Provision of illumination to Ore Stack Yard and transportation road of Tiringpahar Iron Ore Mines in the district of Keonjhar.

Supply, installation, testing, and commissioning of a floor-mounted, front-operated, front-access, extensible-type outdoor cubicle panel, totally enclosed, dust- and vermin-proof, with IP-65 protection, provided with hinged and lockable doors. The panel is to be fabricated from CRCA sheets (16 SWG) including busbars, interconnections, tinned copper crimping lugs, earthing/bonding arrangements, and suitable painting, designed for operation at 415 V, 3-phase, 4-wire, 50 Hz system, and capable of withstanding a fault level of 25 kA symmetrical for 1 second at 415 V, complete in all respects as per specifications and as directed by the Engineer-in-Charge.: MAIN PANEL Incoming: 63 Amp 4P MCCB (36kA) - 1 No 100 Amp,4P, Changeover switch- 1 No Outgoing: 63A 4P MCCB (36kA) - 1 Nos, Astronomical Timer -1 No. MCX 22, 4 Pole Power Contactor, 105A AC-1 - 1 No. Multifunction meter CL-1.0 (I,V,KW,KVA, KWH, KVAH)-1 No. Panel mounted (96 x 96 mm)Earth Leakage Relay-1 No. CBCT for 57 mm ID- 1 Set RYB LED indicator (240 V) -03 Nos. with 6 Amp SP MCB for each Indicating lamp, and Aluminum Bus Bars(25X10 MM). All switchboards are to have provision for cable entry from the bottom as required. The busbars are to be insulated with heat-shrinkable sleeves. SMC/DMC shrouds and busbar supports are to be provided, including all accessories and connections, as per the direction of the Engineer-in-Charge.

Supply and laying of 3.5-core, 50 sq. mm aluminium XLPE armoured cable underground in a trench of size 500 mm × 150 mm, with sand cushioning and brick covering, including all accessories and materials, as required and as per the direction of the Engineer-in-Charge.

Supply and laying of 3.5-core, 35 sq. mm aluminium XLPE armoured cable underground in a trench of size 500 mm × 150 mm, with sand cushioning and brick covering, including all accessories and materials, as required and as per the direction of the Engineer-in-Charge.

Supply and laying of 5-core, 2.5 sq. mm PVC-insulated, multistrand copper flexible cable inside the 10 m high light mast, including all accessories and materials, as required and as per the direction of the Engineer-in-Charge.

Supply and laying of 25 × 4 mm GI earth strips for connection of earth pits, including all accessories and materials, as required and as per the direction of the Engineer-in-Charge.

Earthing with copper earth plate 600 mm X 600 mm X 3 mm thick including accessories, and providing masonry enclosure with cover plate having locking arrangement and watering pipe of 2.7 Meter long etc. with charcoal/ coke and salt as required.

Supply, installation, testing, and commissioning of a 10 m high GI octagonal pole with monkey-mounted arrangement, designed to withstand a maximum wind speed as per IS 875 (250 km/h). The top loading, including the area and weight of fixtures, shall be considered for calculating maximum deflection, and the same shall conform to BS EN 40-3-3:2003. The octagonal pole shall be made from HT steel conforming to grade S355, with a thickness of 4 mm, top diameter 90 mm and bottom diameter 240 mm, with single longitudinal welding. The base plate shall be of size 325 × 325 × 20 mm made of Fe 410 conforming to IS 2062. Foundation bolts shall be of EN 8 grade, 4 nos. of 26 mm dia with PCD 325 mm and 750 mm length. The pole shall have a reinforced, waterproof door opening with locking arrangement and provision for an indoor/outdoor junction box made of FRP/cast aluminium with terminal arrangement, including 3 nos. of 16 A SP MCB and a 4-way terminal block with provision for three-phase, neutral, and earth connections mounted on a 5 mm thick fibre plate inside the pole for cable termination. The pole shaft shall have an octagonal cross-section and shall be continuously tapered, complete in all respects including all accessories, labour, T&P, etc., as per the direction of the Engineer-in-Charge. There shall be no circumferential welding. The welding of the pole shaft shall be carried out by the Submerged Arc Welding (SAW) process. The poles shall be hot-dip galvanised in a single dip as per BS EN ISO 1461, with an average coating thickness of 90 microns. A GI T-arm bracket suitable for installation of 6 nos. of 250 W LED floodlight fixtures shall be provided at the top of the pole. The foundation of the light mast shall be as per the drawing attached in the SBD (detailed pole and foundation drawings attached in the SBD).

Supply, installation, testing, and commissioning of 250 W IP-66 protected LED floodlight fittings, offering a combination of sturdy design, excellent illumination, and aesthetics, suitable for field application, including all accessories and connections, as required and as per the direction of the Engineer-in-Charge.

Supply, installation, testing, and commissioning of 35 kVA, 415/250 V, Dyn11, 50 Hz, 3-phase, core type (CRGO), oil-immersed, ONAN cooling, insulation class-A, outdoor type, copper-wound lighting transformer with off-load tap changer (+10% to -10%), complete with cable end termination boxes on both HT and LT sides, all accessories, materials, labour, T&P, etc. complete as per the direction of EIC and conforming to IS: 1180 (Part-1) / IS: 2026. The transformer shall be procured from a CPRI-approved manufacturer.