COMPREHENSIVE MAINT OF HT TRIPPING SYSTEM , DEHYDRATION OF TRANSFORMER OIL, AND MAINT OF HT DISTRIBUTION SYSTEM INCLUDING REPAIR TO GANG OPERATING DEVICES AT NAMKUM , KHOJATOLI AND LPH AREA UNDER GE RANCHI

Amount

M & L for Servicing / Calibration to 33 KV HT VCB panel ( Incomer panel No : 1) complete including the following : switching off electric supply, Checking of mechanical system for proper functioning, replacing closing buffer, triping buffer (VMX type), V I connection gap check, motor coil resistance check, closing coil resistance check, spring charging cut off switch check, aux switch check, NO-NC states check, trip coil resistance check, testing details, timing test, oil value test, breaker timing test, connector resistance test, IR value test, HV test, mechanical and electrical mechanism check, counter reading check, shock observer check, pre close/ post close circuit check, test and service position limit switch check, breaker drive screw operation check, trip coil assemble operation check, mechanical latch . Cleaning & servicing the fixed/ moving contact & blowing out dust and applying the proper lubrication/ greasing and reassembling the VCB including connection to HT panel complete including replacement of following spares complete all as directed. (a) Control Fuse with link 32 A, - 12 Nos, (b) Trip Netural close switch, - 01 No, (c) Hooter 30 V DC - 01 No, (d) Multifunction energy meter with KHW, KVAH, PF, HZ, KW etc loading - 01 No, (e) Indicating LED lamp - 03 Nos , Note:- (i) Maitenance of all HT VCB will be carried out as per maintenance schedule (ii) Unit rate include two preventive maintenance and one break down rectification during the entire period of work. (iii) Testing of above job to be carried out by engineers of authorised dealer/service centre.

Supply & fix for replacement of Potential Transformer , PT : Ratio : 11000/110 Volt 3 phase. CORE - 1 :15 VA CLASS : 1. CORE- 2 :15VA CLASS 5P10. STC : 13:1KA 1 Sec. ILV : 12KV/28/75 KVP. SYSTEM VOLTAGE : 12KV. TYPE ; oil type As Per IS -2705 .IEC- 60044 , suitable for Indoor VCB including proper Connection to BusBar and connecting with electric system such as Control Panel Complete all as directed. Make- CG, Kappa, Laxmi

Supplying, installing, in replacement of HV rectifire operating Aux 30/110 volt AC/DC with NO NC complete all as directed. Make:- AREVA (Modle no ERC-A-AOODC.OO) or Equivalent in Schneider/L&T/C&S

Supplying and installing in replacement, testing and commissioning plug in trip circuit supervision relay suitable for operation on 110 volts, as per sample complete all as directed. Make OEM/Ply/Micom

Supplying, installing, in replacement of 220 Volt AC/ DC Motor 100 to 500 Watt Class B for 33 KV tripping control system complete all as directed. Make:- AREVA (Modle no ERC-A-AOODC.OO) or Equivalent in Schneider/L&T/C&S

Supplying, installing, in replacement of Hooter 90mmX96mm AC 230V complete all as directed. Make- L&T/ ABB/Schneider

Taking down HT switch gear (Vacuum circuit breaker ) of capacity 630 Amps, 11 KV, 250 to 350 MVA and strip opening the HT panel of rating 11 KV, 3 phase comprising of following repairs, overhauling, servicing and refixing the same after repairs/ overhauling complete all as directed.

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.

Servicing/Inspecting/checking of automatic safety shutter operation for serviceability and replacement of spares if required. Note: Supply only spare parts shall be measured and paid sepetately (if replaced)

Servicing/Inspecting/checking of circuit spout and circuit spout connections for RYB phases and replacement of spares if required. Note: Supply only spare parts shall be measured and paid sepetately (if replaced)

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.

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.

Servicing/Inspecting/checking of secondary sockets/busbar earthing plugs/earthing sockets and replacement of spares if required. Note: Supply only spare parts shall be measured and paid sepetately (if replaced)

Checking, setting and adjustment of lowering and raising operation of the breaker trolley.

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.

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.

