Home / Standards / GB/T 2900.20-1994 GB/T 2900.20-1994 Abolished Electrotechnical terminology--High-voltage switchgear 电工术语 高压开关设备 Standard Type GBT ICS N/A CCS K04 Status Abolished Issue Date 1994-04-12 Implementation 1994-12-01 Centralized Committee 中国电器工业协会 Issuing Authority 中国电器工业协会