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首页IEC 62368-1:视听与通信技术设备安全标准
IEC 62368-1:视听与通信技术设备安全标准
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"IEC 62368-1:2014 ed.2 是一份关于视听、消费电子及通信技术设备安全要求的国际标准,旨在替代IEC 60950-1和IEC 60065。这份标准由国际电工委员会(IEC)发布,具有全球权威性,其技术委员会和分技术委员会广泛参与国际标准的制定。IEC 62368-1涵盖了产品安全的各种细节,确保这些设备在使用过程中的安全性。"
IEC 62368-1标准详细说明了视听、信息和通信技术设备的安全要求,是这个领域的一个关键参考。该标准的第二版于2014年发布,它规定了设备的设计、制造和测试应遵循的安全准则,以防止电气、热、机械、火源等潜在危险。标准的目的是保护用户免受可能因使用这些设备而产生的伤害,包括电击、火灾、过热和机械伤害等。
标准的范围不仅限于产品本身,还涵盖了设备的安装、操作和维护,确保整个生命周期内的安全。它涵盖了以下几个主要方面:
1. 电气安全:包括电源输入、绝缘、接地、电磁兼容性(EMC)等方面,确保设备在正常和异常条件下都不会对使用者造成危害。
2. 热防护:规定了设备散热和防止过热的措施,以防止火灾和烫伤风险。
3. 机械安全:涉及设备的结构设计,如防止尖锐边缘、移动部件的防护和稳定性要求,以减少物理伤害的风险。
4. 火源控制:对于可能产生火花或过热的部件,标准要求采取适当的预防措施。
5. 化学物质:考虑了材料选择,避免有害物质的使用和释放,保护用户健康。
6. 用户交互:明确了用户界面的安全要求,如警告标志、操作说明等,确保用户正确使用设备。
IEC 62368-1的实施和更新反映了技术发展和安全意识的提高。随着新版本的推出,制造商必须遵守这些更新的规定,以满足全球市场准入要求。同时,标准的国际化意味着全球范围内的统一标准,有助于简化国际贸易和提高消费者信心。
此外,IEC作为全球电工标准化的主要机构,不断推进和更新标准以适应行业发展。截至2000年底,IEC已制定了4885个国际标准,表明了其在标准化工作中的重要地位。对于制造商和监管机构来说,熟悉并遵循IEC标准是确保产品符合国际安全要求的关键。
62368-1 © IEC:2014 – 15 –
Figure 44 – Limits for moving fan blades made of plastic materials ..................................... 152
Figure D.1 – 1,2/50 µs and 10/700 µs voltage impulse generator ........................................ 191
Figure D.2 – Antenna interface test generator circuit .......................................................... 192
Figure D.3 – Example of an electronic pulse generator ....................................................... 192
Figure E.1 – Band-pass filter for wide-band noise measurement ......................................... 194
Figure F.1 – Example of an instructional safeguard ............................................................. 203
Figure G.1 – Determination of arithmetic average temperature ........................................... 215
Figure G.2 – Thermal ageing time ....................................................................................... 241
Figure G.3 – Abrasion resistance test for coating layers ..................................................... 242
Figure H.1 – Definition of ringing period and cadence cycle ................................................ 247
Figure H.2 – I
TS1
limit curve for cadenced ringing signal ................................................... 248
Figure H.3 – Peak and peak-to-peak currents ..................................................................... 248
Figure H.4 – Ringing voltage trip criteria ............................................................................. 250
Figure M.1 – Distance d as a function of the rated capacity for various charge currents
I (mA/Ah) ............................................................................................................................ 272
Figure O.1 – Narrow groove ................................................................................................ 275
Figure O.2 – Wide groove ................................................................................................... 275
Figure O.3 – V-shaped groove ............................................................................................ 276
Figure O.4 – Intervening unconnected conductive part ........................................................ 276
Figure O.5 – Rib ................................................................................................................. 276
Figure O.6 – Uncemented joint with narrow groove ............................................................. 276
Figure O.7 – Uncemented joint with wide groove ................................................................ 277
Figure O.8 – Uncemented joint with narrow and wide grooves ............................................ 277
Figure O.9 – Narrow recess ................................................................................................ 278
Figure O.10 – Wide recess ................................................................................................. 278
Figure O.11– Coating around terminals ............................................................................... 278
Figure O.12 – Coating over printed wiring ........................................................................... 279
Figure O.13 – Example of measurements in an enclosure of insulating material.................. 279
Figure O.14 – Cemented joints in multi-layer printed boards ............................................... 280
Figure O.15 – Device filled with insulating compound ......................................................... 280
Figure O.16 – Partitioned bobbin ........................................................................................ 280
Figure O.17 – Materials with different CTI values ................................................................ 281
Figure O.18 – Materials with different CTI values having an air gap of less than X mm ....... 281
Figure O.19 – Materials with different CTI values having an air groove of
less than X mm ................................................................................................................... 282
Figure O.20 – Materials with different CTI values having an air groove not smaller
than X mm .......................................................................................................................... 282
Figure P.1 – Examples of cross-sections of designs of top openings which prevent
vertical entry ....................................................................................................................... 284
Figure P.2 – Examples of cross-sections of designs of side opening louvres which
prevent vertical entry .......................................................................................................... 284
Figure P.3 – Internal volume locus for foreign object entry .................................................. 285
Figure T.1 – Impact test using sphere ................................................................................. 300
Figure V.1 – Jointed test probe for equipment likely to be accessible to children................. 306
