REPAIR /RE-WINDING/MAINT TO DIFFERENT CAPACITIES OF TRANSFORMER AND CONNECTED HT ALLIED WORKS UNDER MIL STN SAMBA

Amount

Inspection of defective step down 11 KV /0.433 upto 400 KVA transformer any make, plinth/floor /pole mounted, indoor/outdoor type , step opening removing the top cover of transformer, detecting the fault rectyfing the defect at site (Samba, Dayalachak & Galak) except major fault of burnt winding or other. the following tasks are required to be performed :- (a) Strip opening of the transformer and removing the transformer top cover for checking/rectified the faults of the transformer. (b) Replacement of defective HT/LT bushes, brass spindles etc. (c) Refixing the transformer top cover with new nuts, bolts and washers. (d) Testing of tranformer complete. Notes : (i) In case of replacement of LV/HV bushing /spindles/tap charger etc, will be measured and paid for separately under relevant items. (ii) Transforemer oil (if required ) for topping will measured and paid for separately under relevant item. (iii) SM Nos of the transformers likely to be repaired shall be all as directed by Engr-in-Charge/GE.

Repair/reconditioning of LV leg coil copper for transformer of capacity upto 400 KVA to be done only in case where only insulation is damaged and conductor strip intact i.e, not deformed. This work involve all turns of leg coil to be recoditioned , removing complete insulation from conductor strip, cleaning of conductor , wrapping of conductor with fresh DPC insulation and remaking of LV leg coils with reconditioned strip for use in transformer to match the existing complete all as specified and directed

Supply and replacement of LV leg strip of copper conductor for transformer of capacity upto 400 KVA complete with insulation, varnishing by vaccum impregnation and baking of strip assembly to match with the existing original winding coils etc.complete all as specified and directed

Replacement of unserviceable HV leg coil of copper conductor for transformer of capacity upto 400 KVA complete with insulation, varnishing by vaccum impregnation and baking of coil assembly to match with the existing original winding coils etc. complete all as specified and directed

S&F in replacement of HT bushing, 12000 volts, 50 Hz suitable for transformer 11/0.433 KV, 250 to 400 KVA capacity of any make complete all as specified and directed .

S&F in replacement of HT bushing, 12000 volts, 50 Hz suitable for transformer 11/0.433 KV, 63 to 200 KVA capacity of any make complete all as specified and directed .

S&F in replacement of LT bushing, 1100 volts, 50 Hz suitable for transformer 11/0.433 KV, 250 to 400 KVA capacity of any make complete all as specified and directed .

S&F in replacement of LT bushing, 1100 volts, 50 Hz suitable for transformer 11/0.433 KV, 63 to 200 KVA capacity of any make complete all as specified and directed .

S&F in replacement of HT brass stem, 12000 volts, 50 Hz suitable for transformer 11/0.433 KV, 250 to 400 KVA capacity of any make complete with one chuck nut, two nuts, washers and rubber seal (as per sample) complete all as specified and directed .

S&F in replacement of HT brass stem, 12000 volts, 50 Hz suitable for transformer 11/0.433 KV, 63 to 200 KVA capacity of any make complete with one chuck nut, two nuts, washers and rubber seal complete (as per sample) complete all as specified and directed .

S&F in replacement of LT brass stem, 1100 volts, 50 Hz suitable for transformer 11/0.433 KV, 250 to 400 KVA capacity of any make complete with one chuck nut, two nuts, washers and rubber seal (as per sample) complete all as specified and directed .

S&F in replacement of LT brass stem, 1100 volts, 50 Hz suitable for transformer 11/0.433 KV, 63 to 200 KVA capacity of any make complete with one chuck nut, two nuts, washers and rubber seal (as per sample) complete all as specified and directed .

Toping up/ filling of new transformer oil of low viscocity as per IS 355-1982 & minimum dielectric strength 35 KV in different transformer complete all as specified and as directed. Notes : (i) Transformer oil shall be supplied in sealed container & container shall be property of Department (ii) Contractor shall submit manufacturer's test certificate for Transformer oil

Dehydration including filteration of transformer oil using dehydration filteration plant including testing of sample before and after dehydration and filteration complete all as specified and directed. (The dielectric strength to be achieved 60 KV at 2.5 mm gap after completion of dehydration and filteration). Note:- (i) Dehydration of transformer oil in the Transformer carried out on the site by dehydration machine. (ii) All the Labour work like disconnection of cable and reassemble & drum etc. has to be carried out by contractor under their own arrenement.)

