PROVN OF HIGH MAST LIGHTS AT CERTAIN LOCATIONS IN AOR OF 281 MED REGT UNDER GE(WEST)PATHANKOT

Supply, Installation, connecting,comissioning and testing of Galvanised High Mast lighting system of height 12.5 Mtr with a bottom dia not less than 360 mm and top dia not less than 150 mm with sheet thickness 3/3mm 12.50 Mtr each complete all as specified Make of HIgh Mast Lights High Mast system complete in all respect as single job : comprising of the following:-

(a) One No.Mast shaft in two sections / Polygonal section, HR sheet steel conform to IS 2062 12.5 Mtr height ( 2 Parts ) made of S 355 grade as per BS-EN 10025, galvanised as per BS EN ISO 1461, suitable for wind velocity 47 m/sec as per IS 875 part 3 with raising lowering system,comprising head frame,luminaire carriage suitable to install 08 Nos luminaires in symmetrical arrangement,double drum winch,5mm diameter SS wire rope of breaking capacity 2350kg/rope & AISI 316,7/19 const,trailling cable, connector, integral power tool reversible motor 440V 50Hz 0.75/HP/ 1 HP 6 pole in single speed for raising and lowering operation having speed 3mtr/min of 12.50 meter High Mast, including manual handle,junction box,lightening finial etc.The mast shall be capable of safely with standing the strong winds prevailing at site (Pathankot -Punjab) . The deflection at the top during heavy storm periods shall therefore be considered in the design and the mast designed in such way that the above deflection during worst periods is kept to a minimum value.The mast shall be fabricated from special steel plates, conforming to BS-EN10- 025, cut and folded to form a polygonal section as stated above and shall be telescopically jointed and fillets welded. The welding shall be in accordance with BS:5135.The procedural weld geometry and the workmanship shall be exhaustively tested on the completed welds. The 12.5 meter size mast shall be delivered in sections, and shall be jointed at site .

A fabricated Lantern Carriage shall be provided for fixing and holding the flood light fitting and control gear boxes. The Lantern Carriage shall be of special design and shall be of N.B ERW class B M.S pipe / ubes acting as conduits for wires, with holes fully protected by grommets.The Lantern Carriage shall be so designed and fabricated to hold the required number of flood light fittings and the control gear boxes, and also to have a perfect self-balance.The Lantern Carriage shall be fabricated in two halves and joined by bolted flanges with stainless steel bolts and plastic lock type stainless steel nuts to enable easy installation or removal from the erected mast. The inner lining of the carriage shall be provided with protective PVC arrangement, so that no damage is caused to the surface of the mast during the raising and lowering operation of the carriage. The entire Lantern Carriage shall be hot dip galvanized after fabrication.The diameter of carriage ring should be 450 mm (ID)with 8 arm. a suitble trailing PVC cable 5 core x 2.5 sq.mm copper conductor for each high mast should be provided .The length and make should be as per OEMs specifications .

(b) SS Foundation bolts 6 Nos 19-24x850mm alongwith nuts, washers, anchor plates & templates as per the design and drawing of manufacturer. (c) Construction of shallow foundation with M20 grade concrete for the high mast considering the safe soil bearing capacity at site as 10 T/sqmtr at 2 metre depth with all materials and labour. With Erection of the high mast with the help of suitable tools and plants.with all materials and labour.with installation of the mast feeder piller by grouting the stand in concrete. complete all as specified and as directed. Note : Rate shall be inclusion of excavation earth and RCC foundation as per manufactures design drawing. The foundation will be as per the design of the OEMs of High Mast only. The contractor will summit the design of High Mast lights foundation and execute the same as per OEM after the necessary approval of AO/Engr in charge . (d) The suspension system shall be essentially be without intermediate joint and shall consist of any non-corrosive stainless steel of AISI 304 ,7/19 construction or better grade.The stainless steel wire ropes shall be of 7/19 construction, the central core being of the same material. The overall diameter of the rope shall not be less than 6 mm. The breaking load of each rope shall not be less than 1350 kg x 2 individually, giving factor of safety or over 5 for system at full load The end construction of rope to winch drum shall be fitted with talurit.The thimbles shall be secured on ropes by compression splices. Two continuous lengths of stainless steel wire ropes shall be used in the system and no intermediate joints are acceptable in view of the required safety. No intermediate joints, either bolted or else is provided on the wire ropes between winch and lantern carriage.

S&F 150 Watts Food light with pressure die cast aluminium housing with toughened glass having IP-66 degree of protection, individual LED's must have secondary lense for better throw across and along the road, with system luminarie efficacy ≥100 lumen/watt, colour rending index(CRI) of ≥ 70, co-related colour temperature (CCT) of 5700K. Luminaire should have surge protection upto 05 KV and having additional surge protection upto 10 KV for driver, PF ≥ 0.9 and THD ≤10% , operating voltage range from 140 to 270 volt, The potted driver used shall be a constant curent driver with efficiency of ≥ 85%.The manufacturers LOGO shall be engraved into housing of luminaire. All the Flood lights will be of OEM of HIgh Mast only and no mis match / Mixing of lights be allowed. The Contractor will provide the necessary warranty of the HIgh Mast Lights and Lights as per the minimum 2 years from Date of competion of works . Complete all as specified and as directed.

Excavation in trenches in any type of soil n exc 1.5 mtr in width and n exc 1.5 mtr in depth and getting out all as required for laying of cable , foundation of poles or stays etc.

Returning, filling in, including spreading, levelling, watering and well ramming in layers not exc 25 cm in soft/loose soil, complete all as specified

Removing excavated soils n exc. 50m and depositing where directed at a level n exc. 1.5m above the starting point complete all as specified and as directed by the Engineer-in-Charge.

Dry sand cushioning to underground cables provided with a layer of sand 8cm deep before laying th cable and 15cm deep after laying and stretching the cable.

Supply and fixing brick covering with width equal to length of brick as mechanical protection to cable using sub class 'B' bricks laid flat size 230x115x75mm complete all as specified and directed by Engineer-in-Charge.

Supplying, laying, jointing and testing LT underground cable, heavy duty, 1100 Volts, XLPE insulated and sheathed, armoured with multi-stranded aluminium conductor cable , laid in trenches/ducts or fixed to poles/walls or laid under roads/paths/drains/culverts complete all as specified and directed of size 16 Sqmm 4 Core.

Earthing complete with GI earth plate electrode 60cmX60cmX6mm thick burried directly in ground (earth pit not less than 2.25m deep below the ground level) with top edge of the plate not less than 1.5m below normal ground level connected to GI strip 25X 4mm as earthing lead by means of bolts, nuts, checknuts and washers of GI or steel all as shown in electrical plate No 5 including charcoal dust common salt and 20mm GI medium grade watering pipe, 40mm GI medium grade pipe for protection of GI strip upto test point, including funnel with wire mesh, including PCC 1:2:4 type B-1 using 20mm graded stone aggregate with angle iron frame 40mm thick RCC cover with 8mm steel bar 100C/C complete all as directed by Engr in Charge and testing for required value on completion.

Lightening arrestor spike air termination single pointed, copper rod 12mm dia and 300mm long

S&F PVC insulated, PVC sheathed, multi stranded, three core, 1100 volts grade copper conductor cable of size 2.5 sqmm complete all as specified.

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