Figure V.2 – Jointed test probe for equipment not likely to be accessible to children ........... 307
– 16 – 62368-1 © IEC:2014
Figure V.3 – Blunt probe ..................................................................................................... 308
Figure V.4 – Wedge probe .................................................................................................. 309
Figure V.5 – Terminal probe ............................................................................................... 310
Table 1 – Response to energy class ..................................................................................... 23
Table 2 – Examples of body response or property damage related to energy sources ........... 24
Table 3 – Examples of safeguard characteristics .................................................................. 28
Table 4 – Electrical energy source limits for steady-state ES1 and ES2 ................................ 75
Table 5 – Electrical energy source limits for a charged capacitor .......................................... 77
Table 6 – Voltage limits for single pulses .............................................................................. 78
Table 7 – Current limits for single pulses .............................................................................. 78
Table 8 – Electrical energy source limits for repetitive pulses ............................................... 79
Table 9 – Minimum air gap distance ...................................................................................... 80
Table 10 – Temperature limits for materials, components and systems ................................. 83
Table 11 – Minimum clearances for voltages with frequencies up to 30 kHz .......................... 89
Table 12 – Minimum clearances for voltages with frequencies above 30 kHz ........................ 90
Table 13 – Mains transient voltages ...................................................................................... 91
Table 14 – External circuit transient voltages ........................................................................ 93
Table 15 – Minimum clearances using required withstand voltage......................................... 95
Table 16 – Electric strength test voltages ............................................................................. 96
Table 17 – Multiplication factors for clearances and test voltages ......................................... 96
Table 18 – Minimum creepage distances for basic insulation and supplementary
insulation in mm .................................................................................................................. 100
Table 19 – Minimum values of creepage distances (in mm) for frequencies higher than
30 kHz and up to 400 kHz ................................................................................................... 101
Table 20 – Tests for insulation in non-separable layers ....................................................... 104
Table 21 – Electric field strength E
P
for some commonly used materials ............................ 108
Table 22 – Reduction factors for the value of breakdown electric field strength E
P
at
higher frequencies .............................................................................................................. 109
Table 23 – Reduction factors for the value of breakdown electric field strength E
P
at
higher frequencies for thin materials ................................................................................... 109
Table 24 – Values for insulation resistance ......................................................................... 110
Table 25 – Distance through insulation of internal wiring..................................................... 111
Table 26 – Test voltages for electric strength tests based on transient voltages .................. 113
Table 27 – Test voltages for electric strength tests based on peak working voltages ........... 113
Table 28 – Test voltages for electric strength tests based on temporary overvoltages ......... 114
Table 29 – Test values for electric strength tests ................................................................ 116
Table 30 – Protective earthing conductor sizes for reinforced safeguards for
permanently connected equipment ...................................................................................... 123
Table 31 – Minimum protective bonding conductor size of copper conductors ..................... 124
Table 32 – Sizes of terminals for protective conductors ...................................................... 126
Table 33 – Test duration, mains connected equipment ........................................................ 127
Table 34 – Size and spacing of holes in metal bottoms of fire enclosures ........................... 148
Table 35 – Classification for various categories of mechanical energy sources ................... 151
Table 36 – Overview of requirements and tests ................................................................... 158
62368-1 © IEC:2014 – 17 –
Table 37 – Torque to be applied to screws .......................................................................... 162
Table 38 – Touch temperature limits for accessible parts .................................................... 169
Table 39 – Radiation energy source classifications ............................................................. 171
Table C.1 – Minimum property retention limits after UV exposure ....................................... 189
Table D.1 – Component values for Figure D.1 and Figure D.2 ............................................. 192
Table E.1 – Audio signal electrical energy source classes and safeguards ......................... 194
Table F.1 – Instructional safeguard element description and examples ............................... 203
Table F.2 – Examples of markings, instructions, and instructional safeguards ..................... 204
Table G.1 – Peak surge current .......................................................................................... 206
