What is PD CLC/TS 50238‑2 about?
PD CLC/TS 50238‑2 is the second part of a multi-series of standards. PD CLC/TS 50238‑2 defines, for the purpose of ensuring compatibility between rolling stock and track circuits, the limits for interference current emissions from rolling stock. The measurement and evaluation methods for verifying the conformity of rolling stock to these limits are presented in a dedicated annex.
PD CLC/TS 50238‑2 gives guidance on the derivation of interference current limits specified for rolling stock and defines measurement methods and evaluation criteria in a dedicated annex.
PD CLC/TS 50238‑2 defines:
- A set of interference current limits for RST (Rolling Stock) applicable for each of the following types of traction system: DC (750 V, 1,5 kV and 3 kV),16,7 Hz AC, 50 Hz AC
- Methodology for the demonstration of compatibility between rolling stock and track circuits
- Measurement method to verify interference current limits and evaluation criteria.
Who is PD CLC/TS 50238‑2 for?
PD CLC/TS 50238‑2 on compatibility with track circuits is useful for:
- Railway engineers
- Railway rolling stocks manufacturers
- Personnel of signalling and processing systems
Why should you use PD CLC/TS 50238‑2?
The compatibility tests between rolling stock and track circuits are necessary to verify conformity to the interference current limits for all train configurations.
PD CLC/TS 50238‑2 describes the general aspects of interference current limits for rolling stock (RST) including the highest frequency range occupied by existing track circuits and also provides information on the application of Interference current limits to RST design.
PD CLC/TS 50238‑2 explains the evaluation methods and analysis of rolling stock Interference and criteria for compatibility between rolling stock and train detection systems so that they do not affect the designed behaviour of the track circuit.
Overall, PD CLC/TS 50238‑2 helps you with the functioning of track circuits because it is used to detect the information to control train speed and ensure safe operation, by means of the transmission of speed commands to wayside signalling devices and to the trains.
What’s changed since the last update?
PD CLC/TS 50238‑2:2020 supersedes PD CLC/TS 50238‑2:2015. PD CLC/TS 50238‑2:2020 includes some technical changes with respect to PD CLC/TS 50238‑2:2015. These include:
- The interference current limits for RST have been updated in the normative