CWEK-58/2020-21

Amount

Earthing complete with galvanised earth plate electrode 600mm x 600mmx 6mm thick buried directly in ground vertically ( earth pit of depth not less than 2.25m below ground level ) with top edge of the earth plate not less than 1.5m below normal ground level, connecting the galvanized iron earth lead strip of 32 mm x 6mm by means of bolts, nuts, checks nut and washers made out of galvanized iron and earth wire protected by galvanized steel pipe 40mm dia (light grade) including provn of concrete pit in PCC 1:2:4 type B-1 (using 20 mm graded mechanically crushed stone aggregate), 40mm thick RCC cover slab 1:2:4 tpye B1 reinforced with XPM ( weight not less than 4kg/sqm ) and frame made of angle iron of section 40x40x6mm with lugs, 02 Nos handle of 6mm dia mild steel bar made to shape, 20mm dia GI pipe (light grade) for watering perforated at bottom 1.75m long placed on top edge of earth plate, charcoal and salt filling in alternate layer, test point made out of phopsphorus/ Bronze with fixing arrangement , funnel wire mesh and earth work in soft/loose soil, returning filling, removal of surplus soil all as shown in electrical plate No.3 of SSR Part-I and connected to earth test point and further connected jto the 33/11kv 6.3KVA power transformer body all as specified or including testing on completion. Note : The rates for earth work, GI protection pipe, funnel, wire wesh, RCC cover, etc shall be deemed to be including in quoted rates. RCC cover shall be 40mm thick in 1:2:4 type B-1 using 8mm bars @10cm c/c both way.

Material and Labour for cleaning of entire surface of the transformer body of cap 6.3 MVA, 33/11 KV alongwith radiators by applying emery cloth complete as specified and as directed

Material and Labour for denting of radiators of transformer cap 6.3 MVA, 33/11 KV,as required at site complete all as specified and as directed

Material and labour for taking down by scraping of old bubbled paint from the transformer capacity 6.3 MVA, 33/11 KV including preparation of surface, applying primer and re-painting with spray guns with two coats of synthetic enamel smoke grey paint and two coats of black paint to chassis, rollers, frame work and platform etc. complete all as directed.

Material and Labour for primer coat on the (entire body ) external surface of transformer capacity 6.3 MVA, 33/11 KV complete all as specified and as directed

Dismantling of neutral damaged current transformers 33 KV from the system and unloading them from structure etc complete all as specified and directed.

Supply and fixing of 33 KV grid post insulators to hold neutral bus bar alogwith hardware, etc. complete all as specified and directed.

Material and Labour for connecting 50 x 6 mm copper strip between neutral terminal of power transformer and earthing mat not exceeding 3m length, etc. complete all as specified and directed.

Material and Labour for testing and commissioning by checking of minimum drop voltage test between earthing and neutral point by way of injecting rated current between the test points complete all as specified and directed.

Supply, Laying, connecting including testing XLPE insulated, screened, PVC bedded galvanised steel strip or wire armoured, electric power cables (heavy duty) and over all sheathed with aluminium conductor heavy duty 185 Sqmm 3 Core, ISI marked, 11000 volts grade laid in trenches, floors, ducts passing through pipe for road crossing, Including taking down of old unserviceable UG cable from trenches etc complete, all as specified and directed.

Supply, Laying, connecting including testing XLPE insulated, screened, PVC bedded galvanised steel strip or wire armoured, electric power cables (heavy duty) and over all sheathed with aluminium conductor heavy duty 300 Sqmm 3 Core, ISI marked,11000 volts grade laid in trenches, floors, ducts passing through pipe for road crossing, Including taking down of old unserviceable UG cable from trenches etc complete, all as specified and directed.

Material and labour for Cable jointing kit for 11 KV (Earthed) grade cable for outdoor end termination heat shrinkable type joint complete with jointing material and accessories suitable for 3 core XLPE armoured aluminium conductor cable of size 185 sq mm complete, all as specified and directed.

