PROVN OF HIGH MAST LIGHT FOR CAMP GATE NO 1 AND GATE NO 3 AND PROVN OF LT XLPE UNDERGROUND CABLE, LT PANELS, WALL MOUNTED BUS BAR CHAMBER AT DGNCC AREA UNDER AGE SLDC ELECTRIC SUPPLY UNDER GE (U) E/S DELHI CANTT 10

Amount

Supply, laying and testing cable XLPE insulated , screened, PVC bedded, galvanized steel strip or wire armoured, electric power cables (heavy duty) 1100 volts grade with stranded aluminium conductor of size 185 Sqmm 3.5 core.

Supply, laying and testing cable XLPE insulated , screened, PVC bedded, galvanized steel strip or wire armoured, electric power cables (heavy duty) 1100 volts grade with stranded aluminium conductor of size 120 Sqmm 3.5 core.

Supply, laying and testing cable XLPE insulated , screened, PVC bedded, galvanized steel strip or wire armoured, electric power cables (heavy duty) 1100 volts grade with stranded aluminium conductor of size 95 Sqmm 3.5 core

Supply, laying and testing cable XLPE insulated , screened, PVC bedded, galvanized steel strip or wire armoured, electric power cables (heavy duty) 1100 volts grade with stranded aluminium conductor of size 50 Sqmm 3.5 core.

Supply, laying and testing cable XLPE insulated , screened, PVC bedded, galvanized steel strip or wire armoured, electric power cables (heavy duty) 1100 volts grade with stranded aluminium conductor of size 16 Sqmm 4 core.

Excavation in trenches not exc. 1.5 m wide and not exc 1.5 mtr deep in soft loose soil for laying / taking up/ taking down of cables and getting out and levelling of bottom suface to required level all as specified and directed by Engineer- in- Charge.

Returning filling in,. Including spreading, levelling,. Watering and well ramming soil in layers not exceeding 25 cm thick all as specified and directed.

Removing excavated material (ie soil) from site to a distance n. exc 50 mtrs away and depositing where directed at a level n. exc. 1.5 mtr above the starting point all as specified and directed by Engineer-in-Charge.

Material and labour for river washed and screened, dry sand for filling in trenches below and around underground cables for cushioning of cables etc, complete all as specified and directed. Note : -Only Punned sand shall be measured and paid for.

S&F sub class B bricks having minimum compressive strength 75 Kg/ Sqcm laid in trenches for cable protection etc complete all as directed by Engineer-in-Charge.

Supply and laying galvanised iron pipe 80 mm bore light grade fixed to poles with steel clamps laid under road crossing fixed to wall etc complete all as specified and directed. Note : -Clamps shall be measured and paid separately

Supply and laying galvanised iron pipe 50 mm bore light grade fixed to poles with steel clamps laid under road crossing fixed to wall etc complete all as specified and directed. Note : -Clamps shall be measured and paid separately

(c) Platform of Panel. Platform for the panel with PCC 1:4:8 type D-2 with 40 mm graded crushed stone, 15 cm thick in foundation, brick work in CM 1:6 with sub class 'B', old size bricks, rendering 15 mm thick in CM 1:6 on exposed surfaces and 100 mm thick PCC padding 1:3:6, type C-1 using 20 mm graded crushed stone aggregate on top and grouting bolts etc for panel. The platform shall be such that it is of a height 45 cm above the nearest road level. Note :- (i) All out going feeder shall be connected by cable through suitable size gland plate / glands. (ii) The various feeders shall be indicated by 50 mm size letters in synthetic enamel white paint. (iii) All MCCB with adjustable protection for over load and short circuit and conforming to IEC60947/IS 13947/Pt.II/1993 (Latest Version). The MCCB should have Ics=100%Icu. The MCCBs shall have spreader links and barriers as standard feature of manufacturer . (iv) Energy meter is not included in the present scope of work and shall be shifted from Old LT Panel to New LT Panel. The rate for shifting is also deemed to be included in the quoted rates.

Supply and fixing outdoor type wall mounted bus bar chamber having 04 pole bus bar of rating 320 Amps fitted with MCCB 160 Amps 4 Pole, 35 KA, 50 HZ as incomer inclding suitable hole in bus bar for outgoing cable connection including suitable size nut bolt and fastener complete all as specified and directed.

