Document: NUREG-0800
Document ID: e3caee65-c7fb-44ba-b41b-b7a6e49073ca
Document Type: srp
Title: Revision 5 - March 2007
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0705/ML070550077.pdf
Revision Date: 2023-06
Chapter: 7
Section ID: 7
CFR Part: 
CFR Title: 

Content:
he correction sheet dated January 30, 1995. For nuclear power plants with construction permits issued before January 1, 1971, the applicant/licensee may elect to comply instead with the plant-specific licensing basis. For nuclear power plants with construction permits issued between January 1, 1971, and May 13, 1999, the applicant/licensee may elect to comply instead with the requirements stated in IEEE Std. 279-1971, “Criteria for Protection Systems for Nuclear Power Generating Stations.” 10 CFR 50.55a(h) requires in part that safety systems satisfy the requirements of IEEE Std. 603-1991 including Clause 5.7 as part of the safety system criteria, Clause 6.5 for functional design requirements, and Clause 6.8 for allowances and uncertainties. 10 CFR 50.55a(h) also requires in part that protection systems satisfy the criteria of IEEE Std. 279-1971 including Clause 3(9) regarding the bases for minimum performance requirements including response times and accuracies, Clause 4.9 for the capability for sensor checks, and Clause 4.10 for the capability for test and calibration. 10 CFR Part 50 Appendix A, General Design Criterion (GDC) 13, "Instrumentation and Control;" requires in part that instrumentation be provided to monitor variables and systems, and that controls be provided to maintain these variables and systems within prescribed operating ranges. GDC 20, "Protection System Functions," requires in part that the protection system be designed to initiate operation of appropriate systems to ensure that specified acceptable fuel design limits are not exceeded. GDC 21, "Protection System Reliability and Testability," requires in part that the protection system be designed for high functional reliability and in-service testability commensurate with the safety functions to be performed. GDC 24, "Separation of Protection and Control Systems," requires in part that the protection system be separated from the control systems to the extent that failure of any single