IEC 61000-3-2:2018
(Main)Electromagnetic compatibility (EMC) - Part 3-2: Limits - Limits for harmonic current emissions (equipment input current ≤16 A per phase)
Electromagnetic compatibility (EMC) - Part 3-2: Limits - Limits for harmonic current emissions (equipment input current ≤16 A per phase)
IEC 61000-3-2:2018 deals with the limitation of harmonic currents injected into the public supply system. It specifies limits of harmonic components of the input current which can be produced by equipment tested under specified conditions. It is applicable to electrical and electronic equipment having a rated input current up to and including 16 A per phase, and intended to be connected to public low-voltage distribution systems. Arc welding equipment which is not professional equipment, with a rated input current up to and including 16 A per phase, is included in this document. Arc welding equipment intended for professional use, as specified in IEC 60974-1, is excluded from this document and can be subject to installation restrictions as indicated in IEC 61000-3-12. The tests according to this document are type tests. For systems with nominal voltages less than but not equal to 220 V (line-to-neutral), the limits have not yet been considered.
This fifth edition cancels and replaces the fourth edition published in 2014. This edition constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous edition:
a) an update of the emission limits for lighting equipment with a rated power = 25 W to take into account new types of lighting equipment;
b) the addition of a threshold of 5 W under which no emission limits apply to all lighting equipment;
c) the modification of the requirements applying to the dimmers when operating non-incandescent lamps;
d) the addition of test conditions for digital load side transmission control devices;
e) the removal of the use of reference lamps and reference ballasts for the tests of lighting equipment;
f) the simplification and clarification of the terminology used for lighting equipment;
g) the classification of professional luminaires for stage lighting and studios under Class A;
h) a clarification about the classification of emergency lighting equipment;
i) a clarification for lighting equipment including one control module with an active input power = 2 W;
j) an update of the test conditions for television receivers;
k) an update of the test conditions for induction hobs, taking also into account the other types of cooking appliances;
l) for consistency with IEC 61000-3-12, a change of the scope of IEC 61000-3-2 from equipment with an input current = 16 A to equipment with a rated input current = 16 A.
Compatibilité électromagnétique (CEM) - Partie 3-2 : Limites - Limites pour les émissions de courant harmonique (courant appelé par les appareils ≤ 16 A par phase)
L’IEC 61000-3-2:2018 traite de la limitation des courants harmoniques injectés dans le réseau public d’alimentation. Elle définit les limites des harmoniques du courant d’entrée qui peuvent être produits par les matériels soumis à l’essai dans des conditions spécifiées. La présente partie de l’IEC 61000 est applicable aux appareils électriques et électroniques ayant un courant d’entrée assigné dont la valeur est inférieure ou égale à 16 A par phase et qui sont destinés à être raccordés à des réseaux publics de distribution à basse tension. Le matériel de soudage à l'arc qui n’est pas du matériel professionnel, dont le courant d’entrée assigné est inférieur ou égal à 16 A par phase, relève du présent document. Le matériel de soudage à l'arc destiné à un usage professionnel, tel que spécifié dans l’IEC 60974-1, est exclu du domaine d'application du présent document et peut être sujet à des restrictions d'installation comme indiqué dans l'IEC 61000-3-12. Les essais effectués conformément au présent document sont des essais de type. Les limites applicables aux réseaux dont la tension nominale est strictement inférieure à 220 V (entre phase et neutre) n'ont pas encore été envisagées.
Cette cinquième édition annule et remplace la quatrième édition parue en 2014. Cette édition constitute une révision technique.
