REPAIR MAINTAINANCE OF HT EXTERNAL ELECTRIC INSTALLATION AT LIKABALI MIL STN

Amount

Material & Labour for Dismantling steel poles/struts, any size of HT OH line by taking necessary shut down, dismantling OH line conductor and shifting to MES store yard keeping in safe custody to issue under Schedule of credit complete all as specified and as directed.

Material & Labour for steel tubular swaged pole 410 SP-55 (11.0 metre long) seamless type, including CI base plate, finial taper plug, bolts, nuts & screws as per IS 2713 Part -I & II including painting with two coats of bituminious paint over a coat of red oxide zinc chrome primer on exposed portion and making strips of width 30 cm upto 1.5 m from the ground level in black and yellow shade in alternate layer including numbering of poles using two coats of synthetic enamel paint over a coat of red oxide zinc chrome primer and two coats of anticorrosive paint over a coat of red oxide primer to embedded portion of pole including making good to match existing area complete all as specified and as directed. Note- Excavation & Earthwork and PCC shall be measured and paid seperately. Volume occupied by steel pole shall be deducted to derive the quantity of PCC.

Supply and fixing MS Cross arms, bracings, supports, clamp and back plates fabricated from structural steel section including nuts, bolts, washers, welding, bending cold or hot drilling holes for bolts in any type, shape or as indicated and directed inclusive of one coat of red oxide and one coat of aluminium paint and Including taking down existing rusted/worn out MS cross arm, angle, clamps, nuts, bolts and washers complete all as specified and directed. .

Supply and fixing Pin type insulator porcelain vitreous white, brown or green including one galvanised mild steel spindle, two galvanised washers and one galvanised iron nuts 150 mm dia for 11000 volts grade and Incl taking down existing cracked/unserviceable Pin type insulatorcomplete all as specified and directed.

Supply and fixing Disc type insulator porcelain vitreous 145 mm high and 255 mm dia ball and socket type (white, brown or green) complete single disc assembly for tension with tension clamps suitable for ACSR conductor working pressure 11 KV grade and Incl taking down existing cracked/unserviceable Disc type insulator complete all as specified and directed.

Material & Labour for Stay assembly Diameter of stay rod in 20 mm incl stay insulator or egg insulator complete with all accessories as shown in electrical plate No. 1 and Incl dismantling existing stay assembly complete all as specified and directed.

Supply, fixing and stretching new ACSR conductors of any size and type for over head HT poles including binding at site to insulator with suitable size of binding wire etc and taking down existing worn out/old/broken ACSR conductors of any size and length at any position from HT poles complete all as specified and directed.

Material & Labour for Danger notice plate of 1.6 mm thick mild steel sheet, vitreous enamelled white, with letters, figures and conventional skull and bones in signal red colour and fixed with M.S. clamps, bolts and nuts of approved size, for HT, 25x20cm size and incl taking down unsv Danger notice plate of any size complete all as specified and directed.

Supply and fixing of new Air break gang operated switch triple pole mechanically operated out door with all fitting/ accessories mounted on and including 11 KV porcelain insulator and steel channel frame GI operating rod 25 mm dia of suitable length with operating mechanism worked from ground level vertically or horizontal operated as per site requirement including locking arrangement for operating handle complete suitable for current rating 200 Amps 11 KV working pressure with Insulators and Taking down existing old unserviceable Switch air break gang operated switch complete all as specified and directed by Engr in charge.

Supply and fixing of new Air break gang operated switch triple pole mechanically operated out door with all fitting/ accessories mounted on and including 11 KV porcelain insulator and steel channel frame GI operating rod 25 mm dia of suitable length with operating mechanism worked from ground level vertically or horizontal operated as per site requirement including locking arrangement for operating handle complete suitable for current rating 400 Amps 11 KV working pressure with Insulators and Taking down existing old unserviceable Switch air break gang operated switch complete all as specified and directed by Engr in charge.

Supply and fixing of new lightening arrester of expulsion type 65 KA complete with all fitting 11000 volts grade with bolts, nuts and washers and incl Taking down existing old unserviceable lightening arrester complete all as specified and directed by Engr in charge.

Supply and fixing of new lightening arrester of expulsion type 65 KA complete with all fitting 33000 volts grade with bolts, nuts and washers and incl Taking down existing old unserviceable lightening arrester complete all as specified and directed.

Supply, laying, testing and commissioning of cable end termination joint out door heat shrinkable type suitable for stranded aluminium conductor 3 core, 11 KV XLPE 95 Sq mm cross sectional area and Incl taking dowm brusted/unsv cable jointing kit for HT joint of any type and size complete all as specified and directed by Engr in charge.

