Salt corrosion resistant and twisting resistant double-shielded communication cable for ocean wind power and manufacturing method of communication cable

Abstract

The invention relates to a salt corrosion resistant and twisting resistant double-shielded communication cable for ocean wind power and a manufacturing method of the communication cable. Each stranded copper conductor is wrapped in a salt corrosion resistant and twisting resistant extruded rubber insulation layer to form an insulated core; each two insulated cores are stranded to form a twisted pair of which the gaps are filled with fillers; each twisted pair is wrapped in a twisted pair copper foil shielding layer to form a twisted-pair group; the twisted-pair groups are mutually stranded to form a cable core; and the cable core is wrapped in a low-strength non-woven fabric longitudinal wrap, an inner sheath, a cable core copper foil shielding layer and an outer sheath in sequence from inside to outside. The communication cable provided by the invention adopts the low-strength non-woven fabric longitudinal wrap which completely fits the insulated cores in shape, so that gaps between the low-strength non-woven fabric longitudinal wrap and the insulated cores are eliminated, convenience is provided for stopping flame from spreading inwards under a combustion condition and the resistance to moisture impregnation is enhanced; and meanwhile, the low-strength non-woven fabric longitudinal wrap can ensure that the sheaths are not stuck to the insulated cores, and provides convenience for stripping the sheathes in a construction process without damaging the insulated cores.

Description

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

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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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