Salt corrosion-resistant and torsion-resistant integral shielding telecommunication cable for offshore wind power and manufacturing method of integral shielding telecommunication cable

Abstract

The invention relates to a salt corrosion-resistant and torsion-resistant integral shielding telecommunication cable for offshore wind power and a manufacturing method of the integral shielding telecommunication cable. Salt corrosion-resistant and torsion-resistant rubber insulating layers are uniformly extruded on the peripheries of stranded copper conductors in a wrapping way to form insulated wire cores; the insulated wire cores are stranded in pair to form pair-twist wire pairs; gaps of the pair-twist wire pairs are filled with flame-retardant non-absorbent fiber fillers; a plurality of groups of pair-twist wire pairs are stranded to form a cable core; and the periphery of the cable core is coated with a low-intensity non-woven fabric longitudinally-covered layer, an inner jacket, a copper foil polyester composite belt shielding layer and an outer jacket sequentially from the inside out. The integral shielding telecommunication cable disclosed by the invention adopts the low-intensity non-woven fabric longitudinally-covered layer of which the shape is completely in fit with that of each insulated wire core, so that gaps between the low-intensity non-woven fabric longitudinally-covered layer and the insulated wire cores are eliminated, flame can be conveniently prevented from being spread and transferred inwards under the burning condition, and resistance to impregnation of humidity can be enhanced; and meanwhile, the low-intensity non-woven fabric longitudinally-covered layer can ensure that the inner jacket and the insulated wire cores are not adhered, so that the insulated wire cores are not damaged when the inner jacket is stripped during construction.

Description

technical field [0001] The invention relates to a communication cable, in particular to a salt-corrosion and torsion-resistant overall shielded communication cable for marine wind power. The invention also relates to a method for manufacturing a salt-corrosion-resistant and torsion-resistant overall 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 wind powe...

AI Technical Summary

Problems solved by technology

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

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