WBPWD/EE/BED/25/e-IT of 2020_21

Amount

HT cabling work:- Supply & Delivery of 11 KV grade 3 core 240 sq.mm. XLPE(E) HT cable with Al. conductor (Make - Polycab/ Glostar / KEI) confirming to IS:7098/(Part-II) 1985.

Laying only above HT cable from supply Co's gear to consumer's gear and consumer gear to transformer to be laid partly in masonary trench and mainly on cable tray as to G.S.

Jointing of H.T. cable of 11 KV grade 3 core 240 sq.mm. XLPE (E) cable incl.supply of necy. jointing materials & compound (Heat shrink cable jointing kit of approved make) for switch gear & transformer terminations on H.T. sides incl. testing as per G.S.

Supply & fixing earth busbar of galvanized (Hot dip) MS flat 65 mm x 8 mm on wall having clearence of 6 mm from wall incl. providing drilled holes on the busbar complete with GI bolts, nuts, washers, spacing insulators etc. as required.

Connecting the equipment body to earth busbar incl. S & F 50 mm x 6 mm galvanized (Hotdip) M.S. flat on Wall/floor woth G.I. saddle as required and making connection to equipments with incl. drilling holes, nuts, bolts & washers as per G.S.

Supply & Installation of Test Link for earthing system using porcelain insulator fixed on wall with 65X8mm GI flat (300mm long).

S& laying 240 sq. mm. single core multistrand PVC insulated flexible Cu cable (FRISH) from neutral earth busbar to transformer's brought out neutral point as required (from neutral earthing buses to brought out neutral point of transformer in CSS) in suitable dimension PVC flexible pipe as per direction of EIC. (Make :- Polycab/thavells/Gloster/KEI)

S& laying 120 sq. mm. single core multistrand PVC insulated flexible Al cable from neutral earth busbar to transformer's brought out neutral point as required (from neutral earthing buses to brought out neutral point of transformer in CSS) in suitable dimension PVC flexible pipe as per direction of EIC. (Make :- Polycab/thavells/Gloster/KEI)

Finishing the end of following XLPE/PVC armoured cables by crimping method incl. supplying and fixing solderless socket(Dowels make), tapes, anticorrosive paste & jointing materials-for 120 sq mm cable

Different Test (Insulation, High Pressure, Earthing etc) of total system comprising of different substation equipments (viz HT & LT Cables, Transformers , HT Switchgears etc) including callibration & setting of all protective relays at site and Finally charging, testing & commissioning the entire system after obtaining approval from the Directorate of Electricity.

LT cabling work : Dismantling existing cable and redressing the same cable as per suitable manner with tools & tackles

Supply & delivery of 1.1KV grade 4 core 400 sqmm XLPE/A Al. Cable as per comfirming IS:7089 (Part-I) 1988 as per latest ammendment (Make- KEI/Gloster/Polycab).

Supply & delivery of 1.1KV grade 4 core 95 sqmm XLPE/A Al. Cable as per comfirming IS:7089 (Part-I) 1988 as per latest ammendment (Make- KEI/Gloster/Polycab).

Supply & delivery of 1.1KV grade 4 core 300 sqmm XLPE/A Al. Cable as per comfirming IS:7089 (Part-I) 1988 as per latest ammendment (Make- KEI/Gloster/Polycab).

Laying of one cable up to 185 sq.mm in under ground trench with brick protection as per GS (From sub-stion LT panel to building LT panel board.

Laying of one cables above 185 sq.mm in under ground trench with brick protection as per GS (From sub-stion LT panel to building LT panel board).

Laying of one cable above 150 sq,mm & up to 300 sq,mm to be laid through masonary trench as per GS (From sub-station LT panel to building LT panel board).

Laying of cable above 300 sq.mm to be laid through masonary trench as per GS (From transformers to LT panel board).

S&F compression type cable gland complete with brass gland, rubber ring, for dust and moisture proof entry suitable for the following XLPE armoured cables. (i) 4 core 400 sq.mm.

4 core 300 sq.mm.

4 core 95 sq.mm.

Finishing the end of following XLPE/PVC armoured cables by crimping method incl. supplying and fixing solderless socket (Dowels make), tapes, anticorrosive paste & jointing materials (i) 4 core 400 sq.mm.

4 core 300 sq.mm.

4 core 95 sq.mm.

Single core 240 sqmm PVC insulated copper wire.

Labour charges for cutting of CC concrete floor after digging out the existing tiles having dimension 800mm X 800mm X 200mm(D) by expert santras for making of earth pit incl. making good the damages as required.

S&F 250V 300mm sweep 1420 RPM heavy duty AC exhaust fan complete with all accessories after cutting wall and making holes incl. S&F nuts, bolts, washers & louver shutter and providing necy. length of connecting copper wire and mending good the damages to original finish (Make- EPC).

S&F interval (30minutes interval) timer for exhaust fan (Eastronics make) as per direction of EIC.

S&drawing 1.1KV grade 4 core 2.5 sqmm stranded armoured insulated copper control cable from transformer's WTI relay to VCB WT relay for power and control supply.

S&Drawing 1.1KV grade 2 core 2.5 sqmm stranded armoured insulated copper control cable from power DB to VCB and transformer's marshalling box.

S&F of following sizes compression type cable gland complete with brass gland, rubber ring, for dust and moisture proof entry of XLPE/A Al. Cable (a) 4 core 2.5 sqmm

(b) 2 core 2.5 sqmm.

Finishing of the PVC insulated wire ends by socketting with pin/ ring type copper sockets and insulated tapes etc., including supplying sockets, tapes. (a) 2.5 sqmm.

