prEN IEC 62368-1:2022
(Main)Audio/video, information and communication technology equipment - Part 1: Safety requirements
Audio/video, information and communication technology equipment - Part 1: Safety requirements
2022-02-21: Common mods to this prEN IEC are included in prAA - PR=75763
Einrichtungen für Audio/Video-, Informations- und Kommunikationstechnik – Teil 1: Sicherheitsanforderungen
Équipements des technologies de l'audio/vidéo, de l'information et de la communication - Partie 1: Exigences de sécurité
Oprema za avdio/video, informacijsko in komunikacijsko tehnologijo - 1. del: Varnostne zahteve
General Information
RELATIONS
Standards Content (sample)
SLOVENSKI STANDARD
oSIST prEN IEC 62368-1:2022
01-april-2022
Oprema za avdio/video, informacijsko in komunikacijsko tehnologijo - 1. del:
Varnostne zahteve
Audio/video, information and communication technology equipment - Part 1: Safety
requirements
Einrichtungen für Audio/Video-, Informations- und Kommunikationstechnik – Teil 1:
SicherheitsanforderungenÉquipements des technologies de l'audio/vidéo, de l'information et de la communication -
Partie 1: Exigences de sécuritéTa slovenski standard je istoveten z: prEN IEC 62368-1:2022
ICS:
33.160.01 Avdio, video in avdiovizualni Audio, video and audiovisual
sistemi na splošno systems in general
35.020 Informacijska tehnika in Information technology (IT) in
tehnologija na splošno general
oSIST prEN IEC 62368-1:2022 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
---------------------- Page: 1 ----------------------oSIST prEN IEC 62368-1:2022
---------------------- Page: 2 ----------------------
oSIST prEN IEC 62368-1:2022
108/767/CDV
COMMITTEE DRAFT FOR VOTE (CDV)
PROJECT NUMBER:
IEC 62368-1 ED4
DATE OF CIRCULATION: CLOSING DATE FOR VOTING:
2022-02-11 2022-05-06
SUPERSEDES DOCUMENTS:
108/755/CD, 108/766/CC
IEC TC 108 : SAFETY OF ELECTRONIC EQUIPMENT WITHIN THE FIELD OF AUDIO/VIDEO, INFORMATION TECHNOLOGY AND
COMMUNICATION TECHNOLOGYSECRETARIAT: SECRETARY:
United States of America Ms Valara Davis
OF INTEREST TO THE FOLLOWING COMMITTEES: PROPOSED HORIZONTAL STANDARD:
TC 23,TC 34,TC 61,TC 62,TC 100
Other TC/SCs are requested to indicate their interest, if
any, in this CDV to the secretary.
FUNCTIONS CONCERNED:
EMC ENVIRONMENT QUALITY ASSURANCE SAFETY
SUBMITTED FOR CENELEC PARALLEL VOTING NOT SUBMITTED FOR CENELEC PARALLEL VOTING
Attention IEC-CENELEC parallel votingThe attention of IEC National Committees, members of
CENELEC, is drawn to the fact that this Committee Draft
for Vote (CDV) is submitted for parallel voting.
The CENELEC members are invited to vote through the
CENELEC online voting system.
This document is still under study and subject to change. It should not be used for reference purposes.
Recipients of this document are invited to submit, with their comments, notification of any relevant patent rights of
which they are aware and to provide supporting documentation.TITLE:
Audio/video, information and communication technology equipment - Part 1: Safety
requirements
PROPOSED STABILITY DATE: 2026
NOTE FROM TC/SC OFFICERS:
Copyright © 2021 International Electrotechnical Commission, IEC. All rights reserved. It is permitted to download this
electronic file, to make a copy and to print out the content for the sole purpose of preparing National Committee positions.
