Document: NUREG-0800
Document ID: 9c6c6c9f-7e30-4d2b-ab07-6d21773f319d
Document Type: srp
Title: INSTRUMENTATION AND CONTROLS - INSPECTIONS, TESTS, ANALYSES,
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0706/ML070660624.pdf
Revision Date: 2023-06
Chapter: 14
Section ID: 14.3.5
CFR Part: 
CFR Title: 

Content:
description of system purpose, safety functions, equipment quality, equipment qualification, automatic decision-making and trip logic functions, manual initiation functions, and design features (e.g., system architecture) provided to achieve high functional reliability. The functions and characteristics of other I&C systems important to safety should also be discussed to the extent that the functions and characteristics are necessary to support remote shutdown, support required operator actions or assessment of plant conditions or safety system performance, maintain safety systems in a state that assures their availability during an accident, minimize or mitigate control system failures that would interfere with or cause unnecessary challenges to safety systems, or provide diverse back-up to protection systems. 4. The reviewer should assure that appropriate guidance is provided to other organizations such that I&C issues in the ITAAC and associated Design Descriptions are treated in a consistent manner among organizations. 14.3.5-7 March 2007 5. The reviewer should assure that the standard ITAAC entries in SRP Section 14.3, Appendix D related to I&C items, are included in the appropriate systems of the standard design. In particular, the reviewer should assure consistent application and treatment of the standard ITAAC entries for basic configuration ITAAC (environmental qualification aspects) and independence for electrical and I&C systems. 6. The reviewer should assure that design features from the resolutions of selected technical and policy issues for the design are adequately addressed in Tier 1 material, ITAAC Design Descriptions, or ITAAC references to the FSAR, based on safety significance. Assure that the appropriate NRC guidance, requirements, bases, and resolutions for these items are documented clearly in the safety evaluation report (SER). 7. The reviewer of system implementation according to DAC should confirm via a sequence of audits that the ITAAC is