UL 60950-22-2017 UL Standard for Safety Information Technology Equipment C Safety C Part 22 Equipment to be Installed Outdoors (Second Edition).pdf

1、UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL UL 60950-22 Information Technology Equipment Safety Part 22: Equipment to be Installed Outdoors STANDARD FOR SAFETYUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTIO

2、N WITHOUT PERMISSION FROM ULUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL UL Standard for Safety of Information Technology Equipment Safety Part 22: Equipment to be Installed Outdoors, UL 60950-22 Second Edition, Dated March 31, 2017 Summa

3、ry of Topics This new edition of ANSI/UL 60950-22 is being issued to update requirements to those published in IEC 60950-22, second edition. Technical changes to the IEC Standard have been incorporated into the new edition of the UL Standard. National Differences from the First Edition of UL 60950-2

4、2 were reviewed and updated in the new edition. UL 60950-22 is an adoption of IEC 60950-22, Information Technology Equipment Safety Part 22: Equipment to be Installed Outdoors (Second Edition, issued January 2016). Please note that the National Difference document incorporates all of the U.S. nation

5、al differences for UL 60950-22. The new and revised requirements are substantially in accordance with Proposal(s) on this subject dated September 30, 2016. All rights reserved. No part of this publication may be reproduced, stored in a retrieval system, or transmitted in any form by any means, elect

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9、ty, damage, claim, or judgment (including reasonable attorneys fees) resulting from any error or deviation introduced while purchaser is storing an electronic Standard on the purchasers computer system. MARCH 31, 2017 UL 60950-22 tr1UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR

10、DISTRIBUTION WITHOUT PERMISSION FROM UL MARCH 31, 2017 UL 60950-22 tr2 No Text on This PageUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL Information Technology Equipment Safety Part 22: Equipment to be Installed Outdoors March 31, 2017 Thi

11、s national standard is based on publication IEC 60950-22, Second Edition (2016). CSA Group CAN/CSA-C22.2 No. 60950-22:17 Second Edition (IEC 60950-22:2017, MOD) Approved by Underwriters Laboratories Inc. UL 60950-22 Second Edition ANSI/UL 60950-22-2017UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTH

12、ER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL Commitment for Amendments This standard is issued jointly by the Canadian Standards Association (operating as “CSA Group”) and Underwriters Laboratories Inc. (UL). Comments or proposals for revisions on any part of the standard may be submit

13、ted to CSA Group or UL at any time. Revisions to this standard will be made only after processing according to the standards development procedures of CSA Group and UL. CSA Group and UL will issue revisions to this standard by means of a new edition or revised or additional pages bearing their date

14、of issue. _ All rights reserved. No part of this publication may be reproduced in any form whatsoever without the prior permission of the publisher. This Standard is subject to review within ve years from the date of publication, and suggestions for its improvement will be referred to the appropriat

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17、rds and all copyrights, ownerships, and rights regarding those Standards shall remain the sole and exclusive property of UL. This ANSI/UL Standard for Safety consists of the Second Edition. The most recent designation of ANSI/UL 60950-22 as an American National Standard (ANSI) occurred on March 31,

18、2017. ANSI approval for a standard does not include the Cover Page, Transmittal Pages, Title Page (front and back), or the Preface. The National Difference Page and IEC Foreword are also excluded from the ANSI approval of IEC-based standards. Comments or proposals for revisions on any part of the St

19、andard may be submitted to UL at any time. Proposals should be submitted via a Proposal Request in ULs On-Line Collaborative Standards Development System (CSDS) at https:/. To purchase UL Standards, visit Comm 2000 at http:/m- HowToOrder.aspx or call toll-free 1-888-853-3503. ISBN 978-1-4883-0706-5

20、Copyright 2017 CSA Group All rights reserved. No part of this publication may be reproduced in any form whatsoever without the prior permission of the publisher. Copyright 2017 Underwriters Laboratories Inc.UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMI

