Document: NUREG-0800
Document ID: 6b22034f-6955-40ed-9a0f-7feb03c3d744
Document Type: srp
Title: (Ref. 4).
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0523/ML052350477.pdf
Revision Date: 2023-06
Chapter: 7
Section ID: 7.1
CFR Part: 
CFR Title: 

Content:
The review guidance includes references to the guide- lines in regulatory guides and industry codes and standards where applicable. An audit review of the information systems important to safety should be made to confirm that the systems conform to the guidelines to support the conclusions of conformance to the regulations. The information systems important to safety are reviewed as follows: 1. The information systems important to safety are reviewed to confirm that they conform to the requirements of the GDC identified in the acceptance criteria in subsection II of this SRP section. 2. The guidelines for the instrumentation to assess plant conditions during and following an accident are provided in Regulatory Guide (RG) 1.97. The review should confirm that the information systems important to safety are designed and implemented in accordance to the guidelines of RG 1.97. The information systems should cover appropriate variables, consistent with the assumptions for accident analyses and with the information needs of the operators in transient and accident conditions. 3. The guidelines for the instrumentation for bypassed and inoperable status indication for safety systems are provided in RG 1.47. The review should confirm that the information systems important to safety are designed and implemented in accordance to the guidelines of RG 1.47. 4. The guidelines for the physical independence of electrical systems are provided in RG 1.75. The review should confirm that the variables which are classified as Category I in RG 1.97 are designed and implemented in accordance to the guidelines of RG 1.75. 5. The guidelines for instrument spans and set points are provided in RG 1.105. The review should confirm that the information systems important to safety are designed and implemented in accordance to the guidelines of RG 1.105. The accuracy and range of indicating instru- mentation should be consistent with the assumptions of the accident analyses. Any exceptions to these