Supply and fixing outdoor type wall mounted bus bar chamber having 04 pole bus bar of rating 200 Amps fitted with MCCB 100 Amps 4 Pole, 25 KA, 50 HZ as incomer inclding suitable hole in bus bar for outgoing cable connection including suitable size nut bolt and fastener complete all as specified and directed.

Boring of holes under road/pavement/hard standing by manual technology using and necessary machine including material and labour for suitable dia of GI pipe 50 to 80 mm GI pipe complete all as specified and directed.

M & L for earthing complete with galvanized Steel earth plate electrode 600 x 600 x 6.0 mm thick, buried directly in ground (earth pit not less than 2.25 meters below normal ground level) with top edge of the plate not less than 1.5 mtrs below normal ground level surrounded from all sides by mixture of charcoal and common salt and electrode connected to and incl galvanized iron strip 32x6 mm as earthing lead by means of bolts, nuts, check nuts and washers of galvanized iron or steel and earth wire protected by GI protection pipe light grade 40mm dia connected to main earth wire on pole or controll board GI pipe light grade 20mm bore for watering funnel with wire mesh PCC chamber pit in PCC 1:3:6 type C-1 40mm yhick Precast RCC -25 cover reincorced with 8 mm dia TMT bars @ 10 cm C/C on both sides and handle, excavation and earth work in any type of soil and removal upto 50m complete all as sprecified and shown in electrical plate No. 3 connected to earthing test point all as specified or indicated including testing on completion.

Supply, laying, testing and commissioning of UG cable XLPE insulated, armoured heavy duty electric cable, 1100 volts grade with stranded aluminium conductor of 35 sqmm 4 core complete all as specified and directed.

Supply & fixing of 16 M high mast shaft (in two section) having minium 410 mm bottom, 150 mm top, 4/3 mm section thickness, PCD 490 mm with base plate of 560x25mm with two wire rop system and accessories. Accessorie include Head frame, Lantern ring with 08 Nos, of lim arms (symmetrically arrangement), wire ropes, power tool, AOL bracket and 01 set of foundation acccessories, each set consistists of minimum 08 Nos of M30x850mm bolts with anchor plate and 10% templates, suitable for 47 m/sec wind speed including RCC foundation as per drawing atteched.

(a) MAST STRUCTURE:- The high Mast shall be of continuously tapered, polygonal cross section polygon type (Minimum 16- Sides) of 15/16 Mtrs. in height presenting good visual appearance and shall be based on proven design to given assured performance, reliability and service. The Mast shall have an approximate top diameter of say 150 mm to 200 mm and bottom diameter of 410 mm to 450 mm, The weight of the Mast shall not exceed more than 1600 kgs, excluding weight of Luminaire, to maintain good elasticity of slender structure. (b) MAST CONSTRUCTION :- The Mast shall be fabricated from special steel plates of BS EN 10025 grade, cut and folded to form polygonal section and shall be telescopically jointed and fillet welded. The welding shall be in accordance with BS: 5135. The procedural weld geometry and the workmanship shall be exhaustively tested by the radiography on the completed welded and certificates submitted. The Mast shall be delivered in only 2 sections without any circumferential welding at site, which shall be joined together by slip-stressed-fit method. The joining shall be with stressing equipment, thus forming the sleeve joint. No site welding or bolted the joint will be accepted. The overlap distance shall have full penetration of longitudinal welds. The base plate of the mast shall be at least 25 mm. thick. An adequate door opening min 1400mm x 300mm shall be provided at base of each mast such as to permit clear access to equipment like winches, cable pug and socket, etc. The opening shall be complete with a close fitting vandal resistant, weather-proof door provided with a heavy duty lock. For metal protection of the Mast, the entire fabricated Mast shall be hot dip galvanised internally and externally, having minimum average thickness of 65 microns.

