Home / Standards / GB/T 23755-2009 GB/T 23755-2009 Abolished Three-phase site-combined power transformers 三相组合式电力变压器 Standard Type GBT ICS 29.180 CCS K41 Status 废止 Issue Date 2009-05-06 Implementation 2009-11-01 Responsible Dept 中国电器工业协会 Drafting Unit 中国电器工业协会