SIST EN 50121-1:2017
(Main)Railway applications - Electromagnetic compatibility - Part 1: General
Railway applications - Electromagnetic compatibility - Part 1: General
This European standard outlines the structure and the content of the whole set.
It specifies the performance criteria applicable to the whole standards series.
Clause 5 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-ionizing 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
Železniške naprave - Elektromagnetna združljivost - 1. del: Splošno
Ta evropski standard opisuje strukturo in vsebino celotnega sklopa. Določa merila zmogljivosti za celotno skupino standardov. Točka 5 podaja informacije o upravljanju elektromagnetne združljivosti.
Ta del sam ne zadostuje za domnevo o skladnosti z bistvenimi zahtevami Direktive o elektromagnetni združljivosti in ga je treba uporabljati v povezavi z drugimi deli tega standarda. V dodatku A so opisane značilnosti železniškega sistema, ki vplivajo na vedenje elektromagnetne združljivosti (EMC).
Pojavi, ki so izključeni iz sklopa, so jedrski elektromagnetni impulz, neobičajni obratovalni pogoji (npr. okvare) in induktivni učinki neposrednega udara strele.
Mejne vrednosti emisij na meji železniškega sistema se ne uporabljajo za namenske oddajnike v mejah železniškega sistema,
Ti standardi ne obravnavajo varnostnih napotkov.
Biološki učinki neionizirajočega sevanja in tudi aparati za medicinsko pomoč, kot so spodbujevalniki, v tem dokumentu niso obravnavani.
General Information
Relations
Overview
EN 50121-1:2017 - Railway applications - Electromagnetic compatibility - Part 1: General defines the framework and performance criteria for the complete EN 50121 series on railway electromagnetic compatibility (EMC). It describes the structure and content of the set, the overall EMC performance criteria and management processes and provides an informative annex (Annex A) describing railway-system characteristics that affect EMC behaviour. This part alone does not give presumption of conformity with the EMC Directive and must be used together with the other EN 50121 parts.
Key topics and requirements
- Scope and exclusions: Covers EMC phenomena from DC to 400 GHz. Excludes nuclear electromagnetic pulse (EMP), abnormal operating (fault) conditions, direct lightning-strike induction effects, safety requirements and biological/non‑ionizing radiation effects (e.g., pacemakers).
- Performance criteria: Defines immunity performance levels based on EN 61000 principles - Criterion A (uninterrupted operation), Criterion B (post‑test operation, no loss of data), and Criterion C (temporary loss allowed if self‑recoverable).
- EMC management (Clause 5): Requires an early, formal EMC management plan for projects - identify sources and victims, analyse coupling mechanisms, and apply appropriate mitigation at subsystem and system boundaries.
- Annex A - Railway system characteristics: Describes principal electromagnetic phenomena and coupling mechanisms relevant to railways, including:
- Conducted low‑frequency phenomena
- Low‑frequency field phenomena
- Conducted high‑frequency phenomena
- Radiated high‑frequency phenomena
- Electric traction system descriptions, components and internal/external noise sources
- Regulatory context: Emission limits at the railway system boundary exclude intentional transmitters located within railway boundaries. EN 50121-1 is a product‑family framework and takes precedence over generic standards where applicable.
Applications and who uses it
EN 50121-1:2017 is essential for:
- Rolling stock manufacturers and apparatus suppliers (to align equipment with railway EMC expectations)
- Infrastructure and project managers (to develop EMC management plans for lines, depots and stations)
- Signalling, telecommunications and power‑supply engineers (to ensure subsystem compatibility)
- EMC test laboratories and certification bodies (to interpret performance criteria and test reporting)
- System integrators and procurement teams (to specify EMC requirements and assess fit‑for‑purpose)
Practical uses include preparing EMC plans, defining emission/immunity requirements for equipment and subsystems, assessing interference risks at interfaces, and guiding mitigation measures in challenging environments or “special locations.”
