IEC 62236-5:2008
(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
IEC 62236-5:2008 applies to emission and immunity aspects of EMC for fixed power supply installations and electrical and electronic apparatus and systems intended to be used in these installations. 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. The main change with respect to the previous edition deals with the requirements for the radiated immunity test.
Applications ferroviaires - Compatibilité électromagnétique - Partie 5: Emission et immunité des installations fixes d'alimentation de puissance et des équipements associés
La CEI 62236-5:2008 s'applique aux aspects d'émission et d'immunité de CEM pour les installations fixes d'alimentation de puissance et les appareils et systèmes électriques et électroniques destinés à être utilisés dans ces installations. Cela concerne l'alimentation des appareils, les appareils eux-mêmes avec leurs circuits de commande de protection, les composants au bord des voies tels que les stations de sectionnement, les autotransformateurs, les transformateurs suceurs, les appareillages de coupure de sous-station et les appareillages de coupure d'autres alimentations longitudinales et locales. Les modifications principales par rapport à l'édition précédente concernent les exigences pour l'essai d'immunité rayonnée.
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IEC 62236-5
Edition 2.0 2008-12
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Railway applications – Electromagnetic compatibility –
Part 5: Emission and immunity of fixed power supply installations and
apparatus
Applications ferroviaires – Compatibilité électromagnétique –
Partie 5: Emission et immunité des installations fixes d'alimentation de
puissance et des équipements associés
IEC 62236-5:2008
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IEC 62236-5
Edition 2.0 2008-12
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Railway applications – Electromagnetic compatibility –
Part 5: Emission and immunity of fixed power supply installations and
apparatus
Applications ferroviaires – Compatibilité électromagnétique –
Partie 5: Emission et immunité des installations fixes d'alimentation de
puissance et des équipements associés
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
R
CODE PRIX
ICS 45.060 ISBN 978-2-88910-650-9
® Registered trademark of the International Electrotechnical Commission
Marque déposée de la Commission Electrotechnique Internationale
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CONTENTS
FOREWORD.3
INTRODUCTION.5
1 Scope .6
2 Normative references.7
3 Terms and definitions.7
4 Performance criteria.8
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 r.m.s. a.c. .9
5.3 Emission values within the boundary of the substation .9
6 Immunity tests and limits .9
7 Fixed power supplies on railway property which are not used for railway traction
purposes .10
Annex A (informative) Emission within the boundary of the substation for normal
operation and during the operation of switches .15
Bibliography.18
Figure 1 – Main categories of ports.8
Figure A.1 – Emission from switches – Peak.16
Figure A.2 – Emission within substation boundary – Peak.17
Table 1 – Immunity – Enclosure port.11
Table 2 – Immunity – Ports for signal lines and data buses not involved in process
control .12
Table 3 – Immunity – Ports for process, measurement and control lines, and long bus
and control lines .12
Table 4 – Immunity – DC input and d. c. output power ports .13
Table 5 – Immunity – AC input and a.c. output power ports.14
Table 6 – Immunity – Earth port .14
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62236-5 © IEC:2008 – 3 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
RAILWAY APPLICATIONS –
ELECTROMAGNETIC COMPATIBILITY –
Part 5: Emission and immunity of fixed power supply
installations and apparatus
FOREWORD
1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising
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8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is
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9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of
patent rights. IEC shall not be held responsible for identifying any or all such patent rights.
International Standard IEC 62236-5 has been prepared by IEC technical committee 9:
Electrical equipment and systems for railways.
This second edition cancels and replaces the first edition published in 2003. This edition
constitutes a technical revision and is based on EN 50121-5:2006.
The main changes with respect to the previous edition are listed below:
– requirements for the radiated immunity test of line 1.2 in Table 1;
– transformation of former Annex B into Bibliography;
– suppression of Annex C.
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The text of this standard is based on the following documents:
FDIS Report on voting
9/1189/FDIS 9/1217/RVD
Full information on the voting for the approval of this standard can be found in the report on
voting indicated in the above table.
This publication has been drafted in accordance with the ISO/IEC Directives, Part 2.
A list of all parts of IEC 62236 series, published under the general title Railway applications –
Electromagnetic compatibility, can be found on the IEC website.
The committee has decided that the contents of this publication will remain unchanged until
the maintenance result date indicated on the IEC web site under "http://webstore.iec.ch" in
the data related to the specific publication. At this date, the publication will be
• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended.
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62236-5 © IEC:2008 – 5 –
INTRODUCTION
The requirements of this part of IEC 62236 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) where the probability of an occurrence likely to produce emissions in excess of those
which would normally be experienced is extremely low,
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.
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RAILWAY APPLICATIONS –
ELECTROMAGNETIC COMPATIBILITY –
Part 5: Emission and immunity of fixed power supply
installations and apparatus
1 Scope
This part of IEC 62236 applies to emission and immunity aspects of EMC for fixed power
supply installations and electrical and electronic apparatus and systems intended to be used
in these installations. 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 (e.g. 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.
The limits in this standard do not apply to intentional communication signals.
