Self-supporting anti-interference multi-core shielding communication cable

Abstract

The invention discloses a self-supporting anti-interference multi-core shielding communication cable which comprises multi-core communication wire cores and bearing stranded wires which are arranged at intervals and jointly wrapped in a polyvinyl chloride extruded outer sheath layer, and the polyvinyl chloride extruded outer sheath layer forms thin connecting ribs on interval sections between the multi-core communication wire cores and the bearing stranded wires. The bearing stranded wire is formed by twisting stainless steel wires and aramid stranded wires, the thickness of the thin connecting rib is not smaller than one half of the diameter of the bearing stranded wire, and the multi-core communication wire core comprises a plurality of insulating wire cores and a nylon resin core material which are jointly twisted to form a cable core. The cable core is sequentially coated with an AFRP reinforced wrapping layer, a fluororesin wrapping anti-attrition layer, a shielding net-shaped conductor layer, a copper-plastic composite belt wrapping shielding layer, a nylon wire anti-torsion wrapping layer and a nylon anti-corrosion layer. The cable is better in bearing capacity, excellent in torsion resistance, stable in shielding effect and durable in use.

Description

technical field [0001] The invention relates to the technical field of cables, in particular to a self-supporting anti-interference multi-core shielded communication cable. Background technique [0002] Communication cables are widely used in the construction of metropolitan area network communication networks. Self-supporting multi-core communication cables are mainly installed overhead, and the suspension wire and cable use the same outer sheath, which is economical and practical, and easy to install and lay. Due to the complexity of the overhead installation environment, it is easy to suffer from external signal interference, and the cable shielding effect is unstable, which affects the signal transmission characteristics. In addition, the cable itself has poor bearing capacity and insufficient torsion resistance, and it is also prone to core breakage and shielding layer breakage during the installation process, which affects the electrical characteristics of normal work....

AI Technical Summary

Problems solved by technology

Due to the complexity of the overhead installation environment, it is easy to suffer from external signal interference, and the cable shielding effect is unstable, which affects the signal transmission characteristics

In addition, the cable itself has poor bearing capacity and insufficient torsion resistance. It is also prone to core breakage and shielding layer breakage during the installation process, which affects the electrical characteristics of normal work.

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