Electromagnetic compatibility (EMC) - Part 3-2: Limits - Limits for harmonic current emissions (equipment input current ≤16 A per phase)

IEC 61000-3-2:2018 is also available as IEC 61000-3-2:2018 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition.
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)

IEC 61000-3-2:2018 est disponible sous forme de IEC 61000-3-2:2018 RLV qui contient la Norme internationale et sa version Redline, illustrant les modifications du contenu technique depuis l'édition précédente.
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

General Information

Status
Published
Publication Date
25-Jan-2018
Current Stage
PPUB - Publication issued
Completion Date
26-Jan-2018
Ref Project

Buy Standard

Standard
IEC 61000-3-2:2018 - Electromagnetic compatibility (EMC) - Part 3-2: Limits - Limits for harmonic current emissions (equipment input current ≤16 A per phase)
English and French language
73 pages
sale 15% off
Preview
sale 15% off
Preview

Standards Content (sample)

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)
IEC 61000-3-2:2018-01(en-fr)
---------------------- Page: 1 ----------------------
THIS PUBLICATION IS COPYRIGHT PROTECTED
Copyright © 2018 IEC, Geneva, Switzerland

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 Central Office 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 corrigenda or an amendment might have been published.
IEC Catalogue - webstore.iec.ch/catalogue Electropedia - www.electropedia.org

The stand-alone application for consulting the entire The world's leading online dictionary of electronic and

bibliographical information on IEC International Standards, electrical terms containing 21 000 terms and definitions in

Technical Specifications, Technical Reports and other English and French, with equivalent terms in 16 additional

documents. Available for PC, Mac OS, Android Tablets and languages. Also known as the International Electrotechnical

iPad. Vocabulary (IEV) online.

IEC publications search - webstore.iec.ch/advsearchform IEC Glossary - std.iec.ch/glossary

The advanced search enables to find IEC publications by a 67 000 electrotechnical terminology entries in English and

variety of criteria (reference number, text, technical French extracted from the Terms and Definitions clause of

committee,…). It also gives information on projects, replaced IEC publications issued since 2002. Some entries have been

and withdrawn publications. collected from earlier publications of IEC TC 37, 77, 86 and

CISPR.
IEC Just Published - webstore.iec.ch/justpublished

Stay up to date on all new IEC publications. Just Published IEC Customer Service Centre - webstore.iec.ch/csc

details all new publications released. Available online and If you wish to give us your feedback on this publication or

also once a month by email. 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.
Catalogue IEC - webstore.iec.ch/catalogue Electropedia - www.electropedia.org
Application autonome pour consulter tous les renseignements
Le premier dictionnaire en ligne de termes électroniques et
bibliographiques sur les Normes internationales,
électriques. Il contient 21 000 termes et définitions en anglais
Spécifications techniques, Rapports techniques et autres
et en français, ainsi que les termes équivalents dans 16
documents de l'IEC. Disponible pour PC, Mac OS, tablettes
langues additionnelles. Egalement appelé Vocabulaire
Android et iPad.
Electrotechnique International (IEV) en ligne.
Recherche de publications IEC -
Glossaire IEC - std.iec.ch/glossary
webstore.iec.ch/advsearchform
67 000 entrées terminologiques électrotechniques, en anglais

La recherche avancée permet de trouver des publications IEC et en français, extraites des articles Termes et Définitions des

en utilisant différents critères (numéro de référence, texte, publications IEC parues depuis 2002. Plus certaines entrées

comité d’études,…). Elle donne aussi des informations sur les antérieures extraites des publications des CE 37, 77, 86 et

projets et les publications remplacées ou retirées. CISPR de l'IEC.

IEC Just Published - webstore.iec.ch/justpublished Service Clients - webstore.iec.ch/csc

Restez informé sur les nouvelles publications IEC. Just Si vous désirez nous donner des commentaires sur cette

Published détaille les nouvelles publications parues. publication ou si vous avez des questions contactez-nous:

Disponible en ligne et aussi une fois par mois par email. sales@iec.ch.
---------------------- Page: 2 ----------------------
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

Warning! Make sure that you obtained this publication from an authorized distributor.

Attention! Veuillez vous assurer que vous avez obtenu cette publication via un distributeur agréé.

® Registered trademark of the International Electrotechnical Commission
Marque déposée de la Commission Electrotechnique Internationale
---------------------- Page: 3 ----------------------
– 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

---------------------- Page: 4 ----------------------
IEC 61000-3-2:2018 © IEC 2018 – 3 –

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 freezers without VSD ......................................................... 34

Bibliography .......................................................................................................................... 35

Figure 1 – Flowchart for determining conformity .................................................................... 18

Figure 2 – Illustration of the relative phase angle and current parameters described in

7.4.3 ..................................................................................................................................... 20

Figure A.1 – Measurement circuit for single-phase equipment............................................... 24

Figure A.2 – Measurement circuit for three-phase equipment ................................................ 25

Table 1 – Limits for Class A equipment ................................................................................. 21

Table 2 – Limits for Class C equipment .............................................................................. 21

Table 3 – Limits for Class D equipment ................................................................................. 22

Table 4 – Test observation period ......................................................................................... 22

Table B.1 – Conventional load for arc welding equipment tests ............................................. 33

---------------------- Page: 5 ----------------------
– 4 – IEC 61000-3-2:2018 © 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

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 61000-3-2 has been prepared by sub-committee 77A: EMC – Low

frequency phenomena, of IEC technical committee 77: Electromagnetic compatibility.

