REPAIR / MAINTENANCE OF VCBS SERVICING / CALIBRATION OF RELAYS, REPAIR / REPLACEMENT OF HT INSTALLATIONS AND ITS SUPPLY SYSTEM,11 KV VCBS SERVICING, JOINTS, INSULATORS POLES AND CONNECTED WORKS AT RUPA AND DAHUNG UNDER PH-II AND PH-I RESPECTIVELY

Amount

Excavation in trenches in any type of soil not exc 1.5 mtrs wide and not exc 1.5 mtr in depth for laying of pipe/ cables/ poles etc and getting out hard & densile soil complete all as specified and as directed.

Excavation in trenches in any type of soil not exc 1.5 mtrs wide and exc 1.5 mtr in depth for laying of pipe/ cables/ poles etc and getting out complete all as specified and as directed.

Returning fitting in any type of soil including spreading leveling watering and well ramming in layers n.exc 25 cm complete all as specified and as directed.

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

M & L for laying of fine, clean sand (river sand) free from sharp materials and stone particals in trenches for cushioning of cable 8 cm thick under cable and 15 cm thick over the cable including gently punning complete all as specified and directed. Note:- The total thickness of sand shall be measured 18 cm after punning.

Supply and laying un-reinforced precast.concrete cable protection cover of class HV, type-1, flat size 300 mm x 180mm x 40 mm/LV type-1 flat of size 250 x 150 x 40 mm, casted with PCC 1:3:6 of specified make , complete all as specified and directed.

Supply and laying galvanised tube light grade ISI marked of size 100 mm dia incl all fittings in trenches/fixed on pole/wall/floor or laid in position complete all as specified and directed.

M & L for road cutting incl necessary excavation 45 cm wide and 90 cm in depth as in trenches in any type of soils/rock for laying LT UG cable through pipe after laying /through the cable trenches will be filling top with M&L PCC 1:3:6 type C-1 using 20 mm grdaeds stone aggregates from top over 15 cm thick hard good of broken boulders , 63 mm gauge over 15 cm bolders 100 mm dia over filled and rammed earth to make good the disburbed surface etc complete all as specified and directed.

M & L for earthing complete with galvanized steel earth plate electrode 60 x 60cm x 6 mm thick burried directly in ground vertically to a depth not less than 2.25 mtr deep below GL with top edge of the plate not less than 1.5 mtr below normal GL and connected to earth plate . Earth plate surrounded by 15 cm thick packed layers of charcoal dust and common salt upto 1.5 meter depth all around the earth plate and connected to earth lead of GI strip 32x6 mm by means of bolts, nuts, check nuts and washers of galvd iron or steel and thimbles and other end of the earth lead connected to equipments and watering pipe 20mm bore GI medium grade with funnel and wire mesh, including all necessary excavation and earth work PCC chamber in cement concrete 1:3:6 type C-2 and RCC cover and testing of earthing complete and all as shown in electrical plate No 3 of MES schedule Pt I of 2009 .

M&L earthing complete with copper earth plate electrode 600mm x 600mmx3.15mm thick,thick burried directly in ground vertically to a depth not less than 2.25 mtr deep below GL with top edge of the plate not less than 1.5 mtr below normal GL and connected to earth plate . Earth plate surrounded by 15 cm thick packed layers of charcoal dust and common salt upto 1.5 meter depth all around the earth plate and connected to earth lead of copper strip 20 x 3.15 mm by means of bolts, nuts, check nuts and washers of GI or steel and thimbles and other end of the earth wire connected to DB and protected by galvanized iron or steel pipe light grade 40 mm bore and water pipe 20mm bore GI medium grade with funnel and wire mesh, including all necessary excavation and earth work PCC chamber in cement concrete 1:3:6 type C-2 and RCC cover and all as shown in electrical plate No 3 of MES schedule Pt I of 2009 and also including making test point for testing of earthing made out of gun metal or phosphorous bronge size 75x75x25 mm complete all as specified and directed.

M&L for PCC 1:4:8 type D-2 (using 40mm graded stone aggregates) as in foundation filling for erection of pole and mass concrete for poles all as specified and directed by Engr-in-Charge.

