WIRE FOR HIGH-VOLTAGE TRANSMISSION LINES

摘要

FIELD: electricity.;SUBSTANCE: in a wire for high-voltage transmission lines containing the central aluminium base with grooves in which thermoplastic tubes with optical fibre contained in it are placed, there is an inner layer formed out of twisted Z-shaped aluminium wires and placed concentrically above the central aluminium base, an outer layer formed out of twisted Z-shaped aluminium wires and placed concentrically above the inner layer. At that shapes of Z-shaped aluminium wires and direction of their winding in layers are opposite to each other, and at contact surfaces, between the layers, the inner and outer surface have toothed protrusions forming continuous lines along the whole wire length, at that the toothed protrusions may lean to each other when torsion torque occurs in the outer layer.;EFFECT: invention allows elimination of water permeability for layers at the point of their contact and occurrence of torsion torque for the wire at large, thus increasing operating efficiency of the wire.;2 dwg