SIST EN 62920:2017

SLOVENSKI STANDARD
01-december-2017
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Photovoltaic power generating systems - EMC requirements and test methods for power
conversion equipment
Ta slovenski standard je istoveten z: EN 62920:2017
ICS:
27.160 6RQþQDHQHUJLMD Solar energy engineering
33.100.01 Elektromagnetna združljivost Electromagnetic compatibility
na splošno in general
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD EN 62920
NORME EUROPÉENNE
EUROPÄISCHE NORM
October 2017
ICS 27.160
English Version
Photovoltaic power generating systems - EMC requirements and
test methods for power conversion equipment
(IEC 62920:2017)
Systèmes de production d'énergie photovoltaïque - Photovoltaische Stromerzeugungssysteme - EMV-
Exigences de CEM et méthodes d'essai pour les Anforderungen und Prüfverfahren für Leistungsumrichter
équipements de conversion de puissance (IEC 62920:2017)
(IEC 62920:2017)
This European Standard was approved by CENELEC on 2017-08-30. CENELEC members are bound to comply with the CEN/CENELEC
Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration.
Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC
Management Centre or to any CENELEC member.
This European Standard exists in three official versions (English, French, German). A version in any other language made by translation
under the responsibility of a CENELEC member into its own language and notified to the CEN-CENELEC Management Centre has the
same status as the official versions.
CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus, the Czech Republic,
Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,
Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden,
Switzerland, Turkey and the United Kingdom.

European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2017 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Ref. No. EN 62920:2017 E
European foreword
The text of document 82/1288/FDIS, future edition 1 of IEC 62920, prepared by IEC/TC 82 “Solar
photovoltaic energy systems" was submitted to the IEC-CENELEC parallel vote and approved by
CENELEC as EN 62920:2017.
The following dates are fixed:
(dop) 2018-05-30
• latest date by which the document has to be
implemented at national level by
publication of an identical national
standard or by endorsement
• latest date by which the national (dow) 2020-08-30
standards conflicting with the
document have to be withdrawn
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CENELEC shall not be held responsible for identifying any or all such patent rights.
Endorsement notice
The text of the International Standard IEC 62920:2017 was approved by CENELEC as a European
Standard without any modification.
In the official version, for Bibliography, the following notes have to be added for the standards
indicated:
IEC 60364-1:2005 NOTE Harmonized as HD 60364-1:2008.
IEC 60974-10 NOTE Harmonized as EN 60974-10.
IEC 61000 (series) NOTE Harmonized as EN 61000 (series).
IEC 61800-3 NOTE Harmonized as EN 61800-3.
1)
IEC 61851-21-2 NOTE Harmonized as FprEN 61851-21-2.
IEC 62040-2 NOTE Harmonized as EN 62040-2.

1) To be published. At draft stage.
Annex ZA
(normative)
Normative references to international publications
with their corresponding European publications
The 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.
NOTE 1 When an International Publication has been modified by common modifications, indicated by (mod), the relevant

