construction of 1 no . 33kv feeder bay and 1 no . 33kv bus coupler bay at 132 kv ss borgaon under testing dn . chhindwara , erection of structures including shifting within sub-station premises , fixing and alignment of templates for grouted / bolted type structures foundations , tightenning of nuts , bolts , washers etc and including alignment and levelling of structures . , single zebra acsr conductor , stringing of overhead shield wire with 7 / 3 . 66mm standard galvanised steel complete with fixing of strain clamps at the structures . , shifting of 33kv circuit breakers ( 3 phase ) within sub-station premises and placment of c . b . on structure . complete assebly of c . b including erection of control cabinet and machanism box . erection of all accessories for the equipment , shifting upto civil foundation and placement of complete 33 kv isolator without earth switch ( 3phase ) in all three phase of isolator structure errction / mounting of mechanism box , interconnection pippnig alignment of contacts and all associated activities to make the installtion complete including checking of successful technical and electrical operation . , shifting upto civil foundation and placement of complete 33 kv isolator with earth switch ( 3phase ) in all three phase of isolator structure errction / mounting of mechanism box , interconnection pippnig alignment of contacts and all associated activities to make the installtion complete including checking of successful technical and electrical operation . , shifting of 33kv current transformer ( 400-200 / 1-1 amp ) upto civil foundation and placement on stucture and fixing of junction box , including all accessories , making all jumpers etc . , shifting of 33kv current transformer ( 1200 / 1-1-1-1 amp ) upto civil foundation and placement on stucture and fixing of junction box , including all accessories , making all jumpers etc . , shifting up to control room ( including storage if required ) & placment complet with all relays and accesories . the placment of control & realy panel ( 3 feeder circuit ) to be done on ms channel frame and ms channel frame will be suitably grouted in conrole room as per drawing . proper alignment of c&r panel to be done . the earthing of c&r panel to be done . , shifting of 33kv surge lighting arrester and placement on stucture and fixing of all accessories , making all connections , checking and installation of insulator base and surge counters , making all jumpers etc . , erection of 33kv p . i . and their connections , laying of copper cables 4core x 2 . 5 sq . mm ( armoured / unarmoured ) on racks / angles support over head racks , conduits including dressing of cables with accessories , laying of copper cables 8core x 2 . 5 sq . mm ( armoured / unarmoured ) on racks / angles support over head racks , conduits including dressing of cables with accessories , laying of copper cables 12core x 2 . 5 sq . mm ( armoured / unarmoured ) on racks / angles support over head racks , conduits including dressing of cables with accessories , providing holes 2core x 2 . 5 sq . mm for cable entry , fxing of glands , dressing of cable leads , fixing of tags , providing holes 4core x 2 . 5 sq . mm for cable entry , fxing of glands , dressing of cable leads , fixing of tags , providing holes 8core x 2 . 5 sq . mm for cable entry , fxing of glands , dressing of cable leads , fixing of tags , providing holes 12core x 2 . 5 sq . mm for cable entry , fxing of glands , dressing of cable leads , fixing of tags , earthing installation 25 mm dia x 3000mm long m . s . rod earth electrodes installation directly driven / drilled ( 40 to 50 mm dia ) into earth including excavation ( irrespective of type of soil encountered ) , backfilling with bentonite soil ( to be arranged by contractor ) welding to earth conductor etc . , providing of m . s . flat 65 x 8 mm risers and making of earth mat ( duly buried at a depth of 0 . 5 meter ) including backfilling with black cotton soil ( soil to be arranged by the contractor ) welding etc . and bolting of riser to the structures and equipments , providing of m . s . flat 50 x 6 mm risers and making of earth mat ( duly buried at a depth of 0 . 5 meter ) including backfilling with black cotton soil ( soil to be arranged by the contractor ) welding etc . and bolting of riser to the structures and equipments , preparation of earthing pits ( 1 . 5 x 1 . 5 x 3 meter ) as per approved drawing which includes excavation ( irrespective of the soil encountered ) , embedding of 4 nos gi pipes of size 40 mm dia 3 meter long , backfilling with b . c . soil ( soil to be arranged by contractor ) free from boulders and harmful mixture . these gi pipes are to be welded with m . s . flats by making mesh frame and cutting of pipes as also making holes in the pipe for water seepage . the earth pit is to be connected with earth mesh by m . s . flat .