Preventive maintenance test with insulation resistance test

Periodic testing is the best approach for preventive maintenance of electrical equipment and charting result values helps in monitoring the trend of the insulation resistance, which helps predict the future need for action. This article describes the insulation resistance testing method commonly used for preventive maintenance activities. However, you should consult the original product/ equipment manufacturer for more detailed information.
Author(s):  Sook-Wai Wong
Issue:  KIPiS 2015 #1