Document: NUREG-0800
Document ID: 62485d6f-6b2a-4360-acb5-f874d2adc406
Document Type: srp
Title: PIPING SYSTEMS AND COMPONENTS - INSPECTIONS, TESTS,
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML1808/ML18088A069.pdf
Revision Date: 2023-06
Chapter: 14
Section ID: 14.3.3
CFR Part: 
CFR Title: 

Content:
3−8 Draft Revision 1 – September 2018 preliminary piping analysis results to establish a window of acceptable piping stress values for selected piping materials. The ITAAC should verify that these values are satisfied using actual material properties and final piping configurations, and should reconcile the as-built piping data with the LBB assumptions. For an as-built LBB analysis ITAAC, the Design Commitment should specify that the ASME Code Class 1 and 2 piping system and interconnected nozzles are evaluated for leak-before-break (LBB). The ITA should specify that an analysis will be performed of the ASME Code Class 1 and 2 as-built piping and interconnected equipment nozzles. The Acceptance Criteria should specify that the as-built LBB analysis for the ASME Code Class 1 and 2 piping listed in the applicable table and interconnected equipment nozzles is bounded by the as-designed LBB analysis. Detailed information that supports this ITAAC should be included in DCD Tier 2, Chapter 3. A fifth ITAAC should require that an inspection and analysis of the as-built high- and moderate-energy piping systems and protective features for the safety-related SSCs be performed. This inspection and analysis verifies that the as-built safety-related SSCs have been constructed and installed in accordance with the approved design and are protected against or will withstand the dynamic and environmental effects associated with postulated failures in high- and moderate-energy piping systems. The inspection and analysis includes, but is not limited to, verification that protective features and safety-related SSCs are installed in accordance with the as-built Pipe Break Hazards Analysis Report and that all field changes are analyzed to reconcile deviations of the as- built design from the design described in the FSAR. For a Pipe Break Hazards Protective Features Verification ITAAC, the Design Commitment should specify that safety-related SSCs are protected against the dynamic and