Checking, inspecting, calibration of relays, ammeters and voltmeters etc complete.

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.

Inspection of PTs and CTs

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 (viii) Testing function of Vaccum interrupter (Vaccum Bottle ) of VCBs by testing equipment and inspecting of housing and insulators complete testing certifiacte to be submited to Engineer-in-Charge.

Notes: (i) The rate quoted shall be deemed to include for necessary T&P, minor spares like nuts, bolts, washers, gasket, insulation tape, lugs, compound, copper wire, sealent provided to lid/opening of cable gaps etc. to put into the VCBs /HT panels in serviceable condition, testing and commissioning all as specified (ii) Rates for items No 8 to19 shall be paid as supply only as labour rate is included in this item.

Supply only Shunt trip coil 110 V DC/220 V DC /30 V DC suitable for 650 Amps 250 MVA to 350 MVA HT switch gear (VCBs) of any make and 11 KV HT panel complete all as directed.

Supply only HRC fuse 16 Amp (PT HT side) any make suitable for 11 KV HT panel complete all as directed. Make:- HPL, AE, L&T , Schneider

Supply only Current transformer of with CT Ratio : 200 - 100 / 5+5 Amp ,Core I CL 1.0 with 15 VA burden for metering, Core II CL 5P10 With 15 VA for Protection burden short circuit rating 18 kA with insulation level 12kV/28kVrms/75kVp any make suitable for 650 Amps 250 MVA to 350 MVA HT switch gear (VCBs) of any make and 11 KV HT panel complete all as directed.

Supply only Space heater suitable for HT switch gear (VCBs) of any make complete all as directed.

Supply only Trip Free Mechanism suitable for 630 Amps 250 MVA to 350 MVA HT switch gear (VCBs) of any make and 11 KV HT panel complete all as directed Make -AREVA/L&T/Schneider

Supply only Closing coil suitable for 630 Amps 250 MVA to 350 MVA HT switch gear (VCBs) of any make and 11 KV HT panel complete all as directed. Make -AREVA/L&T/Schneider

Supply only Auxilary switch 4 NO + 4 NC suitable for 630 Amps 250 MVA to 350 MVA HT switch gear (VCBs) of any make and 11 KV HT panel complete all as directed. Make -AREVA/L&T/Schneider

Supply only TNC switch suitable for HT switch gear (VCBs) of any make and 11 KV HT panel complete all as directed

Supply only Shower contact assembley suitable for 630 Amps 250 MVA to 350 MVA HT switch gear (VCBs) and 11 KV HT panel complete all as directed. Make -AREVA/L&T/Schneider

Supply only brass nut suitable for Shower contact assembley of 630 Amps 250 MVA to 350 MVA HT switch gear (VCBs) and 11 KV HT panel complete all as directed. Make -AREVA/L&T/Schneider

Supply only Vacuum interrupter of capacity 12KV,1250A with support post insulators, suitable 630 Amps 250 MVA to 350 MVA HTswitch gear (VCBs) of any make and 11 KV HT panel complete all as directed Make Areva/BE/BHEL

Supply only VCB Housing of suitable capacity 12KV,1250A including separator shutter suitable for 630 Amps, 250 MVA to 350 MVA HT switch gear (VCBs) and 11 KV HT panel complete all as directed

Disconnection and taking out of the IDMT/digital relay, three element type of any make from HT panels including following :- (i) Cleaning of relay & contacts (ii) Calibration of relay by conducting secondary injection tests. (iii) Checking of CTs. (iv) Rectification of defects in control wiring, if any . (v) Adjustment/ setting of plug and time multiplier. (vi) Setting of the relay to achieve the discrimination in tripping. (vii) Tuning of up stream breaks. (viii) Re-installation of relays including testing.

