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Wire insulating coating and method for live line coating of wire insulating coating

A wire insulation and coating technology, which is used in conductor/cable insulation, antifouling/underwater coatings, polyurea/polyurethane coatings, etc., can solve the problems of cumbersome process, high risk of live work, complex robot mechanical structure and control program, etc. problems, to avoid safety risks, improve hydrophobicity and anti-fouling performance, and improve convenience

Active Publication Date: 2020-06-30
STATE GRID HUNAN ELECTRIC POWER +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Liu Wenbo, Li Jipan, Jiang Shenchen and others have all conducted research on line insulation paint spraying robots, but the mechanical structure and control procedures of the robots are complex, and the risk of live work is high
The UAV coating construction disclosed in some documents is also limited to spraying construction, and the process is cumbersome.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] A wire insulation coating of the present invention, specifically a two-component fast self-curing wire insulation coating, comprising A component and B component, A component is composed of isocyanate MDI 50 and polyether polyol N220, isocyanate MDI 50 and poly The mass ratio of ether polyol N220 is 50:50, component B consists of amino-terminated polyether D 2000, chain extender E100, porous Al 2 o 3 Powder and room temperature vulcanized silicone rubber, amino-terminated polyether D 2000, chain extender E100, porous Al 2 o 3 The mass ratio of powder and RTV silicone rubber is 60:25:10:5.

[0029] In this example, 02 o 3 The particle size of the powder is ≤100 microns, and the average particle size is 50 microns.

[0030] In this embodiment, room temperature vulcanized silicone rubber is filled in the voids of the porous metal oxide powdery filler, and the voids include the porous structure of the porous metal oxide powdery filler and the particle gaps of the porous...

Embodiment 2

[0035] A method for electrically-charging coating wire insulating coating of the present invention, using the wire insulating coating prepared in Example 1, the construction process is as follows: the wire insulating coating is carried by a drone, and the coating construction is carried out on the transmission wire by brushing .

[0036] In this embodiment, the UAV adopts DJI T20, and the UAV is equipped with an automatic hovering device (high-precision hovering device or laser guidance device) and coating equipment. And coating equipment a total of 20 kg. The UAV can fly directly above the wire and keep a constant distance from the wire through the existing spatial coordinates of the wire, or through its own laser guidance device, and can also provide the propulsion device and control for the storage tank of the insulating coating in the coating equipment. The device provides electric energy, and can also set the starting point and end point of the live coating construction ...

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PUM

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Abstract

The invention discloses a wire insulating coating and a method for live line coating of the wire insulating coating. The wire insulation coating comprises a component A and a component B, wherein thecomponent A is mainly composed of one or more of polyols, acrylates, isocyanates, isocyanate prepolymers and isocyanate modifiers, the component B is mainly composed of polyethers, porous metal oxidepowder fillers and room temperature vulcanized silicone rubber, the component A and the component B are separately stored, and the components are mixed during use to obtain the wire insulation coating. The method for live line coating of the wire insulating coating comprises the step that the wire insulating coating is adopted to conduct coating construction on power transmission wires in a brushcoating mode. The wire insulating coating has the advantages of short curing time, favorable film-forming property, compatible and excellent film adhesive force, favorable insulativity, favorable heatdissipation property, favorable weather resistance, favorable hydrophobicity and favorable stain resistance, and the coating method is convenient, practical and convenient.

Description

technical field [0001] The invention belongs to the technical field of electrical insulation materials, and relates to a wire insulating coating and a method for applying the insulating coating to a wire, in particular to an insulating coating for an overhead bare wire and a live insulation transformation method. Background technique [0002] Transmission conductors in the form of overhead power lines are the main form of power transmission. There are two common types of low-voltage overhead lines: overhead bare wires and overhead insulated wires. Among them, due to the advantages of strong heat dissipation and low price, the overhead bare wire is widely used in the erection of distribution lines in the field. However, the overhead wire has no sheath, and the wire is directly exposed in the air. Other objects that may touch the overhead line are close to or even in contact with the transmission wire, which has many adverse effects on safe and efficient power supply. In ord...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D175/08C09D183/04C09D5/16C09D5/25C09D7/61C09D7/65C08G18/76C08G18/66C08G18/48C08G18/50C08G18/32H01B13/06H01B13/16
CPCC08G18/324C08G18/48C08G18/5024C08G18/6685C08G18/7671C08K2201/003C09D5/1662C09D5/1687C09D175/08H01B13/065H01B13/16C08L83/04C08K7/24
Inventor 周舟周卫华曾庆华吴俊杰龚尚昆万代万涛刘凯
Owner STATE GRID HUNAN ELECTRIC POWER
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