| 摘要 |
<p>PROBLEM TO BE SOLVED: To protect an overhead transmission line from corrosion effectively by a method wherein a plurality of armor rods are wound around the transmission line so as to have at least one gap in a circumferential direction and salt- containing rain water, etc., penetrating inside the armor rods is drained out easily through the gap. SOLUTION: A plurality of armor rods 2 having required lengths are wound on the outer circumference of an overhead transmission line 1 in the circumferential direction. The number of the wound armor rods 2 is less than the number required by one and a gap 3 corresponding to one armor rod is formed in the circumferential direction. By this structure, salt-containing rain water, etc., penetrating inside the armor rods can be drained out through the gap easily and salt-containing rain water, etc., does not stay inside the armor rods for a long time. With this constitution, the part of the overhead transmission line on which the armor rods are applied can be protected from corrosion effectively.</p> |
