ANSI UL 2158-1997 UL Standard for Safety Electric Clothes Dryers (Second Edition Reprint with Revisions Through and Including March 20 2009 Remains Current).pdf

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1、UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULUL 2158Electric Clothes DryersUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCT

2、ION ORDISTRIBUTION WITHOUT PERMISSION FROM ULUnderwriters Laboratories Inc. (UL)333 Pfingsten RoadNorthbrook, IL 60062-2096UL Standard for Safety for Electric Clothes Dryers, UL 2158Second Edition, Dated June 1, 1997Revisions: This Standard contains revisions through and including March 20, 2009.Sum

3、mary of TopicsRevisions were issued to incorporate the proposals dated October 13, 2006, June 6, 2008 andNovember 21, 2008. These proposals add fire containment requirements.UL Standards for Safety are developed and maintained in the Standard Generalized Markup Language(SGML). SGML - an internationa

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5、uirements have been changed) may be included in revision pages dueto relocation of existing text and reformatting of the Standard.Except for the Preface, text that has been changed in any manner is marked with a vertical line in themargin. Changes in requirements are marked with a vertical line in t

6、he margin and the date on whichrequirements with a future effective date become effective is given in the Preface.The following table lists the future effective dates with the corresponding reference.Future Effective Date ReferencesApril 30, 2009 Clauses 7.3.2 and 7.3.2AMarch 20, 2013 Clauses 2.7A,

7、4.6.1, 19.6, 19.7, and Figure 8In the revisions dated May 24, 2004, pages 11 and 12 have been intentionally deleted from the Standarddue to the deletion or relocation of text. Please discard any previous versions of these pages from yourpaper copy of the Standard.The new and revised requirements are

8、 substantially in accordance with ULs Proposal(s) on this subjectdated October 13, 2006, June 6, 2008, and November 21, 2008.The revisions dated March 20, 2009 include a reprinted title page (page1) for this Standard.As indicated on the title page (page 1), this UL Standard for Safety is an American

9、 National Standard.Attention is directed to the note on the title page of this Standard outlining the procedures to be followedto retain the approved text of this ANSI/UL Standard.The UL Foreword is no longer located within the UL Standard. For information concerning the use andapplication of the re

10、quirements contained in this Standard, the current version of the UL Foreword islocated on ULStandardsInfoNet at: http:/ 20, 2009 UL 2158 tr1UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULThe master for this Standard at ULs Northbrook Office

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21、access.If a multiple-user version electronic Standard was purchased, one copy of the Standard may be stored ona single LAN file-server, or on the permanent storage device of a multiple-user computer, or on an Intranetserver. The number of concurrent users shall not exceed the number of users authori

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23、MARCH 20, 2009 UL 2158tr2UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULauthorized user of a multiple-user version of an electronic Standard. Because of differences in thecomputer/software/printer setup used by UL and those of electronic Stan

24、dards purchasers, the printedcopy obtained by a purchaser may not look exactly like the on-line screen view or the printed Standard.An employee of an organization purchasing a UL Standard can make a copy of the page or pages beingviewed for their own fair and/or practical internal use.The requiremen

25、ts in this Standard are now in effect, except for those paragraphs, sections, tables, figures,and/or other elements of the Standard having future effective dates as indicated in the preface. The priortext for requirements that have been revised and that have a future effective date are located after

26、 theStandard, and are preceded by a SUPERSEDED REQUIREMENTS notice.New product submittals made prior to a specified future effective date will be judged under all of therequirements in this Standard including those requirements with a specified future effective date, unlessthe applicant specifically

27、 requests that the product be judged under the current requirements. However, ifthe applicant elects this option, it should be noted that compliance with all the requirements in thisStandard will be required as a condition of continued Listing and Follow-Up Services after the effectivedate, and unde

28、rstanding of this should be signified in writing.Copyright 2009 Underwriters Laboratories Inc.MARCH 20, 2009 UL 2158 tr3UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULThis Standard consists of pages dated as shown in the following checklist:P

29、age Date1-4March 20, 20095May24,20046-7March 20, 20098-10 .October 30, 200713 May24,200414-14B March 20, 200915-17 June 1, 199718-20B May24,200421-22B March 20, 200923-28B May24,200429.June 1, 199730-30B .October 30, 200731-32B May24,200433-35 June 1, 199736-37May24,200438-42 June 1, 199743-44F.Marc

30、h 20, 200945-48 June 1, 199749-52B May24,200453-62 June 1, 199763 May24,200464-68 June 1, 199769-72B May24,200473-78 June 1, 199779-80May24,200481-82 June 1, 199783 May24,200484-91 June 1, 199792February 22, 199993 May24,200494-96March 20, 2009A1-A4 .May24,2004B1-B6October 30, 2007SR1-SR6 March 20,

31、2009MARCH 20, 2009 UL 2158tr4UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULElectric Clothes DryersJune 1, 1997(Title Page Reprinted: March 20, 2009)Canadian Standards AssociationCAN/CSA-C22.2 No. 112-97Eighth EditionUnderwriters Laboratories

32、 Inc.UL 2158Second EditionANSI/UL 2158-2009UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULCommitment for AmendmentsThis Standard is issued jointly by the Canadian Standards Association (CSA) andUnderwriters Laboratories Inc. (UL). Comments or

