SIST-TS 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
SIST-TS CLC/TS 50238-3:2022 is a technical specification published by the Slovenian Institute for Standardization (SIST). 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.
SIST-TS CLC/TS 50238-3:2022 is classified under the following ICS (International Classification for Standards) categories: 03.220.30 - Transport by rail; 29.280 - Electric traction equipment; 45.060.01 - Railway rolling stock in general; 45.060.10 - Tractive stock. The ICS classification helps identify the subject area and facilitates finding related standards.
SIST-TS CLC/TS 50238-3:2022 has the following relationships with other standards: It is inter standard links to SIST-TS CLC/TS 50238-3:2020. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
SIST-TS CLC/TS 50238-3:2022 is associated with the following European legislation: EU Directives/Regulations: TP277. When a standard is cited in the Official Journal of the European Union, products manufactured in conformity with it benefit from a presumption of conformity with the essential requirements of the corresponding EU directive or regulation.
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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 standard SIST-TS CLC/TS 50238-3:2022 provides a comprehensive framework for assessing the compatibility between rolling stock and axle counter detectors within railway applications. Its primary focus is to ensure that rolling stock meets defined emission limits, thereby maintaining operational integrity when interfaced with various axle counter systems. One of the key strengths of this standard is its clear delineation of interference limits and evaluation methods, which are critical in verifying the emissions of rolling stock. By establishing recommended individual limits applicable to various axle counter detectors, the standard facilitates a robust compatibility assessment across a range of devices, including those aligned with national standards. This breadth of coverage enhances the standard’s relevance in a diverse and evolving railway environment. Moreover, the standard emphasizes the importance of compliance with these defined limits to preserve the functional reliability of axle counter detectors. It recognizes that any deviations could compromise the operational availability of these systems, which underscores its practical significance in real-world railway operations. While the document does not cover wheel sensors and crossing loops, it effectively lays out the expectations regarding the types of axle counters to be installed on newly signalled interoperable lines, in alignment with compatibility limits in the TSI CCS Interfaces Document. This forward-thinking aspect ensures that upcoming railway systems will adhere to established performance criteria, promoting future interoperability. Overall, SIST-TS CLC/TS 50238-3:2022 stands out as a pivotal resource for stakeholders in the rail industry, bridging the gap between rolling stock and axle counting technologies, while providing necessary guidelines for maintaining the safety, reliability, and efficiency of railway operations. Its focus on compatibility between rolling stock and axle counter detectors is vital for enhancing railway technology integration and operational success.
SIST-TS CLC/TS 50238-3:2022 표준은 철도 응용 분야에서 차량과 축 계수기 간의 호환성을 다루고 있습니다. 이 문서는 차량과 축 계수기 탐지기 간의 호환성을 입증하기 위한 간섭 한계 및 평가 방법을 정의하고 있으며, 이는 차량에서 발생하는 방출을 검증하는 데 매우 중요한 역할을 합니다. 이 표준의 강점 중 하나는 다양한 유형의 축 계수기 탐지기와 RST(rolling stock and train detection systems) 간의 호환성을 설정하기 위한 개인별 권장 한계를 명확하게 제공한다는 점입니다. 이 권장 사항은 국가 표준을 포함하여 각 유형을 기반으로 하여 마련되었습니다. 이를 통해 새로운 신호화된 인터오퍼러블 라인에 설치될 기기가 TSI CCS 인터페이스 문서에서 발표된 호환성 한계에 부합하도록 할 수 있습니다. 또한, 이 문서는 차량이 정의된 한계를 준수함으로써 안정적인 운영 가능성을 확보하는 것이 필수적임을 강조합니다. 규정된 한계를 초과할 경우 축 계수기 탐지기의 유효 출력 기능의 가용성이 저해될 수 있습니다. 그러나 이 문서에서는 차량의 금속 부품이나 유도결합 공진 회로, 에디 전류 제동 장치 또는 자기 제동 장치의 영향은 다루지 않으며, 이는 국가 기술 사양에 따라 별도로 고려됩니다. 결론적으로, SIST-TS CLC/TS 50238-3:2022 표준은 축 계수기와의 호환성을 보장하기 위해 매우 중요하며, 철도 분야의 안전과 신뢰성을 높이는 데 기여하는 핵심 문서입니다. 이 문서는 다른 응용 분야의 바퀴 센서 및 탐지기도 축 계수기 또는 축 센서와 동등한 간섭으로 간주할 수 있는 사항에 대해 논의합니다. 이러한 내용은 철도 시스템의 지속 가능성과 효율성을 높이는 데 기여할 수 있습니다.
SIST-TS CLC/TS 50238-3:2022は、鉄道アプリケーションにおいて、車両（Rolling Stock）と軸カウンター（Axle Counters）検出システムとの互換性を示すための標準化文書です。この文書は、車両の排出を検証するための干渉限界と評価方法を定義しており、特に軸カウンター検出器との互換性を確保するための重要な基準を提供します。 このスタンダードの強みは、異なるタイプの軸カウンター検出器との相互運用性を確立するための具体的な推奨限界を提供している点です。国の標準に基づく検出器を含む、選ばれた全ての軸カウンター検出器との互換性を確保するために必要な性能基準を考慮しています。この明確な枠組みは、将来的に相互運用性が求められる鉄道ラインにおいても適用可能であり、運行の信頼性を高める一助となります。 さらに、この文書は、運行の可用性を確保するために、車両が設定された限界を遵守する必要があるという点についても強調しています。これにより、軸カウンター検出器の有効出力機能が損なわれるリスクが軽減され、全体としての運行の安全性が向上します。 ただし、金属部品や誘導結合共振回路、渦電流ブレーキや磁気ブレーキに関する影響は本書でカバーされていませんが、国家技術仕様に基づいて考慮されています。また、軸カウンターとは異なるアプリケーションにおけるホイールセンサーやホイールドテクターについても同様に、干渉に関する取り扱いが示唆されています。 このように、SIST-TS CLC/TS 50238-3:2022は、鉄道システムの安全性と効率性を向上させるための重要な指針を提供するものであり、鉄道業界における互換性の確立において極めて重要な役割を果たしています。
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