E DIN EN 50728 VDE 0115-728:2024-04

This document defines the measurement and evaluation methods of rolling stock interference current emissions
to demonstrate compatibility with track circuits. This includes rolling stock with or without traction equipment.
The established limits for compatibility are defined in ERA/ERTMS/033281, PD CLC/TS 50238-2 or NNTRs as
current flowing between the vehicle and the electric traction power supply system that can disturb the track
circuit receiver, as part of the track circuit system. Additionally, the referred documents can define a minimum
rolling stock impedance in order to guarantee compatibility between the electric traction power supply system
and track circuits.
This document is relevant to the interference current limits defined in the ‘frequency management’ for track
circuits as defined in ERA/ERTMS/033281. It is also applicable to the demonstration of compatibility with all
other types of track circuits which have established compatibility according to EN 50617-1. Finally, the
methodology defined in this document can also be applied to other track circuit types, including those for which
the only requirements are defined in National Notified Technical Rules.