REPAIR / RENEWAL OF HT WKS 66 /11 KV SWITCH YARD AND ALLIED HT WKS OF CENTRAL ZONE AREA SOUTH ZONE AREA UNDER GE (N) BINNAGURI

Amount

Schedule 'A'

M&L for complete servicing and calibration of HT 11 KV VCB relays and tripping mechanism for regulating the fault flow (Over current, earth fault, differential) in sequence from down stream 11 KV distribution VCBs to SF-6 breaker at 66/11 KV receiving station / CPH complete and getting tested and certified by the authorized testing / manufacturing agency for accuracy and effective functioning and servicing and cleaning to VCB trolleys 11 KV, 3 pole, 630 Amps including repairs to auto charging system of vacuum circuit breaker by servicing the changing mortors and operating mechanism and electric connections, complete all as specified and as directed. Certificate for testing to be provided from auth licence agency / dealer of OEM

M&L for maint of battery bank system of 55 bty of 2 volt capacity 150/200 Amp by cleaning contact & providing petroleum jelly complete all as directed by Engr-in-Charge.

Material and labour for applying two coats of aluminum paint to steel tubular HT pole 9.0 mtr long including cross arms after preparation of existing surface complete all as specified and directed.

Material and labour for applying two coats of aluminium paint to steel tubular HT pole 11 mtr long including cross arms after preparation of existing surface complete all as specified and directed.

Material and labour for applying two coats of aluminium paint to steel tubular HT pole 16 mtr long including cross arms after preparation of existing surface complete all as specified and directed.

Dehydration, hot filtration de sludging of transformer oil of any type / capacity of transformer at site including all arrangement of tools plants etc to achieve dielectric strength not less than 80 KV(rms) with 2.5 mm testing gap complete all as directed. (Note : Oil to be tested before and after filtration and test report to be submitted by the contractor)

Supplying, filling dehydration and filtration of new transformer oil for taping up / replacement of transformer oil having dielectric strength not less than 80 KV (rms) with gap of 2.5 mm all as conforming to IS 335 of 1993.

Supply and replacing Surge counter Monitor suitable Lightning Arrestor (Surge Arrestor) for a rated voltage of 72.5 KV, Model No SC-07-1 compete all as specified and as directed

Material and labour for earthing complete with galvanized steel plate electrodes of size 600x600x6mm thick buried directly in ground with earth pit not less than 2.25 meter deep below normal ground level with top edge of plate not less than 1.5 meter below normal ground level connected to galvanized strip of size 32 x 6 mm earth lead by means of nuts bolts check nuts GI washers earth wire protected by galvanized iron pipe 40 mm bore ( light grade) for poles/lightening arrestors/GO Switch/ transformer/panel including connection to HT overhead lines all as directed including concrete pit in PCC (1:3:6) type CI, precast RCC cover slab of size 55x55x15 cm with one handle for lifting made out of 8 mm diameter MS bar finnel wire mesh 20 mm bore galvanized iron pipe (medium grade) for watering charcoal or coke and salt in alternate layers necessary earth work in soft/loose soil complete all as shown in electrical plate No. 3 of SSR Part-I including testing on completion all as specified and directed.

S&F of earth continuity conductor or main eathing lead fixed to wall on batten or recess or chases or buried in ground drawn in conduit/ pipe or fixed to poles or any other indicated situation for loop earthing etc. as required galvanized iron strip of size 32X6 mm.

All as per item No 09 here-in-above but with electrode manufactured from custom made GI tube of size 30mm dia and 20 feet long with adequate galvanisation to ensure maximum conductivity and prolong service life as directed by the engineer-in-Charge and approved by the GE including boring and GI earth strip 07 size 65X5mm -dito-

S&F in replacement for GI pipe 40 mm bore steel tubing light grade ISI marked for protection of cable including necessary joints complete all as specified and as directed.

Supply and replacing of metallic clamps/connections conforming to ISI inclusive of fixing accessories for 66 KV expansion joint connection between tubular bus to equipment insulators flexible conductor to equipment/insulators tabular bus to other tubular bus for vertical connection/horizontal extension or connection all as required complete all as specified and as directed.

Supply, fixing and testing post top insulator in 3 series including necessary connection with 66 KV distribution system complete all as specified and as directed. Note : Each insulator of the 3 series shall be of 33 KV rating.

Material and labour for applying two coats of aluminium paint to GI structure of dirrerent size channel/angle/flat strip/pipe etc at 66 KV distribution structure after preparation of existing surface complete all as specified and directed

Dismantling /disconnecting existing unserviceable Cross arms fitted on poles complete all as directed.

M&L for cross arms bracings, supports, clamps and back plates fabricated from structural steel sections incl nut & bolts , washers, welding, bending cold or hot drilling holes for bolts, in any shape or size as indicated or directed incl painting all as directed by Engr-in-Charge. .

M&L in replacement for Pin type porcelain, vitreous, white, brown or green insulator including one galvanized mild steel spindle two galvanized iron washers and one nut, 150mm height 150mm dia for 66KV grade complete all as specified and directed.

M&L in replacement of rubber mats of size 2mx1mx19mm complete all as specified and directed.