Related standards
- EN 50121-2: Emission of the whole railway system to the outside world
- EN 50121-3-1 / 3-2: Rolling stock - Train and apparatus requirements
- EN 50121-4: Signalling and telecommunications apparatus
- EN 50121-5: Fixed power supply installations and apparatus
- EN 61000 series: General EMC guidance and test methods
Keywords: EN 50121-1:2017, railway electromagnetic compatibility, railway EMC standards, EMC management, emission limits, immunity levels, EN 50121 series.
Frequently Asked Questions
SIST EN 50121-1:2017 is a standard published by the Slovenian Institute for Standardization (SIST). Its full title is "Railway applications - Electromagnetic compatibility - Part 1: General". This standard covers: This European standard outlines the structure and the content of the whole set. It specifies the performance criteria applicable to the whole standards series. Clause 5 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-ionizing radiation as well as apparatus for medical assistance, such as pacemakers, are not considered here.
This European standard outlines the structure and the content of the whole set. It specifies the performance criteria applicable to the whole standards series. Clause 5 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-ionizing radiation as well as apparatus for medical assistance, such as pacemakers, are not considered here.
SIST EN 50121-1:2017 is classified under the following ICS (International Classification for Standards) categories: 33.100.01 - Electromagnetic compatibility in general; 45.020 - Railway engineering in general. The ICS classification helps identify the subject area and facilitates finding related standards.
SIST EN 50121-1:2017 has the following relationships with other standards: It is inter standard links to SIST EN 50121-1:2015, oSIST prEN 50121-1:2025, SIST EN 50121-1:2015. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
SIST EN 50121-1:2017 is associated with the following European legislation: EU Directives/Regulations: 2003-01-2787, 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.
You can purchase SIST EN 50121-1:2017 directly from iTeh Standards. The document is available in PDF format and is delivered instantly after payment. Add the standard to your cart and complete the secure checkout process. iTeh Standards is an authorized distributor of SIST standards.
Standards Content (Sample)
SLOVENSKI STANDARD
01-april-2017
1DGRPHãþD
SIST EN 50121-1:2015
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 50121-1:2017
ICS:
33.100.01 Elektromagnetna združljivost Electromagnetic compatibility
na splošno in general
45.020 Železniška tehnika na Railway engineering in
splošno general
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
EUROPEAN STANDARD
EN 50121-1
NORME EUROPÉENNE
EUROPÄISCHE NORM
January 2017
ICS 29.280; 45.020; 33.100.01 Supersedes EN 50121-1:2015
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 2016-11-07. 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, 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: Avenue Marnix 17, B-1000 Brussels
© 2017 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Ref. No. EN 50121-1:2017 E
Contents Page
European foreword . 3
Introduction . 4
1 Scope . 6
2 Normative references . 6
3 Abbreviations . 6
4 Performance criteria . 7
5 Management of EMC . 7
Annex A (informative) The railway system . 8
A.1 Introduction . 8
A.2 General coupling mechanisms . 8
A.3 Principal electromagnetic phenomena for immunity . 9
A.3.1 Conducted low frequency phenomena . 9
A.3.2 Low frequency field phenomena . 9
A.3.3 Conducted high frequency phenomena . 9
A.3.4 Radiated high frequency phenomena . 9
A.4 Principal electromagnetic phenomena for emission . 9
A.5 Description of the different electric traction systems . 9
A.6 Components of electric traction systems . 10
A.7 Internal sources of electromagnetic noise . 10
A.7.1 General . 10
A.8 Summary of main characteristics of railway systems . 12
A.9 External sources of disturbance . 12
Bibliography . 13
European foreword
This document (EN 50121-1:2017) has been prepared by CLC/TC 9X, “Electrical and electronic
applications for railways”.
The following dates are fixed:
• latest date by which this document has to be implemented at (dop) [2017-11-07]
national level by publication of an identical national standard
or by endorsement
• latest date by which the national standards conflicting with (dow) [2019-11-07]
this document have to be withdrawn
This document supersedes EN 50121-1:2015.
