Self-bearing tensile-type high-power coaxial cable

Abstract

The invention discloses a self-bearing tensile-type high-power coaxial cable which comprises an inner conductor center bearing core, a first buffer layer, a tubular inner conductor, an insulating layer, a second buffer layer and an outer sheath from inside to outside. A metal conductive tube is arranged between the insulating layer and the second buffer layer, a tensile metal wire layer is arranged between the second buffer layer and the outer sheath, and the tensile metal wire layer is formed by twining a plurality of tensile metal wires in parallel; the outer sheath is provided with a single-line convex ridge, the height of the single-line convex ridge is not smaller than 0.5 mm, and the width of the single-line convex ridge is not smaller than 1 mm. The self-bearing tensile-type high-power coaxial cable is very high in self-bearing property, little in attenuation and good in shielding effect.

Description

technical field [0001] The invention relates to the field of electric wires and cables, in particular to a self-supporting tensile high-power coaxial cable. Background technique [0002] Today's world has entered the information age, and information has become a strategic resource for economic development and a unique factor of production. A modern information transmission system and a complete information service system established by combining long-distance communication networks, computers, video and other multimedia terminals, It has become an important symbol of the economic development of a country or region. Coaxial cable is an important variety in information transmission. It is mainly used as an antenna feeder for radio transmitting or receiving equipment and as an internal connection or interconnection line for various communications and electronic equipment. The coaxial cable is composed of inner conductor layer, insulating layer, outer conductor layer and sheath...

AI Technical Summary

Problems solved by technology

The coaxial cable is composed of inner conductor layer, insulating layer, outer conductor layer and sheath layer. The inner conductor layer and outer conductor layer are usually small in section and have poor self-supporting performance, especially when the cable is used under the working condition of not being buried in the ground. , due to poor load-bearing performance, the weight of the cable itself will cause the cable conductor to break, and it is also easy to damage the small cable conductor during construction

In the prior art, the support frame is used to support the cable, and the coaxial cable is protected by adding a support frame, which has a certain effect, but increases the laying cost and time, and the cable itself has poor load-bearing performance, and it is inevitable during the construction process. The problem of damage to the core of the cable caused by careless operation

[0003] Chinese patent "ZL201520373236.X" discloses a coaxial cable, the main content of which is to add a strengthening layer outside the outer conductor, which improves the overall tensile performance of the cable to a certain extent. In this working condition, the stress concentration point of the cable is at the center point of the cable, the center point is not protected, and the tensile performance of the inner conductor has not been solved; due to the addition of one or more layers of structure in the cable, The processing procedure is increased, the production efficiency is reduced, and the weight of the cable is increased. On the one hand, it affects the installation, and on the other hand, it increases the pressure of the inner conductor during the load-bearing process.

Images