prEN 50617-1
(Main)Railway applications - Technical parameters of train detection systems for the interoperability of the trans-European railway system - Part 1: Track circuits
Railway applications - Technical parameters of train detection systems for the interoperability of the trans-European railway system - Part 1: Track circuits
This European Standard specifies the technical parameters of track circuits associated with the disturbing current emissions limits for RST in the context of interoperability defined in the form of Frequency Management. The limits for compatibility between rolling stock and track circuits currently proposed in this standard allow provision for known interference phenomena linked to traction power supply and associated protection (over voltage, short-circuit current and basic transient effects like inrush current and power cut-off). These effects are assessed using modelling tools that have been verified by the past European research project RAILCOM. This European Standard is intended to be used to assess compliance of track circuits equipment and other forms of train detection systems using the rails as part of their detection principles, in the context of the Interoperability Directive and the associated technical specification for interoperability relating to the control-command and signalling track-side subsystems. The European Standard 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. These parameters are structured and allocated according to their basic references as follows: - Technical track circuit parameters - Train based parameters - Track based parameters - Environmental and other parameters including EMC Each parameter is defined by a short general description, the definition of the requirement, the relation to other standards and a procedure to show the fulfilment of the requirement as far as necessary. An overview on the safety relevance of each parameter is given in the context of this European Standard in a separate table. NOTE The allocated bands for track circuits and emission limits for rolling stock defined in the Frequency Management are currently used as input information to define mandatory requirements to be stated in index 77 of CCS TSI. The evaluation is conducted by the European Railway Agency. The immunity limits of the track circuits installed on non-interoperable lines, or on interoperable lines built before the publication date of this document, are not defined in this European Standard and remain the responsibility of individual infrastructure managers, NSAs and/or suppliers of train detection systems. In this case, the limits for compatibility are usually given in the infrastructure registers and/or the notified national rules. This European Standard is applicable to track circuit installed on all traction power supply lines, including non-electrified lines. However, for track circuit intended to be installed only on non-electrified lines, some parameters may be not applicable.
Bahnanwendungen - Technische Parameter von Gleisfreimeldesystemen für die Interoperabilität des transeuropäischen Eisenbahnsystems - Teil 1: Gleisstromkreise
Applications ferroviaires - Paramètres techniques des systèmes de détection des trains pour lInteropérabilité du système ferroviaire transeuropéen - Partie 1: Circuits de voie
Železniške naprave - Tehnični parametri sistemov za ugotavljanje lokacije vlakov, ki zagotavljajo medobratovalnost vseevropskega železniškega sistema - 1. del: Tirni tokokrog
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
oSIST prEN 50617-1:2022
01-marec-2022
Železniške naprave - Tehnični parametri sistemov za ugotavljanje lokacije vlakov,
ki zagotavljajo medobratovalnost vseevropskega železniškega sistema - 1. del:Tirni tokokrog
Railway applications - Technical parameters of train detection systems for the
interoperability of the trans-European railway system - Part 1: Track circuits
Bahnanwendungen - Technische Parameter von Gleisfreimeldesystemen für die
Interoperabilität des transeuropäischen Eisenbahnsystems - Teil 1: Gleisstromkreise
Applications ferroviaires - Paramètres techniques des systèmes de détection des trains
pour lInteropérabilité du système ferroviaire transeuropéen - Partie 1: Circuits de voie
Ta slovenski standard je istoveten z: prEN 50617-1ICS:
45.020 Železniška tehnika na Railway engineering in
splošno general
oSIST prEN 50617-1:2022 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
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oSIST prEN 50617-1:2022
EUROPEAN STANDARD DRAFT
prEN 50617-1
NORME EUROPÉENNE
EUROPÄISCHE NORM
February 2022
ICS 29.260.99 Will supersede EN 50617-1:2015 and all of its
amendments and corrigenda (if any)
English Version
Railway applications - Technical parameters of train detection
systems for the interoperability of the trans-European railway
system - Part 1: Track circuits
Applications ferroviaires - Paramètres techniques des Bahnanwendungen - Technische Parameter von
systèmes de détection des trains pour l¿Interopérabilité du Gleisfreimeldesystemen für die Interoperabilität des
système ferroviaire transeuropéen - Partie 1: Circuits de transeuropäischen Eisenbahnsystems - Teil 1:
voie GleisstromkreiseThis draft European Standard is submitted to CENELEC members for enquiry.
