REPAIR/ MAINTENANCE TO HT DISTRIBUTION SYSTEM , HT JOINT CABLE AND MAINT OF TRANSFORMERS AT SEKHON VIHAR UNDER GE ( AF) GURGAON No 01.

Amount

Excavation in trenches n.exc 1.5 mtr wide and n.exc 1.5 mtr in depth and getting out hard/Dense soil complete all as specified and as directed for foundation of stay, laying of cable etc complete all as specified and directed.

Excavation in trenches in soft/loose soil not exceeding 1.50 Mtrs wide and not exc. 1.5 Mtr deep and getting out for taking out/laying cable, poles & stay etc, complete all as specified and as directed by Engineer-in-Charge.

Returning, filling in including spreading leveling, watering and well ramming in layers not exc 25 cm thick after the cable have been laid tested complete all as specified and as directed by Engineer-in-Charge.

Removal of excavated surplus soil to a distance n exc. 50 Mtrs and depositing where directed at a level not exc 1.5 Mtr above the starting point complete all as specified and as directed by Engr-in-charge.

M&L for sand cushioning to under ground cable provided with layer of sand (8cm deep before laying the cable and 15 cm deep after laying the cable ie total 23 cm) and 18cm punnd thickness shall be paid complete all as specified and as directed.

Supply and laying reinforced precast concreate cable cover, HV , flat size 450mm x 230mm x 50 mm for HT cable protection complete.

M&L for PCC 1:3:6 type C-1 using 20 mm graded stone aggregates for repairing / filling in road cuts/ hard standing etc all as specified and as directed.

M&L complete for drilling hole with trenchless technology under hard standing /road for laying of pipe for protection of cable etc by means of manual booklet and without disturbing the top surface or cutting and making good the disturbed surface to the existing if any, complete all as specified and directed by Engineer-in-Charge.

Supply and laying GI tube light grade 100 mm bore pipe with ISI marked fittings complete all as specified and directed by Engineer-in-Charge.

S&F GI Tubing light grade of size 80mm bore for LT cable protection including clamps, nut, bolts and washer etc complete all as specified and as directed by Engineer-in-charge.

Taking up/down U/S cable of size 95 sqmm to 240 Sqmm 3 core from trench, duct, wall, road and panel complete with necessary disconnection of electrical line complete all as specified and directed..

Supply, laying, jointing and testing in replacement of HT XLPE insulated ,screened,PVC bedded galvanised steel strip or wire armoured ,electric power cables(heavy duty) with aluminium conductor,11000 volts (earthed) , grade cross sectional area 95 sqmm 3 core for working voltage upto 11000 Volts, including cable lugs for providing connections as in repair complete all as specified and as directed.

Supply, laying, jointing and testing in replacement of HT XLPE insulated ,screened,PVC bedded galvanised steel strip or wire armoured ,electric power cables(heavy duty) with aluminium conductor,11000 volts (earthed) , grade cross sectional area 185 sqmm 3 core for working voltage upto 11000 Volts, including cable lugs for providing connections as in repair complete all as specified and as directed.

Supply, laying, jointing and testing in replacement of HT XLPE insulated ,screened,PVC bedded galvanised steel strip or wire armoured ,electric power cables(heavy duty) with aluminium conductor,11000 volts (earthed) , grade cross sectional area 240 sqmm 3 core for working voltage upto 11000 Volts, including cable lugs for providing connections as in repair complete all as specified and as directed.

Re-laying/re-routing serviceable HT cable of size 95 Sqmm to 240 Sqmm 3 core, 11000 volts grade,after testing of inulation value obtained from from item No. 10 complete all as specified and directed. Note:- The cabel will be laid after necessary testings only. Testing charge of cable shall be included in quoted rate.

M&L for defect rectification electric cable for HT cables laid in trenches by locating fault with the help of electronic fault locating machine comprising of surge generator pulse, ECHO fault locator with high frequency distance calculator etc. including and additional excavation in normal alluvial strata required for exposing the cable fault removal of deteriorated portion of cable treating of cable and keeping the same ready for jointing work for cable. The fault locating equipments will be brought to site within the hours of instruction from Engr-in-Charge. Joint shall be measured and paid seprately.

