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:
ystems and Other Systems" The part applicable to information systems important to safety is: • IEEE Std. 603-1991, Clause 5.8.2, "Indication of Bypasses" Review Methods - SRP Appendix 7.1-C provides guidance for evaluating conformance to the requirements of IEEE Std. 603-1991, including the applicable regulatory guides. (d) 10 CFR 50.34(f)(2)(v): Addressing [TMI Action Plan Item I.D.3] Bypass and Inoperable Status Indication "Provide for automatic indication of the bypassed and operable status of safety systems." Applicability - The protection systems, RTS, ESFAS, information systems important to safety, interlock systems, and supporting data communication systems. Review Methods - Review of compliance with 10 CFR 50.34(f)(2)(v) 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 sections). Characteristic Review Guidance SRP Appendix 7.1-B SRP Appendix 7.1-C Auxiliary features Subsection 4.5 Subsection 5.1 Indication of bypasses Subsection 4.13 Subsection 5.8 Control and protection system interaction Subsection 4.7 Subsections 5.6 and 6.3 Independence Subsection 4.6 Subsection 5.6 Appendix 7.1-A-5 Revision 5 - March 2007 The evaluation of conformance with this requirement should be addressed in the review of Sections 7.2, 7.3, and 7.6 of the SAR. Bypass and inoperable status indication is required only for selected information system and interlock functions, as discussed in SRP Sections 7.5 and 7.6. (e) 10 CFR 50.34(f)(2)(xi): Addressing [TMI Action Plan Item II.D.3] Direct Indication of Relief and Safety Valve Position "Provide direct indication of relief and safety valve position (open or closed) in the control room." Applicability - Information systems important to safety. Review Methods - Relief and safety valve position indication should be included in the