Home / Standards / GB/T 20114-2019 GB/T 20114-2019 Active Specific test methods for d.c. machines on conventional and rectifier-fed supplies 普通电源或整流电源供电直流电机的特殊试验方法 Standard Type GBT ICS 29.160.30 CCS K23 Status 现行 Issue Date 2019-06-04 Implementation 2020-01-01 Responsible Dept 中国电器工业协会 Drafting Unit N/A