IEC 61326-3-1:2017
(Main)Electrical equipment for measurement, control and laboratory use - EMC requirements – Part 3-1: Immunity requirements for safety-related systems and for equipment intended to perform safety-related functions (functional safety) – General industrial applications
Electrical equipment for measurement, control and laboratory use - EMC requirements – Part 3-1: Immunity requirements for safety-related systems and for equipment intended to perform safety-related functions (functional safety) – General industrial applications
IEC 61326-3-1:2017 is also available as IEC 61326-3-1:2017 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition.
IEC 61326-3-1:2017 covers all equipment within the scope of IEC 61326-1, but is limited to systems and equipment for industrial applications intended to perform safety functions as defined in IEC 61508 with SIL 1-3.
This second edition cancels and replaces the first edition published in 2008. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition:
- extension of the frequency range up to 6 GHz for the radio-frequency electromagnetic field test according to IEC 61000-4-3,
- replacement of the performance criterion FS with DS according to the generic standard IEC 61000-6-7,
- adding Table 1 - Aspects to be considered during application of performance criterion DS,
- including immunity tests for devices with current consumption > 16 A according to IEC 61000-4-34,
- updating Table 8 - Frequency ranges of mobile transmitters and ISM equipment,
- updating Figure A.1 and Figure 1 for better readability.
Matériel électrique de mesure, de commande et de laboratoire -Exigences relatives à la CEM - Partie 3-1: Exigences d'immunité pour les systèmes relatifs à la sécurité et pour les matériels destinés à réaliser des fonctions relatives à la sécurité (sécurité fonctionnelle) - Applications industrielles générales
IEC 61326-3-1:2017 est disponible sous forme de IEC 61326-3-1:2017 RLV qui contient la Norme internationale et sa version Redline, illustrant les modifications du contenu technique depuis l'édition précédente.
L’IEC 61326-3-1:2017 couvre tous les matériels qui relèvent du domaine d’application de l’IEC 61326-1, mais est limitée aux systèmes et matériels pour applications industrielles destinés à réaliser des fonctions de sécurité telles que définies dans l’IEC 61508, avec un niveau d’intégrité de sécurité (SIL) 1-3.
Cette deuxième édition annule et remplace la première édition parue en 2008. Cette édition constitue une révision technique. Cette édition inclut les modifications techniques majeures suivantes par rapport à l'édition précédente:
- extension de la plage de fréquences jusqu’à 6 GHz pour l’essai de champ électromagnétique à fréquences radioélectriques, conformément à l’IEC 61000-4-3,
- remplacement du critère de performance FS par DS, conformément à la norme générique IEC 61000-6-7,
- ajout du Tableau 1 – aspects à prendre en considération lors de l'application du critère de performance DS,
- intégration d’essais d’immunité pour les dispositifs ayant une consommation de courant > 16 A, conformément à l’IEC 61000-4-34,
- mise à jour du Tableau 8 - Plages de fréquences des émetteurs mobiles et des matériels ISM,
- mise à jour de la Figure A.1 et de la Figure 1 pour une meilleure lisibilité.
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IEC 61326-3-1 ®
Edition 2.0 2017-05
REDLINE VERSION
INTERNATIONAL
STANDARD
colour
inside
Electrical equipment for measurement, control and laboratory use – EMC
requirements –
Part 3-1: Immunity requirements for safety-related systems and for equipment
intended to perform safety-related functions (functional safety) – General
industrial applications
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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3, rue de Varembé Fax: +41 22 919 03 00
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Switzerland www.iec.ch
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.
