REPAIR/ MAINT OF LT PANEL, CAPACITOR BANK, INCLUDING CONTROL EQUIPMENTS AND OTHER WORKS AND REPAIR/ MAINT OF VCBS, RMU, TRANSFORMERS INCLUDING SERVO VOLTAGE STABILIZERS AND ALLIED WORKS AT AF STN NAJAFGARH UNDER GE(AF) TUGHLAKABAD

Amount

Taking down the existing old LT panel board/ LT feeder pillar box comprising of MCCB & switch fuse unit of any capacity and size including aluminium bus bar, ammeters, voltmeters etc after disconnecting all cable connections and removing from site complete all as specified and directed by Engr-in-charge.

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 Make : Cat No IHLLSEB0400 of Hevells/Cat No CM94101OOR1OG of L&T

Taking out the Air Circuit Breaker LT 415 volts up to 800 amps from existing position, dismantling the same, overhauling/ maintenance/repair the same including replacement of minor spares, assembling the same to the existing position, adjustment of load and testing complete all as specified and directed by Engr-in-charge.

S&F in replacement of cable jointing kit and testing for 11 KV grade cable for outdoor termination, heat shrink type joint with jointing material and accessories suitable for 3 core XLPE armoured aluminium conductor cable of size 120 Sqmm to185 sqmm complete all as specified and directed by Engr-in-charge. Make : Cat No MHOx11KV E 3C of 3M/Cat No EPKT3362 of Rychem/or equivalent of Denson

All as per item No 4 but indoor type complete all as specified and directed by Engr-in-charge. Make : Cat No MHIx11KV E 3C of 3M/Cat No EPKT3111 of Rychem/or equivalent of Denson

All as per item No 4 but straight through complete all as specified and directed by Engr-in-charge. Make : Cat No MHSx11KV E 3C of 3M/Cat No EPKJ3252 of Rychem/or equivalent of Denson

Dismantling of mechanism system of defective 11 KV VCBs, repair/replace the unserviceable items such as closing/tripping coil, vacuum interrupter tube, moving contact and spring charging motor etc including overhauling the same by the service engineer after necessary cleaning with CTC, and providing silicon grease to the all moving parts including adjustment of all springs etc and made 100% serviceability and testing complete. Note:- closing/tripping coil, vacuum inter rupture tube, moving contact and spring charging motor shall be measured and paid separately.

S&F in relacement of closing/tripping coil suitable for 11 KV VCB’s complete all as specified and directed by Engr-in-charge. Make as per of existing VCB

S&F in relacement of spring charging motor of 230 volts 0.25 HP, 8000 RPM suitable for 11 KV VCB's complete all as specified and directed by Engr-in-charge. Make as per of existing VCB

S&F in relacement of vacuum interrupter tube suitable for 11 KV VCB’s complete all as specified and directed by Engr-in-charge. Make as per of existing VCB

S&F in relacement of moving contact top/bottom suitable for 11 KV VCB’s complete all as specified and directed by Engr-in-charge. Make as per of existing VCB

M&L for insulating materials for applying 11 KV busbar insulators, CT’s & PT's for better insulation resistance of the system after necessary cleaning with Carbon Tetra chloride chemical complete all as specified and directed by Engr-in-charge.

Taking out of defective /unserviceable /obsolete model indicator lamp from 11 KV VCB's, supply and fix indicator lamp LED type of different colour of existing, 60 mm dia 30 volts complete all as specified and directed by Engr-in-charge.

M&L for Spray painting outside for 11 KV VCB's panel/bus coupler with one coat of synthetic enamel paint 1st grade (moisture proof) after preparation/ cleaning of the old steel surfaces complete all as specified and directed by Engr-in-charge.

S&F in replacement of busbar insulators suitable for 11 KV VCB's complete all as specified and directed by Engr-in-charge. Make as per of existing VCB

Taking out of old unserviceable/defective/old vintage/ obsolete model of relays from 11 KV VCB's and S&F over current and earth fault electronic relay suitable for 11 KV, VCB including necessary addition/ alternation of VCB front panel including cutting/welding of front side of panel board to match & fixed the new relays to the existing panel board/position including necessary touch up to the panel board, testing of over load and earth fault protection complete all as specified and directed by Engr-in-charge. Make as per of existing 11 KV VCB

Calibration, injecting and testing in artificial way for over load and earth fault IDMT relay at 11 kv switch gear complete all as specified and directed by Engr-in-charge.

