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:
labeled as “primary coolant boundary” to conform to standard terms used in the LMR industry. APPENDIX B. SODIUM-COOLED FAST REACTOR DESIGN CRITERIA Appendix B to DG-1330, Page B-35 VII. Additional SFR-DC Criterion SFR-DC Title and Content NRC Rationale for Adaption to GDC The use of the term “primary” indicates that the SFR-DC are applicable only to the primary cooling system, not the intermediate cooling system. The cover gas boundary is included as part of the primary coolant boundary (referred to as RCPB by PRISM) per NUREG-1368 (page 3-38). The GDC reference to electric power was removed. Refer to SFR- DC17 concerning those systems that require electric power. Appendix C to DG-1330, Page C-1 APPENDIX C MODULAR HIGH-TEMPERATURE GAS-COOLED REACTOR DESIGN CRITERIA The table below contains the modular high-temperature gas-cooled reactor design criteria (mHTGR-DC). These criteria are applicable to mHTGRs meeting the definition in the “Glossary” section of this RG. Applicants/designers may use the mHTGR-DC in this appendix to develop all or part of the principal design criteria (PDC) and may choose among the advanced reactor design criteria (ARDC) (Appendix A), sodium-cooled fast reactor design criteria (SFR-DC) (Appendix B), or mHTGR-DC (Appendix C) to develop each PDC. Applicants/designers may also develop entirely new PDC as needed to address unique design features in their respective designs. To develop these mHTGR-DC, the staff of the U.S. Nuclear Regulatory Commission (NRC) reviewed each general design criterion (GDC) in Appendix A, “General Design Criteria for Nuclear Power Plants,” to Title 10 of the Code of Federal Regulations (10 CFR) Part 50, “Domestic Licensing of Production and Utilization Facilities,” to determine its applicability to mHTGR designs. The NRC staff then determined what if any adaptation was appropriate for mHTGRs. The results are included in column 2 of the table below. The table also includes the NRC staff’s