SIST EN 50121-1:2015
(Main)Railway applications - Electromagnetic compatibility - Part 1: General
Railway applications - Electromagnetic compatibility - Part 1: General
This Part 1 of the European standards series EN 50121 outlines the structure and the content of the
whole set.
It specifies the performance criteria applicable to the whole standards series.
Clause 4 provides information about the EMC management.
This part alone is not sufficient to give presumption of conformity to the essential requirements of the
EMC-Directive and is intended to be used in conjunction with other parts of this standard.
Annex A describes the characteristics of the railway system which affect electromagnetic compatibility
(EMC) behaviour.
Phenomena excluded from the set are Nuclear EM pulse, abnormal operating conditions (e.g. fault
conditions) and the induction effects of direct lightning strike.
Emission limits at the railway system boundary do not apply to intentional transmitters within the railway
system boundaries.
Safety considerations are not covered by this set of standards.
The biological effects of non-ionising radiation as well as apparatus for medical assistance, such as
pacemakers, are not considered here.
Bahnanwendungen - Elektromagnetische Verträglichkeit - Teil 1: Allgemeines
Applications ferroviaires - Compatibilité électromagnétique -- Partie 1: Généralités
La présente Partie 1 de la série de Normes européennes EN 50121 donne la structure et le contenu de l’ensemble de la série.
Elle spécifie les critères d'aptitude à la fonction applicables à l'ensemble de la série de normes.
L'Article 4 donne des informations relatives à la gestion CEM.
Cette partie seule n’est pas suffisante pour donner la présomption de conformité aux exigences essentielles de la Directive CEM et est destinée à être utilisée conjointement avec les autres parties de la présente Norme.
L’Annexe A décrit les caractéristiques du système ferroviaire qui affectent la compatibilité électromagnétique (CEM).
Les phénomènes exclus de cette série de normes sont l’impulsion électromagnétique nucléaire, les conditions anormales de fonctionnement (conditions de défaut, par exemple) et les effets d’induction dus à un choc direct de la foudre.
Les limites d’émission à la limite du système ferroviaire ne s'appliquent pas aux émetteurs intentionnels dans les limites du système ferroviaire.
Les aspects relatifs à la sécurité ne sont pas couverts par cette série de normes.
Les effets biologiques des rayonnements non ionisants ainsi que les appareils d’assistance médicale, tels que les stimulateurs cardiaques, ne sont pas traités dans cette série.
Železniške naprave - Elektromagnetna združljivost - 1. del: Splošno
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
SIST EN 50121-1:2015
01-julij-2015
1DGRPHãþD
SIST EN 50121-1:2007
Železniške naprave - Elektromagnetna združljivost - 1. del: Splošno
Railway applications - Electromagnetic compatibility - Part 1: General
Bahnanwendungen - Elektromagnetische Verträglichkeit - Teil 1: Allgemeines
Applications ferroviaires - Compatibilité électromagnétique -- Partie 1: Généralités
Ta slovenski standard je istoveten z: EN 50121-1:2015
ICS:
33.100.01 Elektromagnetna združljivost Electromagnetic compatibility
na splošno in general
45.020 Železniška tehnika na Railway engineering in
splošno general
SIST EN 50121-1:2015 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
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SIST EN 50121-1:2015
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SIST EN 50121-1:2015
EUROPEAN STANDARD EN 50121-1
NORME EUROPÉENNE
EUROPÄISCHE NORM
March 2015
ICS 29.280; 33.100.01; 45.020 Supersedes EN 50121-1:2006
English Version
Railway applications - Electromagnetic compatibility - Part 1:
General
Applications ferroviaires - Compatibilité électromagnétique - Bahnanwendungen - Elektromagnetische Verträglichkeit -
Partie 1: Généralités Teil 1: Allgemeines
This European Standard was approved by CENELEC on 2015-01-05. 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.
Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC
Management Centre or to any CENELEC member.
