supply of pvc insulated underground,armoured,unscreened railway signalling cable(heavy duty) with high conductivity copper conductor of size: 6 core x 1.5 sq mm as per specification no.irs: s-63/2014(rev.4.0)pvc insulated underground,armoured,unscreened railway signalling cable(heavy duty) with high conductivity copper conductor of size: 6 core x 1.5 sq mm as per specification no.irs: s-63/2014(rev.4.0),pvc insulated underground,armoured,unscreened railway signalling cabl e(heavy duty) with high conductivity copper conductor of size: 6 core x 1.5 sq mm as pe r specification no.irs: s-63/2014(rev.4.0) [ warranty period: 30 months after the date of deliver y ] [quantity tolerance (+/-): 2 %age , item category : normal , total po value variation permitt ed: max 8 lacs ] ]