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:
h actions can be taken to operate the unit safety under normal conditions and to maintain it in a safe condition under accident conditions. The safety parameter display system, the information systems associated with the emergency response facilities, and the nuclear data link, non-safety portions of PAM, non-safety portions of BISI, and non-safety portions of the annunciator systems are appropriately isolated from safety systems. Electrical isolation devices were qualified in accordance with the guidance of BTP HICB-11. Therefore, the staff concludes that the isolation of these systems from safety systems satisfies the requirements of 10 CFR 50.55a(h) and GDC 24. The applicant/licensee has also incorporated in the system design the recommendations of TMI task action plan items [identify item number and how implemented] that the Staff has reviewed and found acceptable. In the review of the information systems important to safety, the Staff examined the dependence of these systems on the availability of essential auxiliary systems. Based on this review and coordination with those having primary review responsibility of EAS systems, the Staff concludes that the design of the information systems important to safety is compatible with the functional requirements of EAS systems. Rev. 4 — June 1997 SRP 7.5-10 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 guidance of Reg. Guide 1.152. Therefore, the special characteristics of computer systems have been adequately addressed, and the Staff finds that the information systems important to safety satisfy these requirements of GDC 1. Note: the following findings apply only to applications under 10 CFR 52. The design of the information systems important to safety appropriately addresses the