Tender in advance for repair and restoration of 33KV HT line 11KV HT line and LT line for upcoming monsoon season for FY 2026-27 in E Section Larankello under ESD HPSEBL Naggar

Repair & Restoration 33KV feeder Fozal to Larankelo HT Line (E) Section Larankelo

Poles, HT cable, CABLE ACCESSIORIES, KITS & Conductor:-

Insulators:-

Supply of 11 KV Disc insulator B&S type ( 1 set comprising of 3 nos. disc) 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. Heavily polluted Creepage distance-400mm

Supply of 33 kV Pin Insulator ( Porcelain, 36 kV, 10 KN) Brown Glazed Porcelain insulator alongwith GI Pin confirming to IS-731/1971 or latest version thereof with minimum and maximum creepage distance 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- 840mm

Stay Sets:-

Supply of Stay Set Suitable for 33KV HT line made of M.S. Round 2000mm in length, 20mm dia having threads up to 400mm on one end with one nut and one check nut to avoid slippage and eye of 50mm dia on other side and welded confirming to REC specification. Elbow made of MS channel iron 100x50x6mm, 300mm long and M.S. Round 20mm dia, vertical height 450mm, both ends bend after putting in two holes in channel iron taking the ends out 30mm minimum in length and welded with channel iron. One anchor of Angle Iron 65x65x6mm, 750mm in length with one hole of 20mm dia in the centre. The complete stay set shall be painted with superior quality black Japan paint.

Stay Wire:-

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