The transfer switches are required to meet the same criterion as for seismic and wind loads as the rest of the power system. They would also be required to undergo the IBC certification and should have a label stating the same.
Check for applicable exemptions. The following components
may be exempt from complying with the code:
• Mechanical and electrical components in seismic design category B.
• Mechanical and electrical components in seismic design category C provided that the component importance factor Ip = 1.0.
• Mechanical and electrical components in seismic design category D, E, F where the component importance factor is 1.0 and either:
a. Flexible connections between components and
associated ductwork, piping and conduit are provided.
b. Components are mounted at 4 feet (1.22 m) or less
above the floor level and weigh 400 lb (1780 N) or less.