| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a grounded metal that may be formed of the minimized amount of material, hold an arc characteristic of an arc horn, improve the working efficiency and surely hold and fix a holding metal in which the ground line is connected. SOLUTION: A grounded metal 6 is allocated at the intermediate part between an insulator 1 of the insulator coupling end in the power transmission line and the insulator 1. Moreover, the insulator coupling end is provided with an arc horn fitting metal 3, a base metal 7 for joining the grounded metal 6 is fixed to the fitting metal 3 using a bolt 5 for tightening the arc horn 2.</p> |
