oSIST prEN 50121-3-2:2021
(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
RELATIONS
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 50121-3-2ICS:
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.
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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 - GeräteThis 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---------------------- Page: 3 ----------------------
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
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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.
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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 references62 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 vehicle68 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)---------------------- Page: 6 ----------------------
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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/obp91 — 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 3.1.296 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.
104105 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.---------------------- Page: 7 ----------------------
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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 data130 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.---------------------- Page: 8 ----------------------
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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.179
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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
...
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