Supply and fixing of Over current & Earth fault Protection numerical relay suitable for existing 11KV ring main unit & feeder protection of any make with Aux suuply, CT current, internal battery, USB port , cold load pickup circuit bearker protection ,potential free alarm contacts, last 5 fault and 10 event record with time stamp, LCD display ,USBs Communication etc all as per standard IEC-60255, EN-65000 and IEC-255 and relay having following protection features complete all as directed. (i) Relay having three phase definite time over current and short circuit protection current with varriable times ,three phaes over current protection with short circuit protection with variable tripping times ,define time and inverse time earth over current protection,circuit breaker protection. (ii) Protection blocking through DI (iii) Three phase tiem over current protection (iv) Three phase instantaneous protection. (v) Earth time over current and earth instantaneous over current (vi) Circuit breacker failure detection (vii) Trip circuit supervision

Repair / servicing and Checking HT 11KV, Capacity 630 Amps, out door type, Ring main unit (RMU) having upto 04 way breakers ,tripping circuit and resetting trip values and nuemerical relays and checking tripping machanism servicing the LBS fully, indicator wiring setting of charge spring by engaging well experianced technicians as per manufacturer recommendation complete all as directed. Note: Spare parts shall be measured and paid separately under relevant items .

M&L for defect rectification in HT 11 KV cable laid in trenches by locating fault with the help of electronic fault locator machine comprising of surge generator pulse ECHP fault location with high frequency distance calculator etc. including excavation in any type of soil strata exposing the cable fault, removal of deteriorated portion of cable, treating of cable and keeping the same ready for jointing work for cables of size upto 300 Sqmm 3 core. The fault locating equipment will be brought to site within 02 hours of instruction received from Engineer-in-Charge complete all as directed. Notes: (i) The rate quoted shall be deemed to include for necessary T&P, minor spares like nuts, bolts, washers, gasket, insulation tape, lugs, compound, copper wire, sealent provide to lid/opening of cable gaps etc. to put in to the VCBs /HT panels in serviceable condition, testing and commissioning all as directed (ii) Rates for Cable and jointing kits shall be measured and paid separately against respective items.

M & L earthing complete with galvanised steel earth plate electrode of size 600 x 600 x 6 mm thick burried directly in ground vertically to a depth not less than 2.25 mtr below ground level with top edge of plate not less than 1.5 m below ground level connected to and including galvanised earth strip of size 25x4 mm (up or 7.5 mtr length) and GI pipe 40 mm light grade for protection of GI earth strip by means of bolts, nuts, checknuts and washers made out of galvanized iron and connected to earth test point as shown in electrical plate No. 3 of SSR Part-1-2009 and as specified or indicated and testing on completion including excavation and earth work in any type of soil strata available at site, PCC (1:3:6) type C-1 for earth chamber, precast RCC slab 50mm thick in cement concrete (1:2:4) type B-1 reinforced with welded steel wire fabric (xpm) weight not less the (4kg/sqm) funnel with GI watering pipe of 20 mm bore medium grade, wire, nuts and lugs including taking down old u/s one complete all as directed.

M & L of Earth electrode 17.2 mm dia 3 mtr long of low carbon steel electrode with copper bonding of thickness 250 micron, Back-fill earthing enhancing compound AXIS ULTRA / AXIFILL type Carbon based compound conductive concrete type which has a resistivity of less than 0.12 Ohm Mtr as per Clause 14.5D of IEEE : 80 standard. Back-fill compound shall be electronically conductive (Like in metals) and shall not depend on moisture for conduction. Back-fill comound shall be environment friendly & shall be solidify when mixed with water and set like concrete and shall not leach / diffuse into the ground. Back-fill compound shall not be mixed with any soil while pouring in the bore hole. Test Certificate as per as per IEC: 62561-7 for Back-fill compound shall be submitted along with the material including SS clamp to be provode both side and PVC earth pit 300 X 300 MM with plastic lid and taking down old unserviceable earthing of any type complete all as directed. Note - (i) Earth electrode shall be applicable Standards IS: 3043, IEC 62561-2 & IEC 60364-5 and made of High Tensile steel rods copper bounded, High tensile strength, good electrical conduction & effective performance and suitable for all type of soil and provided minimum distance 3 Mtrs. (ii) Back-fill compound shall be Compliance to the Standards IEEE: 80, IS-3043, BS 7430, IEC 62561-7, ANSI/NSF 60 Certification. (iii) Positive low resistance electrical connection to the earth. (iv) Does not contain hazardous chemicals. (v) Electronically conductive (like in metals) and is not dependent on moisture. (vi) Provide the desire value of earth resistance as per required specified values. (vii) Provide the Exothermic welding joints to entire grid system joints of earthing electrod. (viii) Test certificated to be provide of each electrode.

