Switchboard Seismic Ratings

Definitions:

• Ip = Importance Factor

• OSHPD = California's Office of Statewide Health Planning and Development

Selections:

• CBC\IBC 2015 Ip = 1.0 – The structure will survive a seismic event – This is for a typical commercial job.

• CBC\IBC 2015 Ip = 1.5 – The equipment will be in working condition after a seismic event – This is typical for a hospital or critical power job.

• OSHPD – Requirement for hospitals in California, where shake test required.