CWE/HSR/ALW-45 OF 2021-22 REPAIR/MAINTENANCE OF TRANSFORMER HT DISTRIBUTION SYSTEM IN CITY AREA AT ITARANA ALWAR

Amount

Servicing, testing and calibration of HT 11 KV VCB and all other connected accessories and carrying out necessary maintenance such as applying grease, gel etc. including carrying out necessary repairs along with making arrangements for testing of equipment and necessary instruments required for testing of relays installed over the panel all as specified and as directed by Engr-in-charge.(Sr. No. 58271VG Make: Crompton Greaves) NOTE:- i) While carrying out the checks if any of the relay/other parts is to be replaced the same will be replaced by the service engineer and the relays/other parts will be measure and paid in appropriate items as supply and fix.

Supply and replacement of over current/earth fault/earth leakage/Short circuit trpping/ CGI 14 N relay for 11 KV VCB panel (Sr. No. 58271VG Make: Crompton Greaves) for successful operation at the time of fault occurence complete all as specified and directed.

Supply and replacement for 11 KV, CTs ( 1x2 core or 2x1 core type) dual ratio,100-50/5+5amp *-*/1-1A core 1, class 0.5 class 5P10, 15 VA burden,CT & PT Fuses (Sr. No. 58271VG Make: Crompton Greaves)complete all as specified and directed.

Supply and replacement of charging Motor suitable for existing 11 KV VCB complete all as per specified and directed.(Sr. No. 58271VG Make: Crompton Greaves)

Supply and Fixing in repair Power Pack suitable for 630 Amp VCB (Sr. No. 58271VG Make: Crompton Greaves)11 KV as per Directed by Engineer-in-Charge

Material and Labour for complete control wiring suitable size as per Existing 11 KV,630 Amp VCB (Crompton Greeves) for copper FRLSH wiring and control system suitable for all meters,CTs,PTs,Relay,Microprocesser Card CGI14M show in meter (KW,KWh,KVh,KVARh,PF) and complete control fault (Earth fault,Overload,Short ciricut tripping) suitable for 11 KV,630 Amp VCB (Sr. No. 58271VG Make: Crompton Greaves) as per Directed by Engineer-in-Charge

Dismantling and Taking out unserviceable Insulators any type from cross arms/pole etc

Repairing and servicing (Oiling and greasing) of gang operated switch 11KV vertical/Horizontal mounted and replacement of U/S spare parts as required for smooth functioning of AB switch, testing for its proper operation, all as directed at site.Note :-(a) Oil and greas include in quoted rate. (b) Supply of spares shall be measured and paid separately.

Supply only following items for 11KV gang operated air break switch :- Male Contact/moving contact Blade heavy duty high conductive metal cap 200/400 amp 11 KV

Supply only following items for 11KV gang operated air break switch :-Female Contact/Fix contact Jaw heavy duty high conductive metal cap 200/400 amp 11 KV

Supply only following items for 11KV gang operated air break switch :-Tinned copper flexible jumper 200/400 Amps

Supply only following items for 11KV gang operated air break switch :-Drop out fuses 3 phase, 2 post insulator per phase complete.

Supply only following items for 11KV gang operated air break switch :-Post insulator for 11 KV

S/F Single disc porcelain, vitreous white/brown insulator 255mm dia and 145mm height assembly for tension with tension clamps for conductor working pressure 11000 volts

S&F new aluminium conductor steel reinforced (ACSR) straining properly on insulators and binding with aluminium tape/binding wire connectors, PG clamps , jumpers etc complete of size 6/1 x 2.59 MM (Weasel ) (Note : 3% for sag , joints & jumpers shall be added in measurements)

S&F cross arms, bracings, supports, clamps and back plates fabricated from structural steel section including nuts, bolts , washers, welding, bending ( cold or hot ) drilling holes for bolts bent to any shape or size as indicated or directed inclusive two coat of alumunium paint over a coat of red oxide/zinc chromate primer including Taking down coss arms/ clamps/Nut bolts and Angle section etc from HT Pole any size complete all as specified and directed.

