Abstract:
In order to ensure the integrity and effectiveness of nuclear power plant extended operation safety assessment, through the analysis of the characteristics of extended operation, the key issues that need to be paid attention to in safety assessment are analyzed, and an effective method for determining the scope and object screening is established. Through this method, Qinshan Nuclear Power Plant can identify the scope and object of extended operation safety assessment, so that the follow-up assessment can be carried out effectively. Practice has proved that the results determined according to this can meet the screening requirements of nuclear safety supervision for extended operation safety assessment objects. It shows that the determination principle of the scope and object of extended operation safety assessment of Qinshan Nuclear Power Plant is reasonable, and its method and process can effectively guide the extended operation practice of subsequent nuclear power plants.