REPAIR/REPLACEMENT TO HT OVERHEAD LINES, UG CABLES AND MAINT. OF E/M INSTALLATION AT DOMESTIC AND TECH AREA AT AF STN BHUJ

Amount

M & L for taking down carefully Transformer / Isolation transformer of capacity up to 750 KVA, any make, any type from pole / plinth/ base, disconnecting HT & LT side connections, earthing strip of transformer, supporting angles, cross arm, shifting / transporting transformer carefully from the site to the workshop opening the top cover of the transformer, draining of oil from the transformer, lifting the core complete taking out defective coils from the core, cleaning the tank and reassembling the transformer after carrying out the repairs ovening the complete unit till to get desired megger value, transporting returning back to the site installing re-commissioning and testing of the transformer at its original place, connecting up HT & LT sides, earthings, supports / cross arms etc all as directed by EIC. Note: (i) Spares, Rewinding of transformer,reinsulating & heating if required will be measured and paid separately under respective Sch'A' items (ii) T&P required, rent of vehicle, crane, labour involved for shifting, lifting are deemed to be included in the quoted rate.

S & F in repair top cover gasket made up of 5 mm thick cork sheet.

S&F in repair HT bushing, porcelain vitreous brown body suitable for 11 KV Indoor/outdoor suitable upto 750 KVA capacity Transformer as per IS 3347.

S&F in repair LT bushing, porcelain vitreous brown body 433 V grade Indoor/outdoor suitable upto 750 KVA capacity Transformer as per IS 3347.

S&F in repair HT brass studs,Nuts, Chucknuts along with washers complete with rubber parts for one terminal 11 KV Indoor/outdoor suitable upto 750 KVA capacity Transformer.

S&F in repair LT brass studs,.nuts,chuknuts along with washers for one terminal 433 Volts grade Indoor/outdoor suitable upto 750 KVA capacity transformers.

S&F in repair breather assembly complete with silica GEL as reqd at site.

S & F in repair Temp level indicator including its bolts, nuts, gasket etc complete.

Rewinding old / burnt out HT coils by super enameled copper winding wire / strips of appropriate size of super quality (as per existing material & size of transformer coils) including, insulating, tanking, ovening, keeping coils in position, etc for transformer up to 750 KVA.

Re-insulation of heated / weak LV coils of transformer by super quality insulating materials, ovening, tanking , etc complete to improve IR value etc complete all as directed by EIC.

M & L for Dehydration and filtration of transformer oil / Voltage stabilizer / VLE switch & Isolation Transformer oil by using mobile dehydration and filtration plant of capacity of 12000LPH,heating and filtering the transformer oil to be carried out per minimum four hours till the di- electric strength reaches value of 45 KV or above in one minute, for any capacity of transformer/Voltage stabilizer/VLE Switch & Isolation Transformer (25 to 500 KVA/ VLE SWITCHES) Note:- Cost of T&P required for dehydration and filteration should be deemed to be included in the quoted rate. No extra cost will be permissible to the contractor in this regard.

Supply and topping / replacement of transformer oil having di-electric strength above 50 KV/mm of Transformer chamber and conservator with new transformer oil up to the required level in any type and capacity of transformer / Voltage stabilizer / OCB all as directed by EIC. Note : Transformer oil brought by the contractor at site shall be in seal packing drum having ISI mark as per IS 335/1983 of make Savita, Asian or equivalent.

M&L for servicing of GOD assembly , cleaning the rusted surfaces of fixed and moving contacts, applying grease , replacing the wornout jumper clamps / jumpers upto 2mtr length, nuts/bolts etc, checking for proper alignment and smooth working of GOD all as directed. Note:- (i) The items for replacement of GOD,DO,HT joints etc will be measured and paid separately, if required)

S & F in repair 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 sizes 120 Sqmm 3 core all as specified and directed.

All as per item No.14 above but of size 95 Sqmm 3 core

Supply and fix in repair 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 sizes 120 Sqmm 3 core all as specified and directed.

All as per item No.16 above but of size 95 Sqmm 3 core

Supply and fix in repair 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 sizes 120 Sqmm 3 core all as specified and directed.

All as per item No.18 above but of size 95 Sqmm 3 core 95 Sqmm 3 core

S & F in repair of Potential Transformer 11 KV / 110 V 50Hz of VCB as required at site, all as directed by EIC.Make :CG/ ABB / L&T or equivalent

S & F in repair of Current Transformer of VCB upto 200/5 Amps all as directed by EIC.

