REPAIR/MAINT OF RING MAIN UNIT, VCB AND CONNECTED ACCESSORIES AT TECHNICAL AREA, BRD AF STN UNDER GE (AF) TUGHLAKABAD

Amount

Excavation in trenches in soft/loose soil not exc 1.50 mtrs wide and not exc. 1.5 mtr deep and getting out for taking out/laying cable pole &stay etc including taking out old precast concrete cover complete all as specified and directed.

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

Removal of excavated surplus soil to a distance not exc. 50 mtr away and depositing where directed at a level not exc 1.5 mtr above the starting point complete all as specified and directed.

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 after punning down sand cushioning will be 18 cm complete all as specified and directed . Note : 18 cm thick only will be considered for payment purpose.

M&L for precast concrete cover class HV type 1, flat size 300mmx180mmx40mm laid in trenches for cable protection complete all as specified and directed .

Supply, laying testing and commissioning in replacement trenches /passing through pipes/ on poles etc cable XLPE insulated, screened, PVC bedded, galvanised steel strip or wire armoured, electric power cables (heavyduty) with stranded aluminium conductor, 11000 volts, grade of size of cable 300 sq mm 3 core suitable for earthed system including taking out unserviceable cable complete all as specified and directed .. Note :- (Excavation & Earth work, Sand cushioning and precast concrete cover shall be measured and paid separately under relevant items of BOQ).

Supply, laying testing and commissioning in replacement trenches /passing through pipes/ on poles etc cable XLPE insulated, screened, PVC bedded, galvanised steel strip or wire armoured, electric power cables (heavyduty) with stranded aluminium conductor, 11000 volts, grade of size of cable 185 sq mm 3 core suitable for earthed system including taking out unserviceable cable complete all as specified and directed .. Note :- (Excavation & Earth work, Sand cushioning and precast concrete cover shall be measured and paid separately under relevant items of BOQ).

Supply, laying testing and commissioning in replacement trenches /passing through pipes/ on poles etc cable XLPE insulated, screened, PVC bedded, galvanised steel strip or wire armoured, electric power cables (heavyduty) with stranded aluminium conductor, 11000 volts, grade of size of cable 120 sq mm 3 core suitable for earthed system including taking out unserviceable cable complete all as specified and directed .. Note :- (Excavation & Earth work, Sand cushioning and precast concrete cover shall be measured and paid separately under relevant items of BOQ).

Disconnecting both ends of the faulty HT cables of any size and isolating from panel , bringing the HT fault finding machine to site to pinpoint the location of occurance of fault , connecting one end of the HT cable to the machine , energising the cable giving high voltage through the machine to locating the fault , after locating the fault , de-engergise the cable using earth rod ,remove the ends of cable from the machine, Excavating the cable at the fault location & pinpoint the fault, repairing the cable using cable jointing kits and by adding extra HT cable if required at site, jopinting the cables as before to the panel and testing complete all as specified and as directed. NOTE :-i) Fault finding machine, necessary excavation and earth work, as reuired at site T&P, labour element are included in the quoted rates. ii) HT joints / HT cable(if reqd) will be measured & paid under respective item of schedule. iii) The contractor shall bring the fault locating equipment at site with in 02 hours of instruction received from Engineer-in-charge and he shall ensure that the fault is rectified with in 24 hours of receipt of intimation from Engineer-in-charge failing which recovery of Rs 500 per hour shall be recovered from the contractor dues w.e.f the time immediately after the expiry of 24 hours duriation. 4. For the purpose of payment one unit of éach job'shall comprise of detection of faults in a particular stretch of cable which are identificed in that particular stretch, irrespective of number of defects/faults in that particular stretch which are detected during fault detected in that particular stretch shall be considered as one unit.

Supply and jointing cold shrinkable straight through joint with jointing material suitable for HT 11KV XLPE cable of size 240 to 400 Sq mm 3 core complete all as specified and directed .

