1 Scope

This part of IEC 63522 provides guidelines for the insulation coordination of electromechanical elementary, solid state, time, forcibility guided and reed relays as well reed contacts and hybrid switching solutions. This document can also be used for similar devices when specified in a detail specification.

Either the test, measurement of creepages, clearances, solid insulation and insulation systems or combinations or all of them are carried out in conjunction with other parts of the IEC 63522 series.

The basis of the insulation coordination is given in the IEC 60664 series.