Deadline for CENELEC: 2022-04-29.
It has been drawn up by CLC/SC 9XA.
If this draft becomes a European Standard, CENELEC members are bound to comply with the CEN/CENELEC Internal Regulations which
stipulate the conditions for giving this European Standard the status of a national standard without any alteration.
This draft European Standard was established by CENELEC in three official versions (English, French, German).
A version in any other language made by translation under the responsibility of a CENELEC member into its own language and notified to
the CEN-CENELEC Management Centre has the same status as the official versions.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.Recipients of this draft are invited to submit, with their comments, notification of any relevant patent rights of which they are aware and to
provide supporting documentation.Warning : This document is not a European Standard. It is distributed for review and comments. It is subject to change without notice and
shall not be referred to as a European Standard.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.
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Contents Page
Foreword 4
Introduction 6
1 Scope 7
2 Normative references 7
3 Terms, definitions and abbreviations 8
3.1 Terms and definitions 8
3.2 Abbreviations ...................................................................................................................................... 10
4 Description of train detection system 115 Safety relevance of parameters 13
6 Technical track circuit parameters 13
6.1 Dynamic shunt impedance ................................................................................................................ 13
6.1.1 General ................................................................................................................................................ 13
6.1.2 Requirements ...................................................................................................................................... 14
6.2 TC non-detection zone ....................................................................................................................... 14
6.2.1 General ................................................................................................................................................ 14
6.2.2 Requirements ...................................................................................................................................... 14
6.3 Track circuit length............................................................................................................................. 14
6.3.1 General ................................................................................................................................................ 14
6.3.2 TC Minimum length of detection - Requirement ............................................................................. 14
6.3.3 TC maximum length of detection - Requirement ............................................................................ 15
6.4 Broken rail detection .......................................................................................................................... 15
6.4.1 General ................................................................................................................................................ 15
6.4.2 Requirements ...................................................................................................................................... 15
6.5 IRJ failure detection ........................................................................................................................... 16
6.5.1 General ................................................................................................................................................ 16
6.5.2 Requirement ........................................................................................................................................ 16
6.6 Frequency management and relevant parameters of the track circuit ......................................... 16
6.6.1 Frequencies and immunity limits ...................................................................................................... 16
6.6.2 Validation of immunity ....................................................................................................................... 17
6.6.3 Number of operational channels ....................................................................................................... 22
6.6.4 Separation between operational channels / channel bandwidth ................................................... 22
6.7 Coding ................................................................................................................................................. 23
6.7.1 General ................................................................................................................................................ 23
6.7.2 Type of coding .................................................................................................................................... 23
6.7.3 Requirements ...................................................................................................................................... 24
6.8 Response of the receiver to transient disturbances ....................................................................... 24
6.8.1 General ................................................................................................................................................ 24
6.8.2 Switched sinusoidal signal ................................................................................................................ 25
6.8.3 Other signals ....................................................................................................................................... 26
6.8.4 Validation of the response of the receiver to transient disturbances ........................................... 27
6.9 RAMS ................................................................................................................................................... 27
6.9.1 Reliability ............................................................................................................................................. 27
6.9.2 Availability ........................................................................................................................................... 27
6.9.3 Maintainability ..................................................................................................................................... 28
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6.9.4 Safety ................................................................................................................................................... 28
6.9.5 Validation of all RAMS parameters ................................................................................................... 29
7 Train based parameter – Maximum allowed shunt impedance 297.1 General ................................................................................................................................................ 29
7.2 Requirements ...................................................................................................................................... 29
8 Track based parameters 308.1 Total impedance of the track ............................................................................................................. 30
8.1.1 General ................................................................................................................................................ 30
