... Insulation&jacket materials are available for PVC, PE, XLPE, Rubber, silicon.3 Rated voltages are for 300V below, 300/300V, 300/500V, 45/750V, 600 ... /1000V, 3.6/6KV, 10KV, 26/36KV and 36KV above.4 Stable performance, PVC Insulated and Sheathed Flexible Cable