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IEC 61326-3-1 ®
Edition 2.0 2017-05
REDLINE VERSION
INTERNATIONAL
STANDARD
colour
inside
Electrical equipment for measurement, control and laboratory use – EMC
requirements –
Part 3-1: Immunity requirements for safety-related systems and for equipment
intended to perform safety-related functions (functional safety) – General
industrial applications
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 25.040.40; 33.100.20 ISBN 978-2-8322-4356-5
– 2 – IEC 61326-3-1:2017 RLV © IEC 2017
CONTENTS
FOREWORD . 4
INTRODUCTION . 2
1 Scope . 8
2 Normative references . 8
3 Terms, definitions and abbreviations . 10
3.1 Terms and definitions . 10
3.2 Abbreviations . 10
4 General . 13
5 EMC test plan . 14
5.1 General . 14
5.2 Instruction for testing . 14
5.3 Configuration of EUT during testing . 15
5.3.1 General . 15
5.3.2 Composition of EUT . 15
5.3.3 Assembly of EUT . 15
5.3.4 I/O ports . 15
5.3.5 Auxiliary equipment (AE) . 15
5.3.6 Cabling and earthing (grounding) . 15
5.4 Operation conditions of EUT during testing . 16
5.4.1 Operation modes . 16
5.4.2 Environmental conditions . 16
5.4.3 EUT software during test . 16
5.5 Specification of performance criteria . 16
5.6 Test description . 16
6 Performance criteria . 16
6.1 Performance criterion FS DS . 16
6.2 Application of the performance criterion FS DS . 16
6.3 Aspects to be considered during application of performance criterion DS . 17
7 Immunity requirements . 18
8 Test set-up and test philosophy for EUTs with functions intended for safety
applications . 26
8.1 Testing of safety-related systems and equipment intended to be used in
safety-related systems . 26
8.2 Test philosophy for equipment intended for use in safety-related systems . 26
8.3 Test philosophy for safety-related systems . 27
8.4 Test configuration and test performance . 27
8.5 Monitoring . 27
9 Test results and test report . 29
Annex A (informative) Approaches on how to apply IEC 61326-3 series . 35
Annex B (informative) Evaluation of electromagnetic phenomena . 37
Annex C (informative) Allowed effects during immunity tests . 41
Bibliography . 46
Figure 1 – Typical test set-up for equipment intended for use in safety-related system,
tested as stand-alone equipment or entire system . 30
Figure 2 – Typical test set-up for equipment intended for use in a safety-related system
integrated into a representative safety-related system during test . 32
Figure 3 – Typical test set-up for equipment intended for use in safety-related system
tested stand-alone .
Figure 4 – Typical test set-up for a safety-related system .
Figure A.1 – Correlation between the standards IEC 61326-1, IEC 61326-2-x,
IEC 61326-3-1 and IEC 61326-3-2 . 36
Figure B.1 – Emission/immunity levels and compatibility level, with an example of
emission/immunity levels for a single emitter and susceptor, as a function of some
independent variables (see IEC TR 61000-1-1) . 38
Table 1 – Reaction of EUT during test . 18
Table 2 – Selected frequencies for electromagnetic field tests .
Table 2 – Immunity test requirements for equipment intended for use in industrial –
Enclosure port . 19
Table 3 – Immunity test requirements for equipment intended for use in industrial –
Input and output AC power ports . 20
Table 4 – Immunity test requirements for equipment intended for use in industrial –
Input and output DC power ports. 21
Table 5 – Immunity test requirements for equipment intended for use in industrial – I/O
signal/control ports . 22
Table 6 – Immunity test requirements for equipment intended for use in industrial – I/O
signal/control ports connected direct to power supply networks. 23
Table 7– Immunity test requirements for equipment intended for use in industrial –
Functional earth port . 23
Table 8 – Frequency ranges of mobile transmitters and ISM equipment for tests with
electromagnetic fields . 25
Table 9 – Selected Frequency ranges of mobile transmitters and ISM equipment for
the conducted RF tests . 26
Table 10 – Applicable performance criteria and observed behaviour during test for
equipment intended for use in safety-related systems . 27
Table B.1 – Exemplary considerations on electromagnetic phenomena and test levels
with regard to functional safety in industrial applications . 40
Table C.1 – Allowed effects during immunity tests on functions of equipment (1 of 2) . 42
Table C.2 – Allowed effects during immunity tests on functions of a system (1 of 2). 44
– 4 – IEC 61326-3-1:2017 RLV © IEC 2017
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
ELECTRICAL EQUIPMENT FOR MEASUREMENT, CONTROL
AND LABORATORY USE – EMC REQUIREMENTS –
Part 3-1: Immunity requirements for safety-related systems and
for equipment intended to perform safety-related functions
(functional safety) – General industrial applications
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
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3) IEC Publications have the form of recommendations for international use and are accepted by IEC National
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Publications is accurate,
...
