prEN 50121-2

Railway applications - Electromagnetic compatibility - Part 2: Emission of the whole railway system to the outside world

Scope

This document is intended to define the electromagnetic environment of the whole railway system including
urban mass transit and light rail system. It describes the measurement method to verify the emissions, and
gives the cartography values of the fields most frequently encountered.
This document specifies the emission limits of the whole railway system to the outside world.
The emission parameters refer to the particular measuring points defined in Clause 5. These emissions
should be assumed to exist at all points in the vertical planes which are 10 m from the centre lines of the
outer electrified railway tracks, or 10 m from the fence of the substations.
Also, the zones above and below the railway system may be affected by electromagnetic emissions and
particular cases need to be considered individually.
These specific provisions need to be used in conjunction with the general provisions in EN 50121-1.
For existing railway lines, it is assumed that compliance with the emission requirements of EN 50121-3-1,
EN 50121-3-2, EN 50121-4 and EN 50121-5 will ensure the compliance with the emission values given in this
part.
For newly built railway systems it is best practice to provide compliance to the emission limits given in this
part of the standard (as defined in the EMC plan according to EN 50121-1).