Replacement of unserviceable breather assembly duly filled with silica gel for transformer of capacity upto 400 KVA all as per existing all as directed by Engr-in-Charge or required at site.

Supply and filling of silica gel (Deep sky blue) in to the existing breather assembly of transformer complete all as specified and directed .

Preparation of old painted surfaces and cooling coils/ fins of transformers of 50 KVA to 160 KVA ( incl. 160 KVA) capacity by removing oil marks using chemical or hot blow lamp. Spray painting including filling cavities with filler one coat after cleaning all dust etc, to prepared surfaces using synthetic enamel paint of superior quality of colour as approved by GE / AGE E/M as per standard engineering practice with two coats, writing SM No, MES No, Make and capacity with white paint having height of each letter not less than 2.5cm and width not less than 1cm complete all as specified & directed

All as Per Srl item No 17 here-in-before but of capacity above 200 KVA to 400 KVA ( incl. 400 KVA) complete all as specified & directed

Excavating in trenches in any type of soil, n exc 1.5 m wide and n exc 1.5 m in depth; for foundation, etc. or for shafts, wells, cesspits, manholes, pier holes, etc. n exc 10 sq m on plan and n exc 1.5 m in depth and getting out incl retreiving/ taking out old bricks/ cable covers and stacking at site complete all as specified and directed.

Returning, filling in, including spreading, leveling, watering and well ramming in layers not exc. 25cm thick complete all as specified and directed.

Removing excavated material (soil) to a distance not exc. 50m and depositing where directed at a level n exc. 1.5 m above the starting point complete all as specified and directed.

Material and Labour for dry fine sand cushioning to under ground cables 8 cm thick before laying the cable and 15 cm thick after laying, stretching and testing the cable all as direted. Note : [Punned thickness shall be measured & paid]

M & L for well burnt bricks , laid flat ( old size) sub class B designation 75 for cable protection complete all as specifed and directed.

Disconnecting & taking out defective HT cable of size 95 to 240 smm 3 core 11000 volts from trenches or other position complete all as specified and directed. Notes : Earth work will be measured & paid for separately.

Supply only, testing and commissioning of HT XLPE insulated, screened, PVC bedded, galvanised steel strip or wire armoured, electric power cable (heavy duty ) with aluminium conductor, 11KV grade, suitable for earthed system, with aluminium conductor of following size complete all specified and directed :-

(a) 95 Sqmm 3 core

(a) 120 Sqmm 3 core

M&L for Cable jointing kit for 11 KV (Earthed) grade cable for indoor termination heat shrinkable type joint for 3 core XLPE armoured aluminium conductor cable of size 95 sqmm with jointing material and accessories including testing including taking out unserviceable jointing kit of any type/ description etc complete all as specified and directed.(Note : The Quoted rate shall include for excavation and earthwork in any type of soil.)Make - BIRLA 3 M/RAYCHEM/CAB SEAL/M.seal

M&L for Cable jointing kit for 11 KV (Earthed) grade cable for indoor termination heat shrinkable type joint for 3 core XLPE armoured aluminium conductor cable of size 120sqmm to 185sqmm with jointing material and accessories including testing including taking out unserviceable jointing kit of any type/ description etc complete all as specified and directed.(Note : The Quoted rate shall include for excavation and earthwork in any type of soil.)Make - BIRLA 3 M/RAYCHEM/CAB SEAL/M.seal

M&L for Cable jointing kit for 11 KV (Earthed) grade cable for outdoor termination heat shrinkable type joint for 3 core XLPE armoured aluminium conductor cable of size 95 sqmm with jointing material and accessories including testing and taking out unserviceable jointing kit of any type/ description etc complete all as specified and directed.(Note : The Quoted rate shall include for excavation and earthwork in any type of soil.)Make - BIRLA 3 M/RAYCHEM/CAB SEAL/M.seal

M&L for Cable jointing kit for 11 KV (Earthed) grade cable for outdoor termination heat shrinkable type joint for 3 core XLPE armoured aluminium conductor cable of size 120sqmm to 185sqmm with jointing material and accessories including testing and taking out unserviceable jointing kit of any type/ description etc complete all as specified and directed. (Note : The Quoted rate shall include for excavation and earthwork in any type of soil.)Make - BIRLA 3 M/RAYCHEM/CAB SEAL/M.seal

