CERTAIN REPAIR AND MAINT OF VARIOUS TYPES OF TRANSFORMERS, VCBS AND MAINT OF HT OH LINE AND UG CABLE AND ALLIED WORKS OF ZONE B AND C UNDER GE (EAST) JABALPUR

Returning, filling in excavated soil, including spreading, levelling, watering and well ramming in layers not exceeding 25cm each complete all as specified and directed.

Supply and fixing stay assembly complete with accessories and GI stay rod 20 mm dia 1900 mm long, stay wire 7/4 mm stranded galvanised including mild steel stay plate 300 mm X 500 mm x 6 mm and galvanised thimble, galvanised steel 14 mm dia 400 mm long stay bow and GI nuts, washers including loop type insulator vitreous porcelain white, brown or green big SSRze with overall dimensions 90 mm x140 mm clearance of hole 25.5 mm including taking out existing old/unserviceable stay assembly complete all as specified and shown in electrical plate No. 1 of SSR Part –I (2009).

Repair and overhauling of gang operated drop out / air break switch/isolators 33 KV double break rotating isolated fixed on 33 KV Gantry (33 KV Yard) with replacement of unserviceable parts complete all as directed by Engineer-in-Charge (Note : Labour for replacement of unserviceable parts is deemed

M &L for PCC 1:2:4 type B-2 using 40 mm graded stone aggregate as in filling in surface channels and drains etc complete all as specified and directed.

Dismantling of ACSR/AAC conductor of any SIze from LT poles or distribution span etc complete all as specified & directed.

M&L for cable jointing kit for 11 KV (Earthed) grade cable for straight through cold shrink type joint complete with jointing material and accessories suitable for 3 core XLPE armoured aluminium conductor cable of Size 120 sqmm to 185 sqmm and testing on completion complete all as directed.

Dismantling of MS channel or angle sections, insulators any type & SIzes, brackets, clamps, nut, bolts, washers, of any type/Size from LT poles or distribution span etc complete all as specified & directed.

to be included in the unit rate quoted against this item. Spare Parts will be measured and paid for separately under relevent items as 'Supply only' )

M&L for stretching and then stengthening of over head Galvanised steel wire 3.15 or 4mm dia on existing HT poles including binding & jointing the conductor and testing complete all as specified and directed.

Fixing only for binding from disc/shackle/loop insulator etc and rebinding after tightening/restringing of AACSR/AAC/HT over head conductors of any SIze with and including 14 SWG binding wire and testing, complete all as specified & directed.

M &L for PCC 1:3:6 type C1 using 20 mm graded stone aggregate as in coping of pole ect including form work & finishing the surfaces even & smooth with out using extra cement complete all as specified and directed.

S & F in replacement , PVC insulation tap 3/4 inch width, 7.3 mtr long complete all as specified and as directed.

S&F,in replacement, HT insulation tap 19 mm width, not less than 9.1 mtr long complete all as specified and as directed.

M & L for preparation of old painted surface of LT steel tubular electric pole 9 mtr Hights including channel and clamps by removing all dirt, dust,etc and painting with two coat of synthetic aluminium paint over a coat of red oxide paint including making five strips of 30cm each upto 1.5 mtr above PCC pedal with two coats of black and white synthetic enamel paint including marking/numbering of pole number by means of stencil complete all as directed by Engineer-in-Charge. Note:- All necessary T&P required at Site for painting shall be arranged by contractor at his own cost and quoted rate shall be deemed to be included for all these provisions and nothing extra shall be paid on this account.

(A) Disconnecting and taking down of faulty/ defective alumunium/ copper wound TRANSFORMERS of capacity 40 KVA- 1000 KVA, ratio 11/0.433 or 0.415 KV from 2/4 pole structure or Sub Station in Jabalpur cantt and transporting the TRANSFORMERS to workshop for complete overhauling/ repairing & servicing as specified in sub Para (B) here- in - after and transporting back the TRANSFORMERS from workshop to its existing location after complete overhauling/ repairing & servicing including loading & unloading of TRANSFORMERS into the truck with the help of skilled labours and re-installatio

Supply and laying or fixing or passing in trenches/ on pole/ through pipes and testing on completion, 11000 volts grade(Earthed) XLPE insulated, screened PVC bedded, galvanised steel strip or wire armoured, electric power cables (heavy duty) with stranded aluminium conductor of cross section area 120 sqmm, 3 core including taking out the old unserviceable XLPE/ PILCA cable complete all as directed. (Note : Excavation, earthwork, sand cushioning and cable protection will be measured and paid for separately)

Supply only LV leg coils of aluminium conductor for TRANSFORMERS of capacity upto 1000 KVA complete with insulation, varnishing by vaccum impregnation and baking of coil assembly in oven etc, to be fixed, complete all as specified & directed.

