Home / Standards / GB/T 22390.5-2026 GB/T 22390.5-2026 Upcoming Control and protection equipment of high-voltage direct current (HVDC) transmission system—Part 5: DC line fault location device 高压直流输电系统控制与保护设备 第5部分:直流线路故障定位装置 Standard Type GBT ICS 29.240.01 CCS K 45 Status 即将实施 Issue Date 2026-01-28 Implementation 2026-08-01 Responsible Dept 中国电器工业协会 Drafting Unit N/A