At DBRG-Electrical Works for Construction of new sick line at DBRG Coaching Depot.

A-Electrical Works for Construction of New Sick Line at DBRG Coaching

Supply, installation, testing and commissioning of 3150 KVA, 3-phase, 50 Hz, outdoor type, oil immersed power transformer of ratio 33/11 kV, copper wound, BIS Energy Efficiency Level- I, vector group Dyn11, connection HV/LV: Delta/Star, with transposition of winding conductors to minimize circulating current and losses, current density not exceeding 2.4 A/sq.mm under all 001 operating conditions, with impedance (Z%) as per IS 2026 and system requirement, with 5 Nos. off- circuit tap positions (±2.5%, ±5%), complete with first filling of transformer oil as per IS 335, welded leak-proof tank with radiators, conservator tank, Buchholz relay, OTI & WTI with marshalling box, arcing horns, silica gel breather, air release plug, drain cum sampling valve, pressure relief device, HV & LV porcelain bushings, name & diagram plate, lifting lugs, earthing terminals (2 Nos.), jacking pads and all standard accessories, conforming to IS 2026 (latest) and all relevant IS standards, as per approved technical data sheet, erected, tested and commissioned complete in all respects as directed by the Engineer-in-Charge.

Supply, installation, testing and commissioning of 250 KVA, 3-phase, 50 Hz, outdoor type, oil immersed power transformer of ratio 11/.415 kV, copper wound, BIS Energy Efficiency Level-I, vector group Dyn11, connection HV/LV: Delta/Star, with transposition of winding conductors to minimize circulating current and losses, current density not exceeding 2.4 A/sq.mm under all 002 operating conditions, with impedance (Z%) as per IS 2026 and system requirement, with 5 Nos. off- circuit tap positions (±2.5%, ±5%), complete with first filling of transformer oil as per IS 335, welded leak-proof tank with radiators, conservator tank, arcing horns, silica gel breather, air release plug, drain cum sampling valve, pressure relief device, HV & LV porcelain bushings, name & diagram plate, lifting lugs, earthing terminals (2 Nos.), jacking pads and all standard accessories, conforming to IS 2026 (latest) and all relevant IS standards, as per approved technical data sheet, erected, tested and commissioned complete in all respects as directed by the Engineer-in-Charge.

Supply, excavation, erection, testing and commissioning of 12-metre long GI tubular 003 pole of type SP-58, having minimum base diameter 165.1 mm, middle diameter 139.7 mm and top diameter 114.3 mm, with minimum thickness of 4.50 mm at base and middle and 3.65 mm at top, and approximate weight of 186 kg. The work includes supply of all foundation materials and erection of the pole in cement concrete foundation of mix 1:3:6 (1 cement : 3 coarse sand : 6 graded stone aggregate of 40 mm nominal size), including excavation of pit, centering and shuttering, proper alignment, concreting, curing, refilling and disposal of surplus earth, complete in all respects as per site conditions and directions of the Supervisor-in-Charge.

Boring of 3 mtr. underneth Road/Railway track with HDD Machine and laying of 250 mm dia HDPE pipe PN 8 for passing underground cable as per Direction of Engineer Incharge at Site.Supply of the HDPE pipe is included in the scope of this work

Supply, fitting and fixing of GI angle of size 50 x 50 x 5 mm of following length, 007 including cutting, drilling of holes, and supply and fixing of all necessary clamps, brackets, nuts, bolts, washers and accessories. The item is complete in all respects for proper mounting on pole/structure as per approved drawings, site conditions and directions of the Engineer-in-Charge.

Supply, drawing, strengthening and stringing of ACSR conductor 6/1/3.35 mm (Rabbit) on HT overhead lines, including laying of conductor on ground, lifting and placing on 008 poles,tensioning with approved tension clamps, binding on insulators, and providing jumpers asrequired. The work also includes supply and fixing of all associated fittings and accessories such as tension clamps, nuts, bolts and hardware, ensuring standard sagging in each and every span. The work shall be carried out complete in all respects as per relevant specifications, safety norms and directions of the Supervisor-in-Charge.

