Detailed Product Description GB 1409-1980(10KV,35KV overhead insulated cable)Characteristics:1. Rated voltage:10kv,35kv2.Min, laying temperature:-20oC3. ... of cable when short ciucuit(5s)HDPE(insulation)150oC,XLPE(insulation)250oC4.The Max, Long term working temperature o conductor:HDPE(insulation ... +d)+ 5%, TR structure is 20 Dmm.B) Muti cores cable:15(D+d)+5%mm.