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:
.” Together with the APPENDIX A. ADVANCED REACTOR DESIGN CRITERIA Appendix A to DG-1330, Page A-17 IV. Fluid Systems Criterion ARDC Title and Content NRC Rationale for Adaptions to GDC ultimate heat sink, they are part of the operability testing of the system as a whole. The GDC reference to electric power was removed. Refer to ARDC 17 concerning those systems that require electric power. 38 Containment heat removal. A system to remove heat from the reactor containment shall be provided as necessary to maintain the containment pressure and temperature within acceptable limits following postulated accidents. Suitable redundancy in components and features and suitable interconnections, leak detection, isolation, and containment capabilities shall be provided to ensure that the system safety function can be accomplished, assuming a single failure. “…as necessary…” is meant to condition an ARDC 38 application to designs requiring heat removal for conventional containments that are found to require heat removal measures. The LOCA reference has been removed to provide for any postulated accident that might affect the containment structure. Containment structure safety system redundancy is addressed in the second paragraph. 39 Inspection of containment heat removal system. The containment heat removal system shall be designed to permit appropriate periodic inspection of important components to ensure the integrity and capability of the system. Examples were deleted to make the ARDC technology neutral. 40 Testing of containment heat removal system. The containment heat removal system shall be designed to permit appropriate periodic functional testing to ensure (1) the structural and leaktight integrity of its components, (2) the operability and performance of the system components, and (3) the operability of the system as a whole, and under conditions as close to the design as practical, the performance of the full operational sequence that brings the system into