FprEN 50121-3-2
(Main)Railway applications - Electromagnetic compatibility - Part 3-2: Rolling stock - Apparatus
Railway applications - Electromagnetic compatibility - Part 3-2: Rolling stock - Apparatus
This European Standard applies to emission and immunity aspects of EMC for electrical and electronic apparatus intended for use on railway rolling stock. EN 50121-3-2 applies for the integration of apparatus on rolling stock. The frequency range considered is from DC to 400 GHz. No measurements need to be performed at frequencies where no requirement is specified. The application of tests shall depend on the particular apparatus, its configuration, its ports, its technology and its operating conditions. This standard takes into account the internal environment of the railway rolling stock and the external environment of the railway, and interference to the apparatus from equipment such as hand-held radio- transmitters. If a port is intended to transmit or receive for the purpose of radio communication (intentional radiators, e.g. transponder systems), then the radiated emission requirement in this standard is not intended to be applicable to the intentional transmission from a radio-transmitter as defined by the ITU. Immunity limits do not apply in the exclusion bands as defined in the corresponding EMC related standard for radio equipment. This standard does not apply to transient emissions when starting or stopping the apparatus. The objective of this standard is to define limits and test methods for electromagnetic emissions and immunity test requirements in relation to conducted and radiated disturbances. These limits and tests represent essential electromagnetic compatibility requirements. Emission requirements have been selected so as to ensure that disturbances generated by the apparatus operated normally on railway rolling stock do not exceed a level which could prevent other apparatus from operating as intended. The emission limits given in this standard take precedence over emission requirements for individual apparatus on board the rolling stock given in other standards. Likewise, the immunity requirements have been selected so as to ensure an adequate level of immunity for rolling stock apparatus. The levels do not however cover all cases which may occur with an extremely low probability of occurrence in any location. Specific requirements which deviate from this standard shall be specified. Test requirements are specified for each port considered. These specific provisions are to be used in conjunction with the general provisions in EN 50121-1.
Bahnanwendungen - Elektromagnetische Verträglichkeit - Teil 3-2: Bahnfahrzeuge - Geräte
Applications ferroviaires - Compatibilité électromagnétique - Partie 3-2: Matériel roulant - Appareils
Železniške naprave - Elektromagnetna združljivost - 3-2. del: Vozna sredstva - Naprave
General Information
- Status
- Not Published
- Publication Date
- 12-Nov-2023
- Technical Committee
- CLC/TC 9X - Electrical and electronic applications for railways
- Current Stage
- 5098 - Decision to drop project - Standstill maintained / released - Formal Approval
- Start Date
- 02-Mar-2024
- Completion Date
- 23-Sep-2025
Relations
- Effective Date
- 22-Dec-2020
- Effective Date
- 22-Dec-2020
Overview
FprEN 50121-3-2 is a European standard developed by CLC that focuses on electromagnetic compatibility (EMC) requirements for electrical and electronic apparatus installed on railway rolling stock. This standard addresses both emission and immunity aspects of EMC to ensure that apparatus integrated into rolling stock operate reliably without causing or being affected by electromagnetic disturbances. It covers equipment functioning in a frequency range from DC up to 400 GHz.
The standard is essential for manufacturers and integrators of railway apparatus to verify compliance with EMC requirements, supporting seamless and safe railway operations. It supplements the general provisions described in EN 50121-1 and takes into account the unique environmental conditions inside rolling stock as well as external sources of electromagnetic interference, including handheld radio transmitters.
Key Topics
Scope and Frequency Range
Applies to electrical and electronic apparatus on railway rolling stock with consideration of internal and external electromagnetic environments, covering frequencies from direct current (DC) to 400 GHz.Emission and Immunity Requirements
Defines limits and test methods for conducted and radiated disturbances to ensure the apparatus does not interfere with other equipment and maintains sufficient immunity to external electromagnetic disturbances.Ports and Interfaces
Specifies test requirements on various ports of the apparatus such as AC/DC power ports, I/O ports, and enclosure ports. Testing is tailored to apparatus configuration, technology, and operating conditions.Performance Criteria
Sets functional performance levels during and after immunity tests classified as:- Criterion A: Equipment continues operating as intended without unintentional changes.
- Criterion B: Operation must return to initial mode post-test without data loss.
- Criterion C: Temporary loss of function allowed if recoverable without critical data loss.
Testing Conditions
Testing is to be performed under normal operating modes that produce maximum emissions or susceptibility, using representative auxiliary equipment where necessary.Emissions Limits
Radiated emission limits comply with EN IEC 61000-6-4 industrial environment standards. Measurement distances and configurations are specified to ensure reproducibility and comparability.Relation to Other Standards
Works in conjunction with EN 50121-1 (General EMC for railway applications) and EN 50121-3-1 (EMC for rolling stock trains and vehicles). It also references international EMC test methods such as those from CISPR and IEC 61000 series.
