IEC 62368-1:2010
(Main)Audio/video, information and communication technology equipment - Part 1: Safety requirements
Audio/video, information and communication technology equipment - Part 1: Safety requirements
IEC 62368-1:2010 is applicable to the safety of electrical and electronic equipment within the field of audio, video, information and communication technology, and business and office machines with a rated voltage not exceeding 600 V. This standard does not include requirements for performance or functional characteristics of equipment. This standard 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 contents of the corrigendum of June 2010 have been included in this copy.
Equipements des technologies de l'audio/vidéo, de l'information et de la communication - Partie 1: Exigences de sécurité
La CEI 62368-1:2010 s'applique à la sécurité de l'équipement électrique et électronique dans le domaine des technologies audio, vidéo, d'information et de communication, et des machines commerciales ou de bureau dont la tension assignée est inférieure ou égale à 600 V. La présente norme ne contient ni les exigences de performances ni les caractéristiques fonctionnelles de l'équipement. La présente norme ne contient pas d'exigences relatives à la sécurité fonctionnelle. La présente Norme internationale est une norme relative à la sécurité des produits qui classifie les sources d'énergie, prescrit des protections contre ces sources d'énergie, et fournit des recommandations concernant leur application et leurs exigences. Elle inclut le Corrigendum 1 (2010-06).
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IEC 62368-1
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Audio/video, information and communication technology equipment –
Part 1: Safety requirements
IEC 62368-1:2010(E)
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THIS PUBLICATION IS COPYRIGHT PROTECTED
Copyright © 2010 IEC, Geneva, Switzerland
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 corrigenda or an amendment might have been published.
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IEC 62368-1
®
Edition 1.0 2010-01
INTERNATIONAL
STANDARD
colour
inside
Audio/video, information and communication technology equipment –
Part 1: Safety requirements
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
PRICE CODE
XH
ICS 33.160.01; 35.020 ISBN 978-2-88910-684-4
® Registered trademark of the International Electrotechnical Commission
---------------------- Page: 3 ----------------------
– 2 – 62368-1 © IEC:2010(E)
CONTENTS
FOREWORD.13
INTRODUCTION.15
0 Principles of this product safety standard .15
0.1 Objective.15
0.2 Persons.15
0.2.1 General .15
0.2.2 Ordinary person.15
0.2.3 Instructed person.15
0.2.4 Skilled person.15
0.3 Model for pain and injury .15
0.4 Energy sources .16
0.5 Safeguards.17
0.5.1 General .17
0.5.2 Equipment safeguard.18
0.5.3 Installation safeguard .18
0.5.4 Instructional safeguard .18
0.5.5 Personal safeguard .19
0.5.6 Safeguards during ordinary or instructed person service conditions.19
0.5.7 Equipment safeguards during skilled person service conditions .19
0.5.8 Precautionary safeguard.19
0.5.9 Skill safeguard.19
0.5.10 Examples of safeguard characteristics.20
0.6 Electrically-caused pain or injury (electric shock) .21
0.6.1 General .21
0.6.2 Models for electrically-caused pain or injury .21
0.6.3 Models for protection against electrically-caused pain or injury.21
0.7 Electrically-caused fire .22
0.7.1 General .22
0.7.2 Models for electrically-caused fire .22
0.7.3 Models for protection against electrically-caused fire.23
0.8 Chemically-caused injury.23
0.9 Mechanically-caused injury.24
0.10 Thermally-caused injury (skin burn).25
0.10.1 General .25
0.10.2 Models for thermally-caused injury .25
0.10.3 Models for protection against thermally-caused pain or injury .26
0.11 Radiation-caused injury.27
1 Scope.29
2 Normative references .30
3 Terms, definitions and abbreviations .35
3.1 General .35
3.2 Terms and abbreviations .35
3.2.1 Terms in alphabetical order .35
3.2.2 Abbreviations in alphabetical order.36
3.3 Terms and definitions .36
