| 摘要 |
<p>PROBLEM TO BE SOLVED: To employ a prefabricated overhead line installation method when a wire anchoring method with a wedged clamp and a hanging jumper device are employed. SOLUTION: In a hanging jumper device 21 for a multiconductor transmission line, the multiconductor transmission lines 1 are anchored by the arm 4 of a strain tower on both the sides of the arm 4 with wedged clamps 12, yokes 6 and tension insulator strings 5, the center parts except both sides of jumper wires 3 formed between both wedged clamps 12 on both sides of the tower are laid horizontally along a rigid horizontal member 8 hung by the yoke 6 with support members 9 therebetween, and the jumper wires 3 are supported by spacers 11 arranged in the longitudinal direction of the rigid horizontal member 8 with intervals. The horizontal parts 3b of the jumper wires 3 which are laid along the rigid horizontal member 8 are used an excessive length parts which are bent into a U-shape with a size within a range containable in the inner space of a group of a plurality of jumpers 3 to absorb excessive lengths.</p> |
