International Context Regarding Application Of Single Failure Criterion (SCF) For New Reactors

The paper provides an overview of the regulatory design requirements for new reactors addressing Single Failure Criterion (SFC) in accordance to international best-practices, particularly considering the SCF relation to in-service testing, maintenance, repair, inspection and monitoring of systems, structures and components important to safety. The report [1] discusses the detailed comparison of the current SFC requirements and guidelines published by the IAEA, WENRA, EUR and nuclear regulators in the United States, United Kingdom, Russia, Korea, Japan, China and Finland. However, this paper presents the summary of work from [1] and 2major examples from IAEA and WENRA and applications for small and modular reactors.