81057 Repair Maint of Hight Tension Electrical Line alongwith allied fixture under AGE EM No.I Under GE Minniebay

Amount

Excavation in trenches n.exc 1.5mtr wide and not exc 1.5mtr depth and getting out in soft/loose soil all as directed.

All as per item No 1here in before but exc 1.5 mtr or part there of in depth beyond 1.5 mtr depth.

Returning and filling in of excavated soil including spreading,levelling,watering and well ramming in layers not exceeding 25 cm each.

Removal of surplus soil not exceeding 50 mtr and depositing where directed at a level not exceeding 1.5 mtr above the starting point.

Dismantling damaged /unserviceable concrete poles/ struts, any size complete.

Supply and erection in vertical position Steel tubular swaged poles complete with cast iron base plate, finial taper plug, bolts, nuts and screws, type 410 SP-55 (11.0 metres long) all as specified duly painted with two coats of black bituminous paint internally through out and externaly for embeded portion and painting with one coat of red oxide primer, applying two coats of synthetic enamel aluminium paint on remaining exposed surfaces after errection complete, painting with synthetic enamel paint of colours black and red alternate strips of 30cm width upto 1.5 mtr from the top of coping complete including making suitable holes where required all as specified and directe. Note : PCC in foundation, coping, Earth work ( Excavation, Returning & refilling and removal) will be measured and paid separately under relative items of Sch 'A'.

M&L for Plain cement concrete (1:4:8) type D-2 (Using 40 mm graded crushed stone aggregate) as in foundation for poles mass concretes or in any indicated positions etc complete all as specified

M & L for Plain cement concrete (1:2:4) type B-1 (Using 20 mm graded stone aggregate) for coping of pole complete all as specified

Dismantling unserviceable cross arms including clamps, bolts, nuts, washers etc from pole.

Supply, fabricate and fix cross arms any size along with, brackets, clamps, bolts, nuts, washers, bracers etc including drilling holes, cold/hot complete and fixed to pole including one primer coat and one under and finishing coat of paint.

Dismantlin of ACSR conductor of any size, from insulator etc from the structure/over head line all as directed.

M&L replacement of ACSR conductor of any size as ordered by Engr-in-charge including tightening and bindingh with new binding wires to insulators all as directed.

M&L pin type insulator vitreous, white, brown, or green insulator includig one galvanised mild steel spindle, two galvanised iron washers and one galvanised iron nut 150 mm height, 150 mm dia for 11000 volts grade.

S&F disc type insulator, porcelain, vitreous 145 mm high and 255 mm dia ball and socket type white, brown or green, single disc assembly for tension with tension clamps for conductors, working pressure 11000 Volts

S&F Pin type, composite silicon rubber polymeric type insulator 165 mm height, 100mm dia for 11000 volts grade, 5 kN with ECR glass rod, forged steel top and bottom, silicon rubber housing and weather sheds, including one galvanized mild steel spindle, galvanized iron washer, spring and one galvanized iron nut all as specified and as directed including taking down existing unserviceable insulator.

S&F disc type insulator, composite silicon rubber polymeric type 200 mm height, 100mm dia for 11000 volts grade, 45 kN with ECR glass rod, forged steel tongue and cleaves, silicon rubber housing and weather sheds all as specified and as directed including taking down existing unserviceable disc type insulator.

Dismantling insulators any type, size

M&L anti climbing device, spikes type fabricated out of MS bars (round/square/flat) including nuts,bolts, washers and welding in two halves made to shape to suit the cross section of the pole including dismantling old one.

S&F 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 MS clamps,bolts, nuts of approved size for HT 25x20 cm size including dismantling old one.

Dismantling air break gang operated switches triple pole vertical/ horizontal mounted including isulators and opretaing mechanism for replacment all as directed.

Supply , install, testing and commissioning of HT 11 KV Switch air break, gang operated, triple pole , mechanically operated, mounted on miniumum 9 insulators of any type as directed and MS channel frame, with operating mechanism made out of 25 mm dia GI medium grade pipe suitable for operation from ground level with locking arrangement complete for current rating 200 Amps complete all as specified and directed by Engr-in-charge.

Taking down old DO fuse unit S &F expulsion fuse single phase above 50 & up to 100 AMPS capacity, 11000 Volts with insulators of any type.

Taking down existing unserviceable Lightning arresetor and S&F HT lightening arrestor metal oxide type (gap less) heavy duty single pole for 11 KV overhead line/ 4 pole/2 pole structure, suitable for 12 KV rated highest system voltage, long duration distribution discharge class type, IP 55 Degree of protection, 100(kVp) at 65 kA High current impulse withstand voltage and 9 KV Arrestor rating with normal discharge current of 10 KA complete with all fittings conforming to IS: 3070 part-3 effectively connected with earthing system complete all as specified and directed by Engr-in-Charge. Note:- Manufacturer's Test certificate for lighting arrestor shall be produced before claiming for payment.

