Document: NUREG-0800
Document ID: f4b8f0c1-9a14-46be-88c9-a6cb74d64dff
Document Type: srp
Title: Rev. 4 — June 1997
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0525/ML052500499.pdf
Revision Date: 2023-06
Chapter: 7
Section ID: 7
CFR Part: 
CFR Title: 

Content:
) system, as elaborated in Sections 7.2 through 7.9. IEEE Std 603, "Criteria for Safety Systems for Nuclear Power Generating Stations," has since superseded ANSI/IEEE Std 279. The guidance in IEEE Std 603, as endorsed by Reg. Guide 1.153, "Criteria for Power, Instrumentation, and Control Portions of Safety Systems," incorporates the guidance of ANSI/IEEE Std 279, and includes all I&C safety systems within its scope. The guidance described in IEEE Std 603 may be used by the NRC staff in its evaluation of I&C safety systems. The reviewer may also use the concepts of IEEE Std 603 as a starting point for the review of other I&C systems. IEEE Std 603 does not directly discuss digital systems. It is supplemented by IEEE Std 7-4.3.2, "IEEE Standard for Digital Computers in Safety Systems of Nuclear Power Generating Stations," which provides criteria for applying IEEE Std 603 to computer systems. IEEE Std 7-4.3.2 is endorsed by Reg. Guide 1.152, "Criteria for Digital Computers in Safety Systems of Nuclear Power Plants." References to IEEE Std 603 in the remainder of this appendix should be read as including IEEE Std 7-4.3.2, Reg. Guide 1.152, and Reg. Guide 1.153. This appendix discusses the guidance of IEEE Std 603 as it is used in the review of safety systems to determine that these systems meet NRC regulations. The appendix is not a stand-alone discussion of IEEE Rev. 4 — June 1997 SRP 7.1-C-2 Std 603 and IEEE Std 7-4.3.2. Each section of this appendix relates directly to one or more sections of the standards. Additional background or detailed information relevant to this review can be found in the references to this section. 1. Section 1 — Scope The scope of IEEE Std 603 includes all I&C safety systems, which are the systems covered in Sections 7.2 through 7.6 of the safety analysis report (SAR). Except for the requirements for independence between control systems and protection systems, IEEE Std 603 does not directly apply to the non-safety systems such as the