EN 50121-1:2015:
— deletion of Annex ZZ.
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.
EN 50121, Railway applications — Electromagnetic compatibility, consists of the following parts:
— Part 1: General [the present document];
— Part 2: Emission of the whole railway system to the outside world;
— Part 3-1: Rolling stock — Train and complete vehicle;
— Part 3-2: Rolling stock — Apparatus;
— Part 4: Emission and immunity of the signalling and telecommunications apparatus;
— Part 5: Emission and immunity of fixed power supply installations and apparatus.
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 DC 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 themselves do not 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 important 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.
— 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 needs 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.
1 Scope
This European standard outlines the structure and the content of the whole set.
It specifies the performance criteria applicable to the whole standards series.
Clause 5 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-ionizing radiation as well as apparatus for medical assistance, such as
pacemakers, are not considered here.
2 Normative references
The following documents, in whole or in part, are normatively referenced in this document and are
indispensable for its application. For dated references, only the edition cited applies. For undated
references, the latest edition of the referenced document (including any amendments) applies.
EN 50121 (all parts), Railway applications — Electromagnetic compatibility
EN 61000 (all parts), Electromagnetic compatibility (EMC) (IEC 61000 series)
3 Abbreviations
AC alternating current
DC direct
...
SIST EN 50121-1:2017は、鉄道アプリケーションにおける電磁適合性（EMC）に関するヨーロッパ規格の一部であり、その全体構造と内容を明確に定義しています。この標準の範囲は非常に広く、全体の基準シリーズに適用される性能基準を規定しています。特に、第5条ではEMCマネジメントに関する詳細な情報が提供され、標準の意味合いを強化しています。 この標準の強みは、鉄道システムの電磁適合性に影響を与える特性を詳述した附属書Aにあります。これにより、各鉄道システムが直面する具体的なチャレンジや対策を理解する助けとなります。また、核EMパルスや異常運転条件（故障条件など）、および直撃雷による誘導効果はこのセットから除外されているため、より明確な適用範囲が設定されています。 結果として、SIST EN 50121-1:2017は全体のEMC指令に対する遵守の予見を与えるものではありませんが、他の部分と併用することで、鉄道システム内での適切な電磁適合性管理が可能となります。鉄道システムの境界における排出限界は、意図的な送信機には適用されないことも明確にされています。 ただし、安全に関する考慮や、非電離放射線の生物学的影響、医療機器（ペースメーカーなど）については、この標準セットには含まれていないため、注意が必要です。これらの要素は、関連する他の標準で扱うべきテーマとなります。このように、SIST EN 50121-1:2017は、EMCに関連する鉄道アプリケーションにおいて、その重要性や適切な実施を促進するための基盤を提供する、非常に有用な文書です。
La norme SIST EN 50121-1:2017, qui relève des applications ferroviaires en matière de compatibilité électromagnétique (CEM), constitue un cadre essentiel pour garantir le bon fonctionnement des systèmes ferroviaires face aux enjeux d'interférences électromagnétiques. Son champ d'application est clairement défini, en établissant une structure et un contenu cohérents pour l'ensemble du jeu de normes, tout en spécifiant des critères de performance adaptés à ce domaine. L'un des points forts de cette norme réside dans son approche systématique de la gestion de la CEM, détaillée dans la clause 5. Bien qu'elle souligne que ce document à lui seul ne suffira pas à établir une présomption de conformité aux exigences essentielles de la directive CEM, il établit des fondamentaux cruciaux à considérer en association avec les autres parties de la norme. Cette interconnexion souligne la diligence nécessaire dans la mise en œuvre des exigences liées à la CEM dans le secteur ferroviaire. L'annexe A apporte une valeur ajoutée en décrivant les caractéristiques spécifiques du système ferroviaire qui influent sur le comportement de la compatibilité électromagnétique. Cela permet aux professionnels du secteur de mieux comprendre les interactions et les exigences spécifiques à prendre en compte lors de la conception ou de la mise à jour des installations ferroviaires. De plus, l'exclusion de certains phénomènes, tels que l'impulsion électromagnétique nucléaire ou les effets d'induction liés aux coups de foudre, précise le domaine d'application et les limites de cette norme, évitant ainsi toute ambiguïté. Cependant, il est important de noter que les limites d'émission à la frontière du système ferroviaire ne s'appliquent pas aux émetteurs intentionnels situés à l'intérieur de ces frontières, ce qui pourrait poser des défis en termes de gestion de la CEM. De plus, cette norme ne couvre pas les considérations de sécurité, laissant un vide dans des domaines potentiellement critiques pour la protection des systèmes ferroviaires. En somme, la norme SIST EN 50121-1:2017 s'avère être un document fondamental pour le contrôle de la compatibilité électromagnétique dans les applications ferroviaires, offrant des lignes directrices claires tout en soulignant l'importance d'une approche systémique à travers l'ensemble des normes associées. Sa pertinence ne peut être sous-estimée dans un secteur où la fiabilité et la sécurité sont primordiales.
