Corrosion-resistant and string-breaking-resistant alternating-current insulator steel foot

Abstract

The invention discloses an alternating-current insulator steel foot resistant to corrosion and string breakage. The alternating-current insulator steel foot comprises a porcelain piece. The steel pin is arranged on the inner side of the porcelain piece; the anti-corrosion piece is arranged on the outer wall of the steel foot; the anti-corrosion piece changes electric field distribution on the surface of the steel foot, electrochemical corrosion is reduced, the anti-corrosion piece comprises multiple sets of protruding blocks, and the multiple sets of protruding blocks are annularly arranged in the circumferential direction of the outer wall of the steel foot. According to the device, the contact path of a corrosive medium is changed through the oval protruding blocks, stress distribution is improved through the oval protruding blocks, the stress concentration risk is reduced through the oval protruding blocks, electric field distribution is optimized through the protruding blocks, it is ensured that the insulation performance is stable in the high-voltage environment, physical sealing is formed at the root through the silicone rubber coating, the path that moisture and salt mist permeate along the surface of the steel foot is blocked, and corrosion is effectively prevented.

Images