Problems and solutions of fire hazard analysis in nuclear power plants

Fire is one of the most important risks faced by nuclear power plants, and the fire safety management of nuclear power plants is becoming more and more important. Fire hazard analysis of nuclear power plant, as an important comprehensive study, includes fire protection design, fire protection facilities allocation and fire fighting ability of personnel, can reflect the real state of fire control management of nuclear power plant. However, most of the fire hazard analysis of nuclear power plants is still in the FSAR stage. After many years of operation, the information of fire boundary, fire control system or safety equipment layout changes caused by related engineering renovation has not been updated and verified. The existing conclusions of fire hazard analysis of nuclear power plants can not reflect the real fire safety status of nuclear power plants. Combining with the standard documents of fire hazard analysis for nuclear power plants in China and the new methods and applications widely adopted in the world at present, this paper puts forward some problems and solutions of fire hazard analysis at present. (authors)