Home / Standards / GB/T 21975-2008 GB/T 21975-2008 Active Method of test for reliability of three-phase induction motors for crane and metallurgical application 起重及冶金用三相异步电动机可靠性试验方法 Standard Type GBT ICS 29.160.30 CCS K26 Status 现行 Issue Date 2008-06-13 Implementation 2009-03-01 Responsible Dept 中国电器工业协会 Drafting Unit 中国电器工业协会