REPAIR/MAINT OF HT DISTRIBUTION SYSTEM, VCB, HT JOINTS, CABLE AND DEHYDRATION AND MAINT OF TRANSFORMER AT AIR FORCE STN PALAM UNDER

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

Returning filling in, including spreading, levelling, watering and well ramming in layers not exc 25 cm complete all as specified and directed.

Removing excavated material soil n.exc 50 m and depositing where directed at a level n.exc 1.5 mtr above the starting point complete all as specified and directed.

Supply and laying reinforced precast concrete cable cover, class HV,type 1,flat ,size 300 mm X 180mm X 40 mm of approved make complete all as specified and as directed.

Re-laying/re-routing of old serviceable reinforced precast concrete cable cover obtained at site class HV,type 1,flat ,of any size complete all as specified and directed. Note:- The quoted rate shall inclusive of taking out the old serviceable cover after excavation and stocking at near site.

M&L for sand filling in trenches for cushioning of cable up to the required thickness as per SSR or else where specified complete all as specified and directed.

M &L for demolition of cement concrete in ground floors and pavings n.exc 15 cm thickness (below or above ground level) complete all as specified and directed.

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

Supply and laying ISI marked 100 mm bore galvanised iron tubing, light grade with all fittings for passing of cables under ground complete all as specified and as directed.

Supply and laying ISI marked 80 mm bore galvanised iron tubing, light grade with all fittings for passing of cables under ground complete all as specified and as directed.

Boring of holes under road, pavement, hard standing for more than 5 mtr in length by trenchless, technology using ultra sound technique and necessary machine, including ISI marked HDPE pipe of 80 mm dia suitable for 0.4 mpa working pressure complete all as specified and directed.

Boring of holes under road, pavement, hard standing, drain etc by conventional method not exceeding 5 mtr in length for laying of cable for protection of pipe etc complete all as specified and directed.

M&L for cutting the existing bituminous road/payment/footpath upto 0.75 mtr in depth, 0.45 mtr in width and getting out excavated material and making good the damaged portion after laying the pipe, returning filling in mass concrete PCC 1:3:6 type C-1 upto top of the road of min 300 mm thick Over rammed earth complete all as specified and directed . Note :-(i) M&L for laying of pipe shall be measured and paid separately.

Taking down U/S cable of size 95 sqmm to 185 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 150 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 120 Sqmm 3 core, 11000 volts grade,after testing of inulation value obtained from from item No. 15 complete all as specified and directed. Note:- (i) The testing charge shall be included in quoted rate. (ii) The testing certificate shall be countersigned by GE before execution.

Supply and fixing triple pole mechanically operated air break isolator (GOD), vertical mounting, rotating type, mounted on insulator and steel frame with operating mechanism worked from ground level complete in all respect such as gun metal moving contacts and spring loaded gun metal fixed jaws, knife copper jumper strip etc, suitable for 11000 Volts grade, 50 Hz, with 12 insulator of rating upto 200 Amps including taking down existing GOD complete and removing from site complete all as specified and as directed.

S & F drop out fuse unit single pole mounted on insulator, 11000 Volts grade double pole steel frame of current rating 50 Amps including taking down existing drop out fuse unit complete and removing from site complete all as specified and directed.

S & F HT lightning arrestor for out door use expulsion type complete including taking down with all fittings, 65 Kilo amps discharge capacity, distribution class complete all as specified and directed.

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.

S & F HT UG cable PCC route marker of size 175mm width x150mm thickx 750 mm long dully written HT UG Cable, AGE E/M Palam with red strip marking of suitable size included embeded in earth with necessary PCC works 40cmx40cmx40cm complete all as specified and directed.

Supply, fixing and testing cold shrinkable type, straight through cable jointing kit, outdoor type suitable for XLPE insulated cable, upto 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 cold shrinkable type, straight through cable jointing kit, outdoor type suitable for XLPE insulated cable, upto 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 cold shrinkable type end termination cable jointing kit, outdoor type suitable for XLPE insulated 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 cold shrinkable type end termination cable jointing kit, outdoor type suitable for XLPE insulated 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 cold shrinkable type end termination cable jointing kit, indoor type suitable for XLPE insulated 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 cold shrinkable type end termination cable jointing kit, indoor type suitable for XLPE insulated cable, 50 to 95 Sqmm size 3 core, 11 KV, as fixed in repairs including taking out of old u/s jointscomplete all as specified and directed.

Finding out, locating and pin point the cable fault of any size and any capacity of cable from LT 1100 volt grade to 33000V with the help of cable fault loacator and with nessary disconnection of cable from two ends and connection after repairs and having the following items with electrician at site up to lenth of 1 KM cable complete all as specified and directed :- Note:- (a) Surge Generator with accessories-01 Nos, (b) Head Phone-01 Nos , (c) Pin Point Set T-505 with accessories-01 Nos, (d) Earthing cable with clamp-01 set, (e) Cable fault Locator T-905 with accessories-01 Nos, (f) TC-808 with accessories-01 Nos, (, g) Soldering Iron-01 Nos, (h) Soldering wire-01 Nos, (j) Plier-01 Nos, (k) Soldering paste-01 Nos, (l) Capacitor Unit-01 Nos, (m) Capacitor connecting cables-01 Nos, (n) Power cable-01 Nos, (o) Nose Plier-01 Nos, (p) Card for SSG-1100-01 Nos Note :- Transportation charges for shifting of cable fault locator will deem to be include in above said job and nothing extra on this account will be admissible. (ii ) The area of this contract is very critical for safety reason so as to contractor has to arrange 24X7 hours fault locating machine and jointing kit when fault occurs and when denied by the contractor, double of quoted rate as panelty will be imposed to contractor . (iii0 Fault to be located within 3 hours of report failing which penality @ Rs. 1000/- per hour to be charged for delay.