M&L for Copper earth strip of size 20x3 mm in ground not exceeding 40cm deep / fixing to wall / pole structure including taking down old strip complete all as directed. Note :- (i) Excavation for laying of Earth strip to be paid in respective items (ii) Cost of insulator /PVC pipe for protection of pipe and other accessories for fixing of earth strip to pole structure to be includes in items rates.

M&L for GI earth strip of size 32 x 6 mm in ground not exceeding 40cm deep / fixing to wall / structure including taking down old strip complete all as directed. Note :- (i) Excavation for laying of Earth strip to be paid in respective items (ii) Cost of insulator /PVC pipe for protection of pipe and other accessories for fixing of earth strip to pole structure to be includes in items rates.

M&L for GI earth strip of size of 25 x 4 mm in ground not exceeding 40 cm deep / fixing to wall / structure including taking down old strip complete all as directed. Note :- (i) Excavation for laying of Earth strip to be paid in respective items (ii) Cost of insulator /PVC pipe for protection of pipe and other accessories for fixing of earth strip to pole structure to be includes in items rates.

Material and labour for danger notice plate of 1.6mm thick mild steel sheet with vitreous enamelled with letter figures and conventional skull and bones in signal red colour and fixed with MS clamps, bolts and nuts of approved size for HT, 25 x 20cm complete all as directed.

Dismantling transformer step down out door type 11KV/433 Volts of capacity 100 to 500 KVA by disconnecting incoming /outgoing cables and ACSR jumpers, opening top end of the unit by unscewing nuts/bolts washers etc complete all as directed for replacement of unserviceable parts and reassembling including reconnections of incomers and outgoing connections (work includes replacement of gasket, seal, draining out and refilling of transformers oil, rusted /unsv nuts bolts with washers and general cleaning of transformers inner chamber by removing accumulated sludge etc at bottom before refixing) complete all as directed Notes:- (i) The transformer repair works shall be carried out at installed site by engaging specialised and experienced technicians. (ii) The oil shall be filtered before refilling (if found reusable) The charge for filteration will be measured and paid separately. (iii) Attending breakdown of transformer after verbal information recieved from Engineer-in-Charge shall be included in items rates (iv) Rates for items No 32 to 43 shall be paid as supply only as labour rate is included in this item.

Supply only LT porcelain bushings complete of transformer step down out door type 11KV/433 Volts of capacity 63 to 250 KVA any make/ size/ type complete all as directed .

Supply only LT porcelain bushings complete of transformer step down out door type 11KV/433 Volts of capacity 315 to 500 KVA any make/ size/ type complete all as directed .

Supply only HT porcelain bushings complete of transformer step down out door type 11KV/433 Volts of capacity 63 to 250 KVA any make/ size/ type complete all as directed .

Supply only HT porcelain bushings complete of transformer step down out door type 11KV/433 Volts of capacity 315 to 500 KVA any make/ size/ type complete all as directed .

Supply only 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 of transformer step down out door type 11KV/433 Volts of capacity 63 to 250 KVA any make/ size/ type complete all as directed .

Supply only 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 of transformer step down out door type 11KV/433 Volts of capacity 315 to 500 KVA any make/ size/ type complete all as directed .

Supply only 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 of transformer step down out door type 11KV/433 Volts of capacity 63 to 250 KVA any make/ size/ type complete all as directed

Supply only 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 of transformer step down out door type 11KV/433 Volts of capacity 315 to 500 KVA any make/ size/ type complete all as directed

Supply only silica gel breather assembly for HT distribution transformers of 63 KVA to 500 KVA capacity complete all as directed .

Supply only gun metal drain valves of transformers from 63 KVA to 250 KVA capacities complete all as directed.

Supply only gun metal drain valves of transformers from 315 KVA to 500 KVA capacities complete all as directed.