Cette édition inclut les modifications techniques majeures suivantes par rapport à l'édition précédente:
a) une mise à jour des limites d’émission pour les appareils d'éclairage ayant une puissance assignée ≤ 25 W afin de tenir compte des nouveaux types d’appareils d'éclairage;
b) l’ajout d'un seuil de 5 W en dessous duquel aucune limite d’émission ne s’applique à l’ensemble des appareils d'éclairage;
c) la modification des exigences qui s’appliquent aux variateurs de lumière lorsqu'ils font fonctionner des lampes qui ne sont pas à incandescence;
d) l’ajout de conditions d'essai applicables aux dispositifs de commande d'éclairage par transmission numérique côté charge;
e) la suppression de l'emploi de lampes de référence et de ballasts de référence pour les essais des appareils d'éclairage;
f) la simplification et la clarification de la terminologie employée pour les appareils d'éclairage;
g) la classification en classe A des luminaires professionnels pour l'éclairage des scènes de théâtre et pour les studios;
h) une clarification de la classification des appareils d'éclairage de secours;
i) une clarification pour les appareils d'éclairage comportant un module de commande ayant une puissance active d’entrée ≤ 2 W;
j) une mise à jour des conditions d’essai des récepteurs de télévision;
k) une mise à jour des conditions d’essai des tables de cuisson à induction, tenant compte également des autres types d’appareils de cuisson;
l) en cohérence avec l’IEC 61000-3-12, une modification du domaine d’application de l’IEC 61000-3-2, qui couvrait les appareils ayant un courant d’entrée ≤ 16 A, et qui couvre maintenant les appareils ayant un courant d’entrée assigné ≤ 16 A.
Mots-clés: courants harmoniques
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Electromagnetic compatibility (EMC) –
Part 3-2: Limits – Limits for harmonic current emissions (equipment input
current ≤ 16 A per phase)
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Electromagnetic compatibility (EMC) –
Part 3-2: Limits – Limits for harmonic current emissions (equipment input
current ≤ 16 A per phase)
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 33.100.10 ISBN 978-2-8322-5332-8
– 2 – IEC 61000-3-2:2018 RLV © IEC 2018
CONTENTS
FOREWORD . 4
INTRODUCTION . 7
1 Scope . 8
2 Normative references . 8
3 Terms and definitions . 9
4 General . 14
5 Classification of equipment . 14
5.1 General . 14
5.2 Description of lighting equipment . 15
6 General requirements . 16
6.1 General . 16
6.2 Control methods . 16
6.3 Harmonic current measurement . 17
6.3.1 Test configuration . 17
6.3.2 Measurement procedure . 17
6.3.3 General requirements . 18
6.3.4 Test observation period . 20
6.4 Equipment in a rack or case . 20
7 Harmonic current limits . 20
7.1 General . 20
7.2 Limits for Class A equipment. 21
7.3 Limits for Class B equipment. 22
7.4 Limits for Class C equipment . 22
7.4.1 General . 22
7.4.2 Rated power > 25 W . 22
7.4.3 Rated power ≥ 5 W and ≤ 25 W . 23
7.5 Limits for Class D equipment . 24
Annex A (normative) Measurement circuit and supply source . 26
A.1 Test circuit . 26
A.2 Supply source . 26
Annex B (normative) Requirements for measurement equipment .
Annex B (normative) Type test conditions . 30
B.1 General . 30
B.2 Test conditions for television receivers (TV) . 30
B.2.1 General conditions requirements . 30
B.2.2 Conditions for Measurement conditions . 30
B.2.3 Test report . 31
B.3 Test conditions for audio amplifiers . 31
B.3.1 Conditions . 31
B.3.2 Input signals and loads . 32
B.4 Test conditions for video-cassette recorders . 32
B.5 Test conditions for lighting equipment . 32
B.5.1 General conditions . 32
B.5.2 Lamps . 32
B.5.3 Luminaires . 33
Ballasts and step-down converters .
B.5.4 Lighting control gear . 33
B.5.5 DLT control devices . 34
B.6 Test conditions for independent and built-in incandescent lamp phase
control dimmers for lighting equipment . 34
B.7 Test conditions for vacuum cleaners . 34
B.8 Test conditions for washing machines . 35
B.9 Test conditions for microwave ovens . 35
B.10 Test conditions for information technology equipment (ITE) . 35
B.10.1 General conditions . 35
B.10.2 Optional conditions for measuring emissions of IT equipment with
external power supplies or battery chargers . 36
B.11 Test conditions for induction hobs cooking appliances . 37
B.11.1 Induction hobs and hotplates . 37
B.11.2 Hobs and hotplates other than induction cooking appliances . 37
B.12 Test conditions for air conditioners . 38
B.13 Test conditions for kitchen machines as defined in IEC 60335-2-14 . 38
B.14 Test conditions for arc welding equipment which is not professional
equipment . 38
B.15 Test conditions for high pressure cleaners which are not professional
equipment . 39
B.16 Test conditions for refrigerators and freezers . 39
B.16.1 General . 39
B.16.2 Refrigerators and freezers with VSD . 39
B.16.3 Refrigerators and freezers without VSD . 40
Bibliography . 41
Figure 1 – Flowchart for determining conformity . 21
Figure 2 – Illustration of the relative phase angle and current parameters
described in 7.4.3 . 23
Figure A.1 – Measurement circuit for single-phase equipment. 27
Figure A.2 – Measurement circuit for three-phase equipment . 28
Table 1 – Limits for Class A equipment . 24
Table 2 – Limits for Class C equipment . 25
Table 3 – Limits for Class D equipment . 25
Table 4 – Test observation period . 25
Table B.1 – Conventional load for arc welding equipment tests . 38
– 4 – IEC 61000-3-2:2018 RLV © IEC 2018
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
ELECTROMAGNETIC COMPATIBILITY (EMC) –
Part 3-2: Limits – Limits for harmonic current emissions
(equipment input current ≤ 16 A per phase)
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
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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 Publicatio
...