Applications
Rolling Stock Apparatus Integration
Ensures electrical and electronic equipment installed on trains, trams, and other rolling stock meet stringent EMC requirements for their safe and interference-free operation.Railway Equipment Manufacturing
Helps designers and manufacturers of railway apparatus meet legal and technical EMC standards, supporting product certification and market access within the European Union.EMC Testing and Certification
Provides a framework for laboratories to conduct emission and immunity tests on rolling stock equipment under controlled and replicable conditions.Harmonization of Railway EMC
By standardizing emission and immunity requirements, this standard supports interoperability and reliability of complex electrical systems on modern rail vehicles.Minimizing Electromagnetic Interference (EMI)
Addresses disturbances from on-board power converters, radio communication devices, and typical electromagnetic sources in the railway environment.
Related Standards
EN 50121-1 - Railway applications - Electromagnetic compatibility - Part 1: General
Provides foundational EMC principles and measurement methodologies for railway applications.prEN 50121-3-1 - Railway applications - Electromagnetic compatibility - Part 3-1: Rolling stock - Train and complete vehicle
Addresses EMC requirements at the train and complete vehicle level, complementing apparatus-level provisions.EN IEC 61000-6-4 - EMC Generic standards - Emission standard for industrial environments
Defines limits and test methods for radiated emissions relevant to rolling stock enclosure ports.EN 55016-2-1 - Radio disturbance and immunity measuring apparatus and methods
Specifies conducted disturbance measurement techniques applied in rolling stock equipment testing.IEC 61000-4 series - EMC Testing and measurement techniques (includes Electrostatic discharge, radiated immunity, fast transient, surge, and conducted immunity tests)
Internationally recognized methodologies for EMC immunity testing referenced for apparatus evaluation.Directive 2014/30/EU - Electromagnetic Compatibility Directive
The standard supports fulfilling essential EMC requirements mandated for equipment placed on the EU market.
Conclusion
FprEN 50121-3-2 is a critical European standard defining electromagnetic compatibility requirements for electrical and electronic apparatus used in railway rolling stock. It safeguards against electromagnetic interference impacts by setting clear emission limits and immunity thresholds, while outlining practical test methods applicable to various apparatus ports. This standard ensures that railway equipment operates safely and reliably in complex electromagnetic environments, supporting harmonization and compliance within the rail industry.
Keywords: FprEN 50121-3-2, railway applications, electromagnetic compatibility, EMC, rolling stock apparatus, emissions limits, immunity requirements, conducted disturbances, radiated emissions, railway rolling stock, railway EMC standards, railway equipment testing, EN 50121-1, EN IEC 61000-6-4, EMC testing methods, European railway standards, CLC.
Frequently Asked Questions
FprEN 50121-3-2 is a draft published by CLC. Its full title is "Railway applications - Electromagnetic compatibility - Part 3-2: Rolling stock - Apparatus". This standard covers: This European Standard applies to emission and immunity aspects of EMC for electrical and electronic apparatus intended for use on railway rolling stock. EN 50121-3-2 applies for the integration of apparatus on rolling stock. The frequency range considered is from DC to 400 GHz. No measurements need to be performed at frequencies where no requirement is specified. The application of tests shall depend on the particular apparatus, its configuration, its ports, its technology and its operating conditions. This standard takes into account the internal environment of the railway rolling stock and the external environment of the railway, and interference to the apparatus from equipment such as hand-held radio- transmitters. If a port is intended to transmit or receive for the purpose of radio communication (intentional radiators, e.g. transponder systems), then the radiated emission requirement in this standard is not intended to be applicable to the intentional transmission from a radio-transmitter as defined by the ITU. Immunity limits do not apply in the exclusion bands as defined in the corresponding EMC related standard for radio equipment. This standard does not apply to transient emissions when starting or stopping the apparatus. The objective of this standard is to define limits and test methods for electromagnetic emissions and immunity test requirements in relation to conducted and radiated disturbances. These limits and tests represent essential electromagnetic compatibility requirements. Emission requirements have been selected so as to ensure that disturbances generated by the apparatus operated normally on railway rolling stock do not exceed a level which could prevent other apparatus from operating as intended. The emission limits given in this standard take precedence over emission requirements for individual apparatus on board the rolling stock given in other standards. Likewise, the immunity requirements have been selected so as to ensure an adequate level of immunity for rolling stock apparatus. The levels do not however cover all cases which may occur with an extremely low probability of occurrence in any location. Specific requirements which deviate from this standard shall be specified. Test requirements are specified for each port considered. These specific provisions are to be used in conjunction with the general provisions in EN 50121-1.
