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 in-rush current and power cut-off). These effects are assessed using modelling tools that have been verified by the past European research project RAILCOM.<\/p>\n
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 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.<\/p>\n
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:<\/p>\n
Technical track circuit parameters;<\/p>\n<\/li>\n
Train based parameters;<\/p>\n<\/li>\n
Track based parameters;<\/p>\n<\/li>\n
Environmental and other parameters including EMC.<\/p>\n<\/li>\n<\/ul>\n
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 \u2013 in the context of this European Standard \u2013 in a separate table.<\/p>\n
\nNOTE 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.<\/p>\n<\/blockquote>\n
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.<\/p>\n
This European Standard is applicable to track circuits installed on all traction power supply lines, including non-electrified lines. However, for track circuits intended to be installed only on non-electrified lines, some parameters may be not applicable.<\/p>\n
PDF Catalog<\/h4>\n
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\n PDF Pages<\/th>\n PDF Title<\/th>\n<\/tr>\n \n 4<\/td>\n Contents Page <\/td>\n<\/tr>\n \n 7<\/td>\n 3BForeword
Foreword <\/td>\n<\/tr>\n\n 8<\/td>\n 0BIntroduction
Introduction <\/td>\n<\/tr>\n\n 9<\/td>\n 1 Scope
2 Normative references <\/td>\n<\/tr>\n\n 10<\/td>\n 3 Terms, definitions and abbreviations
3.1 Terms and definitions <\/td>\n<\/tr>\n\n 11<\/td>\n 3.2 Abbreviations <\/td>\n<\/tr>\n \n 12<\/td>\n 4 Description of train detection system <\/td>\n<\/tr>\n \n 13<\/td>\n 5 Safety relevance of parameters <\/td>\n<\/tr>\n \n 14<\/td>\n 6 Technical track circuit parameters
6.1 TC non-detection zone
6.1.1 General
6.1.2 Requirements
6.2 Track circuit length
6.2.1 General
6.2.2 TC Minimum length of detection – Requirement
6.2.3 TC maximum length of detection – Requirement <\/td>\n<\/tr>\n\n 15<\/td>\n 6.3 Broken rail detection
6.3.1 General
6.3.2 Requirements <\/td>\n<\/tr>\n\n 16<\/td>\n 6.4 IRJ failure detection
6.4.1 General
6.4.2 Requirement
6.5 Frequency management and relevant parameters of the track circuit
6.5.1 Frequencies and immunity limits
6.5.1.1 General
6.5.1.2 Requirements <\/td>\n<\/tr>\n\n 17<\/td>\n 6.5.2 Number of operational channels
6.5.3 Separation between operational channels \/ channel bandwidth <\/td>\n<\/tr>\n\n 18<\/td>\n 6.6 Coding
6.6.1 General
6.6.2 Type of coding
6.6.2.1 Fixed coding
6.6.2.2 Dynamic coding
6.6.2.3 Principle for a frequency shift keying method <\/td>\n<\/tr>\n\n 19<\/td>\n 6.6.3 Requirements
6.7 Response of the receiver to transient disturbances
6.7.1 General
6.7.2 Switched sinusoidal signal <\/td>\n<\/tr>\n\n 21<\/td>\n 6.7.3 Other signals
6.7.4 Validation of the response of the receiver to transient disturbances <\/td>\n<\/tr>\n\n 22<\/td>\n 6.8 RAMS
6.8.1 Reliability
6.8.2 Availability
6.8.2.1 General
6.8.2.2 Requirements
6.8.3 Maintainability
6.8.3.1 General <\/td>\n<\/tr>\n\n 23<\/td>\n 6.8.3.2 Requirements
6.8.4 Safety
6.8.5 Validation of all RAMS parameters
7 Train based parameter – Shunt impedance
7.1 General <\/td>\n<\/tr>\n\n 24<\/td>\n 7.2 Requirements
8 Track based parameters
8.1 Total impedance of the track
8.1.1 General <\/td>\n<\/tr>\n\n 25<\/td>\n 8.1.2 Requirements <\/td>\n<\/tr>\n \n 26<\/td>\n 8.2 Rail to Earth impedance
8.2.1 General
8.2.2 Limits and requirements