M&L for PCC 1:3:6 type C-2 (using 40mm graded stone aggregates) as in foundation filling for erection of pole/fncing post/stay and mass concrete including form work for poles all as specified and directed by Engr-in-Charge.

M&L for PCC 1:2:4 type B-1 (using 20mm graded stone aggregates) as in coping etc including form work for poles all as specified and directed by Engr-in-Charge.

M&L for disconnecting power supply from HT VCB /OCB/RMU of capacity 33 KV for repair works , taking out trolly unit & complete servicing of the VCB through decarbonising , cleaning the male /female isolating contacts, lubricating moving part , cleaning with CRC removing dust particles from bus bar chamber, spout gear mechanism and moving parts, repair to motor charge spring mechanism, tightening all nuts and bolts of entire trolley , checking proper operation of trolly including checking of all electrical parts and replacing all unserviceable part , inserting trolley inside and testing on load complete all as specified and directed .

M&L for disconnecting power supply from HT VCB /OCB/RMU of capacity 11 KV for repair works , taking out trolly unit & complete servicing of the VCB through decarbonising , cleaning the male /female isolating contacts, lubricating moving part , cleaning with CRC removing dust particles from bus bar chamber, spout gear mechanism and moving parts, repair to motor charge spring mechanism, tightening all nuts and bolts of entire trolley , checking proper operation of trolly , inserting trolley inside and testing on load complete all as specified and directed . Make of HT VCB/RMU /OCB are Crompton/ABB/C&S

M&L for servicing ,calibration of all type control relays such as digital earth fault/over current relay , IDMT relay , master trip relay other Aux relays , etc fixed on 11 KV VCB/OCB/RMU for over current and earth fault settings with all respects and making all tripping setting, time delay setting , for smooth functioning of all controls of HT panel including servicing of CTs , PTs , testing with primary injection test kit for load settings and timings of relays , setting tripping and closing of VCB/RMU/ SF-6 breakers complete all as specified and directed .

M & L for disconnecting & taking out old/defective Current Transformer from 11 KV VCB panel, indoor, resin cast epoxy type of 18.4 KA/Sec having ratio 100/5+5 Amps or 60/5+5A or 30/5+5A suitable for metering and protection equipment installed on control panels including connection with control cables as per site requirement upto control panels terminals block and fixing on bus bar section having class of accuracy 5P 10 burden 15 VA Make : Kapco/Jyoti/CG or as per site requirement. Make :- Crompton/ABB/Jyothi

M & L for disconnecting & taking out old/defective PT from 11 KV VCB panel, S & F installation & testing of PT, indoor, comprising of three limbs single phase resin cast PTs of 11KV/110 Voltage ratio, 50 Hz type 200VA class-I accuracy suitable for protection & metering incl making suitable arrangement for fixing in existing VCB panel and connection complete all as specified and directed. Make :- Crompton/ABB/Jyothi

Supply & fix in replacement digital four pole non directional microprocessor based 3 over current + 1 Earth fault with instantaneous trip relay with high set , Aux. supply 20-110 volt DC and setting of time delay, overload and earth fault model MC 61C of Make L&T or equivalent models of ABB/Siemens / Ashida /CG complete with all connection and testing on load including fabrication works to HT panel for fixing of new relay and wiring connection as directed and specified Make :- CG/Ashitha/Kappa

S & F in replacement of vacuum interrupter , suitable for 11 KV HT V.C.B 11 KV 630 /800 Amps capacity cat No. 520/SP of Make Crompton/ABB/L&T all as specified and directed.

S & F in replacement fixed contact block of V.C.B 11 KV 630/800 Amps capacity cat No. 522/SP Make Crompton/ABB/&T/C&S /Jyothi or as per existing design approved by GE all as specified and directed.

S & F in replacement moving contact block of V.C.B 11 KV 630 /800 Amps capacity cat No. 524/SP Make Crompton/ABB/&T/C&S /Jyothi or as per existing design approved by GE all as specified and directed.

