抄録
Dead sections are installed in the overhead contact line systems between power feeding sections having different voltage phases on JR's AC electrified narrow-gauge lines. There have been cases where train speed-up has been restricted because high bending strain values tend to occur in the contact wire at the entrance of the dead section when a pantograph passes them. To reduce this strain, the author considered the sliding surface level differences caused by tension at both ends of the dead section and prepared an experimental dead section that reduced these differences. Pantograph running tests on this dead section confirmed a reduction in contact wire strain.
