CLC/TS 50238-3:2022
(Main)Railway applications - Compatibility between rolling stock and train detection systems - Part 3: Compatibility with axle counters
Railway applications - Compatibility between rolling stock and train detection systems - Part 3: Compatibility with axle counters
For the purpose of demonstrating compatibility between rolling stock and axle counter detectors, this document defines the interference limits and evaluation methods to verify rolling stock emissions. Wheel sensors and crossing loops are not covered by this document. This document gives recommended individual limits to be applied to establish compatibility between RST and all selected types of axle counter detectors, including any covered by national standards. The list of selected types of axle counters and their limits for compatibility are drawn on the basis of established performance criteria. It is expected that the trend for newly signalled interoperable lines will be fitted with types that meet the compatibility limits published in the TSI CCS Interfaces Document (ERA/ERTMS/033281). To ensure adequate operational availability, it is essential that the rolling stock complies with the defined limits; otherwise, the established availability of the valid output function of axle counter detectors may be compromised. NOTE The influences from metal parts or inductively coupled resonant circuits on the vehicle, eddy current brakes or magnetic brakes, are not covered by this document but are considered on the basis of national technical specifications. For wheel sensors and wheel detectors in other applications than axle counters but utilizing the same rail sensors and detectors, transient and continuous interference can be considered as equivalent to axle counter detectors or axle counter sensors.
Bahnanwendungen - Kompatibilität zwischen Fahrzeugen und Gleisfreimeldesystemen - Teil 3: Kompatibilität mit Achszähler
Applications ferroviaires - Compatibilité entre le matériel roulant et les systèmes de détection des trains - Partie 3: Compatibilité avec les compteurs d'essieux
Afin de démontrer la compatibilité entre le matériel roulant et les compteurs d'essieux, le présent document établit les limites d'interférence pour les détecteurs compteurs d'essieux ainsi que les méthodes d'évaluation pour vérifier les émissions générées par le matériel roulant. Les détecteurs de roues et les boucles de franchissement ne sont pas couverts par le présent document. Pour les capteurs et détecteurs de roues utilisés pour d'autres applications que les compteurs d'essieux, mais qui utilisent les mêmes capteurs de rails et circuits de détection, les interférences continues et transitoires peuvent être considérées comme un phénomène équivalent à des détecteurs compteurs d'essieux ou des capteurs compteurs d'essieux. Le présent document établit des limites recommandées à appliquer pour établir la compatibilité entre le MR et tous les types de détecteurs compteurs d'essieux sélectionnés, y compris ceux couverts par des normes nationales. La liste des types de détecteurs compteurs d'essieux sélectionnés et leurs limites pour la compatibilité ont été établies sur la base de critères de performance définis. Pour assurer une disponibilité opérationnelle adéquate, il est primordial que le matériel roulant respecte les limites définies. À défaut, la disponibilité établie de la fonction de sortie valide des détecteurs compteurs d'essieux pourra être compromise. L'impact des pièces métalliques ou des circuits résonants à couplage inductif sur le véhicule, les freins à courants de Foucault ou les freins magnétiques n'est pas couvert par le présent document.
Železniške naprave - Združljivost voznih sredstev in sistemov za detekcijo vlaka - 3. del: Združljivost s števci osi
Za potrebe dokazovanja združljivosti voznih sredstev in detektorjev števcev osi ta dokument opredeljuje mejne vrednosti motenj in metode za preverjanje emisij voznih sredstev. Ta dokument ne zajema senzorjev na kolesih in kretnic.
Ta dokument določa priporočene posamezne omejitve, ki jih je treba uporabljati pri določanju združljivosti med sistemi za zapisovanje podatkov (RST) in izbranimi vrstami detektorjev števcev osi, vključno s tistimi, ki jih zajemajo nacionalni standardi.