Supply and jointing cold shrinkable straight through joint with jointing material suitable for HT 11KV XLPE cable of size 120 to 185 Sq mm 3 core complete all as specified and directed .

Supply and jointing cold shrinkable straight through joint with jointing material suitable for HT 11KV XLPE cable of size 50 to 95 Sq mm 3 core complete all as specified and directed .

Supply and jointing heat shrinkable straight through joint with jointing material suitable for HT 11KV XLPE cable of size 120 to 185 Sq mm 3 core complete all as specified and as directed

Supply and jointing heat shrinkable straight through joint with jointing material suitable for HT 11 KV XLPE cable of size 240-300 sqmm 3 core complete all as specified and as directed

Supply and jointing heat shrinkable straight through joint with jointing material suitable for HT 11 KV XLPE cable of size 50 to 95 sqmm 3 core complete all as specified and as directed.

Supply and jointing outdoor termination heat shrinkable joint with jointing material suitable for HT 11KV XLPE cable of size 240 to 300 Sq mm 3 core complete all as specified and as directed.

Supply and jointing outdoor termination heat shrinkable joint with jointing material suitable for HT 11KV XLPE cable of size 120 to 185 Sq mm 3 core complete all as specified and as directed.

Supply and jointing outdoor termination heat shrinkable joint with jointing material suitable for HT 11KV XLPE cable of size 50 to 95 Sq mm 3 core complete all as specified and as directed.

Taking out trolley of vacuum circuit breaker 630/800 Amps 11 KV from the cabinet and opening top cover, de-carbonizing moving and fixed contacts servicing, lubricating, inspecting the wiring of Micro processor EF/OC relay, tripping coil electrical and checking for manual/auto tripping system complete and placing back the breaker trolley in its original position all as specified and as directed . Note: (i ) The repair work shall be carried out by authorised service Engineer of DENSON/ CROMPTON GREEVES complete all as specified and directed by Engr-in-charge. (i) The various unsv items required to be replaced shall be paid seperately. (ii) Calibration of relays shall be paid seperately. .

S&F in repair fixed contact block complete suitable for 630/800 Amps, 11 KV HT VCBs as per existing make at site complete all as specified and directed.

S&F in repair moving contact block complete suitable for 630/800 Amps 11 KV HT VCBs as per existing make at site complete all as specified and directed.

S&F in replacement mechanical castle interlock assembly with key suitable for HT 11 KV VCB of rating 630 Amps as per existing make at site complete all as specified and directed.

S&F in repair closing coil assembly 230 volts AC/ 24 volts DC, as per existing make at site complete all as specified and directed.

S&F in replacementTripping coil with plunger assembly 230 volts AC/24V DC, as per existing make at site complete all as specified and directed.

S&F in replacement closing coil plunger with 24 volts DC, as per existing make at site complete all as specified and directed.

S&F in replacement spout bushing 11 KV for VCB complete all as specified and directed.

S&F in replacement HT 11 KV PT HRC Fuse as per existing make at site complete all as specified and directed.

Callibration of microproccessor E/F and O/C relay of VCB complete and calibrating with portable relay test kit to set time and fault level and adjustment of setting with according to load & time with main grid for proper functioning complete all as specified and directed by Engr-in-Charge.Note: (i ) The repair work shall be carried out by authorised service Engineer of YDENSON/ CROMTON GREEVES complete all as specified and directed.

S&F in replacement in replacment of Vaccum interruptor type WL-33379 (4 inch dia) suitable for HT VCB 630/800 Amps as per existing make at site complete all as specified and directed.

S&F in replacement trip push button suitable for HT 11 KV OCB/VCB complete all as specified and directed..

S&F in replacement of indicator lamp LED with holder (R/Y/B in colour) complete all as specified and as directed .

S&F in replacement of CT operated digital ampere meter 0 to 200 Amps flush pattern square type suitable to mounted on existing HT panel complete all as specified & directed.

