PROVISION OF HIGH MAST LIGHT AND BUILDING SECURITY LIGHTS FOR P 206 P 207 P207A P 209 P213A P213B P213C P213D AND PROVISION OF HIGH MAST LIGHT AND GARDEN LIGHT AT NAD BHEEMUNIPATNAM

Amount

Supply & Erection of Galvanized steel high mast lighting system of 15 meter in two section, 3mm section thickness, top dia 150 mm bottom dia 340 mm, with 2/3 wire rope system and its accessories, 3 phase motor system for taking up/down the light fixing arrangement of the high mast controlled from the timer switch panel including suitable size of RCC foundation and anchoring with nuts and bolts and suitable for loading 08 Nos 150 watt LED lights symmetrically fitted along with their control gear and having two point suspension system with stainless steel wire rope of 6 mm dia 97/19 guage and double drum winch with luminare mountng arm, pully assembly, aviation obstruction light. Lightning arrestor spike including RCC foundation as per height compelete all as per manufacturers instructions,specified and as directed with the following details :-

(A) Details of High Mast System : (i) Hight of Mast : 15 Mtr. (ii) No. of Sections : Two Sections (iii) Material construction : S355 grade as per BS:EN10 025 or equivalent (iv) Base dia, and top diameter (A/F): Top dia 150 mm (minium) & Bottom dia 610 mm (minimum) (v) Plate Thickness : Top 4 mm Middle : 4mm Bottom : 6mm or higher thickness (vi) Type of Joints : Stress fit at site (vii) Length of overlap : Top: 600 mm, Bottom: 800mm (minium) (viii) Provision for cable termination : MCB Isolator (ix) Diameter of base plate : 840 mm (minium) (x) Thickness of base plate : 30 mm (minium) (xi) Lightning protection finial : G.I single spike of length 1200 mm (minium) (xii) Size of opening & door at base : 1200 mm x 250 mm (minium) (xiii) Lightning protection finial : G.I single spike of length 1200 mm (minium) (xiv) PCD of foundation bolts : 700 mm (minium) Make: Wipro/Philips/Bajaj/GEC/CG as approved by GE.

The High mast shall be of continuously tapered, polygonal cross section, at least 20 sided, presenting a good and pleasing appearance. The mast shall be manufactured using special steel plates, conforming to BS-EN10-025. Each section shall be fabricated out of single plate duly folded and welded. There shall be only one longitudinal seam weld per section. The mast structure shall be suitable to sustain an assumed maximum reaction arising from a wind speed as per IS 875 (three second gust), and shall be measured at a height of 10 meters above ground level. The design life of the Mast shall be atleast 25 years.

(B) Lantern Carriage: The Lantern Carriage shall be of special design and shall be of steel tube construction, the tubes acting as conduits for wires, with holes fully protected by grommets. The Lantern Carriage shall be so designed and fabricated to hold the required number of flood light fittings and the control gearboxes, and also have a perfect self balance.

(C) WINCH: For Raising and lowering the lantern carriage for the installation and maintenance of the luminaries and lamps, a suitabe Winch arrangement shall be provided with the winch fixed at the base of the Mast and the specially designed hard frame assembly at the top. The winch shall be of completely self sustaining type, without the need for brake shoe, springs or clutches. Each driving spindle of the winch shall be positively locked when not in use, gravity activated PAWLS. Individual drum also should be operated for fine adjustment of lantern carriage. Details of Winch/Power tool (i) Type/SWL of winch : Double drum, SWL 750 Kg (ii) Method of opertion : Motorized (iii) Motor capacity : 1.5 HP (minium) (iv) Torque limitor : With mechnical tripping facility

(D) Head Frame : The head frame, which is to be designed, as a capping unit of the mast, shall be of welded steel construction, galvanized both internally and externally after assembly. The top pully shall be appropriate diameter, large enough to accommodate the stainless steel wire ropes and the multi-core electric cable. The pulley block shall be made of non-corrodable material, and shall be of die cast Aluminium Alloy (LM-6)

