supply of 3x1.0 sq mm multi core cable , 3 x 1.0 sq.mm multicore screened, thin walled electron beam irradiated fle xible elastomeric cable with copper conductor suitable for rolling stock application generally conforming to edts-132, rev-c, amd-1, 2 & 3, data sheet-4, 600v grade.the colo ur of the outer sheath shall be black and colour of cores shall be white, brown & bla ck. note: 1)approved sources of multi core cables to specn.no. clw/es/0459 as per rdso approved v endors list shall only be considered. 2)cables shall be supplied in coils of 500 meters length and leftover quantity in multiples of 100 meters with a tolerance of+/- 5% on the length. [ warranty period: 30 months after the date of delivery ] ]