Document: NUREG-0800
Document ID: fafcb45b-b0e5-49ad-9a69-0de2e8975189
Document Type: srp
Title: describes the general procedures to be followed in reviewing any I&C system. Section 7.5
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0525/ML052500506.pdf
Revision Date: 2023-06
Chapter: 7
Section ID: 7.1
CFR Part: 
CFR Title: 

Content:
ents of GDC 2 and 4. The post-accident monitoring system conforms to the guidelines for the instrumentation to access plant conditions during and following an accident provided in Reg. Guide 1.97. The redundant information systems conform to the guidelines for the physical independence of electrical systems provided in Reg. Guide 1.75. The instrument spans and EOP action points were established in accordance with the guidelines of Draft Reg. Guide DG-1045. The environmental monitoring system provided to protect the safety instrument sensing lines from freezing conforms to the guidelines of Reg. Guide 1.151, position 5. The post-accident monitoring system includes appropriate variables. The range and accuracy of the instrument channels for these variables are consistent with the plant safety analysis. The post-accident monitoring system includes appropriate variables for monitoring severe accident conditions. The variables monitored and the range and accuracy of instrumentation provided to monitor these variables is consistent with the severe accident analysis. Therefore, the staff finds that the post-accident monitoring system meets the requirements of GDC 13 and 19. Applicable to PWRs only. 2 Applicable to BWRs only. 3 Rev. 4 — June 1997 SRP 7.5-9 The post-accident monitoring system includes the following functions required by 10 CFR 50.34(f): [feedwater system flow indication ], accident monitoring instrumentation, inadequate core cooling 2 instrumentation, instruments for monitoring plant conditions following core damage, [central reactor vessel water level recording ]. Additionally, the power supply for the PAM pressurizer level 3 indication complies with the requirements of 10 CFR 50.34(f)(xx) [applicable to PWRs only]. Therefore, the Staff concludes that the instrumentation systems important to safety satisfy the requirements of 10 CFR 50.34(f), Subparts xii, xvii, xviii, xix, xx, and xxiv. The Staff reviewed the systems for which a bypassed or inoperable