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 rectifying 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 transformer 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 Fixing in 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.

Supply and Fixing in 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.

Supply and Fixing in replacement of HT bushing, 11000 volts, 50 Hz suitable for transformer 11/0.433 KV, 250 to 400 KVA capacity of any make complete all as specified and directed.

Supply and Fixing in replacement of HT bushing, 11000 volts, 50 Hz suitable for transformer 11/0.433 KV, 63 to 200 KVA capacity of any make complete all as specified and directed.

Supply and Fixing 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.

Supply and Fixing 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.

Supply and Fixing in replacement of HT brass stem, 11000 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.

Supply and Fixing in replacement of HT brass stem, 11000 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.

Supply and Fixing 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 .

Supply and Fixing 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. (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 arrangement)

Supply and Fixing in 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 .

Material and Labour for 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.

Supply and fixing gasket sets for transformer tank 50 KVA to 160 KVA capacity with nuts, bolts etc complete all as specified and directed.

Supply and fixing gasket sets for transformer tank 200 KVA to 400 KVA capacity with nuts, bolts etc complete all as specified and directed.

Material and Labour 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.

Material and Labour 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.

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.

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.

Returning, filling in, including spreading, leveling, watering and well ramming in layers not exc. 25cm thick 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 complete all as specified in Clause 19.75 of SSR Part-I and directed. Note : [Punned thickness shall be measured & paid]

Material and Labour 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 sqmm 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

Material and Labour 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)

Material and Labour 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)

Material and Labour 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.)

Material and Labour 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)

Material and Labour 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 240sqmm to 300sqmm 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)

Material and Labour 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 240sqmm to 300sqmm 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.)

Material and Labour 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.

Taking out the unserviceable gand operated device after disconnecting the electric HT supply and Supply and fixing air break switch gang operated (GOD) triple pole with drop out fuses mechanically operated, mounted on insulators (15 insulators) & steel frame with operating mechanism & operating rod of GI pipe 25mm medium grade with necessary clamps to be operated from ground level 11 KV grade working pressures and current upto 400 amps etc complete, all as specified and directed.

Supply and fixing aluminum conductor steel reinforced (ACSR) for HT/LT lines on PCC/steel tubular poles, streching without kinks and bends including aluminum binding wires of size Ferret to Dog as per load complete all as spd and directed.

Supply & Fixing stay assembly complete comprising of 16mm dia, 40cm long stay bow rod 16mm dia x 1.8 Mtr long galvanised stay rod threaded and with nuts including 300mm x 300mm x 6mm thick plate GI, stay wire, stay clamps and necessary clamps for any type of pole etc as shown on plate No. 1 on page 495 of SSR Part-I, 2009 complete including taking down U/S stay assembly all as specified and directed. ( Note : Loop type insulator, excavation and concrete work shall be measured and paid separately).

Supply & Fixing in replacement galvanised steel stranded stay wire size 7/3.15mm for stay assembly complete all as specified and directed.

Supply & Fixing in replacement loop type insulator with complete fitting porcelain, vitreous white or brown large size with over all dismensions 90x140mm , clearance of hole 25.5mm all as specified and directed.

Trimming up of tree branches upto 5 mtr all around HT/ LT 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 5 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.(ii) only effective length i.e length where tree branches are touching HT/ LT line or nearby HT/ LT line shall only be measured & paid under this item. No claim whatsoever shall be entertained by the deptt at later stage. (iii) Fortnightly inspection of lines will be made jointly by contractor or his authorised rep and rep of Engr-in-Charge and outcome whether lines are free from tree branches or not kept on record for payment. (iv) The OH line will be maintained for whole period of contract and full payment will be made with Final Bill only. The payment for the period for which line not maintained will be deducted proportionately based on fortnightly inspection carried out as detailed above.

Material and Labour for earthing complete with galvanized steel earth plate electrode 600x600x6mm thickness not less than 6mm thick buried directly in ground (earth pit not less than 2.25 mtr deep below the normal ground level ) with top edge of plate not less than 1.5 mtr below the normal ground level connected to galvanized iron strip 32X6mm by means of nuts bolts,washers,check nuts of GI steel all as shown in electric plate no 3 of SSR -2009 Part II, all as specified and indicated complete and including charcoal dust,salt etc and GI protection pipe medium grade 40mm and GI watering pipe 20mm light grade with funnel and wire mesh ,40mm thick pre-cast RCC M-15 (nominal mix) cover reinforced with XPM weight not less than 4 kg /sqm with suitable handle of 6mm dia MS bar and angle iron 40x40x3mm frame for cover ,PCC M-15 (nominal Mix) pit,excavation and earth work in any type of soil and connected all as specified and as directed. Notes: 1. Earth lead & protection pipes length upto & including 7.50 metre is deemed included in unit rate quoted by the contractor. 2. Earth filling shall be done by vegitable soil. 3. Soil shall be free from stone, boulders, aggregate, gravels .

Material and Labour earthing complete with galvanised steel earth plate electrode , 600x600x6mm thick burried directly in the ground (earth pit not less than 2.25 mtr deep below ground level)with top edge of the plate not less than 1.5mtr below ground level connected to galvanised iron wire 4mm dia as earth lead by means of bolts, nuts and washers of GI up to test point , GI tubing 15mm bore medium grade protection pipe , GI watering pipe 20mm bore light grade with funnel and wire mesh , charcoal , and salt precast PCC 1:2:4 (Nominal mix ) cover with suitable steel handle , and angle iron 40x40x3mm frame for pit cover , PCC 1:2:4 pit including earth work in any type of soil , removal of surplus soil to a distance n.exc 50mtr and connecting , testing on completion all as shown on electric plate No 03 of SSR -2009 Part II complete all as directed. Notes: 1. Earth lead & protection pipes length upto & including 7.50 metre is deemed included in unit rate quoted by the contractor. 2. Earth filling shall be done by vegitable soil. 3. Soil shall be free from stone, boulders, aggregate, gravels .

Supply and Fixing in replacement of GI strip of size 25 x 4mm from test point to transformer or other places complete all as specified and directed.

Material and Labour 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.

Material and Labour for construction of platform of size 3000 x 2500 x 1200 mm for transformer with PCC (1:4:8) in foundation and PCC 1:2:4 type B1, 100 mm thickness at top portion of platform , brick work with cement mortar (1:4) and complete plaster work of 15 mm thick to exposed surface in CM (1:4) including necessary MS work ( i.e. MS jali/fencing/MS angle ) on the top of platform around transformer up to height 90 cm and one coat of white wash on plastered surface complete all as specified and shown on drawing No CEPZ/C-TD/002/13 Sheet 2/5 including dismantling of existing transformer plinth 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 elcetric connection and testing on load complete all as specified and directed by Engineer -in-charge.

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.

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

Material and Labour for plain cement concrete 1:3:6 type C-1 (using 20mm graded crushed stone agreegate) as in coping to poles including necessary formwork for rough finished surface complete all as specified and directed.

Material and Labour in replcement of structural steel work conforming to grade Fe-410S as in cross arms, bracing, supports, clamps and back plates fabricated from structural steel sections, including , nuts, bolts, washers, welding , bending cold or hot drilling holes for bolts in any shape or size as indicated or directed and inclusive of one coat of zink chrome primer and two coats of aluminium paint for 11KV insulation complete all as specified and directed.

INDIA ELECTRIC WORKS

vishesh engineers

dinesh enterprises