REPAIR/ REPLACEMENT TO LT PANELS, MCCB, BUS DUCTS AND OTHER ALLIED E/M WORKS AT AF STN TEZPUR

Disconnecting of incoming, outgoing cables and earthing lead and taking down carefully existing unserviceable LT Feeder Pillar-Box/Panel/Busbar Enclosure with all accessories, including removing unserviceable cubicle with accessories from site, complete all as directed.

Taking out existing, PVC/XLPE insulated, PVC sheathed, armoured U/G cables, 1100 Volts grade from trenches/ducts/ poles etc of size 185/150/120 Sq mm, 3 ½ core, complete all as directed.

Taking out existing, PVC/XLPE insulated, PVC sheathed, armoured U/G cables, 1100 Volts grade from trenches/ducts/ poles etc of size 95/70/50 Sq mm, 3 ½ core, complete all as directed.

Taking out existing, PVC/XLPE insulated, PVC sheathed, armoured U/G cables, 1100 Volts grade from trenches/ducts/ poles etc of size 35/25/16/10 Sq mm, 2 core/ 3 ½ core/4 Core, complete all as directed.

Excavating in Trenches not exc. 1.50 mtr wide and not exc. 1.50 mtr in depth, Taking Out and Laying of Cables, etc. and getting out in Soft/ Loose Soil, complete all as specified and as directed.

Returning, Filling in, including Spreading, Levelling, Watering and Well Ramming in Layers not exc. 250mm in Soft/Loose Soil, complete all as specified and as directed.

Removing excavated Materials (Soils) not exc. 50.00 mtr and depositing where directed at a level not exc. 1.50 mtr above the Starting Point in Soil, complete all as specified and as directed.

Horizontal Boring for passing GI protection pipe up to 100 mm bore (dia), under road / foot path, not exc. 10.00 metre in a single length, complete all as specified and as directed.

M&L Sand Cushioning (dry) in Trenches for protection of UG Cables (below, above and around the UG Cable laid in Trenches) of 230mm Spread thick -ness and consolidated (punned) upto 180mm thickness, complete all as specified and as directed. (NOTE : For the purpose of Payment, Punned thick-ness of Sand Cushioning only shall be Measured and Paid for).

M & L brick protection with old size sub class ‘B’ brick for PVC under ground cable protection in trench with width equal to length of brick laid dry and flat joining each other with gap between adjacent brick not exceeding 10mm over LT under ground cable all as specified and directed.

Re-laying only old Brick in Trenches for Under Ground Cable Protection (Serviceable Materials obtained from Item No. 1 here-in-before), complete all as directed.

M&L for cutting the road/hard standing and making good disturbed surface by using PCC type C2 (1:3:6) by using 20 graded stone aggregate for the fixing the pipe complete all as directed by the Engr-in-Charge at site.

Taking down/out unserviceable GI / HDPE/Polyethylene flexible pipes of any descriptions, laid in trenches and/or fixing with Walls/Poles complete all as specified and as directed.

S&F Galvanised Iron Pipe 50mm Bore (dia) ‘Light Grade’ for protection of UG Cable, laid in Floors/ Road Crossing, fixing to Pole with Mild Steel Clamps, Nuts, Bolts, etc., complete all as specified and as directed.

S&F Galvanised Iron Pipe 80mm Bore (dia) ‘Light Grade’ for protection of UG Cable, laid in Floors/ Road Crossing, fixing to Pole with Mild Steel Clamps, Nuts, Bolts, etc., complete all as specified and as directed.

M&L for tubes 100 mm bore light grade galvanized with all fittings laid in trenches/ wall/ pole through MS flat (25X3 mm), nut, bolt & washers [ where ever reqd ] of proper sizes for protection cables complete all as specified and directed. Make- Nezone/ Bansal/ Jindal

Supply,laying, jointing and testing of LT, XLPE insulated, PVC sheathed, armoured, heavy duty electric cables with aluminium conductor for working voltage up to and including 1100 volts, of Cross sectional area 185 Sq. mm, 3 ½ core, complete all as specified and directed.

Supply,laying, jointing and testing of LT, XLPE insulated, PVC sheathed, armoured, heavy duty electric cables with aluminium conductor for working voltage up to and including 1100 volts, of Cross sectional area 150 Sq. mm, 3 ½ core, complete all as specified and directed.

Supply,laying, jointing and testing of LT, XLPE insulated, PVC sheathed, armoured, heavy duty electric cables with aluminium conductor for working voltage up to and including 1100 volts, of Cross sectional area 120 Sq. mm, 3 ½ core, complete all as specified and directed.

