| 摘要 |
<p>PROBLEM TO BE SOLVED: To make a system dividing work which is performed for opening a jumper device, when an electrical accident occurs in a transmission and distribution system to be carried out easily and quickly. SOLUTION: In a jumper device 11, which electrically connects transmission lines 2 anchored to the steel crossarm 1 of a steel tower via anchor clamps 3 and tension insulator strings 6 on both sides of the steel tower to each other via a jumper conductor 5, both ends of which are electrically connected to the clamps 3, the central part of the conductor 5 is hung with an insulating hanging material 50 attached to the crossarm 1 of the steel tower. In addition, both ends of the conductor 5 are respectively connected to the clamps 3 on both sides of the steel tower via jumper sockets 14, each of which is composed of a jumper socket main body section 16 joined to one of the clamps 3 and an attaching/detaching clamp section 17, which is provided on the outlet side of the main body section 16 and detachably grasps the conductor 5. The work for attaching and detaching the conductor 5 to the clamp sections 14 of the jumper sockets 14 can be carried out easily and efficiently, because hand-held parts is light-weight, and the like. Therefore, system division can be made quickly. Since the central part of the conductor 5 is hung, the temporary holding work of the conductor 5 becomes simple.</p> |
