IEC 60950-22-2016 Information technology equipment - Safety - Part 22 Equipment to be installed outdoors《信息技术设备.安全.第22部分 室外安装设备》.pdf

1、 IEC 60950-22 Edition 2.0 2016-01 INTERNATIONAL STANDARD NORME INTERNATIONALE Information technology equipment Safety Part 22: Equipment to be installed outdoors Matriels de traitement de linformation Scurit Partie 22: Matriels destins tre installs lextrieur IEC 60950-22:2016-01(en-fr) THIS PUBLICAT

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19、tte publication ou si vous avez des questions contactez-nous: csciec.ch. IEC 60950-22 Edition 2.0 2016-01 INTERNATIONAL STANDARD NORME INTERNATIONALE Information technology equipment Safety Part 22: Equipment to be installed outdoors Matriels de traitement de linformation Scurit Partie 22: Matriels

20、destins tre installs lextrieur INTERNATIONAL ELECTROTECHNICAL COMMISSION COMMISSION ELECTROTECHNIQUE INTERNATIONALE ICS 29.020; 35.020 ISBN 978-2-8322-3108-1 Registered trademark of the International Electrotechnical Commission Marque dpose de la Commission Electrotechnique Internationale Warning! M

21、ake sure that you obtained this publication from an authorized distributor. Attention! Veuillez vous assurer que vous avez obtenu cette publication via un distributeur agr. 2 IEC 60950-22:2016 IEC 2016 CONTENTS FOREWORD . 4 INTRODUCTION . 6 1 Scope 7 1.1 Equipment covered . 7 1.2 Additional requirem

22、ents 7 2 Normative references 7 3 Terms and definitions 8 4 Conditions for outdoor equipment 8 4.1 Ambient air temperature 8 4.2 Mains supply . 9 4.2.1 General . 9 4.2.2 Mains transient voltage on AC mains supply 9 4.2.3 Mains transient voltage on DC mains supply 9 4.3 Rise of earth potential . 10 5

23、 Marking and instructions 10 6 Protection from electrical shock in an outdoor location 10 6.1 Voltage limits of user-accessible parts in outdoor locations . 10 6.2 Limited current circuits in outdoor locations 10 6.3 Protection for socket-outlet in outdoor locations 10 7 Wiring terminals for connect

24、ion of external conductors 11 8 Construction requirements for outdoor enclosures . 11 8.1 General . 11 8.2 Resistance to ultra-violet radiation 11 8.3 Resistance to corrosion 12 8.3.1 General . 12 8.3.2 Test apparatus 12 8.3.3 Test procedure 13 8.3.4 Compliance criteria 13 8.4 Bottoms of fire enclos

25、ures. 13 8.5 Gaskets 13 8.5.1 General . 13 8.5.2 Oil resistance 14 8.5.3 Securing means . 14 9 Protection of equipment within an outdoor enclosure . 14 9.1 Protection from moisture . 14 9.2 Protection from plants and vermin . 15 9.3 Protection from excessive dust . 15 9.3.1 General . 15 9.3.2 IP5X e

26、quipment . 15 9.3.3 IP6X equipment . 16 10 Mechanical strength of enclosures . 16 10.1 General . 16 10.2 Impact test 16 11 Outdoor equipment containing valve regulated or vented batteries 16 IEC 60950-22:2016 IEC 2016 3 11.1 Risk of explosion from lead acid, NiCd and NiMH batteries . 16 11.2 Ventila

27、tion preventing an explosive gas concentration 17 11.3 Ventilation test 19 Annex A (normative) Water-saturated sulphur dioxide atmosphere (see 8.3.2 and 8.3.3 20 Annex B (normative) Water spray test (see 9.1) . 21 Annex C (normative) Ultraviolet light conditioning test (see 8.2) . 24 C.1 Test appara

28、tus 24 C.2 Mounting of test samples 24 C.3 Carbon-arc light-exposure apparatus 24 C.4 Xenon-arc light-exposure apparatus 24 Annex D (normative) Gasket tests (see 8.5) . 25 D.1 Gasket tests 25 D.2 Tensile strength and elongation tests 25 D.3 Compression test 25 D.4 Oil immersion test . 26 Annex E (in

29、formative) Rationale . 27 E.1 General . 27 E.2 Electric shock . 27 E.3 Energy related hazards . 27 E.4 Fire . 27 E.5 Mechanical hazards 28 E.6 Heat related hazards . 28 E.7 Radiation 28 E.8 Chemical hazards . 28 E.9 Biological hazards . 28 E.10 Explosion hazards. 29 Bibliography 30 Figure B.1 Water-

30、spray test spray-head piping . 22 Figure B.2 Water-spray test spray head . 23 Figure D.1 Gasket test . 26 Table 1 Minimum property retention limits after UV exposure . 12 Table 2 Examples of the provision of pollution degree environments 14 Table 3 Values for current I floatand I boost , factors f g

31、and f s , and voltages U floatand U boost. 18 4 IEC 60950-22:2016 IEC 2016 INTERNATIONAL ELECTROTECHNICAL COMMISSION _ INFORMATION TECHNOLOGY EQUIPMENT SAFETY Part 22: Equipment to be installed outdoors FOREWORD 1) The International Electrotechnical Commission (IEC) is a worldwide organization for s

32、tandardization 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

33、 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 parti

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38、ng 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 se

39、rvices 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 N

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41、n 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 s

42、hall not be held responsible for identifying any or all such patent rights. International Standard IEC 60950-22 has been prepared by IEC TC 108: Safety of electronic equipment within the field of audio/video, information technology and communication technology. This second edition cancels and replac

43、es the first edition published in 2005. It constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: more extensive requirements for battery ventilation. IEC 60950-22:2016 IEC 2016 5 The text of this standard is based on

44、 the following documents: FDIS Report on voting 108/615/FDIS 108/634/RVD Full information on the voting for the approval of this standard can be found in the report on voting indicated in the above table. This publication has been drafted in accordance with the ISO/IEC Directives, Part 2. This Part

45、22 of IEC 60950 is intended to be used with IEC 60950-1:2005. The subclauses of IEC 60950-1 apply as far as reasonable. Where safety aspects are similar to those of Part 1 the relevant Part 1 clause or subclause is shown for reference in parentheses after the clause or subclause title in Part 22. Wh

46、ere a requirement in Part 22 refers to a requirement or criterion of Part 1, a specific reference to IEC 60950-1, is made. A list of all parts in the IEC 60950 series, published under the general title Information technology equipment Safety, can be found on the IEC website. In this standard, the fo

47、llowing print types are used: requirements proper and normative annexes: roman type; compliance statements and test specifications: italic type; notes in the text and in tables: smaller roman type; terms that are defined on Clause 3 and in IEC 60950-1: SMALL CAPITALS. The following differing practic

48、es of a less permanent nature exist in the countries indicated below. 4.1: Outdoor equipment demand special design at temperatures down to 50 C (Finland, Norway, Sweden) 4.3: Rise of earth potential requirements (USA, Canada) 8.5.1: Enclosure types specifications (USA, Canada). D.4: In Canada and Un

49、ited States, IRM Immersion Oil No. 903 is accepted (USA, Canada). The committee has decided that the contents of this publication will remain unchanged until the stability date indicated on the IEC website under “http:/webstore.iec.ch“ in the data related to the specific publication. At this date, the publication will be reconfirmed, withdrawn, replaced by a revised edition, or ame