GB/T 20840.15-2022互感器第15部分:直流电压互感器的补充技术要求国家标准
英文:Instrument transformers—Part 15:Additional requirements for voltage transformers for DC applications GB/T 20840.15-20...
英文:Instrument transformers—Part 15:Additional requirements for voltage transformers for DC applications GB/T 20840.15-20...