REPAIR/ MAINTENANCE OF OVER HEAD LINES / UG CABLES AND TRANSFORMERS FOR DGRE RDC MANALI AT AGE(I) R AND D, MANALI.

Amount

M&L for spray painting of Transformer (including bringing compressor of suitable size at site) old painted steel or iron surface of 100 to 400 KVA transformer (11/0.433KV) complete with all connected fittings & fixtures i.e. buchholz relay, conservator tank, cooling fins and other standard fittings & attachments as per existing colour scheme and pattern with atleast one coats of synthetic enameled paint over two coats of red oxide primer after duly preparing the surface by cleaning with scrapers and emrey paper to the entire satisfaction of Engr-in-charge complete all as specified and directed by Engr-in-charge. Note:- Contractor will apply one layer of greese over specification plate / any written letter before painting and clean the same after painting, rates for the same is deemed to be included in the item quoted rates.

Disconnecting electrically and mechanically outdoor transformers upto 400 KVA carefully for major/minor repairs complete all as specified and directed.

M&L lifting of core assembly by opening of top cover and other items for checking of faults/repair and lowering / refixing the same in its original position after inspection to make it ready for transportation to carry out rewinding work in workshop including transportation of unservicieable transformer upto 400 KVA capacity to workshop (rate is deemed to be inclusive of transportation , T&P and men power ) complete all as specified and directed.

M&L for transportation of transformer of capacity upto 400 KVA from site to workshop using Hydra/Crane and truck as per requirement to replace defective transformer including installation, testing and connecting at site and to deposit the same from workshop to site after repair including installation of repaired transformer at site complete all as specified and directed. Note:- Contractor must arrange for transportation and installation for replacement of transformer at site immediately after receipt of verbal/ telephonic/ written complaint from JE/ Engr-in-Charge within 1 day. Any delay beyond 1 day post receipt of complaint shall be penalized @ Rs 2500/- per day and shall be recovered from next due RAR.

M&L for alternative arrangement by hiring, transportation of transformer of capacity up to 400 KVA in place of unserviceable transformer on hire basis for 15 days including, installation, connecting and testing of transformer and return back after installation of repaired transformer complete all as specified and directed. Notes:- (i) Contractor must arrange hired transformer including transportation and installation at site immediately after receipt of verbal/telephonic/written complaint from JE/Engr-in-Charge within 1 day. Any delay beyond 1 day post receipt of complaint shall be penalized @ Rs 3500/- per day and shall be recovered from next due RAR. (ii) Repairing of transformer must be completed within 15 days after receipt of verbal/ telephonic/ written complaint from JE/Engr-in-Charge. In case of any delay, no extra claim will be entertained towards hiring charges beyond 15 days and the contractor shall not be allowed to shift the hired transformer until replaced by repaired transformer. In case of any kind of fault / defect occurred in hired transformer, the contractor shall have to arrange further replacement without any additional cost and shall repair the defect from his own expenses. (iii) Contractor should check the available infrastructure and to be sure regarding safety of hired transformer before installation. The rate quoted is deemed to be including transportation cost, earthing lead etc.

Taking out the unserviceable copper winding from transformer of capacity upto 250 KVA after opening top cover, and carrying out the following work complete all as specified and directed :- (a) Dismantling of all attachment viz breather assembly, conservator, oil temperature gauge, HT/LT bushing etc. and keeping aside for reuse.. (b) Taking out the core with winding assembly. (c) Removing of complete winding from core and dismantling the core, cleaning of core laminate sheet and keeping aside for reuse (d) Cleaning of complete transformer tank oil fins, removing of sludge, and making the inside surface of tank dry by blowing of hot air as directed and specified.

All as per item No 6 here-in -before but capacity of transformer 315 to 400 KVA. Note for Item No 06 & 07 : - In case the defective transformer not repaired & installed at site within the specified period of 15 days from the date of handing over of defective transformer/complaint to contractor, a penalty recovery @ Rs 500/- per day will be charged from his dues.

