Home / Standards / DL/T 391-2010 DL/T 391-2010 Abolished 12kV户外高压真空断路器检修工艺规程 Standard Type DL ICS N/A CCS N/A Status Abolished Issue Date 2011-01-09 Implementation 2011-05-01 Centralized Committee 国家能源局 Issuing Authority 国家能源局