This European Standard applies to emission and immunity aspects of EMC for electrical and electronic apparatus intended for use on railway rolling stock. EN 50121-3-2 applies for the integration of apparatus on rolling stock. The frequency range considered is from DC to 400 GHz. No measurements need to be performed at frequencies where no requirement is specified. The application of tests shall depend on the particular apparatus, its configuration, its ports, its technology and its operating conditions. This standard takes into account the internal environment of the railway rolling stock and the external environment of the railway, and interference to the apparatus from equipment such as hand-held radio- transmitters. If a port is intended to transmit or receive for the purpose of radio communication (intentional radiators, e.g. transponder systems), then the radiated emission requirement in this standard is not intended to be applicable to the intentional transmission from a radio-transmitter as defined by the ITU. Immunity limits do not apply in the exclusion bands as defined in the corresponding EMC related standard for radio equipment. This standard does not apply to transient emissions when starting or stopping the apparatus. The objective of this standard is to define limits and test methods for electromagnetic emissions and immunity test requirements in relation to conducted and radiated disturbances. These limits and tests represent essential electromagnetic compatibility requirements. Emission requirements have been selected so as to ensure that disturbances generated by the apparatus operated normally on railway rolling stock do not exceed a level which could prevent other apparatus from operating as intended. The emission limits given in this standard take precedence over emission requirements for individual apparatus on board the rolling stock given in other standards. Likewise, the immunity requirements have been selected so as to ensure an adequate level of immunity for rolling stock apparatus. The levels do not however cover all cases which may occur with an extremely low probability of occurrence in any location. Specific requirements which deviate from this standard shall be specified. Test requirements are specified for each port considered. These specific provisions are to be used in conjunction with the general provisions in EN 50121-1.
FprEN 50121-3-2 is classified under the following ICS (International Classification for Standards) categories: 33.100.01 - Electromagnetic compatibility in general; 45.060.01 - Railway rolling stock in general. The ICS classification helps identify the subject area and facilitates finding related standards.
FprEN 50121-3-2 has the following relationships with other standards: It is inter standard links to EN 50121-3-2:2016, EN 50121-3-2:2016/A1:2019. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
FprEN 50121-3-2 is associated with the following European legislation: EU Directives/Regulations: 2014/30/EU; Standardization Mandates: M/552. 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 FprEN 50121-3-2 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 CLC standards.
Standards Content (Sample)
SLOVENSKI STANDARD
oSIST prEN 50121-3-2:2021
01-julij-2021
Železniške naprave - Elektromagnetna združljivost - 3-2. del: Vozna sredstva -
Naprave
Railway applications - Electromagnetic compatibility - Part 3-2: Rolling stock - Apparatus
Ta slovenski standard je istoveten z: prEN 50121-3-2
ICS:
33.100.01 Elektromagnetna združljivost Electromagnetic compatibility
na splošno in general
45.060.01 Železniška vozila na splošno Railway rolling stock in
general
oSIST prEN 50121-3-2:2021 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
oSIST prEN 50121-3-2:2021
oSIST prEN 50121-3-2:2021
EUROPEAN STANDARD DRAFT
prEN 50121-3-2
NORME EUROPÉENNE
EUROPÄISCHE NORM
July 2021
ICS Will supersede EN 50121-3-2:2016 and all of its
amendments and corrigenda (if any)
English Version
Railway applications - Electromagnetic compatibility - Part 3-2:
Rolling stock - Apparatus
Applications ferroviaires - Compatibilité électromagnétique - Bahnanwendungen - Elektromagnetische Verträglichkeit -
Partie 3-2: Matériel roulant - Appareils Teil 3-2: Bahnfahrzeuge - Geräte
This draft European Standard is submitted to CENELEC members for enquiry.
Deadline for CENELEC: 2021-10-15.
It has been drawn up by CLC/TC 9X.
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
© 2021 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Project: 73240 Ref. No. prEN 50121-3-2 E
oSIST prEN 50121-3-2:2021
prEN 50121-3-2:2021 (E)
1 Contents Page
3 European foreword . 3
4 1 Scope . 4
5 2 Normative references . 4
6 3 Terms, definitions and abbreviations . 5
7 4 Performance criteria . 6
8 5 Conditions during testing . 7
9 6 Applicability . 7
10 7 Emission tests and limits . 7
11 8 Immunity requirements . 10
12 Annex A (informative) Examples of apparatus and ports . 14
13 Annex B (informative) Conducted disturbances generated by power converters . 20
14 Annex ZZ (informative) Relationship between this European standard and the essential
15 requirements of Directive 2014/30/EU [2014 OJ L96] aimed to be covered . 21
16 Bibliography . 22
oSIST prEN 50121-3-2:2021
prEN 50121-3-2:2021 (E)
18 European foreword
19 This document (prEN 50121-3-2:2021) has been prepared by CLC/TC 9X “Electrical and electronic
20 applications for railways”.