This European Standard exists 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, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,
Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, 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: Avenue Marnix 17, B-1000 Brussels
© 2015 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Ref. No. EN 50121-1:2015 E
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Contents
Introduction . 4
1 Scope . 6
2 Abbreviations . 6
3 Performance criteria . 6
4 Management of EMC . 7
Annex A (informative) The railway system . 8
Annex ZZ (informative) Coverage of Essential Requirements of EC Directives . 12
Bibliography . 13
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Foreword
This document (EN 50121-1:2015) has been prepared by CLC/TC 9X: "Electrical and electronic
applications for railways".
The following dates are fixed:
(dop) 2016-01-05
• latest date by which this document has to be
implemented at national level by publication of
an identical national standard or by
endorsement
(dow) 2018-01-05
• latest date by which the national standards
conflicting with this document have to
be withdrawn
This document supersedes EN 50121-1:2006.
EN 50121-1:2015 includes the following significant technical changes with respect to
EN 50121-1:2006:
- deleting of references to 91/440/EEC and EN 50238 (Clause 4).
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CENELEC [and/or CEN] shall not be held responsible for identifying any or all such
patent rights.
This document has been prepared under a mandate given to CENELEC by the European Commission
and the European Free Trade Association, and supports essential requirements of EU Directive(s).
For the relationship with EU Directive(s) see informative Annex ZZ, which is an integral part of this
document.
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Introduction
The railway system EMC set of product-specific European Standards is intended, in the main, to permit
compliance with the EMC Directive, but also to provide a means of prescribing compatibility between
internal parts of the railway system. It consists of five parts described at the end of this introduction.
The set of standards provides both a framework for managing the EMC for railway systems and also
specifies the limits for the electromagnetic (EM) emission of the railway system as a whole to the
outside world and for the EM emission and immunity for equipment operating within the railway system.
The latter is intended to be compatible with the emission limits set for the railway system as a whole
and also provides for establishing confidence in equipment being Fit For Purpose in the Railway
environment. There are different stationary emission limits set for trams/trolleybuses and for
metro/mainline railway systems. The frequency covered by the standards is in the range from d.c. to
400 GHz. No measurements need to be performed at frequencies where no requirement is specified.
The limits for EMC phenomena are set so that the railway system as a whole satisfies the Directive on
electromagnetic compatibility with the outside world, and so that EMC is achieved between the various
parts of the railway system. Any specific problems in complying with the limits are intended to be
addressed by the procedures given in the EMC Directive. Throughout the set of standards, the
immunity levels are chosen to ensure a reasonable level of EMC with other apparatus within the local
railway environment and with emissions which enter the railway system from the outside world. Limits
are also placed on EM emission by railway systems into the outside world.
The compatibility between railway system emissions and their external environment is based upon
emission limits from the railway systems being set by considering the results from measurements at
the time that the EMC Directive became enforceable. Given that the general compatibility between
railway systems and their environment was satisfactory at the time these measurements were made
and subsequent experience of applying the limits has confirmed their acceptability, compliance with
this Standard has been judged to give satisfactory compatibility. The immunity and emission levels do
not of themselves guarantee that the railway system will have satisfactory compliance with its
neighbours. In exceptional circumstances, for instance near a “special location” which has unusually
high levels of EM interference, the railway system may require additional measures to be taken to
ensure proper compatibility. Particular care should be taken when in proximity to equipment not
covered by the EMC Directive such as radio transmission equipment, military or medical installations.
Attention is particularly drawn to any magnetic imaging equipment in hospitals that may be near to
urban transport. In all these cases, compatibility should be achieved with consultation and co-operation
between the interested parties.
The immunity and emission levels do not of themselves guarantee that integration of the apparatus
within the railway system will necessarily be satisfactory. The standard cannot cover all the possible
configurations of apparatus, but the test levels are sufficient to achieve satisfactory EMC in the majority
of cases. In exceptional circumstances, for instance near a “special location” which has unusually high
levels of EM interference, the system may require additional measures to be taken to ensure proper
operation. The resolution of this is a matter for discussion between the equipment supplier and the
project manager, infrastructure manager or equivalent.
The railway apparatus is assembled into large systems and installations, such as trains and signalling
control centres. Details are given in annex A. It is not, therefore, possible to establish immunity tests
and limits for these large assemblies. The immunity levels for the apparatus will normally ensure
reliable operation, but it is necessary to prepare an EMC management plan to deal with complex
situations or to deal with specific circumstances. For example, the passage of the railway line close to
a high power radio transmitter which produces abnormally high field strengths. Special conditions may
have to be applied for railway equipment which has to work near such a transmitter and these will be
accepted as National Conditions for the specification.
