CSA C22 2 NO 223-2015 Power supplies with extra-low-voltage Class 2 outputs (Third Edition).pdf

1、C22.2 No. 223-15Power supplies with extra-low-voltage Class 2 outputsLegal Notice for Draft StandardsCanadian Standards Association (operating as “CSA Group”) standards are developed through a consensus standards development process approved by the Standards Council of Canada. This process brings to

2、gether volunteers representing varied viewpoints and interests to achieve consensus and develop a standard. Although CSA Group administers the process and establishes rules to promote fairness in achieving consensus, it does not independently test, evaluate, or verify the content of standards. Durin

3、g this process, CSA Group makes the draft standard available for comment, review, and approval.Disclaimer and exclusion of liabilityThis is a draft document for the purpose of comment, review, and approval only. This document is provided without any representations, warranties, or conditions of any

4、kind, express or implied, including, without limitation, implied warranties or conditions concerning this documents fitness for a particular purpose or use, its merchantability, or its non-infringement of any third partys intellectual property rights. CSA Group does not warrant the accuracy, complet

5、eness, or currency of any of the information published in this document. CSA Group makes no representations or warranties regarding this documents compliance with any applicable statute, rule, or regulation.IN NO EVENT SHALL CSA GROUP, ITS VOLUNTEERS, MEMBERS, SUBSIDIARIES, OR AFFILIATED COMPANIES,

6、OR THEIR EMPLOYEES, DIRECTORS, OR OFFICERS, BE LIABLE FOR ANY DIRECT, INDIRECT, OR INCIDENTAL DAMAGES, INJURY, LOSS, COSTS, OR EXPENSES, HOWSOEVER CAUSED, INCLUDING BUT NOT LIMITED TO SPECIAL OR CONSEQUENTIAL DAMAGES, LOST REVENUE, BUSINESS INTERRUPTION, LOST OR DAMAGED DATA, OR ANY OTHER COMMERCIAL

7、 OR ECONOMIC LOSS, WHETHER BASED IN CONTRACT, TORT (INCLUDING NEGLIGENCE), OR ANY OTHER THEORY OF LIABILITY, ARISING OUT OF OR RESULTING FROM ACCESS TO OR POSSESSION OR USE OF THIS DOCUMENT, EVEN IF CSA GROUP HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES, INJURY, LOSS, COSTS, OR EXPENSES.In pu

8、blishing and making this document available, CSA Group is not undertaking to render professional or other services for or on behalf of any person or entity or to perform any duty owed by any person or entity to another person or entity. The information in this document is directed to those who have

9、the appropriate degree of experience to use and apply its contents, and CSA Group accepts no responsibility whatsoever arising in any way from any and all use of or reliance on the information contained in this document.CSA Group is a private not-for-profit company that publishes voluntary standards

10、 and related documents. CSA Group has no power, nor does it undertake, to enforce compliance with the contents of the standards or other documents it publishes.Intellectual property rights and ownershipAs between CSA Group and the users of this document (whether it be in printed or electronic form),

11、 CSA Group is the owner, or the authorized licensee, of all works contained herein that are protected by copyright, all trade-marks (except as otherwise noted to the contrary), and all inventions and trade secrets that may be contained in this document, whether or not such inventions and trade secre

12、ts are protected by patents and applications for patents. Without limitation, the unauthorized use, modification, copying, or disclosure of this document may violate laws that protect CSA Groups and/or others intellectual property and may give rise to a right in CSA Group and/or others to seek legal

13、 redress for such use, modification, copying, or disclosure. To the extent permitted by licence or by law, CSA Group reserves all intellectual property rights in this document.Patent rightsAttention is drawn to the possibility that some of the elements of this standard may be the subject of patent r

14、ights. CSA Group shall not be held responsible for identifying any or all such patent rights. Users of this standard are expressly advised that determination of the validity of any such patent rights is entirely their own responsibility.Assignment of copyrightA user who provides a comment to CSA Gro

15、up in relation to this document agrees that the entire copyright in the comment is hereby assigned to CSA Group and waives all associated moral rights, such that CSA Group is the exclusive owner of such comment and may use such comment as it sees fit. The user, being the sole owner of the copyright

16、or having the authority to assign the copyright on behalf of his or her employer, confirms his or her ability to assign the copyright in a comment provided to CSA Group.Authorized use of this documentThis document is being provided by CSA Group for informational and non-commercial use only. The user

17、 of this document is authorized to do only the following:If this document is in electronic form: load this document onto a computer for the sole purpose of reviewing it; search and browse this document; and print this document if it is in PDF format.Limited copies of this document in print or paper