You may not copy or "mirror" the file or printed version of the document, or any part of it, for any other purpose without
permission in writing from IEC.---------------------- Page: 3 ----------------------
oSIST prEN IEC 62368-1:2022
IEC CDV 62368-1 ED4 © IEC 2022 – 2 – 108/767/CDV
1 CONTENTS
2 CONTENTS ............................................................................................................................ 2
3 FOREWORD ......................................................................................................................... 19
4 INTRODUCTION ................................................................................................................... 21
5 0 Principles of this product safety standard ...................................................................... 21
6 0.1 Objective .............................................................................................................. 21
7 0.2 Persons ................................................................................................................ 21
8 0.2.1 General ......................................................................................................... 21
9 0.2.2 Ordinary person ............................................................................................. 21
10 0.2.3 Instructed person ........................................................................................... 21
11 0.2.4 Skilled person ................................................................................................ 21
12 0.3 Model for pain and injury ....................................................................................... 22
13 0.4 Energy sources ..................................................................................................... 22
14 0.5 Safeguards ........................................................................................................... 23
15 0.5.1 General ......................................................................................................... 23
16 0.5.2 Equipment safeguard ..................................................................................... 24
17 0.5.3 Installation safeguard .................................................................................... 24
18 0.5.4 Personal safeguard........................................................................................ 24
19 0.5.5 Behavioural safeguards ................................................................................. 25
20 0.5.6 Safeguards during ordinary or instructed person service conditions ............... 26
21 0.5.7 Equipment safeguards during skilled person service conditions ..................... 26
22 0.5.8 Examples of safeguard characteristics ........................................................... 26
23 0.6 Electrically-caused pain or injury (electric shock) .................................................. 27
24 0.6.1 Models for electrically-caused pain or injury .................................................. 27
25 0.6.2 Models for protection against electrically-caused pain or injury ...................... 28
26 0.7 Electrically-caused fire .......................................................................................... 29
27 0.7.1 Models for electrically-caused fire .................................................................. 29
28 0.7.2 Models for protection against electrically-caused fire ..................................... 29
29 0.8 Injury caused by hazardous substances ................................................................ 30
30 0.9 Mechanically-caused injury ................................................................................... 30
31 0.10 Thermally-caused injury (skin burn) ...................................................................... 31
32 0.10.1 Models for thermally-caused injury ................................................................ 31
33 0.10.2 Models for protection against thermally-caused pain or injury ........................ 32
34 0.11 Radiation-caused injury ........................................................................................ 33
35 1 Scope ............................................................................................................................ 34
36 2 Normative references .................................................................................................... 35
37 3 Terms, definitions and abbreviated terms ...................................................................... 42
38 3.1 Energy source abbreviations ................................................................................. 42
39 3.2 Other abbreviations .............................................................................................. 43
40 3.3 Terms and definitions ............................................................................................ 44
41 3.3.1 Circuit terms .................................................................................................. 47
42 3.3.2 Enclosure terms ............................................................................................. 48
43 3.3.3 Equipment terms ........................................................................................... 48
44 3.3.4 Flammability terms ........................................................................................ 50
45 3.3.5 Electrical insulation........................................................................................ 51
46 3.3.6 Miscellaneous ................................................................................................ 52
47 3.3.7 Operating and fault conditions ....................................................................... 55
48 3.3.8 Persons ......................................................................................................... 56
---------------------- Page: 4 ----------------------oSIST prEN IEC 62368-1:2022
IEC CDV 62368-1 ED4 © IEC 2022 – 3 – 108/767/CDV
49 3.3.9 Potential ignition sources ............................................................................... 56
50 3.3.10 Ratings .......................................................................................................... 57
51 3.3.11 Safeguards .................................................................................................... 57
52 3.3.12 Spacings ....................................................................................................... 59
53 3.3.13 Temperature controls ..................................................................................... 59
54 3.3.14 Voltages and currents .................................................................................... 59
