File:Arcing pickup shoe.jpg

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Arcing_pickup_shoe.jpg ‎(800 × 573 pixels, file size: 115 KB, MIME type: image/jpeg)

Summary

The <a href="//commons.wikimedia.org/wiki/London_Underground" title="London Underground">London Underground</a> uses a 4-rail system in which the electrical return is isolated from the running rails (the rails used by the train's wheels). The arc seen here on a District Line D Stock leaving Ealing Common Station are quite normal and occur when the electric power collection "shoes" of a train that is motoring (i.e. drawing power) reach the end of a section of electric power rail.

Licensing

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File history

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Date/TimeThumbnailDimensionsUserComment
current07:34, 5 January 2017Thumbnail for version as of 07:34, 5 January 2017800 × 573 (115 KB)127.0.0.1 (talk)The <a href="//commons.wikimedia.org/wiki/London_Underground" title="London Underground">London Underground</a> uses a 4-rail system in which the electrical return is isolated from the running rails (the rails used by the train's wheels). The arc seen here on a District Line D Stock leaving Ealing Common Station are quite normal and occur when the electric power collection "shoes" of a train that is motoring (i.e. drawing power) reach the end of a section of electric power rail.
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