21 The following dates are proposed:
• latest date by which the existence of this (doa) dor + 6 months
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 be (to be confirmed or
withdrawn modified when voting)
22 This document will supersede EN 50121-3-2:2016 and all of its amendments and corrigenda (if any).
23 prEN 50121-3-2:2021 includes the following significant technical changes with respect to
24 EN 50121-3-2:2016:
25 — Update of scope (Clause 1);
26 — Update of normative references (Clause 2);
27 — Introduction of performance criteria (Clause 4);
28 — Update of Clause 5, three paragraphs from Clause 1 were introduced;
29 — revision of Annex ZZ.
30 This European Standard is read in conjunction with EN 50121-1.
31 This document has been prepared under a mandate given to CENELEC by the European Commission
32 and the European Free Trade Association, and supports essential requirements of EU Directive(s).
33 For the relationship with EU Directive(s) see informative Annex ZZ, which is an integral part of this
34 document.
35 This standard forms Part 3-2 of the European Standard series EN 50121, published under the general
36 title “Railway applications - Electromagnetic compatibility”. The series consists of:
37 — Part 1: General;
38 — Part 2: Emission of the whole railway system to the outside world;
39 — Part 3-1: Rolling stock - Train and complete vehicle;
40 — Part 3-2: Rolling stock – Apparatus;
41 — Part 4: Emission and immunity of the signalling and telecommunications apparatus;
42 — Part 5: Emission and immunity of fixed power supply installations and apparatus.
oSIST prEN 50121-3-2:2021
prEN 50121-3-2:2021 (E)
43 1 Scope
44 This document applies to emission and immunity aspects of EMC for electrical and electronic
45 apparatus intended for use on railway rolling stock. EN 50121-3-2 applies for the integration of
46 apparatus on rolling stock.
47 The frequency range considered is from DC to 400 GHz. No measurements need to be performed at
48 frequencies where no requirement is specified.
49 This document takes into account the internal environment of the railway rolling stock and the external
50 environment of the railway, and interference to the apparatus from equipment such as hand-held radio-
51 transmitters.
52 The objective of this document is to define limits and test methods for electromagnetic emissions and
53 immunity test requirements in relation to conducted and radiated disturbances.
54 These limits and tests represent essential electromagnetic compatibility requirements.
55 Emission requirements have been selected so as to ensure that disturbances generated by the
56 apparatus operated normally on railway rolling stock do not exceed a level which could prevent other
57 apparatus from operating as intended. The emission limits given in this standard take precedence over
58 emission requirements for individual apparatus on board the rolling stock given in other standards.
59 Test requirements are specified for each port considered.
60 These specific provisions are to be used in conjunction with the general provisions in EN 50121-1.
61 2 Normative references
62 The following documents are referred to in the text in such a way that some or all of their content
63 constitutes requirements of this document. For dated references, only the edition cited applies. For
64 undated references, the latest edition of the referenced document (including any amendments) applies.
65 EN 50121-1:2017, Railway applications - Electromagnetic compatibility - Part 1: General
66 prEN 50121-3-1:2021, Railway applications - Electromagnetic compatibility - Part 3-1: Rolling stock -
67 Train and complete vehicle
68 EN 55016-2-1:2014, Specification for radio disturbance and immunity measuring apparatus and
69 methods - Part 2-1: Methods of measurement of disturbances and immunity - Conducted disturbance
70 measurements (CISPR 16-2-:2014)
71 EN 61000-4-2:2009, Electromagnetic compatibility (EMC) - Part 4-2: Testing and measurement
72 techniques - Electrostatic discharge immunity test (IEC 61000-4-2:2008)
73 EN 61000-4-3:2006, Electromagnetic compatibility (EMC) - Part 4-3: Testing and measurement
74 techniques - Radiated, radio-frequency, electromagnetic field immunity test (IEC 61000-4-3:2006)
75 EN 61000-4-4:2012, Electromagnetic compatibility (EMC) - Part 4-4: Testing and measurement
76 techniques - Electrical fast transient/burst immunity test (IEC 61000-4-4:2012)
77 EN 61000-4-5:2014, Electromagnetic compatibility (EMC) - Part 4-5: Testing and measurement
78 techniques - Surge immunity test (IEC 61000-4-5:2014)
79 EN 61000-4-6:2014, Electromagnetic compatibility (EMC) - Part 4-6: Testing and measurement
80 techniques - Immunity to conducted disturbances, induced by radio-frequency fields
81 (IEC 61000-4-5:2013)
82 EN 61000-4-30:2015, Electromagnetic compatibility (EMC) - Part 4-30: Testing and measurement
83 techniques - Power quality measurement methods (IEC 61000-4-30:2015)
oSIST prEN 50121-3-2:2021
prEN 50121-3-2:2021 (E)
84 EN IEC 61000-6-4:2019, Electromagnetic compatibility (EMC) - Part 6-4: Generic standards - Emission
85 standard for industrial environments (IEC 61000-6-4:2018)
