IEC 61326-1:2020
(Main)Electrical equipment for measurement, control and laboratory use - EMC requirements - Part 1: General requirements
Electrical equipment for measurement, control and laboratory use - EMC requirements - Part 1: General requirements
IEC 61326:2020 specifies requirements for immunity and emissions regarding electro¬magnetic compatibility (EMC) for electrical equipment, operating from a supply or battery of less than 1 000 V AC or 1 500 V DC or from the circuit being measured. Equipment intended for professional, industrial-process, industrial-manufacturing and educational use is covered by this part. It includes equipment and computing devices for
- measurement and test;
- control;
- LABORATORY use;
- accessories intended for use with the above (such as sample handling equipment),
intended to be used in industrial and non-industrial locations.
Matériel électrique de mesure, de commande et de laboratoire - Exigences relatives à la CEM - Partie 1: Exigences générales
L’IEC 61326:2020 spécifie les exigences relatives à l'immunité et aux émissions concernant la compatibilité électromagnétique (CEM) pour les matériels électriques fonctionnant à partir d'une source d'alimentation ou d'une batterie inférieure à 1 000 V en courant alternatif ou 1 500 V en courant continu ou à partir du circuit mesuré. Elle concerne les matériels prévus pour un usage professionnel, pour les processus industriels et pour l'enseignement. Cela comprend les matériels et les dispositifs informatiques pour
- le mesurage et les essais;
- la commande;
- les applications en LABORATOIRE;
- les accessoires prévus pour être utilisés dans les cas susmentionnés (par exemple, matériel de manipulation d’échantillons),
dans un usage en milieu industriel ou non industriel.
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IEC 61326-1 ®
Edition 3.0 2020-10
REDLINE VERSION
INTERNATIONAL
STANDARD
colour
inside
Electrical equipment for measurement, control and laboratory use –
EMC requirements –
Part 1: General requirements
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form
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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.
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and withdrawn publications. Also known as the International Electrotechnical Vocabulary
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IEC 61326-1 ®
Edition 3.0 2020-10
REDLINE VERSION
INTERNATIONAL
STANDARD
colour
inside
Electrical equipment for measurement, control and laboratory use –
EMC requirements –
Part 1: General requirements
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 17.220.20; 25.040.40; 33.100.20 ISBN 978-2-8322-8994-5
– 2 – IEC 61326-1:2020 RLV © IEC 2020
CONTENTS
FOREWORD . 4
INTRODUCTION . 2
1 Scope . 7
2 Normative references . 8
3 Terms, definitions and abbreviations . 9
3.1 Terms and definitions . 9
3.2 Abbreviations . 12
4 General . 12
5 EMC test plan . 13
5.1 General . 13
5.2 Configuration of EUT during testing . 13
5.2.1 General . 13
5.2.2 Composition of EUT . 13
5.2.3 Assembly of EUT . 13
5.2.4 I/O PORTS . 13
5.2.5 AUXILIARY EQUIPMENT . 14
5.2.6 Cabling and earthing (grounding) . 14
5.3 Operation conditions of EUT during testing . 14
5.3.1 Operation modes . 14
5.3.2 Environmental conditions . 14
5.3.3 EUT software during test . 14
5.4 Specification of FUNCTIONAL PERFORMANCE . 14
5.5 Test description . 14
6 Immunity requirements . 14
6.1 Conditions during the tests. 14
6.2 Immunity test requirements . 15
6.3 Random aspects . 21
6.4 Performance criteria . 22
6.4.1 General . 22
6.4.2 Performance criterion A . 22
6.4.3 Performance criterion B . 22
6.4.4 Performance criterion C . 22
7 Emission requirements . 23
7.1 Conditions during measurements . 23
7.2 Emission limits . 23
8 Test results and test report . 24
9 Instructions for use . 24
Annex A (normative) Immunity test requirements for PORTABLE TEST AND MEASUREMENT
EQUIPMENT powered by battery or from the circuit being measured . 25
Annex B (informative) Guide for analysis and assessment for electromagnetic
compatibility. 27
B.1 General . 27
B.2 Risk analysis. 27
B.3 Risk assessment . 27
Bibliography . 29
Figure 1 – Examples of ports . 11
Table 1 – Immunity test requirements for equipment intended to be used in a BASIC
ELECTROMAGNETIC ENVIRONMENT . 16
Table 2 – Immunity test requirements for equipment intended to be used in an
INDUSTRIAL ELECTROMAGNETIC ENVIRONMENT . 18
Table 3 – Immunity test requirements for equipment intended to be used in a
CONTROLLED ELECTROMAGNETIC ENVIRONMENT . 20
Table A.1 – Immunity test requirements for PORTABLE TEST AND MEASUREMENT
EQUIPMENT . 25
– 4 – IEC 61326-1:2020 RLV © IEC 2020
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
ELECTRICAL EQUIPMENT FOR MEASUREMENT,
CONTROL AND LABORATORY USE –
EMC REQUIREMENTS –
Part 1: General requirements
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.
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8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is
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9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of
patent rights. IEC shall not be held responsible for identifying any or all such patent rights.