Supply only (OTI) Oil Temperature indicator from 100 to 500 KVA capacity distribution existing transformers complete all as directed

All as per items No- 31 but after removing transformer to authourized HT electrical workshop by lorry transport for inspection and rewinding ,replacement of defective parts ,rewinding of HT/LT coils as found necessary and refilling of oil after dehumidification /filteration, testing and submission of test reports after repairs /overhauling and reinstallation of the transformers in original location with incoming /out going cable connections etc complete all as directed Note - (i) Rates includes provision of mobile crane unit for lifting /loading of the transfromer at site & workshops (ii) Any damage to insulators/ bushes/ windings etc. while in the custody of the contractor shall be made good at no extra cost to govt. The serviceability of the transformer shall be checked and confirmed by the contractor before taking into his custody. (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 in respective items.

Supply and replace defective terminations/ connections inside the transformer complete all as directed.

M & L for rewinding of HT coils with copper wire / strips DPC / super enameled copper winding wire match with existing gauge or as recommended by the manufacturer for turn ratio and impedance including requisite paper / insulation material in each layer of winding complete all as directed

Testing of di-electric strength i.e BDV test for 60 Sec with stand the transformer oil of any capacity to authorised value 45 to 60 KV using standard oil test kit as per result as IS 335 - 1993 & 6792 -1972 complete all as directed. Note :- (i) The rate quoted shall be deemed to include for arrangement of standard testing kit . (ii) The dielectric strength value of the transformer oil shall be tested before filtration. (iii) Sample of oil to be collected and testing to be done at transformer site. (iv) Testing to be done with gap seting - 2.5 mm , tempreture setting on ambient and frequency with 50 cycle . (v) Test reports shall be enclosed at the time of payment.

Filtration of transformer oil of transformers installed at various locations to achieve di-electric strength not less than 60 KV for 1 minute at 2.5 mm gap as per relevant IS with portable filtration plant, testing of the oil for the di-electric strength before filtration and after filtration complete all as directed. Note :- (i) The rate quoted shall be deemed to include for taking necessary conections to filteration plant from transformer and switch gear oil duly removing the inlet and out let connections. (ii) Electric supply for the filteration plant will be made self arrangement by the contractor and cost deemed to be including qouted rates. (iii) The dielectric strength value of the transformer oil shall be tested affter filtration as specified and directed. (iv) Test reports shall be enclosed at the time of payment.

Supplying, filling dehydration of new transformer oil for toping up/replacement of transformer oil having dielectric strength not less than 60 KV (rms) with gap of 2.5 mm complete all as conforming to IS 335 of 1993 complete all as directed.

Supply and fix HT 33 KV outdoor non linear type lightening arrestor with mountings, accessories complete fixed on cross arms of two pole structure/GI flat strip and connect with same size of ACSR conductor encased in PVC alkathine pipe with all fittings connected to earth strip with nut, bolt, washer transmission class having discharge capacity of 65 kilo Amps complete all as directed

S&F in replacement of unserviceable lightning arrestors with new 11 KV Lightning arrestors explusion type complete with all fittings and necessary connection,transmission class, discharge capacity 65 kilo amps complete all as directed

Material and labour for lightning arresters for outdoor use expulsion type suitable for 11000 volts (HT) complete with all fittings, transmission class, discharge capacity 65 KA including taking down existing lightening arresters of any type and size complete all as directed.

Material and labour for preparation of old painted surfaces of 3.15 MVA capacity indoor / outdoor type transformers with coarse cloth/ brush and painting throughout externally on exposed surfaces with two coats of smoke grey colour synthetic enamel paint or approved colour as directed including writing of SM/MES Number on transformer and transformer details on plinth in white enamel paint on black enamel paint back ground complete including one coat of white wash for base foundation complete all as directed.

Material and labour for preparation of old painted surfaces of 63 to 250 KVA capacity indoor / outdoor type transformers with coarse cloth/ brush and painting throughout externally on exposed surfaces with two coats of smoke grey colour synthetic enamel paint or approved colour as directed including writing of SM/MES Number on transformer and transformer details on plinth in white enamel paint on black enamel paint back ground complete including one coat of white wash for base foundation complete all as directed.