8.1.2 Requirements ...................................................................................................................................... 31
8.2 Rail to Earth impedance ..................................................................................................................... 31
8.2.1 General ................................................................................................................................................ 31
8.2.2 Limits and requirements .................................................................................................................... 32
8.2.3 Validation ............................................................................................................................................. 32
8.3 Insulation value of IRJ........................................................................................................................ 32
8.3.1 General ................................................................................................................................................ 32
8.3.2 Requirements and validation ............................................................................................................ 33
8.4 Type of sleepers / track structure ..................................................................................................... 33
8.4.1 General ................................................................................................................................................ 33
8.4.2 Definition of the parameter ................................................................................................................ 34
8.4.3 Requirement and validation .............................................................................................................. 34
8.5 Ballast resistance ............................................................................................................................... 34
8.5.1 General ................................................................................................................................................ 34
8.5.2 Definition of the parameter ................................................................................................................ 34
8.5.3 Requirements for validation .............................................................................................................. 35
8.5.4 Requirements and validation ............................................................................................................ 35
8.6 Unbalance of the return current ........................................................................................................ 35
8.6.1 General ................................................................................................................................................ 35
8.6.2 Requirements and validation ............................................................................................................ 35
9 Environmental and other parameters 369.1 Signalling power supply quality with respect to availability ......................................................... 36
9.1.1 General ................................................................................................................................................ 36
9.1.2 Requirements and validation ............................................................................................................ 36
9.2 Traction power supply quality ........................................................................................................... 36
9.2.1 General ................................................................................................................................................ 36
9.2.2 Definition of the parameter ................................................................................................................ 37
9.2.3 Requirements and validation ............................................................................................................ 37
9.3 Amount of sand .................................................................................................................................. 38
9.3.1 General ................................................................................................................................................ 38
9.3.2 Definition of parameter ...................................................................................................................... 38
9.3.3 Requirements for validation .............................................................................................................. 38
9.4 Weather, ice and other environmental conditions .......................................................................... 39
9.4.1 Temperature ........................................................................................................................................ 39
9.4.2 Pressure/Airflow ................................................................................................................................. 39
9.4.3 Humidity .............................................................................................................................................. 40
9.4.4 Precipitation ........................................................................................................................................ 40
9.4.5 Solar radiation ..................................................................................................................................... 41
9.4.6 Protection level (IP) ............................................................................................................................ 41
9.4.7 Vibrations / shock ............................................................................................................................... 41
9.5 EMC ...................................................................................................................................................... 42
9.5.1 General ................................................................................................................................................ 42
9.5.2 Requirement and validation for EMC with respect to vehicles ...................................................... 42
9.5.3 Requirement and validation for EMC with radio-transmitters ....................................................... 42
9.6 Requirement and validation for overvoltage protection (including indirect lightning effects) .. 42
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Annex A (informative) Guidance for safety relevance of parameters 43
Annex B (informative) Scenarios for non-detection zone 45
Annex C (informative) Track circuit length 51
Annex D (informative) Scenarios for broken rail Relation Track circuit – Broken rail detection 54
Annex E (informative) Frequency management – User Manual 58Annex F (informative) Example of elements of maintenance for existing track circuits 59
Annex G (informative) Example of management of shunt impedance 63Annex H (informative) Rail to ground impedance: Track circuit effects 65
Annex I (informative) Example of mechanical test for IRJ 68
Annex J (informative) Example of existing requirement for the type of sleepers / track structure 71
Annex K (informative) Out of Band Limits (OOB) proposal 73Annex ZZ (informative) Relationship between this European standard and the Essential
Requirements of EU Directive 2016/797/EC aimed to be covered 78Bibliography 81
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Foreword
This document (prEN 50617-1:2022) has been prepared by CLC/SC 9XA “Communication, signalling and
processing systems” of CLC/TC 9X “Electrical and electronic applications for railways”.
