Home / Standards / GB/T 997-2022 GB/T 997-2022 Active Classification of types of construction，mounting arrangements and terminal box position (IM Code) for rotating electrical machines 旋转电机结构型式、安装型式及接线盒位置的分类（IM代码） Standard Type GBT ICS 29.160.01 CCS K20 Status 现行 Issue Date 2022-10-14 Implementation 2023-05-01 Responsible Dept 中国电器工业协会 Drafting Unit N/A