Document: NUREG-0800
Document ID: 14c7085e-8b87-4b50-97fb-a095ea003ae8
Document Type: srp
Title: describes the general procedures to be followed in reviewing any I&C system. Procedures for
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0525/ML052500511.pdf
Revision Date: 2023-06
Chapter: 7
Section ID: 7.1
CFR Part: 
CFR Title: 

Content:
e is reasonable assurance that the systems fully conform to the guidelines applicable to these systems. Therefore, the Staff finds that these requirements of General Design Criteria (GDC) 1 and 10 CFR 50.55a(a)1 have been met. The diverse I&C systems are appropriately isolated from safety systems. Therefore, the Staff concludes that the isolation of these systems from safety systems satisfies the requirements of 10 CFR 50.55a(h) and the requirements of GDC 24. Based on the applicant/licensee's commitment to the quality assurance guidance of Generic Letter 85-06, the Staff finds that the quality assurance requirements of GDC 1 have been met. Based on the review of diverse I&C system status information, manual initiation capabilities, and provisions to support safe shutdown, the Staff concludes that information is provided to monitor the system over the anticipated ranges for normal operation, for anticipated operational occurrences, and for accident conditions as appropriate to assure adequate safety. Appropriate controls are provided for manual initiation of diverse I&C functions. The diverse I&C systems appropriately support actions to operate the nuclear power unit safety under normal conditions and to maintain it in a safe condition under accident conditions. Therefore, the Staff finds that the design of the diverse I&C systems satisfies the requirements of GDC 13 and 19. Based on the licensee's commitment to periodically test the diverse I&C systems from end-to-end [summarize the specific commitment], the Staff concludes that an acceptable level of availability for the system can be maintained. Note: the following finding applies only to systems involving digital computer-based components. Based on the review of software development plans and the inspections of the computer development process and design outputs, the Staff concludes that the computer systems meet the Rev. 4 — June 1997 SRP 7.8-8 guidance of Reg. Guide 1.152. Therefore, the special