Dielectric Withstand

The ability of insulating materials and spacing’s to withstand specified overvoltage’s for a specified time (one minute unless otherwise stated) without flashover or puncture.

Dielectric Test

A test that is used to verify an insulation system. A voltage is applied of a specific magnitude for a specific period of time.

Dielectric Strength

The maximum voltage an insulation system can withstand before breakdown, expressed in volts per mil of insulation thickness.