Description all as per Srl item No 13 here in before above but of size 120 Sq mm 3 core to 185 Sq mm. 3 core

Description all as per Srl item No 13 here in before above but of size 240 Sq mm 3 core

Supply, laying, testing and commissioning of Cable jointing kit for 11 KV (Earthed) grade cable for straight through heat shrink type joint complete with jointing material and accessories suitable for 3 core XLPE armoured aluminium conductor cable of size 95 sqmm and Incl Taking down brusted/unsv cable jointing kit for HT joint of any type and size complete all as specified and directed by Engr in charge.

Description all as per Srl item No 16 here in before above but of size 120 Sq mm 3 core to 185 Sq mm. 3 core

Description all as per Srl item No 16 here in before above but of size 240 Sq mm. 3 core

Supply & Laying XLPE insulated, screened, PVC bedded, galvanised steel strip or wire armoured, electric power cables (heavyduty) with aluminium conductor, 11000 volts, grade cross sectional area 95 Sq. mm 3 Core and Incl taking down old/brusted unsv 11 KV Cable of any size and make complete all as specified and directed by Engr in charge.

Supply & Laying XLPE insulated, screened, PVC bedded, galvanised steel strip or wire armoured, electric power cables (heavyduty) with aluminium conductor, 11000 volts, grade cross sectional area 150 Sq. mm 3 Core and Incl taking down old/brusted unsv 11 KV Cable of any size and make complete all as specified and directed by Engr in charge.

Supply & Laying XLPE insulated, screened, PVC bedded, galvanised steel strip or wire armoured, electric power cables (heavyduty) with aluminium conductor, 11000 volts, grade cross sectional area 240 Sq. mm 3 Core and Incl taking down old/brusted unsv 11 KV Cable of any size and make complete all as specified and directed by Engr in charge.

Excavation in trenches for laying under ground cable, errection of poles and stays in any type of 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.

Description all as per Srl item No 22 here in before but exceeding 1.5 m depth and not exceeding 3.00 m in depth.

Material & Labour for Sand cushioning to under ground cable in trenches/existing cable trenches/ducts in layers of 8 cm deep before laying the cable and 15 cm deep after laying and stretching the cable complete all as specified by Engr in charge.

Supplying and laying un-reinforced precast concrete cable cover, class HV,type 1, flat, size 300mm x 180mm x 40mm complete all as specified and directed by Engr in charge.

Returning, filling in including spreading, levelling, watering and well ramming in layers soft/loose soil not exceeding 25 cm thick complete all as specified and directed by Engr in charge.

Removing surplus excavated material to a distance not exceeding 5 0 and depositing at a level n.exc 1.5 m meter above the starting point complete all as specified and directed by Engr in charge.

Supply & laying (in replacement) 100mm dia galvanized steel tubing "light grade" with GI fittings in trenches/ under roads/ along pole/ wall for cable protection all as specified & directed by Engineer in Charge.

Supply & laying (in replacement) 80mm dia galvanized steel tubing "light grade" with GI fittings in trenches/ under roads/ along pole/ wall for cable protection all as specified & directed by Engineer in Charge.

Material & Labour for Cement Concrete 1:2:4 type B1 (20mm graded stone aggregate) in Copping of Electric Poles, etc., weathering slightly rounded or chamfered angle and throating, finishing all Exposed Faces of Concrete including necessary Formwork, complete all as specified and as directed.

Material and labour for providing cement concrete 1:3:6 type C-1 (using 20 mm graded crushed stone aggregate) for coping of poles including necessary form work and finished the surface complete all as specified and directed by Engr in charge.

Material and labour for providing cement concrete 1:4:8 type D-2 (using 40 mm graded crushed stone aggregate) as in foundation filling complete all as specified and directed by Engr in charge.

Material & Labour for Dehydration and filteration of existing transformer oil at different location with filtration machine and heating system to get di-electric strength of oil 40 kV minimum without distrubing the power supply system and topping up/ replacement of unserviceable transformer oil complete all as specified and as directed by Engr in charge. (Note- a) Transformer oil samples with labeling before and after dehydration and Transformer oil Test report of the same should be produced by contractor without any extra cost. b) Transformer oil for filling/topping up and silica gel shall be measured and paid separately under relevant items of this schedule as supply only).

Supply only new transformer oil of dielectric strength not be less than 60kV and conforming to IS-335 of 1993 for filling / topping up oil of transformer up to disired level complete all as directed by Engr in charge.

