高耐圧ケーブルの耐電圧評価方法、高耐圧ケーブル、及び絶縁型雷保護システム

Japanese Patent JP6842008

B2

PROBLEM TO BE SOLVED: To provide a withstand voltage evaluation method of high breakdown voltage cable capable of evaluating the withstand voltage of a high breakdown voltage cable simply and accurately.SOLUTION: A lightning overvoltage Vcs applied to the lightning-receiving part of a high breakdown voltage cable for lightning stroke is calculated by following formulae (1) and (2), and the withstand voltage of the high breakdown voltage cable, where the cable conductor and the shield conductor are grounded commonly, is evaluated. When 2D/v0