REPAIR/ REPLACEMENT OF VCBs, RMU, TRANSFORMERS , SERVO STABILIZER AND GYSER AND SOLAR WATER HEATER AT AF STN NAJAFGARH UNDER GE (AF) TUGHLAKABAD

Dismantling of mechanism system of defective 11 KV VCBs / RMUs, 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 VCBs / RMUs complete all as specified and directed by Engr-in-charge. Make as per of existing VCB / RMU.

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

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

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 VCBs / RMUs, 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 VCBs / RMUs 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 VCBs / RMUs complete all as specified and directed by Engr-in-charge. Make as per of existing VCBs / RMUs

Taking out of old unserviceable/ defective/ old vintage/ obsolete model of relays from 11 KV VCBs / RMUs and S&F over current and earth fault electronic relay suitable for 11 KV, VCBs / RMUs including necessary addition/ alternation of VCBs / RMUs 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 VCBs / RMUs

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 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 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 VCBs / RMUs

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 VCBs / RMUs

Supply and installation 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

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.

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 24 Volt complete including reconnection and assemble the same after repair and testing complete all as specified and directed by Engr-in-Charge.

Opening the upper cover of voltage stabilizer motor operated of capacity 200 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.

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 HT/ 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 light grade 80 mm bore complete all as specified and directed by 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, laying in trenches, duct and testing XLPE insulated (earthed) cable in screened PVC bedded galvanized steel strip 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 /Gloster / Polycab

All as per item ser No 30 here-in-above but size 120 Sqmm 3 Core.

Supply, laying in trenches, duct and testing XLPE insulated (earthed) cable in screened PVC bedded galvanized steel strip armoured electric power cable (heavy duty) with stranded aluminium conductor, 1100 volts grade, cross sectional area 95 Sqmm 3.5 core conforming to IS- 7098 (Part-II) 1985 complete all as specified and directed by the Engr-in-charge. Make: Universal/ Gloster/ Polycab

All as per item ser No 32 here-in-above but size 70 Sqmm 3.5 Core.

S&F 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 : Rychem / Denson

Ditto- All as per item No 34 but indoor type. Make : Raychem RPG / Denson

Ditto- All as per item No 34 but straight through. Make : Raychem RPG / Denson

Supply and jointing in replacement of indoor/outdoor cable end terminal joints/straight through heat shrinkable type complete suitable for aluminium conductor cable of size 50 Sqmm 3½ Core to 95 Sqmm 3½ Core complete all as specified and as directed.

All as per item No 37 here – in – above but for cable of size 120 Sqmm 3½ Core to 185 Sqmm 3½ Core – ditto-

All as per item No 37 here – in – above but for cable of size 240 Sqmm 3½ Core to 300 Sqmm 3½ Core – ditto-

S&F of earth continuity conductor or main earthing lead fixed to wall on batten or recess or chases or buried in ground or drawn in conduit/pipe or fixed to poles or any other indicated situation for loop earthing etc. as required by using 25 x 4mm galvanised iron strip complete all as specified and directed by Engr-in-charge.

M&L for installation of maintenance free Chemical Earthing with copper bonded earth rod of 17.2 mm dia, 3 meter long with suitable copper plate of 250 micron welded with necessary connections clamps including 2 X 25 kg backfill chemical compound complete all as specifed directed by Engr-in-Charge. Note : The pit shall be constructed in PCC 1:2:4 type B1 using (using 20mm grade stone aggregate) RCC slab shall be provided in RCC 1:2:4 type B-1 (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 with good finishig as specified.

S&F copper strip of size 20 mm x 3 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 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, 25 x 20 cmcement mortar complete all as directed and specified by the Engr-in-Charge.

S&F 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 LT, 20 x 15 cm cement mortar complete all as directed and specified by the Engr-in-Charge.

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:-

(a) 250 Amps 4 Pole breaking capacity 36 kA. Make: Havells/ Legrand/ ABB

(b) 400 Amps 4 Pole breaking capacity 36 kA. Make: Havells/ Legrand/ ABB

(c) 630 Amps 4 Pole breaking capacity 50 kA. Make: Havells/ Legrand/ ABB

(d) ACB 4 Pole, 415 V, Manual Drawout type with microprocessor release of capacity 800 Amps. Make: Havells/ Legrand/ ABB

Taking down, dismantling / unscrewing electric water heater (Geyser) for repair / servicing and refixing after repair reconnecting of electrical and water supply and testing with water pressure complete as specified and as directed Note :spare parts of geyser measure and paid separately are as under.

S & F in repairs of complete for heating element 1500 watt, ISI marked of any type copper sheathed and nickel plated of suitable size.Make: Havells/ Dasspass/ Bajaj

S & F in repairs of complete for heating element 2000 watt, ISI marked of any type copper sheathed and nickel plated of suitable size.Make: Havells/ Dasspass/ Bajaj

S & F in repairs of complete for thermostat suitable for 25/50 Litre water heater(Geyser) of any make ranging from 0° C to 90° C.Make: Havells/ Dasspass/ Bajaj

S & F in repairs of in repair base plate assembly complete with rubber packing suitable for water heater (geyser) of any make/any model 25 litre capacity complete all as specified and as directed.