Material and labour in repairs Cable jointing kit for 11 KV (Earthed) grade cable for straight through heat shrinkable type joint complete with joining material and accessories suitable for 3 core XLPE armoured aluminium conductor cable of size 95 sqmm 3 core with working voltage 11000 volts complete all as specified and direced Make - BIRLA 3 M/RAYCHEM/CAB SEAL/M.seal

Material and labour in repairs Cable jointing kit for 11 KV (Earthed) grade cable for straight through heat shrinkable type joint complete with joining material and accessories suitable for 3 core XLPE armoured aluminium conductor cable of size 120 sqmm to 185 sqmm 3 core with working voltage 11000 volts complete all as specified and direced Make - BIRLA 3 M/RAYCHEM/CAB SEAL/M.seal

M & L in replacement lightning arrester any type, any size all as directed by Engr-in-charge for outdoor use, expulsion type complete with all fittings, transmission class, discharge capacity 65kilo amps, minimum working pressure 11000volts grade conforming to IS complete all as specified and directed Make - Pactil/OBLUM/ABB/Jaipuria/Rastriya /BHEL.

Supply, installation, commissioning and testing of 11 KV Air break switch, gang operated for current rating upto 200Amps, triple pole, horizontal type, mechanically operated with accessories such as polymer insulator assembly (Set of 15 insulators), jumper conductor ACSR with operating mechanism worked from ground level, GI tubing 20mm bore (heavy grade), drop out fuse and steel frame including application of two coats of aluminium paint over a coat of primer including taking down existing unserviceable air break switch of any description/type etc complete all as specified and directed. Make : Rastriya/Jaipuriya/BHEL

M & L in replacement aluminium conductor any type steel re-inforced (ACSR) of any size for HT lines on PCC/Steel Tubular poles, stretching without kinks and bends, binding with (rates inclusive) binding wire complete all as specified and directed. Make- Aliend/ICC/NICCO

M&L for Stay assembly using 20mm dia MS stay rod and stay plate of size 300x300x6mm thick, stay bow , nuts, bolts and check nuts of GI shackle and clamp etc all as shown in Electrical Plate No 01 of SSR Part-I of 2009 including dismantling existing stay assembly complete all as specified and directed. Note : [Excavation/earthwork and PCC in fdn, stay wire and loop type insulatours shall be measured and paid separately]

M&L for Galvanised stay strand, 7/4 mm including dismantling existing stay strand complete all as specified and directed.

S&F in replacement of unserviceable Loop type insulator large size with overall dimensions (90 x140) mm with clearance of hole 25.5 mm vitreous white brown or green complete all as specified & directed Make :- Rashtriya / Jaipuria Brothers / BHEL.

Restretching of existing loose OH, HT ACSR conductor wire and GI wire along the span of poles for sagging within the permissible limit, including winding/rewinding/joining with Aluminium winding wire in case of breakge of conductor, size of winding wire shall not be less than 2 mm complete all as specified and directed. Note : Nothing extra is admissible on account of jointing material and labour in case the conductor breaks during stretching.

M & L for Painting of 4 pole structures comprising of cross arms, supporting angle iron, clamps, nuts & bolts complete with aluminium paint of 1st quality on scraping old painted surface and Painting with one coat of sythetic enemal paint upto 1.5 metre above the ground level with black and yellow colour alternatively 30cm interval from coping of the pole all as directed by Engr-in-Charge.

M & L for Painting of 2 pole structures comprising of cross arms, supporting angle iron, clamps, nuts & bolts complete with aluminium paint of 1st quality on scraping old painted surface Painting with one coat of sythetic enemal paint upto 1.5 metre above the ground level with black and yellow colour alternatively 30cm interval from coping of the pole all as directed by Engr-in-Charge.

Trimming up of tree branches upto 3 mtr all around HT overhead lines, removing cut branches from site complete all as directed. Note :- (i) The overhead lines will be kept clear from all trees by trimming of tree branches with 3 mtr all around the line. Necessary permission will be obtained from department by contractor one day prior to trimming in particular area and shut down of that area will be arranged by department accordingly. The trimming work shall be commenced once it is permitted by AGE in writing. (ii) Total length of line from supply point to load end will be measured for the purpose of payment, irrespective of the No of trees required to be trimed. (iii) only effective length i.e length where tree branches are touching HT line or neaby HT line shall only be measured & paid under this item. No claim whatsoever shall be entertained by the deptt at later stage.

