| 摘要 |
<p>PURPOSE:To prevent a yoke metal from tilting forward even upon increase of the size and the weight of jumper unit. CONSTITUTION:Transmission lines L1-L4(L5-L8) on the opposite sides of a steel tower are anchored to the steel tower by means of yoke metals 10 and insulator units (a) on the opposite sides. A jumper unit 1 is constituted of a horizontal suspender 1a shorter than the interval of the yoke metals 10 on the opposite sides arranged thereunder, and a support 1b, between the yoke metals 10 on the opposite sides. The support 1b is coupled with an end of the horizontal suspender 1a and a position close to the center of gravity of the yoke metal 10. This constitution prevents the yoke metal 10 from tilting forward even upon increase of the size or the weight of the jumper unit 1 and eliminates the need of vernier metal for regulating loosening.</p> |