86 3 Terms, definitions and abbreviations
87 3.1 Terms and definitions
88 For the purposes of this document, the following terms and definitions apply.
89 ISO and IEC maintain terminological databases for use in standardization at the following addresses:
90 — ISO Online browsing platform: available at https://www.iso.org/obp
91 — IEC Electropedia: available at http://www.electropedia.org/
92 3.1.1
93 rolling stock apparatus
94 finished product with an intrinsic function intended for implementation into the rolling stock installation
95 3.1.2
96 port
97 particular interface of the specified apparatus with the external environment
98 EXAMPLE: AC power port, DC power port, I/O (input/output) port, earth port.
99 [SOURCE: IEC 60050-821:2015, 821-11-36]
100 3.1.3
101 enclosure port
102 physical boundary of the apparatus through which electromagnetic fields may radiate or impinge
103 Note 1 to entry: The main categories of ports for rolling stock apparatus are presented in Figure 1.
105 Figure 1 — Main categories of ports
106 Typical examples of rolling stock apparatus with their ports are listed in Annex A.
107 Traction power ports are not covered in this European Standard see Annex B.
oSIST prEN 50121-3-2:2021
prEN 50121-3-2:2021 (E)
108 3.2 Abbreviations
AC Alternating current
AM Amplitude modulation
CISPR Comité international spécial des perturbations radioélectriques
DC Direct current
EMC Electromagnetic compatibility
I/O Input / Output
ITU International Telegraph Union
PC Personal computer
THD Total harmonic distortion
TV Television
UN Nominal input voltage
109 4 Performance criteria
110 A functional description and a definition of the specific performance criteria of the equipment under test
111 (EUT), identifying acceptable degradation from normal performance during or as a consequence of
112 immunity testing, shall be provided in the equipment’s test specification and noted in the test report.
113 Acceptable degradation is a deviation of performance of the equipment that a reasonable user
114 accepts, when used as intended.
115 NOTE 1: Generally, the acceptable degradation of performance can be determined from an understanding of the
116 purpose of the equipment (e.g. from its functional description, documentation or common specifications for that
117 type of equipment).
118 The EUT’s specific performance criteria shall be consistent with the following general criteria for each
119 test as specified in Table 3 to Table 5:
120 Performance criterion A:
121 During and after the immunity test, the equipment shall;
122 — continue to operate and to remain controllable as intended within the identified acceptable
123 degradation from normal performance,
124 — not unintentionally change its operating state,
125 — not unintentionally change any critical stored data.
126 Performance criterion B:
127 The immunity test shall not result in;
128 — the mode of operation after the test being different to that at the beginning of the test,
129 — unintentional change to critical stored data
130 After the immunity test, the equipment shall operate as intended.
131 Performance criterion C:
132 The immunity test may result in loss of function, provided the function is self-recoverable, or can be
133 restored by the operation of the controls by the user. A reboot or re-start operation is allowed. The
134 immunity test shall not result in an unintentional change to critical stored data.
135 NOTE 2: Critical data includes data previously saved by the user.
oSIST prEN 50121-3-2:2021
prEN 50121-3-2:2021 (E)
136 5 Conditions during testing
137 It is not always possible to test every function of the apparatus. The tests shall be made at a typical
138 operating mode considered by the manufacturer to produce the largest emission or maximum
139 susceptibility to noise as appropriate in the frequency band being investigated consistent with normal
140 applications. The conditions during testing shall be defined in a test plan (see basic standard of the
141 EN 61000-4 series).
142 The application of tests shall depend on the particular apparatus, its configuration, its ports, its
143 technology and its operating conditions.
144 If the equipment is part of a system, or can be connected to auxiliary equipment, the equipment shall
145 be tested while connected to the minimum representative configuration of auxiliary equipment
146 necessary to exercise the ports. Auxiliary equipment may be simulated.
147 If the equipment has a large number of similar ports or ports with many similar connections, a sufficient
148 number shall be selected to simulate actual operating conditions and to ensure that all the different
149 types of termination are covered. Justification for the selection of the tested ports shall be included in
150 the test report.