55 3.3.15 Classes of equipment with respect to protection from electric shock .............. 60
56 3.3.16 Chemical terms .............................................................................................. 61
57 3.3.17 Batteries ........................................................................................................ 61
58 3.3.18 FIW terms ...................................................................................................... 62
59 3.3.19 Sound exposure ............................................................................................ 62
60 4 General requirements .................................................................................................... 63
61 4.1 General ................................................................................................................. 63
62 4.1.1 Application of requirements and acceptance of materials, components63 and subassemblies ........................................................................................ 63
64 4.1.2 Use of components ........................................................................................ 64
65 4.1.3 Equipment design and construction ............................................................... 64
66 4.1.4 Equipment installation ................................................................................... 65
67 4.1.5 Constructions and components not specifically covered ................................. 65
68 4.1.6 Orientation during transport and use .............................................................. 65
69 4.1.7 Choice of criteria ........................................................................................... 65
70 4.1.8 Liquids, refrigerants and liquid filled components (LFC´s) .............................. 65
71 4.1.9 Electrical measuring instruments ................................................................... 66
72 4.1.10 Temperature measurements .......................................................................... 66
73 4.1.11 Steady state conditions .................................................................................. 66
74 4.1.12 Hierarchy of safeguards ................................................................................. 66
75 4.1.13 Examples mentioned in this document ........................................................... 66
76 4.1.14 Tests on parts or samples separate from the end-product .............................. 66
77 4.1.15 Markings and instructions .............................................................................. 67
78 4.2 Energy source classifications ................................................................................ 67
79 4.2.1 Class 1 energy source ................................................................................... 67
80 4.2.2 Class 2 energy source ................................................................................... 67
81 4.2.3 Class 3 energy source ................................................................................... 67
82 4.2.4 Energy source classification by declaration .................................................... 67
83 4.3 Protection against energy sources ........................................................................ 67
84 4.3.1 General ......................................................................................................... 67
85 4.3.2 Safeguards for protection of an ordinary person ............................................ 67
86 4.3.3 Safeguards for protection of an instructed person .......................................... 69
87 4.3.4 Safeguards for protection of a skilled person ................................................. 70
88 4.3.5 Safeguards in a restricted access area .......................................................... 71
89 4.4 Safeguards ........................................................................................................... 71
90 4.4.1 Equivalent materials or components .............................................................. 71
91 4.4.2 Composition of a safeguard ........................................................................... 71
92 4.4.3 Safeguard robustness .................................................................................... 71
93 4.4.4 Displacement of a safeguard by an insulating liquid ....................................... 74
94 4.4.5 Safety interlocks ............................................................................................ 74
95 4.5 Explosion .............................................................................................................. 74
96 4.5.1 General ......................................................................................................... 74
97 4.5.2 Requirements ................................................................................................ 74
98 4.6 Fixing of conductors and conductive parts............................................................. 75
---------------------- Page: 5 ----------------------oSIST prEN IEC 62368-1:2022
IEC CDV 62368-1 ED4 © IEC 2022 – 4 – 108/767/CDV
99 4.6.1 Requirements ................................................................................................ 75
100 4.6.2 Compliance criteria ........................................................................................ 75
101 4.7 Equipment for direct insertion into mains socket-outlets ........................................ 75
102 4.7.1 General ......................................................................................................... 75
103 4.7.2 Requirements ................................................................................................ 75
104 4.7.3 Compliance criteria ........................................................................................ 75
105 4.8 Equipment containing coin / button cell batteries ................................................... 76
106 4.8.1 General ......................................................................................................... 76
107 4.8.2 Instructional safeguard .................................................................................. 76
108 4.8.3 Construction .................................................................................................. 76
109 4.8.4 Tests ............................................................................................................. 77
110 4.8.5 Compliance criteria ........................................................................................ 77