Supply, fixing and testing Cable jointing kit for 11 KV (Earthed) grade cable for straight through cold shrink type joint complete with jointing material and accessories suitable for 3 core XLPE armoured aluminium conductor cable, 50 to 95 Sqmm size 3 core, 11 KV, as fixed in repairs including taking out of old u/s joints complete all as specified and directed.

Supply, fixing and testing Cable jointing kit for 11 KV (Earthed) grade cable for straight through cold shrink type joint complete with jointing material and accessories suitable for 3 core XLPE armoured aluminium conductor cable, 120 to 185 Sqmm size 3 core, 11 KV, as fixed in repairs including taking out of old u/s joints complete all as specified and directed.

Supply, fixing and testing Cable jointing kit for 11 KV (Earthed) grade cable for straight through cold shrink type joint complete with jointing material and accessories suitable for 3 core XLPE armoured aluminium conductor cable, 240 to 300 Sqmm size 3 core, 11 KV, as fixed in repairs including taking out of old u/s joints complete all as specified and directed.

Supply, fixing and testing Cable jointing kit for 11 KV (Earthed) grade cable for indoor termination cold shrink type joint complete with jointing material and accessories suitable for 3 core XLPE armoured aluminium conductor cable, 50 to 95 Sqmm size 3 core, 11 KV, as fixed in repairs including taking out of old u/s joints complete all as specified and directed.

Supply, fixing and testing Cable jointing kit for 11 KV (Earthed) grade cable for indoor termination cold shrink type joint complete with jointing material and accessories suitable for 3 core XLPE armoured aluminium conductor cable, 120 to 185 Sqmm size 3 core, 11 KV, as fixed in repairs including taking out of old u/s joints complete all as specified and directed.

Supply, fixing and testing Cable jointing kit for 11 KV (Earthed) grade cable for indoor termination cold shrink type joint complete with jointing material and accessories suitable for 3 core XLPE armoured aluminium conductor cable, 240 to 300 Sqmm size 3 core, 11 KV, as fixed in repairs including taking out of old u/s joints complete all as specified and directed.

M&L for Earthing complete with galvanised steel earth plate electrode 60×60cm.× 6mm thick, buried directly in ground (earth pit not less than 2.25 metres deep below ground level) with top edge of the plate not less'than 1.5 metres below normal ground level, connected to galvanised iron strip 32×6mm as earthing lead by means of bolts, nuts, check nuts and washers of galvanised iron or steel all as shown in electrical plate No. 3 connected to earthing test point all as specified or indicated including testing on completion including provision of GI strip protected by 40 mm dia medium grade pipe and watering pipe shall be 20mm bore medium grade, and including all excavation and earth work & connecting the earthing to an earthing test point complete all as specified & directed by Engr-in-Charge.

S & F in replacement of HT 11000 volts Danger notice plate of size 25cm x 20cm made of 1.6mm thick mild steel plate, vitreous enamelled white, with letters, figures and conventional skull and bones in signal red colour and fixed with MS clamps, bolts and nuts of approved size complete all as specified and directed.

Disconnecting of all electric connection of defective distribution transformer 11/0.433 KV outdoor /indoor type , Opening top cover of transformer , taking out insulating oil upto lower level of bushing and keeping in clean & dry container (oil to be reused) for replacement of HT/LT Bushing , gaskets etc incuding refixing the same and refilling the drained out transformer oil complete, reconnection etc complete all as specified and directed. Note :- Spare part and repair will be measured and paid for separately.

Suppy and fixing in replacement of Dehydrating breather assembly complete with silica gel grains in the breather assembly suitable for transformers 1250 KVA complete as per matching to existing all as specified and as directed by Engineer in charge. Note : Silica gel will be brought in a sealed pack for use at site.

