Home / Standards / GB 7327-1987 GB 7327-1987 Abolished Silicon carbide surge arresters for A.C.systems 交流系统用碳化硅阀式避雷器 Standard Type GB ICS 13.260 CCS K49 Status 废止 Issue Date 1987-03-02 Implementation 1987-10-01 Responsible Dept 中国电器工业协会 Drafting Unit N/A