Home / Standards / GB/T 21421.2-2014 GB/T 21421.2-2014 Active Composite string insulator units for overhead lines with a nominal voltage greater than 1 000 V― Part 2：Dimensions and characteristics 标称电压高于1 000V 的架空线路用复合绝缘子串元件 第2部分：尺寸与特性 Standard Type GBT ICS 29.080.10 CCS K48 Status 现行 Issue Date 2014-07-24 Implementation 2015-01-22 Responsible Dept 中国电器工业协会 Drafting Unit N/A