Supply,laying, jointing and testing of LT, XLPE insulated, PVC sheathed, armoured, heavy duty electric cables with aluminium conductor for working voltage up to and including 1100 volts, of Cross sectional area 95 Sq. mm, 3 ½ core, complete all as specified and directed.

Supply,laying, jointing and testing of LT, XLPE insulated, PVC sheathed, armoured, heavy duty electric cables with aluminium conductor for working voltage up to and including 1100 volts, of Cross sectional area 70 Sq. mm, 3 ½ core, complete all as specified and directed.

Supply,laying, jointing and testing of LT, XLPE insulated, PVC sheathed, armoured, heavy duty electric cables with aluminium conductor for working voltage up to and including 1100 volts, of Cross sectional area 50 Sq. mm, 3 ½ core, complete all as specified and directed.

Supply,laying, jointing and testing of LT, XLPE insulated, PVC sheathed, armoured, heavy duty electric cables with aluminium conductor for working voltage up to and including 1100 volts, of Cross sectional area 35 Sq. mm, 3 ½ core, complete all as specified and directed.

Supply,laying, jointing and testing of LT, XLPE insulated, PVC sheathed, armoured, heavy duty electric cables with aluminium conductor for working voltage up to and including 1100 volts, of Cross sectional area 10 Sq. mm, 4 core, complete all as specified and directed.

Supply,laying, jointing and testing of LT, XLPE insulated, PVC sheathed, armoured, heavy duty electric cables with aluminium conductor for working voltage up to and including 1100 volts, of Cross sectional area 10 Sq. mm, 2 core, complete all as specified and directed.

Supply installation, testing and commissioning of LT Feeder Pillar Box, AC 415 V, 50 Hz, 3 Phase, 4 Wire, of over all size 1500 mm (W) x 1500 mm (H) x 500 mm (D), suitable for accommodating the following accessories, totally enclosed self supporting structure/ cubicle, fully compartmentalized type,weather proof, protection IP-52, suitable for indoor use, with bottom cable entry with suitable cable glands ; accessories prewired with suitable size FRLSH PVC insulated multistranded copper conductor; structure made out of 2.00 mm thick CRCA steel sheets with angle iron frame work and legs of ISA-50 x 50 X 6 mm, with four legs (Height 450 mm minimuml) grouted to PCC (1:2:4) Type B1 foundation block; with suitable mounting arrangement for bus bars and accessories, with sloping canopy at top, double hinged doors at front with suitable locking arrangement and bolted rear opening shutters, with suitable locking arrangement; Provision of louvers at sides, structure treated under 8-Tank metal treatment process and duly powder coated, with danger notice plate of 1.6mm thick mild steel sheet, vitereous enamelled (white), with letters, figures and conventional skull and bones in signal red colour, fixing lugs, bolts, screws etc complete and comprising of the following accessories including necessary excavation work for taking out cable loop and refilling the trenches complete all as specified and dire

BUS BAR CHAMBER

(a) Bus bar high conductivity TP&N solid anodized Aluminium bus bars, rated 500 amps supported at required intervals sleeved with heat shrinkable PVC sleevings. The bars shall be colour coded at required intervals for identification - SET OF 4, 1 No.

INCOMER

(a) MCCB 400-500 Amps, 415 volts, Adjustable Thermal Magnetic Trip Unit, Ics = 100%Icu, 4 pole 36 KA - 01 No (In coming)

OUTGOING FEEDERS

(a) MCCB 250 Amps, 415 volts, Adjustable Thermal Magnetic Trip Unit, Ics = 100%Icu, 4 pole 25 KA - 01 No (Out going).

(b) MCCB 160 Amps, 415 volts, Adjustable Thermal Magnetic Trip Unit, Ics = 100%Icu, 4 pole, 25 KA - 04 No (Out going).

(b) MCCB 63 Amps, 415 volts, Adjustable Thermal Magnetic Trip Unit, Ics = 100%Icu, 4 pole, 25 KA - 02 No (Out going).

INDICATING DEVICES

(a) LED Indicating lamps for Main Supply indicating R', Y' B' - Set of 3.

(c) Current Transformer having Ratio 200/5, 5 VA rated burden - 3 Nos

(d) Digital Ammeter 0 to 400 Amps, square type (96mmx96mm) - 01 No.

