Repair and Maint of HT Distribution Network and other items under GE Brichgunj, Sri Vijaya Puram

Material and Labour for Jointing repairs in replacement of straight through joint, heat shrinkable, suitable for HT, 3 core XLPE cable with aluminium conductor of size 50 to 95 Sqmm, 11 KV rating and testing after jointing complete all as specified including dismantling old cable joint of any description complete including earth work all as specified and as directed by Engr-in-Charge.

Material and Labour for Jointing repairs in replacement of cable straight through joint, heat shrinkable, suitable for HT, 3 core XLPE cable with aluminium conductor of size 120 to 185 Sqmm, 11 KV rating and testing after jointing complete all as specified including dismantling old cable joint of any description complete including earth work all as specified and as directed by Engr-in-Charge.

Material and Labour for Jointing repairs in replacement of cable end termination kit, heat shrinkable, outdoor type, suitable for HT, 3 core XLPE cable with aluminium conductor of size 50 to 95 Sqmm, 11 KV rating and testing after jointing complete all as specified including dismantling old cable joint of any description complete including earth work all as specified and as directed by Engr-in-Charge.

Material and Labour for Jointing repairs in replacement of cable end termination kit, heat shrikable, outdoor type, suitable for HT, 3 core XLPE cable with aluminium conductor of size 120 to 185 Sqmm, 11 KV rating and testing after jointing complete all as specified including dismantling old cable joint of any description complete including earth work all as specified and as directed by Engr-in-Charge.

Material and Labour for Jointing repairs in replacement of cable end termination kit, heat shrinkable, indoor type, suitable for HT, 3 core XLPE cable with aluminium conductor of size 50 to 95 Sqmm, 11 KV rating and testing after jointing complete all as specified including dismantling old cable joint of any description complete including earth work all as specified and as directed by Engr-in-Charge.

Material and Labour for Jointing repairs in replacement of straight through joint, tapex joint, suitable for HT, 3 core XLPE cable with aluminium conductor of size 95 Sqmm, 33 KV rating and testing after jointing complete all as specified including dismantling old cable joint of any description complete including earth work all as specified and as directed by Engr-in-Charge.

Material and Labour for identifying the earth pits, improving the resistance of existing earth pit by pouring salt water in earth pit to improve resistance up to 2 Ohms and measuring the earth resistance and making record complete all as specified and as directed by Engr-in-Charge.

Material and Labour repairs in replacement of Silica Gel breather capacity 250Gms made of Aluminium top and bottom, Transparent unberakable centre portion to check silica gel condition; clear view Polycarbonate oil cup- Screwable type; Air Tight, center tie rod; Connection: 1/2 or 3/4 inch thread or Flange suitable of mounting in of capacity upto 400 KVA complete all as specified and as directed by Engr-in-Charge.

Material and Labour repairs in replacement of Silica Gel breather of capacity more than 1 kg made of Aluminium top and bottom, Transparent Acrylic centre portion to check silica gel condition; clear view Polycarbonate oil cup- Screwable type; Air tight ; center steel tie rod; Connection: 1/2 or 3/4 or 1 inch thread or Flange suitable of mounting in above 400 kva to 1/ 2 MVA Transformers all as specified and as directed by Engr-in-Charge.

Material and Labour for Jointing repairs in replacement of cable end termination kit, heat shrikable, outdoor type, suitable for HT, XLPE cable with aluminium conductor of size 95 to 120 Sqmm, 33 KV rating and testing after jointing complete all as specified including dismantling old cable joint of any description complete including earth work all as specified and as directed by Engr-in-Charge.

Dismantling of Insulators HT, 11 KV pin, post, disc type and removing from its locations, making good the disturbed surfaces to match with the existing surfaces, and taken as credit all as directed and as specified

Supply and fix in replacement of porcelain/Polymer post insulator suitable for 11000 volts grade complete all as specified and as directed by Engr-in-Charge.

Supply and fix in replacement of Pin type, porcelain, vitreous, white, brown or green insulator including one galvanised mild steel spindle, two galvanised iron washers and one galvanised iron nut, 150 mm height, 150 mm dia for 11000 volts grade complete all as specified and as directed by Engr-in-Charge.

Supply and fix in replacement of 33 KV post- top insulator double stack (2x22KV Each), porcelain vitreous white or Brown or green including galvanised mild steel straps as per sample all as specified and as directed by Engr-in-Charge.

Material and Labour for loose filling of 63 mm graded stone aggregates in plinths of out door transformer, sub stns, panel boards yard complete all as specified and as directed by Engr-in-Charge.

Material and Labour for cement concrete 1:2:4, type B-1 using 20mm graded stone aggregate as in walls etc., including necessary form work and finishing to exposed concrete surfaces even and fair complete all as specified and as directed by Engr-in-Charge.

