Document: NRC Regulatory Guide
Document ID: 6f0a99f2-d25a-44e3-b7f2-3286449a9752
Document Type: regulatory_guide
Title: Water Sources for Long-Term Recirculation Cooling Following a Loss-of-Coolant Accident (Rev. 5)
Source: NRC Regulatory Guide Division 1
Source URL: https://www.nrc.gov/docs/ML2126/ML21266A185.pdf
Revision Date: 2023-05
Chapter: 
Section ID: RG-1.82
CFR Part: 
CFR Title: 

Content:
acteristics Prototype Strainer Head Loss Testing Debris Penetration Assessment NPSH Evaluation • Minimum Margins Strainer Qualification • Plant Head Loss Assessment • Head Loss < NPSH Margin • Downstream Source Term Acceptable • Structural Limits Met • Vortexing and Other Limits Met Downstream Effects Evaluation Upstream Evaluation • Upper Levels • Sump/Suppression Pool • Trash Rack DG-1385, Page 14 Consideration of International Standards The International Atomic Energy Agency (IAEA) works with member states and other partners to promote the safe, secure, and peaceful use of nuclear technologies. The IAEA develops Safety Standards and Safety Guides for protecting people and the environment from harmful effects of ionizing radiation. This system of safety fundamentals, safety requirements, safety guides, and other relevant reports reflects an international perspective on what constitutes a high level of safety. To inform its development of this RG, the NRC considered IAEA Safety Requirements and Safety Guides pursuant to the Commission’s International Policy Statement (Ref. 28) and Management Directive and Handbook 6.6, “Regulatory Guides” (Ref. 29). The following IAEA Safety Requirements and Guides were considered in the update of the Regulatory Guide: • IAEA Specific Safety Guide SSG-56, “Design of the Reactor Coolant System and Associated Systems for Nuclear Power Plants,” issued in 2020 (Ref. 30), Sections 7 and 8. Documents Discussed in Staff Regulatory Guidance This RG endorses, in part, the use of one or more codes or standards developed by external organizations, and other third-party guidance documents. These codes, standards and third-party guidance documents may contain references to other codes, standards or third-party guidance documents (“secondary references”). If a secondary reference has itself been incorporated by reference into NRC regulations as a requirement, then licensees and applicants must comply with that