111 4.9 Likelihood of fire or shock due to entry of conductive objects ................................ 78
112 4.10 Components requirements .................................................................................... 78
113 4.10.1 Disconnect device ......................................................................................... 78
114 4.10.2 Switches and relays ....................................................................................... 78
115 4.10.3 Power supply cords ....................................................................................... 78
116 4.10.4 Batteries and their protection circuits ............................................................. 79
117 5 Electrically-caused injury ............................................................................................... 79
118 5.1 General ................................................................................................................. 79
119 5.2 Classification and limits of electrical energy sources ............................................. 79
120 5.2.1 Electrical energy source classifications .......................................................... 79
121 5.2.2 Electrical energy source ES1 and ES2 limits .................................................. 79
122 5.3 Protection against electrical energy sources ......................................................... 85
123 5.3.1 General ......................................................................................................... 85
124 5.3.2 Accessibility to electrical energy sources and safeguards .............................. 85
125 5.4 Insulation materials and requirements ................................................................... 88
126 5.4.1 General ......................................................................................................... 88
127 5.4.2 Clearances .................................................................................................... 93
128 5.4.3 Creepage distances ..................................................................................... 103
129 5.4.4 Solid insulation ............................................................................................ 107
130 5.4.5 Antenna terminal insulation.......................................................................... 116
131 5.4.6 Insulation of internal wire as a part of a supplementary safeguard ............... 116
132 5.4.7 Tests for semiconductor components and for cemented joints ..................... 117
133 5.4.8 Humidity conditioning .................................................................................. 117
134 5.4.9 Electric strength test .................................................................................... 118
135 5.4.10 Safeguards against transient voltages from external circuits ........................ 121
136 5.4.11 Separation between external circuits and earth ............................................ 122
137 5.4.12 Insulating liquid ........................................................................................... 124
138 5.5 Components as safeguards ................................................................................. 125
139 5.5.1 General ....................................................................................................... 125
140 5.5.2 Capacitors and RC units .............................................................................. 125
141 5.5.3 Transformers ............................................................................................... 126
142 5.5.4 Optocouplers ............................................................................................... 126
143 5.5.5 Relays ......................................................................................................... 126
144 5.5.6 Resistors ..................................................................................................... 126
145 5.5.7 Surge suppressors ....................................................................................... 127
146 5.5.8 Insulation between the mains and an external circuit consisting of a147 coaxial cable ............................................................................................... 128
148 5.5.9 Safeguards for socket-outlets in outdoor equipment ..................................... 128
---------------------- Page: 6 ----------------------oSIST prEN IEC 62368-1:2022
IEC CDV 62368-1 ED4 © IEC 2022 – 5 – 108/767/CDV
149 5.6 Protective conductor ........................................................................................... 128
150 5.6.1 General ....................................................................................................... 128
151 5.6.2 Requirements for protective conductors ....................................................... 128
152 5.6.3 Requirements for protective earthing conductors ......................................... 129
153 5.6.4 Requirements for protective bonding conductors ......................................... 130
154 5.6.5 Terminals for protective conductors ............................................................. 132
155 5.6.6 Resistance of the protective bonding system ............................................... 133
156 5.6.7 Reliable connection of a protective earthing conductor ................................ 135
157 5.6.8 Functional earthing ...................................................................................... 135
158 5.7 Prospective touch voltage, touch current and protective conductor current.......... 136
159 5.7.1 General ....................................................................................................... 136
160 5.7.2 Measuring devices and networks ................................................................. 136
161 5.7.3 Equipment set-up, supply connections and earth connections ...................... 136
162 5.7.4 Unearthed accessible parts ......................................................................... 136
163 5.7.5 Earthed accessible conductive parts ............................................................ 137
164 5.7.6 Requirements when touch current exceeds ES2 limits ................................. 137
165 5.7.7 Prospective touch voltage and touch current associated with external166 circuits ......................................................................................................... 137
167 5.7.8 Summation of touch currents from external circuits ...................................... 139
168 5.8 Backfeed safeguard in battery backed up supplies .............................................. 141
