IEC 62368-1:2023

Audio/video, information and communication technology equipment - Part 1: Safety requirements

IEC 62368-1:2023 is a product safety standard that classifies energy sources, prescribes safeguards against those energy sources, and provides guidance on the application of, and requirements for, those safeguards. The prescribed safeguards are intended to reduce the likelihood of pain, injury and, in the case of fire, property damage. The objective of the introduction is to help designers to understand the underlying principles of safety in order to design safe equipment. These principles are informative and not an alternative to the detailed requirements of this document.

Equipements des technologies de l'audio/vidéo, de l'information et de la communication - Partie 1: Exigences de sécurité

L'IEC 62368-1:2023 est une norme de sécurité des produits qui classe les sources d’énergie, prescrit des mesures de protection contre ces sources d’énergie et fournit des lignes directrices sur l’application et les exigences de ces garanties. Les mesures de protection prescrites visent à réduire la probabilité de douleur, de blessure et, en cas d’incendie, de dommages matériels. L’objectif de l’introduction est d’aider les concepteurs à comprendre les principes sous-jacents de la sécurité afin de concevoir des équipements sûrs. Ces principes sont instructifs et ne constituent pas une alternative aux exigences détaillées du présent document.

General Information

• Status: Published
• Publication Date: 25-May-2023
• ICS: 33.160.01 - Audio, video and audiovisual systems in general
• ICS: 35.020 - Information technology (IT) in general
• Technical Committee: TC 108 - Safety of electronic equipment within the field of audio/video, information technology and communication technology
• Drafting Committee: WG HBSDT - TC 108/WG HBSDT
• Current Stage: PPUB - Publication issued
• Start Date: 16-Jun-2023
• Completion Date: 26-May-2023

Relations

• Revises: IEC 62368-1:2018 - Audio/video, information and communication technology equipment - Part 1: Safety requirements
• Effective Date: 05-Sep-2023
• Revises: IEC 62368-1:2018/COR1:2020 - Corrigendum 1 - Audio/video, information and communication technology equipment - Part 1: Safety requirements
• Effective Date: 05-Sep-2023

Standards Content (Sample)

IEC 62368-1 ®
Edition 4.0 2023-05
REDLINE VERSION
INTERNATIONAL
STANDARD
colour
inside
Audio/video, information and communication technology equipment –
Part 1: Safety requirements
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.

IEC Secretariat Tel.: [phone]
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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.

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IEC 62368-1 ®
Edition 4.0 2023-05
REDLINE VERSION
INTERNATIONAL
STANDARD
colour
inside
Audio/video, information and communication technology equipment –
Part 1: Safety requirements
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 33.160.01; 35.020 ISBN 978-2-8322-7086-8

– 2 – IEC 62368-1:2023 RLV © IEC 2023
CONTENTS
FOREWORD . 20
INTRODUCTION . 23
0 Principles of this product safety standard . 23
0.1 Objective . 23
0.2 Persons . 23
0.2.1 General . 23
0.2.2 Ordinary person . 23
0.2.3 Instructed person . 23
0.2.4 Skilled person . 23
0.3 Model for pain and injury . 24
0.4 Energy sources . 24
0.5 Safeguards . 25
0.5.1 General . 25
0.5.2 Equipment safeguard . 26
0.5.3 Installation safeguard . 26
0.5.4 Personal safeguard. 27
0.5.5 Behavioural safeguards . 27
0.5.6 Safeguards during ordinary or instructed person service conditions . 28
0.5.7 Equipment safeguards during skilled person service conditions . 28
0.5.8 Examples of safeguard characteristics . 28
0.6 Electrically-caused pain or injury (electric shock) . 29
0.6.1 Models for electrically-caused pain or injury . 29
0.6.2 Models for protection against electrically-caused pain or injury . 30
0.7 Electrically-caused fire . 31
0.7.1 Models for electrically-caused fire . 31
0.7.2 Models for protection against electrically-caused fire . 31
0.8 Injury caused by hazardous substances . 32
0.9 Mechanically-caused injury . 32
0.10 Thermally-caused injury (skin burn) . 33
0.10.1 Models for thermally-caused injury . 33
0.10.2 Models for protection against thermally-caused pain or injury . 34
0.11 Radiation-caused injury . 35
1 Scope . 36
2 Normative references . 37
3 Terms, definitions and abbreviated terms . 45
3.1 Energy source abbreviated terms . 45
3.2 Other abbreviated terms . 46
3.3 Terms and definitions . 47
3.3.1 Circuit terms . 50
3.3.2 Enclosure terms . 51
3.3.3 Equipment terms . 51
3.3.4 Flammability terms . 53
3.3.5 Electrical insulation. 54
3.3.6 Miscellaneous . 55
3.3.7 Operating and fault conditions . 58
3.3.8 Persons . 59
3.3.9 Potential ignition sources . 60