Seznam izbranih vrst števcev osi in njihovih omejitev glede združljivosti je sestavljen na podlagi uveljavljenih meril učinkovitosti. Pričakuje se, da bo trend na novo označenih medobratovalnih prog opremljen z vrstami, ki so skladne z omejitvami glede združljivosti, objavljenimi v dokumentu o vmesnikih (ERA/ERTMS/033281) tehničnih specifikacij za interoperabilnost (TSI CCS).
Da bi zagotovili ustrezno operativno razpoložljivost, je bistveno, da so vozna sredstva skladna z opredeljenimi omejitvami; v nasprotnem primeru je lahko ogrožena uveljavljena razpoložljivost izhodne funkcije detektorjev števcev osi.
OPOMBA: Vplivi kovinskih delov ali induktivno spojenih resonančnih tokokrogov na vozilu, zavore na vrtinčne tokove ali magnetne zavore so zunaj področja uporabe tega dokumenta, vendar se upoštevajo na podlagi nacionalnih tehničnih specifikacij.
Za senzorje na kolesih in detektorje koles pri drugih načinih uporabe, ki niso števci osi, vendar uporabljajo enake tirne senzorje in detektorje, je mogoče prehodne in neprekinjene motnje obravnavati kot enakovredne števcem osi ali senzorjem števcev osi.
General Information
Relations
Overview
CLC/TS 50238-3:2022 - "Railway applications - Compatibility between rolling stock and train detection systems - Part 3: Compatibility with axle counters" defines how to demonstrate electromagnetic compatibility (EMC) between rolling stock (RST) and axle counter detectors. The Technical Specification sets interference limits and evaluation methods for rolling‑stock emissions that could disturb axle‑counter sensors and detection circuits. Wheel sensors and crossing loops are excluded; metal parts, eddy‑current or magnetic brakes are considered under national rules.
Key topics and technical requirements
- Dominant field type: Limits focus on magnetic fields (electric fields considered insignificant for axle counters).
- Sources of interference: on‑vehicle electrical equipment (air‑gap coupling) and rail currents (vehicle/infrastructure return currents).
- Emission limits & evaluation: Recommended individual limits and measurement parameters are given (Annex A). Emissions testing and evaluation methods reference EN 50592 and immunity testing per EN 50617‑2.
- Integration time & duration effects: Susceptibility depends on both amplitude and duration of the magnetic field. Different limits apply for continuous vs short‑duration (transient) interference; reduced integration times are used for transient assessments.
- Availability margin: A 9 dB margin is included in limits to satisfy counting reliability and measurement uncertainties.
- Mitigation and compatibility cases: Mitigating measures may be accepted when limits are exceeded, but emissions > 25 dB above limits are considered unlikely to yield a credible compatibility case.
- Product‑specific susceptibility: Sensor geometry, rail profile (e.g., UIC 60), and antenna positioning affect coupling and vulnerability; measurement antenna placement is defined to reflect typical sensor layouts.
Practical applications - who uses this standard
- Rolling‑stock designers and vehicle EMC engineers - to design onboard equipment and cabling to meet axle‑counter compatibility limits.
- Signalling and trackside engineers - to assess detector immunity and specify acceptance criteria.
- Test laboratories and certification bodies - to perform emissions testing and demonstrate compliance using EN 50592 procedures.
- Infrastructure managers and operators - to evaluate fleet interoperability, retrofit risks and operational availability impacts.
- Project integrators for interoperable lines - to ensure rolling stock meets compatibility expectations for axle counters used on newly signalled routes.
Related standards
- EN 50238‑1 (Compatibility between RST and train detection systems - Part 1: General)
- CLC/TS 50238‑2 (Compatibility with track circuits)
- EN 50592 (Testing of rolling stock for EMC with axle counters)
- EN 50617‑2 (Axle counter immunity test specification)
- TSI CCS Interfaces Document (context for interoperable line equipment selection)
CLC/TS 50238‑3:2022 is a practical reference for ensuring axle‑counter reliability and avoiding spurious wheel pulses that could reduce operational availability.