Supply only LV leg coils of copper conductor for TRANSFORMERS of capacity upto 1000 KVA complete with insulation, varnishing by vaccum impregnation and baking of coil assembly in oven etc, to be fixed, complete all as specified & directed.

Supply only HV leg coils of aluminium conductor for TRANSFORMERS of capacity upto 1000 KVA complete with insulation, varnishing by vaccum impregnation and baking of coil assembly in oven etc, to be fixed, complete all as specified & directed.

Supply only HV leg coils of copper conductor for TRANSFORMERS of capacity upto 1000 KVA complete with insulation, varnishing by vaccum impregnation and baking of coil assembly in oven etc, to be fixed, complete all as specified & directed.

(B) M&L for opening the top cover of defective aluminium/ copper wound TRANSFORMERS of capacity upto 1000KVA, ratio 11/0.433 or 0.415 KV for complete overhauling/ repairing & servicing in folllowing manner:- (a) Taking out the transformer oil from TRANSFORMERS and store the same into seperate barrel container. (b) Taking out the core/ coil assembly of TRANSFORMERS. (c ) Cleaning of TRANSFORMERS inside by using transformer oil. (d) Re-fixing the core/ coils after complete repair/ replacement of core/ coils or re-fixing of re-conditioned core/ coils in TRANSFORMERS including heating up of TRANSFORMERS core assembly to remove complete moisture. (e) Replacement the HV/ LV spindles and bushings etc. complete all as directed by Engineer-in-Charge. (f) Re-fixing of the TRANSFORMERS top cover with and including new rubberized gasket set and nuts, bolts and washers for top cover as per existing make/ as per manufacturer's recommendations duly approved by GE and tightening of all nuts, bolts, screws & gasket etc (g) Checking of all electrical and mechanical components at workshop after making the TRANSFORMERS fully fuctional. (h) All other parts/ items/ components of TRANSFORMERS which are necessary to be replace in the opinion of Engr-in-Charge/ as per manuacturer's recommendations for smooth functioning of TRANSFORMERS, same shall also be replace for smooth functioning and cost of the same shall also be deemed to be included in the unit rate quoted by the contractor.

Supply and fixing of new rubberized gasket set and nuts, bolts and washers for top cover, LT terminal box and replacement of LV/ HV spindles & bushings if found unserviceable etc as per existing make/ as per manufacturer's recommendations duly approved by GE suitable for indoor/ outdoor TRANSFORMERS of capacity up to 1000 KVA to stop the leakage after opening the top cover and taking out and re-filling the transformer oil after filtration/ centrifuSSRng of oil as required in various sub stations under GE (E) Jabalpur complete all as specified and directed. Notes:- (i) HV/ LV spindles and bushings shall be measured and paid separately under respective items of BOQ as supply only. (ii) Filtration/ centrifusing of usable transformer oil including filter action by uSSRng automatic centrifuSSRng machine shall be measured and paid separately under respective item of BOQ. (iii) Topping of TRANSFORMERS with new transformer oil if required and same shall be measured and paid seprately under respective item

Supply and fixing in replacement of Danger notice plate of 1.6mm thick MS sheet vitreous enamelled white with letters, figures and conventional skull and bones in Signal Red colour and inclusive fixed with MS flat clamps 25x3mm 2 Nos, nuts, bolts for HT 11000 volt of Size 25x20cm complete all as specified and as directed.

0mm bore GI medium grade, concrete chamber in PCC (1:4:8) type D-2 using 40 mm grade aggregate, coping shall be in PCC (1:3:6) type C-1 using 20 mm grade aggregate and internal surfaces of concrete chamber shall be given 12mm thick plaster in CM (1:4), funnel with wire gauge of 22 gauge 8 mesh per linear including 50mm thick cover of RCC (1:2:4) type B-1 using 20mm grade stone aggregate reinforced with 8mm MS TMT bar @ 75 mm C/C both ways, char coal dust and common salt all as shown in electrical plate No. 3 of SSR Part-I (2009) including all necessary excavation & earth work and removal of surplus soil to a distance n. exc 50M and providing connection points with MS/ GI bolts & washers as required and connection from earth test point to earth electrode with same GI earth strip alongwith protection pipe and testing on completion complete all as specified and directed. Note:- GI strip and protection pipe from earth electrode to test point max upto 7.50M shall be deemed to be included in the unit rates as quoted by the contractor.