The SIST EN 50121-1:2017 standard presents a comprehensive framework for electromagnetic compatibility (EMC) within railway applications, serving as a pivotal resource for manufacturers and operators in the railway sector. The scope of this standard is well-defined, outlining the structure and content needed for the entire series relating to railway EMC, thereby facilitating a unified understanding and approach toward compliance. One of the notable strengths of this standard is its specification of performance criteria applicable across the whole standards series. This not only aids in establishing clear benchmarks but also ensures consistency in how electromagnetic compatibility is evaluated and enforced within railway systems. Clause 5 particularly emphasizes EMC management, providing essential guidance on how to oversee compliance efforts effectively. Furthermore, the inclusion of Annex A, which details the characteristics of the railway system affecting EMC behaviour, enhances the practical relevance of this standard. This annex allows stakeholders to identify and address specific factors that influence EMC outcomes in various operational scenarios. It is important to note, however, that while this standard provides a framework for EMC management, it does not offer a presumption of conformity to the essential requirements of the EMC-Directive on its own. Users are encouraged to utilize this part in conjunction with other parts of the standard for a more comprehensive approach to compliance. The exclusion of specific phenomena such as nuclear EM pulses, abnormal operating conditions, and the induction effects of direct lightning strikes indicates a focused application of the standard, allowing stakeholders to concentrate on more relevant EMC concerns. Moreover, by specifying that emission limits at the railway system boundary do not apply to intentional transmitters within those boundaries, the standard clarifies critical operational parameters. However, it is important to acknowledge that safety considerations and biological effects of non-ionizing radiation, including concerns regarding medical apparatus like pacemakers, are outside the purview of this standard. This delineation is significant as it sets clear expectations on what is and isn’t covered, enabling users to seek additional resources or standards where necessary. In conclusion, the SIST EN 50121-1:2017 standard is a crucial document that lays the groundwork for effective EMC management in railway applications. Its clear structure, comprehensive scope, and defined performance criteria make it an indispensable resource for ensuring that EMC principles are consistently applied throughout the railway industry.