S & F in repairs of base plate assembly complete with rubber packing suitable for water heater (geyser) of any make/any model 35/50 litre capacity complete all as specified and as directed.

S & F in repairs of safety valve suitable for 25ltr/35ltr/50ltr geysers.

S & F in repairs of geyser inner tank (copper) of 25 litre capacity complete all as specified and as directed.Make: Dasspass/Bajaj

S & F in repairs of geyser inner tank (copper) of 35/50 litre capacity complete all as specified and as directed.Make: Havells/Dasspass/Bajaj

S & F in repairs of glass wool for geyser complete all as specified and as directed.

S & F in repairs of fusible plug having melting point 90°C /100°C (as per sample) complete all as specified and as directed. Make: Anchor/Havells

S & F in repairs of neon lamp indicator red / green rectangular / round type, complete all as specified and as directed. Make: Indian

S & F in repairs of plug top 3 pin 15 Amps ISI Marked as specified and as directed.

S & F in repairs of replacement for PVC connection 15mm size dia of 450mm long with check nuts on both end with rubber washer complete all as specified and as directed.

S & F in repairs of replacement for PVC connection 15mm size dia of 750mm long with check nuts on both end with rubber washer complete all as specified and as directed.

S & F in repairs of PVC insulated flexible cable 3 core with stranded copper conductor of size 2.5 Sqmm against unserviceable flexible cable complete all as specified and as directed.

Taking down carefully sub main wiring of size including batten and making good disturbed surface of wall.

M&L complete for sub main wiring with single core copper multi strand conductor FRLS insulated (unsheathed) cable of size 2x06 Sqmm and 1x06 Sqmm as in continuous earth wire drawn into & including PVC conduit medium 25mm dia ISI marked complete with fittings and fixings accessories laid concealed complete and including necessary cement work complete all as directed by the Engr in charge including cutting chases pinning in making good to facing and pointing in cement mortar 1:3 to the ends or cutting chases for concealed conduit sub main wiring and making good disturbed surface complete. Cutting not exc 4cm girth and 4cm width.

Taking down carefully aluminium/copper point wiring on batten or in PVC conduit or in MS conduit with GI earth wire etc (for light, fan, socket or power ) complete,including fixture and fitting such as switches,ceiling roses,pendents,regulators,sockets,light fitting etc.removing materials to store for keeping in safe custody or for taking credit (credit for above items should be made as per conditions seperately) and making good the disturbed surfaces of walls, Floors, ceilings etc.

M & L complete for wiring with cable of size 4.00 sqmm single core copper multistrand conductor including 4.00 Sqmm continuous earth wire in PVC pipe, using cable FRLS insulated(unsheathed) 1100 volts grade conforming to Is-694 drawn in to and including concealed pvc rigid conduit medium duty with all fittings and fixing accessories ISI certified IS 9537 part -3 and terminated in to pressed steel metal flush boxes, brackets etc and including necessary cement work complete all as directed by the Engr in charge.

S & F in repairs of complete for modular socket 2 in 1, 6 pin 6A/16 Amp- 2/3pin combined 2 module.

S & F in repairs of Complete for modular switch one way 16 amps 1 module.

S & F in replacement for single pole and neutral enclouser with a two pin and earth plug and socket complete with one single pole MCB of 20 Amp capacity with alignment 10 KA ‘C’ series including electric connection complete all as specified and as directed.

S & F in repairs of water heater, storage type steel body with SS inner tank and heating element upto 2 KW capacity 25 Litre,BEE 5 star rated complete with all accessories such as safety valve, thermostat, NRV, connection piece ect complete all as specified and as directed by Engr-in-charge. Note : The old unserviseable geysers should be deposited at AGE E/M yard

S & F in repairs of water heater, storage type steel body with SS inner tank and heating element upto 2 KW capacity 35 Litre,BEE 5 star rated complete with all accessories such as safety valve, thermostat, NRV, connection piece ect complete all as specified and as directed by Engr-in-charge. Note : The old unserviseable geysers should be deposited at AGE E/M yard

Taking down Geyser capacity 25/50 ltrs from its existing position duly disconnected inlet/outlet water connection and painting of geysers with 1st grade synthetic enamelled paint (DUCO) by spraying after preparation of old steel surface including refixing the geysers after successful painting to its existing position including making connection of inlet/outlet water connection and testing complete all as specified and directed by Engr-in-Charge.

S&F in replacement complete for stop valves fancy type chromium plated cast copper alloy, screwed down high pressure with crutch or butter fly handle external threaded screwed both ends for iron pipes of 20 mm dia complete all as specified as directed.

