oSIST prEN 50121-5:2021
(Main)Railway applications - Electromagnetic compatibility - Part 5: Emission and immunity of fixed power supply installations and apparatus
Railway applications - Electromagnetic compatibility - Part 5: Emission and immunity of fixed power supply installations and apparatus
This European Standard applies to emission and immunity aspects of EMC for electrical and electronic
apparatus and systems intended for use in railway fixed installations for power supply. This includes
the power feed to the apparatus, the apparatus itself with its protective control circuits, trackside items
such as switching stations, power autotransformers, booster transformers, substation power
switchgear and power switchgear to other longitudinal and local supplies.
Filters operating at railway system voltage (for example, for harmonic suppression or power factor
correction) are not included in this standard since each site has special requirements. Filters would
normally have separate enclosures with separate rules for access. If electromagnetic limits are
required, these will appear in the specification for the equipment.
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 are not intended to
be applicable to the intentional transmission from a radio-transmitter as defined by the ITU.
The frequency range considered is from DC to 400 GHz. No measurements need to be performed at
frequencies where no requirement is specified.
Emission and immunity limits are given for items of apparatus which are situated:
a) within the boundary of a substation which delivers electric power to a railway;
b) beside the track for the purpose of controlling or regulating the railway power supply, including
power factor correction;
c) along the track for the purpose of supplying electrical power to the railway other than by means of
the conductors used for contact current collection, and associated return conductors. Included are
high voltage feeder systems within the boundary of the railway which supply substations at which
the voltage is reduced to the railway system voltage;
d) beside the track for controlling or regulating electric power supplies to ancillary railway uses. This
category includes power supplies to marshalling yards, maintenance depots and stations;
e) various other non-traction power supplies from railway sources which are shared with railway
traction.
The immunity levels given in this standard apply for:
- vital equipment such as protection devices;
- equipment having connections to the traction power conductors;
- apparatus inside the 3 m zone;
- ports of apparatus inside the 10 m zone with connection inside the 3 m zone;
- ports of apparatus inside the 10 m zone with cable length > 30 m.
Apparatus and systems which are in an environment which can be described as residential,
commercial or light industry, even when placed within the physical boundary of the railway substation,
shall comply with EN 61000-6-1:2007 for immunity and EN 61000-6-3:2007 for emission requirements.
Excluded from the immunity requirements of this standard is power supply apparatus which is
intrinsically immune to the tests defined in Tables 1 to 6.
NOTE An example is an 18 MVA 230 kV to 25 kV power supply transformer.
These specific provisions are to be used in conjunction with the general provisions in EN 50121-1.
This part of the standard covers requirements for both apparatus and fixed installations. The sections
for fixed installations are not relevant for CE marking.
Bahnanwendungen - Elektromagnetische Verträglichkeit - Teil 5: Störaussendungen und Störfestigkeit von ortsfesten Anlagen und Einrichtungen der Bahnenergieversorgung
Applications ferroviaires - Compatibilité électromagnétique - Partie 5 : Emission et immunité des installations fixes d'alimentation de puissance et des équipements associés
Železniške naprave - Elektromagnetna združljivost - 5. del: Sevanje in odpornost stabilnih močnostnih napajalnih inštalacij in naprav
General Information
RELATIONS
Standards Content (sample)
SLOVENSKI STANDARD
oSIST prEN 50121-5:2021
01-julij-2021
Železniške naprave - Elektromagnetna združljivost - 5. del: Sevanje in odpornost
stabilnih močnostnih napajalnih inštalacij in naprav
Railway applications - Electromagnetic compatibility - Part 5: Emission and immunity of
fixed power supply installations and apparatusBahnanwendungen - Elektromagnetische Verträglichkeit - Teil 5: Störaussendungen und
Störfestigkeit von ortsfesten Anlagen und Einrichtungen der Bahnenergieversorgung
Applications ferroviaires - Compatibilité électromagnétique - Partie 5 : Emission et
immunité des installations fixes d'alimentation de puissance et des équipementsassociés
Ta slovenski standard je istoveten z: prEN 50121-5:2021
ICS:
33.100.01 Elektromagnetna združljivost Electromagnetic compatibility
na splošno in general
45.020 Železniška tehnika na Railway engineering in
splošno general
oSIST prEN 50121-5:2021 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
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oSIST prEN 50121-5:2021
EUROPEAN STANDARD DRAFT
prEN 50121-5
NORME EUROPÉENNE
EUROPÄISCHE NORM
July 2021
ICS Will supersede EN 50121-5:2017 and all of its
amendments and corrigenda (if any)
English Version
Railway applications - Electromagnetic compatibility - Part 5:
Emission and immunity of fixed power supply installations and
apparatus
Applications ferroviaires - Compatibilité électromagnétique - Bahnanwendungen - Elektromagnetische Verträglichkeit -
Partie 5 : Emission et immunité des installations fixes Teil 5: Störaussendungen und Störfestigkeit von ortsfesten
d'alimentation de puissance et des équipements associés Anlagen und Einrichtungen der Bahnenergieversorgung
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: 73239 Ref. No. prEN 50121-5:2021 E---------------------- Page: 3 ----------------------
oSIST prEN 50121-5:2021
prEN 50121-5:2021 (E)
Contents
European foreword ................................................................................................................................... 3
Introduction ............................................................................................................................................... 4
1 Scope ............................................................................................................................................. 5
