Guide for the evaluation of the remaining life of impregnated paper insulated transmission cable systems 浸渍纸绝缘传输电缆系统的剩余使用寿命的评价指南
2.
Power cables - part 621 : medium voltage impregnated paper insulated distribution cables ; german version hd 621 s1 : 1996 parts 1 , 2 , 3c and 4c 电力电缆.第621部分:中电压纸浸渍绝缘配电电缆