3.3.1 Circuit terms.38
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62368-1 © IEC:2010(E) – 3 –
3.3.2 Enclosure terms .38
3.3.3 Equipment terms .39
3.3.4 Flammability terms .40
3.3.5 Insulation.41
3.3.6 Miscellaneous.42
3.3.7 Operating and fault conditions .43
3.3.8 Persons .44
3.3.9 Potential ignition sources.44
3.3.10 Ratings.45
3.3.11 Safeguards.45
3.3.12 Spacings .47
3.3.13 Temperatures and controls .47
3.3.14 Voltages and currents.48
3.3.15 Classes of equipment with respect to protection from electric shock .49
3.3.16 Chemical terms .49
4 General requirements .50
4.1 General .50
4.1.1 Application of requirements and acceptance of materials,
components and subassemblies .50
4.1.2 Use of components.50
4.1.3 Equipment design and construction .51
4.1.4 Equipment installation .51
4.1.5 Constructions not specifically covered .51
4.1.6 Orientation during transport and use.51
4.1.7 Choice of criteria .51
4.1.8 Conductive liquids .51
4.1.9 Electrical measuring instruments .52
4.1.10 Temperature measurements .52
4.1.11 Steady state conditions .52
4.1.12 Hierarchy of safeguards.52
4.1.13 Examples mentioned in the standard .52
4.1.14 Tests on parts or samples separate from the end-product.52
4.1.15 Markings and instructions .52
4.2 Energy source classifications .53
4.2.1 Class 1 energy source .53
4.2.2 Class 2 energy source .53
4.2.3 Class 3 energy source .53
4.2.4 Energy source classification by declaration .53
4.3 Protection against energy sources.54
4.3.1 General .54
4.3.2 Safeguards for protection of an ordinary person .54
4.3.3 Protection of an instructed person .55
4.3.4 Protection of a skilled person.56
4.3.5 Safeguards in a restricted access area .57
4.4 Safeguards.57
4.4.1 General .57
4.4.2 Equivalent materials or components .57
4.4.3 Composition of a safeguard .57
4.4.4 Accessible parts of a safeguard.57
---------------------- Page: 5 ----------------------
– 4 – 62368-1 © IEC:2010(E)
4.4.5 Safeguard robustness.59
4.4.6 Air comprising a safeguard .59
4.5 Explosion .59
4.5.1 General .59
4.5.2 Requirements .59
4.5.3 Compliance .59
5 Electrically-caused injury.60
5.1 General .60
5.2 Classification and limits of electrical energy sources .60
5.2.1 Electrical energy source classifications.60
5.2.2 ES1, ES2 and ES3 limits .60
5.3 Protection against electrical energy sources.66
5.3.1 General .66
5.3.2 Protection of an ordinary person.66
5.3.3 Protection of an instructed person .67
5.3.4 Protection of a skilled person.67
5.3.5 Safeguards between energy sources .67
5.3.6 Accessibility to electrical energy sources and safeguards .68
5.4 Insulation materials and requirements .71
5.4.1 General .71
5.4.2 Clearances .76
5.4.3 Creepage distances.88
5.4.4 Solid insulation .92
5.4.5 Antenna terminal insulation .100
5.4.6 Insulation of internal wire as a part of a supplementary safeguard .101
5.4.7 Thermal cycling test procedure. 102
5.4.8 Test for pollution degree 1 environment and for an insulating
compound.102
5.4.9 Tests for semiconductor components and for cemented joints . 103
5.4.10 Humidity conditioning .103
5.4.11 Electric strength test.103
5.4.12 Protection of ordinary and instructed persons against transient
voltages from external circuits .107
5.4.13 Separation between external circuits and earth.107
5.5 Components as safeguards .109
5.5.1 General .109
5.5.2 Components as basic safeguard and supplementary safeguard . 109
5.5.3 Components as a reinforced safeguard .112
5.5.4 Insulation between the mains and an external circuit consisting of a
coaxial cable .113
5.5.5 Components and parts that may bridge insulation. 113
5.6 Protective conductor.114
5.6.1 General requirements .114
5.6.2 Corrosion .114
5.6.3 Colour of insulation.114
5.6.4 Test for low current carrying protective conductors . 115
5.6.5 Protective conductors used as basic a safeguard between ES1 and
ES2 .115
5.6.6 Protective conductors used as a supplementary safeguard. 115
---------------------- Page: 6 ----------------------
62368-1 © IEC:2010(E) – 5 –
5.6.7 Protective earthing conductors serving as a double or reinforced
safeguard .120
5.6.8 Reliable earthing .121
