Document: NUREG-0800
Document ID: d2f0cc81-920c-4065-b74b-67114ba68b0e
Document Type: srp
Title: through 7.9 of the SAR. Where exceptions are taken to the guidance provided by regulatory guides, and
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0525/ML052500493.pdf
Revision Date: 2023-06
Chapter: 7
Section ID: 7.2
CFR Part: 
CFR Title: 

Content:
s function in a reliable manner." Applicability — Systems and equipment used for mitigating ATWS events pursuant to the requirements of 10 CFR 50.62 and supporting data communication systems. Review Methods — Section 7.8 provides guidance for the evaluation of conformance to the requirements of 10 CFR 50.62. n. 52.47(a)(1)(iv) Resolution of Unresolved and Generic Safety Issues "An application for design certification must contain proposed technical resolutions of those unresolved safety issues and medium- and high-priority generic safety issues that are identified in the version of NUREG-0933 current on the date six months prior to application and that are technically relevant to the design." Applicability — All I&C systems that are part of applications for design certification under 10 CFR 52, Subpart B, or combined licenses under 10 CFR 52, Subpart C. Review Methods — The design must address the unresolved and generic safety issues applicable to I&C systems as discussed above. As of April 1, 1997, these items are the following: 1. Task Action Plan Items A-9 ATWS. Refer to Section 7.8. A-24 Qualification of Class 1E safety equipment. Refer to SRP Chapter 3, Appendix 7.1-B item 5, and Appendix 7.1-C item 9. A-47 Safety implications of control systems. Refer to resolution of Generic Letter 89-19. 2. Generic Issues Rev. 4 — June 1997 SRP 7.1-A-8 3 Setpoint drift in instrumentation. Refer to Draft Reg. Guide DG-1045 and BTP HICB-12. 45 Inoperability of instrumentation due to extreme cold weather. Refer to Reg. Guide 1.151, "Instrument Sensing Lines." 48 Limiting conditions for operation for Class 1E vital instrument buses in operating reactors. Refer to plant technical specification review in Chapter 16. 64 Identification of protection system instrument sensing lines. Refer to Appendix 7.1-B item 22, Appendix 7.1-C item 16, and Reg. Guide 1.151. 67.3.3 Improved accident monitoring. Refer to Reg. Guide 1.97 review in Section 7.5, BTP HICB-10 and 10 CFR 50.34