| 摘要 |
Provided is a headphone cable comprising a conduction body combining high conductivity with excellent tensile strength and resistance to bending. In this invention, an insulated wire comprises: a copper-silver alloy wire containing 0.5 to 10% by mass of Ag with the remaining portion consisting of Cu and unavoidable impurities; and an insulation cover film on the surface thereof. A plurality of the insulated wires are twisted together into a twisted wire, wherein the twisting pitch is 5 to 20 times the external diameter of the twisted wire. Furthermore, this headphone cable comprises a plurality of the twisted wires grouped together to form a cable core, and a protection cover provided at the outer periphery of the cable core. |