IEC 61000-3-2 ®
Edition 5.1 2020-07
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Electromagnetic compatibility (EMC) –
Part 3-2: Limits – Limits for harmonic current emissions (equipment input
current ≤16 A per phase)
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Electromagnetic compatibility (EMC) –
Part 3-2: Limits – Limits for harmonic current emissions (equipment input
current ≤16 A per phase)
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 33.100.10 ISBN 978-2-8322-8679-1
IEC 61000-3-2 ®
Edition 5.1 2020-07
REDLINE VERSION
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Electromagnetic compatibility (EMC) –
Part 3-2: Limits – Limits for harmonic current emissions (equipment input
current ≤16 A per phase)
© IEC 2021
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
IEC 61000-3-2
Edition 5.0 2018-01
Amendment 1 2020-07
ELECTROMAGNETIC COMPATIBILITY (EMC) –
Part 3-2: Limits – Limits for harmonic current emissions
(equipment input current ≤16 A per phase)
INTERPRETATION SHEET 1
This interpretation sheet has been prepared by subcommittee 77A: EMC – Low frequency
phenomena, of IEC technical committee 77: Electromagnetic compatibility.
The text of this interpretation sheet is based on the following documents:
DISH Report on voting
77A/1106/DISH 77A/1114/RVDISH
Full information on the voting for the approval of this interpretation sheet can be found in the
report on voting indicated in the above table.
IMPORTANT – The "colour inside" logo on the cover page of this document 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.
___________
ICS 33.100.10
– 2 – IEC 61000-3-2:2018/AMD1:2020/ISH1:2021
© IEC 2021
Interpretation of the second set of requirements applicable to Class C equipment with a
rated power ≥ 5 W and ≤ 25 W according to 7.4.3 of IEC 61000-3-2:2018 and
Introduction
The second set of requirements of 7.4.3 of IEC 61000-3-2:2018 and
that it reaches the 5 % current threshold before or at 60°, has its peak value before or at 65°
and does not fall below the 5 % current threshold before 90°, referenced to any zero crossing
of the fundamental supply voltage” and that “Components of current with frequencies above
9 kHz shall not influence this evaluation (a filter similar to the one described in 5.3 of
IEC 61000-4-7:2002 and IEC 61000-4-7:2002/AMD1:2008 may be used);”
Testing laboratories and Class C equipment manufacturers concluded that several harmonics
test systems with IEC 61000-4-7 compliant measurement equipment do not completely filter out
the components of current with frequencies above 9 kHz, thus resulting in a non-accurate
evaluation of the phase angles (see Figure 1). One of the reasons why filters are not used is
that they can alter the phase angle itself by introducing a phase delay.
Question
When applying the second set of requirements in 7.4.3, what method shall be used to measure
the phase angle in order to avoid the influence of components of current with frequencies above
9 kHz?
Interpretation
Given the issues reported by test laboratories, if the phase angle is measured with an
IEC 61000-4-7 test system that doesn’t remove the components above 9 kHz correctly, the
measurements with a digital oscilloscope shall prevail, where the components above 9 kHz
have been removed without affecting the phase angle at which the peak current occurs.
NOTE This can be achieved for example by using a synchronous averaging mode of the oscilloscope (see Figure 2).
© IEC 2021
Annex
Figure 1 and Figure 2 show an incorrect and the correct evaluation of the phase angle.