Suppy and fixing in replacement of brass spindle for terminal on HT side threaded for 1250 KVA package type transformer complete with nut, washers etc of suitable dia for transformers

Suppy and fixing in replacement of brass spindle for terminal on LT side threaded for 1250 KVA package type transformer complete with nut, washers etc of suitable dia for transformers

Suppy and fixing in replacement of ceramic bushing with Gasket on HT side for 1250 KVA package type transformer .

Suppy and fixing in replacement of ceramic bushing with Gasket on LT side for 1250 KVA package type transformer .

Suppy and fixing in replacement of arc horn surge arrester suitable for 1250 KVA package type transformer complete with mounting ring, nut bolt etc .

Dehydration/filtration of transformer/STABILIZER oil by means of centrifugal filtration plant to achieve the specified dielectric strength more than 40 KV at 2.5 mm gap in existing position of transformer/stabilizer of any capacity and transformer oil for topping up at various sub station complete all specified and as directed. NOTE: Transformer oil for TOP UP shall be measured and paid separately under respective item of this schedule

M&L for transformer oil having dielectric strength not less than 45 KV complete all as specified and as directed by Engr-in-charge.

Taking shut down from main substation and drain out the transformer oil and to be collected in barrel by opening the transformer cover of capacity 1250 KVA by unscrewing the nuts/bolts and washers and kept in safe custody and reuse the same, and checking the any type of leakage from both HT and LT side including cleaning the sludge etc depositing in the core and tank by using soft brushes and clean with old transformer oil, refilling of transformer oil including refixing of top cover including nut/bolts etc and testing the input & output voltage and adjustment of the voltage through tap changer if required complete all as specified and as directed by Engr-in-charge.

M&L for painting of transformer/stabilizer after cleaning the body surface of transformer/ stabilizer by rubbing with emery paper to remove oil stains, dust etc and applying one coat of synthetic enamel paint by spray paint complete all as specified and directed. The contractor has to arrange their own electric supply arrangements for supply to the spray painting machine.

Supply and fix top cover gaskets of any size Transformer/stabilizer of any capacity after taking down unserviceable gaskets from the top cover of transformer complete all as specified and directed.

M&L for replacement of Off load tap changer of 1250 KVATransformer as per the existing make of transformer complete all as specified and directed.

Material and Labour for synthetic rubber insulation mat confirming to IS 15652/2006, 2.5 mm thick, suitable for 11 KV (size 2Mx1M) substation all as specified and as directed. Note:- The contractor shall submit the manufacturer test report of material.

Caliberation of Micro processor based numerical relay by conducting primary injection on rescpective CTs and secondary injection tests on relays,checking of current transformer including CTR Ratio, IR Value, CT Secondary Resistance Measurement Test, rectifiation of defects in control wiring for proper tripping of circuit breakers through CTs, relays and tripping coils,adjustment/setting of the relay to restrict fault to upstream breakers,re-installation of the relay in circuit complete all as specified and as directed. NOTE:- (a) The contractor shall provide necessary testing kits, testisng equipments,tools etc and shall also prepare the detailed test reports panel wise duly bound and submit to the department. Rate for the kits and equipment is deemed to be included in rate quoted. Testing and turning shall be carried out in the presence of Engineer-in-Charge to the satisfaction of department, failing which payment for the above item will not be made to the contractor. No claim from the contractor be enterained on this account. (b) Rate is inclusive of setting the parameters in differential relay and connecting after carrying out necessary polarity tests etc (C) This item includes all routine test of VCB for proper tripping in case of fault and tripping time should be set lesser than GE (U) Delhi Sekhawati Grid end so as to fault will not feed back to GE (U) Delhi Sekhawati Grid . The contractor has to collect the data of tripping time from GE (U) Delhi Sekhawati Grid and tripping time should be set lesser timing in our end. All control wiring of VCB should be cleaned and serviced and change the unserviceable part as per directed by Engr-in-Charge. The u/s item will be paid sepeartely. (d) Contractor will take the prior permission for shutdown of HT Line in written at least one week in advance for getting permission from user by MES to avoid any administration issue. Note- The test should be done by authorised dealer of VCB.