Frequently Asked Questions
CLC/TS 50238-3:2022 is a technical specification published by CLC. Its full title is "Railway applications - Compatibility between rolling stock and train detection systems - Part 3: Compatibility with axle counters". This standard covers: For the purpose of demonstrating compatibility between rolling stock and axle counter detectors, this document defines the interference limits and evaluation methods to verify rolling stock emissions. Wheel sensors and crossing loops are not covered by this document. This document gives recommended individual limits to be applied to establish compatibility between RST and all selected types of axle counter detectors, including any covered by national standards. The list of selected types of axle counters and their limits for compatibility are drawn on the basis of established performance criteria. It is expected that the trend for newly signalled interoperable lines will be fitted with types that meet the compatibility limits published in the TSI CCS Interfaces Document (ERA/ERTMS/033281). To ensure adequate operational availability, it is essential that the rolling stock complies with the defined limits; otherwise, the established availability of the valid output function of axle counter detectors may be compromised. NOTE The influences from metal parts or inductively coupled resonant circuits on the vehicle, eddy current brakes or magnetic brakes, are not covered by this document but are considered on the basis of national technical specifications. For wheel sensors and wheel detectors in other applications than axle counters but utilizing the same rail sensors and detectors, transient and continuous interference can be considered as equivalent to axle counter detectors or axle counter sensors.
For the purpose of demonstrating compatibility between rolling stock and axle counter detectors, this document defines the interference limits and evaluation methods to verify rolling stock emissions. Wheel sensors and crossing loops are not covered by this document. This document gives recommended individual limits to be applied to establish compatibility between RST and all selected types of axle counter detectors, including any covered by national standards. The list of selected types of axle counters and their limits for compatibility are drawn on the basis of established performance criteria. It is expected that the trend for newly signalled interoperable lines will be fitted with types that meet the compatibility limits published in the TSI CCS Interfaces Document (ERA/ERTMS/033281). To ensure adequate operational availability, it is essential that the rolling stock complies with the defined limits; otherwise, the established availability of the valid output function of axle counter detectors may be compromised. NOTE The influences from metal parts or inductively coupled resonant circuits on the vehicle, eddy current brakes or magnetic brakes, are not covered by this document but are considered on the basis of national technical specifications. For wheel sensors and wheel detectors in other applications than axle counters but utilizing the same rail sensors and detectors, transient and continuous interference can be considered as equivalent to axle counter detectors or axle counter sensors.
CLC/TS 50238-3:2022 is classified under the following ICS (International Classification for Standards) categories: 29.280 - Electric traction equipment; 45.060.10 - Tractive stock. The ICS classification helps identify the subject area and facilitates finding related standards.
CLC/TS 50238-3:2022 has the following relationships with other standards: It is inter standard links to CLC/TS 50238-3:2019. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
You can purchase CLC/TS 50238-3:2022 directly from iTeh Standards. The document is available in PDF format and is delivered instantly after payment. Add the standard to your cart and complete the secure checkout process. iTeh Standards is an authorized distributor of CLC standards.
