87631E8 PROVN OF HIGH MAST LIGHT SYSTEM IN TECH AREA OF ORDANCE DEPOT, AVADI UNDER GE AVADI

Amount

REVISED BOQ UPLOADED ON 11 JUN 2021, BOQ UPLOADED ON 31 MAY 2021 CANCELLED.

Design, fabrication, supply, installation, testing and commissioning of high mast light system, the details of individual components of the system are given below:-

(a) High mast structure, factory made, hot dip galvanised, average 70 micron thickness, 12.5 m high, with door opening at the base of mast, with and including lightning protection finial.

(b) Lantern carriage shall be of MS pipe ERW ring of Class "B" with 6 arms duly welded to symmetrically carry 06 Nos of lanterns

(c) Winch double drum with gears of capacity of SWL 350 kgs, motorised operation with stainless steel rope of grade AISL 316

(d) Power tool of suitable capacity single speed reversible motor to operate in three phase, 415 volts, 50 Hz, AC, trailing cable of 5 core, 2.5 sqmm flexible copper., necessary electrical connections complete.

(e) Foundation works required to anchor the high mast, like reinforcement as required,minimum length and dia of foundation bolt and No of foundation bolts, foundation of earthwork in any type of soil, foundation concrete of PCC 1:4:8, type D2 using 40mm graded stone aggregate and M-25 (Design mix) using 20mm graded stone all shall be as per design of OEM.

(a) All mast accessories shall of make as listed here-in-after in Particular Specifications and shall also conform to relevant IS / IEC codes,

(b) The rate quoted is deemed to include all aspects as recommended by OEM though not specifically stated in the tender documents.

(c) The light fittings, aviation obstruction light and earthing as required shall be measured and paid separately.

(d) The carriage for the lantern fittings shall be designed to be compatible to hold flood light fittings of given capacity of any standard brand of LED flood light fitting..

(d) The particular nomenclature of the different components are given in Particular Specifications here-in-after from one of major OEM of High Mast Lights. These may however vary for other OEM listed here-in-after provided the overall structural stability and serviceabliity of the high mast light system with the fittings match with the given execution conditions detailed therein.

LED flood light fittings, suitable for mounting on lantern carriage of high mast of 12.5m height with and including lamps, system wattage of 200 Watts, meeting LED IS specifications, Class-1, SDCM<5, short circuit and over circuit protection, temperature range 0 to 50 degree centigrade and including connecting up with PVC sheathed 1.5 sqmm 3 core copper conductor flexible wire with the following parameters, complete all as specified and as directed.

(a) Make shall be Crompton Greaves Cat No. CFS-501-200-57-60D-SL-GL-NGG or equivalent of makes as listed here-in-after.

(b) For all other mandatory requirements of LED fittings, please refer Particular Specifications here-in-after.

Twin dome integral LED aviation obstruction light, yellow painted comprising of die-cast aluminium housing. with heat resistant, clear thick glass and accessories with LED lamp complete all as specified and as directed.

(a) Make shall be Bajaj Cat No. BGAV 302 LED or equivalent of makes as listed here-in-after.

(b) For all other mandatory requirements of LED fittings, please refer Particular Specifications here-in-after.

Design, fabrication, supply, installation, testing and commissioning of factory made LT control panel for high mast lighting system, outdoor type, made up of CRCA sheet minimum 3mm thick, framework made of angle iron 40mm x 40mmx 5mm with legs 600mm high duly grouted in PCC pedestal, with hinged doors, front openable, suitable opening for vent and cable entry, with locking arrangement, weather, dust and vermin proof, epoxy powder coated, to minimum IP-54 protection class of IS-2147, pedestal mounted, LT 415 volts, 3 Phase, 4 wire, 50 cycles, including cable galleries, interconnecting bus-bar connection / linkage, suitable for housing and including provision of the following switch gears, including all pre-wiring with PVC copper conductor cable of suitable size, nuts, bolts and washers and in accordance with IS-13947 (Part-I) 1993 & IS-8623 and all as specified and directed by Engineer-in-Charge.

(a) Aluminium bus bar with suitable rating as per OEM's design, 3 phase and neutral with epoxy insulated coating with colour code and aluminium earth , with suitable size of busbar as per OEM's design mounted on suitable FRP / DMC insulators and necessary drilling for connections and duly covered with heat shrinkable PVC sleeves of standard colour code.