3.3.10 Ratings . 60
3.3.11 Safeguards . 61
3.3.12 Spacings . 63
3.3.13 Temperature controls . 63
3.3.14 Voltages and currents . 63
3.3.15 Classes of equipment with respect to protection from electric shock . 64
3.3.16 Chemical terms . 65
3.3.17 Batteries . 65
3.3.18 FIW terms . 66
3.3.19 Sound exposure . 66
4 General requirements . 67
4.1 General . 67
4.1.1 Application of requirements and acceptance of materials, components
and subassemblies . 67
4.1.2 Use of components . 68
4.1.3 Equipment design and construction . 68
4.1.4 Equipment installation . 69
4.1.5 Constructions and components not specifically covered . 69
4.1.6 Orientation during transport and use . 69
4.1.7 Choice of criteria . 69
4.1.8 Liquids, refrigerants and liquid filled components (LFCs) . 70
4.1.9 Electrical measuring instruments . 70
4.1.10 Temperature measurements . 70
4.1.11 Steady state conditions . 70
4.1.12 Hierarchy of safeguards . 70
4.1.13 Examples mentioned in this document . 71
4.1.14 Tests on parts or samples separate from the end-product . 71
4.1.15 Markings and instructions . 71
4.2 Energy source classifications . 71
4.2.1 Class 1 energy source . 71
4.2.2 Class 2 energy source . 71
4.2.3 Class 3 energy source . 71
4.2.4 Energy source classification by declaration . 72
4.3 Protection against energy sources . 72
4.3.1 General . 72
4.3.2 Safeguards for protection of an ordinary person . 72
4.3.3 Safeguards for protection of an instructed person . 73
4.3.4 Safeguards for protection of a skilled person . 74
4.3.5 Safeguards in a restricted access area . 75
4.4 Safeguards . 75
4.4.1 Equivalent materials or components . 75
4.4.2 Composition of a safeguard . 75
4.4.3 Safeguard robustness . 75
4.4.4 Displacement of a safeguard by an insulating liquid . 78
4.4.5 Safety interlocks . 78
4.5 Explosion . 78
4.5.1 General . 78
4.5.2 Requirements . 79
4.6 Fixing of conductors and conductive parts. 79

– 4 – IEC 62368-1:2023 RLV © IEC 2023
4.6.1 Requirements . 79
4.6.2 Compliance criteria . 79
4.7 Equipment for direct insertion into mains socket-outlets . 80
4.7.1 General .
...

IEC 62368-1 ®
Edition 4.0 2023-05
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Audio/video, information and communication technology equipment –
Part 1: Safety requirements
Équipements des technologies de l'audio/vidéo, de l'information et de la
communication –
Partie 1: Exigences de sécurité

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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utilisée sous quelque forme que ce soit et par aucun procédé, électronique ou mécanique, y compris la photocopie et
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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 Secretariat Tel.: [phone]
3, rue de Varembé [e-mail]
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. With a subscription you will always have
committee, …). It also gives information on projects, replaced access to up to date content tailored to your needs.
and withdrawn publications.
Electropedia - www.electropedia.org
IEC Just Published - webstore.iec.ch/justpublished
The world's leading online dictionary on electrotechnology,
Stay up to date on all new IEC publications. Just Published
containing more than 22 300 terminological entries in English
details all new publications released. Available online and once
and French, with equivalent terms in 19 additional languages.
a month by email.
Also known as the International Electrotechnical Vocabulary