Material and labour for preparation of old painted surfaces of 315 to 500 KVA capacity indoor / outdoor type transformers with coarse cloth/ brush and painting throughout externally on exposed surfaces with two coats of smoke grey colour synthetic enamel paint or approved colour as directed including writing of SM/MES Number on transformer and transformer details on plinth in white enamel paint on black enamel paint back ground complete including one coat of white wash for base foundation complete all as directed.

Dismantling transformer step down out door type 11KV/433 Volts of capacity 100 to 500 KVA by disconnecting incoming /outgoing cables and ACSR jumpers, opening top end of thread unit by unscewing nuts/bolts washers and shifting to other location and reconnected the same as above , make funtional testing complete all as directed . Note :- Labour charge and provision of mobile crane unit for lifting /loading of the transfromer at one site to other site will be includes in items qouted rate.

Material and labour for painting surface of 11 metre long steel tubular pole complete with including all accessories such as cross arms, bracings, brackets etc, and applying two coats of aluminium paint including writing pole number with paint same as existing earlier complete all as directed.

Supply, laying ,commissioning and testing of XLPE insulated screened PVC bedded, galvanised steel strip or wire armoured, heavy duty electric power cable (HTUG), 11000 volts grade with stranded aluminium conductor of size 3 core 95 Sqmm (Earthed) including taking out existing unserviceable cable complete all as directed Note - Rate includes Megger testing of Cable.

All as per item No.58 described here-in-before but 3 core 120 Sqmm

Material and labour for cable jointing kit for 11KV (Earthed) grade cable for outdoor end termination heat shrink type joint complete with jointing material and accessories suitable for 3 core XLPE armoured aluminium conductor cable of size 95 Sqmm and testing after jointing including taking out unserviceable joint kit complete all as directed.

All as per item No.60 described here-in-before but 3 core 120 Sqmm

Material and labour for cable jointing kit for 11KV (Earthed) grade cable for indoor end termination heat shrink type joint complete with jointing material and accessories suitable for 3 core XLPE armoured aluminium conductor cable of size 95 Sqmm and testing after jointing including taking out unserviceable joint kit complete all as directed.

All as per item No.62 described here-in-before but 3 core 120 Sqmm

Material and labour for cable jointing kit for 11KV (Earthed) grade cable for out door straight through heat shrink type joint complete with jointing material and accessories suitable for 3 core XLPE armoured aluminium conductor cable of size 120 to 185 Sqmm and testing after jointing including taking out unserviceable joint kit complete all as directed.

All as per item No. 64 described here-in-before but 3 core 95 Sqmm

Supplying and laying synthetic Rubber insulated mats 3 mm thick for voltage upto 33 KV for electrical purpose as per IS 15652-2006, (superseding IS 5424) suitable for electrical shock safety of sizes 2m x 1m complete all as directed

M&L for block masonary transformer platform of size 2.0 mtr x 2.0 mtr with height 1.4 mtr above and 0.60 Mtr below GL consisting of cement concrete in foundation of PCC 1:4:8 Type D2 using 40 mm graded stone aggregate 100mm thick, PCC block masonary 1:3:6 in CM (1:4), moorum filling and consolidating inside the block masonery work, 100 mm thick sub base concrete with PCC 1:3:6 and 100 mm thick top PCC 1:2:4 type B2 & 15 mm plaster on outer side walls in CM(1:4) incl two coats of white wash and providing 4 Nos supporting channel of ISMC 100 of 2.0 Mtr long made of Fe 410 -W (Gde- E- 250) quality- A , shifting the transformer to New plateform and dismantling the old plateform of transformer and making good as per existing in yard complete all as directed. Note - cost of Disconnecting & reconnecting of transformer and Tools ,Crane for shfting of any capacity transformer shall be includes in qouted rates of items.

