Document: NRC Regulatory Guide
Document ID: da269da5-7390-4252-b08f-bdb7aeb8beaf
Document Type: regulatory_guide
Title: Developing Principal Design Criteria for Non-Light Water Reactors + HISTORY - HISTORY 02/2017 – DG-1330 , Proposed Revision 0
Source: NRC Regulatory Guide Division 1
Source URL: https://www.nrc.gov/docs/ML1630/ML16301A307.pdf
Revision Date: 2023-06
Chapter: 
Section ID: RG-1.232
CFR Part: 
CFR Title: 

Content:
ppropriate periodic inspection of important components to ensure the integrity and capability of the system. In most advanced reactor designs, a single system (i.e the residual heat removal system) is provided to perform both the residual heat removal and emergency core cooling functions. In this case, the single system would be designed to meet the requirements of SFR- DC 34 and SFR-DC 35. (for more discussion see NUREG-0968 (Ref. 5) and NUREG-1368 (Ref. 4)) However, the staff acknowledges that this may not be the case for every advanced reactor design. Therefore, to allow current and future non-LWR designers the flexibility to provide a single system or multiple systems to perform residual heat removal and emergency core cooling, the staff decided to keep the SFR-DC 34 and SFR-DC 35 separate in lieu of combining them into a single criterion. The staff’s approach to provide two separate criteria is consistent with the approach taken in the LWR GDCs. The SFR-DC has slightly different wording than the GDC to clarify the scope of the criteria. Any system, or portions of a system, credited with an emergency core cooling function during postulated accidents (for example, a system that performs both the residual heat removal function and the emergency core cooling function) would need to meet SFR-DC 36. The list of examples has been deleted because it applies to LWR designs, and each specific design will have different important APPENDIX B. SODIUM-COOLED FAST REACTOR DESIGN CRITERIA Appendix B to DG-1330, Page B-18 IV. Fluid Systems Criterion SFR-DC Title and Content NRC Rationale for Adaption to GDC components associated with residual heat removal. This revision allows for a technology-neutral SFR-DC. Review of the proposed DOE SFR and HTGR DC found that only SFR provided specific examples of important components but were generic in nature and did not include any significant additional guidance. 37 Testing of residual heat removal system. Same as ARDC A system that