M&L for fixing in repairs 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 etc. as required with galvanised iron strip 32x6 mm including dismantling old one. .

M&L for fixing in repairs 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 etc. as required with 4mm dia galvanised iron or steel wire including dismantling old one.

Material and labour earthing with steel earth plate electrode of size 60x60cmx6mm thick buried directly in ground to a depth not less than 2.25 mtr deep below normal ground level with top edge of the earth plate not less than 1.5 mtr deep below normal ground level connected to galvanized iron strip of size 32x6mm as earthing lead by means of nuts, bolts and washers of steel after welding of GI strip to earth electrode to the full length of earth plate, GI medium grade pipe 40 mm bore protection pipe upto test point, 20mm dia GI light grade watering pipe with funnel and wire mesh, RCC pit cover of size 300x300x40mm reinforced with XPM having weight not less than 4Kg/sqmm including 6mm thick MS bar handle made to shape, PCC pit with 1:3:6 type C1 with angle iron frame made of angle iron of size 40x40x4mm, adequate qty of charcoal dust and salt layers all around the earth plate, excavation , earth work in any type of soil, removal of excavated soil and returning filling in all as required at site complete all as specified in plate No 3 of SSR Part-I and all as specified or indicated including testing on completion. NOTE :-Rates inclusive of necessary excavation in any type of soil, earth work, PCC pit, RCC cover, funnel with watering pipe, GI earth strip upto 7.5 m long for connecting to test point etc. all as required at site for complete earthing and dismantling old defective earthpit.

Earthing complete with galvanized steel earth plate electrode 60cmx60cmx6 mm thick buried directly in ground (Earth pit not less than 2.25 Mtr deep below normal ground level )with top edge of the plate not less than 1.5 Mtr below normal ground level connecting with galvanized iron GI earth wire 4mm dia by means of bolt nut check nuts and washers of galvanized iron and provision of GI tubing medium grade (ISI marked)of size 15mm for protection of GI earth wire upto test point, 20mm dia GI light grade watering pipe with funnel and wire mesh, RCC pit cover of size 300x300x40mm reinforced with XPM having weight not less than 4Kg/sqmm including 6mm thick MS bar handle made to shape, PCC pit with 1:3:6 type C1 with angle iron frame made of angle iron of size 40x40x4mm, adequate qty of charcoal dust and salt layers all around the earth plate, excavation , earth work in any type of soil, removal of excavated soil and returning filling in all as required at site complete all as specified in plate No 3 of SSR Part-I and all as specified or indicated including testing on completion. NOTE :-Rates inclusive of necessary excavation in any type of soil, earth work, PCC pit, RCC cover, funnel with watering pipe, GI earth strip upto 7.5 m long for connecting to test point etc. all as required at site for complete earthing) and dismantling old defective earthpit.

Supply ,laying , testing & commissioning of HT UG cable, XLPE insulated screened PVC bedded, galvanised steel strip or wire armoured, electric power cable(heavy duty) with stranded aluminium conductor 11 KV grade (Earthed system cable) as per IS 7098 Part-II, of following sizes all as directed including dismantling old one. Note:- (a) Earth work ( Excavation, Returning & refilling and removal), sand cushioning, concrete cable covers,GI pipe protection for road crossings, HT termination joints will be measured and paid separately.

3 core 185 Sqmm

3 Core 95 Sqmm

3 Core 120 Sqmm

M&L cable jointing kit for 11 KV (Earthed) grade XLPE cable for outdoor end termination cold shrinkable type joint complete with jointing material and accessories suitable for following sizes including testing after jointing complete all as directed. Note:- Earth work ( Excavation, Returning & refilling and removal), sand cushioning, concrete cable covers,GI pipe protection will be measured and paid separately.

3 core 120 sqmm to 185 sqmm

3 Core 50 sqmm to 95 sqmm

M&L cable jointing kit for 11 KV (Earthed) grade XLPE cable for Indoor end termination cold shrinkable type joint complete with jointing material and accessories suitable for 3 core 120 sqmm to 185 sqmm XLPE cable including testing after jointing complete all as directed. Note:- Earth work ( Excavation, Returning & refilling and removal), sand cushioning, concrete cable covers,GI pipe protection will be measured and paid separately.

M&L cable jointing kit for 11 KV (Earthed) grade XLPE cable for Indoor end termination cold shrinkable type joint complete with jointing material and accessories suitable for 3 core 50 sqmm to 95 sqmm XLPE cable including testing after jointing complete all as directed. Note:- Earth work ( Excavation, Returning & refilling and removal), sand cushioning, concrete cable covers,GI pipe protection will be measured and paid separately.

M&L cable jointing kit for 11 KV (Earthed) grade XLPE cable for outdoor straight through cold shrinkable type joint complete with jointing material and accessories suitable for following sizes including testing after jointing complete all as directed. Note:- Earth work ( Excavation, Returning & refilling and removal), sand cushioning, concrete cable covers,GI pipe protection will be measured and paid separately.

