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In late years, in domestic and foreign electric railways, maintenance systems that promotion of efficiency in contact line maintenance is planned are expected. To do contact line maintenance by a more few numbers of people, technology development of contact line and maintenance free contact line structure are introduced. So, study committee concerning contact line maintenance considering environment in railway was established by the Institute of Electrical Engineering of Japan (IEEJ). The study committee made studies on from (1) to (4), (1) contact line maintenance in JR group railways and private railways, and overseas contact line maintenance, (2) diagnostic technology of contact line maintenance, mechanization of repair of contact line, and systematization of maintenance, (3) contact line structure considering environment and environmental long-life contact line materials, (4) direction of future contact line maintenance. This technical report describes the present condition and future prospects of contact line maintenance. |
