High-temperature-resistant composite communication cable

Abstract

The invention discloses a high-temperature-resistant composite communication cable. The high-temperature-resistant composite communication cable comprises a lapped covering and three communication cable cores; section center lines of three communication cable cores form an equilateral triangle; each communication cable core comprises an inner conductor, an inner cladding, a shielding layer and a sleeve layer are orderly arranged on the inner conductor from inside to outside along the radial direction, vacuum gap is formed between the outer sidewall of the shielding layer and the sleeve layer,and the outer sidewall of the shielding layer is connected with an inner sidewall of the sleeve layer through multiple flame-retardant connecting strips; the inner cladding is extruded at the externalof the communication cable core, and the cavity with the is filled with vascular tissue for simulating bamboo culm wall xylem is filled between the lapped covering and each communication cable core,and the dilatant flame-retardant fluid is injected into the cavity, an outer refractory material layer is covered on the outside of the lapped covering, and an armor layer is covered on the outside ofthe outer refractory material layer. The communication cable disclosed by the invention is simple in structure, good in flame retardance, high in heat resistance, good in tension and torsion resistance, long in service life, and strong in practicability.

Description

technical field [0001] The invention relates to the technical field of cables, in particular to a high temperature resistant composite communication cable. Background technique [0002] The cable is usually a rope-like cable twisted by several or groups of wires [at least two in each group]. Each group of wires is insulated from each other and is often twisted around a center. Insulating covering. Due to the continuous and rapid development of my country's economy, the power supply is very tight, which has triggered an upsurge in investment and construction of power infrastructure, especially high-voltage power cables are widely used in urban power grids. As the power transmission capacity of cables continues to increase, the requirements for the safety performance of cables are also getting higher and higher. Traditional power cables have weak high temperature resistance and flame retardancy, and poor compression and torsion resistance, which affects normal power communic...

AI Technical Summary

Problems solved by technology

Traditional power cables have weak high temperature resistance and flame retardancy, poor compression and torsion resistance, which affect normal power communication and the service life of cables

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