Application of PSA Technology in Safe Operation of Nuclear Power Plant

Probabilistic safety analysis (PSA) technology has become the mainstream analysis method in the world to support the daily risk management and safety decision-making in nuclear power plants. The technical specifications of a nuclear power plant in China require that the charging pump and the low-pressure safety injection pump available under the condition of cold shutdown need to be arranged in different series. In the process of switching the middle system technical specifications, management optimization was carried out, and the configuration requirements of charging pump and low-pressure safety injection pump in the original technical specifications were cancelled. In this paper, the risk-informed analysis technology is applied to analyze and determine whether the technical requirements related to the events could be optimized. Ensure the safe and stable operation of nuclear power plant.