Document: NUREG-0800
Document ID: 949ca18d-b0e4-4b54-9ca9-fdb657988111
Document Type: srp
Title: Revision 5 - March 2007
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0706/ML070660170.pdf
Revision Date: 2023-06
Chapter: 7
Section ID: 7
CFR Part: 
CFR Title: 

Content:
(see table below for sections). Characteristic Review Guidance SRP Appendix 7.1-B SRP Appendix 7.1-C Design basis requirements Subsection 3 Subsection 4 General functional requirements Subsection 4.1 Subsections 5, 6.1, and 7.1 System integrity Subsection 4.5 Subsection 5.5 Setpoints Subsections 3 and 4.15 Subsection 6.8 Appendix 7.1-A-17 Revision 5 - March 2007 The evaluation of conformance with this requirement should be addressed in the review of Sections 7.2 and 7.3 of the SAR. (j) GDC 21, "Protection System Reliability and Testability" "The protection system shall be designed for high functional reliability and in-service testability commensurate with the safety functions to be performed. Redundancy and independence designed into the protection system shall be sufficient to assure that (1) no single failure results in loss of the protection function, and (2) removal from service of any component or channel does not result in loss of the required minimum redundancy unless the acceptable reliability of operation of the protection system can be otherwise demonstrated. The protection system shall be designed to permit periodic testing of its functioning when the reactor is in operation, including a capability to test channels independently to determine failures and losses of redundancy that may have occurred." Applicability - The protection systems, RTS, ESFAS, and supporting data communication systems. Review Methods - Review of compliance with GDC 21 should address the characteristics listed in the table below. These characteristics are described in IEEE Std. 279-1971 and IEEE Std. 603-1991, and methods for reviewing them are discussed in SRP Appendix 7.1-B and SRP Appendix 7.1-C (see table below for section). Characteristic Review Guidance SRP Appendix 7.1-B SRP Appendix 7.1-C Design basis requirements Subsection 3 Subsection 4 Single-failure criterion Subsection 4.2 Subsection 5.1 Completion of protective action Subsection 4.16 Subsections 5.2 and 7.3 Quality