Supply and binding of 11 kV polymeric disc insulator of 70 kN rating, including supply and fixing of complete hardware fittings such as ball and socket arrangement, clevis, arcing horn 009 (where required), shackles, pins, nuts, bolts and washers. The insulator shall be made of high-quality polymer with FRP core and silicone rubber housing, suitable for outdoor overhead line application. The work includes proper binding of conductor, ensuring correct alignment and electrical clearances, complete in all respects as per relevant IS/IEC standards, approved drawings and directions of the Engineer-in-Charge.

Supply, fitting and fixing of 11 kV polymeric type pin insulator 5KN , including supply and fixing of galvanized pin, nuts, bolts, washers and all necessary hardware fittings. The insulator 010 shall be of high-quality polymer with FRP core and silicone rubber housing, suitable for outdoor overhead line application. The work includes proper mounting, alignment and binding of conductor, complete in all respects as per relevant IS/IEC standards, approved drawings and directions of the Engineer-in-Charge.

Supply, installation, testing and commissioning of 11 kV, 3-phase GO-DO fuse unit of 400 Amps capacity, including dismantling/removal of existing GO-DO fuse wherever required and replacement with new unit. The work includes supply and fixing of MS channel cross-arm of size 100 011 x 50 x 6 mm, operating handle/operating pipe, insulators, fuse carriers, contacts, and provision of one complete set of spare bare fuse elements. The item is complete with all necessary hardware fittings, alignment, electrical connections, testing for proper operation and commissioning, complete in all respects as per relevant IS/IEC standards, approved drawings and directions of the Engineer-in- Charge.

Supply, installation, and fixing of 11KV Lightning Arrester (LA) set, rated 9kV (RMS) with 10kA discharge capacity, zinc-oxide type, suitable for outdoor mounting, complete with all accessories, clamps, connectors, earthing provisions, and tested for satisfactory operation as per IS 1881/IEC 60099.

Supply, laying, connection , testing and commissioning of 11 KV HT , Single Core ,120 SQ. mm compact circular aluminium conductor, conductor screen with extruded semi conducting compound, , XLPE insulated , insulation screening with extruded semi conducting compound in combination with copper tape ( 0.3KA for 1 sec) , cores laid up, innersheath of PVC tape , galvanised steel flat strip armoured , and overall pvc sheathed cable conforming to is 7098 / (part-ii) 1985 with 013 the latest amendments. For cable laying Excavation of earth depth 0.90 Mtrs. into breadth 0.508 Mtrs. below the ground level and a layer of course sand of 7.5 CM thickness shall be spread over the ground before laying the cable and the cable shall be covered with a layer of course sand of 7.5 CM thickness. The bottom of cable trench shall be leveled and got rid of any sharp material. Above the Layer of Course Sand 3 inch Size Brick is to be provided for protection of cable. Cable route markers to be provided at an interval not less than 50 Mtrs. All conditions to be fulfilled as per DRG No : PCEE/ELG/DRG/2024/2 Dtd 04.10.2024.

Supply, connection, testing and commissioning of LT XLPE Insulated, Cores Laid Up, 015 PVC Inner sheathed, Armoured stranded aluminum conductor cable of following size having Glavanised Wire Solid Aluminum Conductor, Extruded PVC Type ST2 Sheathed, 650/1100V Grade As Per IS 7098(Part 1) 1988.

