PROVN OF INSTLN OF 03 X HIGH MAST LIGHTS ALONGWITH PROVN OF THREE PH ELECT CONNECTION IN BN AREA AT LEBONG UNDER AGE (I) DARJEELING

Supply, Install, testing and commissioning of 20 mtr height mast lighting system including all accessories. High galvanized mast light suitable for 9 lantern symmetrically fitted along with their control gear and having two point suspension system with stainless steel wire rope of 6 mm dia 97/19 gauge and double drum winch with luminarie mounting arm, pully assembly, aviation obstruction light, lightning arrester spike including excavation, RCC foundation as per height.

(d) High mast shaft: The high mast shaft shall be in two section continuously tapered polygonal (tropically 16-20) of high tensile steel S355/BSEN 10025 or equivalent IS 2062 Grade. Plate thickness min at top 3-4 mm and 4-5 mm at bottom, top dia ≈ 150 mm, bottom dia ≈ 400-540 mm, suitable for wind speed up to 44 m/s as per IS 875 (Part-3), door opening with vandal-resistant door, etc. (e) Erection of the high mast with the help of suitable tools and plants, wiring of lumnaries with all wiring material like PVC insulated PVC sheathed flexible cable of suitable copper conductor cores of 1.5 sqmm, lugs MCB and all labour for each mast. (f) Supply of LED 250 watts Flood lights luminaire including all accessories and silicon filled potted driver, IP-66 protection, modal GLEAM-GF 300L WH NB-A5PC SD of Bajaj Driver must have BIS registered. - 09 Nos in each mast. (g) S & F for aviation obstruction light LED type red color, suitable for high mast top mounting, complete fixing arrangements. - 01 Pcs. (h) Supply of control panel housing 32 Amps TPN MCB incomer double dial timer contact circuit for the automatic. control of luminaries out going terminals and control circuit for the power tool motor.

(j) Provision of GI pipe earthing for High Mast with 2.5 mtr long, 40mm dia GI pipe, including connection to High mast earth terminal with 25x3mm size GI strips with all materials and labour - 01 in Nos for each mast. (k) Installation of the mast feeder pillar by grouting the stand in concrete - 01 in Nos for each mast. (l) Material Specification:- (i) Mast & Pole shaft – BSEN 10025, ASTM A572, IS 5986. (ii) Foundation : IS 2062/E250A (iii) Base Plate : IS 2062 (iv) Galvanization : IS 4759/2629 & ASTM A123 (m) The contractor shall submit purchase of this items. The Engr-in-Charge shall deface and submit along with RAR/FB for payment. Non-submission may lead to non-payment.

Supply and laying of LT cable XLPE insulated, armoured heavy duty electric cable with aluminium conductor, 1100 volts grade cross section area 35 Sqmm 3.5 core as specified and directed by Engr-in-Charge.

Excavating in trenches, n exc 1.5 m wide and n exc 1.5 m in depth; for foundation, laying of underground cables etc. or for shafts, wells, cesspits, manholes, pier holes, under groung cables etc. n exc 10 sq m on plan and n exc 1.5 m in depth and getting out in soft / loose soil, complete all as specified and directed.

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

Removal of surplus excavated soils to a distance not exceeding 50m and depositing where directed at a level not exceeding 1.50m above the starting point, complete all as specified and directed.

M&L GI pipe light grade 50 mm dia complete with all fitting laid in ground/trench for protection of cable all as directed and specified.

Supply and Lay in trenches, fixed to wall/pole DWC pipes (Double wall corrugated) of dia 63 mm for carrying UG cable or as & where directed complete all as specified and directed and as specified.

M&L for cutting existing road/hard standing not exc 20x45 cm in wide & depth getting out excavated material for laying cable/GI tube, returning filling & well ramming watering finish suraface 10 cm from top using PCC 1:3:6; including removal of surplase soil complete all as mspecified and directed by Engr-in-Charge.