(c) DYNAMIC LOADING:- The Mast structure shall be designed for an assumed maximum reaction arising from the maximum wind speed at Mendhar and measured at a height of 10 Mtrs. above ground level . The design life of the Mast shall be min. 25 years. Wind excited oscillation shall be damped by the method of construction and adequate allowance made for the related stresses. The offered High Mast shall be a tested design. (d) FOUNDATION:- The tenderer shall see the site closely and minutely with regard to the nature of the soil, average depth of decomposed garbage and debris at proposed Mast locations and the other site conditions before working out the type of foundation and specifications for the proposed High Mast. The tenderer shall be responsible for the design of the foundation and safe erection and installation of the High Mast in mechanically and structurally safe working condition for the design life of the Mast as per manufacture design The load bearing (safe) capacity of the soil shall be indicted by purchaser to decide the type of foundation and its specifications. The holding down bolts shall be at least 8 Nos of high tensile strength and shall be supplied complete with anchor plate of 6 mm thick for casting into the foundation. The ensure correct vertically and horizontality of bolt alignment. (Note : Cost of foundation as per specification of manufacturer shall be deemed to be included in the rate quoted by the contractor)

(e) LANTERN CARRIAGE:- The fabricated lantern carriages shall be provided for holding fittings and control gear provided on each High Mast. The lantern carriage shall be of special design and of durable steel tube construction designed to act as electric conduit with cable holes fully protected by grummets. The diameter of the lantern carriage shall be suitable so as to hold designed number of LED floodlight fittings, as specified in the tender design along with the control gear boxes and lantern. The lantern carriage shall be fabricated in three parts joined by bolted flanges with SS bolts with nuts to enable easy removal from the erected mast for replacement/ maintenance purpose. The carriage shall be supported/ suspended by three wire ropes for better stability. The lantern carriage Assembly shall not touch the lower surface of the Mast. The carriage design and fabrication shall be such that the lantern carriage will suit the lanterns and their control gear boxes to be used in the work. The Lantern Carriage shall be so installed that it does not cause any damage to the surface of the Mast and is provided with protective buffer arrangement. The complete Lantern carriage shall be hot dip galvanised after fabrication. The weather - proof cast aluminum junction boxes (IP-66) shall be provided on the Lantern carriage assembly from which the inter- connections will be made to the designed number of floodlight fittings and lanterns on the carriage.

(f) MECHANICAL ARRANGEMENT:- For installation and maintenance purpose, it will become necessary to raise or lower the lantern carriage assembly. To enable this, a suitable winch arrangement shall be provided in the base of the Mast, complete with top pulley, winch stainless steel wire ropes and winch driving power tool. (i) WINCH:- The winch shall be of completely self-sustaining type. the winches shall be of self- sustaining type by means of an oil bath and the lubrication shall be of recommended quality. Termination of the ropes of the winch shall be in such a way, that it does not involve distortion or twisting of the rope configuration. At least 6 turns of rope shall remain in tension on the drum even when the lantern carriage is fully lowered. the winch shall be designed to be installed or removed form the door opening at the base of the mast. The winch drums shall be grooved to ensure mechanically strong, stable and tidy rope lay with no chances of rope slippage or skippage. The winch shall be capable of operation by hand or by means of external power tool. Integrated power tool with worm is not acceptable. A test certificate shall be supplied along with each winch in support of the maximum load operated by the winch and for the safety of operation at the full load rotation. A handle shall also be provided for hand operation of the winches.

(ii) TOP PULLEY ASSEMBLY:- The top pulleys shall be of a diameter, appropriately large enough to accommodate the steel wire ropes and the multicore electric cable. The material of construction of the pulley blocks shall be non- corrosive and made of dia cast (LM-6) aluminum alloy. The pulley assembly shall be complete with self lubricating bearing and stainless steel spindle. (iii) STAINLESS STEEL WIRE ROPES:- Stainless steel wire shall be AISC 316 grade 7/ 19 construction 2 Nos ropes for winch and 3 Nos for lantern carriage, 6 mm dia having a breaking load capacity of 2350 kg complete with stainless steel thimbles. The end for connection to the winch drum shall be fitted with thimbles and the thimbles shall be secured by copper compression splices.