5.7 Prospective touch voltage, touch current and protective conductor current . 122
5.7.1 General .122
5.7.2 Measuring devices and networks .122
5.7.3 Equipment set-up, supply connections and earth connections. 122
5.7.4 Unearthed conductive accessible parts. 123
5.7.5 Earthed accessible conductive parts.123
5.7.6 Protective conductor current.124
5.7.7 Prospective touch voltage and touch current due to external circuits .124
5.7.8 Summation of touch currents from external circuits. 124
6 Electrically-caused fire .125
6.1 General .125
6.2 Classification of power sources (PS) and potential ignition sources (PIS) . 126
6.2.1 General .126
6.2.2 Power source circuit classifications .126
6.2.3 Classification of potential ignition sources .129
6.3 Safeguards against fire under normal operating conditions and abnormal
operating conditions .130
6.3.1 Requirements .130
6.3.2 Compliance .131
6.4 Safeguards against fire under single fault conditions . 131
6.4.1 General .131
6.4.2 Reduction of the likelihood of ignition under single fault conditions in
PS1 circuits .131
6.4.3 Reduction of the likelihood of ignition under single fault conditions in
PS2 circuits and PS3 circuits.131
6.4.4 Control of fire spread in PS1 circuits.133
6.4.5 Control of fire spread in PS2 circuits.133
6.4.6 Control of fire spread in a PS3 circuit .134
6.4.7 Separation of combustible materials from a PIS. 135
6.4.8 Fire enclosures and fire barriers .138
6.5 Internal and external wiring .142
6.5.1 General .142
6.5.2 Requirements .142
6.5.3 Compliance .142
6.5.4 Requirements for interconnection to building wiring. . 142
6.5.5 Compliance .143
6.6 Likelihood of fire due to entry of foreign objects . 143
6.7 Safeguards against fire due to the connection of secondary equipment . 143
7 Chemically-caused injury.144
7.1 General .144
7.2 Reduction of exposure to hazardous chemicals . 144
7.3 Ozone exposure .144
7.4 Use of PPE .144
7.5 Use of instructional safeguards and instructions.144
7.6 Batteries.144
8 Mechanically-caused injury.145
---------------------- Page: 7 ----------------------
– 6 – 62368-1 © IEC:2010(E)
8.1 General .145
8.2 Mechanical energy source classifications . 145
8.2.1 General classification .145
8.2.2 MS1.146
8.2.3 MS2.146
8.2.4 MS3.146
8.3 Protection against mechanical energy sources . 146
8.3.1 General .146
8.3.2 Protection of ordinary persons . 147
8.3.3 Protection of instructed person . 147
8.3.4 Protection of skilled persons.147
8.4 Safeguards against parts with sharp edges and corners . 147
8.4.1 Requirements .147
8.4.2 Instructional safeguard .148
8.4.3 Compliance .148
8.5 Safeguards against moving parts .148
8.5.1 Requirements .148
8.5.2 MS2 or MS3 part required to be accessible for the function of the
equipment .149
8.5.3 Compliance .149
8.5.4 Special categories of equipment comprising moving parts . 149
8.5.5 Protection of persons against loosening, exploding or imploding parts. 151
8.6 Stability of equipment.154
8.6.1 Requirements .154
8.6.2 Static stability for floor standing equipment.155
8.6.3 Non-floor standing equipment having controls that are accessed
during normal use or having displays with moving images . 157
8.7 Equipment mounted to a wall or ceiling .157
8.7.1 General .157
8.7.2 Test method .157
8.7.3 Compliance .158
8.8 Handle strength test method.158
8.8.1 General .158
8.8.2 Compliance and test method .158
8.9 Wheels or casters attachment requirements . 159
8.9.1 General .159
8.9.2 Test method .159
8.10 Carts, stands, and similar carriers .159
8.10.1 General .159
8.10.2 Marking and instructions.159
8.10.3 Cart, stand or carrier loading test and compliance . 160
8.10.4 Cart, stand or carrier impact test . 160
8.10.5 Mechanical stability .161
8.10.6 Thermoplastic temperature stability .161
8.11 Mounting means for rack mounted equipment. 161
8.11.1 Requirements .161
8.11.2 Mechanical strength test, variable N .161
8.11.3 Mechanical strength test, 250 N, including end stops. 162
8.11.4 Compliance .162
---------------------- Page: 8 ----------------------
62368-1 © IEC:2010(E) – 7 –
8.12 Telescoping or rod antennas .162
9
...