(g) Control MCB - 3 Nos

M&L for repair/servicing of outdoor LT panel board of any size/type, cleaning with compressed air, tightening of all electric connections to bus bar & switchgears, replacement of wornout lugs, nut, bolts, proper connection to main earth lead, glands to be provided/replaced as required at cable entries, fixing of front & back side broken door hinges locking arrangement, repair to PCC foundation as required at site and spray painting with powder coated paint with weather protection supper enameled paint of existing colour in outer/inner side of panel after cleaning and preparing surface complete all as specified and as directed. (Note- Any other unsv spares if required for replacement, same will be measured from relevant item of Schedule)

Multifunction Meter, digital type, for LT panel three phase, size 96mm x 96mm, accuracy class 1.0 for monitoring of various electric parameters such as voltage, current, wattage, frequency, power factor etc.

M&L for cement concrete in foundations, filling and mass concreteType C2 1:3:6, 40mm graded aggregate all as specified and directed.

M&L for PCC as in foundation or any other works type C1 (1:3:6) (20mm graded aggregate) all as specified and directed. Note:- Any form work required for PCC works are deemed to be included in this rate.

M&L rendering 10mm thick in CM 1:6 on fair faces of brick works or concrete surfaces all as specified and directed.

M&L for relaying heavy duty LT under ground cable of any sizes and types in pipe /trench /cable duct /fixed on wall by proper size shaped GI clamps with nut bolts etc and making good the disturbed surfaces by cement mortar/paint to match with the existing surface complete all as specified & directed.

M&L for LT Cable fault detection and its rectification by using Cable fault locator machine or any other method of span length maximum 2km of cable size 95 to 400 sqmm all as specified and and directed by Engr-in-Charge. Note:-1. Suitable excavation and jointing kit will be measured and paid seperately.

M&L for replacement of cable duct cover or any other works made up of chequered plate with lifting handle (whereever reqd) including fabrication works such as cutting, welding & bent to shape and painting with two coats of black japan paint over a coat of red oxide primer on steel surfaces of any description over 10cm in width or girth including preparation of new untreated surfaces complete all as specified and directed.

M&L angle iron / flat bar of required sizes with locking arrangements including fabrication works such as such as cutting, welding & bent to shape and painting with two coats of black japan paint over a coat of red oxide primer on steel surfaces of any description over 10cm in width or girth including preparation of new untreated surfaces complete all as specified and directed.

M&L for fixing the aluminium terminal in cable end (through corrosion inhibiting compound) of cable size 400 sqmm all as specified & directed. Note: Corrosion inhibiting compound which will be used during crimping of terminal shall be measured and paid separately.

All as per above item no-36 but for cable size 300 sqmm all as specified and directed.

All as per above item no-36 but for cable size 240 sqmm all as specified and directed.

All as per above item no-36 but for cable size 185 sqmm all as specified and directed.

All as per above item no-36 but for cable size 150 sqmm all as specified and directed.

All as per above item no-36 but for cable size 120 sqmm all as specified and directed.

All as per above item no-36 but for cable size 95 sqmm all as specified and directed.

All as per above item no-36 but for cable size 70 sqmm all as specified and directed.

All as per above item no-36 but for cable size 50 sqmm all as specified and directed.

All as per above item no-36 but for cable size 35 sqmm all as specified and directed.

All as per above item no-36 but for cable size 25 sqmm all as specified and directed.

All as per above item no-36 but for cable size 16 sqmm all as specified and directed.

All as per above item no-36 but for cable size 10 sqmm all as specified and directed.

Supply only multipurpose lubricating & rust remover aerosol in 420 ml container. Make- Pidilite (Type- WD- 40)

Supply only high tension pressure sensitive self bonding electrical cable repair tape ( 36mm width, 900cm long) for XLPE insulated cable. Make- Jonson/ Eqvt

Supply only maintenance type microfibre cloth, 340 GSM (set of 25 Pcs) of approx size (40 cmX40 cm) Make-3M/ Softspun/ Gala/ Eqvt.

M&L for triming the tree branches falling / touching the HT/LT overhead line in various area of AF Station Tezpur with skilled labours and cutting tools and disposed the branches to a distance not exceeding 50 mtr length complete all as specified and directed.

M&L for replacement of damage/ corroded hinges with new hinges throgh necessary gas / arc welding works complete on the outdoor feeder pillar box/ LT panel/ or any other works complete all as specified and directed.

M &L for replacement of corroded sheet metal doors of outdoor/ inddor feeder pillar box or LT panel with new CRCA sheet of 2 or 3.15mm thick incl painting the same with two coat of enamel paint of existing shade over a coat of red oxide primer complete incl treatment of new surfaces complete all as specified and directed.

M&L for writing letter, figures, index arrows etc not exc 30 cm in height on LT Panel or any other specified location complete all as specified and directed.

