REPAIR/MAINT OF APFC PANEL, AIR CIRCUIT BREAKER AND OTHER LOW VOLTAGE EQUIPMENTS SUCH AS MCCB, LT PANEL, ETC AT AF STN NAJAFGARH UNDER GE (AF) TUGHLAKABAD.

S&F in replacement of APFC 100 KVAR panel cubical consist of sheet metal steel enclosure of 2 mm thick totally enclosed dust proof duly painted with powder coated fully wired up and ready to connect lead & control lines complete all as specified and directed by Engr-in-charge comprising the following: (i) MCCB 160 A 25 KA 3 pole thermal -1 nos (ii) Capacitor duty contactor for 20 KVAR - 02 nos (iii) Capacitor duty contactor for 10 KVAR - 03 nos (iv) Capacitor duty contactor for 5 KVAR - 06 nos (v) Capacitor 20 KVAR - 2 nos (vi) Capacitor 10 KVAR - 03 nos (vii) Capacitor 5 KVAR -06 nos (viii) MCB 63 A 10 KA TP for 20 KVAR - 2 nos (ix) MCB 25 A 10 KA TP for 10 KVAR - 3 nos (x) MCB 16 A 10 KA TP for 5 KVAR - 06 nos (xi) APFC Relay 12 stage - 1 (xii) Indicating light red - 01 no (xiii) Auto manual selector switch - 11 nos (xiv) Digital volt meter (0-500 V) - 1 (xv) Digital amp meter (0-160 A) - 1 no (xvi) volt meter selector switch - no (xvii) Amp meter selector switch - 1 no (xviii) Indicator light R Y B - 3 nos (xix) CT 160/5 A - 3 nos make AE (xx) Bus bar 200 A 3 strip & N/L 100 A ALU-01 set (xxi) Enclosure suitable size - 01

M&L for APFC 65 KVAR panel in replacement of cubical consist of sheet metal steel enclosure of 2 mm thick totally enclosed dust proof duly painted with powder coated fully wired up and ready to connect lead & control lines complete all as specified and directed by Engr-in-charge comprising the following: (i) MCCB 100 A 25 KA 3 pole thermal -1 nos (ii) Capacitor duty contactor for 20KVAR - 01 nos (iii) Capacitor duty contactor for 10 KVAR - 04 nos (iv) Capacitor duty contactor for 5 KVAR - 01 nos (v) Capacitor 20 KVAR - 1 nos (vi) Capacitor 10 KVAR - 04 nos (vii) Capacitor 5 KVAR -01 nos (viii) MCB 63 A 10 KA TP for 20 KVAR - 1 nos (ix) MCB 25 A 10 KA TP for 10 KVAR - 4 nos (x) MCB 16 A 10 KA TP for 5 KVAR - 01 nos (xi) APFC Relay 12 stage - 1 (xii) Indicating light red - 01 no (xiii) Auto manual selector switch - 11 nos (xiv) Digital volt meter (0-500 V) - 1 (xv) Digital amp meter (0-160 A) - 1 no (xvi) volt meter selector switch - no (xvii) Amp meter selector switch - 1 no (xviii) Indicator light R Y B - 3 nos (xix) CT 160/5 A - 3 nos (xx) Bus bar 200 A 3 strip & N/L 100 A ALU-01 set (xxi) Enclosure suitable size - 01

Supply, fabrication, installation & commissioning of dust & vermin proof totally enclosed, outdoor type LT, 3 phase 4 wire feeder pillar box factory made (CPRI approved), double door cubical type of suitable size made by 3.15mm thick ms sheet with MS angle iron frame of size 40 x 40 x 6mm slanting roof, front door opening with locking arrangement complete painted with two coats of synthetic enamel paint over a coat of red oxide primer including necessary PCC, fixing with PCC 1:2:4 of size 0.2mx0.2mx0.2m for 4 Nos legs, inclusive of under mentioned items fixed inside with suitable arrangement vertically operated and internal connection with PVC insulated stranded single core copper cable of suitable size or using insulated copper strip of appropriate size and connection of all incoming and outgoing cable including extended the cable from cable loop if required using aluminium cable terminal sockets / lugs duly crimpled comprising of following:- INCOMING: (i) MCCB, AC 415 volts, adjustable thermal & adjustable magnetic setting, 4 pole current rating 400 Amps, breaking capacity 36 KA= 01 No (ii) 4 strip copper bus bar of size 40x10mm with specific colour (R,Y,B) insulation -01 set (iii) Metering panel comprising, voltmeter and ammeter, digital type with selector switches CTs, control fused and indicating lamps. OUTGOING: (i) MCCB, AC 415 volts, adjustable thermal & adjustable magnetic setting, 4 pole current rating 350 Amps, breaking capacity 36 KA= 01 No. (ii) MCCB, AC 415 volts, 4 pole current rating 200 Amps, breaking capacity 16 KA= 02 No’s. (iii) MCCB, AC 415 volts, 4 pole current rating 40 Amps, breaking capacity 10 KA= 02 No’s.

