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
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 been removed]
3.2 Abbreviations
For the purposes of this document, the terms and definitions and abbreviations given in EN 50238-1 and the
following apply.
AM Amplitude Modulation
CW Continuous Wave
DSL Digital Subscriber Line
FSK Frequency Shift Key
ISDN Integrated Services Digital Network
RMS root mean square
RST Rolling Stock
T Integration Time
int
4 General aspects
4.1 Interference mechanism
4.1.1 General
Axle counter detectors can be influenced in different ways, e.g. by magnetic fields or metallic parts in the vicinity
of wheels and bogies and thus close to the sensors. The influence of magnetic fields on the immunity of the
individual axle counter detector is dominant. In addition, the duration and/or repetition rate of interference and
the magnetic field strength are also relevant.
4.1.2 Axle counter detector
The compatibility limits in this document are based on the immunity of axle counter detectors and are specified
only for the axle counter detector – comprising the sensor on the rail and the detection circuits in the trackside
equipment as shown in Figure 1.
Figure 1 — Axle counter detector, schematic diagram
Axle counter detectors use various additional filter techniques and algorithms that reject interference pulses in
order to maximize reliability while maintaining safety.
EXAMPLES
— Nonlinear pulse duration filters which reject wheel pulses of a duration less than the minimum wheel pulse from a vehicle;
— rejection of wheel pulses in one channel if the axle counter is already in an occupied status.
4.1.3 Susceptibility of the detector on the rail
The precise area of susceptibility is product specific. The position of the measurement antenna has been chosen
to take into account the sensors listed in A.1.
The immunity (susceptibility limit) is defined as the magnetic field that can generate interference pulses or
corrupt the wheel pulses of one or more channels of the axle counter detector.
The magnetic coupling between the transmission and reception units of the axle counter sensor depends among
other things on the rail type. Large rail profiles like UIC 60 profiles, which provide higher attenuation of the
receiver voltage, are therefore more c
...
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