Figure 1 – Incorrect measurement
Figure 2 – Correct measurement with averaged waveform
– 2 – IEC 61000-3-2:2018+AMD1:2020 CSV
© IEC 2020
CONTENTS
FOREWORD . 4
INTRODUCTION . 6
1 Scope . 7
2 Normative references . 7
3 Terms and definitions . 8
4 General . 13
5 Classification of equipment . 13
5.1 General . 13
5.2 Description of lighting equipment . 14
5.3 External power supplies . 14
6 General requirements . 15
6.1 General . 15
6.2 Control methods . 15
6.3 Harmonic current measurement . 17
6.3.1 Test configuration . 17
6.3.2 Measurement procedure . 17
6.3.3 General requirements . 18
6.3.4 Test observation period . 19
6.4 Equipment in a rack or case . 19
6.5 Multifunction equipment . 20
7 Harmonic current limits . 20
7.1 General . 20
7.2 Limits for Class A equipment. 21
7.3 Limits for Class B equipment. 22
7.4 Limits for Class C equipment . 22
7.4.1 General . 22
7.4.2 Rated power > 25 W . 22
7.4.3 Rated power ≥ 5 W and ≤ 25 W . 23
7.5 Limits for Class D equipment . 24
8 Compliance with this document . 25
Annex A (normative) Measurement circuit and supply source . 26
A.1 Test circuit . 26
A.2 Supply source . 26
Annex B (normative) Type test conditions . 29
B.1 General . 29
B.2 Test conditions for Television receivers (TV) . 29
B.2.1 General requirements . 29
B.2.2 Measurement conditions . 29
B.2.3 Test report . 30
B.3 Test conditions for Audio amplifiers . 30
B.3.1 Conditions . 30
B.3.2 Input signals and loads . 30
B.4 Test conditions for Video-cassette recorders. 31
B.5 Test conditions for Lighting equipment . 31
B.5.1 General conditions . 31
© IEC 2020
B.5.2 Lamps Light sources . 31
B.5.3 Luminaires . 31
B.5.4 Lighting control gear . 32
B.5.5 DLT control devices . 33
B.6 Test conditions for Independent phase control dimmers for lighting
equipment . 33
B.7 Test conditions for Vacuum cleaners . 33
B.8 Test conditions for Washing machines . 34
B.9 Test conditions for Microwave ovens . 34
B.10 Test conditions for Information technology equipment (ITE) . 34
B.10.1 General conditions . 34
B.10.2 Optional conditions for measuring emissions of IT equipment with
external power supplies or battery chargers . 35
B.11 Test conditions for Cooking appliances . 35
B.11.1 Induction hobs and hotplates . 35
B.11.2 Hobs and hotplates other than induction cooking appliances . 36
B.12 Test conditions for Air conditioners . 36
B.13 Test conditions for Kitchen machines as def
...
IEC 61000-3-2 ®
Edition 5.0 2018-01
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Electromagnetic compatibility (EMC) –
Part 3-2: Limits – Limits for harmonic current emissions (equipment input
current ≤ 16 A per phase)
Compatibilité électromagnétique (CEM) –
Partie 3-2: Limites – Limites pour les émissions de courant harmonique
(courant appelé par les appareils ≤ 16 A par phase)
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International Standards for all electrical, electronic and related technologies.