151 The configuration and mode of operation shall be specified in the test plan and the actual conditions,
152 during the tests, shall be precisely noted in the test report.
153 The tests shall be carried out within the specified operating range for the apparatus and at its nominal
154 supply voltage, unless otherwise indicated.
155 6 Applicability
156 The measurements in this standard shall be made on the relevant ports of the apparatus.
157 It may be determined from consideration of the electrical characteristics, the connection and the usage
158 of a particular apparatus that some of the tests are not applicable (e.g. radiated immunity of induction
159 motors, transformers). In such cases, the decision not to test has to be recorded in the test plan and
160 test report.
161 If not otherwise specified, the EMC tests shall be type tests.
162 7 Emission tests and limits
163 The emission tests and limits for apparatus covered by this standard are given on a port by port basis.
164 Measurements shall be performed in well-defined and reproducible conditions for each type of
165 disturbance.
166 The radiated emission limits defined for enclosure port in EN IEC 61000-6-4:2019, Table 3 shall be
167 complied with. The description of the test, the test methods and the test set-up are given in Basic
168 Standards which are referred to in EN IEC 61000-6-4.
169 Measurement distance is 10 m according line 3.1 in Table 3 of EN IEC 61000-6-4:2019. A
170 measurement distance of 3 m may be used with the limit increased by 10 dB.
171 Traction converters and auxiliary converters over 50 kVA cannot be tested individually but when the
172 vehicle is tested as a whole in accordance with prEN 50121-3-1:2021.
173 The description of the conducted emission tests, the test methods and the test set-up are given in
174 Basic Standards which are referred to in Tables 1 and 2.
175 The contents of these Basic Standards are not repeated here, however modifications or additional
176 information needed for the practical application of the tests are given in this standard.
177 NOTE The reference to “Basic Standard“ is intended to be limited to those parts of the standard that give
178 the description of the test, the test methods and the test set-up.
oSIST prEN 50121-3-2:2021
prEN 50121-3-2:2021 (E)
180 Table 1 — Emission – Auxiliary AC or DC power ports (input and output)
Test Basic Test Applicability
Port Remarks
specification Standard set-up note
a b c
1.1 Auxiliary supply 150 kHz to 500 kHz 99 dBμV quasi- EN 55016-2- EN 55016-2 See and For the time being there are no
peak 1 -1 limits for shore supply mode.
sinusoidal AC or DC
Therefore the limits given in this
(port 9 on Figures A.1,
500 kHz to 30 MHz 93 dBμV quasi-
table are valid. Other limits may
A.2 and A.4)
peak
apply if connected e.g. to the public
low voltage power supply and
should be specified by the train
operator.
1.2 AC power outlet port 50 Hz to 2 kHz
...
표준 문서 oSIST prEN 50121-3-2:2021에 대한 리뷰는 다음과 같습니다. 이 유럽 표준은 전기 및 전자 기기가 철도 차량에서 사용되는 관련된 방출 및 내성 측면을 다루고 있으며, 주파수 범위는 DC에서 400 GHz까지입니다. 따라서 이 표준은 철도 차량의 기탁 장비의 통합에 적용됩니다. 이 표준의 주요 강점 중 하나는 철도 차량 내부 환경과 외부 환경을 모두 고려한다는 점입니다. 이는 핸드 헬드 무선 송신기와 같은 장비로부터의 간섭을 포함하며, 실제 운영 환경에서의 전자기 호환성(EMC) 요구 사항을 충족시키는 데 중요한 역할을 합니다. 또한, 시험 요구 사항은 특정 기기와 그 구성에 따라 다르며, 이는 장비의 특성에 맞춘 보다 유연하고 효과적인 테스트 접근 방식을 보장합니다. 방출 요구 사항은 철도 차량에서 정상적으로 운영되는 기기가 생성하는 간섭이 다른 장비의 정상 작동을 방해하지 않도록 설정되어 있습니다. 이는 이 표준의 방출 한계가 다른 표준에 명시된 개별 장비의 방출 요구 사항보다 우선함을 의미합니다. 또한 면역 요구 사항은 철도 차량 기기의 적절한 면역 수준을 보장하기 위해 선택되었습니다. 하지만 낮은 확률로 발생할 수 있는 특수한 상황에 대해서는 추가 요구 사항이 필요할 수 있습니다. 시험 요구 사항은 각 포트에 대해 명시되며, 이러한 특정 조항은 EN 50121-1의 일반 조항과 함께 사용해야 합니다. 이 표준은 전자기 방출 및 면역 시험 요구 사항의 한계를 정의하는 것을 목표로 하며, 필요한 전자기 호환성 요구 사항을 충족하는 데 기여합니다. 결론적으로, FprEN 50121-3-2 표준은 철도 애플리케이션의 전자기 호환성을 보장하기 위한 중요한 기준을 제시하며, 철도 차량의 안전하고 안정적인 운영을 위한 필수적인 역할을 하고 있습니다.
