GE (P) AF/GUR-77/2020-21 SPECIAL REPAIRS TO HT POWER SUPPLY SYSTEM AT 13 BRD AF STN PALAM UNDER GE (P) AF GURGAON

Amount

M&L for defect rectification HT 11 KV cable 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 of size up to 185 Sq mm 3 core complete all as specified and as directed by Engr-in-charge.

M&L for cable jointing kit for 11 KV (Earthed) grade cable for straight through heat shrink type joint complete with jointing material and accessories suitable for 3 core XLPE armoured aluminium conductor cable of size 50 Sqmm to 95 Sqmm in replacement of the old unserviceable one complete all as specified and as directed by Engr-in-charge.

All as per item No 2 here in before but suitable for cable size 120 to 185 Sqmm.

M&L for cable jointing kit for 11 KV (Earthed) grade cable for outdoor termination heat shrink type joint complete with jointing material and accessories suitable for 3 core XLPE armoured aluminium conductor cable of size 50 Sqmm to 95 Sqmm in replacement of the old unserviceable one complete all as specified and as directed by Engr-in-charge.

All as per item No 4 here in before but suitable for cable size 120 to 185 Sqmm.

M&L for cable jointing kit for 11 KV (Earthed) grade cable for indoor termination heat shrink type joint complete with jointing material and accessories suitable for 3 core XLPE armoured aluminium conductor cable of size 50 Sqmm to 95 Sqmm in replacement of the old unserviceable one complete all as specified and as directed by Engr-in-charge.

All as per item No 6 here in before but suitable for cable size 120 to 185 Sqmm.

Supply, installation, commissioning and testing of HT 11 KV, 3 phase, 50 Hz totally enclosed metal clad switchgear complete with Vacuum circuit breaker having rupturing capacity 350 MVA of rating upto 800 Amp capacity in replacement to the old VCB including taking the old VCB and shifted to store for stacking for strip inspection and declaring the same BER complete all as specified and as directed by Engr-in-charge.

Supply, installation, commissioning and testing of bus coupler for VCB HT 12 Kv, 3 phase, 50 Hz totally enclosed metal clad bus of 1200 Amps rating complete with installation and suitable coupling to existing VCB 11 KV, of make ABB, Vmax 12 08 20 model complete all as specified and as directed by Engr-in-charge.

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 if required, 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 complete all as specified and as directed by Engr-in-charge. Note: (i) The various unsv items required to be replaced shall be paid seperately under item No. 11.10 to 11.80 (ii) Calibration of relays shall be paid seperately under item No. 12 (iv) The VCB shall be got tested after neccessory repairs to the satisfation of Engr-In-Charge & test report to be kept as record.

M&L for replacement of fixed contact block complete suitable for 630/800 Amps, 11 KV HT VCBs complete all as specified and as directed by Engr-in-charge. CAT Part No 522/SP of Make : CG

M&L for replacement of moving contact block complete suitable for 630/800 Amps 11 KV HT VCBs complete all as specified and as directed by Engr-in-charge. CAT Part No 524/SP of Make : CG.

M&L for replacement of mechanical castle interlock assembly with key suitable for HT 11 KV VCB of rating 630 Amps complete all as specified and as directed by Engr-in-charge. CAT Part No 539/SP of Make : CG.

M&L for replacement of closing coil assembly 230 volts AC/ 24 volts DC, complete all as specified and as directed by Engr-in-charge. CAT Part No 598/SP of Make: CG.

M&L for replacement of Tripping coil with plunger assembly 230 volts AC/24V DC, complete all as specified and as directed by Engr-in-charge. CAT Part No 599/SP of Make : CG.

M&L for replacement of closing coil plunger with 24 volts DC, complete all as specified and as directed by Engr-in-charge. CAT Part No 604/SP of Make : CG

M&L for replacement of spout bushing 11 KV for VCB complete all as specified and as directed by Engr-in-charge.

M&L for replacement of HT 11 KV PT HRC Fuse complete all as specified and as directed by Engr-in-charge. CAT Part No 9418/SP of Make : CG.

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 of Sekhawati line for proper functioning complete all as specified and as directed by Engr-in-charge.

Supply, fixing, stringing and tightening of ACSR conductor of HT/LT poles complete including taking out old conductors complete all as specified and as directed by Engr-in-charge.

Labour only for taking down existing GOD , 11 Kv complete with dismantling of existing unserviceable insulators and mechanism complete all as specified and making good the crossarm etc. for installing new GOD in replacement complete all as specified and as directed by Engr-in-charge.

M&L for switch air break, Gang operated Triple pole, mechanically operated, mounted on insulator and steel frame, with operating mechanism worked from ground level for current rating upto 200 Amps, 11000 Volts grade complete all as specified and as directed

Labour only for shifting of panel vertically at existing position with the help of manual labour after carefully taking shutdown and rack out operation and disconnecting all incoming and outgoing cables, scrapping bottom for any accumulation of dust or vermin and cleaning surface of floor for reinstallation of VCB or bus coupler complete and cleaning of trench/ duct to make it free from all dust or soil accumulation and rearranging all cables in a neat cabling discipline with specified/ permissible bend etc. and covering the trench/ duct with MS sheet 8 mm thick cut to shape and impact punched to make a hole of not more than 10 mm bore all as specified and as directed complete and carefully relocating the panel in a location not exceeding 0.50 m from existing position all as directed by Engr-In-Charge. (Note: Mild steel plate shall be paid seperately in sl item no 17)

Material only for mild steel plates plain or chequered, 5mm thick or over in thickness in available sizes of Fe 410-W (Gde-E-250) quality - A complete all as specified and as directed by Engr-in-charge.

Excavating in trenches, n. exc. 1.5 m wide and n. exc. 1.5 m in depth; for foundation, etc. or for shafts, wells, cesspits, and for taking out of cables n exc 10 Sq m on plan and n exc 1.5 m in depth and getting out in soft loose soil complete all as specified and as directed by Engr-in-charge.

Removing excavated material n. exc. 50 m and depositing where directed at a level n. exc. 1.5 m above the starting point in soils complete all as specified and as directed by Engr-in-charge.

Returning, filling in, including spreading, levelling, watering and well ramming in layers not exc 25 cm in soft/ loose soil complete all as specified and as directed by Engr-in-charge.

Material and labour for sand at location complete all as specified and as directed by Engr-in-charge.

Supply and laying un-reinforced precast concrete cable cover, class HVP, Type 1 with peak, size 300 mm X 180 mm X 40 mm size complete all as specified and as directed by Engr-in-charge.

Taking out the cable and re-laying the same in same/other location from excavation and seggregating the bricks meant for cable protection and stacking the same for measurement before crediting it to the contractor complete all as specified and as directed by Engr-in-charge.

Note:- The amount of Rs 15,760/- against Schedule of Credit on Page No 117 shall be deducted from the total amount quoted against Sch 'A' while deriving the Contract Sum for Acceptance.

JAMDAGNI ENGG WORKS

Ridhi engineers and builders