Home / Standards / GB/T 12944-2011 GB/T 12944-2011 Active High-voltage ceramic wall bushings 高压穿墙瓷套管 Standard Type GBT ICS 29.080.10 CCS K48 Status 现行 Issue Date 2011-07-29 Implementation 2011-12-01 Responsible Dept 中国电器工业协会 Drafting Unit 中国电器工业协会