(g) CABLE AND CABLE CONNECTIONS :- The connections shall be made with flat core flexible round sheath power cables of appropriate rating as per the schedule. The base compartment of the High Mast shall have one terminal box for terminating the incomer cable. The maintenance cables equal to that within the Mast and fitted with travelling cable 5 core 4 sqmm flexible having plug socket shall be provided to energize lanterns while in lowering position by hooking up at the base compartment socket supply. Similarly, the provision shall be made for electric supply at the base compartment to enable operation of the external power tool for lowering or rising of the lantern carriage assembly. The trailing cables of the lantern carriage rings shall be terminated by means of metal cased plug and socket provided in the base compartment to enable flexibility.

(h) WINCH DRIVING POWER TOOL :- The electric driven tool shall be single speed, (1.2 Mt/min) reversible three phase & hand operated motor. The power tool shall be complete with very robust remote control switch such that the tool can be operated from safe distance of 5 Mtrs. There shall be and arrangement for self alignment off power tool which can be self supported during operation. Manual handle shall be provided for hand operation of the winches. The capacity rating and speed of the electric motor used in the power tool shall be specified by the tenderers. (j) LIGHTNING FINIAL & AVIATION OBSTRUCTION LIGHTS:- One number heavy duty hot dip galvanised lighting finial shall be provided for each mast. Suitable aviation obstruction lights of reliable design and reputed manufacturer shall be provided on top of each mast.

Supply and fix LED Flood light 200W including all fixing accessories completed all as per specified and directed. Make:- Surya Cat No. SLF FL 200W IP 65 Lumos or equivalent in Philips/GE

Supply and fixing of twin dome aviation obstruction lights including all fixing accessories completed all as per specified and directed. Make:- Surya Cat No SLF AL 108 LDR SEN IP 65 or equivelent in Philips/GE

Supply of outdoor stand mounted feeder pillar 32 A TPN MCB incomer,single dial time switch, 25A TP contactor for the automatic switching of luminaries, power tool control with 2 Bos 9A contractors and raise lower push button, incoming 35 Sqmm and outgoing 16 & 2.5 Sqmm terminals (type STD4).

S&F 4 mm dia MS wire 150 mm x 100 mm mesh, made upto into mattress or cages appx 1.5 mtr height and fixed with flate iron/angle by welding in position and directed including complete all as specified and directed.Note:- MS angle /MS flate will be measured and paid seperately.

M & L for two coats of synthetic enamel paint of silver colour on steel surfaces over a coat of red oxide primer including preparation of surfaces complete all as specified.

Material and labour for cement concrete type D-2, 1:4:8 (using 40 mm graded crushed stone aggregate) for sub floors, sub-bases, floors, foundation and paving etc complete all as specified and directed .

M&L for MS work of angles for post and struts of fencing around transformer plinth etc drilling holes, flat iron fillet for securing wire mess by welding to angle iron frame and framed work as in door/ gate of angle and wire mess. Door to be fixed by 03 Nos 100mm long hinges and one sliding door bolt of 300mm long for locking arrangement complete all as specified including.

Demolition of path /concrete in ground floors and pavings n exc 15 cm thickness (below or above ground level) .complete all as specified and as directed.

M & L for earthing complete with galvanized Steel earth plate electrode 600 x 600 x 6.0 mm thick, buried directly in ground (earth pit not less than 2.25 meters below normal ground level) with top edge of the plate not less than 1.5 mtrs below normal ground level surrounded from all sides by mixture of charcoal and common salt and electrode connected to and incl galvanized iron strip 25X4 mm as earthing lead by means of bolts, nuts, check nuts and washers of galvanized iron or steel and earth wire protected by GI protection pipe light grade 40mm dia connected to main earth wire on pole or controll board GI pipe light grade 20mm bore for watering funnel with wire mesh PCC chamber pit in PCC 1:3:6 type C-1 40mm thick Precast RCC -25 cover reincorced with 8 mm dia TMT bars @ 10 cm C/C on both sides and handle, excavation and earth work in any type of soil and removal upto 50m complete all as sprecified and shown in electrical plate No. 3 connected to earthing test point all as specified or indicated including testing on completion.

Note : contractor should procure and provide 50 % of the material as listed above within 15 days of the placing of work order and shall be verified by the Eng-in-charge

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