Home / Standards / GB/T 22389-2023 GB/T 22389-2023 Active Metal-oxide surge arresters without gaps for HVDC converter stations 高压直流换流站无间隙金属氧化物避雷器 Standard Type GBT ICS 29.080.99 CCS K49 Status 现行 Issue Date 2023-12-28 Implementation 2024-04-01 Responsible Dept 中国电器工业协会 Drafting Unit N/A