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Cable penetration protection device

A protection device, wall penetration technology, applied in electrical components and other directions, can solve problems such as damage to cables

Active Publication Date: 2018-02-23
STATE GRID CORP OF CHINA +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The present invention aims to provide a cable wall protection device to solve the problem of cable damage due to eddy current heating in the prior art

Method used

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  • Cable penetration protection device
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Embodiment Construction

[0019] It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and examples.

[0020] Such as figure 1 with figure 2 As shown, the cable wall penetration protection device of the embodiment of the present invention includes a protection tube 1 , and the protection tube 1 includes a protection tube body 11 and a first non-magnetic conductor 12 . The protection tube body 11 defines a gap extending from the first end of the protection tube body 11 to the second end of the protection tube body 11 . The first non-magnetic conductor 12 is disposed in the gap and connected to both sides of the gap to close the protective tube body 11 .

[0021] In this embodiment, by opening a gap extending from the first end of the protection tube body 11 to the second end of the protection...

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Abstract

The invention provides a cable penetration protection device. The cable wall protection device includes a protective tube, and the protective tube includes: a protective tube body, and a gap extending from the first end of the protective tube body to the second end of the protective tube body is opened on the protective tube body; the first non-magnetic conductor, the first The non-magnetic conductor is arranged in the gap and connected with both sides of the gap to seal the protective tube body. Applying the technical scheme of the present invention, the first non-magnetic conductor is arranged on the protective tube to prevent the formation of a closed magnetic circuit in the circumferential direction of the protective tube, which solves the problem of cable damage caused by eddy current heating in the prior art.

Description

technical field [0001] The invention relates to a cable penetration protection device. Background technique [0002] In the prior art, a single-core cable with a small transmission capacity uses a protective tube to pass through the wall at the tunnel interface. The flanges on both sides of the protection tube are also made of ordinary steel. However, ordinary steel pipes and flanges will cause a closed magnetic circuit, and eddy currents will be generated at the protection tubes and flanges to generate heat, which will damage the cables to a certain extent. Contents of the invention [0003] The invention aims to provide a cable penetration protection device to solve the problem in the prior art that the cable is damaged due to eddy current heating. [0004] In order to achieve the above object, the present invention provides a cable wall protection device. The cable wall protection device includes a protection tube. The protection tube includes: a protection tube body....

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02G3/22
Inventor 曹昊煜
Owner STATE GRID CORP OF CHINA