Low loss alminum stranded wire with a steel core member

Details Low loss alminum stranded wire with a steel core member Low loss alminum stranded wire with a steel core member

H - Electricity

01

B

337/87

H01B 5/08 (2006.01) H01B 1/02 (2006.01)

Patent

CA 1270045

ABSTRACT OF THE DISCLOSURE A low loss aluminum stranded transmission line is composed of a steel core member formed by a plurality of steel wires for providing the tension strength of the line and an aluminum portion formed by a plurality of aluminum element wires twisted around the steel core member in at least one layer. The steel core member includes higher tension strength wires than the standard steel wires of a standard transmission line. Thus, the diameter of the steel core member can be reduced to be smaller than that of the standard steel core, without decreasing the break weight. In the aluminum portion, some, or all of the element wires have a fan-shaped cross section, so that the cross sectional space factor of the aluminum portion is actively increased to reduce the electric power loss during electrical transmission. Also, at least one projection of fin-shape form on at least one element wire of the aluminum portion is located in the most outer layer of the aluminum portion. This fin-shaped projection effectively prevents snow piling on the transmission line.

489171

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