S&F in replacement complete for stop valves fancy type chromium plated cast copper alloy, screwed down high pressure with crutch or butter fly handle external threaded screwed both ends for iron pipes of 15 mm dia complete all as specified as directed.

S&F in replacement complete for bib taps cast copper alloy screwed down high pressure with crutch or butterfly handle external threaded screwed for iron pipes 20 mm dia complete all as specified and directed.

S&F in replacement complete for bib taps cast copper alloy screwed down high pressure with crutch or butterfly handle external threaded screwed for iron pipes 15 mm dia complete all as specified and directed.

S & F in repairs of 15 mm bore GI tubing, medium grade fixed on walls/floor/ceiling with and including necessary GI fittings such as sockets, bends, elbows, tees, short pieces etc including taking down existing GI tubing with making good disturbed surface complete all as specified and directed.

S & F in repairs of 20 mm bore GI tubing, medium grade fixed on walls/floor/ceiling with and including necessary GI fittings such as sockets, bends, elbows, tees, short pieces etc including taking down existing GI tubing with making good disturbed surface complete all as specified and directed.

S & F in repairs of 25 mm bore GI tubing, medium grade fixed on walls/floor/ceiling with and including necessary GI fittings such as sockets, bends, elbows, tees, short pieces etc including taking down existing GI tubing with making good disturbed surface complete all as specified and directed.

S&F in replacement of Gun metal gate valve 20 mm bore with all GI fitting as per existing all as specified and directed.

S & F in replacement of Gun metal gate valve 25 mm bore with all GI fitting as per existing all as specified and directed.

Taking down of unserviceable PVC tank of any capacity and disconnecting of all GI pipe complete all as specified and directed by Engr-in-Charge.

M & L for rotational moulded polyethylene water storage tanks Capacity 1000 Ltr (Cylindrical vertical with closed top) hoisted and fixed in position including connection complete all as specified and directed. Make - Jindal/Unitex/ Sintex

M&L in replacement of MS angle of size 45 X 45 X 5 mm for stand of solar hot water storage tank and solar collector complete all as specified and directed by Engr-in-charge.

M & L for PCC (1:2:4) type B1 using 20 mm graded stone aggregate in foundation, mass concrete fixing for solar water tank /panel complete all as specified and directed.

S&F in replacement complete for flat plate solar collectors toughened glass 3 mm thick of size 1992x1090 mm, including all fixing accessories complete all as specified and directed by Engr-in-charge. Make: Arinna/TATA

S&F in replacement complete for flat plate solar collectors frame box, including all fixing accessories complete all as specified and as directed by Egnr-in-charge. Make: Arinna/TATA

S&F in replacement complete for flat plate solar collectors copper absorber including all fixing accessories complete all as specified and as directed by Egnr-in-charge. Make: Arinna/TATA

Disconnecting the unserviceable heat collector panels any capacity any types from solar tank carefully, complete all as specified and directed by Engr-in-Charge.

S&F in repairs of complete for flat plate solar collectors of size 1992x1090x100 mm complete puff insulated collector accessories complete all as specified and as directed by Engr-in-charge. Make: Arinna/ TATA

Taking down of unserviceable worn out solar tank disconnecting all connection of GI pipe complete all as specified and directed by Engr-in-Charge.

S & F in replacement complete for 200 LPD solar hot water storage tank SS 304 L grade vertical/horizontal with insulation of 50 mm puff insulated tank with pre powder coated GI sheet complete all as specified and directed. Make: Arinna/TATA

M & L complete for hot water pipe duly insulated with glass wool and aluminium cladding 15mm bore GI pipe complete all as specified and directed by Engr-in-Charge.

M & L complete for hot water pipe duly insulated with glass wool and aluminium cladding 20mm bore GI pipe complete all as specified and directed by Engr-in-Charge.

M & L complete for hot water pipe duly insulated with glass wool and aluminium cladding 25mm bore GI pipe complete all as specified and directed by Engr-in-Charge.

M & L in replacement complete for fire alarm control panel complying with BS EN 54, two loop panel of capacity from with 99 detectors and 99 modules(per each loop) complete all as specified and directed by Engr-in-Charge.

M & L in replacement complete for detectors complying with and type certified to EN 45 addressable type multisensor detector with heat and smoke combination complete all as specified and directed by Engr-in-Charge.

M & L in replacement complete for beam master detector with transmitter and receiver (add power supply unit & module) complete all as specified and directed by Engr-in-Charge.

M & L in replacement complete for addressable control module complete all as specified and directed by Engr-in-Charge.

M & L in replacement complete for addressable monitor module complete all as specified and directed by Engr-in-Charge.

M & L in replacement complete for Fire alarm sounders / sirens electronic type horizontal two stage continous normal operation for atleast 50 minutes with sound level 65 db to 120 db measured at 1.5 m with sound output variation of + 5db 500m range complete all specified and directed.

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