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Cable intermediate joint installation method and expansion device

A technology for cable intermediate joints and intermediate joints, which is applied in the direction of cable joints, conductive connections, and electrical component connections. It can solve the problems of easy-adhesive decarbonization particles, etc., and achieve the effects of reducing the difficulty of installation work, improving installation efficiency, and moving smoothly.

Pending Publication Date: 2020-12-22
CHANGLAN CABLE ACCESSORIES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For this reason, the present invention proposes a cable intermediate joint installation method, which solves the problem that the intermediate joint is easy to adhere to decarbonized particles during the installation process

Method used

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  • Cable intermediate joint installation method and expansion device
  • Cable intermediate joint installation method and expansion device
  • Cable intermediate joint installation method and expansion device

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Embodiment Construction

[0036] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention.

[0037] In the description of the present invention, if there are descriptions of first, second, third, fourth, etc., it is only for the purpose of distinguishing technical features, and it cannot be understood as indicating or implying relative importance or implicitly indicating the indicated The number of technical features or implicitly indicates the sequence of the indicated technical features.

[0038] In the description of the present invention, unless otherwise clearly defined, terms such as setting and connecting should be unders...

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PUM

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Abstract

The invention discloses a cable intermediate joint installation method and an expansion device. The cable intermediate joint installation method comprises the following steps of: opening and keeping one end of an intermediate joint in a supporting state; attaching an isolation layer to the fracture of an insulation shielding layer of the first cable; sleeving the intermediate joint on the first cable until the insulating layer of the first cable is exposed at the other end of the intermediate joint; connecting the first cable with another second cable which needs to be butted; pulling the intermediate joint in the direction from the first cable to the second cable until the insulating layers of the first cable and the second cable enter the interior of the intermediate joint; and removingthe isolation layer from the first cable. According to the method provided by the embodiment of the invention, one end of the intermediate joint is expanded, so that the penetration difficulty of thefirst cable is reduced. By arranging the isolation layer on the port of the insulation shielding layer of the first cable, decarburization particles on the insulation shielding layer can be effectively prevented from falling into the intermediate joint.

Description

technical field [0001] The invention belongs to the field of high-voltage power cables, and in particular relates to a cable intermediate joint installation method and an expansion device. Background technique [0002] With the construction of urbanization and the sharp increase in electricity demand, there are more and more long-distance high-voltage transmission constructions, and the demand for cable accessories is also increasing. In cable accessories, intermediate joints for cable butt joints are unavoidable and need to be used in large quantities. [0003] For the intermediate joints of high-voltage power cables, there are generally two installation methods, one is pre-expansion, and the other is sliding installation. When using slip-on installation, during the installation process, the main body of the intermediate joint will be in direct contact with the insulating shielding layer of the cable, and the decarbonized particles on the insulating shielding layer of the ...

Claims

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Application Information

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IPC IPC(8): H02G1/14H02G15/08H02G15/18H01R11/09
CPCH02G1/14H02G15/08H02G15/18H01R11/09
Inventor 李绍斌彭勇唐文博周海刘春春
Owner CHANGLAN CABLE ACCESSORIES
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