18、form may be distributed only to persons who are authorized by CSA Group to have such copies, and only if this Legal Notice appears on each such copy.In addition, users may not and may not permit others to alter this document in any way or remove this Legal Notice from the attached draft standard; se

19、ll this document without authorization from CSA Group; or make an electronic copy of this document.If you do not agree with any of the terms and conditions contained in this Legal Notice, you may not load or use this document or make any copies of the contents hereof, and if you do make such copies,

20、 you are required to destroy them immediately. Use of this document constitutes your acceptance of the terms and conditions of this Legal Notice.Standards Update ServiceC22.2 No. 223-15December 2015Title: Power supplies with extra-low-voltage Class 2 outputsTo register for e-mail notification about

21、any updates to this publication go to shop.csa.ca click on CSA Update ServiceThe List ID that you will need to register for updates to this publication is 2423966.If you require assistance, please e-mail techsupportcsagroup.org or call 416-747-2233.Visit CSA Groups policy on privacy at www.csagroup.

22、org/legal to find out how we protect your personal information.ISBN 978-1-4883-0091-2 2015 CSA Group All rights reserved. No part of this publication may be reproduced in any form whatsoever without the prior permission of the publisher.Published in December 2015 by CSA Group A not-for-profit privat

23、e sector organization 178 Rexdale Boulevard, Toronto, Ontario, Canada M9W 1R3 To purchase standards and related publications, visit our Online Store at shop.csa.caor call toll-free 1-800-463-6727 or 416-747-4044.TMA trade-mar k of the Canadian S tandards Association, operating as “CSA Group”Power su

24、pplies with extra-low- voltage Class 2 outputsC22.2 No. 223-15C22.2 No. 223-15Power supplies with extra-low-voltage Class 2 outputsDecember 2015 2015 CSA Group 1ContentsTechnical Committee on Industrial Products 3Subcommittee on Extra-Low Voltage Direct Plug-in and Cord Connected Transformers and Re

25、ctifiers 6Preface 71 Scope 82 Reference publications 93 Definitions 114 Construction 114.1 General requirements 114.2 General 124.3 Sources of fire hazard 134.4 Enclosures 134.4.1 General 134.4.8 Protection against access to live parts 144.4.9 Outdoor use enclosures 144.5 Mechanical assembly 154.6 S

26、upply connections 164.6.1 Direct plug-in power supplies 164.6.2 Cord-connected power supplies 164.7 Internal wiring 184.8 Electrical insulating materials 184.9 Transformers and magnetic components 184.10 Switches 204.11 Electrical spacings 204.12 Output connections 214.13 Strain relief and blade ret

27、ention 224.14 Maximum output voltage 234.15 Provisions for limiting output current 234.16 Secondary circuit protection 234.17 Grounding and bonding 234.18 Printed wiring boards 244.19 Gaskets 244.20 Ground-fault circuit-interrupters 244.21 Backfeed protection 255 Marking 255.8 Power supplies suitabl

28、e for outdoor use 275.8.4 Instructions for power supply suitable for outdoor use 286 Tests 296.1 General 296.2 Test conditions 29C22.2 No. 223-15Power supplies with extra-low-voltage Class 2 outputsDecember 2015 2015 CSA Group 26.2.1 Voltage 296.2.2 Frequency 296.2.3 Ambient temperature 296.2.4 Load

29、 296.2.5 Method of measurement 306.3 Rating 306.3.1 Open-circuit secondary voltage 306.3.2 Rated input 316.3.3 Rated output 316.3.4 Maximum output current and power 316.4 Temperature (normal) 336.5 Dielectric strength 336.5.1 Primary circuit 336.5.2 Secondary circuit 346.5.3 Transformers 346.6 Leaka

30、ge current 346.7 Secondary circuit protection 356.8 Abnormal 366.9 Drop and impact 386.10 Strain relief and blade retention 396.11 Overload and endurance (primary circuit switches) 406.11.1 General 406.11.2 Overload 406.11.3 Endurance 416.12 Securement of components 416.13 Securement of removable, f

31、olding, or retractable blades 416.13.1 Folding or retractable blades 416.13.2 Removable blades 416.13.3 Blade test conclusion 416.14 Insulating material 416.15 Compression (rod) 416.16 Deformation (non-metallic enclosures) 426.17 Rain 426.18 Water immersion 436.19 UV Exposure Conditioning 43C22.2 No

32、. 223-15Power supplies with extra-low-voltage Class 2 outputsDecember 2015 2015 CSA Group 3Technical Committee on Industrial ProductsR.M. Bartholomew Electric Power Equipment Ltd., Vancouver, British Columbia Category: Producer InterestChairR.P. de Lhorbe Schneider Electric Canada, Inc., Richmond, B