FprEN 50121-3-2の規格は、鉄道用途における電磁両立性（EMC）の重要な要素をカバーするものであり、特に鉄道車両における電気および電子機器の適用に焦点を当てています。この欧州標準は、鉄道車両に用いられる機器の発振と耐性に関する具体的な要件を提供し、周波数範囲は直流から400GHzまで対応しています。 この規格の強みは、機器の統合を考慮に入れたテスト方法と限界を明確に定義している点にあります。各機器の構成、ポート、技術、および運用条件に応じて、テストの適用が決まるため、非常に柔軟な対応が可能です。また、鉄道車両内の内部環境と外部環境の両方を考慮しており、特に携帯無線送信機からの干渉についても言及されています。 さらに、意図的な送信を行うポートに関しては、ITUが定義する無線送信機からの意図的な発信に関する規定が適用されないため、無線通信システムの設計にも有益です。これにより、意図しない干渉を避けつつ、必要な発振要件を満たすことができます。 EMCに関する限界およびテストの要求も、鉄道車両機器にとって重要な基準となり、他の機器が本来の目的で正常に動作できるように配慮されています。発振限界は、さまざまな鉄道車両の運用中に生成される干渉が所定レベルを超えないよう設定されています。また、耐性要件も十分な水準が確保されており、異常事態が発生した場合にも対応できる能力を持っています。 この標準は、特定の要求がある場合にはそれらを明記することを求めており、各ポートに関するテスト要件が明確に定められているため、必要に応じて個別対応が可能です。EN 50121-1に記載された一般的な規定とも併用して運用されるため、包括的なガイドラインが提供される点も優れています。 FprEN 50121-3-2は、鉄道車両に使用される電気および電子機器のための電磁両立性要件を明確化し、特に発振と耐性において合意された限界とテスト方法を提供することから、鉄道産業における安全性とパフォーマンスの向上に寄与する重要な標準です。
The standard FprEN 50121-3-2, titled "Railway applications - Electromagnetic compatibility - Part 3-2: Rolling stock - Apparatus," is a critical document that addresses the emission and immunity aspects of electromagnetic compatibility (EMC) specifically for electrical and electronic apparatus intended for railway rolling stock. The scope of this standard is comprehensive, covering a frequency range from DC to 400 GHz, making it relevant for a wide variety of applications in the railway sector. One of the key strengths of this standard lies in its detailed approach to the integration of apparatus on rolling stock. By outlining specific limits and test methods for electromagnetic emissions and immunity, it ensures that the apparatus operates efficiently without adversely affecting other equipment. The focus on emission limits to prevent disturbances that could hinder the functioning of other apparatus is a crucial aspect that supports robust railway operations. Additionally, the standard acknowledges the complexities of real-world environments by taking into account both the internal environment of railway rolling stock and external interference from devices such as hand-held radio transmitters. This is particularly significant for ensuring that apparatus used in rolling stock can withstand not only expected conditions but also potential interferences from external sources. The standard also provides a clear distinction regarding intentional radiators, indicating that emissions associated with radio communication are not covered under its requirements. This specificity helps to direct compliance efforts effectively and prevents overlap with other regulations governing radio equipment. Furthermore, the immunity limits are sensibly defined to ensure an adequate level of resilience for rolling stock apparatus against conducted and radiated disturbances. Even though the standard does not account for all potential low-probability occurrences, it does offer a solid foundation for most operational conditions faced in the railway sector. Overall, FprEN 50121-3-2 stands out as a vital standard that not only promotes EMC compliance but also enhances safety and operational integrity in railway systems. Its detailed guidelines serve as an essential tool for manufacturers and operators of railway rolling stock apparatus, reaffirming its relevance in the continuously evolving landscape of railway technology.
