Tender For Provn Of 01Xhigh Mast Light Set For Convoy Ground At Suranussi .; 1 Supply, erection, testing and commissioning of 16m high mast light system for 9 luminaires (raising & lowering type with motor and manual) having following specifications & accessories.(a)High Mast : The high mast light system of 16m high mast, (made up of 2 sections) entirely high mast structure (internally and externally) and all MS part shall be hot dip galvanized. The high mast shall be of continuously tapered polygonal cross section of 20 sides made up of two sections having sheet thickness 4mm min for lower section and 3 mm min for upper section. The mast shaft shall be manufactured from high tensile steel plate conforming to S355 grade as per BS-EN 10 025 having longitudinal welded seam only and without any circumferential weld joint. The minimum dimension across flats of top shall be 150mm and bottom (base) 360 mm or as recommended by OEM. The base plate shall have thickness 25mm and diameter 560mm min. It shall have door at suitable height of size 1200x250mm min or as recommended by OEM having vandal resistance, weather proof type with pad locking facility. The base flange shall be provided with supplementary gussets between the bolt holes. The door opening shall be carefully designed and reinforced with welded steel section, so that the mast section at the base shall be unaffected and undue buckling of the cut portion is prevented. 2 (b) Luminaires Carriage:Hot dip galvanized luminaire carriage of suitable diameter designed to install symmetrically 9 Nos luminaries fabricated from ERW tubes in two halves having bolted flanged joints at side with stainless steel bolts and nuts to permit removal from an erected mast. Holes are to be provided in the bottom side of the tubes to act as conduit for wiring cables. Luminaires fixing arms and plates are to be welded to the carriage. Carriage shall have fitted with buffer arrangements to prevent damage to the mast finish during movement. Suitable junction box (as applicable) shall be cast aluminium weather proof provided on the carriage assembly for terminating the trailing cable and power cable to luminaries.(c) Winch/ Power tool:The double drum winch shall be completely self-sustaining without the need for brake shoe, springs or clutches and self-lubricating type by means of an oil bath. The worm gear ratio shall be of suitable ratio and having safe working load 500 Kg min (breaking load 2350 Kg). The drums are to be grooved to provide the perfect seat for the stable and tidy rope lay arrangement for distortion free rope and termination. The winch shall have provision to operate electrically through power tool or manually in case of power failure. single speed, 415 volt /240 volt reversible, power motor of 1.5 HP rating min or as recommended by OEM suitable to lift the load mounted on plate to adjust the length of motor of chain shall be provided in base compartment. 3 Mechanical torque limiter mounted on motor shaft for start/ stop transmission of motion shall be provided. The power tool shall be supplied with required wiring & accessories suitable to match with High mast control panel.(d) Hot dip galvanized head frame as a capping unit of the mast of the weldedsteel construction and provided with guides and separators between the rope and cable complete with aluminium pulleys with bush bearing mounted through stainless steel shaft suitable to accommodate wire rope and multi core trailing cables. The head frame to be provided with guides and stops with PVC buffer for the locking of the luminaire carriage. The pulley shall be covered with a hot dip galvanized canopy. The suspension wires shall be made of stainless steel wires rope - 05 No ( 3 Nos for lantern carriage & 2 Nos for double drum) of AISI 316 grade, 7/19 construction with central core in the same material of 6mm dia. The breaking load capacity of wire rope should be 2350 Kg x 2 minimum or as recommended by OEM. The end termination luminaire carriage shall be with stainless steel thimble etc.(e) The multi core flexible power trailing cable 5 core minfrom base compartment to junction box at luminaries carriage shall be EPR insulated PCP sheathed 1100 volts grade copper conductor with male female connectors of 2.5 Sqmm having suitable cores for 9 Nos luminaires or above as required at site for control of these lights as directed by Engineer-in-Charge. The system shall have in-built facilities for testing the luminaries while carriage in lowered position. 4 (f) One number heavy duty hot dip galvanized lightning finial shall be provided for the mast. The lightning finial shall be minimum 1.2 M in length or as required so that the lantern carriage also comes within the safety zone and shall be provided at the centre of the head frame. It shall be bolted solidly to the head frame to get a direct conducting path to the earth through the mast. The lightning finial shall not be provided on the lantern carriage under any circumstances in view of safety of the system. A suitable space shall be provided at base of the mast to connect with earthing. The mast shall have single/double dome LED aviation light at the top of suitable capacity with necessary connection wire/cable.