M & L for Maintenance / Servicing of Servo Voltage stabilizer by OEM rep of capacity upto 750 KVA 3 phase 440 volts 50 Hz including cleaning, checking oil level and brazing / soldering if required , of servo Voltage Stabilizer including replacement of gear assembly (fiber/metallic) as reqd at site .checking each phase voltage, Testing and commissioning complete all as directed.( Note: Spare parts if required shall be paid separately)

S&F in repair of Electronic circuit card (PCB) in servo Voltage stabilizers upto 750 KVA capacity all as specified and as directed by EIC.

S &F in repair of Voltmeter(Digital) size as reqd at site all as specified and as directed by EIC.

S&F in repair of Amp meter with CT (Digital) size as reqd at site all as specified and as directed by EIC.

S&F in repair of Trigger Transformer all as specified and as directed by EIC.

S & F in repair of Microcontroller three phase (3ct sencing) APFC relay IPFC CS 1003, 8 steps incl LCD type with dual colour backlight aux supply 90-550 VAC configure alarm settings, supports intelligent algorithm, alarm indoication on display, programmable fan control, Dual password protection, automatic CT polarity detection, NTC temp sensor, Power factor measurment range:0.8 lag to 0.8 lead & Automatically switches between various capacitive bank complete all as specified and directed. Make Siemens / Schneider / L&T / Havells or equivalent.

S & F in repair of Capacitor duty Contactor with auxilliary contacts 1NO+1NC, 3 pole AC, upto 30 Amps capacity all as specified and directed. Make- Indoasian L&T / Havells or equivalent .

S & F in repair heavy duty capacitors for non linear load 440 Volts AC,3 phase, 50 Hz delta connection for APFC panel,Capacitor of size 3 Ph 2 KVAr Type oif insulatinon material is to be mica/epoxy/oil or as per site requirement. Make-Havell's of make L&T / Siemens.

All as per item No. 29 above but Capacitor of size 3 Ph 5 KVAr

All as per item No. 29 above but Capacitor of size 3 Ph 10 KVAr

All as per item No. 29 above but Capacitor of size 3 Ph 20 KVAr

M & L for Shifting of Transformer / Isolation Transformer / Voltage stabilizer upto 750 KVA capacity from one location to other location of any capacity including removing the existing HT/LT connection of any type transformer and transporting the same to desired location within Airforce stn bhuj area including 308 TRU (mundra road). The same installing connecting HT/LT cables, Earthing testing and commissioning all as directed EIC.

M & L for scrapping of old painted/oily surface of transformer including all nut bolts, channels by wire brush with cottan waste and painting with two coat of approved synthetic enamel paint as per the existing paint by sparay gun and writing SM No all as per ground condition as directed and specified by Engr-in –charge.

Taking out unserviceable / serviceable HT cables from excavated trenches, ducts, wall, pole etc including removing cable covers, sand, cable joints, pipes, clamps etc, taking out old serviceable cables for reuse and removing unserviceable cables, covers etc, for the sizes of cables 95 /120Sqmm all as directed by Engr- in -charge.

S & F in repair of serviceable HT 11 KV 3 core 95 sqmm of size cable in trenches/fixed to poles/wall, XLPE insulated, screened, PVC bedded, galvanised steel strip or wire armoured, electric power cables (HT), heavy duty with aluminium conductor, 11000 volts (earthed) grade all as specified and directed by EIC.(Note:- (i) Excavation, earthwork, cable joints, sand coushing & cable cover will be measured and paid separately if required)

Relaying only in replcement of HT 11 KV 3 core 95/120 Sqmm cable in trenches/fixed to poles/wall, XLPE insulated, screened, PVC bedded, galvanised steel strip or wire armoured, electric power cable (HT), heavy duty with aluminium conductor, 11000 volts (earthed) grade 95/120 Sqmm x 3 core all as specified and directed by EIC.

Excavation in trenches not exc. 1.5m wide and not exc. 1.5m in depth for foundation etc or for shafts, wells, cesspits, manholes pier holes etc not exc. 10sqm on plan and not exc 1.5m in depth and getting out in soft /loose soil complete all as specified and as directed by Engineer-in-Charge.