Preparation of the old decorated existing external and internal steel surface of feeder pillar boxes/LT panels of any description, any size and in any position by thoroughly cleaning of dirt, fluxing material, other foreign matter and sand papering the surface to remove all scale and rust,wiped finally with mineral turpentine to remove oil, grease and including removal of disintegrated & deteriorated paint either by hand scrapping or by blow lamps, applying necessary filler coat and stopponf required and applying two coats of synthetic enameled paint over a coat of red oxide primer by using spray machine on old prepared surface and writing MES serial No with approved colour code complete all as specified and dircted by engr in charg.Note (i) Painting to be done after carrying out all the welding work for replacement of hinges, door lock etc. Note (i) Painting to be done after carrying out all the welding work for replacement of hinges, door lock etc.

M&L for cable jointing kit for 1.1KV grade for outdoor straight through heat shrink type joint complete with jointing material and accessories suitable for 3.5 core PVC/ XLPE armoured aluminium conductor cable of size 50-120 sqmm complete all as specified and directed.

All as per above item no-57 but size 150-240 sqmm all as specified and directed.

All as per above item no-57 but size 300-400 sqmm all as specified and directed.

Servicing/repair of 415V/690V/1000V Sandwich construction Busbar trunking system with Multilayer Class-F insulation and; Conductors : Aluminium Rating : 800A/1000A Configuration : 3P4W IP Rating : IP54 Enclosure : GI 1.6mm thickness Impulse Withstand Voltage : 8kV Paint Shade : RAL7032 Epoxy Powder Coating. Note :- Spares for replacement will be measured and paid seperately under respective items.

Supply only straight run feeder IP54 for Sandwich construction Busbar trunking system with Multilayer Class-F insulation and; Conductors : Aluminium Rating : 800A/1000A.

Supply only Flang end for Sandwich construction Busbar trunking system with Multilayer Class-F insulation and; Conductors : Aluminium Rating : 800A/1000A.

Supply only horizontal bend for Sandwich construction Busbar trunking system with Multilayer Class-F insulation and; Conductors : Aluminium Rating : 800A/1000A.

Supply only horizontal fixing clip (2 Nos per horizontal channel support) for Sandwich construction Busbar trunking system with Multilayer Class-F insulation and; Conductors : Aluminium Rating : 800A/1000A.

Supply only Adopter box with hardware for Sandwich construction Busbar trunking system with Multilayer Class-F insulation and; Conductors : Aluminium Rating : 800A/1000A.

Supply only Extension / Sorting link for Sandwich construction Busbar trunking system with Multilayer Class-F insulation and; Conductors : Aluminium Rating : 800A/1000A.

Supply only copper flexible with hardware for Sandwich construction Busbar trunking system with Multilayer Class-F insulation and; Conductors : Aluminium Rating : 800A/1000A.

Supply only bus support for Sandwich construction Busbar trunking system with Multilayer Class-F insulation and; Conductors : Aluminium Rating : 800A/1000A.

Supply fix in repair for MCCB confirming to IEC 60947-2, AC 415 Volt, four pole 500-630 Amp 50 KA with adjustable overload setting: 0.8 -1.0 x in and adjustable short circuit setting: 6-10 x ln, complete all as specified and directed.

Supply fix in repair for MCCB confirming to IEC 60947-2, AC 415 Volt, four pole 200 -250 Amp 36 KA with adjustable overload setting: 0.8 -1.0 x in and adjustable short circuit setting: 6-10 x ln, complete all as specified and directed.

Supply fix in repair for MCCB confirming to IEC 60947-2, AC 415 Volt, four pole 125-160 Amp 25 KA with adjustable overload setting: 0.8 -1.0 x in and adjustable short circuit setting: 6-10 x ln, complete all as specified and directed.

Supply fix in repair for MCCB confirming to IEC 60947-2, AC 415 Volt, four pole 63-100 Amp 25 KA with adjustable overload setting: 0.8 -1.0 x in and adjustable short circuit setting: 6-10 x ln, complete all as specified and directed.

S&F moulded case circuit breaker 250 - 320 Amps 415 Volts (with thermal magnetic release), 4 pole 36 KA breaking capacity, Ics=100% Icu, adjustable overload settings 0.8 - 1.0 x In, adjustable short circuit settings 6 - 10 x In after disconnecting all electrical connection incl. taking down old unsv one complete all as specified and directed.

S&F moulded case circuit breaker 100 - 250 Amps 415 Volts (with Microprocessor release), 3 pole 36 KA breaking capacity, Ics=100% Icu, adjustable overload settings 0.4 - 1.0 x In, adjustable short circuit settings 1.5 - 8 x In inbuilt instantaneous protection with front LED indicator after disconnecting all electrical connection incl. taking down old unsv one complete all as specified and directed.

