EVS-EN 50121-3-1:2015

This European Standard specifies the emission and immunity requirements for all types of rolling stock. It covers traction stock, hauled stock and trainsets including urban vehicles for use in city
streets. The frequency range considered is from 0 Hz (d.c.) to 400 GHz. No measurements need to be performed at frequencies where no requirement is specified.
The scope of this part of the standard ends at the interface of the rolling stock with its respective energy inputs and outputs. In the case of locomotives, trainsets, trams etc., this is the current collector (pantograph, shoe gear). In the case of hauled stock, this is the a.c. or d.c. auxiliary power connector.
However, since the current collector is part of the traction stock, it is not entirely possible to exclude the effects of this interface with the power supply line. The slow moving test has been designed to
minimize these effects.
This European standard specifies the emission limits of the rolling stock to the outside world.