Research On The Test Method Of Resistance Performance Of Epoxy Resin Insulator
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It is recommended to use a 5000V megohmmeter to measure the high voltage standoff insulators insulation resistance of 35-220kV overhead transmission lines.
Insulation resistance qualified standards
(1) The insulation resistance of a newly installed high voltage epoxy should be greater than or equal to 500MΩ.
(2) The insulation resistance of a epoxy resin insulator in operation should be greater than or equal to 300MΩ.
Principles for judging high voltage epoxy resin deterioration
(1) If the insulation resistance of high voltage standoff is less than 300MΩ and greater than 240MΩ, it can be judged as a low-value epoxy resin insulator.