This document is currently submitted to the Enquiry.The following dates are fixed:
— latest date by which the existence of (doa) dor + 6 months
this document has to be announced
at national level
— latest date by which this document has to be (dop) dor + 12 months
implemented at national level by publication of
an identical national standard or by
endorsement
— latest date by which the national standards (dow) dor + 36 months
conflicting with this document have to (to be confirmed or
be withdrawn modified when voting)
This document will supersede EN 50617-1:2015.
The significant technical changes with respect to EN 50617-1:2015 are the following:
— Clause 6: Technical parameters have been enhanced to provide the requirements to demonstrate
compliance with the Frequency Management published in ERA/ERTMS/033281;— Clause 7: It is now amended and consistent with ERA/ERTMS/033281;
— Clause 8: Track parameters have been re-defined;
— Clause 9 has been enhanced with practical examples;
— Annex A: Parameters are revisited for consistency;
— Annex E: New Table has been added for parameters of track circuits which are already defined as
compatible with the Frequency Management in ERA/ERTMS/033281. A subclause is introduced to define
the link between the current standard and the new standard being developed for Measurements of RST
emissions for compatibility with track circuits by SC9XB/WG34;— Annex F “Vehicle Impedance / guidance for RST design to support the FrM” has been deleted,
consequently the Annexes G to K have been renumbered as Annexes F to J;— New Annex K: New informative annex which defines proposed Out of Band Frequency Limits for 25 kV
50 Hz and DC power networks.— Annex L has been deleted;
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This document has been prepared under a Standardization Request given to CENELEC by the European
Commission and the European Free Trade Association, and supports essential requirements of EU Directive(s) /
Regulation(s).For relationship with EU Directive(s) / Regulation(s), see informative Annex ZZ, which is an integral part of this
document.EN 50617, Railway applications – Technical parameters of train detection systems, will consist of
— Part 1: Track circuits;— Part 2: Axle counters.
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Introduction
The working group SC9XA WGA4-2 has developed the limits for electromagnetic compatibility between rolling
stock and train detection systems, specifically track circuits and axle counter systems and correspondingly
published two technical specifications CLC/TS 50238-2 and CLC/TS 50238-3. These limits and associated
measurement methods are based on preferred existing systems (as defined in CLC/TS 50238-2 and
CLC/TS 50238-3) which are well established and still put forward for signalling renewals by infrastructure
managers.To meet the requirements for compatibility between train detection systems and rolling stock in the future and to
achieve interoperability and free movement within the European Union, ERA/ERTMS/033281 defines the
relevant parameters for compatibility with track circuits and axle counter systems.
The train detection systems, track circuits and axle counters are an integral part of the CCS trackside subsystem
in the context of the Rail Interoperability Directive. The relevant technical parameters are enumerated in the CCS
and LOC&PAS TSI and specified in the mandatory Specification (ERA/ERTMS/033281). This document refers
whenever needed to this Specification. Although the demand for FrM is driven by Interoperability requirements, it
is independent from the drive to introduce systems like ERTMS level 3 or level 2.
This document is based on the current understanding of the railway experts represented at WGA4-2 that track
circuits and axle counter systems will continue to be the essential two train detection systems for the foreseeable
future.The published specification CLC/TS 50238-2 can be used to ascertain conformity of individual train detection
systems to the requirements of the TSIs, that will be in place for the parameters still declared “open points” in
ERA/ERTMS/033281.In this document, the defined parameters are structured and allocated according to their basic references as
follows:— track circuit system parameters;
— train based parameters;
— track based parameters;
— environmental and other parameters.
Where possible, the parameters as defined are consistent with other European Standards.
Each parameter is defined by a short general description, the definition of the requirement, the relation to other
standards and a procedure to show the fulfilment of the requirement as far as necessary. An overview of the
safety relevance of each parameter is given – in the context of this document – in a separate table.