2 Normative references ..................................................................................................................... 5
3 Terms, definitions and abbreviations .............................................................................................. 6
3.1 Terms and definitions ................................................................................................................ 6
3.2 Abbreviations ............................................................................................................................. 7
4 Performance criteria ....................................................................................................................... 7
5 Emission tests and limits ................................................................................................................ 8
5.1 Emission from the substation to the outside world .................................................................... 8
5.2 Emission test for apparatus operating at less than 1 000 V rms AC ......................................... 8
5.3 Emission values within the boundary of the substation ............................................................. 8
6 Immunity requirements ................................................................................................................... 8
7 Fixed power supplies on railway property which are not used for railway traction purposes ....... 16
Annex A (informative) Emission within the boundary of the substation for normal operation and
during the operation of switches ................................................................................................... 17
Annex ZZ (informative) Relationship between this European standard and the essential
requirements of Directive 2014/30/EU [2014 OJ L96] aimed to be covered ................................ 21
Bibliography ............................................................................................................................................ 22
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prEN 50121-5:2021 (E)
European foreword
This document (prEN 50121-5:2021) has been prepared by CLC/TC 9X, “Electrical and electronic
applications for railways”.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)
This document will supersede EN 50121-5:2017 and all of its amendments and corrigenda (if any).
EN 50121-5:2020 includes the following significant technical changes with respect to
EN 50121-5:2017:— Update of scope (Clause 1);
— Update of normative references (Clause 2);
— Introduction of performance criteria (Clause 4);
— Update of Clause 6, paragraphs from Clause 1 were introduced;
— revision of Annex ZZ.
This European Standard is to be read in conjunction with EN 50121-1.
This document has been prepared under a mandate given to CENELEC by the European Commission
and the European Free Trade Association, and supports essential requirements of EU Directive(s).
For the relationship with EU Directive(s) see informative Annex ZZ, which is an integral part of this
document.This standard forms Part 5 of the European Standard series EN 50121, published under the general
title “Railway applications - Electromagnetic compatibility”. The series consists of:
— Part 1: General— 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
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Introduction
The requirements of this standard have been specified so as to ensure a level of electromagnetic
emission which will cause minimal disturbance to other equipment. The levels, however, do not cover
the following cases:a) which may occur with an extremely low probability of occurrence in any location;
b) where highly susceptible apparatus will be used in close proximity of the equipment covered by
this standard, in which case further measures may have to be taken.The emission limits given are on the basis that the equipment of the product family range is installed in
railway substation areas.---------------------- Page: 6 ----------------------
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1 Scope
This document applies to emission and immunity aspects of EMC for electrical and electronic
apparatus and systems intended for use in railway fixed installations for power supply. This includes
the power feed to the apparatus, the apparatus itself with its protective control circuits, trackside items
such as switching stations, power autotransformers, booster transformers, substation power
switchgear and power switchgear to other longitudinal and local supplies.Filters operating at railway system voltage (for example, for harmonic suppression or power factor
correction) are not included in this document since each site has special requirements. Filters would
normally have separate enclosures with separate rules for access. If electromagnetic limits are
required, these will appear in the specification for the equipment.The frequency range considered is from DC to 400 GHz. No measurements need to be performed at
frequencies where no requirement is specified.Emission and immunity limits are given for items of apparatus which are situated:
a) within the boundary of a substation which delivers electric power to a railway;
b) beside the track for the purpose of controlling or regulating the railway power supply, including
power factor correction;c) along the track for the purpose of supplying electrical power to the railway other than by means of
the conductors used for contact current collection, and associated return conductors. Included are
high voltage feeder systems within the boundary of the railway which supply substations at which
the voltage is reduced to the railway system voltage;d) beside the track for controlling or regulating electric power supplies to ancillary railway uses. This
category includes power supplies to marshalling yards, maintenance depots and stations;
e) various other non-traction power supplies from railway sources which are shared with railway
traction.These specific provisions are to be used in conjunction with the general provisions in EN 50121-1.
2 Normative referencesThe following documents are referred to in the text in such a way that some or all of their content
constitutes requirements of this document. For dated references, only the edition cited applies. For
undated references, the latest edition of the referenced document (including any amendments) applies.