33、ritish Columbia Category: Producer InterestVice-ChairB.M. Baldwin Saskatoon, Saskatchewan Category: Producer InterestW.J. Bryans Electro-Federation Canada, Toronto, Ontario AssociateR.B. Buckler ASCO Power Technologies Canada, Brantford, Ontario AssociateW.J. Burr Burr and Associates, Campbell River

34、, British Columbia AssociateC.C. Cormier Alberta Municipal Affairs, Edmonton, Alberta Category: Regulatory AuthorityP.D. den Bakker Shell Global Solutions Canada, Calgary, Alberta AssociateS.W. Douglas International Association of Electrical Inspectors, Toronto, Ontario AssociateJ.H. Dymond Peterbor

35、ough, Ontario AssociateV.V. Gagachev Eaton, Burlington, Ontario Category: Producer InterestR.J. Kelly Government of Nunavut-Dept. of Community Interim Certification Requirements for Direct Plug-in and Cord-Connected Power Supplies with Extra-Low-Voltage Class 2 Output for Outdoor Use.For general inf

36、ormation on Standards of the Canadian Electrical Code, Part II, see the preface of CAN/CSA-C22.2 No. 0, General Requirements Canadian Electrical Code, Part II.This Standard is considered suitable for use for conformity assessment within the stated scope of the Standard.This Standard was prepared by

37、a Subcommittee on Extra-Low Voltage Direct Plug-in and Cord Connected Transformers and Rectifiers under the jurisdiction of the Technical Committee on Industrial Products and the Standards Steering Committee on Canadian Electrical Code, Part II and has been formally approved by the Technical Committ

38、ee.Interpretations: The Strategic Steering Committee on Requirements for Electrical Safety has provided the following direction for the interpretation of standards under its jurisdiction: “The literal text shall be used in judging compliance of products with the safety requirements of this Standard.

39、 When the literal text cannot be applied to the product, such as for new materials or construction, and when a relevant committee interpretation has not already been published, CSA Groups procedures for interpretation shall be followed to determine the intended safety principle.”Notes: 1) Use of the

40、 singular does not exclude the plural (and vice versa) when the sense allows.2) 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 pur

41、pose.3) This Standard was developed by consensus, which is defined by CSA Policy governing standardization Code of good practice for standardization as “substantial agreement. Consensus implies much more than a simple majority, but not necessarily unanimity”. It is consistent with this definition th

42、at a member may be included in the Technical Committee list and yet not be in full agreement with all clauses of this Standard.4) To submit a request for interpretation of this Standard, please send the following information to inquiriescsagroup.org and include “Request for interpretation” in the su

43、bject line: a) define the problem, making reference to the specific clause, and, where appropriate, include an illustrative sketch;b) provide an explanation of circumstances surrounding the actual field condition; andc) where possible, phrase the request in such a way that a specific “yes” or “no” a

44、nswer will address the issue. Committee interpretations are processed in accordance with the CSA Directives and guidelines governing standardization and are available on the Current Standards Activities page at standardsactivities.csa.ca.5) This Standard is subject to review five years from the date

45、 of publication. Suggestions for its improvement will be referred to the appropriate committee. To submit a proposal for change, please send the following information to inquiriescsagroup.organd include “Proposal for change” in the subject line: a) Standard designation (number);b) relevant clause, t

46、able, and/or figure number;c) wording of the proposed change; andd) rationale for the change.C22.2 No. 223-15Power supplies with extra-low-voltage Class 2 outputsDecember 2015 2015 CSA Group 8C22.2 No. 223-15Power supplies with extra-low-voltage Class 2 outputs1 Scope1.1 This Standard applies toa) i

47、ndoor and outdoor use Class 2 power supplies with input power of 660 W or less. These units are of both the direct plug-in and cord-connected types that utilize a step-down, isolating transformer and that may incorporate rectifiers and other components to provide an ac or dc output;b) Class 2 power

48、supplies as in Item a) employed as battery chargers for rechargeable batteries; and Note: For convenience, the term “power supply” may be used throughout this Standard.c) identified Class 2 outputs or extra-low voltage outputs of products covered by other standards. For example, permanently connecte

49、d units covered by CSA C22.2 No. 107.1.This Standard also provides direct plug-in requirements for products covered by other standards.1.2 This Standard applies to power supplies intended for use in non-hazardous locations in accordance with the Rules of the Canadian Electrical Code, Part I, when connected to a nominal system voltage of 120 V or 240 V supply. In addition, this Standard applies to permanently connected power supplies intended for use in Class 2 lighting systems for a nominal system voltage up to 600 V.1.3 These requirements do not cover the effec