M&L in repairs of physical inspection for earthing health and to check the healthiness of earthing system whether the resistance under safe limits of resistance IF higher than the permissible then recharging of earthing should be done immediately with carbon based low resistivity compound 0.001 ohm meter recharging of existing earth pit by excavating soil up to electrode depth approx 10 feet by manual drilling (post hole) method and filling with backfill compound maintenance free earthing compound with 2 bags of 20 Kg to achieve desired resistance value less than 1 ohms in and including water up to top of the excavated bore, backfilling of earth pit, measuring the value after refilling pit and testing of earthing after recharging, reconnecting grounding electrode conductor and earth grid applying petroleum jelly etc. to bolted joints to minimise corrosion for the pipe earthing or plate earthing then gel should be used to lower down the resistance complete all as specified and as directed by Engr-in-charge. Notes : (i) In case of satisfactory results not found or results degraded during one year of recharging of the earthing, the same shall be made good / recharged again in order to have required test results within contract / Defect liability period without any extra cost to the department. (ii) Contractor will mark each earthing with CA No., date of recharging of earthing on MS sheet size 18"x12" x 1/8" with suitable mounting arrangement on wall or on ground duly painting blue over a coat of Red Oxide primer and letter/figures of words written with white colour. Quoted rate will be deemed to have been included the cost of the same. Make of backfill compound: Akaltech / Curenite

M&L for dismantling of old existing earthing PCC earthing pit with cover and S & F new polyplastic earth pit cover heavy duty with sign board triangular shape, making connection of earth strip including minor adjustment, construction of rectangular of size 0.75X0.75X0.50 (LXBXH) brick boundary alongwith necessary plastering work with specified colour coding around poly plastic earth pit cover, complete all as specified and directed by Engr-in-Charge.

S&F copper strip of size 32 mm x 6 mm for roof conductors and down conductors above ground including PVC insulators of pasting with suitable heat resistant gum type solution complete all as specified and directed by the Engr-in-charge. Note : Any type of screw / fasteners / grouting materials are strictily not recommended by station HQ.

S&F copper strip of size 20 mm x 3.15 mm for roof conductors and down conductors above ground including PVC insulators of pasting with suitable heat resistant gum type solution complete all as specified and directed by the Engr-in-charge. Note : Any type of screw / fasteners / grouting materials are strictily not recommended by station HQ.

M&L for copper brazing (welding) at site to connect loop copper earthing strip of any size after tightening by nut, bolt, washer, check nuts of brass complete all as specified and as directed by Engr-in-charge. Note: Copper brazing shall be done upto 20 mtr height. Necessary tool/plant and ladder required for working upto 20 mtr height shall be deemed to be included in the rate quoted for above item.

M&L for GI brazing (welding) at site to connect loop GI earthing strip of any size after tighten by nut, bolt, washer, check nuts, complete all as specified and as directed by Engr-in-charge. Note: GI brazing shall be done upto 20 mtr height. Necessary tool/plant and ladder required for working upto 20 mtr height shall be deemed to be included in the rate quoted for above item.

S&F in replacement of test point terminal block made of gun metal or phosphorus bronze of size 75x75x25 mm drilled and screwed including 3 Nos 8 mm dia 25 mm long hexagonal head screw fixed inside cubical shape enclosure made out of CRCA sheet 2 mm thick with front detachable cover, anodized screws, cap washers 4 Nos to be mounted on wall with wooden plugs and screws 4 Nos duly painted inside and outside by two coats of aluminium paint over a coat of primer over all dimension of enclosure 200x150x100 mm (depth) complete all as specified and directed by Engr-in-charge.