Taking down the HT vacuum circuit breaker of capacity up to 800A, of any make, 11 KV, for servicing and re-assembling complete, comprising of the following including testing and commissioning to the entire satisfaction of Engineer-in-Charge. Note: Quoted rate is inclusive for the following services:- (i)Taking out the VCB from the enclosure & checking the serviceability of the following parts carefully including cleaning, adjustments and re-assembling the unit complete. (ii) Cleaning the external surface of bushings with CTC/CRC to remove the accumulation of dirt or any other deposits. Inspection of bushings and make sure that vibration due to breaker operation have not caused the bushings to move resulting misallignment of contacts. (iii) Checking the breaker bushing of bus bar and circuit side inspecting the interval surface carefully for any charging/trackings,replacement of bushings. (iv) Dismantling the spring charging mechanism of the VCB, checking the operations of the closing/tripping trough closing/tripping coils electrically as well as manual charging including cleaning adjustments complete for the following. (v) Checking the condition of the spring charging motor along with gear box including servicing to the motor commulator bushes, lubrication of bearing surfaces etc. (vi) Cost of additional hardware like, bolts, nuts , washers and spring washers, petrolium jelly ctc, to put the breaker in serviceable condition is deemed to be included in the rates quoted. (vii) Making functional by carrying out minor repairs all the non functional circuits and indicating system like VCB Trip, CB ON, CB OFF, CB Service, Spring Charging etc (viii) Test shall include IR, CRM and time Test. (ix) Contractor will take the prior permission for shutdown of HT Line in written at least one week in advance for getting permission from user by MES to avoid any administration issue. Note : The u/s item will be paid sepeartely. Note- The test should be done by authorised dealer of SF6.

Replacement of TCS Relay, suitable for 11 KV VCB complete with necessary electricial connection.

Replacement of 11 KV CTs Dual Core , Dual Ratio 100/5+5, Class 0.5 and 5P10 suitable for 11 KV VCB complete with necessary electricial connection.

Replacement of TNC switch, suitable for 11 KV VCB complete with necessary electricial connection.

Replacement of Spring Charging motor of capacity 20 V to 30 V DC, suitable for 11 KV VCB complete with necessary electricial connection.

Replacement of Big Gear, Small Gear and & Half Gear Set assembly suitable for VCB 11 KV complete with all mechanical connection complete

Replacement of Motor charged mechanasim assembly and charging handle suitable for VCB 11 KV, with all mechanical connection complete

Replacement of LED indicatorrs suitable for 11 KV VCB complete with necessary electricial connection

Replacement of Push Button suitable for 11 KV VCB complete with necessary electricial connection

Replacement of Vaccum Interrupter suitable for 11 KV VCB complete with necessary electricial and mechanical connection

Replacement of Housing for Vaccum Interrupter suitable for 11 KV VCB complete with necessary electricial and mechanical connection

Replacement of Hooter suitable for 11 KV VCB complete with necessary electricial and mechanical connection

Replacement of trivector meter suitable for 11 KV VCB complete with necessary electricial and mechanical connection.

Replacement of Insulator 60x130 suitable for 11 KV VCB complete with necessary electricial and mechanical connection complete all as specified and directed.

Replacement of Insulator 75x130 suitable for 11 KV VCB complete with necessary electricial and mechanical connection complete all as specified and directed.

Replacement of Spout suitable for 11 KV VCB complete with necessary electricial and mechanical connection complete all as specified and directed.

Replacement of Jaw Contact suitable for 11 KV VCB complete with necessary electricial and mechanical connection complete all as specified and directed.

Replacement of HRC Fuse 6A/10A suitable for 11 KV VCB complete with necessary electricial and mechanical connection complete all as specified and directed.

Replacement of 11 KV PT Fuse 6A/10A suitable for 11 KV VCB complete with necessary electricial and mechanical connection complete all as specified and directed.

Replacement of HRC Fuse holder suitable for 11 KV VCB complete with necessary electricial and mechanical connection complete all as specified and directed.

