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.