Home / Standards / GB/T 26218.4-2019 GB/T 26218.4-2019 Active Selection and dimensioning of high-voltage insulators intended for use in polluted conditions—Part 4: Insulators for d.c. systems 污秽条件下使用的高压绝缘子的选择和尺寸确定 第4部分:直流系统用绝缘子 Standard Type GBT ICS 29.080.10 CCS K48 Status 现行 Issue Date 2019-12-10 Implementation 2020-07-01 Responsible Dept 中国电器工业协会 Drafting Unit N/A