| 摘要 |
PROBLEM TO BE SOLVED: To provide an electric wire for a high-frequency current that is low in cost and that has a good connection workability.SOLUTION: An electric wire Pis obtained by rolling a copper tape as a core material 1 in a width direction into a pipe shape, twisting and arranging copper conductors 2 in a spiral shape to an outer periphery of the pipe-like core material 1, and coating the periphery of the respective conductors 2 by an insulator 3 made of vinyl chloride. Since the conductors are provided to the outer periphery of the pipe-like core material in a spiral shape, this electric wire has a large outer peripheral diameter configured by the respective conductors in the spiral shape, a small reactance, and a small impedance. Since a total cross sectional area of the whole conductors is smaller than that of one having a central conductor regardless of such the small impedance, the cost becomes low. In addition, since a work of removing the core material is unnecessary at pressure-bonding, like in the case that a non-conductive material made of a low-softening point resin and the like is used as the core material, a good connection workability can be obtained. |