It forms part 3-2 of the IEC 61000 series. It has the status of a product family standard.

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;
---------------------- Page: 6 ----------------------
IEC 61000-3-2:2018 © IEC 2018 – 5 –
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.

The text of this standard is based on the following documents:
FDIS Report on voting
77A/986/FDIS 77A/990/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 in the IEC 61000 series, published under the general title, Electromagnetic

compatibility (EMC), can be found on the IEC website.

The committee has decided that the contents of this publication will remain unchanged until

the stability 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.

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.
---------------------- Page: 7 ----------------------
– 6 – IEC 61000-3-2:2018 © IEC 2018
INTRODUCTION
IEC 61000 is published in separate parts, according to the following structure:
Part 1: General
General considerations (introduction, fundamental principles)
Definitions, terminology
Part 2: Environment
Description levels
Classification of the environment
Compatibility levels
Part 3: Limits
Emission limits

Immunity limits (in so far as they do not fall under the responsibility of the product

committees)
Part 4: Testing and measurement techniques
Measurement techniques
Testing techniques
Part 5: Installation and mitigation guidelines
Installation guidelines
Mitigation methods and devices
Part 6: Generic standards
Part 9: Miscellaneous

Each part is further subdivided into several parts, published either as international standards

or as technical specifications or technical reports, some of which have already been published

as sections. Others will be published with the part number followed by a dash and a second

number identifying the subdivision (example: IEC 61000-6-1).
---------------------- Page: 8 ----------------------
IEC 61000-3-2:2018 © IEC 2018 – 7 –
ELECTROMAGNETIC COMPATIBILITY (EMC) –
Part 3-2: Limits – Limits for harmonic current emissions
(equipment input current ≤ 16 A per phase)
1 Scope

This part of IEC 61000 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.

This part of IEC 61000 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.

NOTE The words apparatus, appliance, device and equipment are used throughout this document. They have the

same meaning for the purposes of this document.
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 60050-161, International Electrotechnical Vocabulary (IEV) – Part 161: Electromagnetic

compatibility (available at www.electropedia.org)
IEC 60155, Glow-starters for fluorescent lamps
IEC 60268-3, Sound system equipment – Part 3: Amplifiers

IEC 60335-2-24:2010, Household and similar electrical appliances – Safety – Part 2-24:

Particular requirements for refrigerating appliances, ice-cream appliances and ice makers

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
---------------------- Page: 9 ----------------------
– 8 – IEC 61000-3-2:2018 © IEC 2018
3 Terms and definitions

For the purposes of this document, the terms and definitions given in IEC 60050-161 and the

following apply.

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
portable tool

electrical tool which is hand-held during normal operation and used for a short time (a few

minutes) only

Note 1 to entry: Hand-held means that no part of the tool, except the power cord, rests on the floor during normal

operation.
3.2
lamp
source intended to produce an optical radiation, usually visible

Note 1 to entry: For the purposes of this document, a lamp can also be a solid state lighting module which can

contain further components, for example optical, electrical, mechanical and/or electronic components.

3.3
self-ballasted lamp

unit which cannot be dismantled without being permanently damaged, is provided with a lamp

cap and incorporates a light source and the lighting control gear necessary for the operation

of the light source
3.4
luminaire

apparatus which distributes, filters or transforms the light transmitted from one or more lamps

and which includes, except the lamps themselves, all the parts necessary for fixing and

protecting the lamps and, where necessary, circuit auxiliaries together with the means for

connecting them to the electric supply
[SOURCE: IEC 60050-845:1987, 845-10-01, modified – the existing notes have been
removed]
3.5
input current

current directly supplied to an equipment or a part of equipment by the AC distribution system

3.6
circuit power factor

ratio of the measured active input power to the product of the RMS supply voltage and the

RMS supply current
3.7
active power

mean value of the instantaneous power, taken over 10 (50 Hz systems) or 12 (60 Hz systems)

fundamental periods and measured in accordance with IEC 61000-4-7

Note 1 to entry: The active input power is the active power measured at the input supply terminals of the

equipment under test.
---------------------- Page: 10 ----------------------
IEC 61000-3-2:2018 © IEC 2018 – 9 –
3.8
balanced three-phase equipment
equipment having rated line current modules which differ by no more than 20 %
3.9
professional equipment

equipment for use in trades, professions or industries and which is not intended for sale to the

general public, as designated by the manufacturer

[SOURCE: IEC 60050-161:1990, 161-05-05, modified – the existing Note has been replaced

by the text added at the end of the definition]
3.10
total harmonic current
THC

total RMS value of the harmonic current components of orders 2 to 40, expressed as:

THC = I
∑ h
h=2
Note 1 to entry: This note applies to the French language only.
3.11
total harmonic distortion
THD

ratio of the RMS value of the sum of the harmonic components (in this context, harmonic

current components I of orders 2 to 40) to the RMS value of the fundamental component,

expressed as:
 I 
 
THD =
 
 
h =2
Note 1 to entry: This note applies to the French language only.
3.12
partial odd harmonic current
POHC

total RMS value of the odd harmonic current components of orders 21 to 39, expressed as:

POHC = I
∑ h
h=21,23
Note 1 to entry: This note applies to the French language only.
3.13
...

Questions, Comments and Discussion

Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.