3 core 120 sqmm to 185 sqmm

3 Core 50 sqmm to 95 sqmm

M&L cable jointing kit for 11 KV (Earthed) grade XLPE cable for outdoor end termination heat shrinkable type joint complete with jointing material and accessories suitable for following sizes including testing after jointing complete all as directed. Note:- Earth work ( Excavation, Returning & refilling and removal), sand cushioning, concrete cable covers,GI pipe protection will be measured and paid separately.

3 core 120 sqmm to 185 sqmm

3 Core 50 sqmm to 95 sqmm

M&L cable jointing kit for 11 KV (Earthed) grade XLPE cable for Indoor end termination heat shrinkable type joint complete with jointing material and accessories suitable for 3 core 120 sqmm to 185 sqmm XLPE cable including testing after jointing complete all as directed. Note:- Earth work ( Excavation, Returning & refilling and removal), sand cushioning, concrete cable covers,GI pipe protection will be measured and paid separately.

M&L cable jointing kit for 11 KV (Earthed) grade XLPE cable for Indoor end termination heat shrinkable type joint complete with jointing material and accessories suitable for 3 core 50 sqmm to 95 sqmm XLPE cable including testing after jointing complete all as directed. Note:- Earth work ( Excavation, Returning & refilling and removal), sand cushioning, concrete cable covers,GI pipe protection will be measured and paid separately.

M&L cable jointing kit for 11 KV (Earthed) grade XLPE cable for outdoor straight through heat shrinkable type joint complete with jointing material and accessories suitable for following sizes including testing after jointing complete all as directed. Note:- Earth work ( Excavation, Returning & refilling and removal), sand cushioning, concrete cable covers,GI pipe protection will be measured and paid separately.

3 core 120 sqmm to 185 sqmm

3 Core 50 sqmm to 95 sqmm

M & L for good quality dry sand cushioning to under ground electric cable on layer of 8 cm thick before laying the cable and second layer of 15 cm thick after laying the cable all as specified in clause 19.75 of MES Schedule part-I (2009) Note : Sand shall be fined sand as specifed and punned thickness shall be measured and paid.

Supplying and laying un-reinforced precast concrete cable cover factory made as per IS 5820-1970, class HV, type 1, size 300mm x 180mm x 40mm.

Supply and lay GI tubes light grade galvanised with all fittings laid in trenches etc for protection of cable of following sizes:-

80 mm dia bore

100 mm dia bore

Demolition of cement concrete of any type

M&L for repair and servicing of HT 11 KV RCC/PCC/Steel tubular type four pole structure by replacing galvanized PG clamps, GI bolts and nuts, pieces of ACSR conductor with insulation of any size as jumpers including lubricating the moving parts of AB switch and cleaning of all disc /pin insulators and applying silicon compound for prevention of arcing due to dust/ salt deposits over the surfaces including applying one coat of zinc oxide primer on rusted portions after preparation of surfaces & a coat of aluminum paint to the entire steel structure complete all as directed. Note:-Rate quoted shall be inclusive of paiting of steel structure, two coats of white wash on exposed concrete surfaces/PCC/RCC poles, ACSR conductor for jumpering, GI hard ware like nuts, bolts etc complete

M&L for repair and servicing of HT 11 KV RCC/PCC/Steel tubular type two pole structure by replacing galvanized PG clamps, GI bolts and nuts, pieces of ACSR conductor with insulation of any size as jumpers including lubricating the moving parts of AB switch and cleaning of all disc /pin insulators and applying silicon compound for prevention of arcing due to dust/ salt deposits over the surfaces including applying one coat of zinc oxide primer on rusted portions after preparation of surfaces & a coat of aluminum paint to the entire steel structure complete all as directed. Note:-Rate quoted shall be inclusive of paiting of steel structure, two coats of white wash on exposed concrete surfaces/PCC/RCC poles, ACSR conductor for jumpering, GI hard ware like nuts, bolts etc complete

Cutting /trimming tree branches along the over HT/LT installations up to 3.0 mtr from electric line / equipment on both sides of the span and disposing of the cut tree-branches at places as directed by Engr-in-charge. Note : (i) Necessary permission will be obtained from department by contractor one day prior to trimming in particuar area and shut down of that area shall be arranged by department. (ii) The tree cutting of 4 pole or 2 pole structure shall be maintained for whole period of contract and the payment shall be made once in entire Contract period only. (iii) Each installation/yard will be measured as one Job. (iv) Contractor shall visit site for ascertaining exact job to be carried out before quoting.

M & L for Cutting the tarmac / hard standings and excavating in trenches across the road for laying cable including making good the excavated portion by means of PCC 1:3:6, type C1 matching with the surroundings all as directed.