Making necessary inter connection from transformer winding temperature relay to WBVCB WT relay and power DB to VCB incl. Making connection etc. Complete by expert HT personal.

Labour charges for cutting of CC concrete floor after digging out the existing tiles having dimension 2000mm(W) X 200mm(D) by expert santras including excavation of earth up to 1250mm depth from floor level for making of cable duct as required.

Making cable duct having inside dimension 1000mm(W) X 1000mm(D) providing 75mm thick brick soling, 100mm thick PCC, over brick soling and 250mm width brick work in all side complete with neat cemented finished plaster as required.

Supply & Fixing of perforated GI cable tray with perforation not more than 17.5% suspended from ceiling incl. S&F GI connector, 6mm dia MS suspender, bolts & nuts, steel fastener etc. as required of the following size. Incl. Al painting of MS support, With 25x25x3mm angle iron support-300x50x1.25mm (18SWG)

Supply & Fixing of perforated GI cable tray bend with perforation not more than 17.5% suspended from ceiling with two nos. suspenders & 25x25x3mm angle iron for supporting the cross member incl. S&F GI connector, 6mm dia MS suspender, bolts & nuts, steel fastener etc. as required of the following size. Incl. Al painting of MS support-300x50x1.25mm (18SWG)

Supply & Fixing of perforated GI cable tray tee with perforation not more than 17.5% suspended from ceiling with two nos. suspenders & 25x25x3mm angle iron for supporting the cross member incl. S&F GI connector, 6mm dia MS suspender, bolts & nuts, steel fastener etc. as required of the following size. Incl. Al painting of MS support-300x50x1.25mm (18SWG)

S&F MS checkered plate of 10mm thick after cutting and sizing by LPG industrial gas & gascutter and also providing arrangement of lifting the cheker plate by means of suitable sizes half round cutting hole incl. S&F necessary angle iron supports by 50x50x5mm angle, two nos for each plate on trench.

Making groove over cable trench after necessary cutting by santras having finished size 100mm X 10mm on all sides by cement concrete (4:2:1) complete with neat cemented finish plaster for MS checker plate as per direction of EIC.

Earthing : Earthing with 80 mm dia GI pipe (TATA-Medium)x 3.0 Mts.long and 1 No. 65 mm x 8 mm galvanized (Hot Dip) steel strip (4 Mts. long), 20 mm dia x 125 mm long galvanized bolt, double nuts, double washers including finishing both ends by making holes etc. and S & F 80 mm dia GI pipe (ISI-M) protection (3 Mts. long) to be filled with bitumen partly under the ground level and partly above ground level to an average depth of 3.65 Mts. [ 2 Nos for CSS body earthing and 2 Nos for neutral earthing & 2 nos for DCL earthing]

Extra for providing masonery enclosure on the top of the earth electrode of overall size 86.36 cm x 86.36 cm x 46 cm deep (below Ground level) complete with cemented brick work(1:6) of 25 cm width duly plastered with cement morter (inside) CI/MS heavy duty hinged inspection cover with lifting handle of size 36.56 cm x 35.56 cm with locking arrangement, GI reducer including drilling of 46 nos. 12 mm dia holes on the GI pipe.

Extra for treatment of soil by using salt & charcoal or coke for pipe electrode.

Supply and fixing of 80mm dia GI pipe (ISI-M) for protection of 65mm X 8mm GI strip in UG trench as required.

Safety Equipment: Providing & fixing danger plates made of mild steel at least 2mm thick & vitreous enameled white on both sides & with inscription in signal red colour on front side as required. (a) High Voltage - size 250mm x 200mm

(b) Medium Voltage - size 200mm x 150mm

Providing and fixing carbon dioxide (CO2) type fire extinguishers confirming to IS 2878 - 1976 and cylinders fully charged of following capacity(4.5 Kg ) (Five Shicld/Ceasefive)

Supply and fixing safety instruction chart in word duly framed with 5mm thick glass as required (approx. Front area 1.20 sq.mt.)

Providing of 9.5 litre capacity GI bucket painted in post office red colour with prior coat of red-oxide paint and written with white paint 'FIRE' and mounted on MS angle iron frame with bracket and suitable base of appropriate size & capacity I/c filling sand etc. (Five Shicld/Ceasefive)

Providing First Aid Box as approved by St. John Ambulance Brigade / Indian Red Cross conforming to IS 2217-1963.

Supply and fixing shock treatment chart duly mounted on a wooden frame with 5mm thick glass as reqd. (approximate front area 1.20 sq.metre).

Providing of rubber mat 2 mtrs Length x 1 m. wide and 12mm thick to withstand 12 KV dielectric strength as per IS 5424-1969.

Providing of rubber mat 2 mtrs Length x 1 m. wide and 6mm thick to with stand 3.3 KV dielectric strength as per IS: 5424-1969.

Supply and delivery hand gloves suitable for 11KV for protection purpose. (ISI approved)

Submission of a Auto-CAD sub- station drawing which should have showing HT & LT cable ducts ,single line power diagram , E.I. layout, Earthing system etc.

Charges for cutting M25 concrete area with tools, tackles, pneumatic vibrator for underground trench as per direction of EIC

L.W.C. must be quoted manually @1% on the total quoted value else the total quoted rate shall be treated incl. LWC as per rule. N.B. Rate should be quoted inclusive of GST.

OVERSEAS TRADING AND SUPPLIES CORPORATION

M/S N. C. HORE

RASH ELECTRICAL WORKS

CHAKRABORTY ENTERPRISE