Withstand voltage test method of cross-linked polyethylene insulated power cable

摘要

PURPOSE:To easily form a cable head for a withstand voltage test and to realize the withstand voltage test of the cable using a few of auxiliary material by exposing the prescribed length of an external half conductive layer and a crosslinked polyethylene insulation layer by peeling the termination of a cable in stages. CONSTITUTION:At the time of performing the withstand voltage test of the crosslinked polyethylene insulation power cable 1 of 33kV class, the prescribed length of the external half conductive layer 4 and the crosslinked polyethylene insulation layer 5 are exposed from a cable sheilding layer 3 side by peeling the termination of the cable in stages. Since the prescribed length of both layers 4 and 5 are peeled in stages, insulation proof stress is heightened, and no auxiliary material for the formation of an insulation reinforcing layer and a stress cone before the withstand voltage test can be required, thereby, the information of the cable head can be formed easily.