M&L Silica Gel in breathers, size should not be less than 40mm complete including removing old silica gel and removing from site all as specified and as directed by Engr-in-Charge.

Supplying, laying, Jointing, testing and commissioning in replacement of of HT UG cable, XLPE insulated, screened insulated, armoured and PVC bedded, 11 KV grade (heavy duty) suitable for earthed system with aluminium conductor of size 3 core 95 sqmm conforming to IS-7098 Part II laid in trenches, fixed to walls or passing through pipes and connecting up including taking out unserviceable cable complete all as specified and as directed by Engr-in-Charge. Note : Earth work excavation shall be measured and paid seperately under relevant item

M & L in replacement of jumpers of existing size OH conductors length up to 2.0mtrs including fixing new 11KV OH conductor/jumper complete all as specified and as directed by Engr-in-Charge. (Supply of top/bottom contact is catered in item No 20 & 21 separately)

Supply only top contact/ L contact for drop out fuse suitable for 11 KV all as as directed by the Engineer in Charge.

Supply only bottom contact for drop out fuse suitable for 11 KV complete all as specified and as directed by Engineer in Charge.

Supply and fix in replacement 33 KV DO Fuse Elements 40 Amps rating, all as specified and as directed by Eng-in-Charge.

Supply and fix in replacement 11 KV DO Fuse Elements 20 to 60 Amps rating all as directed

Material & Labour for Earthing complete with galvanised iron earth plate electrode of size 60cmx60cm× 6mm thick, buried directly in ground vertically at a depth not less than 2.25 metres deep below normal ground level with top edge of the earth plate not less'than 1.5 metres below normal ground level and surrounded from all sides by 15cm thick and packed layer of charcoal dust and common salt filling in alternate layers and electrode connections by using galvanised iron strip of size 32X6 mm by means of bolts, nuts, check nuts and washers made up of galvanised iron or steel and protected by light grade 40mm dia galvanised iron pipe connected to main switch board or main control board and GI pipe light grade 20mm bore for watering including funnel, wire mesh, RCC pit cover and PCC chamber pit with PCC 1:2:4 type B-2 (including necessary excavation and earth work, disposal of surplus soil to a distance not exceeding 50 mtr all as specified and as shown in electrical plate No. 3 connected to test point terminal all as specified or indicated including taking down old earthing & testing new earthing on completion all as directed.Note:-(a) The unit rate shall include for protection pipe, GI water pipe, wire mesh, funnel, excavation, RCC pit cover, PCC chamber pit, test point terminal block, 32X6 mm dia GI strip from top of earth plate upto 5 mtr above ground level and if GI protection pipe is less than 5 meters, no price adjustment shall be made.

Material and Labour for earthing complete with Copper earth plate electrode 60 x 60 cm x 3 mm thick buried directly in ground ( earth pit not less than 2.25 M deep below ground level) with top edge of the plate not less than 1.5 Meter below normal ground level connected to Copper strip of 32x6 mm as main earthing lead (upto 7.5 m length from earth electrode to test point) by means of galvanised iron or steel bolts, nuts , check nuts & GI washers and GI tubing 40 mm bore light grade for earth lead protection up to main earth test point and including concrete pit in PCC (1:3:6) type C1, pre cast RCC (1:2:4) type B1 as in cover slab 54 x 54 x 5 cm including 8mm dia MS TMT bars @ 150 mm c/c as in reinforcement with one handle for lifting made out of 8 mm dia MS bar, wire mesh, 20 mm bore GI tubing (Light Grade) for watering and funnel, charcoal or coal and salt in alternate layers including excavation earth work in any type of soil, RFR and removal of surplus soil complete all as specified and directed electrical plate No. 3 of SSR part - I complete all as specified and as directed by Engr-in-Charge.

Excavation in trenches not exceeding 1.5 m wide and not exceeding 1.5 m deep for laying of cables, pipes, foundation for poles etc., and getting out in hard/dense soil complete all as specified.

Returning, filling in, including spreading, levelling, watering and well ramming in layers not exceeding 25 cm thick complete all as specified. Note : A deduction of 10% shall be made from total computed volume of filling to cater in bulkage irrespective of machinery used for ramming.

Removing surplus soil to a distance not exceeding 50 m and depositing where directed at a level not exceeding 1.5 m above the starting point complete all as directed

Supply and lay river sand for cable cushioning in trenches or in duct complete all as specified and as directed by Engr-in-Charge.

Material and Labour for dismantling Oil filled CT/PT from structure at 33 KV Switchyard after switching off supply and carefully removing electrical connection, checking the IR value, opening the top cover by taking down the bolts and nuts, draining oil, checking the dielectric strength of drained oil, filteration/ dehydration and building up the BDV value not less than 50 KV, refilling the oil, fixing back the top cover with new gasket and tightening bolts to restrict any leakage, cleaning terminals, scrapping thoroughly the existing corroded paint / rust, filling the cavities with suitable filler material & painting with one coat of silicon acrylic heat resistant paint of approved quality and colour, mounting back the PT/CT and giving necessary electrical connection all as directed and as specified.

