| 摘要 |
PROBLEM TO BE SOLVED: To achieve weight-saving and reduction of diameter of a wire harness.SOLUTION: A group of electric wires for signal circuit (having a conductor cross section is equal to or less than 0.3 mm(or 0.35 mm) when a conductor is formed of copper or copper alloy), among electric wires forming a wire harness is distributed into a large diameter electric wire (size is 0.5) formed of an aluminum electric wire, a small diameter electric wire (size is 0.3 (or 0.3)) formed of a copper electric wire having a conductor cross section smaller than that of the large diameter electric wire, and an extra fine electric wire (size is 0.13) formed of a copper electric wire having a conductor cross section smaller than that of the small diameter electric wire, and 60% of the electric wires for signal circuit is substituted to the extra finer electric wire, and 70% of other copper electric wires is substituted to the aluminum electric wire. |