IEC 61326-3-1 ®
Edition 2.0 2017-05
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Electrical equipment for measurement, control and laboratory use – EMC
requirements –
Part 3-1: Immunity requirements for safety-related systems and for equipment
intended to perform safety-related functions (functional safety) – General
industrial applications
Matériel électrique de mesure, de commande et de laboratoire – Exigences
relatives à la CEM –
Partie 3-1: Exigences d'immunité pour les systèmes relatifs à la sécurité et
pour les matériels destinés à réaliser des fonctions relatives à la sécurité
(sécurité fonctionnelle) – Applications industrielles 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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3, rue de Varembé Fax: +41 22 919 03 00
CH-1211 Geneva 20 info@iec.ch
Switzerland www.iec.ch
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 20 000 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 - www.iec.ch/searchpub IEC Glossary - std.iec.ch/glossary
The advanced search enables to find IEC publications by a 65 000 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.
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IEC 61326-3-1 ®
Edition 2.0 2017-05
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Electrical equipment for measurement, control and laboratory use – EMC
requirements –
Part 3-1: Immunity requirements for safety-related systems and for equipment
intended to perform safety-related functions (functional safety) – General
industrial applications
Matériel électrique de mesure, de commande et de laboratoire – Exigences
relatives à la CEM –
Partie 3-1: Exigences d'immunité pour les systèmes relatifs à la sécurité et
pour les matériels destinés à réaliser des fonctions relatives à la sécurité
(sécurité fonctionnelle) – Applications industrielles générales
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 25.040.40; 33.100.20 ISBN 978-2-8322-4212-4
– 2 – IEC 61326-3-1:2017 © IEC 2017
CONTENTS
FOREWORD . 4
INTRODUCTION . 6
1 Scope . 8
2 Normative references . 8
3 Terms, definitions and abbreviations . 9
3.1 Terms and definitions . 9
3.2 Abbreviations . 12
4 General . 13
5 EMC test plan . 13
5.1 General . 13
5.2 Instruction for testing . 13
5.3 Configuration of EUT during testing . 14
5.3.1 General . 14
5.3.2 Composition of EUT . 14
5.3.3 Assembly of EUT . 14
5.3.4 I/O ports . 14
5.3.5 Auxiliary equipment (AE) . 14
5.3.6 Cabling and earthing (grounding) . 14
5.4 Operation conditions of EUT during testing . 14
5.4.1 Operation modes . 14
5.4.2 Environmental conditions . 15
5.4.3 EUT software during test . 15
5.5 Specification of performance criteria . 15
5.6 Test description . 15
6 Performance criteria . 15
6.1 Performance criterion DS . 15
6.2 Application of the performance criterion DS . 16
6.3 Aspects to be considered during application of performance criterion DS . 16
7 Immunity requirements . 17
8 Test set-up and test philosophy for EUTs with functions intended for safety
applications . 22
8.1 Testing of safety-related systems and equipment intended to be used in
safety-related systems . 22
8.2 Test philosophy for equipment intended for use in safety-related systems . 22
8.3 Test philosophy for safety-related systems . 23
8.4 Test configuration and test performance . 23
8.5 Monitoring . 24
9 Test results and test report . 24
Annex A (informative) Approaches on how to apply IEC 61326-3 series . 27
Annex B (informative) Evaluation of electromagnetic phenomena . 30
Annex C (informative) Allowed effects during immunity tests . 34
Bibliography . 39
Figure 1 – Typical test set-up for equipment intended for use in safety-related system,
tested as stand-alone equipment or entire system . 25
Figure 2 – Typical test set-up for equipment intended for use in a safety-related system
integrated into a representative safety-related system during test . 26
Figure A.1 – Correlation between the standards IEC 61326-1, IEC 61326-2-x,
IEC 61326-3-1 and IEC 61326-3-2 . 29
Figure B.1 – Emission/immunity levels and compatibility level, with an example of
emission/immunity levels for a single emitter and susceptor, as a function of some
independent variables (see IEC TR 61000-1-1) . 31
Table 1 – Reaction of EUT during test . 16
Table 2 – Immunity test requirements – Enclosure port . 17
Table 3 – Immunity test requirements – Input and output AC power ports . 18
Table 4 – Immunity test requirements – Input and output DC power ports . 19
Table 5 – Immunity test requirements – I/O signal/control ports . 19
Table 6 – Immunity test requirements – I/O signal/control ports connected direct to
power supply networks. 20
Table 7 – Immunity test requirements – Functional earth port . 20
Table 8 – Frequency ranges of mobile transmitters and ISM equipment for tests with
electromagnetic fields . 21
Table 9 – Frequency ranges of mobile transmitters and ISM equipment for the
conducted RF tests . 22
Table 10 – Applicable performance criteria and observed behaviour du
...
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