Excavation in trenches in soft/loose soil not exceeding 1.5 meter wide and not exceeding 1.5 meter in depth for laying of pipes/cables and for poles/stay/pipes/cables and struts or for shafts, wells, cesspits, manhole, pier holes not exceeding 10 Sqm on plan and n.exc 1.5m in depth and getting out, excavated earth, forming bottom surfaces to required level complete all as directed

Excavation in trenches in hard/dense soil not exceeding 1.5 meter wide and not exceeding 1.5 meter in depth for laying of pipes/cables and for poles/stay/pipes/cables and struts or for shafts, wells, cesspits, manhole, pier holes not exceeding 10 Sqm on plan and n.exc 1.5m in depth and getting out, excavated earth, forming bottom surfaces to required level complete all as directed

Excavating in trenches not exceeding 1.5m wide and exceeding 1.5m in but not exceeding 3.0m depth for laying of cable, foundation etc, and getting out in hard /dense soil all as directed.

Returning, filling in including spreading, leveling, watering and well ramming in layers not exceeding 25cm thick complete all as directed.

Removing surplus soil to a distance not exceeding 50 meter and depositing where directed at a level not exc. 1.5 meter above the starting point complete all as directed.

Boring of holes under road, pavement, hard standings by trenchless technology using ultra sound technique and necessary machine includings HDPE pipes of 100 mm dia suitable for 0.4 Mpa working pressure complete all as directed

Supply and laying sand river for cushioning with layers of sand 8 cm before lying of cable and 15 cm after lying of cable (total 23 cm) in trenches complete all as directed. Note: Thickness after punning shall be measured for payment

Supply and laying unreinforced precast concrete cable cover, class HVP, type- 1 with peak, size 300mmx180mmx40mm laid flat adjacent and abutting to each other across the length of cable laid dry complete all as directed.

Supply and laying reinforced precast concrete cable cover, class HV, type- 1, flat, size 300mmx180mmx40mm laid flat adjacent and abutting to each other across the length of cable laid dry complete all as directed.

Supply and fix galvanised iron tubing light grade 100mm bore with all fitting laid in trenches / road crossing for UG cable protection complete all as directed.

All as per item No.:77 described here-in-before but 150mm bore pipe

Dismantling concrete pole / steel pole / struts of any size complete all as directed.

Supply and fix steel tubular swaged poles complete with cast iron base plate, finial taper plug, bolts, nut and screws as specified for type 410 SP-55 (11.0 meters long) including two coats of aluminium paint over a coat of red oxide primer complete all as directed. Note : Necessary earth work excavation, removal of surplus soil & concrete shall be measured and paid separately in respective items.

Material and labour for plain cement concrete 1:4:8 type D2 using 40 mm graded stone aggregate for foundations / filling around the post, Poles etc complete all as directed.

Material and labour for plain cement concrete 1:3:6 type C1 using 20 mm graded stone aggregate for path ways, hard standing & pole coping including necessary form work and applying two coats of white wash on exposed surfaces complete all as directed.

Dismantling of unserviceable cross arm such as MS channel /angle section etc complete all as directed.

Material and labour for cross arms, bracings, supports, clamps and back plates, fabricated from structural steel including nuts, blots, washers, welding, bending cold or hot, drilling holes for bolts in any shape or size as indicated or directed inclusive of one primer coat, one under coat and one finishing coat of aluminum paint all as directed.

Dismantling insulators of any type and size complete all as directed.

Material and labour for pin type, porcelain vitreous, white, brown or green insulator including one galvanised mild steel spindle, two galvanised iron washers and one galvanised iron nut 150 mm height, 150mm dia for 11000 volts grade complete all as directed.

Dismantling air break gang operated switches vertical /horizontal mounted with two or three insulators per phase including insulators and operating mechanism for repair/ replacement of broken/worn out components complete all as directed.

Material and labour for switch air break, gang operated triple pole, mechanically operated (with GI operating rod), mounted on insulator and steel frame with operating mechanism worked from ground level, vertical type for current rating upto 200 Amps on HT 11000 volts working pressure, including locking arrangement with 06 lever lock and painting the steel surfaces with two coats of synthetic enamelled paint over a coat of red oxide primer etc complete all as directed.

Material and labour for switch air break, gang operated triple pole, mechanically operated (with GI operating rod), mounted on insulator and steel frame with operating mechanism worked from ground level, vertical type for current rating upto 400 Amps on HT 11000 volts working pressure, including locking arrangement with 06 lever lock and painting the steel surfaces with two coats of synthetic enamelled paint over a coat of red oxide primer complete all as directed.