Taking proper shut down in writing/disconnecting up the LT and HT electric mains from transformer of capacity 100 KVA to 250 KVA removing the transformer from pole structure/plate form shifting to authorised workshop after draining out the transformer oil at site, dismantling and disconnecting damaged HT/LT coils to facilitate necessary repairs, rewinding/ reconditioning re-assembling the transformer bringing back to the site, refilling new or dehydrated old oil connecting with existing electrical system of HT and LT including testing completed all as directed by Engr-in-Charge Note :-(a) The Rate include of winding wire, insulating material, nut & bolts and new Gasket set, lifting& placing of transformer, carrying to workshop and back etc. (b) Placing /removing standby transformer in the place of defective transformer under repair will be the responsibility of the contractor. (Standby transformer will be provided by the deptt )

Taking proper shut down in writing/disconnecting up the LT and HT electric mains from transformer of capacity 315 KVA to 500 KVA removing the transformer from pole structure/plate form shifting to authorised workshop after draining out the transformer oil at site, dismantling and disconnecting damaged HT/LT coils to facilitate necessary repairs, rewinding/ reconditioning re-assembling the transformer bringing back to the site, refilling new or dehydrated old oil connecting with existing electrical system of HT and LT including testing completed all as directed by Engr-in-Charge Note :-(a) The Rate include of winding wire, insulating material, nut & bolts and new Gasket set, lifting& placing of transformer, carrying to workshop and back etc. (b) Placing /removing standby transformer in the place of defective transformer under repair will be the responsibility of the contractor. (Standby transformer will be provided by the deptt )

S&F in repair tap changer assembly complete for transformer rating 100 to 630 KVA , including connecting up with HT coil and testing for varying voltage complete all as specified and directed by Engr in charge.

S&F in repair breather assembly complete with silica gel suitable for any model of transformer rating 100 to 630 KVA to air column of conservator tank complete all as specified and directed by Engr in charge.

Material & Labour for blue colour Silicagel of good quaility

Material & Labour for HT bush suitable for any model/capacity of transormer Indoor/outdoor rating upto 500 KVA all as specified.

Material & Labour for LT bush suitable for any model/capacities of transformer Indoor/Outdoor rating upto 500 KVA all as specified.

Taking proper shut down in writing/disconnecting up the LT and HT electric mains from transformer of capacity upto 250 KVA removing the lid/cover for inspection at site and to facilitate minor repairs after draining out the transformer oil reassembling the transformer refilling the transformer oil (new or old) installing commissioning and testing at site complete all as directed by Engr-in-Charge ( All the parts required to be replaced shall be measured and paid seperately )

Description all as per srl item No 42 above but for transformer of capacity 315 to 500 KVA.

Material & Labour for spray painting of transformers of capacity 100 to 500 KVA (in situ) outdoor type, installed and located at difference sites (scattered area under the juridiction of GE 872 EWS including the following:- (a) Prepration of old surfaces by cleaning, scrapping, rubbing/ polishing etc. complete (b) Spray painting with two coats of synthetic enamel paint of approved make/ quality all as directed at site. (c) Writing the SM/MES No of transformer on MS body of transformer all as directed.

Material & Labour for preparing and painting on steel tubular swaged pole 11 metre long ) including cross arms, GI brackets with two coats of aluminium paint over a coat of aluminium red oxide primer on exposed portion and including making strips of width 30 cm upto 1.5 m from the ground level in black and yellow shade in alternate layer including numbering of poles using two coats of synthetic enamel paint over a coat of red oxide zinc chrome primer complete as specified and as directed.

Description all as per Srl item No 45 here in before but two pole Structure complete

Description all as per Srl item No 45 here in before but four pole Structure complete

M & L for synthetic Insulating Mat of size 2.00m x l.00m x 2.5 mm Voltage upto 11 kv incl taking down unsv mat of any type and size complete all as directed.

M & L for synthetic Insulating Mat of size 2.00m x l.00m x 3 mm Voltage upto 33 kv incl taking down unsv mat of any type and size complete all as directed.

Material & Labour for 4 mm dia galvanised iron or steel wire as Earth continuity conductor or main earthing lead fixed to wall on batten or recess or chases or buried in ground or drawn in conduit/pipe or fixed to poles or any other indicated situation for loop earthing etc. as required

Description all as per Srl item No 50 here in before but 32 x 6 mm galvanised iron strip

Description all as per Srl item No 50 here in before but 20 x 3 mm Copper strip

Re - stretching only existing ACSR of any size on HT pole including binding the ACSR with insulators, aluminium binding wire complete all as specified and as directed. Note : (i) One length shall be measured for complete span of 3 conductors & GI wire.

