Anti-static network cable with good stability for rail transit

Abstract

The invention discloses an anti-static network cable with good stability for rail transit. The cable comprises a plurality of wire cores, a wire core support, a wire core insulation wrapping layer, analuminum foil shielding layer, an antistatic layer and an outer sheath insulation layer. There are four groups of wire cores. The four groups are arranged around the wire core support. The outer ringof the wire core support is provided with the wire core insulation wrapping layer. The cable core support is arranged among the cable cores in the network cable, the network cables can be separated from one another through the cable core support, the stability of each cable core in the network cable is improved, the wire cores are not liable to displace and rub and damage, and mutual interferenceamong the wire cores is reduced; the antistatic layer and the drainage wire are arranged, the antistatic performance of the network cable is improved, the anti-drawing steel wire is arranged, the anti-drawing and anti-fracture performance of the network cable is improved, the weight-reducing heat dissipation hollow cavity is arranged in the outer sheath insulation layer, the weight of the networkcable can be reduced, the burden of the cable body can be reduced and the heat dissipation performance can be enhanced.

Description

【Technical field】 [0001] The invention relates to the technical field of network wires, in particular to the technical field of antistatic network wires for rail transit. 【Background technique】 [0002] A network cable is a wired medium used to connect information from one network device to another. The performance of the network cable is mainly concerned with the attenuation performance of the wire, the crosstalk performance between groups, and the overall strength. Common network cables mainly include twisted pair, coaxial cable, and optical cable. Chinese patent CN209561076U discloses an antistatic network cable for rail transit, which includes: a jacket layer, an antistatic layer, an aluminum foil layer, a polyester layer and a cable from the outside to the inside, and each cable is wrapped with a twisted cable by an outer skin layer. A combined signal line, the center of the polyester layer is provided with a drainage line, the drainage line is wrapped by the first fl...

AI Technical Summary

Problems solved by technology

The four twisted pairs inside it are directly set inside the polyester layer, there is nothing to separate the twisted pairs, and the network cable will swing, vibrate, drag and other phenomena during use, the twisted pair inside the network cable It is easy to rub against each other, causing the twisted pair to be dislocated, damaged, or even short-circuited, and the existing twisted pair has poor anti-break performance, and the network cable is easy to break if the span is too long.

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