(g)Mast shall be erected with foundation bolt set comprises of anchor plate with 8 Nos high tensile studs/bolts with nuts. The foundation bolt shall be TS600, 24mm diameter, 750 mm long or as recommended by OEM.(h) Construction of shallow foundation with suitable grade RCC/concrete or as recommended by OEM for the high mast considering the safe soil bearing capacity at site as 10 T/ sqm at 2 metre depth with all materials and labour complete as per OEM drawing after approval of Engineer-in-Charge. The rate also include the cost of PVC/GI pipe 3 inch dia required to be fixed in foundation concrete for the passage of cable. 5 Notes :(i) The quoted rate include the cost any type of special T&P, tools, equipments required at site for erection, installation of the complete high mast light system. The quoted rate include the cost of any control/junction box for lights, foundation PCC/RCC work other accessories, items which is necessary for the satisfactory functioning of the high mast light system but not mentioned in here. (ii) The contractor shall provide genuineness/ authentication certificate from manufacturer to confirm that High mast is of make approved by deptt as specified in CA. No payment shall be released till contractor provide the same. 6 S&F 250 watt Energy saving, environmental friendly, long life, exclusive innovative die-cast aluminium Housing IP66 flood light suitable for highlighting architectural facade and general purpose lighting Havellsmodel No. JETAIRISMAXFL250WLED757PWBLTG HSN Code 9405or equivalent from other specified makes in Appendix of Paricular specifications, complete for high mast light aaplication complete with fixing arrangment & bolts all as specified and directed by Engr-in-Charge. 7 M&L for earthing complete with galvanized steel earth electrode 60 cm x 60 cm x 6mm buried directly in ground vertically to a depth not less than 2.25 m below ground level with the top edge not less than 1.5 mtr below ground level connected to galvanized iron or steel earth lead 32x6 mm dia by means of bolts, nuts, chock nuts and washers and other end connected to earthing test point including funnel, watering pipe of 20 mm bore (Light grade) GI pipe wire mesh, charcoal or coke and common salt in alternate layers all around the earth electrode compacted thickness 15 cm, earthing pit in PCC (1:3:6) type C1, 50 mm thick pre cast RCC cover slab (1:2:4) type B1 set in CM (1:4), reinforced with 8 mm dia TMT bars @ 15 cm c/c and suitable handle of 10 mm dia MS round bars including earth work in excavation in soft/loose soil, desposal of soil not exc. 50 meter complete and testing on completion all as shown in electrical plate No-5 of MES schedule, part-I complete all as specified and directed by Engineer-in-Charge. 8 Supply, installation, commissioning and testing ofHigh Mast Timer Panel(CPRI Approved) out door type 415 Volts, 50 Hz, 3 Phase 4 wire supply Pedastal mounted center opening with locking arrangement , factory assembled,CPRI approved, weather and vermin proof (protection class IP-54) canopy on top, outer door made out of 3.15 mm thick CRCA sheetfor individual hinged type door for MCBs , powder coated and supported on 40 mm x 40 mm x 5 mm M.S angle iron frame, height of legs 1000 mm min complete with Al Bus bar 150 Amp, min complete to accommodate including the following:-(a) TPN MCB 32 Amp-01 No(b) TP Contactor 25 Amp-01 No(c) TP Contactor 09 Amp-02 Nos(d) Digital Timer Switch astronomical type-01 Nos(f) SP MCB 6 Apm-01 No (g) Push Button-02 Nos (h) Toggle Switch-01 No (j)Glass Fuse-01 No (k) Neutral Link-01 No (l) Terminals:- (a)Incoming Suitable 35 Sqm-01 No (b) Outgoing 16 Sqmm(Close Type)-04 Nos© Outgoing 6 Sqmm (Close Type)-03 NosNote:-Quoted rate includes cost of all item i.e Contactor ,timer ,reqrd for up & down motion of mast light auto ON/OFF of High Mast light with manual Provision. 9 Supply and laying Cable XLPE Insulated PVC Sheathed, galvanized steel strip or wire armored, electric power cables (heavy duty) 1100 Volts grade with stranded aluminium conductor of size 25 Sqmm 4 core complete all as specified and directed. 10 Excavation intrenches in soft/Lose soilnot exceeding 1.5 mtrdeep and not exceeding 1.5 mtr wide for laying of cable and erection of poles all as specified and directed at site. 11 Returning, filling in including spreading, leveling, watering and well ramming excavated soft/lose soilin layers , all as specified and directed at site. 12 Removing excavated materials (soft / lose soil )to a distance not exceeding 50 metre and depositing where directed at a level not exceeding 1.5m above the starting point all as specified and directed. 13 M&L for sand cushioning to under ground cable using tibba sand and gently punning to cushioning to cable complete all as directed by Engr-in-Charge. 14 M&L for providing of new sub class B bricks, old size, well burnt laid flat dry for protection of under ground cable complete all as specified and directed. 15 S&F LED Aviation Light single dome 30 watt suitable for High Mast Light complete with fixing arrangment & bolts all as specified and directed by Engr-in-Charge. 16 Supply and fix in replacement of Time light distribution board analog Time switch 230 volt three phase of 16 Amps rating with contactor fixed inside steel enclosure box and fixed to pole/LT Panel including clamps, nuts, bolts and washers etc complete all as specified and directed.
