SHIFTING, REPAIRING AND INSTALLATION OF HIGH MAST AT MARSHALLING YARD AREA AT O. F. CHANDA

Amount

Cat (A) -Items to be supply and fixing

Excavation in trenches for cable of street light & High Mast n. exc. 0.4 meter wide and n. exc. 0.6 meter depth, in soft/loose soil and getting out etc. All as specified & directed by E-I-C.

M&L for provision of sand cushion of 05 cm thick in two layers for LT cable etc. All as per the direction of E-I-C.

Supplying and laying reinforced precast concrete cable cover class L V , Type 1 flat size 250mm X150mm X40mm.All as per the direction of E-I–C

Returning, filling-in including spreading, levelling and well ramming in layers of excavated soft loose soil in trenches etc., as per the direction of E-I–C

Supplying and Laying of GI steel tube medium grade of 50 mm bore for protection of cable under road crossing etc. All as per the direction of E-I–C

M & L cement concrete in foundation type B2 1:2:4 using 40 mm graded aggregate for filling & mass concrete compaction, curing etc. and hard standing on cable between pole to pole and near control panel of high mast as per the direction of E-I-C

Supply , lay , test and connection of 3½ core , 35sq. mm PVC insulated , armoured heavy duty electric cable with aluminium conductor , 1100 volt grade , for connection from t main Panel to High Mast Control Panel Make- Unistar/Havells/Polycab/RPG/KEI NOTE-Inspection will be carried out at manufcturer premises by O.F. Chanda representative.

S & F, Earthing complete with, Galvanized steel earth plate electrode 600x600x6mm thick ,buried directly in ground (earth pit not less than 2.25meter deep below ground level) with top edge of the plate not less than 1.5meter below normal ground level, connected to galvanised iron 25X4 mm as earthing lead by means of bolts, nuts, check nuts &washers of galvanized iron or steel all as shown in electrical plate No.5 connected to earth test point ( length 9 meter).all as specified or indicated including testing on completion. Each & every joint should connect lead sheet (size 32x80x3/2 mm) between joint. If the desired earth resistance is not obtained the earthing will be redone at no extra cost. All as per the direction of EIC. S & F of G I steel tube of medium grade of 20 mm bore1.75M length with funnel & mesh for the watering purpose etc all as per the direction of EIC

Supply & Fixing of Cast Iron Cable route marker of Size 100mm diameter duly marked as "LT CABLE" fixed one meter long 1" MS angle etc as per the direction of Engineer In - Charge,

Removing Shifting and Reinstallation and commissioning of 20 m High Mast lighting System with all accessaries with the help of suitable equipments, fixing of of LED fitting ( LED fitting provided by O.F. Chanda ) with weather proof wiring --12 no, Supply and fixing of Control panel outdoor type ( With provision of Reverse forward starter suitable for motor and Timer, Contactor,4 Pole control MCB 63 Amp on rail mounted) with suitable size shed provision, Supply and Connection with all cable and wire required at site, Supply and fixing of Motor suitable with existing gear box with steel rope suitable for high mast, servicing of gearbox with material, all work as per the direction of Engineer In - Charge. Note:- While Shifting and installation firm should take all safety measures of his workmen as well as safety of OHE ( Overhead High Voltage line & Equipment).

Design and casting of suitable foundation for 20Mtr. High Mast with M-20 concrete for the High Mast Considering the safe soil bearing capacity at site as 10 T/sq. mtr at 2 mtr depth and 1 feet up form ground level. This also included excavation, Civil materials and foundation bolts with anchor plate, as per the direction of Engineer In - Charge.

Supply, installation, commissioning and testing of double door out door type electrical panel size L- 2.5 feet X W- 1.5 feet X H – 3.5 feet made up of 2 mm thick M. S. sheet powder coted for 440 V, 3 phase, 50 Hz, AC supply system, point for earth connection, water tight with hinged door and locking arrangement at the front having provision of cable entry from bottom side mounted on the concrete foundation. the panel should consist of the following – 1) MCCB unit with thermal contact relay main switch 315 A with Make- L&T/Siemens or equivalent - 01 No. 2) MCCB unit with thermal contact relay main switch 100 A Make- L&T/Siemens or equivalent - 04 No. .. 3) AL. bus bar 400 A. with D rating factor should not be more than 20% .4) Indicating lamp 5)3 phase 4 wire digital multifuctional Energy Meter with LCD display and 3 Nos.400/50/5 amp CT's Make- HPL, EMFIS,LT,SIEMENS or equivalen Etc. complete wired for power and control circuit. Note: - scope of work includes all necessary civil work for electrical panel installation etc. All as specified & directed by E-I-C.

Joy Construction

HARIOM ENTERPRISES

SAHA ENTERPRISES