength of bundle conductors with Forged Steel Hanger free center type without bolt only having slipping strength 15% of ultimate strength of conductor.The ball and socket designation must be 20mm.

Single Tension Fittings For Twin 500 mm2 ACSR shall have minimu m failing load of 100% ultimate strength of Bundle conductors with comp ressive type Tension clamps having slipping strength 95% of ultimate Strength of conductors. The ball and socket designation must be 20mm. Minimu m Ultimate strength (Tensile strength) shall be 70 KN.

Single Suspension Fittings For Twin 500mm2 conductor shall have minimum failing load of 50% ultimate strength of bundle conductors with Forged Steel Hanger free center type without bolt only having slipping strength 15% of ultimate strength of conductor.The ball and socket designation must be20mm.

T Clamps 500mm2 /500mm2, made of Alluminium Alloy and shall comply in all respects with IS:5561-1970 (latest edition)

P I Clamps made of Alluminium Alloy and shall comply in all respects withS:5561-1970 (latest edition)

P G Clamps made of Alluminium Alloy and shall comply in all respects withS:5561-1970 (latest edition)

Disc Insulators 70 KN,Ball & Socket type, 145mm height and 255mm dia. Creepage total 430 mm and 260 mm protected.

Disc Insulators 120 KN,Ball & Socket type, 145mm height and 280mm dia. Creepage total 430 mm and 260 mm protected.

Spacers For Twin 500mm2 must be one-piece construction of aluminum alloy of an approved type without any projection, cuts, abrasions etc. or chattering parts and shall conform to IS:10162

Earthwire 7/3.15 mm,3.41 ohms/km max.d.c. resistance galvanized steel earth strand at 20ºC , 56KN ultimate tensile strength, 11.5x10-6 ºC Coefficient of linear expansion.

Earthwire Tension Clamps comprise of compression type tension clamp with two ‘D’ shackles, jumper terminals, nuts & bolts and washers etc.slip strength shall not be less than 95% of the ultimate strength of the ground wire. Conductivity shall not be less than corresponding length of GSS ground wire

QUAD ACSR BUS 132 KV LEVEL

CONDUCTOR AND HARD WARE FITTINGS

500mm2 ACSR Moose Conductor (a)Aluminium =54/3.53 mm (b) Steel 3.53 mm overall diameter 31.77mm Approx. Wt. 1998 kg/km ultimate strength 159.60 KN

Spacers For Quad 500mm2 must be one-piece construction of aluminum alloy of an approved type without any projection, cuts, abrasions etc. or chattering parts and shall conform to IS:10162(rate given is 1.6xrate of(spacer for twin conductor),or it can vary)

Single Tension Fittings For Quad 500mm2 ACSR shall have minimu m failing load of 100 % ultimate strength of Bundle conductors with compressive type Tension clamps having slipping strength 95% of ultimate Strength of conductors. The ball and socket designation must be 20mm. Minimu m Ultimate strength (Tensile strength) shall be 70 KN.

Single Suspension Fittings For Quad 500mm2 conductor shall have minimu m failing load of 50% ultimate strength of bundle conductors with Forged Steel Hanger free center type without bolt only having slipping strength 15% of ultimate strength of conductor.The ball and socket designation must be 20mm.

T Clamps Quad 500mm2 , made of Alluminium Alloy and shall comply in all respects with IS:5561-1970 (latest edition)

T Clamps 500mm2 , made of Alluminium Alloy and shall comply in all respects with IS:5561-1970 (latest edition)

E A R T H I N G M A T

MS Rod 40mm Dia

G S Flat 75 mm x 12 mm

G S Flat 50 mm x 8 mm

C I Earth pipe 155 mm, 3.05 m long and not less than 12.7 mm thick required for both earth pits & test pits, coal/coke, salt and all other required materials

GI earth pipe 50 mm dia, 3.05 m long as per IS : 3043 for both earth pits & test pits, coal/coke, salt and all other required materials

DISMANTALLING OF EQUIPMENT

145 KV, 3-pole SF6 Breaker

145kV, 3-pole, Isolator

145kV Post insulator Insulator

36kV Surge Arrestor

DISMANTALLING OF STRUCTURE

145Kv beams,33 KV COLUMN BEAMS ,XER POLE MOUNTDED INCLUDING WITH ALLIED EQUIPMENTS & RE ERECTION OF SAME

Dismantaling of existing twin bus bars main and transfer bus by bringing down including opening of connectors, jumpers, droppers, tiers , beams etc for facilitation of conversion(twin Moose into Quad Moose System)

FOUNDATION FOR GANTRIES AND EQUIPMENT SUPPORTING STRUCTURES

Excavation in all type of soils including mixed soils (i.e. soils containing pebbles/boulders etc.) for any section including all labour, POL, hire charges of equipments and T&Ps etc. including sheeting & shoring, dewatering, lifting, handling and stock piling of excavated materials, back filling with excavated or borrowed earth and disposal of surplus excavated earth as directed for all leads & lifts complete as per specification, construction drawings and direction of Engineer in-charge.

