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Power cable for nuclear power plant

A technology for power cables and nuclear power plants, used in the field of power cables for nuclear power plants, can solve problems such as poor weather resistance and low wear resistance, and achieve the effects of strong adaptability to the environment, enhanced electrical performance, and good anti-interference performance.

Active Publication Date: 2011-08-10
SHANGDONG HUALING CABLE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the current problems of poor weather resistance and low wear resistance of power cables used in nuclear power plants, and to provide a power cable for nuclear power plants with the advantages of simple structure, convenient use, and effective improvement of the weather resistance of cables.

Method used

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  • Power cable for nuclear power plant
  • Power cable for nuclear power plant

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Embodiment Construction

[0013] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0014] figure 1 Among them, a power cable for nuclear power plants, which includes a multi-core group conductor 1, the outer wall of each conductor 1 is wrapped with an insulating layer and placed in a filling body 5, and the outer wall of the filling body 5 is provided with a cable double sheath and a wrapping tape 4 ; The cable double-layer sheath is composed of an inner sheath 6 and an outer sheath 7; wherein, the inner sheath 6 is a fluoroplastic sheath, and the outer sheath 7 is a low-smoke halogen-free polyolefin sheath material. The insulation layer includes an inner layer insulation 2 and an outer layer insulation 3; wherein, the inner layer insulation 2 is a cross-linked polyethylene insulation layer; the outer layer insulation 3 is a low-smoke halogen-free polyolefin insulation layer.

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Abstract

The invention discloses a power cable used in a nuclear power plant, which solves the problems that the existing power cable used in the nuclear power plant has low wear resistance, etc., and has the advantages of simple structure, convenient use and effectively improving the interference resistance of the cable, etc. The structure of the cable is characterized by comprising a multicore group conductor, the external wall of each conductor is coated with a insulating layer and arranged inside an obturator, the external wall of the obturator is provided with a cable double layer protecting sleeve and a wrap; the cable double layer protecting sleeve consists of an internal layer protecting sleeve and an external layer protecting sleeve, wherein, the internal layer protecting sleeve is a fluoroplastic protecting sleeve, and the external layer protecting sleeve is a low smoke zero halogen polyolefine protecting sleeve. The insulating layer includes internal layer insulation and external layer insulation, wherein, the internal layer insulation is a crosslinked polyethylene insulating layer and the external insulation is a low smoke zero halogen polyolefine insulating layer.

Description

technical field [0001] The invention relates to a cable, in particular to a power cable for nuclear power plants. Background technique [0002] At present, the cables used in nuclear power plants are mostly single-layer sheaths due to cost considerations, which results in low weather resistance and wear resistance of the cables. Especially, the power cables used in nuclear power plants cannot have any problems with wear resistance and weather resistance. However, the existing single-layer sheath structure can no longer meet the requirements. Contents of the invention [0003] The purpose of the present invention is to solve the current problems of poor weather resistance and low wear resistance of power cables used in nuclear power plants, and provide a power cable for nuclear power plants with the advantages of simple structure, convenient use, and effective improvement of weather resistance of cables. [0004] To achieve the above object, the present invention adopts th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01B3/44H01B7/17
Inventor 潘茂龙宋怀旭翟孟刚
Owner SHANGDONG HUALING CABLE