(a) Repairs to the transformer of capacity upto 250 KVA as follows :- (i) Rewinding of HT/LT leg coil complete using copper wire /strip of appropriate gauge, size and turn as per existing with double paper coated insulation including all requisite insulating materials like packing sleeves, separator, tapes etc. heating, varnishing the core and winding assembly after framing up top and bottom steel structure of transformer all as specified and directed. (ii) Replacement of all insulating materials other than incorporated for rewinding of HT/LT coils as per existing. (iii) Fixing only HT procelain bushing with studs, nuts, washers 3 Nos. and LT procelain bushing with studs, nuts, and washers 4 Nos. and connection with primary and secondary windings and reconnecting with the main terminals as required and directed. (iv) Fixing only breather assembly, conservator, oil temperature gauge after proper cleaning, minor repairs etc. as required and directed. (v) Replacement of all unserviceable gasket from top cover, HT/LT bushing with new one by using rubberised gasket sheet 4.0mm/6.0mm thick duly pasted with suitable adhesive . (vi) Replacement of unserviceable bolts with new one and fixing of existing serviceable bolts, nuts, washers of different sizes and tightening properly. (vii) Repositioning of core and winding assembly inside the tank, assembling complete unit and making the transformer ready for filling oil and subsequent testing as directed. (viii) Filling/topping up of new transformer oil of required quantities .

(b) M& L for transportation of repaired transformer to the original position (from where taken-down), disconnecting the alternative transformer, taking down the same, Re-installation of repaired indoor/outdoor transformer on 4/6 pole structure/plinth/inside sub station, connecting electrically and mechanically, testing and commissioning complete all as specified and directed. (c) The following routine test as per IS 2026 (Part I) -1977 shall be carried out at repairing workshop/manufacturer having NABL Lab accredition and valid calibration of test equipments and shall submit MOU with any repairing workshop/manufacturer as per format attached along with quoted tender, bid shall be rejected in case of non submission of MOU/MOU from non qualified repair workshop/manufacturer: (i) Measurement of winding resistance. (ii) Measurement of voltage ratio and check of voltage vector relationship. (iii) Measurement of impedance voltage/short circuit impedance (principal tapping) and load loss . (iv) Measurement of no load loss and current. (v) Measurement of insulation resistance. (vi) Dielectric tests (d) The contractor shall give written warranty of one year from the date of sucessfull testing and installation of transformer. The contractor shall submit test report from repair workshop/manufacturer for above mentioned test. Note :-HT/LT leg coils copper wire/strip and transformer oil required shall be measured and paid separately under relevant items of this Schedule here-in-after as supply only.

All as per item No 8.0 & 8.01 here-in -before but capacity of transformer 315 to 400 KVA.

Supply only HT coils with super enamelled copper wire /DPC of high quality duly matching with the existing guage and impedance.

Supply only LT coils with super enamelled copper wire strip/DPC of high quality duly matching with the existing guage and impedance.

M&L for ON load Centrifuging and dehydration including filteration and cleaning of transformer oil by dehydration machine of 11/0.433 KV transformer installed at various site on plinth 2/4 pole structure of any capacity and topping up deficient transformer oil including testing of samples before and after dehydration and filteration complete all as specified and directed. Note :- Deficient quantity of Transformer oil required for top up shall be measured and paid separately under item No 13 here-in -after as supply only.

Supply only transformer oil of approved quality as per IS having dielectric strength of 45-60 KV in 2.5mm gap for filling in transformer or for topping up as required and directed

Supplying and fixing in repairs, Porcelain Transformer bushing on LT (440 Volt) side, including brass stems conical bush and gasket after disconnecting electrically and mechanically for indoor/outdoor transformer of capacity 250 KVA and re-connecting electrically and mechanically, testing complete all as specified and directed. Note.The rates quoted is deemed to be included the cost of necessary labour charges for draining out & re-filling transforer oil, opening of top cover by unscrewing nut, bolts washers and provision of pad type bus bar almuminium of approppiate size /capacities of transformers with nut bolt & washers.

