Home / Standards / GB/T 4772.1-1999 GB/T 4772.1-1999 Abolished Dimensions and output series for rotating electrical machines--Part 1:Frame numbers 56 to 400 and flange numbers 55 to 1080 旋转电机尺寸和输出功率等级 第1部分:机座号56～400和凸缘号55～1080 Standard Type GBT ICS 29.160.01 CCS K20 Status 废止 Issue Date 1999-02-26 Implementation 1999-09-01 Responsible Dept 中国电器工业协会 Drafting Unit N/A