Returning filling in soil and including spreading leveling watering and well ramming in layers n.exc. 25 cm thick complete all as specified and as directed

Removing excavated soil to a distance n.exc. 50 mtr and depositing where directed at a level n.exc. 1.5m above the starting points complete all as specified and as directed

M & L for providing dry river sand as in cushioning to UG cables including gently punning down of sand in layers all as directed and specified. (Note: For measurement purpose punned thickness shall be considered)

M & L for unreinforced precast concrete cable covers CLASS HV type I, flat size 300 x 180 x 40 mm laid transverse to cable all as directed and specified.

S&F in repair of 100 mm bore GI tubing, light grade for encasing cables for mechanical protection, laid under plinth/floors/ roads/ path /culverts or fixed on walls/on poles by means of MS clamps with necessary bolts, nuts and washers complete all as specified and directed.

All as per item No.43 above but 80mm bore GI tubing

Boring of holes under road, pavement, hard standing by trenchless technology using ultra sounding technique and necessary machine including HDPE pipe of 150 mm dia suitable for 0.4 mpa working pressure.

M & L for erection of Precast HT cable route / cable path indicator,made out of PCC 1:2:4 ,type Bo,12.5 mm graded stone aggregates of size 100 Cm (Height) x 12 Cm (Width) x 8 Cm (Thichness), painted with orange colour lettering synthetic paint and letters 4 inch "DANGER,HT 11 KV CABLE" to be written with black colour lettering synthetic paint and embedded in PCC block 1:3:6 type C2 (using 40mm graded aggregate) of size 15cm x 15cm x 20cm including necessary excavation for PCC block c, placed at interval of every 30 M ,complete all as specified and as directed by Engr-in-Charge.

Supply, fabricate, test and commisioning in repair of factory made HT out door feeder pillar box Single door of size 1000x1000x600 mm including locking arrengment cubical type dust proof , weather proof , vermin proof asthetically designed, having atleast IP -54 degree of ingress protection , fabricated from 3 mm thick CRCA sheet with front & rear opening including bus bar chamber , continuous GI strip earth bus bar , 3 strips of copper bus bar of 400 Amps capacity, insulated color sleaves, procelain/epoxy insulators, rail channels cable alloy, danger notice board (11000 Volt) including made out of 14 guage MS sheet over angle iron frame of size 50x50x6mm , 60 cm grouted in ground floor and 60 cm above GL including necessary excavation ,foundation .PCC etc complete duly powder coated of approved color all as directed.

Supplying and laying synthetic Rubber insulated mats 2.5 mm thick for voltage upto 11 KV of size 2mx1m all as specified and as directed by Engr-in-Charge.

S & F in repair of procelain/epoxy insulators use in HT feeder pillar boxes as per sample all as specified and as directed.

S & F including Stretching binding of ACSR conductor on poles to the insulator by means of necessary binding wires 16 SWG aluminium wire complete with necessary jumpers and connections, complete all as specified and as directed.

S&F pin type Porcelain, vitrous, white, brown or green insulator including one galvanised amild steel spindle, two galvanised iron washers and one galvanised iron nut, 150 mm height, 150mm dia for 11000 volts grade

S&F Disc type, porcelain, vitreous, white, brown or green insulator including galvanised mild steel straps, washers, insulator bolts, washers and nuts as under Working pressure 11000 volts,145 mm height, 255 mm dia ball and socket type two in series assembly for tension with tension clamps for conductors all as specified and directed.

S&F danger boards notice plate of 1.6mm thick mild steel sheet, vitreous enamelled white, with letters, figures and conventional skull and bones in signal red colur and fixed with M.S clamps, bolts and nuts of approved size, for HT 25 X20 cm size.

M & L for making Platform for Transformer using Block masonary of size 2.5X2.5X1.5m in cement mortar 1:6m with PCC foundation 1:4:8 type D2 using 40 mm graded stone aggregate, PCC 1:2:4, type B-1 using 20 mm graded stone aggregate, 20 cm thick coping over brick work, plastering to exposed surfaces of brick work with cement mortar 1:4, 15mm thick including finishing of surface complete all as specified and directed by Engr-in-charge . Note : Size / strength of Platform to be maintained as per Transformer capacity, minimum height of the platform from ground 1.2m and 30 cm below ground level as foundation all as specified and as directed by EIC.

