And here's a picture of one of the blighters (obviously train drivers hate derailers - they bring only sorrow).
This photo was taken at an EMU maintenance depot. The derailer is the yellow plate lying along the running rail - and is in the "career restructuring" position. Note the small CCTV camera which is pointed roughly at the device. This depot has been modernised and all train movements are controlled by a Yard Supervisor sitting behind a small signalling panel - the camera gives him a chance to check that the device is clear of the railhead before authorising a train movement towards the shed.
All roads into the shed have derailer protection, because although the speed in the shed is only 3MPH max, there are fitters/techs workling in/under/on top of & between vehicles. It's better to drop an errant unit into the dirt rather than have it hit a train that guys are working on the outside of.
HTH, BW
Last edited by Beeyar Wunby; 5th August 2020 at 15:11.
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