Home / Standards / GB/T 22390.4-2008 GB/T 22390.4-2008 Active Control and protection equipment of high-voltage direct current (HVDC) transmission system - Part 4: DC protection equipment 高压直流输电系统控制与保护设备 第4部分：直流系统保护设备 Standard Type GBT ICS 29.240.01 CCS K45 Status 现行 Issue Date 2008-09-24 Implementation 2009-08-01 Responsible Dept 中国电器工业协会 Drafting Unit N/A