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Underground high voltage power lines

一种高压电力、电力线的技术，应用在地下管道中的电缆安装、电缆配件、电气元件等方向，能够解决连接电缆成本高、安装成本高、费时和费钱等问题

Inactive Publication Date: 2019-06-25
NEXANS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This operation is laborious, time consuming and expensive for line operators
[0011] Finally, these connecting cables are costly, as are their installations
The concrete shafts that house the cabinets are also expensive to manufacture and install

Method used

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  • Underground high voltage power lines
  • Underground high voltage power lines
  • Underground high voltage power lines

Examples

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Embodiment Construction

[0026] As specified in patent document EP 2 541 712 and figure 1 As shown in , the underground three-phase high-voltage power line includes three-phase conductive cables 2, and each conductive cable is composed of a series of cable parts 3a, 3b interconnected by cross-connection points 4. The underground three-phase high-voltage power line includes connections to the first The shielding layer of the cable part 3a and the connection interface 7 of the shielding layer of the second counter-cable part 3b. A module 6 with a joint extension box and equipped with an additional connection interface 8 is connected preferably by plug-in to the connection interface 7 of the main structure 5 of each joint.

[0027] figure 2 It shows the form of the module of the present invention after removing the box. The arrester 10 is arranged in the module 6 and is connected mechanically and electrically to the module's additional connection interface 8 .

[0028] Mounted on this connection inte...

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PUM

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Abstract

The invention relates to an underground three-phase high-voltage power line comprising three-phase conductive cables each of which consists of a series of cable parts (3a, 3b) interconnected by cross-connection points (4), Comprising a connection interface (7) connected to the shield of the first cable part (3a) and the shield of the second mating cable part (3b), and having a contact extension box (14) equipped with a connection to each contact The interface (7) is additionally connected to the module (6) of the interface (8). According to the invention, a lightning arrester (10) is arranged in said module (6) and is electrically connected to said additional connection interface (8) of the module, said lightning arrester (10) being equipped with a device for monitoring its connection to the signal generator (16) Means for conditions in said box (14).

Description

technical field [0001] The invention relates to an underground high-voltage power line. Background technique [0002] This type of three-phase line generally consists of three-phase conductive cables, each cable consisting of a series of cable sections interconnected by cross-connection points. [0003] A circuit of this type is described in patent document EP 2 541 712 . [0004] Three coaxial connection cables originating from three points in the same zone are connected to a cabinet with three switchable coaxial channels. This cabinet is also underground and is located near the lines in the area affected by the junction. Therefore, it is possible to accommodate surge protectors or surge arresters in this cabinet, the function of which is to limit any overvoltage on the cross-connection of the contacts. [0005] This cabinet is generally placed in a concrete shaft. [0006] According to the solution of this document, the main structure of all contacts is identical and h...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01R1/20G01R1/24
CPCH02G9/06H02G15/1055H02G9/00H02G13/80
Inventor D.杜波伊斯M.亨里克森J-S.里姆博尔特
Owner NEXANS
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