IEC 62368-1
®
Edition 1.0 2010-01
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Audio/video, information and communication technology equipment –
Part 1: Safety requirements
Equipements des technologies de l'audio/vidéo, de l'information et de la
communication –
Partie 1: Exigences de sécurité
IEC 62368-1:2010
---------------------- Page: 1 ----------------------
THIS PUBLICATION IS COPYRIGHT PROTECTED
Copyright © 2010 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
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About the IEC
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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
latest edition, a corrigenda or an amendment might have been published.
Catalogue of IEC publications: www.iec.ch/searchpub
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in English and French, with equivalent terms in additional languages. Also known as the International Electrotechnical
Vocabulary online.
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---------------------- Page: 2 ----------------------
IEC 62368-1
®
Edition 1.0 2010-01
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Audio/video, information and communication technology equipment –
Part 1: Safety requirements
Equipements des technologies de l'audio/vidéo, de l'information et de la
communication –
Partie 1: Exigences de sécurité
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
XH
CODE PRIX
ICS 33.160.01; 35.020 ISBN 978-2-88912-671-2
® Registered trademark of the International Electrotechnical Commission
Marque déposée de la Commission Electrotechnique Internationale
---------------------- Page: 3 ----------------------
– 2 – 62368-1 IEC:2010
CONTENTS
FOREWORD . 13
INTRODUCTION . 15
0 Principles of this product safety standard . 15
0.1 Objective . 15
0.2 Persons . 15
0.2.1 General . 15
0.2.2 Ordinary person . 15
0.2.3 Instructed person . 15
0.2.4 Skilled person . 15
0.3 Model for pain and injury . 15
0.4 Energy sources . 16
0.5 Safeguards . 17
0.5.1 General . 17
0.5.2 Equipment safeguard . 18
0.5.3 Installation safeguard . 18
0.5.4 Instructional safeguard . 18
0.5.5 Personal safeguard . 19
0.5.6 Safeguards during ordinary or instructed person service conditions . 19
0.5.7 Equipment safeguards during skilled person service conditions . 19
0.5.8 Precautionary safeguard . 19
0.5.9 Skill safeguard . 19
0.5.10 Examples of safeguard characteristics . 20
0.6 Electrically-caused pain or injury (electric shock) . 21
0.6.1 General . 21
0.6.2 Models for electrically-caused pain or injury . 21
0.6.3 Models for protection against electrically-caused pain or injury . 21
0.7 Electrically-caused fire . 22
0.7.1 General . 22
0.7.2 Models for electrically-caused fire . 22
0.7.3 Models for protection against electrically-caused fire . 23
0.8 Chemically-caused injury . 23
0.9 Mechanically-caused injury. 24
0.10 Thermally-caused injury (skin burn) . 25
0.10.1 General . 25
0.10.2 Models for thermally-caused injury . 25
0.10.3 Models for protection against thermally-caused pain or injury . 26
0.11 Radiation-caused injury . 27
1 Scope . 29
2 Normative references . 30
3 Terms, definitions and abbreviations . 35
3.1 General . 35
3.2 Terms and abbreviations . 35
3.2.1 Terms in alphabetical order . 35
3.2.2 Abbreviations in alphabetical order . 36
3.3 Terms and definitions . 36
3.3.1 Circuit terms . 38
---------------------- Page: 4 ----------------------
62368-1 IEC:2010 – 3 –
3.3.2 Enclosure terms . 38
3.3.3 Equipment terms . 39
3.3.4 Flammability terms . 40
3.3.5 Insulation. 41