Die Norm SIST EN 50121-1:2017 behandelt die elektromagnetische Verträglichkeit (EMC) von Bahnanwendungen und legt die grundlegenden Anforderungen sowie das Leistungsniveau für die gesamte Normenreihe fest. Ihr Geltungsbereich erstreckt sich über die Struktur und den Inhalt des gesamten Regelwerks und bietet eine umfassende Grundlage für die Entwicklung und Implementierung von Lösungen im Bereich der elektromagnetischen Verträglichkeit innerhalb des Schienenverkehrs. Eine der Stärken dieser Norm ist die klare Definition von Leistungsanforderungen, die für die gesamte Normenreihe gelten. Insbesondere der Abschnitt 5 liefert wertvolle Informationen über das Management der elektromagnetischen Verträglichkeit, betont jedoch auch, dass diese Norm allein nicht ausreicht, um die notwendigen Konformitätsvorschriften der EMC-Richtlinie zu erfüllen. Dies unterstreicht die Relevanz, diese Norm in Verbindung mit anderen Teilen des Regelwerks zu verwenden, um eine ganzheitliche Lösung zu gewährleisten. Anhang A bietet darüber hinaus eine detaillierte Beschreibung der Merkmale des Bahnensystems, die das Verhalten in Bezug auf die elektromagnetische Verträglichkeit beeinflussen. Diese Informationen sind entscheidend, um die spezifischen Anforderungen und Herausforderungen im Bereich der Bahnanwendungen zu verstehen und zu adressieren. Wichtig zu beachten ist, dass bestimmte Phänomene, wie der nukleare elektromagnetische Puls und abnormalen Betriebszustände, aus dem Geltungsbereich dieser Norm ausgeschlossen sind. Auch Sicherheitsaspekte, wie die biologischen Effekte nicht-ionisierender Strahlung oder die Auswirkungen auf medizinische Geräte wie Herzschrittmacher, werden in dieser Norm nicht behandelt. Die Norm legt ebenfalls fest, dass Emissionsgrenzen an der Systemgrenze des Schienennetzes nicht auf absichtliche Sender innerhalb dieser Grenzen anwendbar sind. Dies ist ein wichtiger Aspekt, da es sicherstellt, dass die spezifischen Anforderungen von Sendern im Schienenverkehr nicht unter die allgemeinen Emissionsgrenzen fallen. Insgesamt bietet die SIST EN 50121-1:2017 eine prägnante und strukturierte Grundlage für die Überwachung der elektromagnetischen Verträglichkeit im Bahnbereich und ist ein bedeutendes Dokument für alle, die in diesem Sektor arbeiten.
SIST EN 50121-1:2017 표준은 철도 응용 분야에서의 전자기 호환성(EMC)에 대한 종합적인 지침을 제공하는 유럽 표준으로, 전체 표준 시리즈의 구조와 내용을 명확히 설명하고 있습니다. 이 표준은 EMC 관리에 관한 정보도 포함하고 있으며, 제5조에서 이러한 관리 방침을 제시합니다. 그러나 이 문서만으로는 EMC 지침의 필수 요구 사항에 대한 적합성을 보장할 수 없으며, 다른 관련 부분들과 함께 사용되어야 합니다. SIST EN 50121-1:2017의 강점 중 하나는 철도 시스템의 EMC 행동에 영향을 미치는 특성을 설명하는 부록 A를 포함하고 있다는 점입니다. 이를 통해 사용자는 철도 시스템의 특정 조건에서 전자기적 상호 작용을 이해하고 관리할 수 있는 기초를 제공합니다. 또한, 이 표준은 철도 시스템 경계에서의 방출 한계에 대한 명확한 기준을 설정하고 있지만, 의도적으로 송신하는 장치에는 적용되지 않는다는 점도 중요하게 다루고 있습니다. 그러나 이 표준은 방사선 안전성이나 생물학적 효과에 관한 부분은 다루지 않으며, 의료 보조 장치인 심장박동기와 같은 기기에 대한 고려도 포함되어 있지 않습니다. 따라서 SIST EN 50121-1:2017은 EMC 관련 요구 사항을 충족하기 위한 중요한 기초 자료를 제공하지만, 안전성 및 생물학적 영향을 다른 표준과 함께 추가적으로 검토해야 함을 인지해야 합니다. 결론적으로, SIST EN 50121-1:2017 표준은 철도 분야에서의 전자기 호환성을 관리하는 데 필수적인 역할을 하며, 그 구조적 명확성과 종합적인 정보 제공으로 인해 사용자의 이해를 돕고 있습니다. 표준의 범위와 내용은 매우 적절하며, 철도 응용 분야에서 EMC의 중요성을 반영하고 있습니다.
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