Supply and fix gang operated air break switches, triple pole, manually operated, mounted on insulators and steel frame, with operating mechanism worked from ground level horizontal type for rating upto 400 Amps, 11000 volts complete with GI operating pipe of heavy duty including Dismantling of existing defective HT 11 KV Gang operated air break switch complete all as directed

Supply and fix gang operated air break switches, triple pole, manually operated, mounted on insulators and steel frame, with operating mechanism worked from ground level vertical type for rating upto 400 Amps, 11000 volts complete with GI operating pipe of heavy duty including Dismantling of existing defective HT 11 KV Gang operated air break switch complete all as directed

Supply and fix drop out fuse assembly complete set of three with Insulator-06 Nos and connected accessories for 11000 V grade of 200 Amps capacity including taking down U/S DO fuse assmbly.

Supply & fix lightening arrestor, expulsion type complete with all fittings, transmission class, discharge capacity 65 KA with all connecting lead and fittings, horn gap and chocking soil suitable for maximum working pressure 11000 Volts including taking down existing U/S lightening arrestor complete all as directed

Suppy,laying in treches/ducts/encased in GI pipe/ fixed on pole connecting, jointing and testing cable XLPE insulated screend PVC bedded galvanised steel strip or wire armoured heavy duty electric power cable with multistranded aluminium conductor suitable for 11 KV grade of size 120 Sq mm X 3 core including taking down Old unservicable HT cable all as specified and directed

Excavation in trenches n. exc. 1.5Mtr width n.exc 1.5 Mtr in depth for laying of cables & foundation of poles, stay assembly and getting cut in any type of soil.

M & L for sand cushioning to PVC under ground cable with screened and washed sand and punning to provide a required cover complete all as specified and directed. Note :- Thickness after punning shall be considered for payment.

M/L for brick work with FLY ASH BRICKS(As Per IS-13757(1993) burnt clay fly ash building bricks), (OLD SIZE BRICKS) (duly marked HT cable) with width equal to the length of the brick laid dry & flat abutted with each other with gap between adjacent bricks not exc 10 mm over UG cable for protection and complete all as specified & directed.

Returning, filling in including spreading levelling , watering and well ramming in layers not exc. 25cm in any type soil

Removing of surplus excavated soil to a distance not exc. 50m and depositing where directed at a level not exc 1.5 Mtr above the starting point.

Boring of holes under road,pavement, hard standing by trench less technology using ultra sound technique and necessary machine including HDPE pipe of 100 mm dia suitable for 0.4 MPa working pressure.

M/L for GI pipe ( Light grade ) for protection of HT cable fixed to walls/ poles/road crossing including clamps complete of size 100 mm bore as specified and directed.

M&L Cable jointing kit for 11 KV (Earthed) grade cable for outdoor termination heat shrink type joint complete with jointing material and accessories suitable for 3 core XLPE armourend aluminium conductor cable of size 120-185 sqmm. Note :- Necessory excavation and earth work includ in qouted rate.

M&L Cable jointing kit for 11 KV (Earthed) grade cable for indoor termination heat shrink type joint complete with jointing material and accessories suitable for 3 core XLPE armourend aluminium conductor cable of size 120-185 sqmm. Note :- Necessory excavation and earth work includ in qouted rate.

M&L Cable jointing kit for 11 KV (Earthed) grade cable straight through termination heat shrink type joint complete with jointing material and accessories suitable for 3 core XLPE armourend aluminium conductor cable of size 120-185 sqmm. Note :- Necessory excavation and earth work includ in qouted rate.

