This standard specifies the general principles and requirements for the single failure criterion to be applied to the power supply, instrumentation and control parts of the nuclear power plant safety system. This standard clarifies the single fault criterion, discusses various types of faults, guides how to apply the single fault criterion to safety systems and proposes an acceptable single fault analysis method. This standard does not specify which systems are subject to the single failure criterion. This standard applies to nuclear power plant safety systems. The application of this standard must be consistent with the requirements of GB 13284-1998 and its specified single fault criterion.
GB/T 13626-2001 history
2021GB/T 13626-2021 Application of the single-failure criterion for nuclear power plant safety systems
2008GB/T 13626-2008 Application of the single failure criterion to safety systems in nuclear power plant
2001GB/T 13626-2001 Application of the single failure criterion to safety systems in nuclear power plant