Tender For corrigendum : rate contract for purchase of various items for repair of failed distribution transformers at nigams workshop - alu lv strip (size as required) dpc(variable with base date 1.6.25), alu hv bare (size as required) semc(variable with base date 1.6.25), cotton tape 1, sleeve 1 mm, 20 mil paper 30, 4 mil paper 24, 4 mil paper 26, 4 mil paper32, 4 mil paper 30, gum, 10 mil paper 20, core clamping insulation 2 mm, yoke various sizes mm, common block various sizes mm, oil duct various sizes mm thickness, stick various sizes mm, wooden spacer 45x45x15 mm, spacer 45x45x3 mm, ring 136x201x2 mm, delta flat 480x30x5 mm, lv chips 380x6x1 mm, foot plate paper 2 mm, p.c phase barrier various size mm, nut g.i.various sizes, washer g.i.various sizes, bolt g.i.various sizes, delta wire various sizes, earthing patti 1 mm thickness tinned copper 20mmx1mm, aluminium flat various sizes mm, delta patti, sleeve 8 mm, sleeve 4 mm, sleeve 6 mm, sleeve 10 mm, sleeve 12 mm, sleeve 1.5 mm, sleeve 2 mm, 1/2 nut g.i., 1/2 lock nut g.i., 1/2 washer g.i., flux, solder wire, copper brazing rod, aluminium brazing rod, brazing powder (l&t), crepe tape 1, 1/2 bakelite, 3/8 bakelite, hv bushing (porcelain,), hv bushing (metal part) complete set, lv bushing (porcelain,), lv bushing (metal part) complete set, ehv grade type-ii transformer oil ( with drum )(variable with base date 1.6.25), prv valve (virat), pvc cap 1/2, ci cap 1.25, paint (green/red/yellow/white/blue), thinner, zinc chromate, cork washer 12x32mm,110x74mmx50x28mm, top cover gasket 50x50x6 mm, oil gauge prismatic glass various size, oil gauge gasket various sizes, oil gauge washervarious sizes, oil gauge nut various sizes, vent pipe gasket 110x110x3 mm, hv clamp, aluminium member, m.s nuts,bolts,washers various sizes, mccb for box 32 amp, mccb for box 40 amp, mccb for box 63 amp, mccb for single phase 25amp, mccb for single phase 40amp, mccb for single phase 63amp, mccb box gasket 500x250x5 mm, silica gel breather, hv bmc, arcing horn with strip & nut bolt, candles mom, backalite sheet 0.50 mm thickness 60x60 mm, u clamp 70 x 50 x 70 mm prv, u clamp ci cap 50x50x50 mm, cloth, lt internal/ oil immerged circuit breaker assorted rating, holdtite, 1/4x2.5 bolt brecker, 1/4 nut brecker, aluminium lugs (various sizes), paint gun, engraving machine, hv farma (size as required), lv farma (size as required), grinder cutter wheel 4, lt bushing box
Tender For 25 kv earthing/dischargerod assembly for high rise ohe with working voltage 25 kv ac traction with top clamp (suitable for 36 to 50 mm bus bar and also suitable for 10 to 20 mm dia. conductor) . pole made of cast resin or resin-bonded glass fibre, coated with three coats of poly- urethane, the discharge /earthing pole assembly shall have an overall length of not less than 7.5 meters in five equal sections. single core flexible multi strand annealed copper cable should have double insulation, a cross section of 40 sq mm of size 248/0.45 mm and 14 meter long cable (specification is: 1554 (pt. i)- 1988 and is 2071 (pt. 1 and iii). with earthing double clamp drg. no. eti/ohe/sk/482 or latest (each dischargerod is to be supplied with 02 nos. earting clamps), insulated tee junction- insulated tee junction drg no. eti/ohe/sk/481 and re/33/p/530 or latest (the cable should have an insulated tee junction and the tee clamp should be of brass covered in clamp casing of ebonite material). and whole assembly to be supplied in rugged canvas bag and all shall be as per rdso specification no. eti/ohe/51 (9/87) with latest a and c slip no. 1 (10/92) or latest , and additional part required with each dischargerod to be supply. (1) 01 nos. insulated tee junction. (2) 01 nos. top clamp made of copper suitable for 36 to 50 mm bus bar and also suitable 10 -20 mm dia conductor, (3) 01 nos. spare earthing clamp and. (4) special instruction- 1. dischargerod cable lugs should be made of copper. 2. the cable should have double insulation, a cross- section of 40 sq mm, and 248/0.45 mm strands. 3. the dischargerod should be strong enough to prevent swaying or breaking during maximum extension. every nut and bolt used in the dischargerod must include a washer and spring washer to ensure secure fastening. 5. after the award of the p.o., the firm must ensure approval of one sample of the dischargerod from the consignee before rites inspection. 6. the length of cable from the earthing clamp to top clamp shall not be less than 12.5 mtr. in the cable an insulated tee junction shall be provided at a distance of about 3.5 mtr from the earthing clamp. from this insulated tee junction another piece of cable not less than 1.50 m long shall be provided at the end of which other earthing clamp shall be provided. 7. the galvanized steel tube (threaded) used for coupling of pieces of dischargerod should be at least 20 cm or more as required to prevent swaying of pole assembly during erection at site. also at every 5 cm apart two nos steel rivet is required to be provide on galvanized steel tube ( for preventing the galvanized steel tube from coming out from each dischargerod pole end). i.e. about 08 nos. or more steel rivet as required per galvanized steel tube is to be provided for proper fastening of galvanized steel tube inside the each pole of dischargerod. (warranty period- 30 months after the date of delivery). [ warranty period: 30 months after the date of delivery ]
Tender For supply of 25 kv earthing/dischargerod assembly for high rise ohe with working voltage 25 kv ac traction in 4 equal sections (overall length should not be less than 6.7 meter) of fibre glass stick with isi marked single core flexible multistrand annealed copper cable of size 248/0.45mm and 13 meter (11.5+1.5) mtr long, each dischargerod supplied with 02 nos. gi rail clamps & top clamp (brass) suitable for 10-20 mm dia. conductor and whole assembly to be supplied in canvas bag and all shall be as per rdso spec. no. eti/ohe/51 (9/87) with latest a&c slip no. 1 (10/92). make- pec, im or sdee [ warranty period: 30months after the date of delivery ]