Water tight cable for beach

A waterproof cable and beach technology, applied in the field of wire and cable, can solve problems such as short service life of cables, corrosion of outer sheath and internal components of cables, and reduced safety and reliability of cables

Inactive Publication Date: 2013-11-20
夏航
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  • Summary
  • Abstract
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  • Application Information

AI Technical Summary

Problems solved by technology

[0004] 1. Due to the medium voltage power cables laid in coastal tidal areas, they may be periodically or frequently soaked in seawater, while ordinary medium voltage power cables do not have superior radial and longitudinal water resistance properties, causing water vapor to penetrate into the insulation , and the presence of water vapor in the XLPE insulation can easily cause water tree breakdown, which ultimately greatly reduces the safety and relia

Method used

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  • Water tight cable for beach

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Embodiment Construction

[0016] The present invention will be further described below through specific embodiments and in conjunction with the accompanying drawings.

[0017] Such as figure 1 , a waterproof cable for the beach, which includes a cable core located in the middle of the cable, the cable core is formed by twisting a plurality of wire cores, and the wire core is composed of a conductor 1 and a conductor shielding layer 2 arranged outside the conductor 1 in sequence, Composed of insulating layer 3, insulating shielding layer 4, semiconductive tape layer 5 and metal shielding layer 6; a filling layer 7 is provided between the cable cores, and a tape layer 8 and a metal tape armor layer 9 are sequentially arranged outside the cable core , Waterproof inner sheath 10, waterproof outer sheath layer 11. The conductor 1 is a high compacted round stranded conductor with a compaction coefficient above 0.92, and a water-blocking yarn is added between the stranded copper wires.

[0018] The metal ta...

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PUM

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Abstract

The invention discloses a water tight cable for a beach, which comprises a cable core positioned in the middle of the cable, the cable core is formed by hinging a plurality of wire cores, and each wire core is composed of a conductor and a conductor screen layer, an insulating layer, an insulating screen layer, a semi-conductive belting layer and a metal screen layer arranged outside the conductor in sequence; a packing layer is arranged between the cable cores, and a belting layer, a metal armor layer, a water proof inner protecting sleeve and a water proof outer protecting sleeve are arranged outside the cable core in sequence. The cable adopting the structure provided by the invention is provided with better water blocking performance, better corrosion resisting performance, and higher safety performance, and the cable is used for power transporting line in beach area.

Description

[0001] technical field [0002] The invention relates to the field of electric wires and cables, in particular to a waterproof cable for beaches. Background technique [0003] At present, in the wind farms in my country's offshore areas and some other occasions in coastal areas, the medium-voltage power cables used for power transmission are generally ordinary medium-voltage power cables. However, ordinary medium-voltage power cables are exposed during use as follows: question: [0004] 1. Due to the medium voltage power cables laid in coastal tidal areas, they may be periodically or frequently soaked in seawater, while ordinary medium voltage power cables do not have superior radial and longitudinal water resistance properties, causing water vapor to penetrate into the insulation , and the presence of water vapor in the XLPE insulation can easily cause water tree breakdown, which ultimately greatly reduces the safety and reliability of the cable. [0005] 2. There are a lo...

Claims

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Application Information

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IPC IPC(8): H01B7/282H01B7/285
Inventor 夏航
Owner 夏航
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