Material and labour for Cable jointing kit for 11 KV (Earthed) grade cable for outdoor end termination heat shrinkable type joint complete with jointing material and accessories suitable for 3 core XLPE armoured aluminium conductor cable of size 300 sq mm complete, all as specified and directed.

Material and Labour for disconnecting existing 11 KV cable of size upto 300 sqmm 3 core from the power transformer and breaker end and taking out the cable from the trenches and laying the same to the other end of the existing 11 KV switch gear system complete all as specified and dirceted

Material and Labour for Checking/calibration of protection relays of the stablizer switch board complete all as specified and dirceted

Material and Labour for primary injection of 11KV and 33KV current transformers on different settings including VCB in circuit complete all as specified and dirceted as per fwg :- 11KV Relays :- (i) Auxiliary transformer fault relay : VAA332G8317BCHVX124, Make :Alstom and equivalent as approved by GE (ii) Auxiliary Tripping relay : VAJH13YF0002BBA VX24-27, Make : Alstom and equivalent as approved by GE (iii) Numerical Relay : 7SR, 1206-2JA77-1CAD/FF, Make : Simons and equivalent as approved by GE 33KV Relays :- (i) Current relay (Inverse type) 2.5-10 Amp, 50 HZ Model No CDG31EGO11SBCH, Make : Areva and equivalent as approved by GE (ii) Earth fault realy (Inverse type) 1-4 Amps, 50 HZ CT Sec-5 Amps Model No CDG31EG811SBCH and equivalent as approved by GE (iii) Over current relay (reverse type) 2.5-10 Amps, 50 HZ, CT Sec-5 Amps model No CDG31EG011SBCH and equivalent as approved by GE

Material and Labour for Secondary injection of 11KV and 33KV current transformrs on different settings and checking of stability complete all as specified and dirceted

Material and Labour for Checking of pick up and drop up valves of all relays complete all as specified and dirceted as per fwg :- 11KV Relays :- (i) Auxiliary transformer fault relay : VAA332G8317BCHVX124, Make :Alstom and equivalent as approved by GE (ii) Auxiliary Tripping relay : VAJH13YF0002BBA VX24-27, Make : Alstom and equivalent as approved by GE (iii) Numerical Relay : 7SR, 1206-2JA77-1CAD/FF, Make : Simons and equivalent as approved by GE 33KV Relays :- (i) Current relay (Inverse type) 2.5-10 Amp, 50 HZ Model No CDG31EGO11SBCH, Make : Areva and equivalent as approved by GE (ii) Earth fault realy (Inverse type) 1-4 Amps, 50HZ CT Sec-5 Amps Model No CDG31EG811SBCH and equivalent as approved by GE (iii) Over current relay (reverse type) 2.5-10 Amps, 50 HZ, CT Sec-5 Amps model No CDG31EG011SBCH and equivalent as approved by GE

Material and Labour for Stability testing of relays against unbalance complete all as specified and dirceted

Material and Labour for checking of tripping time as per graph and time taen to analyze difference between time and graph complete all as specified and dirceted

Material and Labour for Checking of instantanious and inverse definit minimum timing of all relays by injecting different parameters and programming there of as per required data complete all as specified and dirceted

Material and Labour for Polarity testing of 11KV and 33KV CTs main and out going feeders complete all as specified and dirceted

Material and Labour for Control checking of 11KV and 33KV main and out going feeders complete all as specified and dirceted

Material and Labour for Calibration and programming of all KV, PF, AMP and multifunction meters on different settings and as per the CTR Ratios complete all as specified and dirceted

Material and Labour for arresting of oil leakages on various places of 33 KV power transformers including testing after arresting complete all as specified and as directed.

