5. IEC Standards Overview · Page 4 of 6
Selection & Application Guidance
Standards help you place the right SPD at the right location.

Location classes
Standards thinking maps SPDs to locations: entrance, distribution, and equipment vicinity.
Coordination
Energy coordination between stages prevents the downstream device from taking damage meant for the upstream device.
Documentation
Keep datasheets, coordination statements, and single-line diagrams with SPD locations in the O&M manual.
