Method for manufacturing composite conductive wire and heating monofilament of composite conductive wire

A technology of composite wires and manufacturing methods, applied in the direction of cable/conductor manufacturing, conductors, conductive materials, etc., can solve the problems of unfavorable overhead line high-altitude operations, wire influence, low assembly efficiency, etc.
CN101625909AActive Publication Date: 2010-01-13CHINA ELECTRIC POWER RES INST
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
CHINA ELECTRIC POWER RES INST
Publication Date
2010-01-13

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Abstract

The invention provides a method for manufacturing a composite conductive wire and a heating monofilament of the composite conductive wire. The composite conductive wire consists of a plurality of monofilaments which are stranded; more than one monofilament is the heating monofilament; the heating monofilament is at least partially made of ferromagnetic material with low Curie point; and the heating monofilament can produce heat when the surface temperature of the conductive wire is lower than the Curie point temperature so as to maintain the surface temperature of the conductive wire over a freezing temperature. The composite conductive wire of the invention not only can effectively prevent icing on the surface of the conductive wire on a power transmission line, but also does not produce a complex mounting process, and hardly increases the load of the conductive wire.
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Description

Technical field

[0001] The invention relates to a wire of a power transmission line, in particular to a composite wire and a method for manufacturing a heating monofilament of the composite wire. Background technique

[0002] The long-term operating temperature of existing conventional ACSR conductors is 70°C, but in winter, the long-term operating temperature of conventional ACSR conductors will be lower. The surface temperature of the conductors is generally below 0°C in winter rain and snow, especially When the ice and snow disaster comes, the wires on the outdoor transmission circuit will be iced because the surface temperature is lower than 0℃. After the icing on the wire, it will increase the load of the wire and cause damage to the transmission circuit. For example, at the beginning of 2008, the freezing disasters in most parts of southern and northwestern China caused severe damage to the local power grid and caused widespread power outages.

[0003] In order to solve the...

Claims

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