(b) MCB, FP 415 Volt, of capacity 63 Amps and rupturing capacity not less than 10 KA as incoming - 01 No.

(c) Power contactor 3 pole, AC, 3 Phase, 70 Amps, coil voltage 240 Volts - 01 No.

(d) Timer analog dial type for controlling the street light, single phase, 230 volts, AC-01 No

(e) LED type pilot indicator lamps RYB phases with backup fuse, Set of three - 01 No.

(f) Connector block 63 Amps - 01 No.

(g) Power tool control with 2 Nos 9 A contactor and raise / lower push button.

(h) Control wiring for automatic operation of street lights with by pass arrangement .

(j) Design of LT panel shall be approved by GE.

Excavation in trenches not exceeding 1.5m wide and not exceeding 1.5m in depth for foundation and getting out in any type of soil and removing to a distance not exceeding 50m and depositing where directed at a level not exceeding 1.5m above the starting point complete all as specified and as directed.

Earthwork shall be carried out by mechanised method.

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

BLANK

Dry river sand laid to required width of trench at bottom and top for cable cushioning all as specified and as directed.

Punned thickness only shall be measured.

Burnt bricks sub class "B" of old size, designation 50, laid dry in trenches with width equal to length of bricks across the cable for cable protection all as specified and as directed.

XLPE insulated, armoured, heavy duty electric cable with aluminium conductor, 1100 volts grade, of size 4 core 25 sqmm laid in trenches / drawn through pipe / fixed on walls / bare in road crossings / paths / drains / ducts / floors / fixed on poles / equipments complete all as specified and as directed.

Earthwork, sand cushioning, protection for cable etc., as required shall be measured and paid separately.

Steel tubing, galvanised, light grade, with all fittings such as bends, elbows, tees etc., and laid in trenches / under roads / crossings etc., of 40mm bore of pipe for cable protection complete all as specified and as directed.

Earthwork, cutting across roads etc., as required shall be measured and paid separately.

Steel tubing, galvanised, light grade, with all fittings such as bends, elbows, tees etc., and fixed on poles of 40mm bore of pipe for cable protection complete all as specified and as directed.

Earthing complete with galvanised iron earth plate electrode 600mm X 600mm X minimum 6mm thick, with and including earthing of 4mm dia GI wire protected by 15mm dia GI pipe light grade upto a length of 7.5m. The plate shall be buried directly in ground vertically to a depth not less than 2.25 metres below ground level with top edge of the earth plate at a depth not less than 1.5 metres below ground level, connected to earth lead as described here-in-before by means of bolts, nuts, washers and checknuts made out of galvanised iron or mild steel, earthing lead protected by as described here-in-before and connected to main switch board or main control board or electric pole all as shown on electrical plate No.3 of MES Sch Part-I including necessary earth work and excavation in any type of soil, plain cement concrete 1:3:6, type C1 chamber, reinforced cement concrete cover slab with locking arrangement and handle of 10mm dia MS round bars 450mm long, 1:2:4 type B1, 50mm thick with 8mm dia TMT bars at 140mm centre to centre both ways, GI pipe of bore 20mm medium grade for watering with funnel, wiremesh, salt, charcoal, lugs including testing complete all as specified and as directed.

Earthing complete with galvanised iron earth plate electrode 600mm X 600mm X minimum 6mm thick, with and including earthing of 32mm x 6mm GI strip protected by 40mm dia GI pipe light grade upto a length of 7.5m. The plate shall be buried directly in ground vertically to a depth not less than 2.25 metres below ground level with top edge of the earth plate at a depth not less than 1.5 metres below ground level, connected to earth lead as described here-in-before by means of bolts, nuts, washers and checknuts made out of galvanised iron or mild steel, earthing lead protected by as described here-in-before and connected to main switch board or main control board or electric pole all as shown on electrical plate No.3 of MES Sch Part-I including necessary earth work and excavation in any type of soil, plain cement concrete 1:3:6, type C1 chamber, reinforced cement concrete cover slab with locking arrangement and handle of 10mm dia MS round bars 450mm long, 1:2:4 type B1, 50mm thick with 8mm dia TMT bars at 140mm centre to centre both ways, GI pipe of bore 20mm medium grade for watering with funnel, wiremesh, salt, charcoal, lugs including testing complete all as specified and as directed.

Sri Lakshmi and Company

PSK Enterprises