The Actual Flashover Path Of A Wedge-type Tension Clamp Occurs In The Gap Between The Insulator And The Air.

In the electrical environment formed by ab cable dead end clamp and the tension insulator string, the electric field distribution is not concentrated on the abc dead end clamp metal component itself, but forms a dynamic field strength gradient between the insulator surface and the surrounding air. Because the interface between the insulator surface and the air has significantly different dielectric constants, this interface becomes the location where the electric field is most easily enhanced under high voltage, thus causing the flashover circuit to deviate from the traditional understanding of dead end clamp for ab cable and shift towards the gap region between the insulator and the air. This type of electric field distortion phenomenon has also been repeatedly observed in online electrical tests of high-voltage mechanical tension clamps and has become an important parameter for evaluating tension performance.