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Coaxial cable with compound inner conductor for use in shallow sea bed and manufacturing method thereof

A technology of coaxial cables and inner conductors, which is applied in submarine cables, cable/conductor manufacturing, coaxial cables/analog cables, etc. It can solve the problems of poor adaptability of communication cables, large cable resistance to pulling force, and signal transmission influence. , to achieve excellent moisture-proof penetration performance, smooth outer surface and good flexibility

Inactive Publication Date: 2015-04-29
JIANGSU YUANYANG DONGZE CABLE
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Ordinary communication cables used on the seabed will either cause cable damage and serious signal attenuation due to the impact of sea water due to their light weight, or they will be easily damaged due to their heavy weight due to their high tensile force; Arrange the communication cable and the power cable together to form a composite cable. Although this structure ensures the structural safety of the communication cable, it is easy to cause the strong electric field of the power cable to affect the signal transmission of the communication cable, and for some cables that do not need power In the case where only communication cables are needed, if composite cables are used, resources will be wasted seriously, and if composite cables are not used, it will easily lead to poor adaptability of communication cables to the environment

Method used

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  • Coaxial cable with compound inner conductor for use in shallow sea bed and manufacturing method thereof

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Embodiment Construction

[0019] The present invention has a coaxial cable with a composite inner conductor for shallow sea and seabed, which is manufactured in the following steps: (1) Eleven soft copper round wires with a diameter of 0.6mm are concentrically twisted around the outer circumference of a solid annealed copper conductor with a diameter of 1.5mm to form a composite inner Conductor 1, the stranded pitch diameter ratio of the annealed copper round wire is 18 to 25 times; a high-voltage polyethylene insulating layer 2 with a nominal thickness of 3.5mm is extruded on the composite inner conductor 1, and the high-voltage polyethylene insulating layer is 2 The minimum thickness is not less than 90% of the nominal thickness, the maximum thickness is not greater than 110% of the nominal thickness, and the diameter deviation measured by any vertical section does not exceed 10%. (2) Nine soft flat copper wires with a width×thickness of 3.28mm×0.5mm are used to evenly braid the outer conductor 3 on t...

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Abstract

The invention relates to a coaxial cable with a compound inner conductor for use in a shallow sea bed and a manufacturing method thereof. The coaxial cable is characterized in that the inner conductor composed of a plurality of stranded soft round copper wires is wound outside a center conductor, a high pressure polyethylene insulating layer is extruded outside the compound inner conductor; an outer conductor is uniformly woven at the periphery of the high pressure polyethylene insulating layer; two layers of polyester film strips are lapped at the periphery of the outer conductor in opposite directions. and the periphery of the polyester film strip is successively coated with a first asphalt coating layer, a first dipped hemp rope lining layer, a second asphalt coating layer, a copper alloy wire armor layer, a third asphalt coating layer, a second dipped hemp rope lining layer, a fourth asphalt coating layer, a aluminum plated magnesium alloy steel wire armor layer, a fifth asphalt coating layer, a first dipped hemp wrapped strip layer, a sixth asphalt coating layer, a second dipped hemp wrapped strip layer, a seventh asphalt coating layer and a plastic film anti-sticking layer. The cable is stable in structure, good in anti-water-seepage, corrosion-resistant and anti-pulling performances, and stable in signal transmission when water impact occurs.

Description

technical field [0001] The invention relates to a communication cable, in particular to a coaxial cable with composite inner conductor for shallow seabed. The invention also relates to a method for manufacturing a coaxial cable with a composite inner conductor for shallow seabeds. Background technique [0002] With the development and utilization of marine energy, more and more submarine cables are used as current-carrying equipment for submarine signal transmission, and the technical requirements are also getting higher and higher. In particular, cables are required to have excellent mechanical, physical and electrical properties, and to ensure that they can withstand the impact of seawater immersion. Excellent signal transmission performance, anti-seepage, seawater corrosion resistance, tensile mechanical properties, long service life and high reliability. Ordinary communication cables used on the seabed will either cause cable damage and serious signal attenuation due to...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01B11/18H01B7/14H01B13/00
Inventor 李永江陆云春
Owner JIANGSU YUANYANG DONGZE CABLE
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