The Importance Of Epoxy Resin Insulators For Local Electric Field Control

In the design discussions of high-voltage equipment, high voltage standoff insulators has a significant impact on the distribution of the local electric field. The non-uniformity of the local electric field will form a charge accumulation region at the insulation interface. These variations in surface and bulk charge distribution alter the shape of the field lines and generate higher field strengths at certain locations.

The state of the local electric field largely determines the performance of high voltage epoxy under extreme conditions. As a high-dielectric-strength material, epoxy resin exhibits complex charge behavior both internally and on its surface. Charge accumulation and dissipation are significantly influenced by the material's resistivity and field orientation structure. Field distortion can induce partial discharge phenomena at the solid-gas interface.