PROBLEM TO BE SOLVED: To provide a trolley wire that can suppress reduction in life due to extensional strain after wiring of a wear detection wire constituted of an optical fiber.SOLUTION: A trolley wire 1 includes: a trolley wire body 10 including a groove 14 for a wear detection wire therein and having a nominal sectional area of 150 mmor more and 170 mmor less; and a wear detection wire 20 disposed inside the groove 14 for a wear detection wire and constituted of an optical fiber, where a sectional area in a radial direction of the wear detection wire 20 is 30% or more and 40% or less of an effective sectional area of the groove 14 for a wear detection wire.SELECTED DRAWING: Figure 1
【課題】光ファイバからなる摩耗検知線の架線後の伸びひずみに起因する寿命の低下を抑えることのできるトロリ線を提供する。【解決手段】本発明の一態様において、摩耗検知線用溝14を内部に有する公称断面積が150mm2以上かつ170mm2以下のトロリ線本体10と、摩耗検知線用溝14内に配置された光ファイバからなる摩耗検知線20と、を有し、摩耗検知線20の径方向の断面積が、摩耗検知線用溝14の有効断面積の30%以上かつ40%以下である、トロリ線1を提供する。【選択図】図1
TROLLEY WIRE
トロリ線
2017-12-28
Patent
Electronic Resource
Japanese
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