S&F in repairs of HT volt meter (0-15 KV) digital squire flush types of size 96x96 mm complete all as specified and directed by Engr-in-charge. Make: L&T/AE/Rishab/Kaycee

Supply and installation S&F in replacement of 11 KV single phase in door resin cast PT of ratio 11 KV/rt3/110v/rt3, class 0.5-3, burden 50 VA-50VA complete all as specified and directed by Engr-in-charge. Make as per of existing 11 KV VCB

S&F in replacement of DC power pack 230 VCA +- 10%, 50Hz 24 V DC/26AHDC complete all as specified and directed by Engr-in-charge. Make as per of existing VCB

Supply and installation S&F in replacement of 11 KV single phase in door resin cast CT of ratio 50/25/5 amps (dual core - one for metering and other for protection) having 16 VA burdon and class 5P-10 protection complete all as specified and directed by Engr-in-charge. Make as per of existing VCB

S&F aluminium socket and lugs after disconnecting from panel and taking down burnt cable from panel of different location and cutting out the burnt portion of cable and extended the cable from cable loop including excavation, filling of soil, preparation of cable including necessary connection and testing complete of following sizes:- Make: Dowells/Jainson

10 Sqmm 2/4 core 1100 volt grade

16 Sqmm 2/4 core 1100 volt grade

25 Sqmm 3.5 core 1100 volt grade

50 Sqmm 3.5 core 1100 volt grade

95 Sqmm 3.5 core 1100 volt grade

120 Sqmm 3.5 core 1100 volt grade

240 Sqmm 3.5 core 1100 volt grade Note for sch item Nos 23.10 to 23.70: Excavation and earth work if any required shall be measured and paid separately under relevant items.

Taking out the unserviceable MCCB’s of any type any capacity by disconnecting all electrical connections from Panel board/wall /FPB and S&F the following MCCB's with Adjustable Thermal & Adjustable Magnetic with necessary fixing arrangment, connecting and testing complete all as directed at site for the following sizes:-

125 Amps 3 Pole breaking capacity 25 kA. Make: Cat No. IHLASDC30125 of Havells/ Legrand/ ABB

160 Amps 4 Pole breaking capacity 25 kA. Make: Cat No. IHLANDC40160 of Havells/ Legrand/ ABB

250 Amps 4 Pole breaking capacity 36 kA. Make: Cat No. IHLLSEC40250 of Havells/ Legrand/ ABB

400 Amps 4 Pole breaking capacity 50 kA. Make: Cat No. IHLLNFC40400 of Havells/ Legrand/ ABB

630 Amps 4 Pole breaking capacity 50 kA. Make: Cat No. IHLLNFC40630 of Havells/ Legrand/ ABB

Opening the upper cover of voltage stabilizer motor operated of capacity 400 kVA after disconnection of electric connection and taking out of electronic circuit card (PCB), trigger transformer 9 and 18 Volts disconnection and fixing new PCB card, contactor and trigger transformer 9 and 18 Volt complete including reconnection and assemble the same after repair and testing complete all as specified and directed by Engr-in-Charge.

Dismantling of defective GOD switch 200/400 amps capacity and repairs to the same including replacement of Male & Female metal contact, arcing horn and all rusted GI nuts, bolts & washers including proper connection of ACSR conductor/cables and necessary greasing etc to make 100% serviceability and proper functioning of GOD switch complete all as specified and directed by Engr-in-charge.

S&F in replacement of danger notice plate of 1.6 mm thick mild steel sheet, vitreous enameled white, with letters, figures and conventional skull and bones in signal red colour and fixed with MS clamp, bolts and nuts of size, for HT, 25x20 cement mortar complete all as directed and specified by the Engr-in-Charge

Taking out old unserviceable underground cable from excavated trenches/pipes/pole complete all as specified and directed by Engr-in-Charge. Note: Necessary earth work if any required shall be measured and paid separately.

