ML23150A031

2b -Information Notice

ML23150A031
Person / Time
Issue date:	05/17/2023
From:	Charles Moulton NRC/NRR/DRA
To:
Hamburger K
Shared Package
ML23150A023	List: ML23150A024 ML23150A025 ML23150A026 ML23150A027 ML23150A028 ML23150A029 ML23150A030 ML23150A031 ML23150A032 ML23150A033 ML23150A034 ML23150A035 ML23150A036 ML23150A037 ML23150A038 ML23150A039 ML23150A040 ML23150A041 ML23150A042 ML23150A043 ML23150A044
References
Download: ML23150A031 (4)

Text

High Energy Arcing Fault Information Notice Charles Moulton Fire Protection Engineer PRA Licensing Branch B Division of Risk Assessment Office of Nuclear Reactor Regulation

NRC Information Notice 2023-01 Risk Insights from High Energy Arcing Fault Operating Experience and Analyses

• Discusses qualitative and quantitative risk insights

• HEAF operating experience review

• Describes new HEAF PRA method

Insights

• Simpler and more certain than mitigation

• Mitigation strategies are still important Prevention

• Good practices are key to preventing HEAF events

• Preventative maintenance/post-maintenance testing Maintenance

• Results can identify risk significant equipment

• Helps focus resources for prevention PRA models

Questions?