Energy-saving overhead conductor used for high-voltage power transmission line

Abstract

The present invention discloses an energy-saving overhead conductor used for a high-voltage power transmission line. The energy-saving overhead conductor used for the high-voltage power transmission line is characterized in that an aluminum conductor cladding layer is orderly twisted on the outer surface of a second aluminum alloy conductive layer, and the aluminum conductor cladding layer is formed by twisting Z-shaped aluminum alloy conductors; a polyester adhesive filling part is filled between an aluminum layer and a plurality of carbon fiber precursors and is formed by mixing a first component and a second component according to a mass ratio of 1:2-4, and the first component is composed of the following weight parts of raw mateirals of N-307 unsaturated polyester, butyl acrylate, 2-ethylhexyl acrylate, n-butyl alcohol, methylbenzene, talcum powder, aluminite powder, calcium carbonate and triethylene tetramine. The energy-saving overhead conductor used for the high-voltage power transmission line of the present invention enables the conductive performance, the bending performance and the corrosion resistant of a cable to be improved and the cable calorific value to be reduced, and is widely used to improve the operation reliability and safety of a whole power transmission system substantially.

Description

technical field [0001] The invention relates to a power transmission wire, in particular to an energy-saving overhead wire for a high-voltage transmission line. Background technique [0002] my country's national economy continues to grow at a high speed, and the demand for electricity is increasing. According to the plan of State Grid Construction Co., Ltd., the construction of 1100kV UHV transmission lines will be focused on in recent years. In the construction of transmission lines, larger cross-section conductors are required, but the outer diameter of the conductors is not expected to be too large. Conductor design should consider many factors, especially the transmission capacity and economic current density of the conductor, corona critical voltage, mechanical strength and so on. On the one hand, in areas with narrow lines, it is only necessary to replace wires with similar cross-sectional specifications, and basically do not need to replace iron towers to meet the r...

AI Technical Summary

Problems solved by technology

However, the strength of galvanized steel strand is not high, and the corrosion resistance is not strong, which shortens the overall service life of the wire

In the 1980s, aluminum-clad steel single wire appeared. At that time, due to the complicated process, it was difficult to promote. Now, it has been used in large-span lines. Its corrosion resistance is greatly enhanced, but its strength is lower than that of steel strands.

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