This standard is prepared according to the Document 1093 （2006） Notice on Publishing Standards issued by NationalDevelopment and Reform Commission.
　　This standard is proposed by China Electricity Council.
　　This standard is under the jurisdiction of the Standardization Technical Committee for Hydropower
　　Station Automation of Power Industry（TC-HSA）.
　　This standard is drafted by State Grid Electric Power Research Institute and China Institute of Water Resources and Hydropower Research.
　　The main drafters： Tang Yuming， Cao nianhong， Jiang Haishen， Yao Feng， Huang Chunlei， Sun Zengyi and Wang Yizhong.
　　This standard is translated by State Grid Electric Power Research Institute and China Three Gorges Corporation.
　　Translated and reviewed by： Wang Jianping， Qie Chunsheng， Cao Nianhong， Yao Feng， Wang Mingye，
　　Liu Zhiwu， Xie Xiaoyan， Tang Zhengyang， Pan Meiting， Hu Shaoying， Hua Xiaojun.
　　Any proposal or recommendation for this standard can be sent to Standardization Management Center of
　　the China Electricity Council （No.l， Lane 2， Baiguang Road， Beijing， 100761）.