Document: NUREG-0800
Document ID: 6b7eddf4-f7ce-4821-9f11-e37070221e57
Document Type: srp
Title: DYNAMIC TESTING AND ANALYSIS OF SYSTEMS, STRUCTURES, AND
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML1613/ML16133A418.pdf
Revision Date: 2023-06
Chapter: 3
Section ID: 3.9.2
CFR Part: 
CFR Title: 

Content:
ins additional guidance related to in-plant measurement issues. (ii) The power ascension plan, including planned operating conditions, measurement conditions, flow rates, and power levels, limits, and plans for extrapolating to higher power levels prior to further power ascension. (iii) Acceptance criteria and allowable limits, including actions to be taken if any limits are exceeded, and plans for updates to benchmarking bias errors and uncertainties. (iv) Duration of testing, with justification that the duration is sufficient to ensure adequate fatigue life assessment. (v) Plans for whether actual or dummy fuel elements will be used during the preoperational testing. B. Power ascension and post-testing provisions. The staff reviews the plans developed by the applicant for power ascension monitoring and post-testing evaluation for reasonableness and consistency with the original analysis results. In particular, the following items should be reviewed: (i) Vibration, strain, and/or pressure transducer data, including peak and root-mean-square (RMS) values and, where applicable, frequency spectra. (ii) Comparisons of vibration, strain, and/or pressure transducer data to acceptance limits, as well as previously simulated analysis results. (iii) Updates to analysis model benchmarking based on comparisons of measurements and simulations, as well as to acceptance limits. (iv) Estimates, through data extrapolation, of anticipated vibration, strain, and/or pressure levels at subsequent power levels, and comparisons to acceptance limits. (v) Final data analysis, comparisons to simulations and limits, and benchmarking, to be included in the final report provided to the staff following power ascension. C. Special Guidance for Steam Dryer Monitoring. The staff reviews the applicant’s plans to obtain and evaluate BWR steam dryer vibration and stress measurements. Key review elements include: 3.9.2-11 Revision 4 – March 2017 (i) Data from hood and skirt instrumentation,