IEEE 693TM-2018, Recommended Practice for Seismic Design of Substations
The recommended practice contains recommendations for the seismic design of substation buildings and structures, and the seismic design and qualification of substation equipment.
This recommended practice is for new substations and planned additions or improvements to existing substations. It is not intended that existing substations must be retrofitted to these recommended practices. Instructions on how to include this recommended practice in specifications are provided.