Document: NUREG-0800
Document ID: d804e0bf-cdaf-4241-8a9e-1eaa21d9ca1a
Document Type: srp
Title: ENGINEERED SAFETY FEATURES SYSTEMS
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0523/ML052350475.pdf
Revision Date: 2023-06
Chapter: 7
Section ID: 7.3
CFR Part: 
CFR Title: 

Content:
: Chapter 16: for an understanding of the qualification program for ESFAS and ESF control system components. for an understanding of the reactor and the reactor coolant system and its interconnections with the ESF systems. for the design bases, design features, and functional performance requirements of the ESF systems. for an understanding of the electrical power systems. for the design bases, design features,. and functional performance requirements of essential auxiliary supporting systems. for the courses of accidents for which the ESF system provides protective functions, the effects of failures of the protective functions, and the assumptions and initial conditions that form the bases of the accident analyses. for the proposed limiting conditions for operation for the ESF systems and the ESFAS. I I 7.3-5 Rev. 2 - July 1981 Reference to the above sections of the SAR is made to gain an understanding of the purpose of the ESF systems and an understanding of how the ESF systems and the ESFAS are designed and how they are to function. The General Design Criteria (GDC) include requirements for the ESFAS and the ESF control systems. Review guidance for conformance to the GDC are provided in Appendix A of SRP Section 7.1 (Ref. 4). The review guidance includes references to the guidelines in regulatory guides and industry codes and standards where applicable. An audit review of the ESFAS and ESF control systems should be made to confirm that the systems conform to the guidelines to support the conclusions of conformance to the regulations. The review is to evaluate the protection system design against the requirements of IEEE Std 279. This procedure is detailed in Appendix B to SRP Section 7.1 (Ref. 5). The procedures in Appendix B address only those design requirements that are specific in nature. For example paragraph 4.9 of IEEE Std 279 requires that the design include means for checking the availability of each system input sensor during operation. Appendix B