These substantial bits of kit are mounted on the footbridge at Prestonpans station, one above each track. They can detect faulty pantographs even when the train is passing at speed. Thanks to Andy Arthur for the information.

Location: Prestonpans

Company: North British Railway

Photographer: David Panton

Contact photographer: David Panton

Contact editor

Date: 25/01/2020

Image number: 72075

Other photographs of Prestonpans on RailScot