This redline version of the official IEC Standard allows the user to identify the changes
made to the previous edition. A vertical bar appears in the margin wherever a change
has been made. Additions are in green text, deletions are in strikethrough red text.
International Standard IEC 61326-1 has been prepared by subcommittee 65A: System
aspects, of IEC technical committee 65: Industrial-process measurement, control and
automation.
This third edition cancels and replaces the second edition, published in 2012. This edition
constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous
edition:
– the immunity test levels and performance criteria have been reviewed;
– requirements for portable test and measurement equipment have been clarified and
amended;
– the description of the electromagnetic environments has been improved.
The text of this International Standard is based on the following documents:
FDIS Report on voting
65A/975/FDIS 65A/985/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.
In this document, the following print types are used:
• Terms used throughout this document wh
...
IEC 61326-1 ®
Edition 3.0 2020-10
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Electrical equipment for measurement, control and laboratory use –
EMC requirements –
Part 1: General requirements
Matériel électrique de mesure, de commande et de laboratoire –
Exigences relatives à la CEM –
Partie 1: Exigences générales
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.
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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 corrigendum or an amendment might have been published.
IEC publications search - webstore.iec.ch/advsearchform Electropedia - www.electropedia.org
The advanced search enables to find IEC publications by a The world's leading online dictionary on electrotechnology,
variety of criteria (reference number, text, technical containing more than 22 000 terminological entries in English
committee,…). It also gives information on projects, replaced and French, with equivalent terms in 16 additional languages.
and withdrawn publications. Also known as the International Electrotechnical Vocabulary
(IEV) online.
IEC Just Published - webstore.iec.ch/justpublished
Stay up to date on all new IEC publications. Just Published IEC Glossary - std.iec.ch/glossary
details all new publications released. Available online and 67 000 electrotechnical terminology entries in English and
once a month by email. French extracted from the Terms and Definitions clause of
IEC publications issued since 2002. Some entries have been
IEC Customer Service Centre - webstore.iec.ch/csc collected from earlier publications of IEC TC 37, 77, 86 and
If you wish to give us your feedback on this publication or CISPR.
need further assistance, please contact the Customer Service
Centre: sales@iec.ch.
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IEC 61326-1 ®
Edition 3.0 2020-10
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Electrical equipment for measurement, control and laboratory use –
EMC requirements –
Part 1: General requirements
Matériel électrique de mesure, de commande et de laboratoire –
Exigences relatives à la CEM –
Partie 1: Exigences générales
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 17.220.20; 25.040.40; 33.100.20 ISBN 978-2-8322-8947-1
– 2 – IEC 61326-1:2020 © IEC 2020
CONTENTS
FOREWORD . 4
INTRODUCTION . 6
1 Scope . 7
2 Normative references . 8
3 Terms, definitions and abbreviations . 9
3.1 Terms and definitions . 9
3.2 Abbreviations . 12
4 General . 12
5 EMC test plan . 12
5.1 General . 12
5.2 Configuration of EUT during testing . 13
5.2.1 General . 13
5.2.2 Composition of EUT . 13
5.2.3 Assembly of EUT . 13
5.2.4 I/O PORTS . 13
5.2.5 AUXILIARY EQUIPMENT . 13
5.2.6 Cabling and earthing (grounding) . 13
5.3 Operation conditions of EUT during testing . 13
5.3.1 Operation modes . 13
5.3.2 Environmental conditions . 14
5.3.3 EUT software during test . 14
5.4 Specification of FUNCTIONAL PERFORMANCE . 14
5.5 Test description . 14
6 Immunity requirements . 14
6.1 Conditions during the tests. 14
6.2 Immunity test requirements . 14
6.3 Random aspects . 17
6.4 Performance criteria . 18
6.4.1 General . 18
6.4.2 Performance criterion A . 18
6.4.3 Performance criterion B . 18
6.4.4 Performance criterion C . 18
7 Emission requirements . 19
7.1 Conditions during measurements . 19
7.2 Emission limits . 19
8 Test results and test report . 19
9 Instructions for use . 20
Annex A (normative) Immunity test requirements for PORTABLE TEST AND MEASUREMENT
EQUIPMENT powered by battery or from the circuit being measured . 21
Annex B (informative) Guide for analysis and assessment for electromagnetic
compatibility. 22
B.1 General . 22
B.2 Risk analysis. 22
B.3 Risk assessment . 22
Bibliography . 24
Figure 1 – Examples of ports . 11
Table 1 – Immunity test requirements for equipment intended to be used in a BASIC
ELECTROMAGNETIC ENVIRONMENT . 15
Table 2 – Immunity test requirements for equipment intended to be used in an
INDUSTRIAL ELECTROMAGNETIC ENVIRONMENT . 16
Table 3 – Immunity test requirements for equipment intended to be used in a
CONTROLLED ELECTROMAGNETIC ENVIRONMENT . 17
Table A.1 – Immunity test requirements for PORTABLE TEST AND MEASUREMENT
EQUIPMENT . 21
– 4 – IEC 61326-1:2020 © IEC 2020
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
ELECTRICAL EQUIPMENT FOR MEASUREMENT,
CONTROL AND LABORATORY USE –
EMC REQUIREMENTS –
Part 1: General requirements
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
...
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