... , 4KV, 7KV 3)temperature range: minus 25 degree ~ 130 centi degree PVC fiberglass sleeving is fiberglass sleeving coated with PVC resin, with very ... .5mm---40mmBreakdown voltage: 1.5KV, 2.5KV, 4KV, 7KVtemperature range: -25 °C ~ 130°C; Insulation Sleeving Coated PVC/Insulation Sleeves PVC Electrical Insulation Tape