S&F moulded case circuit breaker 250 - 630 Amps 415 Volts (with Microprocessor release), 3 pole 36 KA breaking capacity, Ics=100% Icu, adjustable overload settings 0.4 - 1.0 x In, adjustable short circuit settings 1.5 - 8 x In inbuilt instantaneous protection with front LED indicator after disconnecting all electrical connection incl. taking down old unsv one complete all as specified and directed.

S&F moulded case circuit breaker 100 - 250 Amps 415 Volts (with Microprocessor release), 4 pole 36 KA breaking capacity, Ics=100% Icu, adjustable overload settings 0.4 - 1.0 x In, adjustable short circuit settings 1.5 - 8 x In inbuilt instantaneous protection with front LED indicator after disconnecting all electrical connection incl. taking down old unsv one complete all as specified and directed.

S&F moulded case circuit breaker 250 - 630 Amps 415 Volts (with Microprocessor release), 4 pole 36 KA breaking capacity, Ics=100% Icu, adjustable overload settings 0.4 - 1.0 x In, adjustable short circuit settings 1.5 - 8 x In inbuilt instantaneous protection with front LED indicator after disconnecting all electrical connection incl. taking down old unsv one complete all as specified and directed.

Supply fix in repair for enclosed Automatic transfer switch confirming to IEC 60947-6-1, AC 415 Volt, four pole 250 Amp, frame 3 size, adjustable time delay (0.1 Sec to 3 hrs) complete all as specified and directed.

Transportation /shifting and installation of transformers,400 KVA, 11 KV /433 Volt supply system,taking down carefully from platform from AGE E/M Store and shifting to sub station as required directed by Engr-in-charge including Cleaning of Core and Winding by means of Washing by Hosing Down with Clean Dry Oil to removed Dust/Sludge on Core and Coil, Cleaning of Oil Tank to removed Sludge deposited, and kept it neat and tidy for future installtion purpose,complete all as specified and directed.

Transportation /shifting and installation of transformers,250 KVA, 11 KV /433 Volt supply system,taking down carefully from platform from and AGE E/M Store including Cleaning of Core and Winding by means of Washing by Hosing Down with Clean Dry Oil to removed Dust/Sludge on Core and Coil, Cleaning of Oil Tank to removed Sludge deposited, and kept it neat and tidy for future installtion purpose,complete all as specified and directed.

M&L for Earthing complete with copper earth plate electrode of size 600 x 600 x 3.15mm thick buried directly in ground with earth pit not less than 2.25 meter deep below ground level with top edge of plate not less than 1.5 meter below normal ground level connected to copper strip of size 20 x 3mm earth lead by means brazing after fixing of nuts, bolts, check nuts, washers of galvanised iron steel, protected by galvanized iron pipe 40mm bore (Medium grade) all as directed including cement concrete (1:3:6) type C-1 earth pit with precast RCC (1:1.5:3) type A-1 cover slab of size 42 x 42 x 10cm thick reinforced with 8mm dia TMT bars @ 15 cm c/c both ways with 10mm dia mild steel round bar of 30 cm long, bent to shape as lifting handle, funnel, wire mesh, 20 mm bore galvanized iron pipe (medium grade) for watering, earth testing point, charcoal or coke and salt in alternate layers with necessary earth work in soft/loose soil complete all as shown in electrical plate No 3 of SSR Part I including testing on completion after taking down old earthing complete all complete as specified and directed.

M&L for Earthing complete with GI earth plate electrode of size 600x600x6 mm thick buried directly in ground with earth pit not less than 2.25 meter deep below ground level with top edge of plate not less than 1.5 meter below normal ground level connected to GI earth strip of size 32 x 6 mm earth lead by means of nuts, bolts, check nuts, washers of galvanised iron as steel, protected by galvanized iron pipe 40mm bore (Medium grade) all as directed including cement concrete (1:3:6) type C-1 earth pit with precast RCC (1:1.5:3) type A-1 cover slab of size 42 x 42 x10cm thick reinforced with 8mm dia TMT bars @ 15 cm c/c both ways with 10mm dia mild steel round bar of 30 cm long, bent to shape as lifting handle, funnel, wire mesh, 20 mm bore galvanized iron pipe (medium grade) for watering, charcoal or coke and salt in alternate layers with necessary earth work in soft/loose soil complete all as shown in electrical plate No 3 of SSR Part I including testing on completion all complete as specified and directed after taking down old earthing.( GI strip upto 7.5m including testing consider in this item).