Wire cable conductor

Abstract

The present invention is a divisional application of an application of which the number is 201310054708.0. A wire cable conductor disclosed by the application is characterized in that the wire cable conductor is an expanded diameter copper stranded aluminum-alloy conductor steel-reinforced, the body oxide layer of a copper stranded wire and an aluminum-alloy conductor steel-reinforced are retained, and the expanded plastic is extruded on the copper stranded wire for circular diameter expansion; an aluminum alloy wire is stranded on the circular expanded diameter expanded plastic, a copper wire is stranded on the aluminum alloy wire of which the diameter is expanded, and the sectional area of the copper wire occupies 1% and 90% of the total sectional area of the expanded diameter copper stranded aluminum-alloy conductor steel-reinforced according to the currents. By splitting an isolation protection layer, the copper and aluminum alloys form two conductors which are relatively independent and of which the potentials are same, the mutual electromagnetic interference is not generated, and a current density distribution uniform effect is improved substantially. The wire cable conductor is suitable for the wire cables of various voltage grades.

Description

[0001] This application is a divisional application with application number 201310054708.0, application date 2013-02-21, and invention name "a wire and cable conductor". technical field [0002] The invention relates to a wire and cable conductor suitable for wires and cables of various voltage levels. Background technique [0003] In order to increase current carrying capacity and reduce cost, the existing wire and cable industry has proposed high-strength copper-clad aluminum cable conductors, expanded diameter steel-cored aluminum stranded wires, hollow cables, high-voltage hollow cables, power cables with combined conductor structures, and multi-split copper or aluminum cables. busbar. But still haven't found a more effective way to reduce cost and increase carrying capacity. The conductors of the above-mentioned series of products are copper, aluminum, copper-clad aluminum, and copper-aluminum conductors with insulation and isolation. The disadvantages are: [0004] ①...

AI Technical Summary

Problems solved by technology

[0004] ①The copper carrying capacity is small, the temperature rises, and the cost is high

[0005] ②The current carrying capacity of aluminum is small, the temperature rises, the conductivity of aluminum is relatively poor compared to copper, and it is easy to oxidize

[0006] ③ The current carrying capacity of copper-clad aluminum is small, the temperature rises, the process of copper-clad aluminum is complicated, and it is a metallurgical combination (the use of copper and aluminum in the prior art must be a metallurgical combination, otherwise there will be an electrochemical reaction), the adhesion of copper and aluminum Copper and aluminum are not layered, they are a whole, and the current density distribution is uneven

Compared with copper-clad aluminum wires with equal diameters, copper wires have a larger carrying capacity than copper-clad aluminum wires. Copper-clad aluminum cables with equal diameters are not energy-saving compared with copper cables, and waste copper-clad aluminum wires and cables are being recycled. The separation process of copper and aluminum is complicated and the pollution is serious

[0007] ④ Disadvantages of multi-split copper or aluminum bus bars: small carrying capacity, high temperature, insulation between copper and aluminum, and the electrochemical reaction of copper and aluminum is solved, but copper and aluminum are two independent conductors, unequal potential, two The electromagnetic fields between the conductors interfere with each other and reduce the carrying capacity of each other

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