Material & labour for fixing in repairs Stay assembly complete with accessories such as MS stay plate of size 300mmx300mmx6mm thick, stay rod 20mm dia, stay bow, nuts, bolts and check nuts of GI including GI stay strand of size 7/4 mm all as shown in electrical plate No. 1 of SSR Part-I of 2009 or directed by Engr-in-charge. Note: Earth work ( Excavation, Returning & refilling and removal), PCC, stay clamp and loop type insulators will be measured and paid separately under relevant schedule items).

M & L for Plain cement concrete (1:3:6) type C-2 (Using 40 mm graded stone aggregate) as in foundation filling and mass concrete for stay complete all as specified

M&L for detecting HT UG cable faults located in any stretch/ depth with sophisticated cable fault locator consisting of microprocessor based pre-locator system, HV surge generator of capacity upto 16 KV, fault pin point surge wave reciever, cable indentification instrument, cable tracer for exact location of under ground cable routes. Note: The rate quoted deemed to be inclusive of transportation of equipment from any location and charges for service engineer for identifying the fault including their boarding & lodging complete.

M/L for strip opening the metering cubicle of HT panel of rating 11 KV, 3 phase comprising of following repairs, inspecting, overhauling and servicing/ re-fixing of the spares etc complete all as directed:

a) Dismantling the complete instrument chamber/ HV cable box/LV cable box .Decarbonising/ cleaning the complete HT 11 KV 3 phase independent bus bar, bus bar chamber of HT panel and inspecting the bus bar insulators. b) Checking, inspecting the Numeric/ microprocessor/IDMT relays, multifunction meters/energymeters, ammeters and voltmeters for their serviceability and functionality etc complete. c) Checking complete electrical tripping circuit of HT panel including control wiring from secondary system rotary to tripping coil, auxiliary switch male and female housing cut out, etc. and wiring including replacement of damaged wire at places including operation on DC system, testing and commissioning complete all as directed. d) Inspection of CTs and PTs if any. Replacing the defective CT/PTs incl accuracy in checking of the CT wiring including identification to the base and connecting links to main switchcomplete all as directed by Engineer -in- Charge.

Disconnect and taking out the Numeric/ Microprocessor based relay/IDMT relay of any type of any Make from 11 KV HT panel, cleaning the contacts, calibrating the relay by conducting secondary injection tests, checking of current transformer, rectification of defects in control wiring for proper tripping of circuit breakers through CTs and relay and tripping coils, adjustment/setting to plug and time multiplier settings of the relay to achieve the descrimination in tripping, tune/synchronise upstream breaker relay settings, re-installation of relay, testing & commissioning etc complete all as specified and as directed.

Note-1: The Contractor has to arrange necessary testing Kits, testing equipments, tools etc and shall also submit detailed test reports, panel wise, duly spiral bound. Rental rates for the testing/calibration kits & connected equipments are deemed to be included in the quoted rate. Testing & tuning shall be carried out in the presence of representative of the Department, to the satisfaction of the Department. Note-2: Repair work shallbe carried out in VCBs mentioned in Appendix 'A' to Particular Specifications

S&F in repair Master Trip Relay suitable for 11 KV HT panel for protection system. Make: ABB/ Siemens/Areva/ALSTOM/CG /Schneider/Easun

S&F in repair DC Supervision Relay suitable for 11 KV HT panel for protection system. Make: ABB/ Siemens/Areva/ALSTOM/ CG/Schneider/Easun

S&F in repair Auxiliary Relay suitable for 11 KV HT panel for protection system. Make: ABB/ Siemens/Areva/ ALSTOM/CG/Schneider/Easun

Taking down HT switch gear (Vacuum circuit breaker ) of capacity 11 KV 250/350 MVA of Make:Kirloskar/ABB/Alstom /CG comprising of following repairs, overhauling, servicing and refixing the same after repairs/ overhauling: Note: Repair work shallbe carried out in VCBs mentioned in Appendix 'A' to Particular Specifications

(a)Tripping off the breaker, lowering the breaker with raising/ lowering handle and pulling out the breaker complete from the panel along with the trolley for servicing/inspection/overhauling. (b) Servicing/Inspecting/checking of automatic safety shutter operation for serviceability and replacement of spares if required. (c) Servicing/Inspecting/checking of circuit spout and bus bar spout connections for RYB phases and replacement of spares if required. (d) Dismantling and checking of cross bar assembly, fixed contacts and current carrying parts of the breaker, trolley, insulated assembly and checking lamination with clamps, epoxy spout, isolator assembly etc. (e) Setting, reassembling, cleaning, adjustment of fixed contacts, main contact, arcing contacts and chamber baffle pot assembly, moving contact for proper setting of auxiliary contacts operating mechanism. (Item 53.00 Contd..../-)

