Development of Maintenance System for Supporting Structures and Facilities in NPP

Nuclear Power Plant(NPP) consists of structures, systems and components with varying functions. In order to keep safety and cost-benefit available, it requires an efficient control system to service life. In case of the NPP which is now working, it should be noted that the periodic integrity assessment of safety-related structures including containment building have been performed. In addition, the establishment of maintenance D/B can be successfully accomplished through enhancement of SLMS(Structural Life Management System) by the integrated control system. Non-safety-related and outside power block structures play an important role to increase the function of the system, but have not any maintenance system available. This may cause both decrease in safety and increase in cost with damage of the structures. Thus, this study aimed to develop an advanced management system to solve reasonably above problems