3.3.6 Miscellaneous . 42
3.3.7 Operating and fault conditions . 43
3.3.8 Persons . 44
3.3.9 Potential ignition sources . 44
3.3.10 Ratings . 45
3.3.11 Safeguards . 45
3.3.12 Spacings . 47
3.3.13 Temperatures and controls . 47
3.3.14 Voltages and currents . 48
3.3.15 Classes of equipment with respect to protection from electric shock . 49
3.3.16 Chemical terms . 49
4 General requirements . 50
4.1 General . 50
4.1.1 Application of requirements and acceptance of materials,
components and subassemblies . 50
4.1.2 Use of components . 50
4.1.3 Equipment design and construction . 51
4.1.4 Equipment installation . 51
4.1.5 Constructions not specifically covered . 51
4.1.6 Orientation during transport and use . 51
4.1.7 Choice of criteria . 51
4.1.8 Conductive liquids . 51
4.1.9 Electrical measuring instruments . 52
4.1.10 Temperature measurements . 52
4.1.11 Steady state conditions . 52
4.1.12 Hierarchy of safeguards . 52
4.1.13 Examples mentioned in the standard . 52
4.1.14 Tests on parts or samples separate from the end-product . 52
4.1.15 Markings and instructions . 52
4.2 Energy source classifications . 53
4.2.1 Class 1 energy source . 53
4.2.2 Class 2 energy source . 53
4.2.3 Class 3 energy source . 53
4.2.4 Energy source classification by declaration . 53
4.3 Protection against energy sources . 54
4.3.1 General . 54
4.3.2 Safeguards for protection of an ordinary person . 54
4.3.3 Protection of an instructed person . 55
4.3.4 Protection of a skilled person. 56
4.3.5 Safeguards in a restricted access area . 57
4.4 Safeguards . 57
4.4.1 General . 57
4.4.2 Equivalent materials or components . 57
4.4.3 Composition of a safeguard . 57
4.4.4 Accessible parts of a safeguard . 57
---------------------- Page: 5 ----------------------
– 4 – 62368-1 IEC:2010
4.4.5 Safeguard robustness . 59
4.4.6 Air comprising a safeguard . 59
4.5 Explosion . 59
4.5.1 General . 59
4.5.2 Requirements . 59
4.5.3 Compliance . 59
5 Electrically-caused injury . 60
5.1 General . 60
5.2 Classification and limits of electrical energy sources . 60
5.2.1 Electrical energy source classifications. 60
5.2.2 ES1, ES2 and ES3 limits . 60
5.3 Protection against electrical energy sources . 66
5.3.1 General . 66
5.3.2 Protection of an ordinary person . 66
5.3.3 Protection of an instructed person . 67
5.3.4 Protection of a skilled person. 67
5.3.5 Safeguards between energy sources . 67
5.3.6 Accessibility to electrical energy sources and safeguards . 68
5.4 Insulation materials and requirements . 71
5.4.1 General . 71
5.4.2 Clearances . 76
5.4.3 Creepage distances . 88
5.4.4 Solid insulation . 92
5.4.5 Antenna terminal insulation . 100
5.4.6 Insulation of internal wire as a part of a supplementary safeguard . 101
5.4.7 Thermal cycling test procedure . 102
5.4.8 Test for pollution degree 1 environment and for an insulating
compound. 102
5.4.9 Tests for semiconductor components and for cemented joints . 103
5.4.10 Humidity conditioning . 103
5.4.11 Electric strength test . 103
5.4.12 Protection against transient voltages from external circuits . 107
5.4.13 Separation between external circuits and earth. 107
5.5 Components as safeguards . 109
5.5.1 General . 109
5.5.2 Components as basic safeguard and supplementary safeguard . 109
5.5.3 Components as a reinforced safeguard . 112
5.5.4 Insulation between the mains and an external circuit consisting of a
coaxial cable . 113
5.5.5 Components and parts that may bridge insulation . 113
5.6 Protective conductor . 113
5.6.1 General requirements . 113
5.6.2 Corrosion . 114
