Research and Application of Technical Route for Operation License Extension in Qinshan Nuclear Power Plant

By investigating and studying the main life extension technology routes of nuclear power plants in the world, the technical requirements suitable for life extension of nuclear power plants in China are formulated, and the main contents of safety assessment are determined. Using this technical route, the scope screening, object screening, aging assessment, supplement of final safety analysis report, environmental impact assessment and engineering transformation of safety assessment have been carried out in Qinshan NPP. The practical application shows that this technical route is feasible and meets China’s nuclear safety regulatory requirements. The Operation License Extension (OLE) Project of Qinshan NPP finally passed the review of the regulatory authority and obtained the extended operation license.