8.2.2.1 Introduction
8.2.2.2 Ground impedance: track circuits
8.2.2.3 Ground impedance: local contamination
8.2.2.4 Ground impedance: Corrosion
8.2.2.5 Ground impedance: touch potential <\/td>\n<\/tr>\n\n 27<\/td>\n 8.2.3 Validation
8.3 Rail surface resistance \/ track quality
8.4 Insulation value of IRJ
8.4.1 General
8.4.2 Requirements and validation
8.4.2.1 Method of validation
8.4.2.2 Electrical test <\/td>\n<\/tr>\n\n 28<\/td>\n 8.4.2.3 Mechanical test
8.5 Type of sleepers \/ track structure
8.5.1 General
8.5.2 Definition of the parameter
8.5.3 Requirement and validation <\/td>\n<\/tr>\n\n 29<\/td>\n 8.6 Ballast resistance
8.6.1 General
8.6.2 Definition of the parameter
8.6.3 Requirements for validation
8.7 Maximum time between train movements
8.7.1 General
8.7.2 Definition of the parameter
8.7.3 Requirements and validation <\/td>\n<\/tr>\n\n 30<\/td>\n 8.8 Unbalance of the return current
8.8.1 General
8.8.2 Requirements and validation
9 Environmental and other parameters
9.1 Signalling power supply quality with respect to availability
9.1.1 General
9.1.2 Requirements and validation <\/td>\n<\/tr>\n\n 31<\/td>\n 9.2 Traction power supply quality
9.2.1 General
9.2.2 Definition of the parameter
9.2.3 Requirements and validation
9.3 Amount of sand
9.3.1 General <\/td>\n<\/tr>\n\n 32<\/td>\n 9.3.2 Definition of parameter
9.3.3 Requirements and validation
9.4 Weather, ice and other environmental conditions
9.4.1 Temperature
9.4.1.1 General
9.4.1.2 Ambient temperature for track circuit evaluator component \u2013 Requirements and validation
9.4.1.3 Ambient temperature for track circuit trackside equipment \u2013 Requirements and validation
9.4.2 Pressure\/Airflow
9.4.2.1 General <\/td>\n<\/tr>\n\n 33<\/td>\n 9.4.2.2 Requirements and validation
9.4.3 Humidity
9.4.3.1 General
9.4.3.2 Requirements and validation
9.4.4 Precipitation
9.4.4.1 General
9.4.4.2 Rain <\/td>\n<\/tr>\n\n 34<\/td>\n 9.4.4.3 Snow
9.4.4.4 Hail
9.4.4.5 Ice
9.4.5 Solar radiation
9.4.6 Protection level (IP) <\/td>\n<\/tr>\n\n 35<\/td>\n 9.4.7 Vibrations \/ shock
9.4.7.1 General
9.4.7.2 Requirements and validation
9.5 EMC
9.5.1 General
9.5.2 Requirement and validation for EMC with respect to vehicles
9.5.3 Requirement and validation for EMC with radio transmitters
9.5.4 Requirement and validation for overvoltage protection (including indirect lightning effects) <\/td>\n<\/tr>\n\n 36<\/td>\n Annex A (informative) Guidance for safety relevance of parameters <\/td>\n<\/tr>\n \n 38<\/td>\n Annex B (informative) Scenarios for non-detection zone
B.1 Overlap of two detection zones using isolated rail joints (distance x in figure below)
B.2 Overlap of a dead zone in S&C area <\/td>\n<\/tr>\n\n 40<\/td>\n B.3 Equipotential wires in S&C area <\/td>\n<\/tr>\n \n 41<\/td>\n B.4 Zone without detection in electrical joints <\/td>\n<\/tr>\n \n 44<\/td>\n Annex C (informative) Track circuit length
C.1 Introduction
C.2 Example of TC with S-bond
C.2.1 Introduction
C.2.2 TC minimum length depending on the S-bond length <\/td>\n<\/tr>\n\n 45<\/td>\n C.2.3 TC minimum length depending on the speed of the train, drop-away delay, route release delay and tolerances
C.2.4 TC Minimum length relating to RST <\/td>\n<\/tr>\n\n 47<\/td>\n Annex D (informative) Scenarios for broken rail Relation Track circuit \u2013 Broken rail detection
D.1 Basic principle <\/td>\n<\/tr>\n\n 48<\/td>\n D.2 Fail safe system <\/td>\n<\/tr>\n \n 49<\/td>\n D.3 Examples where the broken rail detection is not possible.