Plain cement concrete of specified grade and strength conforming to IS: 456 placed as sub-base under structural concrete or as shown in approved construction drawings at all levels including cost of all materials, labour, hire charges of equipments and T&P, POL, shuttering etc complete for handling, transportation, batching, mixing, placing, vibrating, compacting, leveling, curing etc. as per specification, construction drawings and direction of Engineer-in-charge.

Concrete of M-10 grade having cube strength of 10 N / mm2 with 40 mm nominal size coarse aggregate.

Structural cement concrete (plain/ reinforced) of specified 28 days strength (nominal size of coarse aggregate 20 mm) at all levels, including cost of all materials, labour, hire charges of equipments and T&P, POL, shuttering, curing, etc complete for handling, transportation, batching, mixing, placing, vibrating, and rendering, cleaning and finishing the exposed over ground surfaces with cement mortar 1:3 (1 cement: 3 sand) to give smooth and even surface but excluding the cost of reinforcement complete as per specification, construction drawings and direction of Engineer-in-charge.

Concrete of M25 grade having cube strength of 25 N/mm2 at 28 days.

High yield strength cold deformed steel reinforcement bars conforming to IS: 1786 for R.C.C. or any other work including the cost of all materials, binding wire, labour, hire charges of equipments and T&P, bending, binding, placing and tieing in position, POL etc. complete as per specification, construction drawings and direction of Engineer-in-charges.

Supply and fixing of Foundation Bolts Galvanised

FOUNDATION FOR TRANSFORMER

Excavation in all type of soils including mixed soils (i.e. soils containing pebbles/boulders etc.) for any section including all labour, POL, hire charges of equipments and T&Ps etc. including sheeting & shoring, dewatering, lifting, handling and stock piling of excavated materials, back filling with excavated or borrowed earth and disposal of surplus excavated earth as directed for all leads & lifts complete as per specification, construction drawings and direction of Engineer in-charge.

Plain cement concrete of specified grade and strength conforming to IS: 456 placed as sub-base under structural concrete or as shown in approved construction drawings at all levels including cost of all materials, labour, hire charges of equipments and T&P, POL, etc. complete for handling, transportation, batching, mixing, placing, vibrating, compacting, leveling, curing etc. as per specification, construction drawings and direction of Engineer-in-charge.

Concrete of M-10 grade (below foundation) having cube strength of 10 N / mm2 with 40 mm nominal size coarse aggregate.

Concrete of M-15 grade (for making slope in transformer pit in second stage) having cube strength of 15 N / mm2 with 20 mm nominal size coarse aggregate.

Structural Cement Concrete ( plain/ reinforced) of specified 28 days strength (nominal size of coarse aggregate 20 mm) at all levels, including cost of all materials, labour, hire charges of equipments and T&P, POL, shuttering, curing, etc. complete for handling, transportation, batching, mixing, placing, vibrating, and rendering, cleaning and finishing the exposed over ground surfaces with cement mortar 1:3 (1 cement: 3 sand) to give smooth and even surface but excluding the cost of reinforcement complete as per specification, construction drawings and direction of Engineer-in-charges.

Concrete of M25 grade having cube strength of 25 N/mm2 at 28 days.

Supply & installation of 50 Kg, broad gauge rails conforming to Indian Railways specifications and fixing on RCC pedstrals including cost of all materials, labour, hire charges of equipments and T&P, fixing bolts, base plates, clamping plates etc. but excluding the cost of excavation, concrete, reinforcement, shuttering etc complete as per specification, construction drawings and direction of Engineer-ln-Charge

High yield strength cold deformed steel reinforcement bars conforming to IS: 1786 for R.C.C. or any other work including the cost of all materials, binding wire, labour, hire charges of equipments and T&P, bending, binding, placing and tieing in position, POL etc. complete as per specification, construction drawings and direction of Engineer-in-charges.

Miscellaneous steel works including providing & fixing of plates.edge protection angles, steel beams, grating, etc complete.

Miscellaneous works including laying of 200mm thick (Minimum) boulders of size 40-60mm over the grating

Miscellaneous works for oil drainage and disposal arrangement including construction of oil water separator, central oil collecting pit, NP3/NP4 and PVC pipes and Manholes with covers etc.

FIRE PROTECTION WALL

Excavation in all type of soils including mixed soils (i.e. soils containing pebbles/boulders etc.) for any section including all labour, POL, hire charges of equipments and T&Ps etc. including slifts complete as per specification, construction drawings and direction of Engineerheeting & shoring, dewatering, lifting,handling and stock piling of excavated materials, back filling with excavated or borrowed earth and disposal of surplus excavated earth as directed for all leads & in-charge.

Plain cement concrete of specified grade and strength conforming to IS: 456 placed as sub-base under structural concrete or as shown in approved construction drawings at all levels including cost of all materials, labour, hire charges of equipments and T&P, POL, etc. complete for handling, transportation,batching, mixing, placing, vibrating, compacting, leveling, curing etc. as per specification, construction drawings and direction of Engineer-in-charge.