Standards Content (Sample)
SLOVENSKI STANDARD
01-marec-2022
Nadomešča:
SIST-TS CLC/TS 50238-3:2020
Železniške naprave - Združljivost voznih sredstev in sistemov za detekcijo vlaka -
3. del: Združljivost s števci osi
Railway applications - Compatibility between rolling stock and train detection systems -
Part 3: Compatibility with axle counters
Bahnanwendungen - Kompatibilität zwischen Fahrzeugen und Gleisfreimeldesystemen -
Teil 3: Kompatibilität mit Achszähler
Applications ferroviaires - Compatibilité entre le matériel roulant et les systèmes de
détection des trains - Partie 3: Compatibilité avec les compteurs d'essieux
Ta slovenski standard je istoveten z: CLC/TS 50238-3:2022
ICS:
03.220.30 Železniški transport Transport by rail
45.060.01 Železniška vozila na splošno Railway rolling stock in
general
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
TECHNICAL SPECIFICATION CLC/TS 50238-3
SPÉCIFICATION TECHNIQUE
TECHNISCHE SPEZIFIKATION January 2022
ICS 29.280; 45.060.10 Supersedes CLC/TS 50238-3:2019
English Version
Railway applications - Compatibility between rolling stock and
train detection systems - Part 3: Compatibility with axle counters
Applications ferroviaires - Compatibilité entre le matériel Bahnanwendungen - Kompatibilität zwischen Fahrzeugen
roulant et les systèmes de détection des trains - Partie 3: und Gleisfreimeldesystemen - Teil 3: Kompatibilität mit
Compatibilité avec les compteurs d'essieux Achszähler
This Technical Specification was approved by CENELEC on 2021-12-21.
CENELEC members are required to announce the existence of this TS in the same way as for an EN and to make the TS available promptly
at national level in an appropriate form. It is permissible to keep conflicting national standards in force.
CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus, the Czech Republic,
Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the
Netherlands, Norway, Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Turkey and the United Kingdom.
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2022 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Ref. No. CLC/TS 50238-3:2022 E
Contents Page
European foreword . 3
Introduction . 4
1 Scope . 5
2 Normative references . 5
3 Terms, definitions and abbreviations . 5
3.1 Terms and definitions . 5
3.2 Abbreviations . 6
4 General aspects . 6
4.1 Interference mechanism . 6
4.1.1 General . 6
4.1.2 Axle counter detector. 6
4.1.3 Susceptibility of the detector on the rail . 7
4.1.4 Sources of interference fields . 7
4.2 Availability margin . 8
4.3 Specific axle counter parameters . 8
5 Compatibility requirements . 8
5.1 General . 8
5.2 Short duration interference limits . 8
5.3 Mitigating arguments when limits are exceeded . 8
Annex A (normative) Rolling stock emission limits . 9
A.1 Emissions limits and evaluation parameters (narrow band) . 9
A.2 Weighting of short duration interference. 11
Bibliography . 13
Figure
Figure 1 — Axle counter detector, schematic diagram . 7
Tables
Table A.1 — Emission limits and evaluation parameters (narrow band) . 9
Table A.2 — Weighting of short duration interference (Tint according to Table A.1) . 11
European foreword
This document (CLC/TS 50238-3:2022) has been prepared by CLC/SC 9XA “Communication, signalling and
processing systems”, of Technical Committee CLC/TC 9X “Electrical and electronic applications for railways”.
This document supersedes CLC/TS 50238-3:2019.
CLC/TS 50238-3:2019:
— any normative references to the ERA document ERA/ERTMS/033281 have been removed;
— amended and new limits in Annex A.
This document is Part 3 in the following series:
— EN 50238-1, Railway applications – Compatibility between rolling stock and train detection systems –
Part 1: General;
— CLC/TS 50238-2, Railway applications – Compatibility between rolling stock and train detection systems –
Part 2: Compatibility with track circuits;
— CLC/TS 50238-3, Railway applications – Compatibility between rolling stock and train detection systems –
Part 3: Compatibility with axle counters.
Attention is drawn to the possibility that some of the elements of this document may be the subject of patent
rights. CENELEC shall not be held responsible for identifying any or all such patent rights.
Any feedback and questions on this document should be directed to the users’ national committee. A complete
listing of these bodies can be found on the CENELEC website.
Introduction
This document defines the interference limits and evaluation criteria for electromagnetic compatibility between
rolling stock and axle counter detectors.
The limits have been defined on the basis of a test specification defined in EN 50617-2 (laboratory tests).
This document defines:
— a set of interference limits for magnetic fields resulting from both rail current and equipment on board the
vehicles;
— evaluation criteria to verify rolling stock emissions and demonstrate compatibility with the interference limits
for magnetic fields;
— traceability of requirements (type of axle counter detectors considered for the limits).
