IMPROVEMENT OF EXTERNAL ILLUMINATION WITH HIGH MAST LIGHTS AT CERTAIN PLACES AND SPECIAL REPAIRS FOR REPLACEMENT OF UNSERVICEABLE BLDG/ PERIPHERY SECURITY LIGHTS WITH CONNECTED ELECTRICAL WORKS FOR OTM / MD ACCN AT CHAFB

Excavation in trenches not exceeding 1.5 mtr depth width and not exceeding 1.5m depth for laying under ground cable/pipes in loose/soft soil complete all as specified and directed.

Returning, filling in, including spreading, levelling, watering and well ramming in layers not exceeding 25cm complete all as specified and directed.

Removal of surplus soil obtained from excavated material not exceeding 50 mtr and depositing where directed at a level not exceeding 1.5 mtr above the starting point complete all as specified and directed.

M&L for sand cushioning for protection of PVC cable with screen wash river sand and punning to proper required cover complete all as specified and directed.

Supply and laying un-reinforced precast concrete cable cover class LV Type I, flat, size 250mmx150mmx40mm complete all as specified and directed.

M&L for GI tubing light grade laid in trenches/under road crossing/fixed on pole/wall/under floor including suitable mild steel FI clamps of required size complete for 40 mm bore size complete all as specified and directed.

Supply & installation of 20 Mtr High Mast light complete, totally hot dip Galvanised, polygonal, tapered & flange mounted type, suitable for wind speed 180 kmph, double drum winch. The Mast shaft shall be in two sections with no circumferential weld and shall be stress fitted at site along with all accessories which includes lantern carriage for mounting 9 nos lumiinaries with 09 number of arms, symmetrically, provision of 9 sets of LED flood light luminaries 250 watt, stainless steel wire rope 6 mm dia, compensating disc, winch, power trailing cable 5 core 2.5 sqmm (one no of circuit per Mast), integral power tool, input supply 415 Volt, method of operation : Integral Power, control panel housing comprising of suitable timer contactor circuit for automatic ON/OFF of high mast lights, LED aviation obstruction light and lighting arrester spike. This also includes design, casting of suitable open raft shallow RCC foundation suitable for safe soil bearing capacity of 10 T/Sqmtr at the depth of 1.5 mtr below ground level along with supply of foundation bolts manufactured from specials steel with nuts washers, suitable size anchor plate templates along with erection and commissioning of high mast lighting system with modern engineering practices and pipe earthing comprising of the following :- Provision of foundation bolts with nuts, washers, suitable size anchor plate, templates as required as per manufacturer direction – 01 Set (b) Provision for LED flood light luminaries 250 Watt including all accessories - Total 8 Nos .Flood light fitting shall be measured and paid seperately (c) Provision of twin dome Aviation obstruction lights LED type. (d) Provision of control panel housing suitable control circuit for automatic ON/OFF of each high mast light alongwith necessary control for integral power tool. (e) Provn of suitable foundation for the high mast considering the safe soil bearing capacity with all materials as per manufacturer recommendations. (f) Erection of high mast with the help of suitable equipments and wiring of luminaries with all wiring materials as per manufacturer instructions.

g) Supply and installation of control panel complete on suitable foundation as per manufacturer instructions. (h) Testing and commissioning of high mast. Notes :- (i) Make of High Mast : Crompton Greaves/ Philips / Bajaj / Havells / Wipro / Orient Electric / Benlo (ii) High Mast should have identification mark of manufacturer. (iii) High Mast shall be installed by authorized company rep only. (iv) Make of all products & LED flood light fittings of High Mast shall be of same brand / Make or as recommended by the manufacturer.