Home / Standards / DL/T 490-2011 DL/T 490-2011 Abolished 发电机励磁系统及装置安装、验收规程 Standard Type DL ICS N/A CCS N/A Status Abolished Issue Date 2011-07-08 Implementation 2011-11-01 Centralized Committee 国家能源局 Issuing Authority 国家能源局