electrical work as augmentation of substation capacity at lalgola 33/11 kv s/stn under jiaganj division in the district of murshidabad . , erection of h/l 4-pole structure with 8mtr . long p . c . c . pole for isolator /bus support ( drawing no . re/ss/34 ) including excavation of earth fixing of necessary slabs concrete foundation fittings , fixing of necessary steel member after fabrication and as per direction of the site-in-charge . ( materials supplied by wbsedcl ) , removal of existing dp structure on 8 mtr pcc pole from site for making suitable space within switchyard , erection of l/l 4-pole structure with 8mtr . long p . c . c . pole for isolator support ( re/ss/41 ) and end bus support ( drawing no . re/ss/38 ) including excavation of earth fixing of necessary slabs concrete foundation fittings , fixing of necessary steel member after fabrication as per direction of the site-in-charge . ( materials supplied by wbsedcl ) , erection of l/l double pole structure with 8mtr . long p . c . c . pole for end bus support including excavation of earth fixing of necessary slabs concrete foundation fittings , fixing of necessary steel member after fabrication as per direction of the site-in-charge . ( materials supplied by wbsedcl ) , fabrication and fixing of 33kv la structure , fuse unit structure & pin support , cable support structure on existing 4pole / dp ( materials supplied by wbsedcl ) , erection of 11 kv / l . t . cable support structure by m . s angle / m . s . channel with fitting fixing complete and as per direction of the site-in-charge . ( materials supplied by wbsedcl ) , erection of neutral earthning support by ms channel i . r . o . 10mva ptr/station service transformer as per direction of the site-in-charge . ( materials supplied by the wbsedcl ) , supply & erection of fabricated g . i . 33 kv c . t . p . t . structure ( drawing no . pln ( d ) /ss/57 ) on existing plinth , existing c . t / p . t structure dismantling and re-erection the same on new plinth as per direction of the site in charge . , supply and fixing of c . t . p . t . junction box on existing structure with necessary disconnect linck switch , base channel etc . . as per direction of site-in-charge . , supply & fixing of double compression type gland complete with brass , rubber rings , for dust & moisture proof entry of pvc /a cable for 4 /8/12/16core 2 . 5 sq . mm pvc /a cable ( supplied by the contractor ) as per direction of site-in-charge . , supply and fixing of 2 . 5sq . mm . ferule , copper lug , cable ti as required and as per direction of the site-in-charge . ( supplied by the contractor ) , supply and fixing of 40mm dia g . i . pipe ( up to 5ft long ) for maintain of proper height of isolator pipe . , fixing of 42kv post insulator ( materials supplied by wbsedcl ) , supply and fixing of 40mm dia alu . bus pipe , supply and fixing of different type of clamp connector bolted type switable for ascr 200 sqmm panther conductor and as per direction of the site-in-charge . ( supplied by the contractor ) , supply and fixing of la copper stick on the top of h-pole , fixing of 33 kv c . r . type isolator with proper adjustment ( without earth switch ) ( materials supplied by wbsedcl ) , erection of 33kv c . t . as per direction of the site in-charge . ( materials supplied by wbsedcl ) , erection of 33kv p . t . as per direction of the site in-charge . ( materials supplied by wbsedcl ) , dismentle of 33/0 . 433kv 100kva station service transformer on existing plinth & re-erection the same on new plinth , loading unloading transportation of 33kv vcb - 1nos , 33kv crp - 2nos from divisional store to work site , installation of 33kv vcb structure and vcb on existing plinth ( materials supplied by wbsedcl ) , installation of 42 kv l . a . on existing structure . ( materials supplied by wbsedcl ) , installation of 33 kv control & relay panel ( ptr control 2nos in the control room floor , including grouting of foundation bolt ( bolt to be supplied by the contractor ) . as per direction of site-in-charge . ( materials supplied by wbsedcl ) , installation of 33kv rtcc panel in the control room floor , including grouting of foundation bolt ( bolt to be supplied by the contractor ) as pre direction of the site-in-charge . ( materials supplied by wbsedcl ) , fixing of a . c . s . r . 200 sq . mm panther conductor with dropper jumper complete . single conductor . ( materials supplied by wbsedcl ) , dismantling of existing sheilding wire from the top of the rail pole , installation of earth electrode by 40mm dia 3mtr . long perforated g . i . pipe as a earth electrode including making of borehole and lowering the pipe with filling of borehole by betonite powder and excavated earth with fixing of 150 x 150 x 6mm plate on top of the pipe with electric arc . welding complete and as per direction of the site-in-charge . ( require of betonite powder per bore hole approx . weight 44kg ) ( materials supplied by the contractor ) , construction of earth pit with 600 x 600 x 600mm wide x 75mm brick wall & plastered outer & inner side including neat cement complete and as per direction of site-in-charge . ( materials supplied by the contractor ) , providing enclosure on the top of the earth pit by rcc cover slab/ c . i . hinged inspection cover and as per direction of site-in-charge . ( materials supplied by the contractor ) , laying of earth mat by 65 x 6mm / 50 x 6mm flat including match alignment cold bending electric arc . welding with excavation of earth & refilling the same after laying of earth mat . as per direction of site-in-charge . ( materials supplied by the wbsedcl ) , fixing of sub-station earthing strips i . e . riser by 65 x 6mm / 50 x 6mm flat including earthing of newly erected sub-stn . structure & equipments including electric arc . welding lap jointing complete and painting by anti -corrosive black paint as per direction of site-in-charge . as per direction of site-in-charge . ( materials supplied by the wbsedcl ) , painting of all welded joint portion by anti -corrosive black paint . as per direction of site-in-charge . ( materials supplied by the contractor ) , existing disc support channel of 75*40*6 mm and replace by 100*50*6 mm with making and erection complete as per instruction of site in charge ( material supply by wbsedcl ) , existing dog conductor dismantling and return to store , laying of copper control cable 1 . 1 kv armoured , 2 . 5 sq . mm 4/12 of different length on existing trench , as per direction of site-in-charge . ( cable supplied by wbsedcl )