| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a polygonal overhead electric wire capable of obtaining high electric wire gripping force by efficiently transmitting compressive force generated by a bolt-type clamp or the like to the inside thereof. <P>SOLUTION: A polygonal overhead electric wire 100 is formed by forming an outermost layer by twisting a plurality of aluminum element wires 20 around aluminum-covered steel twisted wires (AC wires 13) obtained by twisting aluminum-covered element wires 12 around copper wires 11, and fitting trapezoid aluminum element wires 30, each having a trapezoidal cross-sectional shape, to each other in the circumferential direction. In this overhead electric wire, anti-slipping grease 40 mixed with a powdery anti-slipping agent is interposed between at least AC wires 13 and the aluminum element wires 20, and the anti-slipping agent and the grease are mixed so that the mixing weight ratio of the anti-slipping agent to the grease becomes 15% to 40% in the anti-slipping agent/(the grease + the anti-slipping agent). <P>COPYRIGHT: (C)2013,JPO&INPIT</p> |
