International Standards and Conformity Assessment for all electrical, electronic and related technologies

TC 109

Insulation co-ordination for low-voltage equipment


TC 109 Scope

TC 109

To prepare International Standards on the principles of insulation coordination applicable to all low-voltage equipment

To provide IEC Technical Committees with :

- rules for the determination of voltage ratings for insulation coordination and

- physical data for dimensioning of insulations to given voltage ratings

Horizontal Safety Function:

Insulation coordination for voltages up to and including 1000 V a.c. and 1 500 V d.c., including dimensioning of clearances, and creepage distances and requirements for solid insulation with respect to insulation coordination. This includes all methods of dielectric testing with respect to insulation coordination.

Further information

Strategic Business Plan
pdf file
TC 109 Officers