About IEC publications
The technical content of IEC publications is kept under constant review by the IEC. Please make sure that you have the
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IEC 61000-3-2 ®
Edition 5.0 2018-01
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Electromagnetic compatibility (EMC) –
Part 3-2: Limits – Limits for harmonic current emissions (equipment input
current ≤ 16 A per phase)
Compatibilité électromagnétique (CEM) –
Partie 3-2: Limites – Limites pour les émissions de courant harmonique (courant
appelé par les appareils ≤ 16 A par phase)
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 33.100.10 ISBN 978-2-8322-5250-5
– 2 – IEC 61000-3-2:2018 © IEC 2018
CONTENTS
FOREWORD . 4
INTRODUCTION . 6
1 Scope . 7
2 Normative references . 7
3 Terms and definitions . 8
4 General . 11
5 Classification of equipment . 12
5.1 General . 12
5.2 Description of lighting equipment . 12
6 General requirements . 13
6.1 General . 13
6.2 Control methods . 13
6.3 Harmonic current measurement . 14
6.3.1 Test configuration . 14
6.3.2 Measurement procedure . 15
6.3.3 General requirements . 15
6.3.4 Test observation period . 17
6.4 Equipment in a rack or case . 17
7 Harmonic current limits . 17
7.1 General . 17
7.2 Limits for Class A equipment. 18
7.3 Limits for Class B equipment. 19
7.4 Limits for Class C equipment . 19
7.4.1 General . 19
7.4.2 Rated power > 25 W . 19
7.4.3 Rated power ≥ 5 W and ≤ 25 W . 20
7.5 Limits for Class D equipment . 21
Annex A (normative) Measurement circuit and supply source . 23
A.1 Test circuit . 23
A.2 Supply source . 23
Annex B (normative) Type test conditions . 26
B.1 General . 26
B.2 Test conditions for television receivers (TV) . 26
B.2.1 General requirements . 26
B.2.2 Measurement conditions . 26
B.2.3 Test report . 27
B.3 Test conditions for audio amplifiers . 27
B.3.1 Conditions . 27
B.3.2 Input signals and loads . 27
B.4 Test conditions for video-cassette recorders . 28
B.5 Test conditions for lighting equipment . 28
B.5.1 General conditions . 28
B.5.2 Lamps . 28
B.5.3 Luminaires . 28
B.5.4 Lighting control gear . 28
B.5.5 DLT control devices . 29
B.6 Test conditions for independent phase control dimmers for lighting
equipment . 29
B.7 Test conditions for vacuum cleaners . 29
B.8 Test conditions for washing machines . 29
B.9 Test conditions for microwave ovens . 30
B.10 Test conditions for information technology equipment (ITE) . 30
B.10.1 General conditions . 30
B.10.2 Optional conditions for measuring emissions of IT equipment with
external power supplies or battery chargers . 31
B.11 Test conditions for cooking appliances . 31
B.11.1 Induction hobs and hotplates . 31
B.11.2 Hobs and hotplates other than induction cooking appliances . 32
B.12 Test conditions for air conditioners . 32
B.13 Test conditions for kitchen machines as defined in IEC 60335-2-14 . 32
B.14 Test conditions for arc welding equipment which is not professional
equipment . 32
B.15 Test conditions for high pressure cleaners which are not professional
equipment . 33
B.16 Test conditions for refrigerators and freezers . 33
B.16.1 General . 33
B.16.2 Refrigerators and freezers with VSD . 33
B.16.3 Refrigerators and freez
...
IEC 61000-3-2 ®
Edition 5.1 2020-07
CONSOLIDATED VERSION
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Electromagnetic compatibility (EMC) –
Part 3-2: Limits – Limits for harmonic current emissions (equipment input
current ≤16 A per phase)
Compatibilité électromagnétique (CEM) –
Partie 3-2: Limites – Limites pour les émissions de courant harmonique (courant
appelé par les appareils ≤16 A par phase)
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form
or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from
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About the IEC
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IEC 61000-3-2 ®
Edition 5.1 2020-07
CONSOLIDATED VERSION
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Electromagnetic compatibility (EMC) –
Part 3-2: Limits – Limits for harmonic current emissions (equipment input
current ≤16 A per phase)
Compatibilité électromagnétique (CEM) –
Partie 3-2: Limites – Limites pour les émissions de courant harmonique (courant
appelé par les appareils ≤16 A par phase)
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 33.100.10 ISBN 978-2-8322-4755-6
IEC 61000-3-2 ®
Edition 5.1 2020-07
CONSOLIDATED VERSION
REDLINE VERSION
VERSION REDLINE
colour
inside
Electromagnetic compatibility (EMC) –
Part 3-2: Limits – Limits for harmonic current emissions (equipment input
current ≤16 A per phase)
Compatibilité électromagnétique (CEM) –
Partie 3-2: Limites – Limites pour les émissions de courant harmonique (courant
appelé par les appareils ≤16 A par phase)
© IEC 2021
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
IEC 61000-3-2
Edition 5.0 2018-01
Amendment 1 2020-07
ELECTROMAGNETIC COMPATIBILITY (EMC) –
Part 3-2: Limits – Limits for harmonic current emissions
(equipment input current ≤16 A per phase)
INTERPRETATION SHEET 1
This interpretation sheet has been prepared by subcommittee 77A: EMC – Low frequency
phenomena, of IEC technical committee 77: Electromagnetic compatibility.
The text of this interpretation sheet is based on the following documents:
DISH Report on voting
77A/1106/DISH 77A/1114/RVDISH
Full information on the voting for the approval of this interpretation sheet can be found in the
report on voting indicated in the above table.