Replacement of Auxiliary switch suitable for 11 KV VCB complete with necessary electricial and mechanical connection complete all as specified and directed.

Replacement of 32 way pin plug and socket suitable for 11 KV VCB complete with necessary electricial and mechanical connection complete all as specified and directed.

Replacement of space heater suitable for 11 KV VCB complete with necessary electricial and mechanical connection complete all as specified and directed.

Replacement of thermostate suitable for 11 KV VCB complete with necessary electricial and mechanical connection complete all as specified and directed.

Replacement of Limit Switch suitable for 11 KV VCB complete with necessary electricial and mechanical connection complete all as specified and directed.

Replacement of closing/triping coil suitable for 11 KV VCB complete with necessary electricial and mechanical connection complete all as specified and directed.

Replacement of Anti Pumping device suitable for 11 KV VCB complete with necessary electricial and mechanical connection complete all as specified and directed.

Replacement of megawin spout suitable for 11 KV VCB complete with necessary electricial and mechanical connection complete all as specified and directed.

Material and Labour for decarbonsing/cleaning the cable compartment of Ring Main Unit 3 Way, 11 KV, consists of End joints,Current transformers, cable boots, bushings, by opening compartment cover by carefully switching off the main input cable supply and necessary switching ON of Earth switch of RMU thereby inspecting the end joints, current transformer, bushings and cable boots, checking the bushings for any flash overs/tracks, applying Becktol red solution to the bushings having moderate tracking, applying suitable HT insulated tape over anti tracking tube to prevent further tracking on, cleaning of end joints, CTs & cable boots with CTC and ensure proper decarbonisation and re-assembling complete all as directed.

Replacement of Contactor RT - 24VDC, as per existing make of CG suitable for RMU 11 KV complete all as specified and directed.

Replacement of of Close Push button, as per existing make of CG suitable for RMU 11 KV complete all as specified and directed.

Replacement of Open push button, as per existing make of CG suitable for RMU 11 KV, complete all as specified and directed.

Replacement of Operating handle Standard, as per existing make of CG suitable for RMU 11 KV complete all as specified and directed.

Replacement of SF6 gas pressure gauge, as per existing make of CG suitable for RMU 11 KV complete all as specified and directed.

Replacement of live line indicator, as per existing make of CG suitable for RMU 11 KV complete all as specified and directed.

Replacement of fault passage indicator, as per existing make of CG suitable for RMU 11 KV complete all as specified and directed.

Replacement of cable compartment door, as per existing make of CG suitable for RMU 11 KV complete all as specified and directed.

Replacement of insulating boot, as per existing make of CG suitable for RMU 11 KV complete all as specified and directed.

Replacement of f DPX relay for current transformer (80-150/1A) , as per existing make of jCG suitable for RMU 11 KV complete all as specified and directed.

Replacement of mechanical emergency trip push button, as per existing make of CG suitable for RMU 11 KV complete all as specified and directed.

Supply and Fix in replacement of SF-6 gas in safe ring/safe plus by SF-6 gas bottle by removing front cover and on screw manometer and reduction valve and maintained the pressure 14 bar obslute complete all as specified and directed by Engineer-in-Charge.

Supply and Fix in replacement of ring type current transformer as per existing type & make for SF-6 Ring Main unit by opening the cable compartment cover of fixed the CT on cable elbow plug/T plug complete all as specified and directed by Engineer-in-Charge.

Taking down unserviceable MCCB from existing transformer panels, by disconnecting the cable connection from MCCB complete all as specified and directed by Engr-in-Charge.

S&F MCCB 4 pole, 400 A, with Microprocessor release breaking capacity 36 KA fixed in package type transformer panels, complete all as specified and as directed by Engr-in-charge.

M&L for coarse aggregates, grading l, 90 to 40 mm size or grading 3, 50 to 20 mm size granite for spreading on ground for MES sub stations complete all as specified.

Schedule of Credit

Shiv Enterprises

M/S Anand Enterprises

Chankaya Solutions

Ridhi engineers and builders