21、SSION FROM UL CONTENTS PREFACE 5 FOREWORD . 8 INTRODUCTION . 11 1 Scope .12 1.1 Equipment covered .12 1.2 Additional requirements 12 2 Normative references 12 3 Terms and denitions 14 4 Conditions for outdoor equipment .14 4.1 Ambient air temperature .14 4.2 Mains supply .15 4.3 Rise of earth potent

22、ial .16 5 Marking and instructions .16 6 Protection from electrical shock in an outdoor location .17 6.1 Voltage limits of user-accessible parts in outdoor locations 17 6.2 Limited current circuits in outdoor locations 17 6.3 Protection for socket-outlet in outdoor locations 17 7 Wiring terminals fo

23、r connection of external conductors .18 8 Construction requirements for outdoor enclosures .18 8.1 General 18 8.2 Resistance to ultra-violet radiation 19 8.3 Resistance to corrosion 20 8.4 Bottoms of re enclosures .21 8.5 Gaskets .21 9 Protection of equipment within an outdoor enclosure 22 9.1 Prote

24、ction from moisture .22 9.2 Protection from plants and vermin 23 9.3 Protection from excessive dust .24 10 Mechanical strength of enclosures .25 10.1 General 25 10.2 Impact test 25 11 Outdoor equipment containing valve regulated or vented batteries .26 11.1 Risk of explosion from lead acid, NiCd and

25、 NiMH batteries .26 11.2 Ventilation preventing an explosive gas concentration 27 11.3 Ventilation test 28 Annex A (normative) Water-saturated sulphur dioxide atmosphere (see 8.3.2 and 8.3.3) Annex B (normative) Water spray test (see 9.1) Annex C (normative) Ultraviolet light conditioning test (see

26、8.2) C.1 Test apparatus 33 C.2 Mounting of test samples .33 MARCH 31, 2017 CAN/CSA-C22.2 NO. 60950-22:17 UL 60950-22 3 DEUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL C.3 Carbon-arc light-exposure apparatus 33 C.4 Xenon-arc light-exposure

27、apparatus .33 Annex D (normative) Gasket tests (see 8.5) D.1 Gasket tests 34 D.2 Tensile strength and elongation tests 34 D.3 Compression test .34 D.4 Oil immersion test .35 Annex E (informative) Rationale E.1 General 37 E.2 Electric shock .37 E.3 Energy related hazards 38 E.4 Fire 38 E.5 Mechanical

28、 hazards .38 E.6 Heat related hazards 38 E.7 Radiation .39 E.8 Chemical hazards .39 E.9 Biological hazards .39 E.10 Explosion hazards 39 Annex NAE (informative) U.S. and Canadian regulatory requirements Bibliography MARCH 31, 2017 CAN/CSA-C22.2 NO. 60950-22:17 UL 60950-22 4 D1UL COPYRIGHTED MATERIAL

29、 NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL PREFACE This is the harmonized CSA and UL Standard for Information Technology Equipment Safety Part 22: Equipment to be Installed Outdoors. It is the second edition of CAN/CSA-C22.2 No. 60950-22 and the second editio

30、n of UL 60950-22. This edition of CAN/CSA-C22.2 No. 60950-22 supersedes the previous edition published on April 23, 2007. This edition of UL 60950-22 supersedes the previous edition published on April 23, 2007. This harmonized standard is based on IEC Publication 60950-22: second edition, Informatio

31、n Technology Equipment Safety Part 22: Equipment to be Installed Outdoors, issued January 2016. IEC 60950-22 is copyrighted by the IEC. This harmonized standard was prepared by CSA Group and Underwriters Laboratories Inc. (UL). The efforts and support of representatives of leading industry companies

32、 and organizations are gratefully acknowledged. This Standard is considered suitable for use for conformity assessment within the stated scope of the Standard. This Standard was reviewed by the CSA Subcommittee on Safety of Electronic Equipment within the Field of Audio/Video, Information, and Commu

33、nication Technology, under the jurisdiction of the CSA Technical Committee on Consumer and Commercial Products and the CSA Strategic Steering Committee on Requirements for Electrical Safety, and has been formally approved by the CSA Technical Committee. This standard has been approved as a National