(f) Servicing/Inspecting/checking of secondary sockets/busbar earthing plugs/earthing sockets and replacement of spares if required. (g) Checking, setting and adjustment of lowering and raising operation of the breaker trolley. (h) Lubrication and greasing of all moving parts of the trolley, stopper bolt for proper operating and closing of shutter gear, isolation resistance of trolley of with vacuum interrupter assembly. (j) The inspection of HT switch gear shall involve:- (i) Inspection of truck & hoist assembly. (ii) Inspection of tank assembly & barriers. (iii) Inspection of assembly & components of solenoid assembly. (iv) Inspection of assembly & components of dependent mechanism. (v) Inspection of assembly & components of spring box mechanism. (vi) Inspection of motor mechanism spring charge assembly (vii) Inspection of assembly of trip unit & related components (Item 53.00 Contd..../-)

Notes: (i) The rate quoted shall be deemed to include for necessary T&P, nuts, bolts, washers, gasket, insulation tape, compound, painting of VCB panels with approved colour all as per exisitng etc. to put in to the VCBs and panels in serviceable condition, testing and commissioning all as specified and as directed by the Engineer-in-Charge. (ii) Major spares like Breaker bushings, vaccum interrupter assly, busbar spout, busbar spout connections, circuit spout/circuit spout connections/buffer fixed contacts, moving contacts, tank assly/barriers, solenoid spares, dependent/spring mechainsm/ motor mechanism, trip unit etc will be measured and paid separately under relevant items of Schedule 'A'. However the rate quoted shall be deemed to include for any other minor spares require replacement.

Supply only following spares for HT switchgear of capacity 11 KV, 250MVA to 350 MVA for sutable make/model as mentioned In Item No.53 here-in-above.

Supply only 1.5 sqmm flexible FRLSH PVC insulated stranded copper conductor cable, unshethed, 1100 V grade for control wiring.

Supply only 2.5 sqmm flexible PVC stranded copper conductor cable, unshethed, 1100 V grade for control wiring.

LED Indication Lamps

LED type push button actuators

Shunt trip coil 24 V DC/30 V DC/110 V DC

CTs epoxy cast wound primary CTs with minimum primary current 50 to 400 A, single/ double ratio, double core (Protection core-5P10 & Metering core- Class 0.5/1.0), 18/21/25 KA for 1 sec of 15 VA Burden.

Breaker control switch

Breaker bushing contact

Vacuum interrupter assembly suitable for Andrew yule / Kirloskar / Schnieder(Areva) / CG / ALSTOM HT VCBs

Busbar & Circuit Spout

Control circuit fuses 2 A to 63 A

HRC fuse (PT HT side)

PT plug contact

Spring charging motor with gear assembly. Make: Bosch or suitable for HT VCB OEM make

Ammeter 240 deg 144 sq mm. Make: AE/ MECO/ Schneider /L&T/HPL (SOCOMEC).

Voltmeter 240 deg 144 sq mm . Make: AE/ MECO/ Schneider/L&T/HPL (SOCOMEC).

Multifunction meter, Digital type (Displaying A, V, PF, Hz, KVA, KW, KVAR, KWh, KVARh etc.) Class 0.5 with RS485 port for communication in Modbus protocol.Make : L&T, Conzerve, HPL (SOCOMEC), CG.

Cast Resin Three phase Potential Transformer 11KV/√3/110V/√3,100VA, Cl 1.0/0.5 with desired capacity PT Fuses & having burden 100 VA

Rachet handwheel with gear assembly

M&L for replacement of old defective HT energy meter with AC Three Phase HT/CT Multifunction DLMS Compliance of Accuracy Class 0.5, 3 X 63.5V, 50Hz with Optical & RS232 Port, Backlit LCD Display, (Measures kWh, kVAh, KVARh, V, I, kW, P.F, 6 months history of Energy, Load survey, RMD, TOD, Tamper detection & logging, Power On/Off Events, instantaneous parameters of Rating -/5A with display in absence of power. ( Default PT ratio*: 11kV/110V & CTR: 5A) including modem/ SIM & 1 year data package suitable for M/s Crompton Greaves make / Kirloskar Make HT VCB panel as per site conditions including necessary copper control wiring complete complete all as specified and directed. Make: L&T/HPL/SECURE”

Repair & Maintenance of 110 V DC charger, inspecting the parts like full wave half controlled float cum boost charger, analog / digital AC voltmeter, AC ammeter, DC voltmeter, DC ammeter, LED indication lamps, AC input circuit breaker, semiconductor fuses for charger bridge, DC circuit breaker and blocking diode, float voltage adjust potentiometer, automatic voltage regulatior functionality and setting the voltage to 110 V, filter circuit, auto phase reversal system and replacing defective spares including painting complete all as specified and as directed. (Location: BV Yard S/S)

Supply, charge, install, connect test and commissioning of 110 V DC auxiliary power source consisting of 2V lead acid cells 55 Nos with necessary copper cabling/lugs complet for protection of power control system comprising of the following all as standard practice and as specified including dismantling old battery power pack system complete.

(a) 110V/100AH VRLA battery pack consisting of Lead acid cell batteries minimum 55 Nos with 2.3 V per cell in float charge condiiton, 2.75V per cell in Boost charge condiiton, 1.75V permissible cell voltage at the end of discharge complete . (b) DC buses of flat and of adequate cross section and length fixed to epoxy insulator supports as required. (c) Copper cable of adequate size and length from battery charger to bank of battery and battery bank to auxiliary supply panel.

Supply, charge, install, connect test and commissioning of 30 V DC auxiliary power source with 2V lead acid cells for protection of power control system comprising of the following all as standard practice and as specified including dismantling old battery power pack system complete.

(a) 30V/100AH VRLA battery pack consisting of Lead acid cell batteries minimum 15 Nos with 2.3 V per cell in float charge condiiton, 2.75V per cell in Boost charge condiiton, 1.75V permissible cell voltage at the end of discharge complete. (b) DC buses of flat and of adequate cross section and length fixed to epoxy insulator supports as required. (c) Copper cable of adequate size and length from battery charger to bank of battery and battery bank to auxiliary supply panel.

Dismantling old defective auxiliary power supply panel and Supply, install test and commissioning of auxiliary power supply panel indoor floor mounted factory made out of 2mm thick MS sheet front operating cubical type providing bus bar chamber with aluminium bus bar of suitable size, 30V DC output in float mode,including supply & interconnection with solid copper conductor cable, painting with one coat of red oxide primer and two coats of synthetic enamel paint complete comprising the following all as specified.

Supply, installation, testing and commissioning as in repair DC power pack with input voltage 230 V AC, output voltage 24/30/48/110/220 V +/- 2% DC, IP 20, continuous rating load 100 VA, impluse load 450 VA for 240 msec abd backup 15-20 mins (maximum 10 trip attempts), over voltage protection, LED indication for input high, charger on, battery low, over load, battery mode etc complete all as specified and as directed. Note for Item 54 to 60:- Repair work shallbe carried out in VCBs mentioned in Appendix 'A' to Particular Specifications

S&F Plates (plain or chequered), channels, angle irons, square cut or notched (ordinary and counter sunk) forming holes, without any attachment all as directed conforming to Fe 410-O 0r Fe 310-O including applying two coats of synthetic enamel paint over a coat of red oxide zinc chrome primer including dismantling old rusted cable/duct covers.

Dismantling old defective/peeled of Insulating Mat and M/L for Elastomer Insulating Mats for Electrical Purposes Class B/voltage grade upto 11 KV (AC) as per IS : 15652:2006 with ISI mark of thickness 2.50 mm + 10% of approx width not less than1 mtr along with suitable adhesive /chemibound resin waterproofing compound and sealing material all as per manufacturers' recommendations. Make: Electromat or equivalent approved by GE

Taking down the damaged HT aerial barrel fuse from the 4 pole / 2 pole structure, supply and fix 11 KV aerial fuse of rated current carrying capacity 20 Amps after cleaning the contacts of fuse link with CRC solution complete all as specified and as directed. Note:(i) All the 3 phases of aerial fuses should be changed and replacement of all the 3 phase fuses considered as one job. (ii) Each Job will be measured and paid when ever replaced through Job Card.

Taking down the damaged HT aerial barrel fuse from the 4 pole / 2 pole structure, supply and fix 11 KV aerial fuse of rated current carrying capacity 40 Amps after cleaning the contacts of fuse link with CRC solution complete all as specified and as directed. Note: (i) All the 3 phases of aerial fuses should be changed and replacement of all the 3 phase fuses considered as one job. (ii) Each Job will be measured and paid when ever replaced through Job Card.

Taking down the damaged HT aerial barrel fuse from the 4 pole / 2 pole structure, supply and fix 11 KV aerial fuse of rated current carrying capacity 60 Amps after cleaning the contacts of fuse link with CRC solution complete all as specified and as directed. Note: (i) All the 3 phases of aerial fuses should be changed and replacement of all the 3 phase fuses considered as one job. (ii) Each Job will be measured and paid when ever replaced through Job Card.

M&L for disconnecting carefully electrical connection from both HT/ LT (primary & secondary) sides of the transformer, keeping them at safe side and taking out the transformer/Voltage stabiliser indoor/ outdoor type of capacity 500 to 750 KVA, 11 KV/ 0.433 KV, step up / step down any make for carrying out complete overhauling which shall comprise of the following:-

a) M&L for lifting, transporting, handling, the transformer to workshop and opening top cover of the transformer by unscrewing nuts, bolts, washers etc. including disconnecting core assembly from HT/ LT bushing and lifting the same gently and taking out from the shell (container/ body) of the transformer. b) M&L for draining out transformer oil from the above said transformer in the suitable capacity of container /drums and keeping it in safe custody for reuse. c) M&L for cleaning the transformer body from inside, removing deposited dirt/ sludge/ foreign particles etc. from the bottom/ body of the transformer and drying up the shell from inside before refilling of the transformer oil. d) M&L for cleaning and washing thoroughly core and windings of the transformer by hosing down with clean dry oil( without moisture) conforming to IS 335/1983, removing deposited dirt/sludge/foreign particles from the windings/ core, thorough inspection of windings, providing insulations to leads and terminals, heating/ drying/ baking complete carefully and thoroughly inside the heating chamber at suitable temperature to obtain required value of insulation resistance etc. all as directed by Engr-in- charge.

e) Lifting and refixing core assembly inside the transformer shell gently and carefully, connecting primary/ secondary/ Neutral connections to the bushings assembly, fixing of tap change over including tightening of nuts, bolts, washers of the core to reduce humming noise all as directed. f) Refilling the filtered transformer oil in the shell of transformer complete. g) Refixing the top cover including replacement of cork sheet/ gasket 8mm thick, tightening of nuts/ bolts/ washers etc. and replacement of breather with silica gel crystal type all as directed by Engr-in charge. h) Lifting/ shifting to the place from where removed or to any location as directed and re-installing the transformer including connecting primary/ secondary/ neutral and earthing connections etc. all as directed by Engr-in-Charge.

j) The inspection of transformer shall involve:- i) Checking of all clamps, nuts, bolts including core bolts & cover fixing bolts. Ii) Checking all brazings, joints, tap heads and connection joints. iii) Checking all jumpers, terminations/ connections inside the transformer. iv) Checking the Buchholtz relay/ conservator MOG if any. v) Painting of transformer complete with two coats of synthetic enamel paint externally transformer shell complete all as directed by Engr-in-Charge. (vi) Inspection of tap changer, checking the moving and fixed contacts for contact wear and connection to winding. k) Conducting the tests on core and windings as per IS like ratio, magnetic imbalance, short circuit etc. in presence of Engr-in-Charge and test results shall be signed both by the contractor and Engineer -in-Charge and kept on record.

All as per Item No. 66 herein before but but transformer/Voltage stabiliser indoor/ outdoor type of capacity 250 kVA to 400 kVA

All as per Item No. 66 herein before but but transformer/Voltage stabiliser indoor/ outdoor type of capacity 100 KVA to 200 KVA

Note for Item 66 to 68:- (i) Any damage to insulators/ bushes/ windings etc. while in the custody of the contractor shall be made good at no extra cost to Department. The serviceability of the transformer shall be checked and confirmed by the contractor before taking into his custody. (ii) The quoted rate deemed to be inclusive of provision of alternate stand by transformer of suitable capacity (on rental basis) from workshop till repairs to existing transformer and the cost of rent, transportation to and fro, installation & connection also deemed to be included the quoted rate for the same. (iii) M&L for rewinding/ re-insulation of HT/ LT (primary/ secondary) coils, bushes, studs, Transformer oil,cable box, replacement of buchholtz relay if any etc will be measured and paid separately.

M & L for Filtration of transformer oil of transformers/ Voltage stabilisers installed at various locations to achieve di-electric strength not less than 60 KV at 2.5mm gap as per relevant IS with portable filtration plant, testing of the oil for the di-electric strength before filtration and after filtration and submit the same signed by both contractor and Engineer in Charge and kept on record complete all as directed by the Engineer-in-Charge.

Supply and topping up of transformer oil with di-electric strength not less than 60 KV in to the conservator tank/ body tank of the transformer/ PSS/ Voltage Stabilizers etc at various locations complete all as directed by the Engineer-in-Charge. [Make: Poweroil/ Transol/ Sabitha Chemicals]

M&L for rewinding of distribution (HT/LT) transformers / voltage stabilizers of capacity ( 50 KVA to 750 KVA)/ type by winding the defective coils with new copper wire as per I.S. of same gauge and existing size together with new insulated materials/ bracings before placing in to the transformer and assembling the coil with new insulation and fitting the coils in the chamber, testing and commissioning the transformer and recording the test results complete all as directed. [Note: M&L for re-insulation of serviceable coils will be measured & paid separately under relevant items.]

M&L for re-insulating windings of HT/ LT distribution transformers of capacity ( 50 KVA to 750 KVA) / size/ type by strip opening of HT/ LT coils (i.e. Primary/ secondary coils) from core assembly safely, unwinding the HT/ LT coils (i.e. Primary/ secondary coils) complete, removing the old defective insulation paper and replacing with new DPC insulation to the copper conductor, re-varnishing of the windings with super varnish including heating/ drying/ backing complete carefully and thoroughly inside the heating chamber at suitable temperature to obtain required value of insulation resistance etc. all as per IS 1986-87 and as directed by Engr-in- charge.

M&L for replacement of silica gel breather of assembly for HT/ LT distribution transformers of the following capacity including dismantling old one

500 to 750 KVA

250 to 400 KVA

100 to 200 KVA

M&L for replacement gun metal drain valves of transformers of following capacities including dismantling old one:- MAKE :- UPADHYAYA/ LEADER/ ZOLOTO/ VAG or equivalent

500 to 750 KVA

250 to 400 KVA

100 to 200 KVA

M&L for replacement of the LT porcelain bushings complete of following capacity distribution transformers of existing transformer make/ size/ type all as directed including dismantling old one.

50 to 750 KVA

M&L for replacement of the HT porcelain bushings complete of following capacity distribution transformers of existing transformer make/ size/ type all as directed including dismantling old one.

100 to 750 KVA

M&L for replacement of the LT bushing rod made out of gun metal with threading & of suitable length/ size all as per existing including metal rings/ bolts/ washers/ rubber rings etc. complete of following capacity distribution transformers of any make/ size/ type all as directed including dismantling old one.

500 to 750 KVA

250 to 400 KVA

100 to 200 KVA

M&L for replacement of the HT bushing rod made out of gun metal with threading & of suitable length/ size all as per existing including metal rings/ bolts/ washers/ rubber rings etc. complete of following capacity distribution transformers of any make/ size/ type all as directed including dismantling old one.

100 to 750 KVA

M&L for replacement of (OTI) Oil Temperature indicator of following distribution transformers including dismantling old one.

100 to 750 KVA

Dismantling old rusted cable box and M&L for providing new cable box made out of MS sheet of thickness not less than 5 mm including fabrication works, welding etc of appropriate size to suit the existing transformer size, including nuts, bolts, cable glands, termination of existing cables and applying two coats of smoke grey colour synthetic enamel paint over a coat of red oxide primer etc., all as directd by the Engineer-in-charge for the following capacity transformers.

500 to 750 KVA

250 to 400 KVA

100 to 200 KVA

M&L for preparation of old painted surfaces of transformers / voltage stabilizers with coarse cloth/ brush and painting throughout externally on exposed surfaces with two coats of smoke grey or any approved colour synthetic enamel paint or as approved colour including writing of transformer details on plinth in white enamel paint on black enamel paint back ground complete including one coat of white wash for base foundation all as specified and directed by Engineer-in-charge for the following capacity in-door/ out-door type transformer:-

500 KVA to 750 KVA

250 to 400 KVA

100 to 160 KVA

50 to 75 KVA

Clearing of bushes/small plants upto root level around and surroundings areas E/M installations (i.e.Two Pole/ Four structures, outdoor-substation yards & Misc E/M installations etc) including spraying of chemical for anti-vegetation growth as approved, surface dressing n.exc 15 cm deep and removing debris to a distance n.exc 50m complete all as directed

Supply and lay Graded coarse aggregate of size 40 mm dia size in outdoor sub-station yards all as directed

Supply and lay Graded coarse aggregate of size 20 mm dia size in outdoor sub-station yards all as directed

M&L for disconnecting carefully electrical connection from both HT/ LT (primary & secondary) sides of the transformer, keeping them at safe side and taking out the transformer/Voltage stabiliser indoor/ outdoor type of capacity 50 to 750 KVA, 11 KV/ 0.433 KV, step up / step down , including lifting/ shifting , transporting, handling to the place from where removed or to any location as directed and re-installing the transformer carefully including connecting primary/ secondary/ neutral connections etc. all as directed by Engr-in-Charge.

Material and labour earthing with copper plate 60×60cm ×3.15mm thick electrode and 20×3mm copper strip as earthing lead, buried directly in ground to a depth not less than 2.25 mtr deep below normal ground level with top edge of the earth plate not less than 1.5 mtr deep below normal ground level connected to20×3mm copper strip as earthing lead by means of nuts, bolts and washers of steel after welding of GI strip to earth electrode to the full length of earth plate, GI medium grade pipe 40 mm bore protection pipe upto test point, 20mm dia GI light grade watering pipe with funnel and wire mesh, RCC pit cover of size 300x300x40mm reinforced with XPM having weight not less than 4Kg/sqmm including 6mm thick MS bar handle made to shape, PCC pit with 1:3:6 type C1 with angle iron frame made of angle iron of size 40x40x4mm, adequate qty of charcoal dust and salt layers all around the earth plate, excavation , earth work in any type of soil, removal of excavated soil and returning filling in all as required at site complete all as specified in plate No 3 of SSR Part-I and all as specified or indicated including testing on completion. NOTE :-Rates inclusive of necessary excavation in any type of soil, earth work, PCC pit, RCC cover, funnel with watering pipe,Copper earth strip upto 7.5 m long for connecting to test point etc. all as required at site for complete earthing and dismantling old defective earthpit.

M&L for solid block walling with PCC block (1:3:6) Type C1 (20 mm graded Aggregate) , straight on plan exc 6m mean radius built in CM 1:6. cement mortar complete all as specified and as directed

M&L for rendering 10 mm thick in CM 1:4 on fair faces of brick work or concrete surface and even smooth (without using extra cement) complete all as specified and as directed

Sree Tirumala Enterprises

Gulmarg Electrical Service

CHANDER SEKER ENTERPRISE

Ashini Infratech Private Limited

ISLAND SALES ENTERPRISES