Nuclear Seismic Qualification: piping_large
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 |
|---|---|---|---|---|---|---|---|---|---|
| piping_large | fragility_median_capacity_Am_g | Median seismic capacity for large-bore piping (>= 4 in nominal) in Category I systems. | Large bore piping typically designed with large margin; support anchorage often governs. | g | 15 | 2 | 5 | fragility_analysis | Class_1E_Seismic_Category_I |
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anchorage_design2 rowsclass_1e_active_electrical3 rowsclass_1e_passive_structural3 rowsdiesel_generator2 rowselectrical_switchgear3 rowsinstrumentation_control_panel2 rowsmotor_control_center3 rowsnon_seismic1 rowpiping_small1 rowpump_active2 rowsqualification_by_analysis2 rowsqualification_by_experience1 row