Cable laying for item no 15 (i) to (ii) by excavation of earth depth 0.75 Mtrs. into breadth 0.508 Mtrs. below the ground level and a layer of course sand of 7.5 CM thickness shall be spread over the ground before laying the cable and the cable shall be covered with a layer of course 016 sand of 7.5 CM thickness including cable laying clamped on wall/metal hume pipe.The bottom of cable trench shall be leveled and got rid of any sharp material. Above the Layer of Course Sand 3 inch Size Brick is to be provided for protection of cable. Cable route markers to be provided at an interval not less than 50 Mtrs. All conditions to be fulfilled as per DRG No : PCEE/ELG/DRG/2024/2 Dtd 04.10.2024

Cable laying for item no 15 (iii) by excavation of earth depth 0.75 Mtrs. into breadth 0.508 Mtrs. below the ground level and a layer of course sand of 7.5 CM thickness shall be spread 017 over the ground before laying the cable and the cable shall be covered with a layer of course sand of 7.5 CM thickness including cable laying clamped on wall/metal hume pipe.The bottom of cable trench shall be leveled and got rid of any sharp material. Above the Layer of Course Sand 3 inch Size Brick is to be provided for protection of cable. Cable route markers to be provided at an interval not less than 50 Mtrs. All conditions to be fulfilled as per DRG No : PCEE/ELG/DRG/2024/2 Dtd 04.10.2024

Cable laying for item no 15 (iv) by excavation of earth depth 0.75 Mtrs. into breadth 0.508 Mtrs. below the ground level and a layer of course sand of 7.5 CM thickness shall be spread 018 over the ground before laying the cable and the cable shall be covered with a layer of course sand of 7.5 CM thickness including cable laying clamped on wall/metal hume pipe.The bottom of cable trench shall be leveled and got rid of any sharp material. Above the Layer of Course Sand 3 inch Size Brick is to be provided for protection of cable. Cable route markers to be provided at an interval not less than 50 Mtrs. All conditions to be fulfilled as per DRG No : PCEE/ELG/DRG/2024/2 Dtd 04.10.2024

Supply, laying inside sick line, fixing with necessary clamps, saddles, MS angle/supports and all other required accessories, making proper end terminations and connections, testing and commissioning of PVC insulated, HRFR (Heat Resistant Flame Retardant), single-core, stranded copper conductor cable conforming to relevant IS specifications, suitable for 1.1 kV grade operation, laid neatly along the route inside the sick line with proper dressing and clamping at regular intervals, including cutting, bending, drilling, fastening, ferrules, glands, binding, identification tags, insulation tape and all incidental works required for complete installation and satisfactory operation, complete in all respects, of the following size

Supplying and erection of 100 mm X 110 mm shackle insulator with G. I. Bolt, nuts, and straps etc. as required on structure as per direction of Engineer Incharge at site.

Supply, fitting, fixing, testing and commissioning of Floor Mounted Outdoor Type LT panel board for The panel shall be metal-enclosed, free-standing compartmentalized, modular type suitable for outdoor installation. The panel shall be dust and vermin proof and the enclosure shall provide a degree of protection of not less than IP-65. The Panel shall be fabricated out of 16 SWG cold rolled steel plates & properly supported using angles & channels. The whole panel shall be mounted on a base frame made out of suitable structural, preferably ISMC Channels. Joints of any kind in sheet shall be seam welded, all welding slag grounded off and welding pitwiped smooth with plumber metal. All panels and covers shall be properly fitted and square with the frames and holes in the panel correctly positioned. The Panel shall be fully compartmentalised with front and back opening doors.. When compartment door is opened, busbar and cable alley shall be shrouded by barrier plates. All panels shall be provided with suitable cable alley and vertical bus bar alley.Each cable chamber shall have cable entry from bottom and suitable removable gland plates shall be 022 provided for this purpose. The cable chamber shall be provided with suitable supporting arrangement between the gland plate and terminals, in the middle. The cable chamber shall have a minimum width of 300 mm depending upon the outgoing cables. Each chamber shall be provided with a hinged type door opening away from the cable alley and shall be provided with black flowertype thumb screw which shall ensure tight closing. The edges of the door shall be provided with a neoprene rubber gasket to make the compartment dust proof.. The panel shall consists of the following Switchgears: Incoming: ( BUS BAR=800 Amps TPN Aluminium) (i)MCCB 4 pole 650 Amps, 36 KA BC Ics=100%Icu , AdjustableThermal Magnetic OL & SC Protection=2 NO (ii)Onload Changeover 630 Amps 4 Pole-1 No For DG & ASEB Outgoing: (i) MCCB 4 Pole 400 Amps, 25KA BC Ics=100%Icu , AdjustableThermal Magnetic OL & SC Protection- 4 Nos (ii) MCCB 4 Pole 250 Amps, 25KA BC Ics=100%Icu , AdjustableThermal Magnetic OL & SC Protection- 4 Nos (iii)MCCB 4 Pole 125 Amps, 25KA BC Ics=100%Icu , AdjustableThermal Magnetic OL & SC Protection- 4 Nos (iv)LED three phase indication lamp RYB -3 Nos for incoming mains. (v) Three phase LED Digital Voltmeter LED indication with inbuilt selector switch (0-1000V) =1 Nos Main feeder. (vi) Three phase Digital LED Ammeter LED indication with inbuilt selector switch (40-400 Amps) = 1 Nos for Main feeder.

