Document: NUREG-0800
Document ID: ba51de63-39c0-4396-acd5-87521e5e5c74
Document Type: srp
Title: RELIABILITY ASSURANCE PROGRAM (RAP)
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0631/ML063190018.pdf
Revision Date: 2023-06
Chapter: 17
Section ID: 17.4
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Content:
REVIEW RESPONSIBILITIES Primary - Organization responsible for quality assurance (QA) Secondary - Organization responsible for probabilistic risk assessment (PRA) - Organization responsible for the Maintenance Rule I. AREAS OF REVIEW This standard review plan (SRP) section pertains to design certification (DC) applications and combined license (COL) applications. The RAP applies to those systems, structures, and components (SSCs) that are identified as being significant contributors to plant safety as determined by using probabilistic/PRA, deterministic, or other methods of analysis, including information obtained from sources such as the plant- and site-specific PRA, industry operating experience, relevant component failure data bases, and expert panels. The purposes of the RAP are to provide reasonable assurance that: 1. a reactor is designed, constructed, and operated in a manner that is consistent with the assumptions and risk insights for these SSCs, 2. these SSCs do not degrade to an unacceptable level during plant operations, 3. the frequency of transients that challenge SSCs is minimized, and 4. these SSCs function reliably when challenged. 17.4-2 March 2007 The RAP is implemented in two stages. The first stage applies to reliability assurance activities that occur before the initial fuel load. The objective of the RAP at this stage is to ensure that SSC reliability is properly considered and designed into the plant and is implemented through the reactor design, procurement, fabrication, construction, and preoperation test activities and programs. The SSC reliabilities assumed in the design stage need to be realistic and achievable. The second stage applies to reliability assurance activities for an operating plant. The objective during this stage is to ensure that the reliability for SSCs within the scope of the RAP is maintained during plant operations. Reliability assurance activities for this stage are integrated into existing programs (e.g., maintenance