1 Scope
This document specifies the technical parameters of track circuits associated with
the interference current emissions limits for RST in the context of interoperability defined in the form of Frequency Management in
ERA/ERTMS/033281 v4.0. The limits for compatibility between rolling stock and track circuits
addressed in this document allow provision for known interference phenomena linked
to traction power supply including associated protection (over voltage, short-circuit
current and basic transient effects like in-rush current and power cut-off), and other
known sources of interference.
This document is intended to be used to assess compliance of track circuits and other
forms of train detection systems using the rails as part of their detection principles,
in the context of the European Directive on the interoperability of the trans-European
railway system and the associated technical specification for interoperability relating
to the control-command and signalling track-side subsystems.
The document describes technical parameters to consider for achieving the compatibility
of the track circuit with the emissions limits defined in the frequency management
for rolling stock (ERA/ERTMS/033281 v4.0). These parameters are structured and allocated according to their basic
references as follows:
technical track circuit parameters;