| 摘要 |
<p>PROBLEM TO BE SOLVED: To prevent flashover faults generated between circuits, by attaching counter weights for preventing the side vibrations of wires to the wires of the one or more phases of the different-phase wires of each circuit. SOLUTION: An aerial transmission line comprises a steel tower 20 with steel tower arms 10 and wires 30 installed on the steel tower arms 10, and on one side of the steel tower arms 10, wires 30A of one circuit are installed, and on the other side of the steel tower arms 10, wires 30B of the other circuit are installed. Then, counter weights 60 for preventing side vibrations are attached to wires 31, 33 of the wires 31-33 of different phases for constituting the wires 30A of one circuit, and other counter weights 60 for preventing side vibrations are also attached to wires 35, 37 of the wires 35-37 of different phases for constituting the wires 30B of the other circuit. Resultly, since the wires of the respective circuits are made hard to generate their side vibrations even when a strong cross wind blows, flashover faults generated between the circuits can be prevented effectively.</p> |