34、Standard of Canada by the Standards Council of Canada (SCC). This Standard has been approved by the American National Standards Institute (ANSI) as an American National Standard. Application of Standard Where reference is made to a specic number of samples to be tested, the specied number is to be c

35、onsidered a minimum quantity. Note: Although the intended primary application of this standard is stated in its scope, it is important to note that it remains the responsibility of the users of the standard to judge its suitability for their particular purpose. Level of harmonization This standard a

36、dopts the IEC text with national differences. This standard is published as an equivalent standard for CSA Group and UL. An equivalent standard is a standard that is substantially the same in technical content, except as follows: Technical national differences are allowed for codes and governmental

37、regulations as well as those recognized as being in accordance with NAFTA Article 905, for example, because of fundamental climatic, geographical, technological, or infrastructural factors, scientic justication, or the level of protection that the country considers appropriate. Presentation is word

38、for word except for editorial changes. MARCH 31, 2017 CAN/CSA-C22.2 NO. 60950-22:17 UL 60950-22 5 DE DE DE DE DE DE DE DE DE DE DE DE DE DE DE DE DE DE DE DE DE DE DE DE DE DE DE DE DE DE DE DE DE DE DE DE DEUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERM

39、ISSION FROM UL All national differences from the IEC text are included in the CSA Group and UL versions of the standard. While the technical content is the same in each organizations version, the format and presentation may differ. Reasons for differences from IEC The national differences in this bi

40、national Part 22 Standard are included to reference the binational version of IEC 60950-1, which is designated as CAN/CSA-C22.2 No. 60950-1/UL 60950-1, to address issues related to references to the rst and second editions of CSA/UL 60950-1, and to address additional requirements for lightning strik

41、es (Clauses 1 and 2), components used to reduce the overvoltage category (Clause 4), markings (Clause 5), national codes related to wiring (Clause 7), additional requirements for resistance to UV radiation, corrosion, and testing of gasket materials (Clause 8), protection from excessive dust (Clause

42、 9), and U.S. and Canadian regulatory requirements (Annex NAE). Interpretations The interpretation by the standards development organization of an identical or equivalent standard is based on the literal text to determine compliance with the standard in accordance with the procedural rules of the st

43、andards development organization. If more than one interpretation of the literal text has been identied, a revision is to be proposed as soon as possible to each of the standards development organizations to more accurately reect the intent. IEC Copyright For CSA Group, the text, gures, and tables o

44、f International Electrotechnical Commission Publication 60950-22, Information Technology Equipment Safety Part 22: Equipment to be Installed Outdoors, copyright 2016, are used in this standard with the consent of the International Electrotechnical Commission. The IEC Foreword and Introduction are no

45、t a part of the requirements of this standard but are included for information purposes only. These materials are subject to copyright claims of IEC and UL. No part of this publication may be reproduced in any form, including an electronic retrieval system, without the prior written permission of UL

46、. All requests pertaining to the Information Technology Equipment Safety Part 22: Equipment to be Installed Outdoors, UL 60950-22 Standard should be submitted to UL. General National differences from the text of the International Electrotechnical Commission (IEC) Publication 60950-22, Information Te

47、chnology Equipment Safety Part 22: Equipment to be installed outdoors, Copyright 2016, are indicated by the following margin notations: There are six types of national differences, as noted below. The national difference type is noted in the margin next to the affected text. The standard may not inc

48、lude all types of these national differences. D1 national differences based on national regulatory requirements which result in equivalent or more stringent requirements than in IEC 60950-22. D2 national differences based on other than national regulatory requirements which result in equivalent or m

49、ore stringent requirements than in IEC 60950-22. MARCH 31, 2017 CAN/CSA-C22.2 NO. 60950-22:17 UL 60950-22 6 DE DE DE DE DE DE DE DE DE DE DE DE DE DE DE DE DE DE DE DE DE DE DE DE DE DE DE DE DE DE DE DE DE DE DE DE DE DE DE DEUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL D