Proposal For A Guide To Earthing And Bonding Of 25kV Electrified Railways
The IET Standards team are looking at a proposal for a Guide to Earthing and Bonding of 25kV Electrified Railways and are looking for comments. The Scope of 25kV Railway Earthing and Bonding Requirements This guide aims to assist train operators, railway designers and installation contractors in adopting a harmonised approach towards E&B design philosophy for 25kV railway infrastructure. This will be in line with implementing a common earth system formed by bonding lineside assets and structures to the traction return system, effectively forming a low impedance meshed earth network. The guide will therefore undertake to explain the principles of a common earth system (traction and non-traction) which is able to provide a robust and low impedance path to earth. Electrical safety is required…