Material & Labour for Trimming of tree branches Clearing of HT line 4 mtr all around by cutting tree branches at ground level of any numbers and any girth on any numbers of conductors/earth wire complete all as specified and directed by Engr in charge.

Material & Labour for Surface excavation n.exc (not exceeding) 30 cm deep and averaging 15cm deep and getting out

Material & Labour for Hardcore of gauge n exc. 63 mm, deposited, spread and levelled in layers n exc. 15 cm thick, watered and rammed to a true surface

Material & Labour for Detection of pin point fault in HT cable (buried in ground/under road/path upto depth of 2.0 m) by cable fault locating machine carrying impulse generator (Laptop based) complete all as specified and as directed. Note :- (a) Cable fault locating machine to be arranged at site of Likabali Mil stn. (b) Cost of transportation of machine is deemed to be included in unit rate.

Material & Labour for fixing HT 11 KV UG cable route indicator with consisting cast iron dial, angle iron strip, PCC foundation etc. where directed / in replacement of existing one Complete all as specified and as directed.

Supply and fixing and testing of temperature guage suitable for 100 KVA to 500 KVA transformer outdoor type with GI nipple etc including Taking down existing old unserviceable gauge complete all as specified and directed.

Supply and fixing Arc horn rods made of aluminium suitable for any model of transformer rating 100 to 500 KVA including Taking down existing old unserviceable Arc horn rod complete all as specified and directed.

M & L for disconnecting and draw out HT VCB VCB 11 KV ,800 A for Overhauling of make Cromptin Greaves, including replacement of Auxilary switch,cleaning/checking nuts,bolts/make break operation both mechanically and electricaly including greasing of all moving/ fixed contact checking contact resistance, Internal control wiring complete all as specified and directed.

Supply and fixing Digital Ammeter single phase, single line LED, programmable, 0.5 acc class, 230 VAC aux voltage, 96 x 96 mm case size, suitable for fixing with existing 11 KV VCB, 800 Amp including Taking down/out Unserviceable Ammeter complete all as specified and directed.

Supply and fixing Digital Volt meter single phase, single line LED, 11000/110 V VTR, 230 V VAC, 0.5 acc class, 96 x96 mm case size suitable for fixing with existing 11 KV VCB including Taking down/out Unserviceable Volt meter complete all as specified and directed.

Supply and fixing Master trip Relay, 04 Nos + 1 NC HR type, 110 V DC aux voltage, flush type mounted, 92 x 92 sqmm cut-out fixing with suitable for fixing with existing 11 KV VCB including Taking down/out Unserviceable Master Trip relay complete all as specified and directed.

Supply and fixing Numeric type IDMTL relay 030/C + E/F IDMTL + HS numerical relay, communication of MODBUS PROTOCOL WITH RS485 PORT, 51/50/51 N/50 N functions, 04 Nos (HR/SR Programmable) relay contacts, 110 V DC (75-250 VDC) auxiliary voltage, 158 x110 sqmm cutout (W x H mm) and overall dimensions of 175 x 128 x 130 sqmm suitable for fixing with existing 11 KV VCB, 800 Amp including Taking down/out Unserviceable Numeric type IDMTL relay complete all as specified and directed.

Supply and fixing 11 KV Epoxy casted current Transformer with CTR-200-100/5+5A, STR-25 kA/3sec, burden acc class core 1 - 10 VA/CL 1.0, burden acc class core 2 - 15 VA/CL 5P 10, CT sec - on P1 or P2 side, BIL - 28/75 KV suitable for fixing with existing 11 KV VCB, 800 Amp including Taking down/out Unserviceable current transformer complete all as specified and directed.

Supply and fixing 11 KV, 3 phase, 3 line voltage Transformer with 3L draw out type, epoxy resin cast type VT, 11000/110 V VTR, 50 VA/ CL 1 burden/ acc class core, voltage factor - 1.2 continuous, 1.5 for 30 sec, BIL-28/75 KV suitable for fixing with existing 11 KV VCB, 800 Amp including Taking down/out Unserviceable Voltage transformer complete all as specified and directed.

Supply and fixing Battery bank power pack having having 230 V AC to 110 V DC suitable for fixing with existing 11 KV VCB, 800 Amp including Taking down/out Unserviceable battery bank complete all as specified and directed.

Supply and fixing Shunt Coil of 110 V,DC suitable for fixing with existing 11 KV VCB, 800 Amp including Taking down/out Unserviceable shunt coil complete all as specified and directed.