EN/HD applies.
NOTE 2 Up-to-date information on the latest versions of the European Standards listed in this annex is available here:
www.cenelec.eu.
Publication Year Title EN/HD Year
IEC 61000-3-2 2014 Electromagnetic compatibility (EMC) - Part EN 61000-3-2 2014
3-2: Limits - Limits for harmonic current
emissions (equipment input current 16 A
per phase)
IEC 61000-3-3 2013 Electromagnetic compatibility (EMC) - Part EN 61000-3-3 2013
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 61000-3-11 2000 Electromagnetic compatibility (EMC) -- Part EN 61000-3-11 2000
3-11: Limits - Limitation of voltage
changes, voltage fluctuations and flicker in
public low-voltage supply systems -
Equipment with rated current <= 75 A and
subject to conditional connection
IEC 61000-3-12 2011 Electromagnetic compatibility (EMC) -- Part EN 61000-3-12 2011
3-12: Limits - Limits for harmonic currents
produced by equipment connected to
public low-voltage systems with input
current > 16 A and <= 75 A per phase
IEC 61000-4-2 2008 Electromagnetic compatibility (EMC) -- Part EN 61000-4-2 2009
4-2: Testing and measurement techniques
- Electrostatic discharge immunity test
IEC 61000-4-3 2006 Electromagnetic compatibility (EMC) -- Part EN 61000-4-3 2006
4-3: Testing and measurement techniques
- Radiated, radio-frequency,
electromagnetic field immunity test
+ A1 2007  + A1 2008
+ A2 2010  + A2 2010
IEC 61000-4-4 2012 Electromagnetic compatibility (EMC) -- Part EN 61000-4-4 2012
4-4: Testing and measurement techniques
- Electrical fast transient/burst immunity
test
IEC 61000-4-5 2014 Electromagnetic compatibility (EMC) - Part EN 61000-4-5 2014
4-5: Testing and measurement techniques
- Surge immunity test
IEC 61000-4-6 2013 Electromagnetic compatibility (EMC) -- Part EN 61000-4-6 2014
4-6: Testing and measurement techniques
- Immunity to conducted disturbances,
induced by radio-frequency fields
IEC 61000-4-7 2002 Electromagnetic compatibility (EMC) -- Part EN 61000-4-7 2002
4-7: Testing and measurement techniques
- General guide on harmonics and
interharmonics measurements and
instrumentation, for power supply systems
and equipment connected thereto
+ A1 2008  + A1 2009
IEC 61000-4-11 2004 Electromagnetic compatibility (EMC) -- Part EN 61000-4-11 2004
4-11: Testing and measurement
techniques - Voltage dips, short
interruptions and voltage variations
immunity tests
IEC 61000-4-34 2005 Electromagnetic compatibility (EMC) -- Part EN 61000-4-34 2007
4-34: Testing and measurement
techniques - Voltage dips, short
interruptions and voltage variations
immunity tests for equipment with input
current more than 16 A per phase
IEC/TR 61000-3-6 2008 Electromagnetic compatibility (EMC) - Part - -
3-6: Limits - Assessment of emission limits
for the connection of distorting installations
to MV, HV and EHV power systems
IEC/TR 61000-3-14 2011 Electromagnetic compatibility (EMC) - Part - -
3-14: Assessment of emission limits for
harmonics, interharmonics, voltage
fluctuations and unbalance for the
connection of disturbing installations to LV
power systems
CISPR 11 (mod) 2015 Industrial, scientific and medical equipment EN 55011 2016
- Radio-frequency disturbance
characteristics - Limits and methods of
measurement
+ A1 2016  + A1 2017
CISPR 16-1-2 2014 Specification for radio disturbance and EN 55016-1-2 2014
immunity measuring apparatus and
methods - Part 1-2: Radio disturbance and
immunity measuring apparatus - Coupling
devices for conducted disturbance
measurements
CISPR 32 2015 Electromagnetic compatibility of multimedia EN 55032 2015
equipment - Emission requirements

IEC 62920 ®
Edition 1.0 2017-07
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Photovoltaic power generating systems – EMC requirements and test methods

for power conversion equipment

Systèmes de production d’énergie photovoltaïque – Exigences de CEM et

méthodes d’essai pour les équipements de conversion de puissance

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 27.160 ISBN 978-2-8322-4603-0

– 2 – IEC 62920:2017 © IEC 2017
CONTENTS
FOREWORD . 5
INTRODUCTION . 7
1 Scope . 8
2 Normative references . 8
3 Terms and definitions . 9
4 Classification of PCE . 12
4.1 Category of environment . 12
4.2 Division into classes . 13
4.3 Information for users . 13
5 Test setup for type test . 14
5.1 General . 14
5.2 Configuration of test setups . 14
5.2.1 General . 14
5.2.2 Setups for immunity requirement test . 15
5.2.3 Setups for low frequency emission requirement test . 16
5.2.4 Setups for high frequency emission requirement test . 16
6 Operating conditions during testing. 17
6.1 General . 17
6.2 Operating conditions for immunity requirement test . 17
6.3 Operating conditions for low frequency emission requirement test . 17
6.4 Operating conditions for high frequency emission requirement test . 17
7 Immunity requirements . 18
7.1 Requirements . 18
7.2 Performance criteria . 21
8 Emission requirements . 22
8.1 Low frequency . 22
8.2 High frequency . 24
8.2.1 Conducted emission . 24
8.2.2 Radiated emission . 27
9 Test results and test report . 28
Annex A (informative) Configuration examples of test setups . 29
A.1 General . 29
A.2 Setups for immunity requirement test . 29
A.2.1 Electrostatic discharge . 29
A.2.2 Radiated disturbances . 31
A.2.3 Electrical fast transient/burst . 32
A.2.4 Surge . 34
A.2.5 Conducted disturbances, induced by radio-frequency fields . 36
A.2.6 Voltage dips and interruption . 36
A.3 Setups for high frequency emission requirement test . 37
A.3.1 Conducted disturbances . 37
A.3.2 Radiated disturbances . 39
Annex B (informative) Setups for low frequency emission requirement test . 40
B.1 General . 40
B.2 Example of a test circuit for low frequency emission requirement test . 40
B.2.1 Harmonics . 40