Supply & errecting Cable path indicators for HT Cable made of CI plate fixed on MS angle iron size 40x40x5mm and 90 Cm long. and fixing in ground 60 Cm below ground level in PCC 1:3:6 type B-1 using 40mm grade stone aggregate of size 45x45x60cm . Cable path indicators shall be provided at distance of every 30 meters and at cable joints and turning of all cables and incorporated HT 11000 Volts on it. including PCC & earth work complete all as specified and directed.

Supply, filling & topping up by pouring the transformer oil to the existing transformer upto appropriate level (dielectric strength of the oil to be tested at site in presence of Engineer -in-Charge without any extra cost to the Govt and recorded the same)

Dehydaration/filteration of transformer oil of existing transformer installed at site with portable plant to improve the dielectric strength not less than 50 KV including testing of dielectric strength before and after dehydration at site.

Labour charges for repair to the transformer 63 KVA to 400 KVA at site by opening the top cover for carrying out repair such as replacement of HT side busing with rods, LT side bushing and rods, gasket, tap changer etc and reassembling after carrying out required repair in the transformer complete including testing and commissioning all as dierected by Engr-in-Charge. Note : (i) Replacement of U/S parts will be measured and paid separately under respective item of Sch `A` (ii) Labour charge for Replacement of U/S parts are deemed to be included in quoted rate.

M&L for disconnecting, lifting, loading and transportation of unserviceable transformer indoor/outdoor type 11000/433 Volts of capacity 63 KVA to 400 KVA from site to workshop for repair/rewinding and repair to the transformer by dismantling the top cover and removing unserviceable burnt LT/HT side coil from the core, rewinding the LT and HT side core complete with same size of copper wire in HT side and copper strip from LT side with suitable insulating materials, nuts, bolts, washers, gasket set etc, heating the new transformer winding in special heat chamber for demoisturising of LT/HT coil, connecting the LT/HT coils, filling the fresh transformer oil, re-assembling the transformer, transporting/shifting back the transformer at site after repairs, re-commissioning & testing, including applying two coats of synthetic enamel paint of approved paint after preparation of all external surfaces of transformer, complete, all as specified and directed by Engineer-in-Charge.(Note:- (i)The quoted rates shall deemed to include for the transportation, T&P, Labours from site to workshop and workshop to back at site after repairs, cost of gasket set, nuts, bolts, washers, etc. (ii) All other spares such as tap changer, copper wire & copper strip for rewinding, HT/LT side bushing, transformer oil & air breather assembly with silica gel shall be measured and paid for separately as “Supply only” under respective items of this Schedule.

Supply only the following items:-HT bushing porcelain with copper stud, nuts, bolts, washers, gasket, oil seal suitable upto 100 KVA Transformer.

Supply only the following items:- HT bushing porcelain with copper stud, nuts, bolts, washers, gasket, oil seal suitable for 125 to 400 KVA. Transformer.

Supply only the following items:- LT bushing porcelain with copper stud, nuts, bolts, washers, gasket, oil seal suitable upto 100 KVA Transformer.

Supply only the following items:- LT bushing porcelain with copper stud, nuts, bolts, washers, gasket, oil seal suitable for 125 to 400 KVA Transformer.

Supply only the following items:- Complete gasket set suitable for 63 KVA to 400 KVA transformer

Supply only the following items:- Copper winding wire / Copper strip of required size.

Supply only the following items:- Silica gel breather of suitable size with new silica gel breather

M&L for Danger notice plate of 1.6 mm thick mild steel sheet, vitreous enamelled white, with letters, figures and conventional skull and bones in signal red colour and fixed with M.S. clamps, bolts and nuts of approved size, for HT 25x 20 cm size complete all as specified and directed.

Supply & fixing in replacement of HT jumper existing single pole/two pole/four pole structure of transformer/over head line etc including colour code, PVC sleeves for 11 KV using winding of ACSR conductor (weasel) 11000 volts, including PG calmps, nut bolts, thimbles and washer etc including taking down Old unservicable jumper as requirement as per sitre as directed by Engr-in-Charge.

