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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CFR Title: 

Content:
r potential interdisciplinary concerns: a. the applicant’s documentation of its safety-significance determination for a proposed DI&C system and the supporting technical basis. If risk insights from plant-specific PRAs are used to inform such a determination, the PRA results should be reviewed by the staff. b. the results of any D3 assessment, including consideration of spurious operations, and specifically the following: – any means used to eliminate potential CCFs from further consideration, any information demonstrating that these means are effective, and any remaining CCF vulnerabilities (residual risks) – any diverse means provided by the applicant to accomplish the same or a different function than the safety function disabled by a postulated CCF for any CCFs not eliminated using design attributes (if any diverse means is credited to mitigate the potential CCF, the information provided to demonstrate the its effectiveness of the diverse means, including assessment from the results of HFE analysis associated with of any manual operator actions if used as a diverse means) – the results of any consequence analysis that the applicant has performed for CCFs not eliminated from further consideration, mitigated using diverse means, are verified as being acceptable, with such an analysis demonstrating that the consequences of the CCF are within acceptable limits for each AOO and PA c. for systems that the applicant has not assessed for CCF, information showing that all conditions introduced by the proposed modification are bounded by the acceptance BTP 7-19-32 Revision 8 – January 2021 criteria defined in the FSAR or the LAR for the limiting events applicable to the proposed DI&C system or component d. for manual system-level actuation and indications to address point 4, design information showing the following: – controls and displays provided in the MCR to perform manual system- or division-level actuation of critical safety functions – controls and