Plant Life Management of EDF PWR Nuclear Fleet and EPR Flamanville 3 Design: Safety and Pressure Vessels Requirements

Abstract

Plant life management (PLM) of the 58 EDF nuclear plants takes into account continuous safety improvement, high level operating and maintenance performances goals, ageing / obsolescence management, skills management. Safety approach is described through 3rd ten years safety reassessment of 34 three loops reactors (from 2009). Ageing process management principles are described in particular in relation with an anticipation approach in the field of inservice inspection, routine or heavy (repair, replacement) maintenance : pressure vessels requirements, concerning first, European and French regulation, and the EDF ones are presented. Design of European Pressurised Reactor (EPR) FLAMANVILLE 3 takes into account safety and PVP requirements which are presented, in particular break preclusion approach for the main primary loops and overpressure protection.