supply of single core flexible pvc insulated and sheathed unarmoured multistrand annealed copper cable suitable for 25 kv ac discharge rod as per is-1554 ( pt-1 ) 1988 & is: 2071 ( pt-i&iii ) 1976 with amendments upto date, size-248 / 0.45mm with heat resistive pvc insulation, voltage grade -650 / 1100v. conductor shape should be circular stranded, insulation should be type-c, outer sheath should be type st1, colour of core- red, colour of outer sheath black, nominal thickness of insulation 1.40mm, nominal thickness of outer sheath 1.80 mm, test of cable according to is-1554 ( pt-1 ) 1988 & is:2017 ( pt-i &iii ) 1976 with amendments upto date, hr 85 marked on cables outer sheath for heat resisting pvc insulation. [ warranty period: 30 months after the date of delivery ]