Tender for Repair and Restoration of 11KV HT line of 250KVA, 11/0.4KV DTR LWSS Kashwai 1st and LT line washed away due to heavy rainfall/ flash flood on 08-07-2023 to 10/07/2023 in (E) Section Sha.

HT Line (Supply Part):-

Supply of 10.00 Mtr. Long ISI marked swaged steel tubular pole as per IS: 2713/1980 (Part-'A') as amended from time to time, along with Cap Welded on top & Cast iron Base plate of designation 410SP-47

Supply of RCC pipe (Muff) ISI marked suitable for different sizes of steel poles. 2000 mm in length and 25 mm thick with 250 mm internal dia duly fabricated by using un-galvanized MS wires of 12 SWG rings and 6 mm MS round in vertical direction conforming to ISI 458-1988 or latest version if any

Supply of ACSR conductor of size 6/1/3.35 mm

Supply of 11 KV Disc insulator B&S type conformimg to IS-731/1971 all latest version thereof for suspension & tension string ball and socket type having pin ball. The minumum and maximum creepage distance with diameter of insulator- 225 mm & having electromechanical strength 90KN. The insulator shall have W type phosphors bronze security clips for ball socket porcelain conforming IS: 2486-1971 (90KN) complete in all respect. Moderately polluted atmospheres Creepage distance 320mm

Supply of 11 kV Pin Insulator Brown Glazed Porcelain insulator alongwith GI Pin confirming to IS-731/1971 or latest version thereof with minimum and maximum creepage distance & duly fitted with lead/zinc thimble suitable for use with GI forged pin having small steel head as per IS:2486 (Part-I & II) of 1993 & latest amendment if any. Moderately polluted atmospheres Creepage distance- 320mm

Supply of MS Channel 100x50x6 mm Cross Arm: Fabrication and supply of Cross arms suitable for 11 KV made of only TATA/SAIL/RASHTRIYA ISPAT M.S. Channel Iron 100x50x6 mm Cross Arm, suitable for fixing on both Steel and PCC Poles whatever is required single/double pole structure of 11KV line with holes at suitable places wherever required to adjust 5/8” dia nuts and bolts, pin insulators, ball cleaves, eye socket and washers. The weight of MS channel should be strictly 9.56 Kg per meter with a variation of +/-5%. The Cross Arm should be duly painted with two coat red oxide paint of superior quality:

2340 mm long

1270 mm long

Supply of C.I Arm (2340x75x40x6) mm

Supply of C.I Arm (2800x75x40x6) mm for GO switch & DO fuse

Supply of HT Stay Set complete including, Guy Assembly, Helically fitting & stay wire @ 10.00 kg per stay set (Supply of Galvanized Stay Strand conforming to ISS-2141/1992 Edition 2002-05 (with upto date amendments) with heavy coating Zinc hot Dip Galvanized as per ISS-4826/1979 (2001-06) (latest)of following grade and size:- Grade -4 Size 7/3.15mm (7/10SWG) )

Supply of Knee bracing set 2(750x50x50x6) mm

Supply of Cross bracing set for DP 2(2125x50x50x6) mm

Supply of Belt set for DP 2(1800x50x50x6) mm

Supply of Earthing set suitable for HT line/Earthing of metering unit made of GI pipe 40 mm dia (internal dia) wall thickness 3.25 mm medium quality pipe of standard make conforming to IS: specifications 2500 mm long with GI Socket closed at top pipe shall have holes of 12 mm dia every 150 mm apart throughout the length and staggered diameterically. Full clamps of MS Flat 40x3 mm fitted at top end of the pipe along with bolts and nuts size 50x12 mm and washers for fixing the clamp on the pipe. The bottom end of the pipe shall be tapered cut at 45 degree.

Supply of eye hook for earth wire

Supply of Galvanised Mild Steel wire conforming to ISS-280/1978/2006 (with up to date amendments ) for general engineering purpose, having fine finish, hot dip galvanised, with heavy coating of Zinc as per ISS-4826/1979 (2001-06)(latest) in soft condition and of size 4.06 mm (8 SWG).

Supply of G.O. Switch Unit (11KV, 400A, 25kA) a/w GO switch

Supply of D. O. Fuse Unit

Supply of Danger Plate Size: 250x200x1.6 mm made of mild steel plates 1.6 (minimum) thick vitreous enameled white letter figure, conventional skill and X-Boxes and signal red colour on front side for use in HPSEBL. The rear side of the plate shall be black enameled and conforming to IS specifiction no. IS-1351/1982 suitable for 11KV

Supply of M.S. Hexagon Bolts and Nuts with washers conforming to ISI-1363-1992 off size

Supply of Galvanised steel barbed wire of 9.8 kg /100metre

Supply of Top Clamp

Supply of Half Clamp (MS Flat 50x6mm)

Supply of Full Clamp (MS Flat 50x6mm)