Supply, fitting, fixing, connection, testing and commissioning of 80 Watt LED High Bay Luminaire complete with pressure die-cast aluminium housing, integral aluminium heat sink for 023 efficient thermal management, minimum IP65 degree of protection, system efficacy not less than 150 lm/W, suitable for operation on 230 V, 50 Hz AC supply, complete with high efficiency constant current LED driver having surge protection, mounting arrangement, suspension hook/bracket, all necessary hardware, nuts, bolts, washers, connectors and accessories, including making electrical connections with existing wiring/circuit and satisfactory operation, complete in all respects.

Supply, fitting, fixing of LED street light 30W made up of pressure die cast housing with thougened glass cover, IP 66 protection, impact resistence of IK07 & 5 KV external Surge protection device , lumen output 4800 Lm, colour temp. - 5700 K ± 300 K . Electronic Driver Powered by Inbuilt electronic LED driver (SMPS based constant current supply) with lower THD, 024 Output Open / Short Circuit protection, Phase to Phase protection, Over Voltage protection, Surge Voltage protection & other safety test as per IS 15885 Part-2/Sec 13 and BIS compliant. Housing Pressure die-cast aluminium alloy for housing (heat sink) for effective thermal management, sturdiness, excellent corrosion resistant, separate optical and control gear compartment & top opening for easy maintenance. Lumen efficacy of LED 140 lm/W Operating Voltage: 140V to 270 V AC

Supply, fitting, fixing, testing and commissioning of 30W LED Flood Light Pressure Dia 025 cast AL housing, IP 65 , System Efficacy100 lm/W , Impact Protection: IK07 with Short circuit , reverse Polarity Protection, Surge Protection: +/-4KV, THD<10%, operation on 220 240 V/AC, 50Hz to be installed with necessary arrangement as per direction of Engineer-Incharge ar Site.

Supply, fitting , fixing of LED Batten 20W, 4 Ft, ultra slim co-extruded polycarbonate channel with integrated electronic driver should be as per IEC: 62384/IS:16104( SMPS based 026 constant current output, THD<20%), IP20 protection, color temperature=6500K, rated input voltage=230V AC, 50 Hz, power factor=0.9, view angle=120°, lumens output not less than 100 lm/Watt, operating voltage range: 140-270 V AC. LED Should be as per LM-80/IS:16105. Fixture Size: (LXWxH=1156x25x35 mm +/-1) LED Chip specification.,216,Nos,251,54216,Supply, fitting , fixing of LED Batten 20W, 4 Ft, ultra slim co-extruded polycarbonate channel with integrated electronic driver should be as per IEC: 62384/IS:16104( SMPS based constant current output, THD<20%), IP20 protection, color temperature=6500K, rated input voltage=230V AC, 50 Hz, power factor=0.9, view angle=120°, lumens output not less than 100 lm/Watt, operating voltage range: 140-270 V AC. LED Should be as per LM-80/IS:16105. Fixture Size:(LXWxH=1156x25x35 mm +/-1)