EN 50121-1:2017, Railway applications - Electromagnetic compatibility - Part 1: General
EN 50121-2:2017, Railway applications - Electromagnetic compatibility - Part 2: Emission of the whole
railway system to the outside worldEN 61000-4-2:2009, Electromagnetic compatibility (EMC) - Part 4-2: Testing and measurement
techniques - Electrostatic discharge immunity testEN 61000-4-3:2006, Electromagnetic compatibility (EMC) - Part 4-3: Testing and measurement
techniques - Radiated, radio-frequency, electromagnetic field immunity testEN 61000-4-4:2012, Electromagnetic compatibility (EMC) - Part 4-4: Testing and measurement
techniques - Electrical fast transient/burst immunity testEN 61000-4-5:2014, Electromagnetic compatibility (EMC) - Part 4-5: Testing and measurement
techniques - Surge immunity test---------------------- Page: 7 ----------------------
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EN 61000-4-6:2014, Electromagnetic compatibility (EMC) - Part 4-6: Testing and measurement
techniques - Immunity to conducted disturbances, induced by radio-frequency fields
EN 61000-4-8:2010, Electromagnetic compatibility (EMC) - Part 4-8: Testing and measurement
techniques - Power frequency magnetic field immunity testEN IEC 61000-4-18:2020, Electromagnetic compatibility (EMC) - Part 4-18: Testing and measurement
techniques - Damped oscillatory wave immunity test (IEC 61000-4-18:2019 + Cor1: 2019)
EN IEC 61000-6-1:2019, Electromagnetic compatibility (EMC) - Part 6-1: Generic standards - Immunity
standard for residential, commercial and light-industrial environmentsEN IEC 61000-6-3:2021, Electromagnetic compatibility (EMC) - Part 6-3: Generic standards - Emission
standard for equipment in residential environmentsEN IEC 61000-6-4:2019, Electromagnetic compatibility (EMC) - Part 6-4: Generic standards - Emission
standard for industrial environments3 Terms, definitions and abbreviations
3.1 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
— ISO Online browsing platform: available at https://www.iso.org/obp— IEC Electropedia: available at http://www.electropedia.org/
3.1.1
apparatus
electric or electronic product with an intrinsic function intended for implementation into a fixed railway
installation3.1.2
environment
surrounding objects or region which may influence the behaviour of the system and or may be
influenced by the system3.1.3
railway substation
installation, the main function of which is to supply a contact line system at which the voltage of a
primary supply system, and in some cases the frequency, is transformed to the voltage and frequency
of the contact line3.1.4
long bus
bus cables with a length of more than 30 m
3.1.5
3 m zone
area along the railway line within a distance of 3 m from the centreline of the nearest track at both
sides of the track---------------------- Page: 8 ----------------------
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3.1.6
10 m zone
area along the railway line within a distance of 10 m from the centreline of the nearest track at both
sides of the track3.2 Abbreviations
For the purposes of this document, the following abbreviations apply.
AC Alternating current
AM Amplitude modulation
CE Communauté Européenne
DC Direct current
EMC Electromagnetic compatibility
ITU International Telecommunication Union
Rms Root Mean Square
4 Performance criteria
A functional description and a definition of the specific performance criteria of the equipment under test
(EUT), identifying acceptable degradation from normal performance during or as a consequence of
immunity testing, shall be provided in the equipment’s test specification and noted in the test report.
Acceptable degradation is a deviation of performance of the equipment that a reasonable user
accepts, when used as intended.NOTE 1: Generally, the acceptable degradation of performance can be determined from an understanding of the
purpose of the equipment (e.g. from its functional description, documentation or common specifications for that
type of equipment).The EUT’s specific performance criteria shall be consistent with the following general criteria for each
test as specified in Table 2 to Table 6:Performance criterion A:
During and after the immunity test, the equipment shall;
— continue to operate and to remain controllable as intended within the identified acceptable
degradation from normal performance,— not unintentionally change its operating state,
— not unintentionally change any critical stored data.
Performance criterion B:
The immunity test shall not result in;
— the mode of operation after the test being different to that at the beginning of the test,
— unintentional change to critical stored dataAfter the immunity test, the equipment shall operate as intended.
Performance criterion C:
The immunity test may result in loss of function, provided the function is self-recoverable, or can be
restored by the operation of the controls by the user. A reboot or re-start operation is allowed. The
immunity test shall not result in an unintentional change to critical stored data.
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5 Emission tests and limits
5.1 Emission from the substation to the outside world
Limit values for this emission, over the frequency range 150 kHz to 1 GHz are given in EN 50121-2.
Guidance values are given in EN 50121-2 for emission of DC and power frequency magnetic fields.
Conductors (overhead or underground) between the substation and the railway are part of the railway
installation, but because of their wide variety of positions and ampere loadings, limit values cannot be
set for the magnetic fields which they produce.No limits are set for emissions into the active space of the underground railway due to the complexities
of obtaining measurements in the confined space and the lack of a precise method of relating the
measured values to the degree of disturbance which other apparatus would suffer.No measurements are necessary for total underground railway systems with no surface operation.
5.2 Emission test for apparatus operating at less than 1 000 V rms ACThe emission limits for apparatus covered by this standard which is supplied with electrical power at a
voltage below 1 000 V rms are given on a port by port basis in EN IEC 61000-6-4.5.3 Emission values within the boundary of the substation
Because there is such a wide variety of options for the design and the construction of the substation,
limits are not given for emission within the general space inside the boundary of the substation.
Practical measurements have been made and guidance values are given in Annex A. These are for
information only a...
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