D.3.1 S&C area
D.3.2 Single rail isolation
D.3.3 Parallel paths of other tracks circuits or (and) earthing connections <\/td>\n<\/tr>\n\n 50<\/td>\n Annex E (informative) Frequency management
E.1 Frequencies and immunity limits
E.1.1 Frequency bands of operation
E.1.2 Parameters for evaluation
E.1.3 TC Compatibility limits <\/td>\n<\/tr>\n\n 51<\/td>\n E.1.4 Immunity to in-band interference <\/td>\n<\/tr>\n \n 52<\/td>\n E.1.5 Immunity to harmonics frequency from traction power supply (1,5 kHz to 2,65 kHz in DC and 50 Hz power systems only) <\/td>\n<\/tr>\n \n 53<\/td>\n E.1.6 Validation of immunity
E.1.6.1 Introduction
E.1.6.2 Test configuration in laboratory <\/td>\n<\/tr>\n\n 54<\/td>\n E.1.6.3 Testing equipment specification
E.1.6.4 Testing procedure <\/td>\n<\/tr>\n\n 55<\/td>\n E.1.6.5 In situ validation of the laboratory tests <\/td>\n<\/tr>\n \n 56<\/td>\n E.2 Background to development
E.2.1 Introduction <\/td>\n<\/tr>\n\n 57<\/td>\n E.2.2 Approach to Frequency Management
E.2.3 Future Track Circuits and Frequency Management
E.2.4 Future RST and Frequency Management
E.2.5 Application of FrM to existing generation Track Circuits <\/td>\n<\/tr>\n\n 58<\/td>\n E.3 Frequency management \u2013 Emission limits for rolling stock
E.3.1 General
E.3.2 Emission limits for rolling stock supplied under DC power systems <\/td>\n<\/tr>\n\n 59<\/td>\n E.3.3 Emission limits for rolling stock supplied under 16,7 Hz power systems
E.3.4 Emission limits for rolling stock supplied under 50 Hz power systems <\/td>\n<\/tr>\n\n 60<\/td>\n Annex F (informative) Vehicle Impedance \/ guidance for RST design to support the FrM
F.1 Definition of the parameter
F.2 Justification of the parameter
F.3 Limits and RST requirements
F.3.1 For DC traction:
F.3.2 For both AC and DC traction:
F.4 Validation of the parameter <\/td>\n<\/tr>\n\n 61<\/td>\n Annex G (informative) Example of elements of maintenance for existing track circuits <\/td>\n<\/tr>\n \n 66<\/td>\n Annex H (informative) Example of management of shunt impedance <\/td>\n<\/tr>\n \n 68<\/td>\n Annex I (informative) Rail to ground impedance: Track Circuit Effects
I.1 Physical factors <\/td>\n<\/tr>\n\n 69<\/td>\n I.2 Symmetric rail- ground resistance
I.3 Values from experience
I.4 Asymmetric rail- ground resistance <\/td>\n<\/tr>\n\n 70<\/td>\n I.5 Touch Potential Effects <\/td>\n<\/tr>\n \n 72<\/td>\n Annex J (informative) Example of mechanical test for IRJ
J.1 General <\/td>\n<\/tr>\n\n 73<\/td>\n J.2 Testing program <\/td>\n<\/tr>\n \n 75<\/td>\n Annex K (informative) Example of existing requirement for the type of sleepers \/ track structure
K.1 Typical value for a ballast resistance
K.2 Infrabel
K.3 DB
K.3.1 Wooden sleepers
K.3.2 Concrete sleepers <\/td>\n<\/tr>\n\n 76<\/td>\n K.3.3 Slab tracks <\/td>\n<\/tr>\n \n 77<\/td>\n Annex L (informative) Example of application for different safety requirements
L.1 Lower safety integrity level (less than SIL 4)
L.2 Highest safety integrity level (SIL 4) <\/td>\n<\/tr>\n\n 78<\/td>\n Annex ZZ (informative) Relationship between this European Standard and the Essential Requirements of EU Directive 2008\/57\/EC <\/td>\n<\/tr>\n \n 82<\/td>\n Bibliography
1BBibliography <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":"Railway applications. Technical parameters of train detection systems for the interoperability of the trans-European railway system – Track circuits<\/b><\/p>\n
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\n Published By<\/td>\n Publication Date<\/td>\n Number of Pages<\/td>\n<\/tr>\n \n BSI<\/b><\/a><\/td>\n 2015<\/td>\n 84<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":249986,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[2641],"product_tag":[],"class_list":{"0":"post-249981","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-bsi","8":"first","9":"instock","10":"sold-individually","11":"shipping-taxable","12":"purchasable","13":"product-type-simple"},"_links":{"self":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product\/249981","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media\/249986"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=249981"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=249981"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=249981"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}