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A study on assessment of dropper life for conventional line speed-up

Last updated on 22 February 2013 2:22

In steady state, tensile load caused by contact wire dead load is applied to droppers. At the moment a train passes, the droppers are slackened by pantograph uplift force. After the train passes through, variable force is applied to the droppers and tightened again due to contact wire dead load.

Author(s): Lee K.;Cho Y.H.;Park Y.;Kwon S.Y.;Chang S.H

Organisation(s): Korea Railroad Research Institute ;

2011

South Korea

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