Method for repairing composite insulator testing sampling part

A technology of composite insulators and insulators, applied in the direction of overhead lines/cable equipment, etc., can solve problems such as replacement or repair, composite insulators can not meet the requirements of normal operation, etc., to avoid power outages, excellent water repellency and water mobility, Reduce the effect of grid investment

Inactive Publication Date: 2014-01-29
STATE GRID CORP OF CHINA +1
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Problems solved by technology

[0003] The invention provides a method for repairing the test sampling part of the composite insulator, aiming to solve the problem that a large-area defect appears on the surface of the composite insulator after the sample collection and sampling on the surface of the composite insulator, so that the composite insulator cannot meet the requirements of normal operation. , problems requiring replacement or repair

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  • Method for repairing composite insulator testing sampling part

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[0029] In order to make the purpose, technical solution and advantages of the present invention more clear, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the invention.

[0030] figure 1 The implementation flow of the method for repairing the test sampling part of the composite insulator provided by the embodiment of the present invention is shown.

[0031] The method includes the following steps:

[0032] Step S101, cleaning up the test sampling part of the composite insulator;

[0033] After sampling the surface of the insulator with a special tool for sample collection on the surface of composite insulators, small burrs will be formed at the sampling place. The burrs need to be removed with a wallpaper knife, and the sampling part should be polished with sandpaper ...

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Abstract

The invention discloses a method for repairing a composite insulator testing sampling part. The method includes: cleaning the composite insulator testing sampling part, evenly coating RTV coatings on the composite insulator testing sampling part, and curing the RTV coatings coated on the composite insulator testing sampling part at normal temperature. The method has the advantages that the RTV coatings are used to repair the surface of the composite insulator testing sampling part, and a new surface with excellent performance can be formed on a composite insulator; the dielectric constants of the RTV coatings and the materials of the composite insulator are identical, the two are even in electric field distribution, and local electric field intensity concentration can be avoided; by the RTV coatings, the repaired composite insulator is excellent in hydrophobicity and hydrophobicity mobility, and safe and stable operation of the composite insulator is guaranteed; the repairing of the composite insulator can be performed without shutting down power supply, the problem that traditional composite insulator replacement needs to shut down power supply is solved, power failure caused by line maintenance can be avoided, and operation reliability of a power grid is increased.

Description

technical field [0001] The invention belongs to the technical field of repairing composite insulators, and in particular relates to a method for repairing a test sampling part of a composite insulator. Background technique [0002] In order to evaluate the service life of composite insulators in operation, it is necessary to conduct a series of tests on the umbrella group surface of composite insulators. A patent has been invented for a special tool for collecting surface samples of composite insulators. This tool can be used to conveniently In the case of a composite insulator, cut a test piece (area 5cm*5cm, thickness 2mm) that meets the test requirements from the surface of the composite insulator umbrella group. However, after sampling, a large-area defect appeared on the surface of the composite insulator, which could no longer meet the requirements of normal operation and needed to be replaced or repaired. Contents of the invention [0003] The invention provides a ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02G1/02
Inventor 田明辉吴明雷王永福刘宝成郗晓光满玉岩王楠
Owner STATE GRID CORP OF CHINA
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