S & F in replacement motor & gear assembly 220 Volt AC motorised mechanism of V.C.B 11 KV 630/800 Amps capacity including testing & puting on load cat No. 537/SP Make Crompton/ABB/&T/C&S /Jyothi or as per existing design approved by GE all as specified and directed.

S & F in replacement closing coil assembly 24/ 110 volts DC for HTV.C.B 11 KV 630/800 Amps capacity cat No. 594/SP Make Crompton/ABB/&T/C&S /Jyothi or as per existing design approved by GE all as specified and directed.

S & F in replacement tripping coil assembly 24 / 110 volts DC for HT V.C.B 11 KV 630/800 Amps capacity cat No. 599/SP Make Crompton/ABB/&T/C&S /Jyothi or as per existing design approved by GE all as specified and directed.

S & F in replacement auxillary switch (6 No + 6NC) for HT V.C.B 11 KV 630/800 Amps capacity cat No. 562/SP Make Crompton/ABB/&T/C&S /Jyothi or as per existing design approved by GE all as specified and directed.

S & F in replacement contact plug 630/800 Amps for HT V.C.B 11 KV 630/800 Amps capacity cat No. 580/SP Make Crompton/ABB/&T/C&S /Jyothi or as per existing design approved by GE all as specified and directed.

S & F in replacement big cam with main shaft for HT V.C.B 11 KV 630/800 Amps capacity cat No. 568/SP Make Crompton/ABB/&T/C&S /Jyothi or as per existing design approved by GE all as specified and directed.

S & F in replacement motor & gear assembly 220 Volt AC motorised mechanism of V.C.B 33 KV 630 Amps capacity including testing & puting on load cat No. 537/SP Make as per existing design approved by GE including testing commissioning all as specified and directed. Note: The quoted rate also includes cost of spres required for commissioning of 33 KV VCB .

M&L for cleaning of electric substation/installations including cutting/removing of grass, bushes and trimming of branches of trees inside the premises and also roemoving from the substation premises complete all as specified and as directed. If the contractor has fails to clean the substation after intimation throgh telephonically and followed through letter with in 48 hours a penality of Rs 10/sqm per day will be charged from his dues.

M&L for cutting of tree branches upto 3 mtr away from the HT over head line including removing and disposal of cut branches outside the Cantt land complete all as directed. The Span of OHelectric line will be 40 - 50 mtr. Necessary T&P, man power and transport will be arranged by contractor without any extra cost. Necessary electric line shut down must be taken before trimming/cutting tree branches by contractor. Any lapse/incident happened due to negligence resulting loss to man and material will be responsibility of contractor & no any claim in this regard will be admissible to the dept.

S & F in replacement of 33 kv silicon polymeric post insulator, including one galvanized mild steel spindle two galvanised iron washers and one galvanised iron nut,33000 volt grade suitable for working pressure 35 KV as per IS 731/1971 or latest amendment complete all as specified and directed .

S&F in renewal of breather assembly 1 Kg of 11/.433 KV stepdown transformer by replacing old breather assembly with new one including fixing in proper manner for transformer as specified & directed.

S&F in renewal of breather assembly 5 Kg of 33/11 KV stepdown transformer by replacing old breather assembly with new one including fixing in proper manner for transformer as specified & directed.

ON load centrifuging and dehydration including filtration and cleanning of transformer oil by dehydration machine electric operated without any shutdown of transformer including testing oil sample before and after dehydration and dehydration and filtration oil as specified and directed. Note :- (i). Dielectric strength of oil after dehydartion shall be more than 45 KV at 2.5 mm gap on load (ii) Transformer oil required for top up shall be measured and paid separately. (iii) Contractor have to arrange the dehydration machine and testing kit from his own resources without any extra cost. (iv) The work will be carried at different locations in cantt area. Neceaary transport arrangement for shifting machine from one place to another to be arranged by contractor and cost of same to be included in unit rate.

Supply and filling Transformer oil confirming to IS-335 (as in toping up or replacement) of 50 KV breaking capacity complete all as specified and as directed. Note :- The work will be carried at different locations in cantt area. Neceaary transport arrangement for shifting machine from one place to another to be arranged by contractor and cost of same to be included in unit rate.Contractor will bring new transformer oil in sealed container and cost of same shall be included in unit rate.

