Home / Standards / GB/T 25841-2017 GB/T 25841-2017 Active Guide of protection relaying for 1000kV power system 1000kV电力系统继电保护技术导则 Standard Type GBT ICS 29.240 CCS K45 Status 现行 Issue Date 2017-07-31 Implementation 2018-02-01 Responsible Dept 中国电力企业联合会 Drafting Unit N/A