Document: NUREG-0800
Document ID: 21b37b7c-b45c-4247-b4a5-c2f28df75be4
Document Type: srp
Title: INSTRUMENTATION AND CONTROLS (Tier 1)
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0520/ML052070663.pdf
Revision Date: 2023-06
Chapter: 14
Section ID: 14.3.5
CFR Part: 
CFR Title: 

Content:
1 REVIEW RESPONSIBILITIES Primary - Instrumentation and Controls Branch (HICB) Secondary - None I. AREAS OF REVIEW The information to be reviewed is the Tier 1 information and the inspections, tests, analyses, and acceptance criteria (ITAAC) for instrumentation and control (I&C) systems proposed by the applicant. This review should be coordinated with the review of the applicant's I&C systems design as described in Chapter 7 of the SRP. The reviewer's primary responsibilities include a review of Tier 1 for I&C systems involving reactor protection and control, engineered safety features actuation, other miscellaneous I&C systems, additional material in Tier 1 related to application of digital computers in I&C systems, and selected interface requirements related to I&C issues. HICB has secondary review responsibilities for ESF systems, reactivity control systems, and other systems using I&C equipment. Review Interfaces SRP Section 14.3 provides general guidance on review interfaces. HICB performs related reviews and coordination activities, as requested by other branches, for issues in Tier 1 related to DRAFT Rev. 0 - April 1996 14.3.5-2 I&C systems. In addition, HICB will coordinate other branches' evaluations that interface with the overall review of the systems as follows: 1. The Reactor Systems Branch (SRXB) determines the acceptability of Tier 1 information regarding reactor and core cooling systems design features that prevent and mitigate design basis accidents in SRP Section 14.3.4. 2. The Electrical Engineering Branch (EELB) determines the acceptability of Tier 1 information regarding electrical issues in SRP Section 14.3.6. Standard ITAAC entries for several attributes of I&C systems are listed in Appendix D to this SRP section. HICB is responsible for consistent use of the standard ITAAC in Tier 1 for electrical isolation and physical separation (independence) as it pertains to I&C issues. Guidance regarding its use should be provided to other branches as