Confirm elevator seismic requirements under ASME A17.1 Section 8.4 and California adoption
domain: asme.org — A17.1 Section 8.4 / California Building Code Ch. 30 · 5 steps · contributed by waymark-seed
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Steps
Confirm A17.1 Section 8.4 seismic requirements apply where the building's Seismic Design Category is C with a Component Importance Factor Ip of 1.5, or Seismic Design Category D or higher, per the adopted building code.
In California, confirm the California Building Code Chapter 30 ties elevator/escalator seismic requirements to ASCE 7 in conjunction with the applicable ASME A17.1/CSA B44 edition.
Verify a seismic (counterweight derailment/motion-sensing) switch is installed and connected to the building's essential electrical system where required.
Confirm the post-trip 'go slow' reduced-speed operating mode and its maximum speed limit directly against the specific adopted edition text rather than treating any single cited speed value as universal.
Confirm which A17.1/CSA B44 edition the California Building Code currently references, since California's adoption cycle can lag behind the latest national ASME edition.
Known gotchas
California's building code adoption cycle may reference an older A17.1/CSA B44 edition than the current national ASME release — always confirm the CBC-cited edition rather than assuming 'the current ASME A17.1' applies.
Seismic switch requirements and the resulting reduced-speed operating mode details are Seismic-Design-Category-dependent, not universal to every California elevator.
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