Submarine cable

A technology of submarine cables and conductive layers, applied in the directions of submarine cables, insulated cables, cables, etc., can solve problems such as skin effect, increase in wire resistance, and increase in power loss.

Active Publication Date: 2021-12-10
ZHONGTIAN TECH SUBMARINE CABLE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The invention provides a submarine cable, which solves the problem in the prior art that when the submarine cable passes through an alternating current, the metal wire of the cable core will have a skin effect, which will increase the resistance of the metal wire and cause an increase in power loss.

Method used

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Embodiment Construction

[0053] The following describes in detail the embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary, and are intended to explain the present invention and should not be construed as limiting the present invention.

[0054] It should be understood that the following embodiments do not limit the execution order of each step in the method protected by the present invention. The individual steps of the method of the present invention can be performed in any possible order and can be performed in a cyclic fashion without conflicting each other.

[0055] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "length", "th...

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Abstract

The invention provides a submarine cable, and relates to the technical field of cables. The submarine cable comprises a plurality of core wires which are twisted together. Each core wire comprises a first metal wire and a conductive layer wrapping the first metal wire; and the conductivity of the conductive layer is greater than that of the first metal wire. Through the above arrangement, when the submarine cable is electrified by alternating current, the current concentrated on the surface part of the first metal wire is partially transmitted to the conductive layer, so that the through-current capability of the surface part of the first metal wire is improved, the alternating current resistance of the first metal wire is reduced, and the electric energy loss is reduced.

Description

technical field [0001] The invention relates to a submarine cable and belongs to the technical field of cables. Background technique [0002] Submarine cables are current-carrying equipment for power transmission on the seabed, and can be used for power supply to offshore drilling platforms, offshore islands, etc. Generally, submarine cables include submarine cable sections, landing cable sections, and joints connecting the submarine cable sections and landing cable sections. The submarine cable section refers to the part of the submarine cable located in the deep water section, and the landing cable section refers to the submarine cable located in the shallow water near the shore and the beach joint. part in between. [0003] In the related art, a submarine cable includes a cable core, an armor layer and an outer sheath. The cable core includes a plurality of twisted metal wires and a water-blocking medium filled in the twisted gap of the metal wires; the armor layer cove...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01B7/14H01B5/08H01B1/02H01B7/02H01B7/282H01B9/02
CPCH01B7/14H01B5/08H01B1/02H01B7/02H01B7/282H01B9/02Y02A30/14H01B7/17H01B7/285
Inventor 王丽媛薛驰王海洋胡明张洪亮赵囿林张一良王文超聂影孙艳雨杜强金星宇刘磊祝庆斌王海涛
Owner ZHONGTIAN TECH SUBMARINE CABLE CO LTD
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