What is Insulation Coordination?
Types of overvoltages and their causes

What is Insulation Coordination?

Definition in IEC 60071-1

Selection of the dielectric strength of equipment in relation to the operating voltage and overvoltage which can appear on the system for which the equipment is intended, and taking into account the service environment and the characteristics of the available preventing and protective devices.

Definition in IEEE C62.82.1

The selection of the insulation strength of equipment in relation to the voltages, which can appear on the system for which equipment is intended and taking into account the service environment and the characteristics of the available protective devices.