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Power cable

A power cable and conductive core technology, applied in the field of power cables, can solve problems such as low environmental interference resistance, easy deformation of the cable, and influence on the normal operation of the cable

Inactive Publication Date: 2016-08-31
STATE GRID CORP OF CHINA +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Existing power cables are not highly resistant to environmental interference. Long-term or accidental extrusion and vibration can easily deform the cable and damage the structure, which may affect the normal operation of the cable.

Method used

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Embodiment Construction

[0017] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. All other embodiments obtained by persons of ordinary skill in the art based on the embodiments of the present invention belong to the protection scope of the present invention.

[0018] Such as figure 1 As shown, a power cable according to an embodiment of the present invention includes several conductive cores 1, which are characterized in that the outside of the conductive core 1 is wrapped with an insulating layer 2; The core 1 is isolated by an insulating spacer 3, and the number of feet of the spacer 3 is the same as that of the conductive core 1; the spacer 3 is externally connected with a first protective cover 5, and the first protective cover 5, the insulatin...

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Abstract

The invention discloses a power cable comprising a plurality of conductive cores. Insulating layers coat the outer sides of the conductive cores. The multiple conductive cores coated with the insulating layers are isolated by an insulating isolation rack, wherein the feet number of the isolation rack is identical with the number of the conductive cores. A first protection sleeve is connected outside the isolation rack. The space among the first protection sleeve, the insulating layers. And the isolation rack is filled with fillers. A second protection sleeve is arranged at the outer side of the first protection sleeve; and solid supports having hub structures are arranged between the first protection sleeve and the second protection sleeve uniformly in segmented mode. The power cable has the following beneficial effects: with the insulating isolation rack, insulating between all conductive cores can be realized well; on the basis of the external hub structures, good vibration-resistant and compression-resistant performances are realized; and insulation between the cable and the external world is realized well by using the two layers of protection sleeves.

Description

technical field [0001] The invention relates to the technical field of electric wires and cables, in particular to a power cable. Background technique [0002] Power cables are cables used to transmit and distribute electric energy. They are often used in urban underground power grids, outgoing lines of power stations, internal power supply of industrial and mining enterprises, and underwater transmission lines across rivers and seas. This requires very high requirements for the structure and performance of cables. In power lines, the proportion of cables is gradually increasing. Existing power cables are not highly resistant to environmental interference. Long-term or accidental extrusion and vibration can easily deform the cable and damage the structure, which may affect the normal operation of the cable. [0003] Aiming at the problems in the related technologies, no effective solution has been proposed yet. Contents of the invention [0004] Aiming at the above-menti...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01B7/02H01B7/18H01B7/40H01B9/00
CPCH01B9/00H01B7/02H01B7/0216H01B7/184H01B7/40
Inventor 黄远洋张学阳徐健达霍威王卓章程
Owner STATE GRID CORP OF CHINA
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