LEADING OUT STRUCTURE OF OPTICAL FIBER FOR OPTICAL FIBER-CONTAINING INSULATOR AND OPTICAL FIBER-CONTAINING INSULATOR DEVICE UTILIZING THIS STRUCTURE

摘要

PURPOSE:To prevent the failure of optical fibers during use by connecting the optical fibers drawn out of a through-hole so as to have some play in the hollow chamber of connecting fitting and leading the tension member of the flexible optical fiber cable mounted to the side wall of the connecting fitting through the side wall of the connecting fitting into the hollow chamber. CONSTITUTION:The connecting fitting 7 of a movable type which is internally formed with the hollow chamber 6 is hermetically fixed to the end of an insulator body 1 housing the optical fiber 3 in the through-hole 2 after the optical fiber 3 is drawn out of the through-hole 2 into this hollow chamber 6, the fibers are connected so as to have some play. The flexible optical fiber cable 9 is mounted to the side wall of the connecting fitting 7 and the tension member 11 at the center of the optical fiber cable 9 is led into the hollow chamber 6 through the side wall of the connecting fitting 7 and is fixed. On the other hand, the optical fiber 3 is led out through the optical fiber cable 9 to the outside. The drawing out of the optical fiber 3 is possible without generating troubles, such as the infiltration of rain water and cutting of the optical fiber 33 if the type to allow the flexible connection of the insulators to each other is adopted.