Repair/service/overhauling of gang operating devices 11000 volts upto 400 Amps including greasing all the moving parts and applying white petroleum jelly at the contact points, tightening all nuts and bolts and prividing PG clamps 06 Nos, additional nut and bolts including dismantling and replacing all the unserviceable parts / spares complete all as directed. Note: Rates for items No 91 to 96 shall be paid as supply only as labour rate is included in this item.

Supply only moving contact blades complete all as directed

Supply only fixed contact jaw copper complete all as directed

Supply only copper braded tape (Thinner copper flexible jumper) complete all as directed

Supply only mild steel supporter complete all as directed

Supply only back connected plate complete all as directed

Supply only jumper carrier complete all as directed

Material and labour for replacement of expulsion / drop out / horn gap type fuse carrier assembly outdoor type 200Amps capacity including fuse element upto 25 Amps and insulator conforming to IS specifications suitable for 11000 volts (HT) complete all as directed

Material and labour for replacement of expulsion / drop out / horn gap type fuse carrier assembly outdoor type 200Amps capacity including fuse element above 25 Amps & upto 50Amps and insulator conforming to IS specifications suitable for 11000 volts (HT) complete all as directed.

Material and labour for jumper connections between GOD and drop out fuses and transformers with ACSR conductors of suitable size and length (Weasel) including necessary lugs wherever required / aluminium heavy duty PG clamps / binding properly without any loose contact after removing the old jumpers including PVC sleeves complete all as directed.

Material and labour for repair and servicing of HT 11 KV Four pole structure by replacing galvanized PG clamps, GI bolts and nuts, tightening 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 red oxide primer on rusted portions after preparation of surfaces &applying a coat of aluminum paint to the entire steel structure complete all as directed. Note: Quoted unit rate shall be inclusive of PG clamp for jumpering, GI hardware like nuts, bolts, two coats of white wash on exposed concrete surfaces, etc

All as per above item No: 100.00 described her-in-before but two pole structure

M&L in repalcement of aluminium conductor, steel reinforced of any size including binding wire and jumper connection with PG clamp made out of aluminium alloy according to IS-617 complete all as directed .

M&L for removing all connections, bindings etc of ACSR/AAC conductor on existing HT/LT poles & stretching of ACSR/AAC conductor upto required sag of any size and cross section of conductor and stretching of GI wire on existing pole including making necessary connection & binding with binding wire including cutting of tree branches from both sides upto minium clearance of 1 meter on each side complete all as directed.

M&L in replacement of u/s cradles, hexagonal/ rectangular fabricated with galvanised steel wire of size 4 mm dia complete all as directed.

Labour only for cutting of up grown branches of trees including making clearance of minimum 1 meter on both sides of over head conductor complete all as directed. (Note- Clearence of tree branches should be 5 meter apart from span)

M&L for defect rectification in HT 11 KV cable laid in trenches by locating fault with the help of electronic fault locator machine comprising of surge generator pulse ECHP fault location with high frequency distance calculator etc. including excavation in any type of soil strata exposing the cable fault removal of deteriorated position of cable treating of cable and keeping the same ready for jointing work for cables of size upto 300 Sqmm 3 core. The fault locating equipment will be brought to site within 02 hours of instruction received from Engineer-in-Charge complete all as directed. Note:- (i) The contractor shall bring the fault locating equipment at site with in 02 hours of instructions received from Engineer -in- charge and shall ensure that the fault is rectified within 24 hours of receipt of intimation from Engineer-in-charge failing which recovery of Rs. 500.00 per hour shall be recovered from the contractors dues w.e.f the time immediately after the expiry of 24 hours duration. (ii) For the purpose of payment one unit of “Each job” shall comprise of detection of faults in a particular stretch of cable which are identified in that particular stretch, irrespective of number of defects / faults in that particular stretch which are detected during fault detection and the contractor's unit rate quoted shall be deemed to include for the same and all such defects / faults which are detected in that particular stretch shall be considered as one unit. (iii.) Joints, jointing materials and cable required shall be measured and paid for separately.

M/S Akash Enterprises (BID ID -3105617)

ASSOCIATED BUILDCON LLP (BID ID -3118385)