IMPORTANT – The "colour inside" logo on the cover page of this document 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.
___________
ICS 33.100.10
– 2 – IEC 61000-3-2:2018/AMD1:2020/ISH1:2021
© IEC 2021
Interpretation of the second set of requirements applicable to Class C equipment with a
rated power ≥ 5 W and ≤ 25 W according to 7.4.3 of IEC 61000-3-2:2018 and
Introduction
The second set of requirements of 7.4.3 of IEC 61000-3-2:2018 and
that it reaches the 5 % current threshold before or at 60°, has its peak value before or at 65°
and does not fall below the 5 % current threshold before 90°, referenced to any zero crossing
of the fundamental supply voltage” and that “Components of current with frequencies above
9 kHz shall not influence this evaluation (a filter similar to the one described in 5.3 of
IEC 61000-4-7:2002 and IEC 61000-4-7:2002/AMD1:2008 may be used);”
Testing laboratories and Class C equipment manufacturers concluded that several harmonics
test systems with IEC 61000-4-7 compliant measurement equipment do not completely filter out
the components of current with frequencies above 9 kHz, thus resulting in a non-accurate
evaluation of the phase angles (see Figure 1). One of the reasons why filters are not used is
that they can alter the phase angle itself by introducing a phase delay.
Question
When applying the second set of requirements in 7.4.3, what method shall be used to measure
the phase angle in order to avoid the influence of components of current with frequencies above
9 kHz?
Interpretation
Given the issues reported by test laboratories, if the phase angle is measured with an
IEC 61000-4-7 test system that doesn’t remove the components above 9 kHz correctly, the
measurements with a digital oscilloscope shall prevail, where the components above 9 kHz
have been removed without affecting the phase angle at which the peak current occurs.
NOTE This can be achieved for example by using a synchronous averaging mode of the oscilloscope (see Figure 2).
© IEC 2021
Annex
Figure 1 and Figure 2 show an incorrect and the correct evaluation of the phase angle.
Figure 1 – Incorrect measurement
Figure 2 – Correct measurement with averaged waveform
– 2 – IEC 61000-3-2:2018+AMD1:2020 CSV
© IEC 2020
CONTENTS
FOREWORD . 4
INTRODUCTION . 6
1 Scope . 7
2 Normative references . 7
3 Terms and definitions . 8
4 General . 13
5 Classification of equipment . 13
5.1 General . 13
5.2 Description of lighting equipment . 14
5.3 External power supplies . 14
6 General requirements . 15
6.1 General . 15
6.2 Control methods . 15
6.3 Harmonic current measurement . 17
6.3.1 Test configuration . 17
6.3.2 Measurement procedure . 17
6.3.3 General requirements . 18
6.3.4 Test observation period . 19
6.4 Equipment in a rack or case . 19
6.5 Multifunction equipment . 20
7 Harmonic current limits . 20
7.1 General . 20
7.2 Limits for Class A equipment. 22
7.3 Limits for Class B equipment. 23
7.4 Limits for Class C equipment . 23
7.4.1 General . 23
7.4.2 Rated power > 25 W . 23
7.4.3 Rated power ≥ 5 W and ≤ 25 W . 24
7.5 Limits for Class D equipment . 25
8 Compliance with this document . 26
Annex A (normative) Measurement circuit and supply source . 27
A.1 Test circuit . 27
A.2 Supply source . 27
Annex B (normative) Type test conditions . 30
B.1 General . 30
B.2 Test conditions for Television receivers (TV) . 30
B.2.1 General requirements . 30
B.2.2 Measurement conditions .
...
IEC 61000-3-2 ®
Edition 5.2 2024-03
CONSOLIDATED VERSION
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Electromagnetic compatibility (EMC) –
Part 3-2: Limits – Limits for harmonic current emissions (equipment input
current ≤16 A per phase)
Compatibilité électromagnétique (CEM) –
Partie 3-2 : Limites – Limites pour les émissions de courant harmonique
(courant appelé par les appareils ≤16 A par phase)
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form
or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from
either IEC or IEC's member National Committee in the country of the requester. If you have any questions about IEC
copyright or have an enquiry about obtaining additional rights to this publication, please contact the address below or
your local IEC member National Committee for further information.