Supply of Red Oxide

Supply of Aluminium Paint for all poles and steel fitting

11KV HT Line (Erection Part):-

Erection of steel tubular pole (Single pole str) digging of pit, Drilling of holes in X-arm, Erection of pole, Fixing of insulator X-arm, Fixing of barbed wire danger plate , Concreting of RCC Muff, Filling of pit+ramming, painting of pole and all steel items (Punching of the poles is stricitly not allowed)

Erection of steel tubular pole (double pole str) digging of pit, Drilling of holes in X-arm, Erection of pole, Fixing of insulator X-arm, Fixing of barbed wire danger plate , Concreting of RCC Muff, Filling of pit+ramming, painting of pole and all steel items (Punching of the poles is stricitly not allowed)

Erection of steel tubular pole (Tripple pole str) digging of pit, Drilling of holes in X-arm, Erection of pole, Fixing of insulator X-arm, Fixing of barbed wire danger plate , Concreting of RCC Muff, Filling of pit+ramming, painting of pole and all steel items (Punching of the poles is stricitly not allowed)

Erection of steel tubular pole (Four pole str) digging of pit, Drilling of holes in X-arm, Erection of pole, Fixing of insulator X-arm, Fixing of barbed wire danger plate , Concreting of RCC Muff, Filling of pit+ramming, painting of pole and all steel items (Punching of the poles is stricitly not allowed)

Erection of ACSR Conductor of size 6/1/3.35 mm (Laying, Stringing, sagging & Binding with Insulator)

Erection of GI wire

Erection of Earthing set (Digging of pit, fixing of GI wire to the earth system & filling of pit)

Erection of Stay Set HT (Digging of pit, fixing of stay rod, filling of pit , nozzeling & tighting)

Erection of G.O. Switch

Erection of D.O. fuse Unit

LT (Supply Part):-

Supply of 9.00 Mtr. Long ISI marked swaged steel tubular pole as per IS: 2713/1980 (Part-'A') as amended from time to time, along with Cap Welded on top & Cast iron Base plate of designation 410SP-47

Supply of RCC pipe (Muff) ISI marked suitable for different sizes of steel poles. 2000 mm in length and 25 mm thick with 250 mm internal dia duly fabricated by using un-galvanized MS wires of 12 SWG rings and 6 mm MS round in vertical direction conforming to ISI 458-1988 or latest version if any

Supply of ACSR conductor of size 6/1/4.72 mm

Supply of Shackle Insulator (16KN)

Supply of D Iron (U-Clamps).

Supply of Spool Tie

Supply of LT Stay Sets suitable for LT lines made up of MS round 1600mm in length, 16 mm dia having threads up to 300 mm on one end with one nut and one check nut to avoid slippage and eye of 40 mm dia on other side and welded confirming to REC specifications. Elbow made of MS channel iron 70x40x6mm,250 mm long and MS round 16mm dia, vertical height 300mm , both ends bent after putting in two holes of channel iron taking the ends out 25mm minimum and welded with channel iron. One anchor of angle iron 50x50x6 mm ,750 mm in length with one hole of 20mm dia in the center .The complete stay set shall be painted with superior quality black Japan paint.

Supply of Galvanized Stay Strand conforming to ISS-2141/1992 Edition 2002-05 (with upto date amendments) with heavy coating Zinc hot Dip Galvanized as per ISS-4826/1979 (2001-06) (latest)of following grade and size:- Grade -4 Size 7/3.15mm (7/10SWG).

Supply of Earthing set suitable for LT line made of GI pipe 25 mm dia (internal dia) wall thickness 3.25 mm, Medium quality pipe of standard make conforming to IS: specifications 2000 mm long without GI Socket closed at top. Pipe shall have holes of 12 mm dia every 150 mm apartthroughout the length and staggered diameterically. Full clamps of MS Flat 40x3 mm fitted at the top end of the pipe along with bolts nuts of size 50x12 mm and washers for fixing the clampson the pipe. The bottom end of the pipe shall be tapered cut at 45 degree.

Supply of Earth Knob/Hook

Supply of Galvanised Mild Steel wire conforming to ISS-280/1978/2006 (with up to date amendments ) for general engineering purpose, having fine finish, hot dip galvanised, with heavy coating of Zinc as per ISS-4826/1979 (2001-06)(latest) in soft condition and of size 4.06 mm (8 SWG).

Supply of M.S. Hexagon Bolts and Nuts with washers conforming to ISI-1363-1992 off size

Supply of Red Oxide

Supply of Aluminium Paint for all poles and steel fitting

Erection Part:-

Erection of steel tubular pole complete viz digging of pit, Erection of pole, Fixing of insulator, Concreting of RCC Muff, Filling of pit+ramming, painting of pole and all steel items (Punching of the poles is stricitly not allowed)

Laying, stringing , sagging & binding with Insulator of ACSR 6/1/4.72 mm

Erection of Stay Set LT (Digging of pit, fixing of stay rod, filling of pit , nozzeling & tighting)

Erection of GI wire

Erection of Earthing set (Digging of pit, fixing of GI wire to the earth system & filling of pit)

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