Supply and lay/fixing/passing through pipe cable XLPE (FRLS) with aluminium conductor with heavy duty stranded,1100 volts size of 95 Sqmm 4 Core. Note:- XLPE insulated pvc sheathing (heavy duty) armoured cable with aluminium conductor for working pressure up to and including 1100 volts to IS -7098 (Part-I) for PVC insulated cables with following features :- (a) Cable shall have fire retarded low smoke (FRLS) compounded added to it in the out sheathing as per IEC 754 (part-I) IEC-60332 part-2 IFEE 383 ASTM 2x43 and ASTM 2X63 flame retardant compound (PR) as per EIC specification. (b) Inner sheathing shall be of extruded PVC. (c) Heat resisting PVC shall also be added to extrude inner and outer sheathing (d) Cable shall also be supplied with sequences hall marking at every meter as the outer sheathing. (e) Ultra violet radiation resistances compounded comprising ton ASTMG-53. (f) Anti rodent and ant termite compound added. (g) PVC compounds of various grades as IS-5831. (h) Compaction conductors shall be shaped and arrangement for the same with be on the cable Note:- (i) Each cable shall be tested for all applicable routine tests as per IS-5831,IS-7098 BS-6746,BS-5467 and IEC 60502 and test reports shall be provided to GE. (ii) Type test as per relevant specification shall produce to GE. Make universal/cable corporation of India/Havell,s/ Polycab/Nicco

All as per item ser No 29 here-in-above but size 70 Sqmm 4 Core.

Excavation in trenches in soft/loose soil, not exceeding 1.5 mtr wide and not exceeding 1.5 mtr deep and getting out in soft/loose soil for laying of cable/foundation of pole and stay etc in complete all as specified and directed by Engr-in-charge.

M&L for sand cushioning in trenches for protection of LT underground cable including watering and consolidation as per SSR Part-I complete all as specified and directed by Engr-in-charge. Note: Punned thickness shall be measured for payment purpose.

Supply and laying well burnt sub class ‘B’ bricks, locally available of size 23x11.5x7.5 CM in trenches for protection of the underground cable complete all as specified and directed by Engr-in-charge.

Removing the excavated materials not exceeding 50 mtr and depositing where directed at a level not exceeding 1.5 mtr above ground level from starting point complete all as specified and directed by Engr-in-charge.

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

M&L complete for drilling hole under hard standing /road for laying of pipe for protection of cable etc by manual booklet without disturbing the top surface and making good the disturbed surface if any complete all as specified.

Supply and laying GI pipe medium grade 80 mm bore complete all as specified and directed by Engr-in-charge.

M&L in replacement for earthing complete with copper earth plate 600 x 600 x 3.15 mm thick buried directly in ground (earth pit not less than 2.25 mtr deep below ground level) with top edge of the plate not less than 1.5 mtr below normal ground level, connected to copper strip of size 20 x 3 mm by means of bolts, nuts check, nuts and washers including charcoal dust common salt including necessary excavation in soft loose soil returning filling in and removal of surplus soil to a distance up to 50 m, PCC pit in cement concrete 1:3:6 type C1 by using 20mm grade stone aggregate, precast RCC cover shall be provided in RCC 1:2:4 type B-1 by using 20mm grade stone aggregate, 40mm thick pit cover reinforced with 8mm dia TMT bars 75mm c/c both ways, MS handle 12mm dia, PGI funnel wire mesh and GI watering pipe of 20mm bore (light grade) and earth lead protection pipe 40mm bore (light grade) GI pipe for earth lead protection, including earth work complete, all as per Electrical Plate No 3 of SSR Part-I, complete all as specified and directed by Engr-in-Charge. Note:- Copper strip and protection pipe of 40 mm dia upto 7.5 meter length are deemed to be included in the quoted rate.

M&L for 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 may be done and measured the value after refilling pit and testing of earthing after recharging, reconnect grounding electrode conductor and earth grid. also apply petroleum jelly etc. to bolted joints to minimize corrosion If the earth pit is of pipe earthing or plate earthing then gel should be used to lower down the resistance complete all as specified and directed by the Engr-in-charge.

Note: (i) In case of satisfactory results not found or result degraded during one year of recharging of 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. Make of backfill compound: Akaltech/Curenite (ii) contractor will mark each earthing with CA No., date of recharging of earthing on MS sheet size 450x300x3mm thick 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 and quoted rate shall be deemed to be included for the same aspect. (iii) Record shall be maintained of all the earth pits with the testing date, results of checking and the qty of compound filled on each earthing. Entire physical inspection process shall be carried out alongwith users rep and shall be signed by users rep, Egr-in-charge, contractor and JE concerned and the same shall be kept in record for verifications.

M&L for dismantling of old existing earthing PCC earthing pit with cover and Supply and fixing 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 0.75 X0.75x0.50 (L X B X H) 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.

Taking down horizontal/vertical conductor al/copper strip of any size from roof, floor and wall including protection pipe and removing from site complete all as specified and directed by the Engr-in-charge.

S&F copper strip of size 32 mm x 6 mm with all fixing arrangements such as clamps/MS screws/saddles/PVC gutka/ Brass Nut bolt/Porcelain insulator & washers etc complete all as specified and directed by the Engr-in-charge.

