Document: NUREG-0800
Document ID: 0a15bfe3-b20f-42c5-a9ae-f05462e14c42
Document Type: srp
Title: REACTOR TRIP SYSTEM
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML1602/ML16020A059.pdf
Revision Date: 2023-06
Chapter: 7
Section ID: 7.2
CFR Part: 
CFR Title: 

Content:
he parameters may independently indicate an abnormal condition, even if the other parameters are sensed incorrectly (see NUREG/CR-6303, “Method for Performing Diversity and Defense-in-Depth Analyses of Reactor Protection Systems”). The diverse means 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 RTSs, 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. F. System testing and inoperable surveillance - See 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. G. Use of digital systems - See SRP Appendix 7.0-A and SRP Appendix 7.1-D. H. Setpoint determination - See RG 1.105, “Setpoints for Safety-Related Instrumentation,” and SRP BTP 7-12. 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. 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. 7.2-7 Revision 6 – August 2016 For review of a COL application, the scope of the review is dependent on whether the COL applicant references a DC, an early site permit or other