Supplying and laying unreinforced precast cement concrete cable cover, class HV, type 1 flat, size 300mm x 180mm x 40mm made out of M-20 grade PCC as per IS 5820:1970 for cable protection, embossed with "ELECTRIC" on top surface complete incl taking down old all as specified and as directed by Engr-in-Charge.

Material and Labour in replacement of Dial type 100mm dia oil temp meter suitable for 100 KVA to 400 kVA,11KV/ 433V transformers complete all as specified and as directed by Engr-in-Charge.

S &F in replacement of HV side Brass studs threaded both ends of suitable size and length including metal and rubber rings, bolts, washers etc., suitable for 100 to 400 KVA Transformer, Indoor or Outdoor type, 11KV/433V, step down of any make/model complete all as specified and as directed by Engr-in-Charge.

S &F in replacement of LV side Brass studs threaded both ends of suitable size and length including metal and rubber rings, bolts, washer, etc., suitable for 100 to 400 KVA Transformer, Indoor or Outdoor type, 11KV/ 433 V, step down, of any make / model complete all as specified and as directed by Engr-in-Charge.

Supply and laying in replacement GI pipe 100mm dia light grade including all fittings complete laid in trenches/in floor, fixed on wall/ on pole for protection of underground cables all as specified and as directed by Engineer -in-Charge.

Material and Labour for repair replacing old duct cover with new mild steel duct covers with plain/ chequered plate of thickness as as directed by Engineer in charge with frame of angle or other section complete drilled/ welded for fixing of steel sheeting to be prepared for hanging or sliding with and including hooks complete conforming to Fe- 290 (Gde-E165) inclusive of one red oxide primer coat, one under coat and one finishing coat of sythetic enamel paint incl dismantling existing cover all as directed.

Material and Labour for shifting , after disconnecting HT/LT connections of transformer upto 400 kVA 11KV/433V, shifting from any location inside Brichgunj and connecting HT/LT to provide power supply at other location as as directed by Engineer in Charge.

Supply and fix in repairs terminal clamp along with bimettalic strip as per existing model made up of aluminium/ SS along with bolts, nuts and washers suitable for ACSR Conductor to be fixed on 33 KV AB Switch all as directed and as specified.

M & L in replacement of Earth continuity conductor or main earthing lead of 75 x 8 mm galvanized iron strip, buried in 33/11KV yard after removing the aggregates, connecting to existing system by electric welding and GI bolts/nuts/Washers complete all as specified and directed.

All as per item no 39 above but of size 50 x 6mm all as directed and as specified

M&L for painting on old surfaces HT panel/ Steel Structures by spray paint after cleaning strains and grease/oil spots with sand paper & thinner and painting the cleaned surface with synthetic enamel paint of existing colour to achieve good finish by applying two coats of paints by spray painting machine carefully after disconnection of power supply and covering the any meters, indicators name plates and switches to prevent from fall of paint drop on them all as directed and as specified by Engineer in Charge.

Material and Labour for single phase out door type oil cooled potential transformer (PT's) conforming to IS-3156, Ratio:33kV/R3/110V/R3, Burden - 50VA, class of accuracy - 0.2, Frequency:50 Hz, Voltage factor: 1.2 continuous & 1.5 for 30 sec, Ins Level: 70kV/170kVp, INS class-A,Vk> 50V( core 1 & 4) Type of C, complete including first fill of oil and taking down old unserviceable from existing location complete all as specified and as directed by Engr-in-Charge.

Material and labour for 33 KV,single phase out door type oil cooled current transformer (CT's) conforming to IS-2705 of ratio 75/1 Amp, class 0.2 / 5P20, burden 15 VA complete including first fill of oil and taking down old unserviceable from existing location complete all as specified and as directed by Engr-in-Charge.

Supplying , laying, in repair Jointing, testing XLPE insulated, screened, PVC bedded, galvanised steel strip or wire armoured, electric power cables (heavy duty) with aluminium conductor, 11000 volts Earthed, grade cross sectional area 3 core 120 sq. mm complete all as specified and as directed by Engr-in-Charge.

Supply and laying synthetic rubber mats 3mm thick for voltage upto 33 KV for electrical purposeas per IS 15652-2006, (superseding IS 5424) suitable for electrical shock safety of size 2mx1m complete all as specified and as directed by Engr-in-Charge.

Supply only High purity diesel exhaust fluid in sealed container meeting the requirement of ISO 22241 (AUS32) used in diesel engine SCR emission systems complete all as specified and as directed by Engr-in-Charge.

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