High-strength aerial cable

Abstract

The invention provides a high-strength aerial cable, comprising a conductor, and an insulating layer. The conductor is made of high-strength aluminium alloy. The aluminium alloy conductor is in a cylindrical shape. A complex fiber core comprises carbon fiber filaments and fiber glass filaments. An insulating film wraps outside the conductor, and then the complex fiber core is winded on the periphery of the conductor, and finally, a protective coating is extruded on the periphery of the complex fiber core and the conductor. The protective coating is made of duplex-polyvinyl chloride. First, proper amount of Cr, Cu, and Mg is added in the aluminium alloy, solution strength of the aluminium alloy is increased, so strength of the aluminium alloy, especially tensile strength of the aluminium alloy are substantially improved. In addition, on the periphery of the conductor is the complex fiber core, so tensile strength of the cable is greatly increased. Moreover, the outermost layer uses the duplex-polyvinyl chloride, so tensile strength of the cable is enhanced to a certain extent.

Description

technical field [0001] The invention relates to the technical field of electric wires and cables, in particular to a carbon fiber heating and waterproof cable. Background technique [0002] In the application of long-distance power transmission, under normal circumstances, the above-ground part usually uses steel-cored aluminum stranded wire, and the underground part uses insulated cables with an outer insulation layer. In the prior art, steel-cored aluminum strands are used instead of ordinary steel wires, because the tensile strength of ordinary steel wires is relatively small, and even high-strength steel wires cannot reach the tensile force between long-distance erected cables. In addition, the overhead span is limited and the overhead scale is large, which not only increases the cost, but also has poor resistance to external wind and rain. If it encounters thunderstorms, strong winds, and hail and ice, it is prone to fracture and cause accidents. Therefore, it is an ur...

AI Technical Summary

Problems solved by technology

In the prior art, steel-cored aluminum strands are used instead of ordinary steel wires, because the tensile strength of ordinary steel wires is relatively small, and even high-strength steel wires cannot reach the tension between long-distance erected cables

In addition, the overhead span is limited and the overhead scale is large, which not only increases the cost, but also has poor resistance to external wind and rainy weather. If it encounters thunderstorms and strong winds, as well as hail and ice, it is prone to fracture and cause accidents

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