Droits de reproduction réservés. Sauf indication contraire, aucune partie de cette publication ne peut être reproduite ni
utilisée sous quelque forme que ce soit et par aucun procédé, électronique ou mécanique, y compris la photocopie et
les microfilms, sans l'accord écrit de l'IEC ou du Comité national de l'IEC du pays du demandeur. Si vous avez des
questions sur le copyright de l'IEC ou si vous désirez obtenir des droits supplémentaires sur cette publication, utilisez
les coordonnées ci-après ou contactez le Comité national de l'IEC de votre pays de résidence.
IEC Secretariat Tel.: +41 22 919 02 11
3, rue de Varembé info@iec.ch
CH-1211 Geneva 20 www.iec.ch
Switzerland
About the IEC
The International Electrotechnical Commission (IEC) is the leading global organization that prepares and publishes
International Standards for all electrical, electronic and related technologies.
About IEC publications
The technical content of IEC publications is kept under constant review by the IEC. Please make sure that you have the
latest edition, a corrigendum or an amendment might have been published.
IEC publications search - webstore.iec.ch/advsearchform IEC Products & Services Portal - products.iec.ch
The advanced search enables to find IEC publications by a Discover our powerful search engine and read freely all the
variety of criteria (reference number, text, technical publications previews, graphical symbols and the glossary.
committee, …). It also gives information on projects, replaced With a subscription you will always have access to up to date
and withdrawn publications. content tailored to your needs.
IEC Just Published - webstore.iec.ch/justpublished
Electropedia - www.electropedia.org
Stay up to date on all new IEC publications. Just Published
The world's leading online dictionary on electrotechnology,
details all new publications released. Available online and once
containing more than 22 500 terminological entries in English
a month by email.
and French, with equivalent terms in 25 additional languages.
Also known as the International Electrotechnical Vocabulary
IEC Customer Service Centre - webstore.iec.ch/csc
(IEV) online.
If you wish to give us your feedback on this publication or need
further assistance, please contact the Customer Service
Centre: sales@iec.ch.
A propos de l'IEC
La Commission Electrotechnique Internationale (IEC) est la première organisation mondiale qui élabore et publie des
Normes internationales pour tout ce qui a trait à l'électricité, à l'électronique et aux technologies apparentées.
A propos des publications IEC
Le contenu technique des publications IEC est constamment revu. Veuillez vous assurer que vous possédez l’édition la
plus récente, un corrigendum ou amendement peut avoir été publié.
Recherche de publications IEC - IEC Products & Services Portal - products.iec.ch
webstore.iec.ch/advsearchform Découvrez notre puissant moteur de recherche et consultez
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comité d’études, …). Elle donne aussi des informations sur les toujours accès à un contenu à jour adapté à vos besoins.
projets et les publications remplacées ou retirées.
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IEC Just Published - webstore.iec.ch/justpublished
Le premier dictionnaire d'électrotechnologie en ligne au monde,
Restez informé sur les nouvelles publications IEC. Just
avec plus de 22 500 articles terminologiques en anglais et en
Published détaille les nouvelles publications parues.
français, ainsi que les termes équivalents dans 25 langues
Disponible en ligne et une fois par mois par email.
additionnelles. Egalement appelé Vocabulaire
Electrotechnique International (IEV) en ligne.
Service Clients - webstore.iec.ch/csc
Si vous désirez nous donner des commentaires sur cette
publication ou si vous avez des questions contactez-nous:
sales@iec.ch.
IEC 61000-3-2 ®
Edition 5.2 2024-03
CONSOLIDATED VERSION
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Electromagnetic compatibility (EMC) –
Part 3-2: Limits – Limits for harmonic current emissions (equipment input
current ≤16 A per phase)
Compatibilité électromagnétique (CEM) –
Partie 3-2 : Limites – Limites pour les émissions de courant harmonique
(courant appelé par les appareils ≤16 A par phase)
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 33.100.10 ISBN 978-2-8322-8449-0
IEC 61000-3-2 ®
Edition 5.2 2024-03
CONSOLIDATED VERSION
REDLINE VERSION
VERSION REDLINE
colour
inside
Electromagnetic compatibility (EMC) –
Part 3-2: Limits – Limits for harmonic current emissions (equipment input
current ≤16 A per phase)
Compatibilité électromagnétique (CEM) –
Partie 3-2 : Limites – Limites pour les émissions de courant harmonique
(courant appelé par les appareils ≤16 A par phase)
© IEC 2021
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
IEC 61000-3-2
Edition 5.0 2018-01
Amendment 1 2020-07
ELECTROMAGNETIC COMPATIBILITY (EMC) –
Part 3-2: Limits – Limits for harmonic current emissions
(equipment input current ≤16 A per phase)
INTERPRETATION SHEET 1
This interpretation sheet has been prepared by subcommittee 77A: EMC – Low frequency
phenomena, of IEC technical committee 77: Electromagnetic compatibility.
