Document: NUREG-0800
Document ID: c3322e66-68dd-4764-910a-4a84b5bd6b8f
Document Type: srp
Title: Setpoints
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML1515/ML15159A207.pdf
Revision Date: 2023-06
Chapter: 7
Section ID: 7.2
CFR Part: 
CFR Title: 

Content:
ed in IEEE Std 279-1971 and IEEE Std 603-1991. SRP Appendix 7.1-B, Section 3 and SRP Appendix 7.1-C, Section 4 provide review guidance for this topic. The evaluation of conformance to this requirement should be addressed in the review of Section 7.2 of the SAR. (o) GDC 28, “Reactivity Limits” Appendix 7.1-A-23 Draft Revision 6 – August 2015 “The reactivity control systems shall be designed with appropriate limits on the potential amount and rate of reactivity increase to ensure that the effects of postulated reactivity accidents can neither: (1) result in damage to the reactor coolant pressure boundary greater than limited local yielding nor (2) sufficiently disturb the core, its support structures or other reactor pressure vessel internals to impair significantly the capability to cool the core....” Applicability - I&C interlock and control systems. Review Methods - GDC 28 imposes functional requirements on I&C interlock and control systems to the extent they are provided to limit reactivity increases to prevent or limit the effect of reactivity accidents. Relevant I&C systems might include, for example, rod blocks or rod worth minimization systems. The review should confirm that the I&C systems provide the functions, performance, and reliability necessary to limit reactivity increases as credited for compliance with GDC 28. This review is coordinated with the organization responsible for the review of reactor systems. (p) GDC 29, “Protection Against Anticipated Operational Occurrences” “The protection and reactivity control systems shall be designed to ensure an extremely high probability of accomplishing their safety functions in the event of anticipated operational occurrences.” Applicability - The protection systems, reactivity control functions of control systems, and supporting data communications systems. Review Methods – The evaluation with respect to the requirements of GDC 29 is based on conformance of the protection system and