The series of standards EN 50121, Railway applications - Electromagnetic compatibility, contains the
following parts:
− Part 1: General: This part gives a description of the electromagnetic behaviour of a railway
system; it specifies the performance criteria for the whole set. A management process to
achieve EMC at the interface between the railway infrastructure and trains is referenced.
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− Part 2: Emission of the whole railway system to the outside world: This part sets the
emission limits from the railway system to the outside world at radio frequencies. It defines the
applied test methods and gives information on typical field strength values at traction and radio
frequency (cartography).
− Part 3-1: Rolling stock - Train and complete vehicle: This part specifies the emission and
immunity requirements for all types of rolling stock. It covers traction rolling stock and trainsets,
as well as independent hauled rolling stock. The scope of this part of the series ends at the
interface of the rolling stock with its respective energy inputs and outputs.
− Part 3-2: Rolling stock – Apparatus: This part applies to emission and immunity aspects of
EMC for electrical and electronic apparatus intended for use on railway rolling stock. It is also
used as a means of dealing with the impracticality of immunity testing a complete vehicle.
− Part 4: Emission and immunity of the signalling and telecommunications apparatus:
This part specifies limits for electromagnetic emission and immunity for signalling and
telecommunications apparatus installed within a Railway system. The EMC plan has to state, if
this part is also applicable for railway operational equipment mounted trackside or at platforms.
− Part 5: Emission and immunity of fixed power supply installations and apparatus: This
part applies to emission and immunity aspects of EMC for electrical and electronic apparatus
and components intended for use in railway fixed installations associated with power supply.
EN 50121-1 and EN 50121-2 are product family standards which take precedence over generic
standards.
EN 50121-3-1, EN 50121-3-2, EN 50121-4, and EN 50121-5 are product standards.
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1 Scope
This Part 1 of the European standards series EN 50121 outlines the structure and the content of the
whole set.
It specifies the performance criteria applicable to the whole standards series.
Clause 4 provides information about the EMC management.
This part alone is not sufficient to give presumption of conformity to the essential requirements of the
EMC-Directive and is intended to be used in conjunction with other parts of this standard.
Annex A describes the characteristics of the railway system which affect electromagnetic compatibility
(EMC) behaviour.
Phenomena excluded from the set are Nuclear EM pulse, abnormal operating conditions (e.g. fault
conditions) and the induction effects of direct lightning strike.
Emission limits at the railway system boundary do not apply to intentional transmitters within the railway
system boundaries.
Safety considerations are not covered by this set of standards.
The biological effects of non-ionising radiation as well as apparatus for medical assistance, such as
pacemakers, are not considered here.
2 Abbreviations
a.c. alternating current
d.c. direct current
E electric (field)
EM electromagnetic
EMC electromagnetic compatibility
GTO gate turnoff (transistor)
H magnetic (field)
IGBT insulated gate bipolar transistor
MVA megavoltampere
RF radio frequency
For the purpose of this document, definitions related to EMC and to relevant phenomena may be found
in IEC 60050-161.
Other parts of this European Standard may contain specific definitions.
3 Performance criteria
NOTE This clause is based on EN 61000-6-2:2005.
The variety and the diversity of the apparatus within the scope of this set of standards makes it difficult
to define precise criteria for the evaluation of the immunity test results.
A functional description and a definition of performance criteria, during or as a consequence of the
EMC testing, shall be provided by the manufacturer and noted in the test report, based on the following
criteria:
Performance criterion A: The apparatus shall continue to operate as intended during and after the
test. No degradation of performance or loss of function is allowed below a performance level specified
by the manufacturer, when the apparatus is used as intended. The performance level may be replaced
by a permissible loss of performance. If the minimum performance level or the permissible
performance loss is not specified by the manufacturer, either of these may be derived from the product
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description and documentation, and from what the user may reasonably expect from the apparatus if
used as intended.
Performance criterion B: The apparatus shall continue to operate as intended after t
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