Polymetallic ultra-light covered wire

Abstract

The invention discloses a polymetallic ultra-light covered wire, which consists of two insulated wire cores stranded. Each insulated wire core consists of a conductive reinforced core and a protective insulating layer covered outside the conductive reinforced core, wherein the conductive reinforced core consists of three copper-clad aluminum conductor conductive cores and four copper-clad steel conductor reinforced cores which are mixed and stranded; and linear polyethylene with low density is adopted as the insulating layer. The polymetallic ultra-light covered wire can simultaneously meet conductivity and mechanical performance and reduce the weight of a product, adopts the linear polyethylene with the low density as the insulating layer so as to meet the insulating performance, reduce the weight of the product and also improve the environment resistance of the product; The polymetallic ultra-light covered wire can work under the conditions of high temperature, high humidity and low temperature for a long time, has the advantages of good mechanical performance, light weight, small outer diameter, stable transmission quality, and quick and convenient succession, and is applied to engine-driven quick stretching and releasing operations.

Description

technical field [0001] The invention relates to communication cables, in particular to a multi-metal ultra-light duplex cable, which is a special multi-metal ultra-light duplex cable used in conjunction with "wired communication system" projects, telephone stand-alone units and "wired transmission equipment". Background technique [0002] In the prior art, there are generally two types of duplex lines used in wired communication systems: one is polyvinyl chloride duplex lines, which use galvanized steel wires as tensile elements and PVC (polyvinyl chloride) as insulation; due to the density of galvanized steel wires Large, high hardness, poor cold resistance of PVC, and large dielectric loss, so it is easy to cause quality defects such as insulation cracks and poor communication quality when used in cold conditions. The other is the duplex wire that uses aramid yarn as the reinforcing core, which consists of three parts: conductive core, aramid yarn reinforcing core, and LLD...

AI Technical Summary

Problems solved by technology

[0002] In the prior art, there are generally two types of duplex lines used in wired communication systems: one is polyvinyl chloride duplex lines, which use galvanized steel wires as tensile elements and PVC (polyvinyl chloride) as insulation; due to the density of galvanized steel wires Large, high hardness, poor cold resistance of PVC, and large dielectric loss, so it is easy to cause insulation cracks and poor communication quality defects when used in cold conditions

The other is the duplex wire that uses aramid yarn as the reinforcing core, which consists of three parts: conductive core, aramid yarn reinforcing core, and LLDPE (linear low-density polyethylene) insulating layer; the conductive core is tinned copper wire, The reinforcing core is aramid yarn. Although this kind of double thread is lighter in weight and better in cold resistance, it is inconvenient to connect and poor in practicability.

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