IEC 62920:2017 © IEC 2017 – 3 –
B.2.2 Voltage fluctuations and flicker . 42
Annex C (informative) Test setup for conducted disturbance measurement . 44
C.1 General . 44
C.2 Examples of a test setup . 44
Annex D (informative) Alternative test methods for high-power PCE . 47
D.1 General . 47
D.2 Alternative method for immunity requirement test . 47
D.2.1 Alternative method for EFT/burst immunity test . 47
D.2.2 Alternative method for surge test . 47
D.2.3 Alternative test method for conducted disturbances, induced by radio-
frequency fields . 48
D.2.4 Conducted disturbances measurement . 49
Bibliography . 51

Figure 1 – Example of ports . 10
Figure 2 – Examples of installation of PV systems in both environments . 13
Figure 3 – Overview of harmonic requirements up to 75 A . 23
Figure 4 – Overview of voltage change requirements up to 75 A . 24
Figure A.1 – Example of a test setup for direct application of discharges to PCE . 30
Figure A.2 – Example of a test setup for indirect application of discharges to PCE . 30
Figure A.3 – Example of a test setup for wall-mounted PCE . 32
Figure A.4 – Example of a test setup for direct coupling of the test voltage to AC
mains power ports . 33
Figure A.5 – Example of a test setup for application of the test voltage with a
capacitive coupling clamp . 34
Figure A.6 – Example of a test setup for AC mains power ports . 35
Figure A.7 – Example of a test setup for DC power ports . 35
Figure A.8 – Example of a setup of conducted disturbances immunity test applied for
wall-mounted PCE . 36
Figure A.9 – Example of a test setup using a generator for voltage dips and short
interruptions. 37
Figure A.10 – Example of a test setup of conducted disturbances measurement
applied for wall-mounted PCE . 38
Figure A.11 – Example of a test setup of conducted disturbances measurement
applied for wall-mounted PCE with power circulation . 38
Figure A.12 – Example of a test setup of conducted disturbances measurement
applied for wall-mounted PCE with direct connection to AC mains . 39
Figure A.13 – Example of a test setup of radiated disturbances measurement applied
for wall-mounted PCE . 39
Figure B.1 – Measurement circuit for single-phase two-wire PCE . 40
Figure B.2 – Measurement circuit for single-phase three-wire PCE . 41
Figure B.3 – Measurement circuit for three-phase three-wire PCE . 41
Figure B.4 – Measurement circuit for three-phase four-wire PCE . 41
Figure B.5 – Measurement circuit for single-phase two-wire PCE . 42
Figure B.6 – Measurement circuit for single-phase three-wire PCE . 42
Figure B.7 – Measurement circuit for three-phase three-wire PCE . 43
Figure B.8 – Measurement circuit for three-phase four-wire PCE . 43

– 4 – IEC 62920:2017 © IEC 2017
Figure C.1 – Example of a standardized test setup for conducted disturbances
measurement with AC mains power supply . 45
Figure C.2 – Example of a standardized test setup for conducted disturbances
measurement with a laboratory AC power source . 46
Figure D.1 – Example of an alternative method for EFT/Burst immunity test . 47
Figure D.2 – Example of an alternative coupling/decoupling network for AC mains
power ports . 48
Figure D.3 – Example of a test setup applying clamp injection method to AC mains
power ports . 49
Figure D.4 – Alternative test method of conduced disturbances measurement using
artificial networks as voltage probes . 50