The frequency range considered is from d.c. 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 and filtering;
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;
NOTE 1 Examples are one conductor of a 25-0-25 kV 50 Hz system and the 110 kV 16,7 Hz supply systems.
NOTE 2 Similar conductors which are outside the railway boundary are treated as in the public area and are
considered to be general overhead power lines although they feed only the railway.
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.
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 the relevant generic International EMC standard.
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 of this standard.
NOTE 3 An example is an 18 MVA 230 kV to 25 kV power supply transformer.
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62236-5 © IEC:2008 – 7 –
These specific provisions are to be used in conjunction with the general provisions in
IEC 62236-1.
2 Normative references
The following referenced documents are indispensable for the application 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.
IEC 61000-3-2, Electromagnetic compatibility (EMC) – Part 3-2: Limits – Limits for harmonic
current emissions (equipment input current up to and including 16 A per phase)
IEC 61000-3-3, Electromagnetic compatibility (EMC) – Part 3-3: Limits – Limitation of voltage
changes, voltage fluctuations and flicker in public low-voltage supply systems, for equipment
with rated current ≤ 16 A per phase and not subject to conditional connection
IEC 61000-4-2, Electromagnetic compatibility (EMC) – Part 4-2: Testing and measurement
techniques – Electrostatic discharge immunity test
IEC 61000-4-3, Electromagnetic compatibility (EMC) – Part 4-3: Testing and measurement
techniques – Radiated, radio-frequency, electromagnetic field immunity test
IEC 61000-4-4, Electromagnetic compatibility (EMC) – Part 4-4: Testing and measurement
techniques – Electrical fast transient/burst immunity test
IEC 61000-4-5, Electromagnetic compatibility (EMC) – Part 4-5: Testing and measurement
techniques – Surge immunity test
IEC 61000-4-6, Electromagnetic compatibility (EMC) – Part 4-6: Testing and measurement
techniques – Immunity to conducted disturbances, induced by radio-frequency fields
IEC 61000-4-8, Electromagnetic compatibility (EMC) – Part 4-8: Testing and measurement
techniques – Power frequency magnetic field immunity test
IEC 61000-4-12, Electromagnetic compatibility (EMC) – Part 4-12: Testing and measurement
techniques – Ring wave immunity test
IEC 61000-6-4, Electromagnetic compatibility (EMC) – Part 6-4: Generic standards –
Emission standard for industrial environments
IEC 62236-1, Railway applications – Electromagnetic compatibility – Part 1: General
IEC 62236-2, Railway applications – Electromagnetic compatibility – Part 2: Emission of the
whole railway system to the outside world
CISPR 16-1-1, Specification for radio disturbance and immunity measuring apparatus and
methods – Part 1-1: Radio disturbance and immunity measuring apparatus – Measuring
apparatus
CISPR 22, Information technology equipment – Radio disturbance characteristics – Limits and
methods of measurement
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
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3.1
apparatus
electric or electronic product with an intrinsic function intended for implementation into a fixed
railway installation
3.2
environment
surrounding objects or region which may influence the behaviour of the system and or may be
influenced by the system
3.3
port
particular interface of the apparatus with the external environment, for example a.c. power
port, d.c. power port, I/O (input/output) port, earth port (see Figure 1)
3.4
enclosure port
physical boundary of the apparatus through which electromagnetic fields may radiate or
impinge
3.5
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 line
3.6
railway supply lines
conductors running within the boundary of the railway which supply power to only the railway
but are not energised at railway system voltage
Enclosure port
Signal and communication port
AC power port
Process, measurement and
APPARATUS control port
DC power port Earth port
IEC 2188/08
Figure 1 – Main categories of ports
4 Performance criteria
The variety and diversity of the apparatus within the scope of this standard makes it difficult
to define precise criteria for the evaluation of the immunity test results. Three general levels
of performance are therefore used, as defined in IEC 62236-1.
5 Emission tests and limits
5.1 Emission from the substation to the outside world
Limit values for this emission, over the frequency range 9 kHz to 1 GHz are given in
IEC 62236-2.
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62236-5 © IEC:2008 – 9 –
NOTE 1 Guidance values are given in IEC 62236-2 for emission of d.c. 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.
For apparatus which is under ground, measurements shall be made in the frequency range
9 kHz to 150 kHz at the surface of the ground above the apparatus.
NOTE 2 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.
5.2 Emission test for apparatus operating at less than 1 000 V r.m.s. a.c.
The emission limits for apparatus covered by this standard which is supplied with electrical
power at a voltage below 1 000 V r.m.s. are given on a port by port basis in IEC 61000-6-4,
Table 1.
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 and are not part of the normative content of this
standard.
6 Immunity tests and limits
The immunity test requirements for apparatus covered by this standard are given on a port by
port basis in Tables 1 to 6.
Tests shall be conducted in a well-defined and reproducible manner. The tests shall be
carried out as single tests in sequence. The sequence of testing is optional.