All as per Serial item No 14 here-in-before but capacity 400 KVA

Supplying and fixing in repairs, Porcelain Transformer bushing on HT (11 KV) side, including brass stems conical bush and gasket after disconnecting electrically and mechanically for indoor/outdoor transformer of capacity 250 KVA and connecting electrically and mechanically, testing complete all as specified and directed. Note.The rates quoted is deemed to be included the cost of necessary labour charges for draining out & re-filling transforer oil, opening of top cover by unscrewing nut, bolts washers and connections.

All as per Serial item No 16 here-in-before but 400 KVA

Supplying and fixing in repairs, all unserviceable gasket after disconnecting electrically and mechanically for indoor/outdoor transformer of capacity 250 KVA and re-connecting electrically and mechanically, testing complete all as specified and directed. Note. The rates quoted is deemed to be included the cost of necessary labour charges for draining out & re-filling transforer oil, opening of top cover by unscrewing nut, bolts washers etc.

All as per Serial item No 18 here-in-before but 400 KVA

Supplying and fixing in repairs, Silica Gel Breather assembly including vent pipe and Silica Gel for indoor/outdoor transformers, capacity upto 400 KVA complete all as specified and directed.

Supply and fixing Thermometer of transformer upto capacity 400 KVA complete all as specified and directed.

M&L for cross arms, bracings, supports, channel,clamps and back plates fabricated from steel section 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 primer coat, one under coat and one finishing coat of paint complete including taking out existing supports of wooden pieces for holding overhead conductor complete all as specified and directed by Engr-in-charge.

Dismantling burnt / defective Gang Operated Switch keeping away from site , Supply & install 11 KV 3 Phase Gang operated air break switch with drop out fuses set ( consisting 12 Nos Post Insulator ) 400 amp capacity, vertical mounting with fixed and moving contacts complete with locking arrangement and fixing the gang operated switch on existing two/four pole structure including making all jumper connections with insulated leads of suitable size with line tops etc, all as specifed and directed.

S&F in repairs of lightening arrestor explusion type complete with all fittings, transmission class, discharge capacity 65kA and suitable for working voltage 11000 volts complete all as specified and directed by Engr-in-charge.

S&F in repairs of danger notice plate of 1.6mm thick mild steel sheet, vitreous enamelled white, with letters, figures and conventional skull and bones in signal red colour and fixed with & including M.S. clamps, bolts and nuts of approved size, for LT of 20x15cm size complete all asspecified and directed by Engr-in-charge.

S&F in repairs of danger notice plate of 1.6mm thick mild steel sheet, vitreous enamelled white, with letters, figures and conventional skull and bones in signal red colour and fixed with & including M.S. clamps, bolts and nuts of approved size, for HT of 25x20cm size complete all asspecified and directed by Engr-in-charge.

Cleaning, preparing and painting with one coat of super enamalled aluminium paint over two coats of red oxide primer to cross arms, MS channels, angle iron, frame work, on pre-stressed HT concrete 2 pole/4 pole structure complete all as directed by Engineer-in-Charge.

Earthing complete with galvanized steel earth plate electrode 60 cm x 60 cm x 6 mm thick buried directly in ground (earth pit not less than 2.25 metres deep below normal ground level) with top edge of plate not less than 1.5 metres below normal ground level, connecting to the Galvanised iron strip 25x4 mm by means of bolts, nuts , check nuts and washers of galvanized iron and steel earth wire protected by provision of GI light grade pipe 40 mm bore including provision of concrete pit made from PCC ( 1:2:4) type B-1 (using 20 mm graded stone aggregate) with 40mm thick cover of RCC 1:2:4 reinforced with XPM (Weight not less than 4 Kg/Sqm) and frame of angle iron 40 x 40 x 6 mm and handle of 6 mm dia MS bar made to shape, GI light grade 20 mm bore pipe for watering perforated at bottom, 1.50 metre long placed on top edge of earth plate, common salt & charcoal filling, with fixing arrangement , funnel, wire mesh and earth work in hard/dense soil , returning filling in and removal of surplus soil to a distance not exceeding 50 metres, all as per electrical plate No 5 of SSR 2009 Part-I and connecting to Transformer / Poles all as specified or indicated including testing on complete all as specified and as directed by Engineer-in-Charge.

