Home / Standards / GB/T 21222-2007 GB/T 21222-2007 Active Methods for the determination of the lightning impulse breakdown voltage of insulating liquids 绝缘液体 雷电冲击击穿电压测定方法 Standard Type GBT ICS 29.035.99 CCS K15 Status 现行 Issue Date 2007-12-03 Implementation 2008-05-20 Responsible Dept 中国电器工业协会 Drafting Unit N/A