M & L for switch air break gang operated triple pole out door type with V type insulator drop out switch fuse unit on HT 22 KV 50 cycle AC suitable for current rating upto 400 amps mechanically operated mounted on insulators and frame with operating mechanism worked from ground level with and including locking arrangement and dismantling old one all as directed by Engr-in-charge

Material & labour for straight through joints, outdoor, heat shrinkable type (Earthed) suitable for 3 core 95 Sqmm 11000 Volts grade XLPE cable with jointing materials and accessories complete including testing after jointing complete all as specified and as directed.

Material & labour for straight through joints, outdoor, heat shrinkable type (Earthed) suitable for 3 core 120 Sqmm to 185 sq mm 11000 Volts grade XLPE cable with jointing materials and accessories complete including testing after jointing complete all as specified and as directed.

S & F outdoor cable end termination joint cold shrinkable type suitable for 3 core 70/95 Sqmm 11000 Volts grade XLPE cable complete including testing after jointing

S & F Indoor cable end termination joint cold shrinkable type suitable for 3 core 70/95 Sqmm 11000 Volts grade XLPE cable complete including testing after jointing.

S & F outdoor cable end termination joint cold shrinkable type suitable for 3 core 185 Sqmm 11000 Volts grade XLPE cable complete including testing after jointing.

S & F of Indoor cable end termination joint cold shrinkable type suitable for 3 core 185 Sqmm 11000 Volts grade XLPE cable complete including testing after jointing.

M&L for filling of Gas in SF-6 circuit breaker 66 KV upto required level complete all as specified and directed at site

M&L for taking out old unserviceable cable of any size from trenches , GI pipe protection, with and including separating serviceable bricks & set aside and removing un-serviceable bricks from site complete all as specified and as directed. ( Note : (i) The Excavation and earth work shall be measured and paid separately under relevant item of Sch).

Relaying only cable of sizes 70-185sq mm 3 core retrieved from item No- 25 , after rectifying defects complete as specified and as directed. NOTE: (i) Earth work & Excavation, GI pipe brick protection etc shall be measured and paid separately under relevant items of this schedule.

Supplying, laying, jointing, testing and commissioning HT XLPE insulated, screened , PVC bended galvanized steel strip or wire armoured, electric power cable (heavy duty) with aluminium conductor screening with extruded semi conditioning layers insulation screening with copper tape cover laid upto with PVC (ST-2) extruded, inner sheathing galvanized steel strip armoured PVC (ST-2) outer sheathed cable confirming to IS-7098 (Pt-II) 11/6.35 KV grade suitable for earthed system cross sectional area 185 sqmm 3 core H.T.U.G cable laid in trenches/through GI pipe/fixed along with pole complete all as specified & as directed including taking out of old unserviceable cable. NOTE : Specification of cable shall be as under:- (a) Inner sheathing shall be of extruded PVC. (b) Cable shall also be supplied with sequences hall marking at every metre on the luner sheathing. (c) Ultra violet radiation resistance compounded comprising to ASRM-2863 flame netarded as per EIV specification. (d) Anti rodent and antitermite compound added. (e) PVC compounds of various grades as IS-5831. (f) Compaction conductors shall be shaped and arrangment to the same will be on the cable.

Supplying, laying, jointing, testing and commissioning HT XLPE insulated, screened , PVC bended galvanized steel strip or wire armoured, electric power cable (heavy duty) with aluminium conductor screening with extruded semi conditioning layers insulation screening with copper tape cover laid upto with PVC (ST-2) extruded, inner sheathing galvanized steel strip armoured PVC (ST-2) outer sheathed cable confirming to IS-7098 (Pt-II) 11/6.35 KV grade suitable for earthed system cross sectional area 95 sqmm 3 core H.T.U.G cable laid in trenches/through GI pipe/fixed along with pole complete all as specified & as directed including taking out of old unserviceable cable. NOTE : Specification of cable shall be as under:- (a) Inner sheathing shall be of extruded PVC. (b) Cable shall also be supplied with sequences hall marking at every metre on the luner sheathing. (c) Ultra violet radiation resistance compounded comprising to ASRM-2863 flame netarded as per EIV specification. (d) Anti rodent and antitermite compound added. (e) PVC compounds of various grades as IS-5831. (f) Compaction conductors shall be shaped and arrangement to the same will be on the cable.

Excavation in trenches in soft/loose soil not exc. 1.5 metre wide and not exc. 1.5 metre in depth and getting out for taking up / laying under ground electric cable/errection of pole complete all as specified and as directed.

Returning, filling in, including spreading leveling watering and well ramming in layers not exceeding 25 cms in depth complete all as specified and as directed.

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

Laying only serviceable bricks obtained from item No 25 here in before complete all as specified and as directed.

Supply and lay dry river sand filling for under ground cable protection with a layer of 8cm deep before laying and 15cm covering above the top edge of cable after laying complete all as specified and as directed.

Supplying and Laying Reinforced Precast Concrete Cable Cover, class HVP, type – 1, flat size 300 mm x 180 mm x 40 mm complete all as specified and as directed

M&L 100 mm bore steel tubing light grade ISI marked for protection of cable including necessary joints complete all as specified and as directed.

M/S SARKAR BROTHERS

M/s Debendra Prasad Gupta