Home / Standards / GB/T 21226-2007 GB/T 21226-2007 Active Semiconductor convertors - Identification code for convertor connections 半导体变流器 变流联结的标识代号 Standard Type GBT ICS 29.200 CCS K46 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