(E) Stainless Steel Wire Ropes: The suspension system shall essentially be without any intermediate joint and shall consist of only non-corrodable stainless steel of AISI-316 grade. The stainless steel wire ropes shall be of 7/19 construction, the central core being of the same material. The overall diameter of the rope shall not be less than 6mm, safety of over 5 for the system at full load as per the TR-7 referred to in the beginning of this specification. The end constructions of ropes to the winch compression splices. Two continuous lengths of stainless steel wire ropes shall be used in the system and no intermediate joints are acceptable in view o the required safety. No intermediate joints/ terminations. Either bolted or else, shall be provided on the wire ropes between winch and lantern carriage. Details of Stainless Steel Wire Rope: (i) Grade/construction : AISI 316,7/19 construction (ii) Number of roples : Two continuous (iii) Diameter : 6 mm (minium) (iv) Braking load capacity : 2250 kg x 2 (minium)

(F) Power Tool for the Winch: A suitable, high-powered, electrically driven, internally mounted power tool, with manual over ride shall be supplied for the raising and lowering of the lantern carriage for maintenance purposes. The speed of the power tool shall be to suit the system. The power tool shall be single speed, provided with a motor of the required rating. The power tool shall be supplied complete with suitable control. The capacity and speed of the electric motor used in the power tool shall be suitable for the lifting of the design load installed on the lantern carriage. The power tool mounting shall be so designed that it will be not only self-supporting but also aligns the power tool perfectly with respect of the winch spindle during the operations. Also a handle for the manual operation of the winches in case of problems with the electrically operated tool shall be provided and shall incorporate a torque limiting device. The power tool operation shall always be through a separate torque-limiting device to protect the wire ropes from over stretching. It shall be mechancial with suitable load adjusting device. The torque limitor shall trip the load when it exceeds the adjusted limits. There shall be suitable provision for warning the operator once the load s tripped off. The torque limitor is a requirement as per the relevant standards in view of the overall safety of the system. Each mast shall have its own power tool motor.

(G) Aviation Obstruction Lights : Suitable Aviation Obstruction Lights of reliable design and reputed manufcturer shall be provided on top of each mast. (H) Earthing Terminals: 2Nos, earth terminal using 12mm diameter stainless steel bolts shall be provided at a convenient location on the base of the Mast, for lightening and electrical earthing of the mast. Each mast shall be earthed at two points using minimum 25x6 mmGI strip. Note : The quoted rate is deemed to include the cost of aviation obstruction light, Lightening arrestor spike, required suitable size of RCC foundation for the high mast pole and 4mm GI wire for earthing connection from LA spikes at top of the pole to the earthing point.

S&F Flood light fitting,1X150W LED, energy saving,environmental friendly,exclusive innovative die cast aluminium IP-66 flood light with high power 150 Watt LEDs as light source,suitable for highlighting architectural facade high mast pressure,die-cast,integral weather proof housing heat resistant toughened clear glass cover with reflector with all accessories made suitable for fixing on high mast pole,complete all as specified and directed. Make: Havells model No.JETA PRO PLUS Cat part No.LHFPCZBFP46J150 or equivalent model in Philips/Crompton/C&S as approved by GE.

S& F Decorative land scape lights10 W, model LIARA inverted type,pyramid tripod type,LED bollard lights,10 W,230 V,50 Hz,with soft 360 degree light distribution,with all accessories complete all as specified and directed. Make : Crompton model No. LIARA,cat part No.LBLSN-10-CDL or equivalent model in Havells/ /Philips/ C&S.

S& F Building security light fitting,high power,LED 70 W,230 V,50 Hz,IP-66 protection with die cast aluminium housing having separate top opening,separate drive compartment and impact resistance of IK-07 with 10 KV built in surge protection device with all accessories,complete all as specified and directed. Make : Havells cat part No.ENDURA PEARL PLUSS L 70 W LED 757 SASY TOPC or equivalent model in Crompton/Philips/C&S.

S& F Time lite distribution board Timelite-32 A,3 Pole,230 V,digital time switch for three phase rating with contactor fitted inside steel enclosure complete all as specified and directed. Make : Indo asian cat part No.TL032 DB0 or equivalent model in Havells/ C&S/L&T.

Excavation in trenches not exceeding 1.5 m wide and not exceeding 1.5 m in depth,for laying of under ground cables etc and getting out in soft/loose soil complete all as specified.

