PROVISION OF LT UG CABLE AND ALLIED WORKS FOR INSTALLATION OF CT OPERATED THREE PHASE METERS AT VARIOUS LOCATIONS AT RAIWALA MIL STN UNDER AGE (I) RAIWALA

Supply and laying , fixing or passing through pipe, laid in trenches or fixed to pole/wall or fixed to LT panel board, insulated, armoured heavy duty electric cable with aluminium conductor, XLPE , 1100 volts grade, cross-sectional area of size 70 Sqmm sqmm 3.5 core with with cable lugs of suitable size all as specified and directed. by Engr-in-charge.

All as per item No. 08 here-in-before but 25 sqmm 4 core complete all as specified

Excavation in trenches in any type of soil and n.exc 1.5 m wide and n.exc 1.5 m in depth for ,laying under ground electric cable and GI tubing (where provided for protection of cables), stay and getting out, trimming the sides, forming bottom surface to required level in any type of soil complete all specified and directed.

Returning, filling in, any type of soil including spreading, leveling, watering and well ramming in layers n.exc 250mm thick, in any tupe of soil complete all as specified and directed.

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

M&L for sand cushioning for under ground cable with layer of fine river dry sand 80 mm thick before laying of cable and 150 mm thick after laying of cable in trenches complete all as specified and directed.Note:- Punned (consolidated ) thicness of sand will be measured and paid.

Material and labour for cable protection with sub class ‘B’ bricks old size, laid dry, flat over sand cushining of cable, perpendicular across the cable in trenches complete all as specified and as directed.

M&L for road cutting for laying cable and through GI Pipe of suitable size making good with PCC 1:3:6 type C-2 (using 40 mm graded stone aggregate) of 150mm X 100mm inrespect of width and thickness complete all as directed by Enger -in- charge.

Supply and fixing GI tubing light grade 50mm bore, light grade as in sleeving etc laid in trenches/pole post/under culvert/under load etc for cable protection complete all as specified and directed.

Earthing complete with galvanised steel earth plate eletrode 600 x 600 x 6.0 mm thick burried directly in ground (earth pit not less than 2.25 mtr deep below ground level) with top edge of earth plate not less than 1.5 meters below ground level connected by 32 x 6 mm GI strip as earth lead by means of brass nuts and bolt, thimbles, check nuts, washers including concrete chamber of PCC 1:3:6 type c-1 using 20 mm graded stone aggregate, with fair finish, internal surface of concrete chamber shall be given internal dia 300mm x 300mm, 15mm thick plaster in CM 1:4 funnel with wire mesh, RCC pit cover of 320 x 320 x 80 m size (1:2:4) Type B1 using 20 mm graded stone aggregate, adequate quantity of common salt, charcoal etc all as shown in electrical plate No 3 of MES SSR Part-I (2009) and specified including and provision of GI strip upto 7.5 mtr long with 40 mm dia light grade GI pipe protection and watering pipe of GI 20 mm bore, medium grade, including all excavation and earth work and connecting the earthing strip to an earthing test point/panel including testing on completion complete all as specified and directed by Engr-in-Charge. (i) RCC pit cover shall be precast of RCC (1:2:4) type B1, 80 mm thick reinforced with XPM weighting not less than 4 Kg/Sqm in lieu of CI cover. (ii) Cost of additional GI strip more than 7.5 meter will be measured and paid seperately under relevant item.