M&L for rewinding of burnt out HT/LT coils of transformer of capacity 100 KVA to 1500 KVA with super enamelled copper winding wire of existing gauge and proper number of turns alongwith insulating material i.e leatheroid, paper insulation, cotton tapes, empire tapes, wooden block packings, PVC sleeves, soldering and varnishing with insulating varnish , colding/drying etc complete all as specified and directed. Note :- (i) Transformer rewinding will be done at workshop of approved manufacturer available in PS . (ii) Transformer will be inspected by representative of CWE before and after repair.

Taking down/dismantling and refixing of any capacity of transformer by using Hydra mechine/suitable crane complete and including tranportation shifting to approved manufacturer/Workshop including testing and commissioning all as directed. (Note- Dismantling and disconnecting HT cable and LT cables and refixing after rewinding and Transportation from Palam (Area under GE (P) (AF) Gurgaon) to Workshop and workshop to Palam (Area under GE (P) (AF) Gurgaon) will be paid as one job) 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.

Replacement of breather assembly of approved make filled with silica gel suitable for transformers of following capacity :-

100 KVA to 200 KVA

300 KVA to 400 KVA

500 KVA to 630 KVA

Replacement of brass spindle for terminal on HT side threaded complete with nut, washers etc of suitable dia for transformers of following capaicty :-

100 KVA to 200 KVA

300 KVA to 400 KVA

500 KVA to 630 KVA

All as per item No 36 here-in-before but for LT side of transformers of folliwing capacity :-

100 KVA to 200 KVA

300 KVA to 400 KVA

500 KVA to 630 KVA

Replacement of ceramic bushing with Gasket on LT side of transformers of following capacities. Make : Mysore Potteries/BHEL

100 KVA to 200 KVA

300 KVA to 400 KVA

500 KVA to 630 KVA

All as per item No 38 above, but on HT side of transformer of following capacites :-

100 KVA to 200 KVA

300 KVA to 400 KVA

500 KVA to 630 KVA

Replacement of arc horn surge arrester complete with amounting ring, nut bolt etc of approved make suitable for transformers of following capacity :-

100 KVA to 200 KVA

300 KVA to 400 KVA

500 KVA to 630 KVA

Dehydration/filtration of transformer/STABILIZER oil by means of centrifugal filtration plant to achieve the specified dielectric strength of 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

Supply only transformer oil of approved quality (Dielectric strength not less than 40 KV) ISI marked for filling in transformer for topping up complete all as specified and directed. Note : (i) Only factory sealed container of transformer oil will be accepted. (ii) The payment shall be made after verification of submitted Purchase Vouchers by AGE E/M & GE.

M&L for painting of transformer after cleaning the body surface of transformer by rubbing with emery Ppper to remove oil stains, dust etc and applying two coat of synthetic enamel paint by spray paint incl writing SM No/MES No , capacity of transformers of following capacity complete all as specified and directed. The contractor has to arrange their own local generator for supply to the spray painting machine.

100 KVA to 200 KVA

300 KVA to 400 KVA

500 KVA to 630 KVA

Supply and fix top cover gaskets of any size Transformer 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 Transformer Rating from 100 KVA to 500 KVA 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 payment of 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. Make : L&T/Crompton/Ashida

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 Delco make 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. Make : L&T Cat No WR-300BC52RS or equivallent.of Secure/HPL

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.

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 of Contactor RT - 24VDC, suitable for RMU 11 KV, complete all as specified and directed. Make: ABB Ltd, Cat No.-NHSN710013P11

Replacement of of Close Push button, suitable for RMU 11 KV, complete all as specified and directed. Make: ABB Ltd, Cat No.-1SFA616199R1106

Replacement of of Open push button, suitable for RMU 11 KV, complete all as specified and directed. Make: ABB Ltd, Cat No.-1SFA616199R1104

Replacement of of Operating handle Standard, suitable for RMU 11 KV complete all as specified and directed. Make: ABB Ltd, Cat No.-1VDP000443R1

Supply and fix in replcement battery bank of capacity 24 V, consisting of (12 Nos) of 02 Volts Each 70 AH maintenance free "exide" make for system voltage 24 V, including disconnection of old U/S Battery bank complete all as specified and directed.

M&L for replacement of U/S DC Power pack with battery back up complete enclosed in a sheet metal enclosures size not less than 2mm thick duly compartmentlise for battries, charging system and control system with LED indicator lamps and toggle switch and push button ON/OFF system for charging, discharging etc as per requirement , front openable and lockable with proper ventilaation as per latest IS, suitable for supply of 24 volt DC 30 AH duly banked with 2 volt LED acid maintenance free battries including float and trickle battery charging system suitable for input single phase 220 volt/3 phase 440 volt 50 Hz AC supply including all electrical and control connection upto existing socket for charging and DC Supply to the existing VCBs upto 2 Nos. The connection of incomming and outgoing battery bank to VCBs willl be made by stranded copper conductor size not less than 2.5 sqmm for each core in case of multi core cable or single core cable PVC insulated unscoldhed cable duly drawn into medium grade PVC conduit on floor/wall complete all as specified and as directed. Location- Substation-1

Schedule of Credit as per statement attached in tender documents. Rs. 3,88,704.07 to be deducted from over all quoted amount.

RUHI ASSOCIATES

J B Electricals

Shiv Enterprises

Satish Kumar Gupta

Ridhi engineers and builders

Deep Contractor

shiv shanker enterprises