M&L for borewell earthing maint free with the help of mechanical boring machine of 150mm dia- 30 m depth, S&F 160mm dia(OD) UPVC pipe 6kg/Sqcm rating-30m long with the help of suitable size clamp with nut bolt and washers-01 No, S&F 30m 50mm dia GI pipe medium grade lowering in borewell with the help of T&P having suitable hole for providing good conductivity of earthing, M&L for providing 32X6mm GI strip upto 7.5 m long complete with protected with 40mm light grade GI tubing and connect with extng testing terminal block by screws and borewell earthing with the help of suitable size GI nut bolt and washersetc complete, M&L for charcoal dust, salt fill in borewell for earth conductivity. M&L for covering of borewell with PCC (1:2:4) type B-1/ brick masonary pit of size 45X45X45 cm complete all as specified and minimum earth result below 1 ohm to provide any chemical etc as required complete all as specified and directed by Engr-in- Charge

M&L for complete cleaning of the internal & external parts of HT panel; checking & testing of all the components of the panel for cable insulation, lugs, connections and the like; replacement of & including provision of minor parts like lugs, insulation tape, nuts bolts, connectors and the like as directed by Engineer-in-Charge; replacement and / or welding of existing damaged hinges of the panel; preparation of old painted surfaces (internal & external) of the panel, complete removal of existing paint using emry paper grade 220, by sanding and scrubbing, application of corrosion resistant primer by sprayers, applying hammer finish metal paint using sprayers in two coats and till shining surfaces are obtained; application of two coats of epoxy black paint on panel frames, with locking arrangement including lock complete all as directed by Engineer-in-Charge.

S&F in repair of prestressed concrete pole, 11 metres long 152 mm x 152mm x at top and 152mm x 260mm at bottom class 9, erected in true vertical position in PCC work for foundation & Coping complete all as specified. Note: Excavation/earth work, etc shall be measured and paid separately under respective items of Sch "A"

M & L for Cleaning the Sub Stations area by trimming tree branches, removing unwanted growth complete all as specified and as directed by Engr-in-Charge. Job shall include thorough cleaning of 40 Substations. Cleaning shall be done once in a Quarter for all 40 Substations. Rates of cleaning the Substation shall include the trimming of tree branches, removing unwanted vegetation and transporting the same to a distance not less tha 200m as directed by Engr-in- Charge. Note: Contractor's supervisor with sufficient labours and an electrician alongwith tools and plants will report to JE in the morning for taking over site of cleaning as and when directed by Engr-in-charge. The cleaning shall be done upto the satisfaction of Engr-in-charge.

M&L for Locating of fault in HT 11 KV cable of any size laid in trenches by hiring of electronic fault locating machine for finding out the fault of defective 11 KV HT cable at different locations including excavation of trenches for each fault at site making sufficient space for working inside the trenches for jointing the cable and further excavation and refilling after connection and testing of straight through joint as per requirement complete all as specified and directed. Note :- (i)The fault located equipment will be brought at site within 02 days of Instruction received from Engineer-in-charge complete all as specified and as directed by Engineer-in-charge. (ii) (i) Excavation, earthwork, cable joints, sand coushing & cable cover will be measured and paid separately if required)

Shifting of 630A RMU indoor type from Hill top ATC to Base Ops (distance within 1 Km) by disconnecting HT cables and Earthing strips and installing the same in Base Ops and connecting HT Cables, earthing strips without any damages complete all as specified and directed by Eng in Charge incl necessary PCC foundation for RMU. Note Transportation reqd for shifting of RMU deemed to include in quoted rates. Contractor will ensure the safety of RMU while shifting and will bare the cost for damages if occured.

Shifting of 630A RMU outdoor type from Base Ops to OWSA (distance within 1 Km) by disconnecting HT cables and Earthing strips and installing the same in OWSA in the place of HT panel and connecting HT Cables, earthing strips without any damages complete all as specified and directed by Eng in Charge incl necessary PCC foundation for RMU. Note Transportation reqd for shifting of RMU deemed to include in quoted rates. Contractor will ensure the safety of RMU while shifting and will bare the cost for damages if occured.

Pressure testing and arresting leakage by brazing/welding and charging with SF6 gas filling in 630A RMU, servicing of VCB mechanism and all components of RMU as reqd & Shifting the same RMU indoor type from DD Block to Hill top ATC (distance within 1 Km) by disconnecting HT cables and Earthing strips and installing the same in Hill top ATC sub Stn and connecting HT Cables, earthing strips without any damages complete all as specified and directed by Eng in Charge incl necessary PCC foundation for RMU. Note Transportation reqd for shifting of RMU deemed to include in quoted rates. Contractor will ensure the safety of RMU while shifting and will bare the cost for damages if occured.

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