Supply, erecting and fixing in replacement of true vertical position, steel tubular swaged pole (410 SP-31) 11.0 mtr long, complete with cast iron base plate, pole cap / finial taper plug, bolts, nuts and washers, welded reduced section and longitudinal weld throughout entire length of pole including 2 coats of black bituminous paint externally upto planting depth and remaining exterior portion of pole shall be provided with two coats of aluminium paint over one coat of red oxide primer and incl taking down existing old unserviceable poles complete all as specified and directed. (Numbering of the poles shall be done with synthetic enameled painted letter of shape & size as directed.) Note :- Excavation incl earth work and PCC foundation will be measured and paid separately.

M&L in replacement of switch air break gang operated triple pole mechanically operated mounted on HT insulators (12 insulator type) and MS galvanised steel frame with operating mechanism worked from ground level incl operating rod and operating handle with 11 KV insulation for current rating up to 200 Amp 11000 volts complete.

S & F in replacement in replacement of 11 KV Silicon polymeric composite Disc insulator B&S type incl galvanised mild steel strap 38 mm X 5 mm, insulator bolts 20 mm dia with suitable washers and nut, suitable for working pressure upto 12 KV as per IS 731/1971 or latest amendment complete all as specified and directed.

S & F in replacement of 11 kv silicon polymeric pin insulator, including one galvanized mild steel spindle two galvanised iron washers and one galvanised iron nut,11000 volt grade suitable for working pressure 12 KV as per IS 731/1971 or latest amendment complete all as specified and directed .

M&L in replacement for aluminium conductor, steel reinforced ACSR of any size/description on HT poles/lines incl stringing, tightening, binding to insulators with aluminium wire making and connecting jumpers, connections etc incl connecting, commissioning and testing complete all as specified & directed.

Material and labour in replacement of Cross arms, bracings, 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 primer coat, one under coat and one finishing coat of paint complete all as directed by Engineer-in-Charge.

S & F incl stringing GI continuous GI earth wire of size 4 mm / 3.15 mm dia on HT/LT poles as in cradle guards / earth wires, binding including taking down complete all as specified & directed.

M&L for stay assembly of MS galvanised stay plate 230mm X 230mm X 6mm thick MS galvanised tay rod 20 mm dia with nut 100 cm long MS galvanised stay bow 40 cm long and 14 mm dia with 2 Nos galvanised thimble with and incl all fittings all as specified in SSR 2009 Part I icomplete all as specified and directed. Note - Excation, earth work, PCC foundation etc, loop type insulator shall be measured and paid separately.

M&L for galvanised stay strand 7/ 4 mm complete all as specified and directed.

M & L for loop type insulator large size with overall demensions 140 mm clearance of hole 25.5 mm complete all as specified and as directed.

Supply, installation, testing and commissioning in replacement of air brake off load isolator horizontal type switch rotating type manually operated highest system voltage 36 KV rated current 600 Amps triple pole ,each pole consist of insulating pedestals 03Nos. on galvanized steel base as per BSS/IS including rotating blade of HDE copper and fixed contacts of same material , spring loaded arcing horns of adequate section to brake magnetizing current of transformer , inulation level 36/70/170 KVp operation from ground level and operating handle for operation complete with both Off and On positions including provision of mechanical locking arrangement. Makes GR Power Switch Ltd/ PACTIL /Siemens/jaipuria brothers

Supply, fabrication, fixing RS joists & MS work like, MS channel, cross arms bracings, angle, flat irons, cutting, welding for 33 KV switches yard gantry and other works as per site requirement including Nut, bolts, washers, necessary welding work and two coats of aluminium paint (ready to use) over a coat of red oxide primer complete all as specified & directed.

Supply, laying & testing of cable XLPE insulated, screened, PVC bedded, galvanized steel strip or wire armoured, electric power cables (heavy duty)with stranded aluminium conductor, 11000 volts grade, of size 3 core 95 sq mm make : Havells/KEI/Polycab

Supply and fix 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 armoured Aluminium conductor cable of size 95 sqmm complete all as specified and as directed.

M/S KUNKAPU ENTERPRISES