Excavation in trenches not exceeding 1.5 m wide and not exceeding 1.5 m in depth,for laying of under ground cables etc and getting out in hard/dense soil complete all as specified.

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

Removing excavated material to a distance not exc 50m and depositing where directed at a level n exc. 1.5 m above the starting point complete all as specified.

M & L for natural river sand as cushioning of cables, including spreading and punning down complete all as specified. Note : punned thickness shall be measured for payment purpose

Supply and laying of burnt clay bricks, sub class "B" of size 230x115x75 mm best locally available for cable protection in trenches, complete all as specified and directed.

Supply, laying and testing FRLS 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 4 core 16 sq mm including necessary cable lugs,glands,etc complete all as specified and directed.

Supply, laying and testing FRLS 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 6 core 2 sq mm including necessary cable lugs,glands,etc complete all as specified and directed.

M&L for sub main wiring with two runs of 1.50 sq. mm multistranded copper conductor cable FRLS grade 1100 volt and one run of 1.50 Sq.mm multistranded copper conductor cable FRLS grade 1100 volt drawn through and including PVC rigid conduit heavy grade 25 mm dia complete all as specified. Note: Three runs of 1.50 Sq.mm cable, and 01 run of PVC conduit will be measured as one unit.

M&L for sub main wiring with two runs of 2.50 sq. mm multistranded copper conductor cable FRLS grade 1100 volt and one run of 2.50 Sq.mm multistranded copper conductor cable FRLS grade 1100 volt drawn through and including PVC rigid conduit heavy grade 25 mm dia complete all as specified. Note: Three runs of 2.50 Sq.mm cable, and 01 run of PVC conduit will be measured as one unit.

S & F switch paino flush type single pole one way, 6 Amps, 230 Volts,50Hz complete all as specified.

S&F Ceiling rose surface bakelite 65x50mm 2/3 terminals, 230 volts,50Hz, complete all as specified.

S & F MCB DB,SPN, 4 way, double door type,240 Volts, 50 Hz, three phase, AC supply including 200 Amps rated bus bar vertical/horizontal,IP-43 protection with sheet metal enclosure flush on wall complete all as specified and directed.

S&F MCB SPN,6 to 40 Amps, B series,230 V,10 KA breaking capacity, complete all as specified.

S&F MCB SP,6 to 40 Amps, B series,230 V,10 KA breaking capacity,complete all as specified.

S&F Galvanised Iron pipe 40 mm bore (light grade) including fittings laid as cable protection including sealing both ends for cable pipe,complete all as specified.

S&F Galvanised Iron pipe 20 mm bore (light grade) including fittings laid as cable protection including sealing both ends for cable pipe,complete all as specified.

M&L PCC (1:3:6) type C-2 ( using 40mm graded stone aggreagate) as in foundation,filling mass concrete for poles including necessary form work complete all as specified.

M&L PCC (1:2:4) type B-1 ( using 20mm graded stone aggreagate) as in coping for poles including necessary form work complete all as specified.

M&L Earthing complete with galvanised steel earth plate electrode 600×600× 6mm thick, buried directly and preferably vertically in ground (earth pit not less than 2.25 metres deep below ground level) with top edge of the plate not less'than 1.5 metres below normal ground level, connected to galvanised iron strip of size 32x6mm (up to 7.5 m in length from earth plate ) by means of bolts, nuts, check nuts and washers of galvanised iron or steel all as shown in electrical plate No. 3 connected to earthing test point including earth work and excavtion in any type of soil, PCC 1:3:6 type C1 chamber and RCC 1:2:4 type B1 cover 40 mm thick, with 8mm dia steel deformed (TMT bars) reinforcement at 150mm c/c both ways, 20mm dia GI medium grade pipe for earth lead protection, 20 mm dia GI medium grade pipe for watering, water funnel, testing point etc complete all as specified and directed by Eng-in-charge and testing on completion.

KIRON ENGINEERING CORPORATION

M/s SS Engineering Enterprises

RATNA ENTERPRISES

CIVILEC ENGINEERING WORKS

M/s Chandu Lavanya Engineers Contrctors

R AND A ASSOCIATES ENGINEERS CONTRACTORS

P KOTESWARA RAO

M/s Saptagiri constructions