Salt corrosion and torsion resisting type shielding telecommunication cable used for ocean wind power and manufacturing method thereof

Abstract

The invention relates to a salt corrosion and torsion resisting type shielding telecommunication cable used for ocean wind power and a manufacturing method thereof. A salt corrosion and torsion resisting type rubber insulating layer is uniformly extruded to wrap the peripheries of stranded copper conductors in order to form insulating wires, the insulating wires are stranded in pairs to form a stranded wire pair, the gap of the stranded wire pair is filled with a flame-retardant non-hygroscopic fiber filling core, the periphery of each group of stranded wire pair is wound with a copper foil polyester compounding belt shielding layer to form a stranded group, multiple stranded groups are mutually stranded to form a cable core, and the periphery of the cable core is wrapped with low strength non-woven fabrics, and is extruded with a protective sleeve. According to the salt corrosion and torsion resisting type shielding telecommunication cable, a longitudinal low strength non-woven fabric wrapping layer is adopted, and is completely matched with the insulating wire core in shape, so that the gap between the longitudinal low strength non-woven fabric wrapping layer and the insulating wire core is eliminated, a flame can be favorably prevented from being continuously transmitted to the inside under the combustion condition, and the humidity steeping resistance is improved. Meanwhile, the longitudinal low strength non-woven fabric wrapping layer can ensure that the protective sleeve does not adhere to the insulating wire core, and facilitates the stripping of the protective sleeve in the construction process without damages on the insulating wire core.

Description

technical field [0001] The invention relates to a sub-shielded communication cable, in particular to a salt-corrosion and torsion-resistant sub-shielded communication cable for marine wind power. The invention also relates to a method for manufacturing a salt-corrosion-resistant torsion-resistant separate shielded communication cable for marine wind power. Background technique [0002] With the maturity of land-use wind power utilization, the country has begun to promote the use of offshore wind power, but at present there is no cable dedicated to offshore wind power that can fully meet the operating conditions of offshore wind power to match it, and most of them are matched with cables originally used for land-use wind power It is used for offshore wind power, or a cable with certain performance required by the cable for offshore wind power is used. However, the performance of cables for land-use wind power does not take into account the special environment of offshore win...

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Problems solved by technology

[0006] The invention patent with the publication number CN101838424A discloses a twist-resistant wind power generation cable sheath material and cable. The sheath uses chlorinated polyethylene as the raw rubber base material, which has low temperature resistance to -60°C and anti-twist performance, but does not have seawater resistance. Salt, acid, alkali corrosion and resistance to seawater wet immersion, not suitable for marine wind power environment; at the same time, the cable insulation and sheath are double-layer co-extruded, which is not conducive to the separation of cable end insulation and sheath during construction and installation

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