Home / Standards / GB/T 20639-2006 GB/T 20639-2006 Active Artificial pollution testing of non-linear resistor type gapped arresters 有间隙阀式避雷器人工污秽试验 Standard Type GBT ICS 29.080.99 CCS K49 Status 现行 Issue Date 2006-11-08 Implementation 2007-04-01 Responsible Dept 中国电器工业协会 Drafting Unit 中国电器工业协会