Method for recoating RTV anti-pollution flashover coating on insulator coated with RTV anti-pollution flashover coating

US9875829B2 · kind B2 · utility

Assignees

• STATE GRID SHANXI PROVINCE ELECTRIC POWER COMPANY JINZHONG SUPPLY COMPANY · CN
• Graduate School at Shenzhen, Tsinghua University · CN

Inventors

• Xuedong Zhang · Tangxia, CN
• Ling Liu · Shanghai, CN
• Hongwei Wang · Suzhou, CN
• Liang'an Yao · Shanxi, CN
• Qiang Xie · Shanghai, CN
• Kai Sun · Shanxi, CN
• Jingzhao Lu · Shanxi, CN
• Zhidong Jia · Nanhu, CN
• Can Hua Chen · Tangxia, CN

Key dates

• Filing date: Jun 1, 2016
• Grant date: Jan 23, 2018
• Expiry date: Jun 1, 2036

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B05D2201/00
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

Disclosed is a method for recoating an RTV anti-pollution flashover coating on an insulator coated with the RTV anti-pollution flashover coating. The insulator includes an insulator body, a steel cap connected to an upper surface of the insulator body, and a steel pin connected to a lower surface of the insulator body. The method includes: (1) wiping off dirt on a surface of the insulator; (2) determining whether the insulator can be recoated; (3) performing coating by using an RTV anti-pollution flashover coating with the content of solid being 55%-65%. After coating is performed, a newly coated anti-pollution flashover coating can be closely adhered to a surface of the insulator, swelling does not occur, adhesion of the coating with respect to the insulator is not reduced, the hydrophobicity of the surface is recovered, and non-reduction of a pollution flashover voltage of the insulator is ensured.