In the relevant frequency range of the axle counter detectors, the magnetic field is dominant and only this type
of field is considered. Experience has shown that the effects of electric fields are insignificant and therefore not
considered.
1 Scope
For the purpose of demonstrating compatibility between rolling stock and axle counters, this document defines
the interference limits for axle counter detectors and evaluation methods to verify rolling stock emissions.
Wheel sensors and crossing loops are not covered by this document.
For wheel sensors and wheel detectors in other applications than axle counters but utilizing the same sensors
on the rail and detection circuits, transient and continuous interference can be considered as equivalent to axle
counter detectors or axle counter sensors.
This document gives recommended individual limits to be applied to establish compatibility between RST and
all selected types of axle counter detectors, including several covered by national standards.
The list of selected types of axle counter detectors and their limits for compatibility are drawn on the basis of
established performance criteria.
To ensure adequate operational availability, it is essential that the rolling stock complies with the defined limits;
otherwise, the established availability of the valid output function of axle counter detectors could be
compromised. The influences from metal parts or inductively coupled resonant circuits on the vehicle, eddy
current brakes or magnetic brakes, are not covered by this document.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content constitutes
requirements of this document. For dated references, only the edition cited applies. For undated references, the
latest edition of the referenced document (including any amendments) applies.
EN 50238-1, Railway applications - Compatibility between rolling stock and train detection systems - Part 1:
General
EN 50592, Railway applications - Testing of rolling stock for electromagnetic compatibility with axle counters
EN 50617-2:2015 , Railway Applications – Technical parameters of train detection systems for the
interoperability of the trans-European railway system – Part 2: Axle counters
3 Terms, definitions and abbreviations
3.1 Terms and definitions
For the purposes of this document, the terms and definitions given in EN 50238-1 and the following apply.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
— IEC Electropedia: available at https://www.electropedia.org/
— ISO Online browsing platform: available at https://www.iso.org/obp
3.1.1
axle counter detector
detector consisting of the axle counter sensor and of the detection circuit, which includes in general filters and
rectifiers
[SOURCE: EN 50617-2:2015 , 3.1.2]
As impacted by the corrigendum EN 50617-2:2015/AC:2016.
3.1.2
axle counter sensor
sensor head mounted in the track
[SOURCE: EN 50617-2:2015 , 3.1.3]
3.1.3
axle counter system
whole system including the axle counter detector with its sensor and the evaluation unit
[SOURCE: EN 50617-2:2015 , 3.1.4]
3.1.4
integration time
window size over which the root mean square (RMS) of the output of the band-pass filter is calculated
[SOURCE: EN 50617-2:2015 , 3.1.12, modified – The beginning of the sentence “parameter for evaluation
defined as the” has bee
...
The CLC/TS 50238-3:2022 standard is a critical document in the field of railway applications, specifically focusing on the compatibility between rolling stock and train detection systems, with an emphasis on axle counters. This standard plays a pivotal role in ensuring the safe and efficient operation of trains by defining the necessary interference limits and evaluation methods to assess rolling stock emissions that may impact axle counter detectors. One of the notable strengths of this standard is its comprehensive approach to defining specific compatibility limits for various types of axle counter detectors. By integrating established performance criteria into the guidelines, the document ensures that all selected types of axle counters are considered, thus promoting a broad application across different railway systems. The focus on compatibility not only enhances operational safety but also fosters interoperability, which is increasingly vital in modern rail transport. Furthermore, the standard's clarity regarding the confines of its scope is beneficial; it explicitly states that wheel sensors and crossing loops are not covered, allowing stakeholders to focus on axle counters. This delineation helps in avoiding confusion and sets clear expectations for implementation and compliance. The relevance of CLC/TS 50238-3:2022 is underscored by the expectation that newly signalled interoperable railway lines will incorporate axle counter systems that adhere to the compatibility limits laid out in this standard. This demonstrates its forward-thinking nature and alignment with evolving technologies in railway operations, particularly in ensuring that rolling stock meets the necessary limits to maintain the established functionality of axle counter detectors. Overall, the CLC/TS 50238-3:2022 standard is a vital resource for the railway sector, offering structured guidance that addresses critical compatibility issues while contributing to the overall safety and efficacy of train detection systems involving axle counters.