The text of this interpretation sheet is based on the following documents:
DISH Report on voting
77A/1106/DISH 77A/1114/RVDISH
Full information on the voting for the approval of this interpretation sheet can be found in the
report on voting indicated in the above table.
IMPORTANT – The "colour inside" logo on the cover page of this document 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.
___________
ICS 33.100.10
– 2 – IEC 61000-3-2:2018/AMD1:2020/ISH1:2021
© IEC 2021
Interpretation of the second set of requirements applicable to Class C equipment with a
rated power ≥ 5 W and ≤ 25 W according to 7.4.3 of IEC 61000-3-2:2018 and
Introduction
The second set of requirements of 7.4.3 of IEC 61000-3-2:2018 and
that it reaches the 5 % current threshold before or at 60°, has its peak value before or at 65°
and does not fall below the 5 % current threshold before 90°, referenced to any zero crossing
of the fundamental supply voltage” and that “Components of current with frequencies above
9 kHz shall not influence this evaluation (a filter similar to the one described in 5.3 of
IEC 61000-4-7:2002 and IEC 61000-4-7:2002/AMD1:2008 may be used);”
Testing laboratories and Class C equipment manufacturers concluded that several harmonics
test systems with IEC 61000-4-7 compliant measurement equipment do not completely filter out
the components of current with frequencies above 9 kHz, thus resulting in a non-accurate
evaluation of the phase angles (see Figure 1). One of the reasons why filters are not used is
that they can alter the phase angle itself by introducing a phase delay.
Question
When applying the second set of requirements in 7.4.3, what method shall be used to measure
the phase angle in order to avoid the influence of components of current with frequencies above
9 kHz?
Interpretation
Given the issues reported by test laboratories, if the phase angle is measured with an
IEC 61000-4-7 test system that doesn’t remove the components above 9 kHz correctly, the
measurements with a digital oscilloscope shall prevail, where the components above 9 kHz
have been removed without affecting the phase angle at which the peak current occurs.
NOTE This can be achieved for example by using a synchronous averaging mode of the oscilloscope (see Figure 2).
© IEC 2021
Annex
Figure 1 and Figure 2 show an incorrect and the correct evaluation of the phase angle.
Figure 1 – Incorrect measurement
Figure 2 – Correct measurement with averaged waveform
REDLINE VERSION – 2 – IEC 61000-3-2:2018+AMD1:2020
+AMD2:2024 CSV © IEC 2024
CONTENTS
FOREWORD . 5
INTRODUCTION . 7
INTRODUCTION to Amendment 2 . 8
1 Scope . 9
2 Normative references . 9
3 Terms and definitions . 10
4 General . 15
5 Classification of equipment . 16
5.1 General . 16
5.2 Description of lighting equipment . 17
5.3 External power supplies . 17
6 General requirements . 17
6.1 General . 17
6.2 Control methods . 18
6.3 Harmonic current measurement . 19
6.3.1 Test configuration . 19
6.3.2 Measurement procedure . 20
6.3.3 General requirements and recommendations . 21
6.3.4 Test observation period . 22
6.4 Equipment in a rack or case . 22
6.5 Multifunction equipment . 23
7 Harmonic current limits . 23
7.1 General . 23
7.2 Limits for Class A equipment. 24
7.3 Limits for Class B equipment. 25
7.4 Limits for Class C equipment . 25
7.4.1 General . 25
7.4.2 Rated power > 25 W . 25
7.4.3 Rated power ≥ 5 W and ≤ 25 W . 26
7.5 Limits for Class D equipment . 27
8 Compliance with this document . 28
8.1 Use of test methods . 28
8.2 Decision rules and measurement uncertainty . 28
8.2.1 Measurements with an instrument in accordance with IEC 61000-4-7,
class I . 28
8.2.2 Measurements with an instrument in accordance with IEC 61000-4-7,
class II .
...
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