Supply, fitting, fixing, testing and commissioning of Air-Circulator Fan, 450 mm 027 sweep, suitable for operation on 230 V, 50 Hz, single-phase AC supply, complete with heavy-duty motor, protective guard, mounting bracket and all necessary accessories for fixing on wall/column, including clamps, anchor fasteners, nuts, bolts, washers, supports and making electrical connections to the existing wiring system, complete in all respects and ensuring satisfactory operation.

Supply, installation testing and commissioning of Energy Efficient Ceiling Fan 1200 028 mm sweep BLDC motor, BEE 5 star rated ceiling fan With regulator enable motor with power of 28 watt with 10% tolerance , motor insulation B type 220-240V 50Hz single phase with Speed minimum 350 rpm minimum air delivery 225CMM complete set of 3 no's. blade , down rods, 2 nos canopies , shackle kit & all remaining accessories including nut bolts Washers complete as required .,

Supply, fitting, fixing, testing & commissioning of wiring materials for concealed type 029 wiring of light point from main/sub-main board to the points by 1.5 mm.sq.single core multi-strand FRLS copper cable through heavy duty PVC pipe complete with modular type switch 6 A, ceiling rose, GI box with suitable modules for fixing switches .

Supply, fitting, fixing, testing & commissioning of wiring materials for concealed type wiring of Fan Point/Exhaust fan point from main/sub-main board to the points by 1.5 mm.sq.single 030 core multi-strand FRLS copper cable through heavy duty PVC pipe complete with modular type switch 6 A, ceiling rose,Modular regulator 100W as required, Modular GI metal box with suitable modules for fixing switches & Regulators and 1.0 sq mm multistrand FRLS copper Cable in green for earth contuinity wire

Supply, fitting, fixing, testing & commisioning of wiring materials for concealed type 031 wiring 5 A plug point from main/sub-main board to the points by 1.5 mm. sq. single core multi-strand FRLS copper cable through heavy duty PVC pipe complete with modular type switch & socket 5 A ,GI metal box with Suitable modules for fixing switch/socket with 1.0 mm² unsheathed FRLS copper cable in green colour for earth continuity wire

Supply, fitting, fixing, testing & commisioning of wiring materials for concealed type 032 wiring 15 A plug point from main/sub-main board to the points by 4 mm. sq. single core multi-strand FRLS copper cable through heavy duty PVC pipe complete with modular type switch & socket 15 A , GI metal box with Suitable modules for fixing switch/socket with 1.0 mm² unsheathed FRLS copper cable in green colour for earth continuity wire.

Supply, fitting, fixing, connection, testing and commissioning of MCCB, 125 A, 4-pole, 033 25 kA breaking capacity, complete with suitable MCCB enclosure, cable glands, lugs, mounting accessories and all necessary hardware, including incoming and outgoing connections, earthing and commissioning, complete in all respects.

Supply of materials and wiring of 63 Amps 3 P+N+E industrial wall socket with DIN rails IP 67 by 16 SQ mm 4 core sheathed Cu cable and 1.0 SQ mm single core copper cable for earth 034 continuity wire from the nearby junction box/Cable termination with proper dressing through 25 mm dia heavy duty PVC suction Hose pipe. The heavy duty PVC suction pipe to be fitted properly on structure by suitable arrangement of MS clamp, fastener bolt etc as per site condition. The industrial plug point should consists of one 80 Amps 4 Pole MCB as control switch and to be suitably fixed on structure simillar to Hensel Cat No AS 169 TS as per direction of Site Incharge.