Surface dressing n.exc15 cm deep in soft/loose soil rough excavating of un even surfaces and filled up in low patches with scraped soil to give even and neat look surfaces by removing all vegetation hedges shrubs at various pump houses/sub stations all as directed by Engr-in-charge.

M&L for earthing complete as per electric plate No 3 of MES SSR Part-I with galvanised steel earth plate electrode 60x60cmx6.0mm thick burried directly in ground ( earth pit not less thanb 2.25 Mtr deep below ground level ) with top edge of the plate not less than 1.5 Mtr below normal ground level, connected to galvanised strip 32 x 6 mm earth lead by means of bolts, nuts, check nuts and wathers of GI or steel . Earthing strip shall be protected by galvanised iron pipe 40 mm bore light grade and connected to continous earth lead on pole/test point, Watering pipe shall be 20 mm bore GI medium grade. The unit rate quoted for earthing shall be inclusive of excavation and earth work in any type of soil, charcoal, salt, funnel, PCC pit and RCC cover complete all as specified and directed. Note :- (a) Irrespective of what is shown in drawings, the concrete pit shall be in PCC (1:3:6) type C-1 and 40 mm thick precast cover slab of RCC (1:2:4) type B-1, using 20 mm graded stone aggregate with suitable handle. (b) Item includes the cost of GI pipe for protection of earth lead /strip including earth lead upto 7.5 Mtr.

Writing letters or figures (Block, Roman, Italic or Indian ) not exceeding 30 cm high with synthetic enamel paint of approved colour and quality (Ist quality “Ashian “) with thick painting so that they stand out boldly and solidly without sign of brush mark, if necessary they shall be repainted until the desired results obtained and painting surface of any description over 10cm girth or width all as directed by Engr-in-Charge as per details as under :-i) Earth result sign board / SM/MES No.

M&L for painting of PCC pole any type/size by providing yellow and black paint with 30 cms alternate strip upto 1.2 m height from ground level including writing of pole number in synthetic enamel paint including painting to cross arm, clamps, channels etc with one coat of aluminium paint including preparation of surface all as directed by Engineer-in-Charge for the following :- (a) HT Two pole structure

M&L for painting of PCC pole any type/size by providing yellow and black paint with 30 cms alternate strip upto 1.2 m height from ground level including writing of pole number in synthetic enamel paint including painting to cross arm, clamps, channels etc with one coat of aluminium paint including preparation of surface all as directed by Engineer-in-Charge for the following :-(b) HT Four Pole structure

Painting of transformer of 63 KVA to 200 KVA capacity applying two coat of synthetic enamel paint of grey colour by spray painting complete including preparation of old surfaces, removing,cleaning of oil, grease all as specified and directed by Engineer-in-Charge of following:- Note :- MES No. and SM No. on equipment with type and colour of paint all as specified and directed by Enge-in-Charge.

Painting of transformer of 250 KVA to 400 KVA capacity applying two coat of synthetic enamel paint of grey colour by spray painting complete including preparation of old surfaces, removing,cleaning of oil, grease all as specified and directed by Engineer-in-Charge of following:- Note :- MES No. and SM No. on equipment with type and colour of paint all as specified and directed by Enge-in-Charge.

Findout the location for faulty HT cable of any size by using HT cable fault locator for jointing the straight through termination complete all as directed by Engr-in-Charge. Note:- (i) Excavation and earth work shall be deemed to be included in quoted rates (ii) straight through termination required for replacement, shall be measured and paid under the relevant item. (iii) The contractor should rectify the defects within 48 hours from the time of information. If contractor failed to rectify the defects within 48 hours, then the recovery will be made against the contractor @ Rs.1000/- per day for delay period.

ALAKNANDA ENTERPRISES

DEMROT ELECTRICAL WORKS

M/s Yash Electrical and Maintenance

Shiv Enterprises

JS Power Solutions Private Limited