Home / Standards / GB/T 20840.14-2022 GB/T 20840.14-2022 Active Instrument transformers—Part 14:Additional requirements for current transformers for DC applications 互感器 第14部分:直流电流互感器的补充技术要求 Standard Type GBT ICS 29.180 CCS K41 Status 现行 Issue Date 2022-10-12 Implementation 2023-05-01 Responsible Dept 中国电器工业协会 Drafting Unit N/A