S&F copper strip of size 20 mm x 3.15 mm with all fixing arrangements such as clamps/MS screws/saddles/ PVC gutka/ Brass Nut bolt/Porcelain insulator & washers etc complete all as specified and directed by the Engr-in-charge.

S&F in replacement of lightning conductor air termination, single pointed copper rod 12 mm dia and 300 mm long including fixing of MS clamps with nuts & bolts and screws complete all as specified and directed by the Engr-in-charge.

S&F in replacement of test point terminal block made of gun metal or phosphorus bronze size 75x75x25 mm drilled and screwed including 3 nos 8mm dia 25 mm long hexagonal head screw fixed inside cubical shape enclosure made out of CRCA sheet 2.0 mm thick with front detachable cover, anodized fixing screws, cap washers 4 Nos to be mounted on wall with wooden plugs & screws 4 nos, duly painted inside and outside by two coats of aluminium paint over a coat of primer of over all dimension of enclosure 200mm x 150mm x 100mm (depth) complete all as specified and directed by the Engr-in-charge.

Testing of earthing Resistance as and when required with digital earth resistance tester etc in presence of user & MES rep and maintaining duly entering test results in the binding register for maintaining the record with Engr-in-charge complete all as specified and directed by the Engr-in-charge. Note: (i) Contractor shall carry out within two days of intimation to carry the test as a whole or partially of the building complete all as directed by Engr-in-charge. (ii) Earth testing will be carried out as and when required basis as directed by Engr-in-charge. (iii) Each earthing will be measured and paid separately as and when test was carried out.

M&L in replacement for providing Chemical Earthing with copper earth plate 900mmx600mmx5mm thick including accessories and providing masonry enclosure with cover plate having locking arrangement and watering pipe etc complete with alternate layer of salt crystal and charcoal and Magnesium sulphate crystal as specified below: (a) The earth pit should be of minimum 12 ft depth and 4 ft width. (b) The copper plate should be of 900x600mm and 5mm thick. (c) The copper strip should be of 32mmx6mm dimension (cross section) up to 7.5 mtr. (d) The quantity used should be:- (i) Charcoal - 250 Kg (ii) Salt crystal - 200 Kg (iii) Magnesium sulphate crystal - 100 Kg (e) 20mm dia GI pipe of enough length to reach just above copper plate fitted with funnel, meshed along with cap and running water should be provided for keeping the soil wet approx one mtr GI pipe be kept out side for connection of running water. (f) The pit shall be constructed in PCC 1:2:4 type B1 by using using 20mm grade stone aggregate, RCC slab shall be provided in RCC 1:2:4 type B-1 by using 20mm grade stone aggregate, 50 mm thick pit cover reinforced with 8mm dia TMT bars 75mm c/o both ways MS handle 12mm dia, PGI funnel wire mesh and GI watering pipe of 20mm bore light grade and earth lead protection pipe up to 7.5 mtr 50 mm bore light grade shall be including the item.

(g) Necessary test certificate shall be submitted by contractor from the NABL or CPRI certified labs. Note: The contractor will render a guarantee of 24 years for satisfactory working/effectivness of earthing from the certified date of completion from manufacturer firm/ executing agency. The guarantee amount towards effectiveness of earthing equal to 5% of cost of item in BOQ in the form of FDR in favour of GE (AF) Tughlakabad shall be furnished by the contractor. The matured amount after period of 10 years (which is maximum period of FDR) again will be guarantee amount for next 10 years and thereafter i.e. after 20 years matured amount will be guarantee amount for next 04 years. Matured amount after 20 years will be given as guarantee amount for next 04 years to meet cost of inflation for time to time which will be released after satisfactory expiry of guarantee period by the GE.

M&L in replacement for earthing complete with copper earth plate 600 x 600 x 3.15mm thick buried directly in ground (earth pit not less than 2.25 mtrs deep below ground level) with top edge of the plate not less than 1.5 mtr below normal ground level, connected to copper strip of size 20 x 3 mm by means of bolts, nuts check, nuts and washers including charcoal dust common salt including necessary excavation in soft loose soil returning filling in and removal of surplus soil to a distance up to 50 m, PCC pit in cement concrete 1:3:6 type C1 by using 20mm grade stone aggregate, precast RCC cover shall be provided in RCC 1:2:4 type B-1 by using 20mm grade stone aggregate 40mm thick pit cover reinforced with 8mm dia TMT bars 75mm c/c both ways, MS handle 12mm dia, PGI funnel wire mesh and GI watering pipe of 20mm bore light grade and earth lead protection pipe 40mm bore light grade GI pipe for earth lead protection, including earth work complete, all as per Electrical Plate No 3 of SSR Part-I, complete all as specified and directed by the Engr-in-charge. Note:- copper strip and protection pipe of 40 mm dia upto 7.5 metre length is deemed included in the rate quoted.