Supply and fixing of LED Indication lamp of VCB for stop, spring charged and trip signals suitable for fixing with existing 11 KV VCB, 800 Amp including Taking down/out Unserviceable LED lamp complete all as specified and directed.

Material & Labour for Earthing with Galvanised Earth Plate Electrode 600x600x6.0mm thick, buried directly in Ground vertically to a depth not less than 2.25 Metre below Ground Level with Top Edge of Earth Plate at depth not less than 1.50 Metre below normal Ground Level, connected to Galvanised Earth Lead Wire 4.0mm dia by means of Bolts, Nuts, Check, Nuts and Washers of Galvanised Iron or Steel and Earth Wire protected with and including GI Pipe 15mm bore (dia) Light grade, connected to Test Point upto 7.50 Metre away from Earth Electrode situated, Earth Plate surrounded by a packed thickness of Char Coal or Coke Dust mixed with Common Salt in alternate layers of not exc.150mm thick, PCC Pit in Cement Concrete 1:3:6 (20mm graded stone aggregate) and Pre-cast RCC Cover Slab of size 350x350x50mm in Cement Concrete 1:2:4 (20mm graded stone aggregate), reinforced with 10mm dia TMT Bars @ 100mm Centre to Centre in both ways including lifting handle, GI Wire Mesh, PGI Funnel with GI Watering Pipe 20mm bore (dia) Medium grade including necessary Excavation in Soft/ Loose Soil, Returning, Filling in and Removal of surplus Spoil upto a distance of 50.00 Metre and all as shown in Electrical Plate No. 3 of MES Schedule Part-I and Testing on Completion including Taking down/out Unserviceable Earthing of any description, complete all as per specified and as directed.

Material & Labour for Earthing with Galvanised Earth Plate Electrode 600x600x6.0mm thick burried directly in Ground (Earth Pit not less than 2.25 Metre below Ground Level) with Top edge of the Plate not less than 1.50 Metre below Ground Level, connected with and including Galvanised Earth Strip of size 32x6.0mm by means of Bolts, Nuts, Check nuts and Washers of GI or Steel and connected Earthing Testing Point/Bus-bar with GI 40mm bore (dia) Light grade Protection Pipe, Earth Plate surrounded by a packed thickness of Char Coal or Coke Dust mixed with Common Salt in alternate layers of not exc. 150mm thick, PCC Pit in Cement Concrete 1:3:6 (20mm graded stone aggregate) and Pre-cast RCC Cover Slab of size 350x350x50mm in Cement Concrete 1:2:4 (20mm graded stone aggregate), reinforced with 10mm dia TMT Bars @ 100mm Centre to Centre in both ways including lifting handle, GI Wire Mesh, PGI Funnel with GI Watering Pipe 20mm bore (dia) Medium grade including necessary Excavation in Soft/Loose Soil, Returning, Filling in and Removal of surplus Spoil upto a distance of 50.00 Metre and all as shown in Electrical Plate No. 3 of MES Schedule Part-I and Testing on Completion including Taking down/out Unserviceable Earthing of any description, complete all as per specified and as directed.

Material & Labour for Earthing with Copper Earth Plate Electrode 600x600x3.15mm thick burried directly in Ground (Earth Pit not less than 2.25 Metre below Ground Level) with Top edge of the Plate not less than 1.50 Metre below Ground Level, connected with and including Copper Earth Strip of size 20x3.0mm by means of Bolts, Nuts, Check nuts and Washers of GI or Steel and connected Earthing Testing Point/Bus-bar with GI 40mm bore (dia) Light grade Protection Pipe, Earth Plate surrounded by a packed thickness of Char Coal or Coke Dust mixed with Common Salt in alternate layers of not exc. 150mm thick, PCC Pit in Cement Concrete 1:3:6 (20mm graded stone aggregate) and Pre-cast RCC Cover Slab of size 350x350x50mm in Cement Concrete 1:2:4 (20mm graded stone aggregate), reinforced with 10mm dia TMT Bars @ 100mm Centre to Centre in both ways including lifting handle, GI Wire Mesh, PGI Funnel with GI Watering Pipe 20mm bore (dia) Medium grade including necessary Excavation in Soft/Loose Soil, Returning, Filling in and Removal of surplus Spoil upto a distance of 50.00 Metre and all as shown in Electrical Plate No. 3 of MES Schedule Part-I and Testing on Completion including Taking down/out Unserviceable Earthing of any description, complete all as per specified and as directed.

M/S R D CONSTRUCTION (BID ID -3441485)

STANDARD ELECTRIC WINDERS (BID ID -3441567)

M/s PRABIR ENTERPRISE (BID ID -3441388)