Document: NUREG-0800
Document ID: 062bafc6-0bc5-4a2f-a566-7200c0c49d7a
Document Type: srp
Title: ENGINEERED SAFETY FEATURES SYSTEMS
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML1515/ML15159B099.pdf
Revision Date: 2023-06
Chapter: 7
Section ID: 7.3
CFR Part: 
CFR Title: 

Content:
may actuate the same protective function or different protective functions, and may be automatically or manually activated, consistent with the response time requirements of the function. For digital computer-based ESFAS systems, the applicant or licensee should have performed a defense-in-depth and diversity analysis. Additionally, for advanced reactor design under 10 CFR Part 52, “Licenses, Certifications, and Approvals for Nuclear Power Plants,” the design should provide for manual, system-level actuation of critical safety functions. SRP BTP 7-19 provides guidance for the review of diversity and defense-in- depth. G. System testing and inoperable surveillance - See SRP Appendix SRP 7.1-B, Subsections 4.9 and 4.10 or SRP Appendix 7.1-C, Subsections 5.7, 5.8, and 6.5. H. Use of digital systems - See SRP Appendix 7.0-A and SRP Appendix 7.1-D. I. Setpoint determination - See RG 1.105, “Setpoints for Safety-Related Instrumentation,” and SRP BTP 7-12, BTP 7-3, Appendix 7.1-B, Subsection 4.18, and Appendix 7.1-C, Subsection 6.8. J. ESF control systems - Conformance to the single-failure criterion on a system basis, and operability from onsite and offsite electrical power as required by General Design Criteria 34, 35, 38, and 41. 2. For review of a DC application, the reviewer should follow the above procedures to verify that the design, including requirements and restrictions (e.g., interface requirements and site parameters), set forth in the final safety analysis report (FSAR) meets the acceptance criteria. DCs have referred to the FSAR as the design control document. 7.3-8 Draft Revision 6 – August 2015 The reviewer should also consider the appropriateness of identified COL action items. The reviewer may identify additional COL action items; however, to ensure these COL action items are addressed during a COL application, they should be added to the DC FSAR. For review of a COL application, the scope of the review is dependent on whether the COL applicant