... grid,India, Hongkong,Iran,Nigeria, Australia,Cananda,Bri xlpe insulated power cable Jointly developed by China secience and technology university and our ... test should be carried out on the complete drum of cable. when the environmental temperature is 20±15°c,apply AC ... 3.5kv for 5 minutes.the insulation should not break drown during test. 19/33kv xlpe power cable