Nuclear Seismic Qualification: qualification_by_test
Seismic qualification requirements for nuclear power plant safety-related equipment per IEEE 344-2013, NRC Regulatory Guide 1.100 Rev.4, and NRC RG 1.60/1.61. Covers equipment seismic categories (Class 1E, Category I/II, non-seismic), test levels (OBE/SSE in g), Required Response Spectra (RRS) frequency ranges, damping ratios, fragility parameters (median capacity Am, randomness beta_R, uncertainty beta_U, HCLPF) by equipment class (switchgear, MCC, I&C panels, diesel generators, pumps, valves, piping, tanks), and anchorage design requirements.
| equipment category | qualification parameter | description | notes | parameter unit | parameter value max | parameter value min | parameter value typical | qualification method | seismic category |
|---|---|---|---|---|---|---|---|---|---|
| qualification_by_test | trs_vs_rrs_envelope_pct | Maximum allowable deficit of Test Response Spectrum (TRS) below Required Response Spectrum (RRS). TRS must envelope RRS. | IEEE 344-2013 Sec 6.3.4: TRS shall envelop or equal RRS. A 10% deficit may be acceptable if peak response in that frequency range is demonstrated to be acceptable. | percent | 10 | 0 | 5 | test | Class_1E_Seismic_Category_I |
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