Document: NUREG-0800
Document ID: 96afb1d6-6ce9-41e4-b4ec-1fc7747bc0b2
Document Type: srp
Title: Revision 8 – January 2021
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML2033/ML20339A647.pdf
Revision Date: 2023-05
Chapter: 7
Section ID: 7
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,” describes a method that the staff considers acceptable for use in complying with the NRC’s regulations concerning the means for manual initiation of protective actions provided (1) by otherwise automatically initiated safety systems or (2) as a method diverse from automatic initiation. • Regulatory Issue Summary (RIS) 2002-22, Supplement 1, “Clarification on Endorsement of Nuclear Energy Institute Guidance in Designing Digital Upgrades in Instrumentation and Control Systems,” dated May 31, 2018, clarifies guidance for preparing and documenting qualitative assessments that can be used to evaluate the likelihood of failure of a proposed DI&C system or component modification. • SRP Table 7-1, “Regulatory Requirements, Acceptance Criteria, and Guidelines for Instrumentation and Control Systems Important to Safety.” • SRP Section 7.7, “Control Systems,” provides review guidance for addressing the potential for inadvertent (i.e., spurious) operation signals from control systems. BTP 7-19-8 Revision 8 – January 2021 • SRP Section 7.8, “Diverse Instrumentation and Control Systems,” describes the review process and additional acceptance criteria for diverse I&C systems provided to protect against the potential for CCFs. • SRP Chapter 18, “Human Factors Engineering,” Attachment A, provides a methodology for evaluating manual actions credited with the accomplishment of functions important to safety. • DI&C-ISG-04, “Highly-Integrated Control Rooms—Communications Issues (HICRc),” provides interim staff guidance (ISG) for addressing interactions among safety divisions and between safety-related equipment and equipment that is not safety related. 3. Scope The guidance of this BTP is intended for staff reviews of I&C safety systems proposed (1) in requests for license amendments as modifications to licensed NPPs, or (2) in applications for CPs, OLs, COLs, DCs, SDAs, and MLs. This BTP does not apply to proposed modifications performed