Document: NRC Regulatory Guide
Document ID: 9c99a4b7-8619-41f0-b716-262bfdb03941
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:
dary” to conform to standard terms used in the liquid- metal reactor (LMR) industry. The use of the term “primary” indicates that the SFR-DC are applicable to the primary cooling system, not the intermediate cooling system. 14 Primary coolant boundary. The primary coolant boundary shall be designed, fabricated, erected, and tested so as to have an extremely low probability of abnormal leakage, of rapidly propagating failure, and of gross rupture. “Reactor coolant pressure boundary” (RCPB) has been relabeled as “primary coolant boundary” to conform to standard terms used in the LMR industry. 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). 15 Primary coolant system design. The primary coolant system and associated auxiliary, control, and protection systems shall be designed with sufficient margin to ensure that the design conditions of the primary coolant boundary are not exceeded during any condition of normal operation, including anticipated operational occurrences. “Reactor coolant pressure boundary” has been relabeled as “primary coolant boundary” to conform to standard terms used in the LMR industry. The use of the term “primary” indicates that the SFR-DC are applicable only to the primary cooling system, not the intermediate cooling system. APPENDIX B. SODIUM-COOLED FAST REACTOR DESIGN CRITERIA Appendix B to DG-1330, Page B-5 II. Multiple Barriers Criterion SFR-DC Title and Content NRC Rationale for Adaption to GDC 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). 16 Containment design. A reactor containment consisting of a high-strength, low- leakage, pressure-retaining structure surrounding the reactor and its primary