TROLLEY WIRE EQUIPPED WITH INDICATOR OF WEAR-LIMIT

摘要

The present invention relates to a trolley wire equipped with an indicator of wear-limit to check the replacement time of a trolley wire with the naked eye. The trolley wire of the present invention to achieve the purpose includes a wear-limit indicating part which is made of paint or has a concave or convex shape on both sides where a vertical length (D) from the upper part of the trolley wire to trolley wire substrate is 0.4 ~ 0.8D. The wear-limit indicating part is continuous through the length.