The description of the tests, the test generator, the test methods, and the test set-up are
given in the basic standards which are referred to in Tables 1 to 6. The contents of the basic
standards are not repeated here, however modifications or additional information needed for
the practical application of the tests are given in this standard.
Where possible, the tests shall be made with a typical operating mode chosen to produce the
maximum susceptibility to noise in the frequency band being investigated, consistent with
normal applications. The manufacturer shall define the conditions of the test in the test plan.
NOTE If the apparatus is part of a system or can be connected to auxiliary apparatus, then the apparatus should
preferably be tested while connected to the minimum configuration of auxiliary apparatus necessary to exercise the
test point in accordance with the general methods of CISPR 22 and IEC 61000-4 series.
The configuration and mode of operation during the tests shall be precisely noted in the test
report. It is not always possible to test every function of the apparatus; in such cases the most
critical mode of operation should be selected.
The tests shall be carried out within the specified operating range for the apparatus and at its
rated supply voltage.
Some of the immunity levels are higher than those of the heavy industrial generic standard
because this has been found necessary in practice.
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Voltages induced by traction currents are not addressed here. They shall be covered by the
functional specification.
7 Fixed power supplies on railway property which are not used for railway
traction purposes
These are used for example for signalling systems: station services, office building services,
freight cranes and yard lighting.
They fall into two categories:
a) those that are supplied from non-railway sources. Examples are supplies from the local
public electricity supplier or from separate generators. These are outside the scope of this
standard. For products in the scope of IEC 61000-3-2 or IEC 61000-3-3, the requirements
of those standards apply;
b) those that are supplied from railway sources which are shared with train traction. The
supply voltage may have a substantial harmonic content. It is the responsibility of the body
which puts the apparatus into service to establish the levels of immunity and emission
which will ensure EMC. Examples are: supplies from tertiary windings on rectifier
transformers or from the railway a.c. overhead via transformers.
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62236-5 © IEC:2008 – 11 –
Table 1 – Immunity – Enclosure port
Environmental Test Basic
Test set-up Remarks Performance criteria
phenomena specification standard
1.1 Radio-frequency 80 MHz - 1 000 MHz IEC 61000-4-3 IEC 61000-4-3 The test level specified is the
electromagnetic field, r.m.s. value of the
10 V/m (r.m.s.) Unmodulated carrier A
amplitude modulated unmodulated carrier
80 % AM, 1 kHz
1.2 Radio-frequency 800 MHz - 1 000 MHz
electromagnetic field,
20 V/m (r.m.s.) Unmodulated carrier
from digital mobile
telephones
80 % AM, 1 kHz
See Note 3
1 400 MHz - 2 100 MHz
The test level specified is the
IEC 61000-4-3 IEC 61000-4-3 A
10 V/m (r.m.s.) Unmodulated carrier
r.m.s. value of the
80 % AM, 1 kHz
unmodulated carrier
2 100 MHz - 2 500 MHz
5 V/m (r.m.s.) Unmodulated carrier
80 % AM, 1 kHz
1.3 Power - frequency 16,7 Hz; 50/60 Hz a.c. systems IEC 61000-4-8 IEC 61000-4-8 See Note 1
magnetic field
100 A/m (r.m.s.) All frequencies have to be
tested
A
0 Hz d.c. systems See Note 1
300 A/m
1.4 Electrostatic discharge Contact discharge IEC 61000-4-2 IEC 61000-4-2 See Note 2
± 6 kV
B
Air discharge
± 8 kV
NOTE 1 Test only applies to apparatus containing devices sensitive to magnetic fields, for example Hall elements, electro-dynamic microphones, etc. Unshielded CRT displays can
exhibit interference effects above 1A/m (r.m.s.).
NOTE 2 See basic standard for applicability of contact and/or air discharge test.
NOTE 3 The test in 5.2 of IEC 61000-4-3 should be applied at the digital radio telephone frequencies in use in the countries in which the equipment is intended to be operated.
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Table 2 – Immunity – Ports for signal lines and data buses not involved in process control
Environmental Test Basic
Test set-up Remarks Performance criteria
phenomena specification standard
2.1 Radio-frequency 0,15 MHz - 80 MHz IEC 61000-4-6 IEC 61000-4-6 See Note 1
common mode
10 V (r.m.s.) Unmodulated carrier The test level specified is the
A
r.m.s. value of the
80 % AM, 1 kHz
unmodulated carrier
2.2 Fast transients Peak IEC 61000-4-4 IEC 61000-4-4 See Note 2
± 2 kV
T / T Capacitive clamp used
5/50 ns B
r h
5 kHz Repetition frequency
NOTE 1 The test level can also be defined as the equivalent current into a 150 Ω load.
NOTE 2 Applicable only to ports interfacing with cables whose total length according to the manufacturers functional specification may exceed 1 m.
Table 3 – Immunity – Ports for process, measurement and control lines, and long bus and control lines
Environmental Test Basic
Test set-up Remarks Performance criteria
phenomena specification standard
Radio-frequency
3.1 0,15 MHz - 80 MHz IEC 61000-4-6 IEC 61000-4-6 Se
...
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