Home / Standards / GB 17621-1998 GB 17621-1998 Active Specification of reservoir operation for large and medium-scale hydropower stations 大中型水电站水库调度规范 Standard Type GB ICS 27.140 CCS P59 Status 现行 Issue Date 1998-12-17 Implementation 1999-04-01 Responsible Dept 国家能源局 Drafting Unit N/A