PROVN OF HIGH MAST LIGHTS, CHAIN LINK FENCING AND APPROACH PATH FOR ANTENNA INFRASTUCTURE OF SIGNAL UNIT AT AF STATION UNDER GE(AF) GORAKHPUR.

Excavation in trenches n. exc 1.5 m wide and n.exc 1.5 m in depth and getting out soft/loose soil complete all as specified and as directed for laying of under ground cable, foundation of pole and stay etc. complete all as specified and as directed .

Returning, filling in, including spreading, levelling, watering and well remmining in layers not exc 25 cm complete all as specified and as directed

Removing excavated material n.exc 50 m and depositing where directed at a level n. exc 1.5 m above the starting point all as directed.

M&L for sand cushioning to U/G cable in layers of 23 cm thick( 8 Cm before laying the cable and 15 Cm thick after laying the cable) in trenches complete all as specified and directed.Note :- Only Puned down volume shall be measured.

Supply and lay burnt best quality locally available old size sub class 'B' bricks laid in trenches perpendicular to U/G cable for cable protection complete all as specified and as directed.

Supply and lay in trenches or passing through pipe XLPE insulated armoured, heavy duty electric cable with aluminium conductor 1100 volts grade, cross-sectional area 25 Sqmm 4 core complete all as specified and as directed.

Boring holes horizontally under road without damaging the surface of road ( minimum 1.0 Metre below the road surface with the help of GI tubing not exc 50 mm bore(dia) for passing UG cable, complete all as specified and as directed. NOTE : - GI Pipe laid will be measured and paid separately under respective item

Supply and fixing LED flood light fitting 120 W, 230 volt , AC outdoor type with thermal management in multiple optics and equipped with IP 66 protection, with impact and corrosion resistant complete with driver and lamp and install on 15 mtr high mast light all as specified and directed.

S&F of 25 mm bore GI tubing light grade with all fittings laid across road, in trenches or across PCC drain, along electric pole or floor/wall for cable protection with suitable size of MS clamps and nut and botls/washers complete all as specified .

Supply, Errection, Installation , Commissioning& testing of High Mast lights, and high mast lights detail under mentioned Technical data cart part Specification in closed) comprising of the following :- (a) Supply of galvanized Steel mast of 15 mtrs high Mast lighting system technical data with the scope of work.(b) Steel mast height 15 Mtr (galvanizing std IS 4759 )( Material construction of high mast sheet will be of BSEN 10025 / lS 5986 Gr Fe 510 or equivalent) cross section of mast 20 sided regular polygon & No of parts along length 2 ( Top dia 150 mm (A/F) & bottom dia 360 mm (A/F), (c ) Part 1: 8301 mm (Bottom) thickness 4mm ; Part 2: 8300 mm thickness 3 mm (d) Metal Protection - Hot dip galvanizing internally & externally (e)Thickness of galvanization - average coating 86 microns for > 5mm sheet thickness/65 microns for <5mm sheet thickness (f) Base plate details :- base plate dia : 560 mm, thickness : 25mm (g) Lightning protection finial - 1.2m Galvanized, single spike (h) HD bolts dia 24mm/ HD bolts Nos : 6 / HD bolts 850 mtr long & PCD 460 mm/ HD bolts embedded length as per manufacturer TDS (j) Material construction : 48.3 OD ERW class B Sq pipes or circular pipe with 6 arms.(k) Dia of lantern ring - as per head frame design in two halves (l) LED type twin Aviation obs light - 01No (m) Wind 2 drum manual and power operated , Speed 50m/sec; terrain category- 2, Class-A, incl 3 phase 415 volts 1.5 HP power tool) (n) Stainless Steel wire Rope : grade AISI 316, 7/19 Con , dia 6 mm braking load minimum -2350 Kg,(o) Fixing of LED ligth 6 to 9 Nos flood light. Note : items has been measure and paid separately (p) Service Wiring feeder to flood light FRLSH , IS- 694 copper cable size 2.5 Sqmm (minimum) x 5 core Note : -(i) Work to be executed as per standard engineering practices and as per manufacturers instruction,(ii) Before placing the order the design/ drawing of high mast of there manufacturer shall be got approved by GE(A/F).,(iii) Work to be executed by the manufacturer or there authorized rep and and undertaking of the same from the manufacturer be submitted prior to excution / completion.,(iv) All the cost of Civil work and Size of RCC foundation Shall be carried out as per manufacturers drawings will be inclusive of this Quoated Rate.