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1 Scope
This document specifies the technical parameters of track circuits associated with the disturbing current
emissions limits for RST in the context of interoperability defined in the form of Frequency Management in
ERA/ERTMS/033281. 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 and associated
protection (over voltage, short-circuit current and basic transient effects like in-rush current and power cut-off).
This document is intended to be used to assess compliance of track circuits equipment 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). These
parameters are structured and allocated according to their basic references as follows:
— Technical track circuit parameters;— Train based parameters;
— Track based parameters;
— Environmental and other parameters including EMC.
Each parameter is defined by a short general description, the definition of the requirement, the relation to other
standards and a procedure to show the fulfilment of the requirement as far as necessary. An overview of the
safety relevance of each parameter is given – in the context of this document – in a separate table.
The immunity limits of the track circuits installed on non-interoperable lines, or on interoperable lines built before
the publication date of this document, are not defined in this document and remain the responsibility of individual
infrastructure managers, NSAs and/or suppliers of train detection systems. In this case, the limits for
compatibility are usually given in the infrastructure registers and/or the notified national rules.
This document is applicable to track circuits installations on all lines, including non-electrified lines. However, for
track circuits intended to be installed only on non-electrified lines, some parameters may be not applicable.
2 Normative referencesThe 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 13146-5:2012, Railway applications - Track - Test methods for fastening systems - Part 5: Determination of
electrical resistanceEN 50121-4:2016, Railway applications - Electromagnetic compatibility - Part 4: Emission and immunity of the
signalling and telecommunications apparatusEN 50122-1:2011, Railway applications - Fixed installations - Electrical safety, earthing and the return circuit -
Part 1: Protective provisions against electric shockAs impacted by EN 50121-4:2016/A1:2019.
As impacted by EN 50122-1:2011/A1:2011, EN 50122-1:2011/A2:2016, EN 50122-1:2011/A3:2016,
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EN 50122-2:2010, Railway applications - Fixed installations - Electrical safety, earthing and the return circuit -
Part 2: Provisions against the effects of stray currents caused by d.c. traction systems
EN 50122-3:2010, Railway applications - Fixed installations - Electrical safety, earthing and the return circuit -
Part 3: Mutual Interaction of a.c. and d.c. traction systemsEN 50124-2:2017, Railway applications - Insulation coordination - Part 2: Overvoltages and related protection
EN 50125-3:2003, Railway applications - Environmental conditions for equipment - Part 3: Equipment for
signalling and telecommunicationsEN 50126-1:2017, Railways applications — The specification and demonstration of Reliability, Availability,
Maintainability and Safety (RAMS) – Part 1: Generic RAMS processEN 50126-2:2017, Railways applications — The specification and demonstration of Reliability, Availability,
Maintainability and Safety (RAMS) – Part 2: Systems approach to safetyEN 50128:2011, Railway applications - Communication, signalling and processing systems - Software for railway
control and protection systemsEN 50129:2018, Railway applications - Communication, signalling and processing systems - Safety related
electronic systems for signallingEN 50238-1:2019, Railway applications - Compatibility between rolling stock and train detection systems - Part
1: GeneralCLC/TS 50238-2:2020, Railway applications - Compatibility between rolling stock and train detection systems -
Part 2: Compatibility with track circuitsEN 60529:1991, Degrees of protection provided by enclosures (IP Code) (IEC 60529:1989)
EN 60721-3 (series), Classification of environmental conditions — Part 3: Classification of groups of
environmental parameters and their severities (IEC 60721-3, all parts)3 Terms, definitions and abbreviations
3.1 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
3.1.1
ballast resistance
insulation of the track, or insulation between both rails
Note 1 to entry: Its value is linked to the environment of the track circuit (weather conditions, hygrometry, cleanliness of the
ballast, crosstie type, etc.).Note 2 to entry: Admittance between both rails being proportional to track circuit zone length, ballast resistance Rb is
inversely proportional to the track circuit length and measured in Ω.km.Note 3 to entry: The ballast resistance is defined for 1 km track length.
As impacted by EN 60529:1991/A1:2000, EN 60529:1991/A2:2013, EN 605
...
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