Shallow seabed symmetric audio communication cable and manufacture method thereof
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An audio communication and symmetrical technology, which is applied in the direction of submarine cables, cable/conductor manufacturing, and twisted/quad-stranded cables. Signal transmission impact and other issues, to achieve excellent physical and mechanical properties, high mechanical strength, stable communication signal transmission effect
Inactive Publication Date: 2015-05-27
JIANGSU YUANYANG DONGZE CABLE
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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
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[0019] The shallow sea submarine symmetrical audio communication cable of the present invention is manufactured according to the following steps in sequence: (1) A high-pressure polyethylene insulating layer with a nominal thickness of 1.0 mm is extruded on a solid circular copper conductor with a diameter of 1.2 mm to form an insulating core 3a; The nominal thickness of the high-pressure polyethylene insulation layer is 1.0mm and 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%.
[0020] (2) Twisting four insulated wire cores 3a of different colors into a star stranded group 3, and the two on the diagonal form a working pair; wrap different color ribbons 3b outside the star stranded group, and then combine the four The star-quad groups are arranged tangentially in a circular array on the outer periphery of ...
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Abstract
The invention relates to a shallow seabed symmetric audio communication cable and a manufacture method thereof. A high pressure polyethylene insulation layer is extruded outside a copper conductor to form an insulated wire core, four insulation cores with different colors are twisted into star quads, the four star quads are respectively wound outside a polyethylene pad core, a measurement copper wire is arranged in the polyethylene pad core, signal wires are respectively arranged between the peripheries of every two adjacent star quads and are twisted into a core, and a polyester film strip, a high pressure polyethylene sheath, a first impregnated hemp rope, a first asphalt coating layer, a copper alloy wire anchoring layer, a second asphalt coating layer, a second impregnated hemp rope lining layer, a third asphalt coating layer, an aluminum magnesium alloy plated steel wire anchoring layer, a fourth asphalt coating layer, a first impregnated gird layer, a fifth asphalt coating layer, a second impregnated gird layer, a sixth asphalt coating layer and a plastic film adhering-preventing layer are sequentially coated on the periphery of the core. The shallow seabed symmetric audio communication cable is capable of transmitting communication and control signals, and has the advantages of stable structure, seepage prevention, corrosion resistance, good pulling resisting property, and stable signal transmission during water impaction.
Description
technical field [0001] The invention relates to a communication cable, in particular to a shallow sea submarine symmetrical audio communication cable. The invention also relates to a manufacturing method of a shallow sea submarine symmetrical audio communication cable. 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 the impact ...
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