Development Of PSA Reliability Database Management System

The development of Nuclear Power Plant Software Database System has a significant meaning for improving nuclear power plant's security during its running. The shortage of reliability data is one of major difficulties that PSA (Probabilistic Safety Assessment) faces. PSA is on the basis of integrate reliability data.By making use of the popular relational database design method, Nuclear power plant PSA software database system is designed and developed, based on the analysis of its requirement. It also can supply convenient and sufficient data for PSA. It includes four sub-databases and three program module and two design features. The two features are a suit of users management system and an intelligent coding rule management module including users definable ability. Nuclear power plant PSA software database system has been debugged and tested successfully. Also it has been already applied as a database module of PSA analysis software.