Replacement of Earthing complete with galvanised steel earth plate electrode, 600mm x 600mm x 6mm thick, buried directly in the ground (earth pit not less than 2.25m deep below normal (ground level) with top edge of the plate not less than 1.50m below ground level connected to galvanized earth strip 32 x 6 mm as earth lead by means of bolts, nuts and washers of GI up to test point, GI tubing 40 mm bore medium grade protection pipe, GI watering pipe 20mm bore light grade with funnel and wire mesh, charcoal and salt, 40mm thick pre-cast RCC (1:2:4) type B-0 (Nominal mix) cover reinforced with XPM (weighing n.less than 4 Kg/Sqm) with suitable steel handle, and angle iron 40X40X3mm frame and chamber of PCC (1:3:6) type C-0 (including earth work in any type of soil, removal of surplus soil to a distance n.exc.50m) and connecting, testing on completion, all as shown on electric plate No. 03 of SSR-2009 Part-I, complete all as directed. Notes: 1. Earth lead & protection pipes length upto & including 7.50 metre. 2. Earth filling shall be done by vegitable soil. 3. Soil should be free from stone, boulders, aggregate, gravels etc.

S & F in Replacement of GI strip of size 25X4mm from test point to transformer or other places complete all as specified and directed.

M&L for brazing in repair work for copper strip not exceeding 3.2 cm in length and not exceeding 6 mm in thickness complete all as specified and directed.

M&L for brazing in repair work for aluminum strip not exceeding 3.2 cm in length and not exceeding 6 mm in thickness complete all as specified and directed.

Dismantling of PCC earth pit chamber and making PCC chamber of size as per electrical plate No. 3 of SSR-2009 Part-I with PCC (1:2:4) type B1 including RCC cover with suitable size of handle including excavation and earth work as required at site complete all as specified and directed by the Engineer-in-Charge.

S&F in replacement of RCC cover of earth pit of size as per electrical plate No. 3 of SSR-2009, Part-I complete with suitable handle complete all as specified and directed by the Engineer-in-Charge.

S&F in replacement of funnel with wire mesh suitable for each pit complete all as specified and directed by the Engineer-in-Charge.

S & F Gasket sets for transformer tank 50 KVA to 160 KVA capacity with nuts, bolts etc all as specified and directed .

S & F Gasket sets for transformer tank 200 KVA to 400 KVA capacity with nuts, bolts etc all as specified and directed .

M & L for GI pipe in replacement ( Light grade ) for protection of HT cable fixed to walls/ poles/road crossing including suitable size clamps complete of size 80mm bore, all as specified and directed by Engr-in-charge.

M&L for Construction of Brick masonry platform of size 3.00x3.00 x 1.20 mtr high above ground level including fencing using XPM jalli all-around and gate/steps/foundation etc complete using fly ash brick (non modular, class 7.5) for installation of transformer all as specified and shown on Drg No CEPZ/C-TD/002/13 Sheet 2/5 complete all as specified and directed

Dismantling and taking down transformer any capacity from two pole/four pole structure after taking proper shut down from main power house and refixing on same or any other platform incl electric connection and testing on load complete all as specified and directed by Engineer -in-charge Note :- Required T&P and labour for loading/unloading of transformer is deemed to be included in rate quoted by the contractor.

M/L for preparation of old steel surfaces of XPM jali and angle iron fixed on transformer plinth for painting with two coats of synthetic enamelled paint and two coats of colourwashing over a coat of white wash on old plastered surface complete all as specified and directed by Engineer -in-charge

M&L for spreading of graded course aggregate 40mm nominal size to be spread complete all as specified and directed by Engineer -in-charge

M&L for Cement concrete (1:3:6) type C-2 (using 40mm graded crushed stone aggregates) as in foundation of electric pole and anchor block for stay assembly etc including use and waste of necessary formwork complete all as specified and directed.

Material, fabrications & installing of duct covers made of structural steel conforming to grade Fe-410S sections including welding, bending cold or hot, drilling hole ,shape or size as indicated and inclusive of one primer coat, one under coat and one finishing coat of paint complete all as specified and directed by Engineer -in-charge .

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