Measuring The Insulation Resistance Of Glass Insulators

dead end insulators Insulation resistance less than 240MΩ can be determined as zero value dead end suspension insulators.
Composite polymer deadend insulator insulation is generally not tested porcelain dead end insulators by this method.
Causes of deterioration of disc-type suspension suspension insulator
(1) Temperature influence. Temperature has a great influence on suspension composite insulator insulation resistance. Insulation resistance decreases with increasing temperature. The reason is that as temperature rises, composite suspension insulator polarization of the insulating medium intensifies, and the increase in conductivity causes polymer suspension insulator resistance to decrease. The reason for the change is related to the degree of temperature change and the properties and structure of the suspension type insulator material.