Supply and fixing marshaling boxes for oil temp and winding temp meters and their terminal blocks complete as specified and as directed

Material and Labour for replacement of all connectors of tublar bus bars complete all as specified and as directed

Material and Labour for replacement of all unserviceable parts of the bus bars HT 33/11 KV complete all as specified and as directed

Material and Labour for rewiring of oil temp and winding temp protection after providing the marshalling kiosk under respective item complete all as specified and as directed

Material and Labour for replacement of silica gel breathers for both the power transformers complete all as specified and as directed

Supply and replace the following materials in HT 33 KV and 11 KV switch gears and testing on completion complete as directed :-

Double compressure cable hold glands

Terminal Blocks

Cable ties

Printed ferules

Old cloths

Kerosine oil

Emery Cloth

Insulation PVC adhesive tape

Tublar bus bars copper 25 x 1.5 mm

Heat shrink tubes RYB Colours

8 mm galvanised nuts, bolts and washers

Marshalling kiosk for transformer

Power oil 60KV

Bus bar Clamps

Earthing complete with galvanised earth plate electrode 600mm x 600mmx 6mm thick buried directly in ground vertically ( earth pit of depth not less than 2.25m below ground level ) with top edge of the earth plate not less than 1.5m below normal ground level, connecting the galvanized iron earth lead strip of 25 mm x 4 mm by means of bolts, nuts, checks nut and washers made out of galvanized iron and earth wire protected by galvanized steel pipe 40mm dia (light grade) including provn of concrete pit in PCC 1:2:4 type B-1 (using 20 mm graded mechanically crushed stone aggregate), 40mm thick RCC cover slab 1:2:4 tpye B1 reinforced with XPM ( weight not less than 4kg/sqm ) and frame made of angle iron of section 40x40x6mm with lugs, 02 Nos handle of 6mm dia mild steel bar made to shape, 20mm dia GI pipe (light grade) for watering perforated at bottom 1.75m long placed on top edge of earth plate, charcoal and salt filling in alternate layer, test point made out of phopsphorus/ Bronze with fixing arrangement , funnel wire mesh and earth work in soft/loose soil, returning filling, removal of surplus soil all as shown in electrical plate No.3 of SSR Part-I and connected to earth test point and further connected jto the 33/11kv 6.3KVA power transformer body all as specified or including testing on completion. Note : The rates for earth work, GI protection pipe, funnel, wire wesh, RCC cover, etc shall be deemed to be including in quoted rates. RCC cover shall be 40mm thick in 1:2:4 type B-1 using 8mm bars @10cm c/c both way.

Material and Labour for replacement of damaged earth continuity conductor or main earthing lead fixed to wall on batten or recess or chases or burried in ground or drawn in conduit/pipe or fixed to poles or any other indicated situation for loop earthing etc.as required 50x6mm copper strip complete all as specified and as directed

Material and Labour for replacement of damaged earth continuity conductor or main earthing lead fixed to wall on batten or recess or chases or burried in ground or drawn in conduit/pipe or fixed to poles or any other indicated situation fer loop earthing etc.as required 32x6mm galvanised iron strip complete all as specified and as directed

Material and labour for Anti-climbing device, spikes type fabricated out of M.S. Bars (round,square and flat) including nuts, bolts, washers and welding in two halves made to shape to suit the cross section of the pole, complete, all as specified and as directed.

Supply and fixing in repair disc type insulators, porcelain, vitreous 145 mm height and 255 mm dia ball and socket type, white, brown or green disc, single disc assembly for tension with tension clamps for conductor, working pressure 11000 volts grade, complete, all as specified and as directed.

Supply and fixing lightning arrester non linear type, with mounting accessories complete fixed on cross arm of poles and connected with aluminium conductor with all fittings, trasmission class, earth system having discharge capacity 30 Kilo Amps , complete, all as specified and as directed.

Supply and fixing lightning arrester non linear type, with mounting accessories complete fixed on cross arm of poles and connected with aluminium conductor with all fittings, trasmission class, earth system having discharge capacity 65 Kilo Amps , and suitable for working pressure of 11 KV grade complete, all as specified and as directed.

Supply and fixing lightning arrester non linear type, with mounting accessories complete fixed on cross arm of poles and connected with aluminium conductor with all fittings, trasmission class, earth system having discharge capacity 65 Kilo Amps , and suitable for working pressure of 33 KV grade complete, all as specified and as directed.

Note:- Amount of credit of Rs. 73960.00 for retrieved materials is mentioned in Schedule of Credit Page No. 25 of tender documents in pdf form which will be deducted offline while acceptance of tender.