Table G.2 – Test temperature and testing time (days) per cycle .......................................... 212
Table G.3 – Temperature limits for transformer windings and for motor windings
(except for the motor running overload test) ........................................................................ 215
Table G.4 – Temperature limits for running overload tests .................................................. 217
Table G.5 – Sizes of conductors ......................................................................................... 223
Table G.6– Strain relief test force ....................................................................................... 224
Table G.7 – Varistor overload and temporary overvoltage test ............................................ 228
Table G.8 – Capacitor ratings according to IEC 60384-14 ................................................... 234
Table G.9 – Examples of the application of Y capacitors based on the test voltages of
Table 26 ............................................................................................................................. 235
Table G.10 – Examples of the application of Y capacitors based on the test voltages of
Table 27 ............................................................................................................................. 236
Table G.11 – Examples of the application of Y capacitors based on the test voltages of
Table 28 ............................................................................................................................. 236
Table G.12 – Examples of the application of X capacitors, line to line or line to neutral ...... 237
Table G.13 – Minimum separation distances for coated printed boards ............................... 239
Table G.14 – Insulation in printed boards ............................................................................ 240
Table I.1 – Overvoltage categories ..................................................................................... 251
Table J.1 – Mandrel diameter.............................................................................................. 253
Table J.2 – Oven temperature ............................................................................................. 254
Table M.1 – Values of f
g
and f
s
.......................................................................................... 269
Table O.1 – Value of X ........................................................................................................ 275
Table Q.1 – Limits for inherently limited power sources ...................................................... 290
Table Q.2 – Limits for power sources not inherently limited (overcurrent protective
device required) .................................................................................................................. 29
1
Table S.1 – Foamed materials ............................................................................................ 297
Table S.2 – Rigid materials ................................................................................................. 297
Table S.3 – Very thin materials ........................................................................................... 297
Table T.1 – Impact force ..................................................................................................... 301
Table T.2 – Torque values for end-piece test ...................................................................... 302
Table W.1 – Comparison of terms and definitions in IEC 60664-1:2007 and
IEC 62368-1 ....................................................................................................................... 311
Table W.2 – Comparison of terms and definitions in IEC 61140:2001 and IEC 62368-1 ...... 313
Table W.3 – Comparison of terms and definitions in IEC 60950-1:2005 and
IEC 62368-1 ....................................................................................................................... 316
Table W.4 – Comparison of terms and definitions in IEC 60728-11 and IEC 62368-1 .......... 319
– 18 – 62368-1 © IEC:2014
Table W.5 – Comparison of terms and definitions in IEC 62151 and IEC 62368-1 ............... 320
Table W.6 – Comparison of terms and definitions in IEC 60065 and IEC 62368-1 ............... 321
62368-1 © IEC:2014 – 19 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
AUDIO/VIDEO, INFORMATION AND COMMUNICATION
TECHNOLOGY EQUIPMENT –
Part 1: Safety 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.
5) IEC itself does not provide any attestation of conformity. Independent certification bodies provide conformity
assessment services and, in some areas, access to IEC marks of conformity. IEC is not responsible for any
services carried out by independent certification bodies.
6) All users should ensure that they have the latest edition of this publication.
7) No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and
members of its technical committees and IEC National Committees for any personal injury, property damage or
other damage of any nature whatsoever, whether direct or indirect, or for costs (including legal fees) and
expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC
Publications.
8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is
indispensable for the correct application of this publication.
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.
International Standard IEC 62368-1 has been prepared by TC 108: Safety of electronic
equipment within the field of audio/video, information technology and communication
technology.
This second edition cancels and replaces the first edition published in 2010. It constitutes a
technical revision.
This edition includes the following significant technical changes with respect to the previous
edition:
– addition of requirements for LEDs;
– new requirements for wall and ceiling mounting means;
– addition of acoustic shock requirements for personal music players;
– revision of the battery requirements, including new requirements for coin / button cell batteries;
–
revision of the burn requirements.
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