Patent ID: 9196396
Filing Date: 2015-11-24
Classification: H01B

Abstract:
1. An insulator, comprising an upper disk, the upper disk comprising an insulating surface, wherein an exposed part of the insulating surface is applied with a conductive coating having a specific resistivity, wherein a main material of the conductive coating is conductive silicone rubber, the conductive coating being applied at a lower surface of the upper disk, and a conductive coating region having the specific resistivity and a nonconductive coating region are configured such that in a dry environment, no continuous conductive channel exists between fittings at end portions of the insulator, and due to a leakage current caused by the conductive coating having the specific resistivity on the insulating surface in an icing climate condition, the insulating surface reaches an ice-resisting temperature, the insulator is a disk shaped suspension-type insulator, and a position of applying the conductive coating is selected from regions other than regions adjacent to an upper fitting of the insulator; the nonconductive coating region is applied with room temperature vulcanized (RTV) silicone rubber or permanent RTV (PRTV) silicone rubber.