Table 1 – Immunity requirements for class B PCE . 19
Table 2 – Immunity requirements for class A PCE . 20
Table 3 – Voltage dips and interruption immunity requirements for class B PCE . 21
Table 4 – Voltage dips and interruption immunity requirements for class A PCE . 21
Table 5 – Performance criteria for immunity tests . 22
Table 6 – Disturbance voltage limits at the AC mains power port for class A PCE
measured on a test site . 25
Table 7 – Disturbance voltage limits at the AC mains power port for class B PCE
measured on a test site . 25
Table 8 – Disturbance limits at the DC power port for class A PCE measured on a test site . 26
Table 9 – Disturbance limits at the DC power port for class B PCE measured on a test site . 26
Table 10 – Limits of conducted common mode (asymmetric mode) disturbance at the
wired port for class A PCE . 27
Table 11 – Limits of conducted common mode (asymmetric mode) disturbance at the
wired port for class B PCE . 27
Table 12 – Electromagnetic radiation disturbance limits for class A PCE measured on a
test site . 27
Table 13 – Electromagnetic radiation disturbance limits for class B PCE measured on a
test site . 28

IEC 62920:2017 © IEC 2017 – 5 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
PHOTOVOLTAIC POWER GENERATING SYSTEMS –
EMC REQUIREMENTS AND TEST METHODS FOR
POWER CONVERSION EQUIPMENT
FOREWORD
1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising
all national electrotechnical committees (IEC National Committees). The object of IEC is to promote
international co-operation on all questions concerning standardization in the electrical and electronic fields. To
this end and in addition to other activities, IEC publishes International Standards, Technical Specifications,
Technical Reports, Publicly Available Specifications (PAS) and Guides (hereafter referred to as “IEC
Publication(s)”). Their preparation is entrusted to technical committees; any IEC National Committee interested
in the subject dealt with may participate in this preparatory work. International, governmental and non-
governmental organizations liaising with the IEC also participate in this preparation. IEC collaborates closely
with the International Organization for Standardization (ISO) in accordance with conditions determined by
agreement between the two organizations.
2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international
consensus of opinion on the relevant subjects since each technical committee has representation from all
interested IEC National Committees.
3) IEC Publications have the form of recommendations for international use and are accepted by IEC National
Committees in that sense. While all reasonable efforts are made to ensure that the technical content of IEC
Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any
misinterpretation by any end user.
4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications
transparently to the maximum extent possible in their national and regional publications. Any divergence
between any IEC Publication and the corresponding national or regional publication shall be clearly indicated in
the latter.
5) IEC itself does not provide any attestation of conformity. Independent certification bodies provide conformity
assessment services and, in some areas, access to IEC marks of conformity. IEC is not responsible for any
services carried out by independent certification bodies.
6) All users should ensure that they have the latest edition of this publication.
7) No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and
members of its technical committees and IEC National Committees for any personal injury, property damage or
other damage of any nature whatsoever, whether direct or indirect, or for costs (including legal fees) and
expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC
Publications.
8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is
indispensable for the correct application of this publication.
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 62920 has been prepared by IEC technical committee 82: Solar
photovoltaic energy systems.
The text of this International Standard is based on the following documents:
FDIS Report on voting
82/1288/FDIS 82/1313/RVD
Full information on the voting for the approval of this International Standard can be found in
the report on voting indicated in the above table.
This document has been drafted in accordance with the ISO/IEC Directives, Part 2.

