EQUIPMENT AGING MANAGEMENT AND OPERATIONAL LIFETIME EXTENSION AT THE PAKS NUCLEAR POWER PLANT

摘要

The design life of the NPP PAKS VVER-440/213 Units is 30 years. The Paks Nuclear Power Plant strategy is to extend the operational lifetime of the plant and renew the operational licence for 20 years over the designed and licensed lifetime. The feasibility of plant lifetime extension has been investigated. It has been found that a 20 years extension of operation is feasible from both technical and business point of view. The Licence Renewal regulation based mainly on USNRC approach taking into account the special features of the VVER-440/213 Units and the Periodic Safety Review (PSR) (every 10 years) requirements based on IAEA methods. At Paks NPP the systematic ageing management activities were started ten years ago. Basic results of plant assessment and aging management programs of the main components are discussed in the paper. Summary of the licence renewal process and details of the main activities are reported.