Image: Arcing pickup shoe
Description: The London Underground 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.
Title: Arcing pickup shoe
Credit: Own work
Author: Taken by SPSmiler
Permission: I, the copyright holder of this work, release this work into the public domain. This applies worldwide. In some countries this may not be legally possible; if so: I grant anyone the right to use this work for any purpose, without any conditions, unless such conditions are required by law.
Usage Terms: Public domain
License: Public domain
Attribution Required?: No
Image usage
The following page links to this image:
