SESSION 3: BACKFITTING, UPGRADING AND MODERNIZATION OF NUCLEAR POWER PLANTS

摘要

Nuclear power plant (NPP) operators and regulators seek to ensure, throughout NPP service life, that plant safety and reliability levels are acceptable in comparison with current standards. Safety and performance reviews (e.g. periodic safety reviews, ongoing safety assessments, peer reviews and self-assessments) are used to identify any shortcomings, to determine practical improvements and to plan a programme of implementation.rnCorrective actions of an engineering nature usually take the form of NPP back-fitting, upgrading and modernization programmes or activities. Both qualitative and quantitative approaches are used in the selection and prioritization of corrective actions or safety improvements.