– 6 – IEC 62920:2017 © IEC 2017
The committee has decided that the contents of this document will remain unchanged until the
stability date indicated on the IEC website under "http://webstore.iec.ch" in the data related to
the specific document. At this date, the document will be
• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended.
IMPORTANT – The 'colour inside' logo on the cover page of this publication indicates
that it contains colours which are considered to be useful for the correct
understanding of its contents. Users should therefore print this document using a
colour printer.
IEC 62920:2017 © IEC 2017 – 7 –
INTRODUCTION
Background
Power conversion equipment (PCE) is indispensable for solar photovoltaic power energy
systems in order to convert the DC electric power energy generated by solar photovoltaic
panels into AC electric power, and to feed the AC power energy into the AC mains network or
loads.
In recent years, standardization of EMC requirements for PCE has become more active. For
example, CISPR/B has been considering the limits and measurement method for conducted
disturbances at DC power ports of grid connected power converters since 2008. These
proposed limits and measurement methods form the basis of the instructions for
supplementing CISPR 11 in order to cover the set of EMC requirements for the PCE applying
to the solar photovoltaic power energy systems. EMC requirements for PCE were added in
CISPR 11 Ed.6.0 which was published in 2015. Some product committees, which consider
products utilizing PCE, have their own product standards on EMC requirements. SC 22G has
developed IEC 61800-3 to define the limits and test methods for power drive systems. SC 22H
has IEC 62040-2 for uninterrupted power supplies, and TC 26 has IEC 60974-10 for arc
welding. TC 9 sets the emission limits with IEC 62236 (all parts). Moreover, TC 69 will have
IEC 61851-21-2 covering EMC requirements for conducted charging stations for electric
vehicles.
Purpose of the development of a product EMC standard
IEC Guide 107 specifies that TC 77 and CISPR have responsibility for developing the basic
and generic standards for EMC requirements of products. Therefore, product committees are
not free to set their own emission limits. If product committees intend to require immunity to
particular disturbances, they shall refer to these basic EMC immunity standards.
However, when the EMC standards which are developed by TC 77 and CISPR are not
considered suitable for a particular product or electromagnetic environment, product
committees shall seek their assistance and advice for any change in the emission limits
and/or measurement requirements.
Product committees are responsible for selecting the appropriate immunity test items and
levels for their products as well as for defining the relevant performance criteria for the
evaluation of the immunity test results. Consequently, product committees, such as TC 22,
TC 26, TC 9, and TC 69, have their own EMC standard to define EMC limits and test methods
for their products.
On the other hand, TC 82 does not have its own product EMC standards. Therefore, TC 82
has to refer to the generic standards. Nevertheless, TC 82 has the responsibility to consider
EMC requirements for PCE applying to the solar photovoltaic power energy systems, and
TC 82 can take action as follows to develop its own product EMC standards:
a) select the immunity test items in accordance with EMC environments for the solar
photovoltaic power energy systems;
b) supplement generic standards with a detailed description of test conditions and test set up;
c) propose the conditional limits and alternative test methods in terms of installation
environmental and operational conditions;
d) develop appropriate requirements and test method for high power equipment.
This document presents the minimum EMC requirements for PCE applying to solar
photovoltaic power energy systems.
___________
Under preparation. Stage at the time of publication: IEC AFDIS 61851-21-2:2017.