Le document de normalisation FprEN 50121-3-2 se concentre sur les applications ferroviaires en matière de compatibilité électromagnétique (CEM), plus précisément pour les trains et l'appareillage électrique qui y est utilisé. Cette norme européenne joue un rôle crucial en établissant des exigences de limites et des méthodes de test concernant les émissions électromagnétiques et l'immunité, ce qui est essentiel pour assurer un fonctionnement optimal des équipements sur le matériel roulant. Le champ d'application de cette norme est bien défini, en considérant les aspects d'émission et d'immunité de la CEM pour les appareils électriques et électroniques intégrés au matériel roulant. La norme est conçue pour s'appliquer à une large gamme de fréquences, allant du courant continu jusqu'à 400 GHz, ce qui couvre un vaste éventail d'applications susceptibles d'être mises en œuvre dans le secteur ferroviaire. Un point fort de FprEN 50121-3-2 est son approche soigneusement intégrée des environnements internes et externes au matériel roulant. Elle prend en compte non seulement les interférences générées par d'autres équipements, tels que les émetteurs radio portatifs, mais elle établit aussi des exigences claires concernant les limites d'émission. Les niveaux d'émission inclus dans cette norme sont définis de manière à ce que les perturbations générées ne nuisent pas au fonctionnement normal d'autres appareils, ce qui renforce la fiabilité et la sécurité des opérations ferroviaires. En outre, les exigences d'immunité sont spécialement choisies pour garantir un niveau adéquat face aux perturbations électromagnétiques, bien que la norme reconnaisse qu'elle ne couvre pas tous les scénarios possibles, notamment ceux à très faible probabilité d'occurrence. Cela souligne la flexibilité de la norme et sa capacité à s'adapter à des situations spécifiques tout en maintenant des critères de performance rigoureux. Les exigences et méthodes de test sont également détaillées par port, assurant que chaque configuration d'appareillage électrique soit évaluée de manière appropriée. Cette spécificité permet de garantir que chaque appareil conforme à la norme soit évalué dans le cadre de son rôle et de ses conditions d’exploitation spécifiques, ce qui renforce la pertinence des tests de CEM pour le matériel roulant. Enfin, en insistant sur le fait que les limites d'émission définies dans cette norme ont préséance sur celles des normes individuelles, FprEN 50121-3-2 se positionne non seulement comme une référence clé, mais aussi comme un outil essentiel pour le développement et la mise en œuvre de systèmes ferroviaires sûrs et efficaces.
Die Norm FprEN 50121-3-2 behandelt die elektromagnetische Verträglichkeit (EMC) von elektrischen und elektronischen Apparaten, die für den Einsatz an Schienenfahrzeugen vorgesehen sind. Sie deckt die Emissions- und Immunitätsaspekte ab und legt die notwendige Integrationsnorm für Apparate im Schienenfahrzeug fest. Dies umfasst einen Frequenzbereich von DC bis 400 GHz und definiert spezifische Testmethoden und -anforderungen, die von der jeweiligen Apparatekonfiguration, den Ports, Technologien und Betriebsbedingungen abhängen. Eine der wesentlichen Stärken dieser Norm ist die umfassende Berücksichtigung sowohl des internen als auch des externen Umfelds des Schienenfahrzeugs. Dies ist besonders relevant, da sie potenzielle Störungen durch externer Elektronik, wie z.B. Handfunksender, einbezieht und sicherstellt, dass die Störungen, die von den Apparaten innerhalb des Schienenfahrzeugs erzeugt werden, andere Apparate nicht in ihrer Funktionalität beeinträchtigen. Die Norm legt klare Emissionsgrenzen fest, die garantieren, dass der Betrieb anderer Apparate nicht beeinträchtigt wird, was für den sicheren und effizienten Betrieb im Schienenverkehr unerlässlich ist. Ein weiterer bedeutender Aspekt der Norm FprEN 50121-3-2 ist das Augenmerk auf die Immunitätsanforderungen, die so gewählt wurden, dass sie ein angemessenes Niveau für die Geräte an Schienenfahrzeugen gewährleisten. Diese Immunitätsgrenzen sind speziell auf die Umgebung und die möglichen elektromagnetischen Störungen innerhalb und außerhalb der Schienenfahrzeuge abgestimmt, wobei zu beachten ist, dass bestimmte Ausschlussbänder in Bezug auf die elektromagnetische Verträglichkeit für Funkgeräte nicht abgedeckt sind. Die Norm stellt sicher, dass spezifische Anforderungen für verschiedene Ports ausgearbeitet werden, wodurch eine maßgeschneiderte Bewertung und Tests für unterschiedliche Anwendungen ermöglicht werden. Dies trägt zur Standardisierung der Anforderungen und zur Gewährleistung der Konformität im gesamten europäischen Schienennetz bei. Insgesamt zeigt FprEN 50121-3-2 eine klare und durchdachte Standardisierung in der EMC für Schienenfahrzeuge, die sowohl Sicherheit als auch Funktionalität der elektrischen und elektronischen Systeme auf höchstem Niveau gewährleistet. Die Norm ist daher von großer Relevanz für Hersteller und Betreiber von Schienenfahrzeugen, da sie essentielle Anforderungen an die elektromagnetische Verträglichkeit definiert.
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