Anti-sliding electric power overhead aluminum stranded wire

Abstract

The invention discloses an anti-sliding electric power overhead aluminum stranded wire. The anti-sliding electric power overhead aluminum stranded wire comprises a stress unit positioned in the center, and a first aluminum conductive layer, a second aluminum conductive layer and a third aluminum conductive layer which are stranded on the outer surface of the stress unit in sequence; a polyester adhesive filling part is prepared from a first component and a second component at a mass ratio of 1 to 2-4 through mixing; the first component comprises the following raw materials in parts by weight: N-307 unsaturated polyester, butyl acrylate, 2-ethylhexyl acrylate, n-butanol, methylbenzene, talcum powder, aluminum powder, calcium carbonate and triethylene tetramine; and the second component comprises the following components in parts by weight: acrylic acid, methyl methacrylate, ethylene glycol, toluene diisocyanate, dibutyltin dilaurate, benzoyl peroxide and phenyl salicylate. According to the anti-sliding electric power overhead aluminum stranded wire, the smooth and level property of the multiple carbon fiber protofilaments in the aluminum layer is ensured while damage of the aluminum layer in the subsequent use process is also avoided, thereby ensuring reliability of electrical performance.

Description

technical field [0001] The invention relates to a power transmission wire, in particular to an anti-slip power aerial aluminum stranded wire. 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 requirements for str...

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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