Home / Standards / DL/T 664-1999 DL/T 664-1999 Abolished 带电设备红外诊断技术应用导则 Standard Type DL ICS N/A CCS N/A Status Abolished Issue Date 1999-08-02 Implementation 1999-10-01 Centralized Committee 电力工业部 Issuing Authority 电力工业部