An insulated high voltage power cable

A high-voltage power and cable technology, which is applied in the direction of power cables, insulated cables, and power cables with shielding layers/conductive layers, etc., can solve problems such as inconvenient centralized fixing, unfavorable installation and fixing, cumbersome procedures, etc., and reduce the shielding inhibition coefficient , Good shielding of external magnetic field, improve the effect of shielding effect

Active Publication Date: 2022-01-25
西部电缆陕西有限公司
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  • Abstract
  • Description
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Problems solved by technology

[0003] However, the existing high-voltage XLPE insulated power cables have a single variety, only aluminum sheaths and lead sheaths. At the same time, the existing underground cables are inconvenient to be fixed centrally. Every time a new cable is added, the process is cumbersome, which is not conducive to fast For installation and fixing, we propose an insulated high-voltage power cable to solve the above problems

Method used

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  • An insulated high voltage power cable
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Embodiment Construction

[0035] 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.

[0036] refer to Figure 1-9 , an insulated high-voltage power cable, including a cable core 1, the cable core 1 is composed of a plurality of copper wires layered and twisted and tightly pressed, and semi-conductive resistance water tape or water-blocking yarn is embedded between each layer of wires, The semi-conductive resistance water belt or water-blocking yarn can play a good role in binding and fixing, and can fix multiple copper wires into a whole, strengthen the structural strength, and ensure the stability of its conduction current.

[0037] In the present invention, the cable core 1 is coated with an insulating layer 2, and the insulating layer 2 is coated o...

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Abstract

The invention discloses an insulated high-voltage power cable, which comprises a cable core, the cable core is coated with an insulating layer, the insulating layer is coated with a metal inner sheath, and the metal inner sheath is coated with There is a semi-conductive nylon tape, the semi-conductive nylon tape is covered with an insulating shielding layer, the insulating shielding layer is covered with a copper wire sparsely wound shielding layer, and the copper wire sparsely wound shielding layer is covered with a semiconductive The buffer water-blocking tape, the semi-conductive buffer water-blocking tape is coated with a metal armor layer. The invention can improve the protection ability of the cable and its anti-interference ability, and at the same time avoids the use of traditional aluminum sleeves and lead sleeves, better improves the quality of the cable, improves the competition period of the enterprise, and also sets the The installation device is convenient for its installation in the underground pipe gallery, and at the same time, it is convenient for quickly adding new cables, which can improve the efficiency of installation, and can well comb the cables for easy maintenance.

Description

technical field [0001] The invention relates to the technical field of power cables, in particular to an insulated high-voltage power cable. Background technique [0002] Underground cables refer to cables that are often buried underground compared with common overhead lines, so they are also called underground cables. A cable is a wire made of one or more mutually insulated conductors surrounded by an insulation and a protective layer, and is used to transfer power or information from one place to another. After entering the modern society, due to the shortage of urban land, heavy traffic pressure, city appearance construction and other reasons, large cities generally adopt underground cable transmission. Compared with overhead lines, cables have the advantages of small footprint, reliable power transmission, and strong anti-interference ability. [0003] However, the existing high-voltage XLPE insulated power cables have a single variety, only aluminum sheaths and lead s...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01B7/18H01B7/20H01B7/22H01B7/28H01B7/282H01B7/29H01B7/295H01B9/02H01B3/28H02G3/30H02G9/06
CPCH01B7/18H01B7/1875H01B7/22H01B7/20H01B7/295H01B7/29H01B7/2825H01B7/28H01B9/02H01B9/025H01B9/023H01B3/28H02G3/30H02G9/06
Inventor 唐荣林
Owner 西部电缆陕西有限公司
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