REPAIR AND MAINT OF 33 KV GIS PANELS 11 KV VCB PANEL 33/11 KV POWER TRANSFORMER OUTGOING 33/11 KV UG CABLES AND CONNECTED ITEMS OF KHYBER GRID UNDER AGE (U) SLDC ELECT SUPPLY UNDER GE (U) ELECT SUPPLY DELHI CANTT-10

Material and labour for servicing /testing of 33 KV GIS panel including CT, PT and relays in 33 KV GIS panel of capacity 1250 Amp and rating 33 KV complete as details mentioned as under ( 04 Nos in comer , 03 Nos Bus coupler , 07 Nos outgoings, 04 Nos Transformers outgoings , 03 Nos Bus riser. (a) Details of servicing of breaker :- (i) Adjustment of mechanism if required. (ii) Clean the circuit breaker to remove dust and dirt. The envelope of the vacuum interrupter and insulating materials shall be wiped with a clean cloth. (iii) Apply a small amount of oil to rotary sections, sliding surfaces, pins, coupling section, etc.use grease for the operating shaft and bearings, and machine oil for other parts. (iv) Check for rust and wear. (v) Check Spring Tension and pitting of the Cluster Contacts. (vi) Visual check for rust and deformation. (vii) Check for loosened bolts and nuts, broken spring washers and snap pins etc. (viii) Check for loosened connections, rust, damaged lead wires. (ix) Check whether the contacts are damaged by arcing. (x) Checking of control circuit & tighten the connections if any. (xi) Check close & trip coil.

(xii) Checking of Jaw Contacts Conditions and repair/adjust. (xiii) renew the jaw contacts,If required. (xiv) Improvement of resistance of epoxy insulator and epoxy body by applying post heated varnish. (xv) renewal of Dashpot/shock absorbers . (xvi) renewal of carbon brush of spring charging motor (b) The following test shall be carried out:- (i) Primary Injection Test of CT / PT (ii) Closing & Opening Timing Test for all three poles. (iii) IR Test with megger in open and closed condition. (iv) Contact resistance test for all three poles (v) Closing coil resistance (vi) Tripping coil resistance. (c) Testing of following relays of control panel with Secondary Injection Kit ,checking and programming of relay :- (i) Over current and earth fault relay (d) Testing of followig Aux relay (i) DC Supply supervision relay. (ii) Master trip relay

Material and labour for servicing /testing of breaker/control panel including CT, PT and relays in control panel of VCB of capacity 1200 /800/630 Amps and rating 11 KV complete as details mentioned as under (a) Details of servicing of breaker :- (i) Adjustment of mechanism if required. (ii) Clean the circuit breaker to remove dust and dirt. The envelope of the vacuum interrupter and insulating materials shall be wiped with a clean cloth. (iii) Apply a small amount of oil to rotary sections, sliding surfaces, pins, coupling section, etc.use grease for the operating shaft and bearings, and machine oil for other parts. (iv) Check for rust and wear. (v) Check Spring Tension and pitting of the Cluster Contacts. (vi) Visual check for rust and deformation. (vii) Check for loosened bolts and nuts, broken spring washers and snap pins etc. (viii) Check for loosened connections, rust, damaged lead wires. (ix) Check whether the contacts are damaged by arcing. (x) Checking of control circuit & tighten the connections if any.

(xi) Check close & trip coil. (xii) Checking of Jaw Contacts Conditions and repair/adjust. (xiii) renew the jaw contacts,If required. (xiv) Improvement of resistance of epoxy insulator and epoxy body by applying post heated varnish. (xv) renewal of Dashpot/shock absorbers . (xvi) renewal of carbon brush of spring charging motor (b) The following test shall be carried out:- (i) Primary Injection Test of CT / PT (ii) Closing & Opening Timing Test for all three poles. (iii) IR Test with megger in open and closed condition. (iv) Contact resistance test for all three poles (v) Closing coil resistance (vi) Tripping coil resistance. (c) Testing of following relays of control panel with Secondary Injection Kit ,checking and programming of relay :- (i) Over current and earth fault relay (d) Testing of followig Aux relay (i) DC Supply supervision relay. (ii) Master trip relay

Testing the cables with high voltage DC testing machine and locating the fault in the cables by fault locating machine to pin point exact position of fault, disconnecting faulty 33 KV HT cables of different sizes from both ends, removal of Fault, Re-connections and testing of cables after removal of fault complete all as specified and directed. Note-: (a) 33/11 KV HT cable & joints shall be measured and paid for seperately under respective items of schedule. (b) Retrieved old serviceable cable cover will be laid in trenches for cable protection. If extra PCC cover and sand required at site shall be measured and paid separately under respective items of BOQs. (c) Excavation and earth work will be measured and paid for seperately under respective items of schedule.

Material and labour for emergency maintenance work of 33 KV yard during breakdown by deploying skilled labourer and electricians at faulty site having Gang of minimum 6 persons and transportation including hydraulic machine and other tools and plant required at site for fault rectification. Note:- Contractor or his rep shall come to the site of breakdown within one hour of notification of breakdown . In case the rep or contractor shall not come to the site of breakdown and start attending breakdown within 1.00 hour a penalty of Rs 1000 per fault per hour will be imposed over contractor and will be deduct from his dues.

-Ditto- all as per srl Item No 4 here-in -before above but Gang of minimum 3 persons except hydraulic machine.

Supply, Laying, jointing, testing and commissioning of 33 KV (earth) grade XLPE insulated electric power cable of size 400 Sqmm 3 Core (Heavy duty) with straded compacted circular aluminium conductor screened with extruded semi- conducting compound in combination with copper tape, cores laid up, inner sheeath of thermoplastic tape, PVC bedded galvanised steel strip, armoured and overall FRLS PVC sheathed confirming to IS-70298, Part-II with latest amendments laid in cable Ducts/Trays/Tranches/Encased in GI pipe/RCC/DWC HDPE pipes complete all as specified and directed.

Supply, Laying, jointing, testing and commissioning of 33 KV (earth) grade XLPE of size 300 Sqmm 3 Core (Heavy duty) with straded compacted circular aluminium conductor screened with extruded semi- conducting compound in combination with copper tape, cores laid up, inner sheeath of thermoplastic tape, PVC bedded galvanised steel strip, armoured and overall FRLS PVC sheathed confirming to IS-70298, Part-II with latest amendments laid in cable Ducts/Trays/Tranches/Encased in GI pipe/RCC/DWC HDPE pipes complete all as specified and directed.

Supply, Laying, jointing, testing and commissioning of 11 KV (earth) grade XLPE of size 300 Sqmm 3 Core (Heavy duty) with straded compacted circular aluminium conductor screened with extruded semi- conducting compound in combination with copper tape, cores laid up, inner sheeath of thermoplastic tape, PVC bedded galvanised steel strip, armoured and overall FRLS PVC sheathed confirming to IS-70298, Part-II with latest amendments laid in cable Ducts/Trays/Tranches/Encased in GI pipe/RCC/DWC HDPE pipes complete all as specified and directed.