(IEV) online.
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If you wish to give us your feedback on this publication or need
further assistance, please contact the Customer Service
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IEC 62368-1 ®
Edition 4.0 2023-05
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Audio/video, information and communication technology equipment –

Part 1: Safety requirements
Équipements des technologies de l'audio/vidéo, de l'information et de la

communication –
Partie 1: Exigences de sécurité

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 33.160.01; 35.020 ISBN 978-2-8322-7019-6

– 2 – IEC 62368-1:2023 © IEC 2023
CONTENTS
FOREWORD . 20
INTRODUCTION . 23
0 Principles of this product safety standard . 23
0.1 Objective . 23
0.2 Persons . 23
0.2.1 General . 23
0.2.2 Ordinary person . 23
0.2.3 Instructed person . 23
0.2.4 Skilled person . 23
0.3 Model for pain and injury . 24
0.4 Energy sources . 24
0.5 Safeguards . 25
0.5.1 General . 25
0.5.2 Equipment safeguard . 26
0.5.3 Installation safeguard . 26
0.5.4 Personal safeguard. 27
0.5.5 Behavioural safeguards . 27
0.5.6 Safeguards during ordinary or instructed person service conditions . 28
0.5.7 Equipment safeguards during skilled person service conditions . 28
0.5.8 Examples of safeguard characteristics . 28
0.6 Electrically-caused pain or injury (electric shock) . 29
0.6.1 Models for electrically-caused pain or injury . 29
0.6.2 Models for protection against electrically-caused pain or injury . 30
0.7 Electrically-caused fire . 31
0.7.1 Models for electrically-caused fire . 31
0.7.2 Models for protection against electrically-caused fire . 31
0.8 Injury caused by hazardous substances . 32
0.9 Mechanically-caused injury . 32
0.10 Thermally-caused injury (skin burn) . 33
0.10.1 Models for thermally-caused injury . 33
0.10.2 Models for protection against thermally-caused pain or injury . 34
0.11 Radiation-caused injury . 35
1 Scope . 36
2 Normative references . 37
3 Terms, definitions and abbreviated terms . 44
3.1 Energy source abbreviated terms . 44
3.2 Other abbreviated terms . 46
3.3 Terms and definitions . 47
3.3.1 Circuit terms . 50
3.3.2 Enclosure terms . 51
3.3.3 Equipment terms . 51
3.3.4 Flammability terms . 53
3.3.5 Electrical insulation. 54
3.3.6 Miscellaneous . 55
3.3.7 Operating and fault conditions . 58
3.3.8 Persons . 59
3.3.9 Potential ignition sources . 60

3.3.10 Ratings . 60
3.3.11 Safeguards . 61
3.3.12 Spacings . 63
3.3.13 Temperature controls . 63
3.3.14 Voltages and currents . 63
3.3.15 Classes of equipment with respect to protection from electric shock . 64
3.3.16 Chemical terms . 65
3.3.17 Batteries . 65
3.3.18 FIW terms . 66
3.3.19 Sound exposure . 66
4 General requirements . 67
4.1 General . 67
4.1.1 Application of requirements and acceptance of materials, components
and subassemblies . 67
4.1.2 Use of components . 68
4.1.3 Equipment design and construction . 68
4.1.4 Equipment installation . 69
4.1.5 Constructions and components not specifically covered . 69
4.1.6 Orientation during transport and use . 69
4.1.7 Choice of criteria . 69
4.1.8 Liquids, refrigerants and liquid filled components (LFCs) . 69
4.1.9 Electrical measuring instruments . 70
4.1.10 Temperature measurements . 70
4.1.11 Steady state conditions . 70
4.1.12 Hierarchy of safeguards . 70
4.1.13 Examples mentioned in this document . 70
4.1.14 Tests on parts or samples separate from the end-product . 71
4.1.15 Markings and instructions .
...