PROVISION OF HIGH MAST LIGHT AT UARF KULAMAVU A UNIT OF NPOL UNDER AGE I R AND D KOCHI

Amount

Excavation in trenches, not exceeding 1.5 meter wide and not exceeding 1.5 meter in depth and getting out in soft/loose soil complete all as specified & directed.

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

Removing excavated material (soil) n exe. 50m and depositing where directed at a level n exe. 1.5m above the starting point complete all as specified and directed.

M&L for sand cushioning in trenches for protection of cable complete all as specified & directed.

Supply and laying un-reinforced precast concrete cable cover cass LV, Type - 2 flat size 300mm x 180mm x 40mm thick, concrete grade grade M-20 minimum, all as specified.

Earthing complete with galvanised steel plate electrode 60 cm x 60 cm x 6 mm thick buried directly in ground vertically to a depth not less than 2.25 mtr below ground level with top edge of earth plate at a depth 1.5 mtr below ground level connected with galvanised iron strip 32 x 6 mm up to DB/main switch as earthing lead by means of nuts bolts and washers of galvanized iron protected by 15 mm dia light grade GI tubing, funnel, wire mesh, 20mm bore GI tubing medium grade watering pipe, including concrete pit in PCC 1:3:6 type C-1, precast RCC (1:2:4) type B-1 cover slab of size 350x350x50mm reinforced with 8mm dia TMT bars @ 15cm c/c in both ways and 10mm dia MS handle of suitable size, charcole and slat in alternate layers necessary excavation and earth work in soft/loose soil all as shown in Electric plate No. 3 of SSR part-I and testing complete all as specified and directed.

M&L for 40 mm dia GI pipe 'light grade' with all fitting for protection of cable laid on road crossing, drain crossing, laid in floor or fixed to iron structures/poles complete all as specified and directed.

Supply and laying 35 Sqmm 3.5 core LT underground XLPE insulated armoured heavy duty electric cable with aluminium conductor 1100 volts grade of following cross sectional area in trenches including taking out old defective unserviceable cable complete all as specified and as directed.

Supply, installation, testing and commissioning of timer control panel, pole/wall/floor mounting made out of CRCA steel sheet of duly powder coated with locking arrangement, including internal wiring complete with bypass arrangements as per manufactures recommendation and design complete all as specified and as directed. Make : Havells Cat Part No IHXTS09120 or equivalent make of Indo Asian/L & T.

Supply, fixing, connecting and testing 300 Watt LED flood light 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. Minimum certified warranty two yrs with service support all as specified and directed. Make : Crompton Cat Part No LSFO-300-CDL/60 or its equivalent make of Havells/Bajaj/Surya/HPL.

M & L for 20 meter high hot dipped galvanized mast sysytem of two section, 3 mm sectional thickness top and 4 mm of bottom, Top (A/F) dia 150 mm and bottom(A/F) dia 460 mm suitable for 8 Nos 300 Watt intigral LED flood light carriage, symmetrical orientation fitted along with their control gear and having two point suspension system with steel wire rope of 6 mm dia and double drum winch with luminare mounting arm, aviation obstruction light, lightning protection spike, power tools with input voltage 415 and output voltage 240 V and integral motor including RCC foundation complete with following and as specified in particular specification. Make : Crompton Cat Part No HM-20A-LM-ACC or its equivalent make of Bajaj/Havells/Surya. Note: (a) The cost of earthwork, foundation, RCC, PCC etc work shall be deemed to be included in the unit rate. No measurement to be done in relevant items of this sch. (b) Warranty of complete LED luminaries fitting shall not less than three years and Life expectancy of LED's minimum 50,000 burning hrs.

(a) High mast fabricated from steel plates conforming to BS-EN 10025/IS 2062, cut and folded to from a polygonal section. Masts are in three sections for 20 Mtr heights having only longitudinal weld conforming to BS 5135/AWS. The mast is provided with a fully penetrated flange which is free from any laminations or incursions. The welded connection of the base flange is fully developed to the strength of the entire section. The base flange is provided with supplementary gussets between bolt holes to ensure elimination of helical stress concentration. For environmental protection of the mast, the entire fabricated mast is Hot Dip Galvanized (Single Dip)internally and externally, having uniform coating thickness of 85/65 microns for bottom / top sections respectively.

(b) An adequate door opening shall be provided at the base of the mast. The opening is such that it permits clear access to equipments like winch, cable, wire rope, plug & socket etc. and also facilitates easy removal of the winch for servicing. The door opening is complete with a close fitting vandal resistant allen key locking with provision for external lock. The door opening is carefully designed and reinforced with adequate steel section so that the mast section at the base is unaffected, and undue buckling of the cut portion is prevented under heavy wind condition. (c) Mast structure is designed to sustain an assumed maximum reaction arising from wind speed as per IS 875 (Part 3) 1987 (three seconds) which is measured at a height of 10 mtrs above ground level.

(c) Mast structure is designed to sustain an assumed maximum reaction arising from wind speed as per IS 875 (Part 3) 1987 (three seconds) which is measured at a height of 20 mtrs above ground level.

(d) The high mast is provided with accessories which include a raising and lowering system (R & L), trailing cable, power tool, feeder pillar for automatic switching operation of luminaires, lighting finial and aviation obstruction warning light.

(e) The R & L system will comprise of a double drum winch, SS wire ropes, head frame and lantern carriage. The winch is self lubricating and self sustaining type. It does not require any brake or clutch and has a lifting capacity of SWL 750 Kgs.

(f) The wire ropes are of stainless steel grade AISI316 with minimum 6mm diameter and 7/19 construction. Its central cores is also SS and have a minimum breaking strength of 2350Kgs. The power tool is integral type suitable for handling the total head load. It has a mechanical torque limiter to ensure safety and also a manual handle is provided.

S. M. Enterprises

ZOOM ENTERPRISES

M/s.Rejoy Constructions

RAINBOW ELECTRICALS