Home / Standards / GB/T 311.1-2012 GB/T 311.1-2012 Active Insulation co-ordination - Part 1：Definitions, principles and rules 绝缘配合 第1部分：定义、原则和规则 Standard Type GBT ICS 29.020 CCS K40 Status 现行 Issue Date 2012-06-29 Implementation 2013-05-01 Responsible Dept 中国电器工业协会 Drafting Unit N/A