Earth continuity conductor or main earthing lead fixed to wall on batten or recess or chases or buried in ground or drawn in conduit/pipe or fixed to poles or any other indicated situation for loop earthing/connecting as required 25x4 mm galvanised iron strip complete all as specified and directed by Engr-in-charge.

Earthing complete with galvanized steel earth plate electrode 60 cm x 60 cm x 6 mm thick buried directly in ground (earth pit not less than 2.25 metres deep below normal ground level) with top edge of plate not less than 1.5 metres below normal ground level, connecting to the Galvanised earth lead wire 4.0 mm dia by means of bolts, nuts , check nuts and washers of galvanized iron and steel earth wire protected by provision of GI light grade pipe 40 mm bore including provision of concrete pit made from PCC ( 1:2:4) type B-1 (using 20 mm graded stone aggregate) with 40mm thick cover of RCC 1:2:4 reinforced with XPM (Weight not less than 4 Kg/Sqm) and frame of angle iron 40 x 40 x 6 mm and handle of 6 mm dia MS bar made to shape, GI light grade 20 mm bore pipe for watering perforated at bottom, 1.50 metre long placed on top edge of earth plate, common salt & charcoal filling, with fixing arrangement , funnel, wire mesh and earth work in hard/dense soil , returning filling in and removal of surplus soil to a distance not exceeding 50 metres, all as per electrical plate No 5 of SSR 2009 Part-I and connecting to Poles all as specified or indicated including testing on complete all as specified and as directed by Engineer-in-Charge.

M & L test point terminal block made of gun metal or phosphorus bronze size gun metal or phosphorus bronze size 75 X 75 X 25 mm, drilled and screwed including 3 nos. 8mm dia 25 mm long hex. Head screw.

M&L in replacement of synthetic insulating mat of size 2m x 1m x 12 mm complete all as specified and directed by Engr-in-charge.

S&F in repairs 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 complete (as per sample) all as specified and directed by Engr-in-charge.

S&F in repairs of HT brass stem, 11000 volts, 50 Hz suitable for transformer 11/0.433 KV, 100 to 200 KVA capacity of any make complete with one chuck nut, two nuts, washers and rubber seal complete (as per sample) all as specified and directed by Engr-in-charge.

S&F in repairs 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 complete (as per sample) all as specified and directed by Engr-in-charge.

S&F in repairs of LT brass stem, 1100 volts, 50 Hz suitable for transformer 11/0.433 KV, 100 to 200 KVA capacity of any make complete with one chuck nut, two nuts, washers and rubber seal complete (as per sample) all as specified and directed by Engr-in-charge.

M&L for restringing of LT OH conductor ACSR including binding of conductor making jumper connection etc complete all as specified and directed by Engr-in-charge and directed. Note:- One conductor will be measured as one length.

M&L for cutting of tree branches touching or leaning over overhead power lines and removing of cut tree branches from the site complete all as specified and directed by Engr-in-charge and directed.

S & F PVC Line spacer of superior quality of 2 Way spiral type complete all as specified and directed.

S & F PVC Line spacer of superior quality of 4 Way spiral type complete all as specified and directed.

Dismantling/Taking down existing unserviceable ACSR conductor of any make and removing from site or setting aside for reuse complete all as specified and as directed.

Supply and fixing aluminum conductor steel reinforced (ACSR) of size 1 of 6/1x2.59mm (Weasel) for LT lines on pre-stressed concrete poles, streching without kinks and bends including aluminum binding wires complete all as specified and directed by Engr-in-Charge.

Dismantling & taking down insulator any type any size from LT/HT poles.

S&F Pin Insulator, porcelain, vitreous white, brown or green insulator incl one galvanized mild steel spindle,two galvanised iron washers and one galvanised iron nut , 100 mm height , 65 mm dia for 1100 volts grade.

The Rahul Vig (BID ID -3398046)