S&F in replacement of shunt trip coil 30 volts DC for HT 11KV OCB/VCB all as specified and directed

Supply & Fix in replacement motor and gear assembly 11KV AC/24V DC UMG-14 type as per existing make at site complete all as specified and directed.

Supply & Fix in replacement of isolating contact assembly suitable for 630 Amps HT VCB as per existing make at site complete all as specified and directed.

S&F in replacment of Power pack with battery backup 11KV AC/30V DC &nconnected to HT PT secondary circuit including testing for triping complete. Make: Areva/Electromotive/Power pack all as specified and directed by Engineer-in-Charge.

Supply and installations as in replacement of voltage transformer (PT) 3 phase, 3 limb indoor type primary voltage 11 KV and secondary voltage 110 volts type VA class complete all as specified and directed.

Supply & Fix in replacement Digital protective 3 phase over current and earth fault relay for HT 11 KV VCB/OCB panel with high set and RS-485 MC61C complete with connection and testing on full load, all as specified and directed by Engineer-in-Charge. Make AREVA/L&T/C&G.

Supply & Fix in replacement of Digital protective 3 phase over current and earth fault relay with high set with CT rating 5A 2 NO+2NC model MC61A complete for HT 11 KV OCB/VCB panel and connection and testing on full load, Make AREVA/L&T/C&G all as specified and directed by Engineer-in-Charge.

Supplly & Fix in replacement of Master trip relay suitable for working voltage 30 Volt DC and connecting the circuit with existing over current and earth fault relas complete all as specified and directed.. Make:Areva/Alstom/crompton

S&F in replacement of volt meter 0-15 KV PT operated anloge type of size 150mmx150mm meter suitable to mount on existing HT panel. complete all as specified and directed.

S&F in replacement of maintenance free fully charged Nickle cadmium battery 60 Ah, 12 volts complete all as specified and as directed.

Opening the front and rear cabinate of the RMU 3 way/5 way 630/800 Amps 11 KV de-carbonizing moving and fixed contacts if required, lubricating, checking the pressure of SF-6 gas, inspecting the wiring of micro processor EF/OC relay, tripping coil electrical and checking for manual/auto tripping system complete and placing the SF-6 VCB and isolating unit in its original position all as specified and as directed . Note:(i ) The repair work shall be carried out by authorised service Engineer of MERLIN GERIN/ SCHNEIDER complete all as specified and directed by Engr-in-charge. (i) The various unsv items required to be replaced shall be paid seperately (ii) Calibration of relays shall be paid seperately

S&F in replacement plug in type voltage presence indicator system (VPIS) type WIM for 11 KV, RMU complete all as specified and directed. Make: MERLIN GERIN/ SCHNEIDER

S&F in replacement SF-6 Ring Main unit fuse 11 KV by opening fuse canisters of RMU positioned behind interlocking cover complete all as specified and directed. Make: MERLIN GERIN/ SCHNEIDER

S&F in replacement terminal contact piece with silicone coupling for SF-6 Ring Main unit 11 KV by opening the terminal cover complete all as specified and directed . Make: MERLIN GERIN/ SCHNEIDER

S&F in replacement pressure indicator manometer for SF-6 Ring Main unit 11 KV by opening the front cover complete all as specified and directed by Engineer-in-Charge. Make: MERLIN GERIN/ SCHNEIDER

S&F in replacement ring type current transformer 100/1 Amps for SF-6 Ring Main unit 11 KV 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. Make: MERLIN GERIN/ SCHNEIDER

S&F in replacement ring type current transformer 50/1 Amps for SF-6 Ring Main unit 11 KV 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. Make: MERLIN GERIN/ SCHNEIDER

S&F in replacement 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.Make: MERLIN GERIN/ SCHNEIDER

S&F in replacement Trifurcation boot 11 KV capacity for cable termination joint of RMU incoming and outgoing terminals including taking out old defective trifurcation boot complete all as specified and directed by Engineer-in-Charge.Make: MERLIN GERIN/ SCHNEIDER

