Method for forming insulating layer on overhead power transmission line

An overhead transmission line and insulating layer technology, applied in conductor/cable insulation, coating, epoxy coating, etc., can solve the problem of easy loosening of tapes, and achieve the effect of simple construction, good insulation and waterproofing

Active Publication Date: 2013-09-18
3M CHINA
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  • Abstract
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Problems solved by technology

One method is to wrap the high-voltage overhead transmission line with insulating tape, however, due

Method used

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  • Method for forming insulating layer on overhead power transmission line
  • Method for forming insulating layer on overhead power transmission line

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Embodiment Construction

[0024] The technical solutions of the present invention will be further specifically described below through embodiments and in conjunction with the accompanying drawings. The following description is intended to explain the general concept of the present invention and should not be construed as a limitation.

[0025] see figure 1 and figure 2 . According to the present invention, a method for forming an insulating layer on an overhead transmission line 100 comprises: painting a solvent-free coating (preferably a fast-curing solvent-free coating) on ​​the transmission line to form a first coating 102; After 102 is semi-dry or dry, wind an electrical insulating tape on the first coating 102 to form a tape layer 104 ;

[0026] According to the present invention, the solvent-free coating used for the first coating 102 can be selected from one of epoxy, silicone or polyurethane organic solvent-free coatings. Applicable epoxy or polyurethane solvent-free coatings contain a bas...

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Abstract

The invention provides a method for forming an insulating layer on an overhead power transmission line. The method includes painting solventless coatings on the power transmission line to form a first coating, winding an electric insulating rubber tape on the first coating to form a rubber tape layer after the first coating is half-dry or dry, and painting the solventless coatings on the rubber tape layer to form a second coating. Gaps among guide lines of the overhead power transmission line are filled, and the rubber tape and the coatings are provided to form the insulating layer, so that good insulating and waterproof effects are realized.

Description

technical field [0001] The invention relates to the protection of overhead transmission lines, in particular to a method for forming an insulating layer on overhead transmission lines. Background technique [0002] High-voltage overhead transmission lines usually need to keep a certain safe distance from the surrounding environment. However, due to the growth of trees and the habitat of birds, there is still a danger of discharge to the ground, which will bring danger to the surrounding environment and personnel, and may also cause line faults such as tripping. . [0003] There have been some proposals to try to solve this problem, for example, providing insulation protection for high voltage overhead transmission lines. One method is to wrap the high-voltage overhead transmission line with insulating tape. However, due to the influence of moisture in the environment, sunlight exposure, etc., the tape is easy to loosen. [0004] Chinese patent ZL200820199271.4 provides a t...

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Application Information

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IPC IPC(8): H01B13/16H01B13/08C09D175/14C09D175/08C09D7/12C09D163/00C09D183/04C09D175/04
Inventor 王天德
Owner 3M CHINA
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