169 6 Electrically-caused fire ................................................................................................ 141
170 6.1 General ............................................................................................................... 141
171 6.2 Classification of power sources (PS) and potential ignition sources (PIS) ........... 141
172 6.2.1 General ....................................................................................................... 141
173 6.2.2 Power source circuit classifications ............................................................. 142
174 6.2.3 Classification of potential ignition sources ................................................... 145
175 6.3 Safeguards against fire under normal operating conditions and abnormal176 operating conditions ............................................................................................ 146
177 6.3.1 Requirements .............................................................................................. 146
178 6.3.2 Compliance criteria ...................................................................................... 147
179 6.4 Safeguards against fire under single fault conditions........................................... 147
180 6.4.1 General ....................................................................................................... 147
181 6.4.2 Reduction of the likelihood of ignition under single fault conditions in
182 PS1 circuits ................................................................................................. 147
183 6.4.3 Reduction of the likelihood of ignition under single fault conditions in
184 PS2 circuits and PS3 circuits ....................................................................... 147
185 6.4.4 Control of fire spread in PS1 circuits ............................................................ 149
186 6.4.5 Control of fire spread in PS2 circuits ............................................................ 149
187 6.4.6 Control of fire spread in a PS3 circuit .......................................................... 149
188 6.4.7 Separation of combustible materials from a PIS ........................................... 150
189 6.4.8 Fire enclosures and fire barriers .................................................................. 152
190 6.4.9 Flammability of an insulating liquid .............................................................. 159
191 6.5 Internal and external wiring ................................................................................. 159
192 6.5.1 General requirements .................................................................................. 159
193 6.5.2 Requirements for interconnection to building wiring ..................................... 160
194 6.5.3 Internal wiring for socket-outlets .................................................................. 160
195 6.6 Safeguards against fire due to the connection of additional equipment................ 160
196 7 Injury caused by hazardous substances....................................................................... 161
197 7.1 General ............................................................................................................... 161
198 7.2 Reduction of exposure to hazardous substances................................................. 161
199 7.3 Ozone exposure .................................................................................................. 161
---------------------- Page: 7 ----------------------oSIST prEN IEC 62368-1:2022
IEC CDV 62368-1 ED4 © IEC 2022 – 6 – 108/767/CDV
200 7.4 Use of personal safeguards or personal protective equipment (PPE) .................. 161
201 7.5 Use of instructional safeguards and instructions ................................................. 161
202 8 Mechanically-caused injury .......................................................................................... 162
203 8.1 General ............................................................................................................... 162
204 8.2 Mechanical energy source classifications ............................................................ 162
205 8.2.1 General classification .................................................................................. 162
206 8.2.2 MS1 ............................................................................................................. 164
207 8.2.3 MS2 ............................................................................................................. 164
208 8.2.4 MS3 ............................................................................................................. 164
209 8.3 Safeguards against mechanical energy sources .................................................. 164
210 8.4 Safeguards against parts with sharp edges and corners ..................................... 164
211 8.4.1 Requirements .............................................................................................. 164
212 8.4.2 Compliance criteria ...................................................................................... 165
213 8.5 Safeguards against moving parts ........................................................................ 165
214 8.5.1 Requirements .............................................................................................. 165
215 8.5.2 Instructional safeguard requirements ........................................................... 166
216 8.5.3 Compliance criteria ...................................................................................... 166
217 8.5.4 Special categories of equipment containing moving parts ............................ 166
218 8.5.5 High pressure lamps .................................................................................... 171
219 8.6 Stability of equipment ......................................................................................... 172
220 8.6.1 Requirements .............................................................................................. 172
221 8.6.2 Static stability .............................................................................................. 173
222 8.6.3 Relocation stability ...................................................................................... 174
223 8.6.4 Glass slide test ............................................................................................ 175
224 8.6.5 Horizontal force test and compliance criteria................................................ 175
225 8.7 Equipment mounted to a wall, ceiling or other structure ...................................... 175
226 8.7.1 Requirements ........
Questions, Comments and Discussion
Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.