Supply of industrial type insulated watertight plug, 63 Amps, 415V AC, 50Hz, 3 Phase + Neutral + Earth (3P+N+E), IP67 protection, suitable for outdoor service, made of high impact thermoplastic/self-extinguishing insulating material, complete with screw type terminals, cable gland, strain relief arrangement, rubber sealing gasket and all accessories, conforming to IEC/EN 60309-1 & IEC/EN 60309-2 standards, suitable for connection of 6-16 sq.mm Cu conductors, similar to Hensel Cat. No. 268 or equivalent approved make.

Supply, laying and fixing of 50 mm dia Medium Class G.I. pipe conforming to IS:1239 036 (Part-I), complete with all necessary G.I. fittings such as bends, tees, sockets, unions, nipples, reducers, clamps/supports, including cutting, threading, jointing, fixing on wall/ceiling or laying as required, painting of exposed portions with anti-corrosive paint where required, testing and commissioning complete in all respects.

Supply, laying and fixing of 40 mm dia Medium Class G.I. pipe conforming to IS:1239 037 (Part-I), complete with all necessary G.I. fittings such as bends, tees, sockets, unions, nipples, reducers, clamps/supports, including cutting, threading, jointing, fixing on wall/ceiling or laying as required, painting of exposed portions with anti-corrosive paint where required, testing and commissioning complete in all respects.

Erection of earth by 50 mm dia 3 Mtrs. long (3.6 mm thickness) GI pipe and 32x6 mm 038 GI strip-5 Mtrs,GI nuts, bolts including masonry materials for earthing pit, salt, charcoal etc. and construction of earth pit covered with RCC cover slab 12.7 mm thickness and watering pipe per Drawing No PCEE/ELG/DRG/2024/1 Dtd 30.09.2024

Item Breakup - A-Electrical Works for Construction of New Sick Line at DBRG Coaching Depot.

300 mm long Total 52325.00 Supply, fitting and fixing of GI angle of size 50 x 50 x 5 mm of following length, including cutting, Item- drilling of holes, and supply and fixing of all necessary clamps, brackets, nuts, bolts, washers and 007 accessories. The item is complete in all respects for proper mounting on pole/structure as per approved drawings, site conditions and directions of the Engineer-in-Charge. S No. Item Description of Item Unit Qty Rate Amount No

1000 mm long Total 28930.00 Supply, connection, testing and commissioning of LT XLPE Insulated, Cores Laid Up, PVC Inner Item- sheathed, Armoured stranded aluminum conductor cable of following size having Glavanised Wire 015 Solid Aluminum Conductor, Extruded PVC Type ST2 Sheathed, 650/1100V Grade As Per IS 7098(Part 1) 1988. S No. Item Description of Item Unit Qty Rate Amount No

(i) 400 Sq mm 4 core

(ii) 240 Sq mm 4 core

(iii) 120 Sq mm 4 core

(iii) 70 Sq mm 4 core

(iii) 25 Sq mm 4 core TINSUKIA DIVISION-ELECTRICAL/N F RLY

(vi) 16 Sq mm 2 core

(vii) 10 Sq mm 2 core Total 1518100.00 Supply, laying inside sick line, fixing with necessary clamps, saddles, MS angle/supports and all other required accessories, making proper end terminations and connections, testing and commissioning of PVC insulated, HRFR (Heat Resistant Flame Retardant), single-core, stranded Item- copper conductor cable conforming to relevant IS specifications, suitable for 1.1 kV grade 020 operation, laid neatly along the route inside the sick line with proper dressing and clamping at regular intervals, including cutting, bending, drilling, fastening, ferrules, glands, binding, identification tags, insulation tape and all incidental works required for complete installation and satisfactory operation, complete in all respects, of the following size S No. Item Description of Item Unit Qty Rate Amount No

(i) 16 Sq mm single core copper cable

(ii) 10 Sq mm single core copper cable

(iii) 6 Sq mm single core copper cable

(iv) 4 Sq mm single core copper cable Total 873000.00