S&F in replacement HT bushing with gaskit for SF-6 Ring main unit 11 KV complete all as specified and directed by Engineer-in-Charge. Make: MERLIN GERIN/ SCHNEIDER

Callibration of microproccessor E/F and O/C relay of RMU complete and calibrating with portable relay test kit to set time and fault level and adjustment of setting with according to load & time with main Tech area power house incl replacement of relay battery for proper functioning complete all as specified and directed by Engr-in-Charge.Note: (i ) The repair work shall be carried out by authorised service Engineer of MERLIN GERIN/ SCHNEIDER complete all as specified and directed .

Supply & Fix in replacement of earth fault protection and indicator relay for Ring main unit including callibrating the relay with existing load and tripping timming complete Make :Crompton Model EMG-1 complete all as specified and directed by Engr-in-Charge.

M & L for Earthing complete with copper plate electrode 60cm×60cm.×3.15mm thick electrode and 20×3mm copper strip as earthing lead 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, up to 7.5 meter long by means of bolts, nuts check nuts and washers of all galvanised iron or steel all as shown in electrical plate No.3 of SSR Part-1 and connected to test point including necessary excavation/ earth work in any type of soil/rock strata, funnel with wire mesh and watering pipe(GI,light grade) 20mm dia,PCC pit with 50mm thick PCC cover etc. including testing on completing but excluding GI protection pipe for earthing lead all as directed at site.

Supply and jointing outdoor termination heat shrinkable joint with jointing material suitable for HT 11KV XLPE cable of size 240 to 300 Sq mm 3 core complete all as specified and as directed.

Supply and jointing outdoor termination heat shrinkable joint with jointing material suitable for HT 11KV XLPE cable of size 120 to 185 Sq mm 3 core complete all as specified and as directed.

Supply and jointing outdoor termination heat shrinkable joint with jointing material suitable for HT 11KV XLPE cable of size 50 to 95 Sq mm 3 core complete all as specified and as directed.

Supply and jointing outdoor termination heat shrinkable joint with jointing material suitable for LT 1100 volts XLPE cable of size 240 to 300 Sq mm 3.5 core complete all as specified and as directed.

Supply and jointing outdoor termination heat shrinkable joint with jointing material suitable for LT 1100 volts XLPE cable of size 120 to 185 Sq mm 3.5 core complete all as specified and as directed .

Supply and jointing outdoor termination heat shrinkable joint with jointing material suitable for LT 1100 volts XLPE cable of size 50 to 95 Sq mm 3.5 core complete all as specified and as directed .

Supply, Spread & levelling 40mm graded stone aggregate inside the outdoor substation yard all as specified and as directed.

Supply & Fix in replacement K-mechanism for 11 KV Ring Main unit ABB Make, including taking out old unserviceable mechanism and testing complete all as speciifed and as directed.

M & L in replacement for mild steel plates/ duct cover Fe-410-W (Gde -E-250) plain or chequered as in duct covers including cutting , fabricate, cut to existing sizes including taking out the rusted plates all as specified and as directed.

Cutting removing the vegetation growth and surface dressing all around the installation yard including two pole structure areas, around power house, substation (external only) to keep always installation clean and tidy all as specified and as directed.

M&L cement concrete type B- 1, 1:2:4 using 20mm graded crushed stone aggregate in mass concrete complete all as specified and directed.

M & L in replacement GI tubing 'Light' grade for cable protection fixed in poles/walls/laid under roads/crossing etc incl taking out the rusted pipes of size 100mm dia all as specified and directed

M & L for boring of holes under road, pavement, hard standing by trenchless technology using ultra sound technique and necessary machine including HDPE pipe of 110mm dia suitable for 0.4mpa working pressure complete all as specified and directed.

Schedule of Credit

Neeraj Enterprises

M/S Anand Enterprises

M/s Prakash Enterprises

Deepak Electricals

M/S Delhi Engineering Co.