China 'GB/T 26218.4-2019
' standard english version:
NATIONAL STANDARD OF THE PEOPLE'S REPUBLIC OF CHINA
GB/T 26218.4-2019
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
Issued Date:2019
Implemented Date:
Issued by:
The Standardization Administration of the People's Republic of China