Twisted pair conductor for insulated wire, insulated wire, cord and cable

摘要

The stranded conductor 10 for an insulated wire of the present invention is Mg-0.2-1.8% in mass %, 0.2-2.0% Si, 0.01-0.33% Fe, and Cu, Ag, Zn, Ni, Co, Au, Mn, One or more elements selected from the group of Cr, V, Zr, Ti and Sn: Fibers containing 0.00 to 2.00% in total, the balance having an alloy composition composed of Al and inevitable impurities, and grains are evenly extended in one direction The first conductor 20 and the first conductor 20 made of a specific aluminum alloy having a metal structure and having an average value of a dimension (t) perpendicular to the long side of the crystal grain in a cross section parallel to one direction is 400 nm or less. It is composed of a second conductor 40 made of a metal or alloy selected from the group of high conductivity copper, copper alloy, aluminum and aluminum alloy in a twisted mixed state, and has high electric conductivity and high strength, and has excellent bending fatigue resistance. In addition, weight reduction can be achieved.