– 8 – IEC 62920:2017 © IEC 2017
PHOTOVOLTAIC POWER GENERATING SYSTEMS –
EMC REQUIREMENTS AND TEST METHODS FOR
POWER CONVERSION EQUIPMENT
1 Scope
This document specifies electromagnetic compatibility (EMC) requirements for DC to AC
power conversion equipment (PCE) for use in photovoltaic (PV) power systems.
The PCE covered by this document can be grid-interactive, which is termed as a grid
connected power converter (GCPC), or stand-alone. It can be supplied by single or multiple
photovoltaic modules grouped in various array configurations, and can be intended for use in
conjunction with batteries or other forms of energy storage.
NOTE A micro inverter is an example of a GCPC supplied by a single photovoltaic module.
This document covers not only PCE connected to a public low voltage AC mains network or
other low voltage AC mains installation, but also PCE connected to a medium or high voltage
AC network with or without step-down power transformers. Requirements for the PCE
connected to a medium or high voltage AC network are specified in this document. However,
some requirements relevant to grid interconnection are addressed with other standards
specifying power quality or their own grid codes in some countries.
NOTE DC/DC converters used for PV systems are not yet covered in this document. They can cause
electromagnetic interference due to conducted disturbances at DC ports.
PCE is assessed with EMC requirements as a type test at a test site. This document provides
test methods and test conditions for PCE as well as emission and immunity requirements, but
not for photovoltaic modules and other balance of system components.
When compliance with EMC requirements at the test site cannot be shown due to technical
reasons of the test site, PCE can be assessed in situ, such as at the manufacturer’s premises
or in the field where the PCE is assembled into a PV power system. However, only high
frequency emission requirements for in situ assessment are specified in CISPR 11.
2 Normative references
The 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.
IEC 61000-3-2:2014, Electromagnetic compatibility (EMC) – Part 3-2: Limits – Limits for
harmonic current emissions (equipment with input current ≤ 16 A per phase)
IEC 61000-3-3:2013, 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 TR 61000-3-6:2008, Electromagnetic compatibility (EMC) – Part 3-6: Limits – Assessment
of emission limits for the connection of distorting installations to MV, HV and EHV power
systems
IEC 62920:2017 © IEC 2017 – 9 –
IEC 61000-3-11:2000, Electromagnetic compatibility (EMC) – Part 3-11: Limits – Limitation of
voltage changes, voltage fluctuations and flicker in public low-voltage supply systems –
Equipment with rated current ≤ 75 A and subject to conditional connection
IEC 61000-3-12:2011, Electromagnetic compatibility (EMC) – Part 3-12: Limits – Limits for
harmonic currents produced by equipment connected to public low-voltage systems with input
current > 16 A and ≤ 75 A per phase
IEC TR 61000-3-14:2011, Electromagnetic compatibility (EMC) – Part 3-14: Assessment of
emission limits for harmonics, interharmonics, voltage fluctuations and unbalance for the
connection of disturbing installations to LV power systems
IEC 61000-4-2:2008, Electromagnetic compatibility (EMC) – Part 4-2: Testing and
measurement techniques – Electrostatic discharge immunity test
IEC 61000-4-3:2006, Electromagnetic compatibility (EMC) – Part 4-3: Testing and measure-
ment techniques – Radiated, radio-frequency, electromagnetic field immunity test
IEC 61000-4-3:2006/AMD1:2007
IEC 61000-4-3:2006/AMD2:2010
IEC 61000-4-4:2012, Electromagnetic compatibility (EMC) – Part 4-4: Testing and
measurement techniques – Electrical fast transient/burst immunity test
IEC 61000-4-5:2014, Electromagnetic compatibility (EMC) – Part 4-5: Testing and
measurement techniques – Surge immunity test
IEC 61000-4-6:2013, Electromagnetic compatibility (EMC) – Part 4-6: Testing and measure-
ment techniques – Immunity to conducted disturbances, induced by radio-frequency fields
IEC 61000-4-7:2002, Electromagnetic compatibility (EMC) – Part 4-7: Testing and
measurement techniques – General guide on harmonics and interharmonics measurements
and instrumentation, for power supply systems and equipment connected thereto
IEC 61000-4-7:2002/AMD1:2008
IEC 61000-4-11:2004, Electromagnetic compatibility (EMC) – Part 4-11: Testing and
measurement techniques – Voltage dips, short interruptions and voltage variations immunity
tests
IEC 61000-4-34:2005, Electromagnetic compatibility (EMC) – Part 4-34: Testing and
measurement techniques – Voltage dips, short interruptions and voltage variations immunity
tests for equipment with input current more than 16 A per phase
CISPR 11:2015, Industrial, scientific and medical equipment – Radio-frequency disturbance
characteristics – Limits and methods of measurement
CISPR 11:2015/AMD1:2016
CISPR 16-1-2:2014, Specification for radio disturbance and immunity measuring apparatus
and methods – Part 1-2: Radio disturbance and immunity measuring apparatus – Coupling
devices for conducted disturbance measurements
CISPR 32:2015, Electromagnetic compatibility of multimedia equipment – Emission
requirements
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.