33、 proposals for revisions on anypart of the standard may be submitted to CSA or UL at any time. Revisions to thestandard will be made only after processing according to the standardsdevelopment procedures of CSA and UL. CSA and UL will issue revisions to thisstandard by means of a new edition or revi

34、sed or additional pages bearing theirdate of issue.ISSN 0317-5669Copyright 1997Canadian Standards AssociationAll rights reserved. No part of thispublication may be reproduced in anyform whatsoever without the priorpermission of the publisher.Copyright 1997, 2009Underwriters Laboratories Inc.UL COPYR

35、IGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULCONTENTSPreface .61 Scope 132 Definitions 133 General requirements and reference publications 163.1 General requirements 163.2 Reference publications .174 General conditions for the tests 204.1 Voltage a

36、nd frequency .204.2 Test load 20A4.3 Test fabric 20A4.4 Thermocouples 20A4.5 Laundry detergent .214.6 Cheesecloth for heating and abnormal tests 214.7 Test temperature 215 Void 216 Void 217 Marking and Instructions 217.1 Marking 217.2 Instruction manual .287.3 Installation instructions .307.4 Operat

37、ing instructions 327.5 User-maintenance instructions 327.6 Appliance stand and wall-mounting kit instructions .328 Protection against accessibility to current-carrying parts .32A9 Starting of motor-operated appliances 3410 Power input and current .3411 Heating 3512 Void .3713 Leakage current 3714 Vo

38、id .3915 Moisture resistance .3915.3 Insulation resistance 3916 Electric strength 3917 Overload protection of transformers and associated circuits 4018 Void .4019 Abnormal operation .4019.1 Grounded heating element 4019.2 Cord reels .4119.3 Wetting of electrical components .4119.4 Breakdown of belts

39、 or parts and the interruption of water supply .4219.5 Blockage of lint screen and exhaust 4219.6 Load fire containment .4319.7 Base fire containment .44B20 Stability and mechanical hazards 44D20.1 Automatic restarting of motor .44D20.2 Stability (freestanding appliances) .44D20.3 Wall-mounted appli

40、ances 44E20.4 Appliance stands .44E20.5 Sharp edges, projections, and moving parts .45MARCH 20, 2009 CAN/CSA-C22.2 NO. 112-97 UL 2158 3UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM UL20.6 Entrapment 4520.7 Contact with rotating tumbler 4621 Me

41、chanical strength .4721.1 Frame and enclosure .4721.2 Back covers .4822 Construction .4822.1 Current-carrying parts .4822.2 Electrical insulation .4822.3 Thermal insulation 4922.4 Overflow pipes .4922.5 Bottom openings .4922.6 Plumbing requirements 5122.7 Deflectors .5122.8 Condensate dryers .5222.9

42、 Ventilation openings 5223 Internal wiring 5223.10 Splices and connections .5323.11 Separation of circuits 5323.12 Overcurrent protection .5424 Components .5424.1 General requirements for components 5424.2 Specific requirements for components 5424.3 Capacitors .5524.4 Field-installed devices and acc

43、essories .5524.5 Heating elements 5624.6 Lampholders .5724.7 Motors 5724.8 Motor overload-protective devices 5824.9 Receptacles .5824.10 Seals and diaphragms .5824.11 Switches and controls .5924.12 Temperature controls 6125 Supply connection and external flexible cords 6125.1 General .6125.2 Permane

44、ntly connected appliances .6225.3 Cord-connected appliances 6325.4 Bushings 6426 Terminals for external conductors .6527 Provision for grounding 6627.1 General .6627.2 Neutral-grounding link .6727.3 Bonding for grounding 6827.4 Continuity of grounding circuit 6927.5 Grounding terminals and leads .69

45、28 Screws and connections .7029 Creepage distances, clearances, and distances through insulation 7029.7 Alternate spacings clearances and creepage distances .7130 Resistance to heat, fire, and tracking 7231 Resistance to rusting 7232 Polymeric materials .7232.1 General .72MARCH 20, 2009CAN/CSA-C22.2

46、 NO. 112-97 UL 21584UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM UL32.2 Mould stress relief 72A32.3 Horizontal burning rate 72A32.4 Flammability 72A32.5 6.8 J impact (ambient and low temperature) .7332.6 Static load .7332.7 56.7 J impact 7432

47、.8 Thermal cycling 7432.9 Crush resistance .7432.10 Hot-wire ignition .7432.11 Thermal ageing .7432.12 Volume resistivity .7532.13 Enclosure flammability large mass consideration 7532.14 Abnormal operation test on enclosures 7532.15 Abnormal operation test on functional polymeric parts .7532.16 High

48、-current arc ignition 7633 Manufacturing and production tests 7633.1 Plumbing system leakage test .7633.2 Grounding continuity test 7633.3 Electric strength test 77Tables 79Figures .89Appendix AStandards for ComponentsA1 Component Standards A1Appendix BFrench TranslationsMAY 24, 2004 CAN/CSA-C22.2 N

49、O. 112-97 UL 2158 5UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULPrefaceThis is the harmonized CSA and UL Standard for Electric Clothes Dryers. It is the eighth edition ofCAN/CSA-C22.2 No. 112 and the second edition of UL 2158. This CSA edition supersedes previouseditions published in 1957, 1964, 1970, 1973, 1980, 1990, and 1994. This UL edition supersedes theprevious edition published in 1994.This harmonized standard has been jointly r