Dehydration of transformer oil, obtained from transformers / voltage stabilizer etc. Dielectric strength shall not be less than 40 KV in 2.5 mm gap electrode after dehydration. Dehydration of transformer shall be carried out by using electrically operated dehydration machine including replacement of unserviceable silica gel and toping up/ replacement of unserviceable transformer oil complete all as specified and directed by the Engr-in-charge. Note: Transformer oil for filling/toping up and Silica gel shall be measured and paid against respective item

Supply, filling & topping up of transformer/voltage stabilizer oil of dielectric strength 40 KV and above in transformer at different location in situ (testing of oil shall be carried out in presence of Engr-in-charge by an authorized agency and testing certificate shall be submitted duly signed complete all as specified and directed by the Engr-in-charge.

Supply and replacement of Silica gel of superior quality of size 5 to 10 mm complete all as specified and directed by the Engr-in-charge.

Balancing the load of LT 415 Volt overhead/underground system of any bldg/feeder/panel board in any location by providing skilled tradesman & helper with necessary safety and working equipment such as clamp meter, high voltage meager tools, safety belts, hand gloves, crimping tool, other required tools and plants and rectified the unbalance load on top priority basis/as and when required including testing complete all as specified and directed by the Engr-in-charge.

M&L for painting to the electrical equipments, steel sections, rolling shutters etc with two coats of synthetic enamel paint with machine spray including preparation/ cleaning of the old steel surfaces exceeding 10 cm width complete all as specified and directed by the Engr-in-charge. Make: Buger/ Asian/Nerolac

S&F in replacement of 3-layer PP-R Polypropylene random copolymer pipes SDR 7.4 (PN-16) UV stabilized and antimicrobial fusion welded having thermal stability for hot & cold water supply including all PP-R plain & brass threaded polypropylene random fittings of dia 25 mm for passing of cables to be fixed on pole with MS clamp of flat iron 20 x 3mm with MS bolts, nuts & washers at a distance of 1.5 m including fixing accessories complete all as specified and directed by the Engr-in-charge.

Supply, install, testing and commissioning single pole lightening arrestor rated 11 kV for system highest voltage of 12 kV of gapless metal oxide type discharge current 10 kA class distribution complete with all accessories and including necessary connection and fittings all as per IS-3070 Part-III and IEC 1994 including dismantling of existing lightening arrestor complete all as specified and directed by the Engr-in-charge.

M&L for Mild steel duct cover of 5mm thick chequered with 10mm dia MS bar lifting handle of required sizes including taking down the old unserviceable MS duct cover etc complete all as specified and directed by the Engr-in-charge.

S&F in replacement of cable jointing kit and testing complete for 11 kv 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 complete all as specified and directed by the Engr-in-charge. Make: Cat No MHOx11KV E 3C of 3M /Cat No EPKT3352 of RYCHEM or equiralunt of Denson.

All as per item No 57 but indoor type complete all as specified and directed by the Engr-in-charge. Make: Cat No MHIx11KV E 3C of 3M/ cat No EPKT3101 of RYCHEM or equiralent of Denson

All as per item No 57 but straight through complete all as specified and directed by the Engr-in-charge. Make: Cat No MHSx11KV E 3C of 3M/ Cat No EPKT3260 of RYCHEM or equivalent of Denson

Supply, laying in trenches, duct and testing in replacement of XLPE insulated (earthed) cable in screened PVC bedded galvanized steel strip or wire armoured electric power cable (heavy duty) with stranded aluminium conductor, 11000 volts grade, cross sectional area 95 Sqmm 3 core conforming to IS- 7098 (Part-II) 1985 complete all as specified and directed by the Engr-in-charge. Make universal/cable corporation of India/Havell,s/ Polycab/Nicco

All as per item ser No 60 here-in-above but size 120 Sqmm 3 Core complete all as specified and directed by the Engr-in-charge.

M/s Prakash Enterprises

M/s Adhikari construction co.

MOHIT ENTERPRISES

M/S Satyam Associates

Surjit and Sons