ASTM D150 A C-Loss (Dissipation Factor) and Dielectric Constant (Permittivity) of Electrical Insulating Material
The ability of a lubricant to act as an electrical insulator can be measured using this test procedure. Since no insulator is perfect, the amount of electrical leakage (Dissipation Factor) will determine the degree of efficiency of insulating ability. The Dielectric Constant is a measure of the insulator's ability to resist electrical flow under increasing frequency. Together these properties help predict how the material will perform under various conditions of electrical exposure.
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