First Ten-Yearly Modification Study for Daya Bay Nuclear Power Plant

This paper analyzed the features for various operation phases for nuclear power plant,and provides the period and goals for long-term modifications and the necessity for 10 yearly modifications.The introduction of classification,contents of main items and implementation results of the first ten-yearly modi-fications for Daya Bay Nuclear Power Plant indicates the importance of periodical modifications to the im-provement of safety,economy and reliability of Daya Bay Nuclear Power Plant.