5.6.3 Colour of insulation. 114
5.6.4 Test for low current-carrying protective conductors . 114
5.6.5 Protective conductors used as a basic safeguard between ES1 and
ES2 . 115
5.6.6 Protective conductors used as a supplementary safeguard . 115
5.6.7 Protective earthing conductors serving as a double or reinforced
safeguard . 120
---------------------- Page: 6 ----------------------
62368-1 IEC:2010 – 5 –
5.6.8 Reliable earthing . 121
5.7 Prospective touch voltage, touch current and protective conductor current . 122
5.7.1 General . 122
5.7.2 Measuring devices and networks . 122
5.7.3 Equipment set-up, supply connections and earth connections. 122
5.7.4 Unearthed conductive accessible parts . 123
5.7.5 Earthed accessible conductive parts . 123
5.7.6 Protective conductor current . 124
5.7.7 Prospective touch voltage and touch current due to external circuits . 124
5.7.8 Summation of touch currents from external circuits . 124
6 Electrically-caused fire . 125
6.1 General . 125
6.2 Classification of power sources (PS) and potential ignition sources (PIS) . 126
6.2.1 General . 126
6.2.2 Power source circuit classifications . 126
6.2.3 Classification of potential ignition sources . 129
6.3 Safeguards against fire under normal operating conditions and abnormal
operating conditions . 130
6.3.1 Requirements . 130
6.3.2 Compliance . 131
6.4 Safeguards against fire under single fault conditions . 131
6.4.1 General . 131
6.4.2 Reduction of the likelihood of ignition under single fault conditions in
PS1 circuits . 131
6.4.3 Reduction of the likelihood of ignition under single fault conditions in
PS2 circuits and PS3 circuits . 131
6.4.4 Control of fire spread in PS1 circuits. 133
6.4.5 Control of fire spread in PS2 circuits. 133
6.4.6 Control of fire spread in a PS3 circuit . 134
6.4.7 Separation of combustible materials from a PIS . 135
6.4.8 Fire enclosures and fire barriers . 138
6.5 Internal and external wiring . 142
6.5.1 General . 142
6.5.2 Requirements . 142
6.5.3 Compliance . 142
6.5.4 Requirements for interconnection to building wiring . 143
6.5.5 Compliance . 143
6.6 Likelihood of fire due to entry of foreign objects . 143
6.7 Safeguards against fire due to the connection of secondary equipment . 144
7 Chemically-caused injury . 144
7.1 General . 144
7.2 Reduction of exposure to hazardous chemicals . 144
7.3 Ozone exposure . 144
7.4 Use of PPE . 144
7.5 Use of instructional safeguards and instructions . 145
7.6 Batteries. 145
8 Mechanically-caused injury . 145
8.1 General . 145
8.2 Mechanical energy source classifications . 145
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8.2.1 General classification . 145
8.2.2 MS1 . 146
8.2.3 MS2 . 146
8.2.4 MS3 . 146
8.3 Protection against mechanical energy sources . 147
8.3.1 General . 147
8.3.2 Protection of ordinary persons . 147
8.3.3 Protection of instructed person . 147
8.3.4 Protection of skilled persons . 147
8.4 Safeguards against parts with sharp edges and corners . 148
8.4.1 Requirements . 148
8.4.2 Instructional safeguard . 148
8.4.3 Compliance . 148
8.5 Safeguards against moving parts . 148
8.5.1 Requirements . 148
8.5.2 MS2 or MS3 part required to be accessible for the function of the
equipment . 149
8.5.3 Compliance . 149
8.5.4 Special categories of equipment comprising moving parts . 149
8.5.5 Protection of persons against loosening, exploding or imploding parts . 151
8.6 Stability of equipment . 154
8.6.1 Requirements . 154
8.6.2 Static stability for floor standing equipment. 155
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