PROVN OF 01 X 200 KVA SERVO VOLTAGE STABLIZER AND CONNECTED ACCESSORIES AT ALONG MIL STN UNDER GE 872 EWS

Supply and fixing 3 phase servo voltage stabilizer of capacity 200 KVA (confirming to BIS 9815 Part - I, 1994) for automatic operation, rated frequency 50 Hz, naturally oil cooled, indoor type with protection IP31/IP32, unbalanced type, copper wound, metalic body duly powder coated with lifting hooks -02 Nos and digital display of volt/ amp meter etc and designed for input voltage variation between 340 V to 460 V with output voltage stabilized at 415 Volts with accuracy +/- 1 % and speed of correction 50 Volts per second, Relay free smooth and silent operation, having no distortion in wave form, Response time not to exceed 10 mille seconds, sensitivity (+/-) 1% and having efficiency more than 95 % complete all as specified.

Excavation in trenches in hard/dense soil and getting out complete n.exc 1.5m wide and n.exc 1.5m in depth for foundation etc all as specified and directed.

Returning, filling in (soil) including spreading, levelling, watering and well ramming in layers not exceeding 25 cm thick. complete all as specified & directed.

Removal of excavated material to a distance not exceeding 50 metre and depositing where directed at a level not exceeding 1.5m above the starting point complete all as specified & directed.

M & L for sand filling in trenches with clean dry sand unwashed including gently pruning around cables complete (05 cm thick before laying of cable and 18 cm after laying of cable) in trenches complete all as specified and directed by Engr-in-Charge Note: punned thickness shall be measured.

Supply & laying Sub-class ‘B’ Bricks of Size 230x113x75 mm, Kiln burnt, for Covering to UG Cable as Protection, laid Flat, Transversally Width Equal to the Length of the Cable, complete all as specified and as directed.

Suppy, Laying, jointing and testing and commissioning cross linked polyethylene (XLPE) insulated cable for working voltage of 1100 V, PVC sheathed, armoured, 3 core with reduced neutral conductor (3.5 core) nominal cross sectional area of main conductor 120 sqmm , stranded aluminium conductor , ISI marked as per IS 7098 ( Part-I) : 1998 inluding cable glands, lugs etc to suit the cable size and to be laid in trenches , fixed along pole, under floors, through GI pipe laid under floors/ roads, through concealed GI pipe along the wall etc complete all as specified and directed.

Supply & laying galvanized steel tubing "light grade" with GI fittings in trenches/ under roads/ along pole/ wall for cable protection of size 80mm bore dia all as specified & directed by Engr-in-Charge.

M&L Earthing with Galvanised Earth Plate Electrode 600x600x6.0mm thick burried directly in Ground (Earth Pit not less than 2.25 Metre below Ground Level) with Top edge of the Plate not less than 1.50 Metre below Ground Level, connected with and including Galvanised Earth Strip of size 32x6.0mm by means of Bolts, Nuts, Check nuts and Washers of GI or Steel and connected Earthing Testing Point/Bus-bar with GI 40mm bore (dia) Light grade Protection Pipe, Earth Plate surrounded by a packed thickness of Char Coal or Coke Dust mixed with Common Salt in alternate layers of not exc. 150mm thick, PCC Pit in Cement Concrete 1:3:6 (20mm graded stone aggregate) and Pre-cast RCC Cover Slab of size 350x350x50mm in Cement Concrete 1:2:4 (20mm graded stone aggregate), reinforced with 10mm dia TMT Bars @ 100mm Centre to Centre in both ways, GI Wire Mesh, PGI Funnel with GI Watering Pipe 20mm bore (dia) Medium grade including necessary Excavation in Soft/Loose Soil, Returning, Filling in and Removal of surplus Spoil upto a distance of 50.00 Metre and all as shown in Electrical Plate No. 3 of MES Schedule Part-I and Testing on Completion complete all as per specified and as directed.