CLC/TS 50238-3:2022は、鉄道アプリケーションにおいて、振動装置と軸カウンタ検出器間の互換性を示すための重要な標準です。この文書は、振動装置と軸カウンタ検出器の間での干渉限界と、振動装置の排出を確認するための評価方法を定義しています。特に、推奨される個別の限界値が提供され、選定された全てのタイプの軸カウンタ検出器との互換性を確立するための指針となっています。 本標準の大きな強みは、全国の技術仕様に裏打ちされた既存の性能基準に基づいて、選定された軸カウンタのリストとその互換性の限界値を設定している点です。新たに信号化される相互運用性のあるラインには、 TSI CCSインターフェース文書で発表された互換性限界を満たすタイプの軸カウンタが搭載されることが期待されています。このことは、運行の可用性を確保する上での重要性を示しています。 さらに、本標準は、振動装置が定義された限界を遵守することが必要不可欠であり、これにより軸カウンタ検出器の有効出力機能の可用性が損なわれるリスクを回避できます。なお、金属部品や誘導結合共鳴回路、渦電流ブレーキまたは磁気ブレーキが及ぼす影響については、本文書ではカバーされていませんが、国の技術基準において考慮されるべきです。 総じて、CLC/TS 50238-3:2022は、鉄道産業における振動装置と軸カウンタ検出器の互換性を保証するための確かな基盤を提供しており、技術者や運用者にとって非常に関連性の高い標準となっています。
CLC/TS 50238-3:2022 표준은 철도 응용 분야에서 롤링 주식과 축 카운터 탐지 시스템 간의 호환성을 다루는 중요한 문서입니다. 이 표준은 롤링 주식과 축 카운터 감지기 간의 호환성을 입증하기 위해 필요한 간섭 한계와 평가 방법을 정의하고 있습니다. 특히, 이 문서에서는 롤링 주식의 배출을 검증하기 위한 권장 개별 한계를 제공하며, 이를 통해 다양한 유형의 축 카운터 감지기와 호환성을 establlish할 수 있도록 돕습니다. 이 표준의 강점은 다음과 같습니다. 첫째, 명확하게 설정된 성능 기준에 기반하여 호환할 축 카운터의 유형과 그 한계를 명시하고 있어, 실무자들이 적용할 수 있는 실질적인 기준을 제공합니다. 둘째, TSI CCS 인터페이스 문서(ERA/ERTMS/033281)에서 발표한 호환성 한계에 부합하는 유형의 감지기를 신규 신호화된 상호 운용선에 장착할 수 있도록 해줍니다. 이는 현대 철도 시스템에서의 신뢰성과 효율성을 높이는 데 기여합니다. 또한, 이 문서는 롤링 주식이 정의된 한계를 준수해야 운영 가능성을 보장할 수 있다는 점을 강조합니다. 이는 축 카운터 감지기의 유효 출력 기능의 안정성을 유지하는 데 필수적입니다. 그러나 휠 센서와 크로싱 루프는 이 문서의 범위에 포함되지 않고, 이는 국가 기술 사양에 따라 고려될 사항이라는 점도 주의 깊게 다루고 있습니다. 결론적으로, CLC/TS 50238-3:2022 표준은 현대 철도 응용 시스템에서의 호환성과 성능 기준을 명확히 하고, 관련 산업 종사자들에게 유용한 정보를 제공하여 안전하고 효율적인 철도 운영을 가능하게 합니다.
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