Low temperature hazard protection design for nuclear power plants

Analyses the indoor air characteristic temperature, outdoor air design parameters, design principles, design methods and engineering measures for low temperature disaster protection of nuclear power plants. According to operation conditions, equipment material performance and functional importance, proposes to establish three types of characteristic parameters for low temperature protection design and three outdoor design parameters. Presents the ideas for the heating function failure analysis, establishes a design method for low temperature disaster protection in nuclear power plants, and provides a process of low temperature protection heating function and design basis analysis.