– 10 – IEC 62920:2017 © IEC 2017
ISO and IEC maintain terminological databases for use in standardization at the following
addresses:
• IEC Electropedia: available at http://www.electropedia.org/
• ISO Online browsing platform: available at http://www.iso.org/obp
3.1
photovoltaic power generating system
PV system
electric power generating system which uses the photovoltaic effect to convert solar power
into electricity
3.2
balance of system component
BOS
parts of a PV system other than the PV array field, including switches, controls, meters, power
conditioning equipment, PV array support structure, and electricity storage components, if any
Note 1 to entry: This note only applies to the French language.
[SOURCE: IEC TS 61836:2016, 3.3.8, modified – The word "component" has been added to
the term, as well as the note to entry.]
3.3
power conversion equipment
PCE
electrical device converting one form of electrical power to another form of electrical power
with respect to voltage, current, frequency, phase and the number of phases
Note 1 to entry: This note only applies to the French language.
[SOURCE: IEC 62109-1:2010, 3.66 – The definition has been rephrased, and the note has
been replaced.]
3.4
port
particular interface of the PCE with the external electromagnetic environment
Note 1 to entry: See Figure 1 for examples of ports.
DC power port
AC mains power port
Auxiliary DC power port
Auxiliary AC power port
PCE
Signal and control port
Wired network port
Earth port
Enclosure port
IEC
Figure 1 – Example of ports
3.5
enclosure port
physical boundary of the PCE product which electromagnetic fields may radiate through or
impinge on
IEC 62920:2017 © IEC 2017 – 11 –
3.6
AC mains power port
port used to connect to a public low voltage AC mains power distribution network or other low
voltage AC mains installation
3.7
auxiliary AC power port
additional AC power port for purposes other than feeding in AC power
3.8
DC power port
port used to connect a local low voltage DC power generating system
3.9
auxiliary DC power port
additional DC power port for purposes other than supplying DC power for the DC to AC
conversion
3.10
signal and control port
port intended for the interconnection of components of PCE, or between PCE and local
auxiliary equipment, and used in accordance with relevant functional specifications
Note 1 to entry: Examples include RS-232, Universal Serial Bus (USB), High-Definition Multimedia Interface
(HDMI), IEEE standard 1394 (“Fire Wire”) and control pilot.
3.11
wired network port
point to connection for voice, data and signalling transfers intended to interconnect widely
dispersed systems by direct connection to a single-user or multi-user communication network
Note 1 to entry: Example include CATV, PSTN, ISDN, xDSL, LAN and similar networks. These ports can support
screened or unscreened cables and can also carry AC or DC power where this is an integral part of the
telecommunication specification.
3.12
high power electronic equipment and system
one or more power conversion equipment with a combined rated power greater than 75 kVA,
or a system containing such equipment
3.13
low voltage
LV
set of voltage levels used for the distribution of electricity and whose upper limit is generally
accepted to be 1 000 V AC or 1 500 V DC
3.14
high voltage
HV
1) in a general sense, the set of voltage levels in excess of low voltage
2) in a restrictive sense, the set of upper voltage levels used in power system for bulk
transmission of electricity
[SOURCE: IEC 60050-601:1985, 601-01-27]
3.15
medium voltage
MV
any set of voltage levels lying between low and high voltage

– 12 – IEC 62920:2017 © IEC 2017
[SOURCE: IEC 60050-601:1985, 601-01-28, modified – The note has been deleted.]
3.16
small size equipment
equipment including its cables fits in an imaginary cylindrical test volume of 1,2 m in diameter
and 1,5 m in height (to ground plane)
3.17
type test
test of one or more equipment made to a certain design to show that the design meets certain
specifications
3.18
residential environment
environment characterized by the fact that the product is directly (not via external transformer)
connected to a public low voltage AC mains power distribution network or other low voltage
AC mains installation
3.19
non-residential environment
environment characterized by a separate power network, supplied from dedicated power
transformer or a high- or medium-voltage transformer
3.20
PCE-MV
PCE including a medium voltage transformer
3.21
artificial mains network
AMN
network that provides a defined impedance to the equipment under test (EUT) at radio
frequencies, couples the disturbance voltage to the measuring receiver and decouples the
test circuit from the low voltage AC mains supply
3.22
DC artificial network
artificial DC network
DC-AN
artificial network used for defined termination of the EUT’s port under test also providing the
necessary decoupling from conducted disturbances originating from the laboratory low voltage
DC power source
4 Classification of PCE
4.1 Category of environment
In consideration of the intended use of PCE in environments and the definition of environment
in the generic EMC standards, for simplicity only two categories are defined in this document
for both emission and immunity requirements; these are residential and non-residential
environments.
Figure 2 shows examples of installation of PV systems in both environments. The appropriate
category of environment should be confirmed according to the definition of each environment.

IEC 62920:2017 © IEC 2017 – 13 –
HV
Dedicated
Internal
step-down
step-down
HV/MV power
transformers
transformers
transformer
MV
MV/LV power MV/LV power MV/LV power
transformer transformer transformer
LV LV
LV
AC AC
DC DC
AC
AC
DC
DC
AC
PV modules
DC
PV modules
PV modules are
mostly installed
on the roof
Industrial area
PV modules
Domestic area Commercial area
PV modules
Light industrial area
Residential environment Non-residential environment

IEC
Figure 2 – Examples of installation of PV systems
in both environments
4.2 Division into classes
In order to harmonize with basic, generic and product family standards, this
...