Copper Cable, 4 Sq. Mm, Single Core , Stranded Annealed Tin Coated E-Beam Irradiated Cr Oss Linked Polyolefin Insulated Cable Suitable For 1.8/3 Kv Grade As Per Rdso'S Spec. No. Elrs/Spec/Elc/0019, Rev '4' Of February 2018 Or Latest. [ Warranty Period: 30 Months After The Date Of Delivery ] ]