PROVN OF 01 HIGH MAST LIGHT, WIRING AND STANDBY POWER SUPPLY WITH CONNECTED ITEMS AT CERTAIN OTM LOCATIONS AND PROVN OF IRON GRATING AT AF STN CHABUA UNDER GE(AF) CHABUA

Excavating in trenches n exc 1.5 mtr wide and n exc 1.5m in depth , for foundation ,etc or for shafts, wells , cesspits, main holes etc.n exc 10 sqm on plan and n exc 1.5 mtr depth and getting out on soft/ lose soil.

Returning, filling in, including spreading , levelling , watering and well ramming in layers not exc 25cm of any soil all as specified and directed

Removing excavated materials(soils) n exc 50m and depositing where directed at a level n exc 1.5m above the starting point all as specified and directed

Supply & lay HDPE pipe 120mm bore for laying of LT cables etc complete with all accessores all as specified and directed

Supply and Laying in trenches or drawn through pipe or fixed on wall / poles , LT UG cable 1100 Volts, heavy duty XLPE insulated, screened, PVC bedded, galvanised steel strip or wired armoured with aluminium of following size:- (a) 25 Sqmm 31/2 core

(b) 95 Sqmm 31/2 core

(c) 240 Sqmm 31/2 core

M&L for boring of holes under road, pavement, hard standing by trenchless technology using ultra sounding technique and necessary machine including HDPE pipe of 150mm dia suitable for 0.4 mpa working pressure complete all as specified and directed

Supply, installation, testing and commissioning of one 16 m high mast with 08 Nos. 200 W LED floodlights, solar PV power supply and battery backup for two nights. Detailed technical specifications are as under 1. High mast: 16 m above ground level, hot-dip galvanized polygonal steel construction, designed for applicable site wind loads in accordance with relevant IS 875 provisions. Include a motorised raising/lowering mechanism, winch, head frame, lantern carriage, locking arrangement and maintenance accessories. 2. LED floodlights: 08 Nos. × 200 W, total connected lighting load 1.6 kW. Outdoor floodlights shall have a minimum IP66 enclosure, suitable surge protection, high-efficiency LED modules, corrosion-resistant housing and photometric test documentation. 3. Solar PV array: Approximately 5 kWp of PV modules, including mounting structure, DC cabling, connectors, isolators and suitable overcurrent protection. 4. Battery bank: Approximately 30 kWh nominal LiFePO₄ battery capacity with battery management system, cell protection and suitable enclosure. Final capacity shall be verified against the approved operating schedule and guaranteed autonomy. 5. Charge controller: MPPT-based controller with PV input, battery charging regulation, overload protection, low-voltage protection and monitoring facilities, rated for the selected PV and battery configuration. 6. Foundation: RCC foundation designed according to soil bearing capacity, mast manufacturer's foundation drawings, wind loading and anchor-bolt requirements. 7. Earthing and lightning protection: Provide suitable earthing electrodes, protective conductors, bonding, lightning protection and surge protection in accordance with applicable standards and site requirements. 8. Testing and commissioning: Include insulation and continuity tests, earthing resistance measurements, PV output verification, battery autonomy tests, lighting operation tests and demonstration of the raising/lowering mechanism. 9. Warranty: Specify a minimum five-year warranty for the complete installation, with separate warranty requirements for the battery, PV modules, LED floodlights and mast mechanism as appropriate. 10. Battery backup calculation For preliminary sizing, assume the lights operate for six hours per night at full load.

S&F in repair for sub main wiring with 2 run of FRLS PVC insulated & unsheathed multistranded copper conductor of nominal cross sectional area 6.0 sqmm alongwith one run of FRLS PVC insulated & unsheathed multistranded copper conductor of nominal cross sectional area 6.0 sqmm as earth continuity conductor drawn through & including PVC casing-caping medium grade complete all as specified and as directed.