Concrete of M-10 grade having cube strength of 10 N / mm2 with 40 mm nominal size coarse aggregate._

Structural cement concrete ( plain/ reinforced) of specified 28 days strength (nominal size of coarse aggregate 20 mm) at all levels, including cost of. All materials, labour, hire charges of equipments and T&P, POL, shuttering, curing,etc. complete for handling, transportation, batching, mixing, placing, vibrating, and rendering, cleaning and finishing the exposed over ground surfaces with cement mortar 1:3 (1 cement: 3 sand) to give smooth and even surface but excluding the cost of centering, shuttering and reinforcement complete as per specification,construction drawings and direction of Engineer-in-charges.

Concrete of M25 grade having cube strength of 25 N/mm at 28 days.

High yield strength cold deformed steel reinforcement bars conforming to IS: 1786 for R.C.C. or any other work including the cost of all materials, binding wire, labour, hire charges of equipments and T&P, bending, binding, placing and tieing in position, POL etc. complete as per specification, construction drawings and direction of Engineer-in-charges.

Levelling & grading of the complete outdoor switch yard after construction of foundations,cable trenches,drains,with compacted including ramming, watering,compaction ,filling in layers 200 mm,as per drawing/direction of engineer in charge.

M7.5 Plain cement concrete of specified grade and strength conforming to IS: 456 placed as sub-base under structural concrete or as shown in approved construction drawings at all levels including cost of all materials, labour, hire charges of equipments and T&P, POL, shuttering etc complete for handling, transportation, batching, mixing, placing, vibrating, compacting, leveling, curing etc. as per specification, construction drawings and direction of Engineer-in-charge.

Providing 150 mm thick (compacted tickness) layer of 20 mm nominal size metal over M 7.5 grade concrete layer & providing the suitable slopes towards the nearest drains including the cost of all materials, labor, higher charges of equipments & T&P, POL etc. complete as per specification, construction drawings and direction of engineer in charge.

Providing Anti Weed treatment as per specification

Dismantling of foundations which are to be replaced

S P A R E

Internal Communication-Telephone/Net working

Tan Delta Testing Kit

Transformer Oil Testing Kit.

Online DGA for all new 105 MVA Transformers

MANDATORY SPARES

POWER TRANSFORMERS

Bushing with metal parts & gaskets of each rating including Neutral bushing

Local and remote winding temperature indicator complete with sensing device & contacts

Oil temperature indicator with contacts & sensing device

Oil cooler pump with motor

Cooler fan with motor

Set of valves (complete set for one transformer)

Set of pressure gauge (1 No. of each type and range)

Set of pressure switch (1 No. of each type and range)

Set of starter, contactor, relays and switch for electrical control panels (1 set of each type and range)

Breather assembly (one of each type) for conservator and OLTC

Buchholz relay complete with floats & contacts

Tap position indicator (local and remote)

Tap changer diverter switch contacts

Aux. Transformer for control of control cooler cabinet and OLTC

Bushing CTs of each type and ratio

Fuses / MCB (complete set for one transformer)

Indicating lamps (one set consisting of complete replacement for one transformer)

Air cell for main conservator

Terminal connector (complete set for one transformer)

Oil surge relay for OLTC

Drive motor for OLTC with gear assembly

Oil sampling bottles (one liter capacity)

Oil storage tank (20 KL)

Spare transformer oil

SF6 GAS CIRCUIT BREAKER (For Each Voltage Level as Applicable)

Closing coils with resistor (220 V operating voltage)

Tripping coils with resistor (220 V operating voltage)

SF6 gas

Relays, Power contactors, Push buttons, limit switches, timers, MCBs and switch fuse units etc.

Rubber gaskets, ‘O’ rings & seals (complete replacement for one CB/one pole)

Terminal pads & connectors of each type

Closing coil assembly

Trip coil assembly

Set of control valves (of each type)

Auxiliary contact assembly

Micro filter set

Micro switches for aux. Contact assembly

Pressure gauges & coupling device of each type

All types of coupling for SF6 gas

Pipe length (copper & steel)

Pneumatic operating mechanism (if applicable):

Complete operating mechanism

All types of valves for pneumatic operating mechanism

Rubber gaskets, ‘O’ rings & seals for operating mechanism

ISOLATOR / DISCONNECTOR / EARTH SWITCH

Copper contact finger for female & male contacts of each type

Bearings for isolators

Terminal pad and connectors of each type

Relays, Power contactors, Push buttons, limit switches, timers, MCBs, switch fuse units and resistors for electrical control circuit as per approved schematic

INSTRUMENT TRANSFORMERS

Single Phase Current Transformer 245 kV

Single Phase Current Transformer 145 kV

Single Phase Capacitor Voltage Transformer

Single Phase Surge Arrester complete in all respects with terminal connector etc including cost of surge counter.

DAMODHARTECH INTERNATIONAL PVT. LTD.

powertech engineers

M/s Kanti Prasad Mittal

VIKRAN Engineering and Exim Pvt Ltd

JSP Projects Pvt. Ltd.