Methodology for the Control of Equipment Ageing in Nuclear Power Plants

Abstract

This paper presents a methodology for the control of equipment ageing as it applies to CANDU 600 nuclear power plants. The methodology that has been developed is based mainly on the approach proposed in Nuclear Plant Ageing Research (NPAR), a program implemented by the Nuclear Regulatory Commission (NRC). It includes twelve steps covering the selection of the equipment, the understanding and the management of ageing. The methodology complies with the new Canadian nuclear regulations as well as recommendations made by world wide nuclear industry. It has been validated through application to three types of mechanical equipment, with results that are deemed significant.