UL 2158-2015 UL Standard for Safety Electric Clothes Dryers (Fourth Edition).pdf

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1、UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL UL 2158 Electric Clothes DryersUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM ULUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRO

2、DUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL UL Standard for Safety for Electric Clothes Dryers, UL 2158 Fourth Edition, Dated December 18, 2015 Summary of Topics The Fourth Edition of the Standard for Electric Clothes Dryers, UL 2158, has been issued to reect the latest ANSI approval date, an

3、d to incorporate the proposals dated August 28, 2015. The new and revised requirements are substantially in accordance with Proposal(s) on this subject dated August 28, 2015. All rights reserved. No part of this publication may be reproduced, stored in a retrieval system, or transmitted in any form

4、by any means, electronic, mechanical photocopying, recording, or otherwise without prior permission of UL. UL provides this Standard as is without warranty of any kind, either expressed or implied, including but not limited to, the implied warranties of merchantability or tness for any purpose. In n

5、o event will UL be liable for any special, incidental, consequential, indirect or similar damages, including loss of prots, lost savings, loss of data, or any other damages arising out of the use of or the inability to use this Standard, even if UL or an authorized UL representative has been advised

6、 of the possibility of such damage. In no event shall ULs liability for any damage ever exceed the price paid for this Standard, regardless of the form of the claim. Users of the electronic versions of ULs Standards for Safety agree to defend, indemnify, and hold UL harmless from and against any los

7、s, expense, liability, 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. DECEMBER 18, 2015 UL 2158 tr1UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHE

8、R REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL DECEMBER 18, 2015 UL 2158 tr2 No Text on This PageUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL CSA Group CSA C22.2 No. 112-15 Tenth Edition Underwriters Laboratories Inc. UL 2158 F

9、ourth Edition Electric Clothes Dryers December 18, 2015 ANSI/UL 2158-2015UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL Commitment for Amendments This standard is issued jointly by the Canadian Standards Association (operating as “CSA Group

10、”) and Underwriters Laboratories Inc. (UL). Comments or proposals for revisions on any part of the standard may be submitted to CSA Group or UL at anytime. Revisions to this standard will be made only after processing according to the standards development procedures of CSA Group and UL. CSA Group a

11、nd UL will issue revisions to this standard by means of a new edition or revised or additional pages bearing their date of issue. ISBN 9781488301520 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.

12、 This Standard is subject to review ve years from the date of publication, and suggestions for its improvement will be referred to the appropriate committee. To submit a proposal for change, please send the following information to inquirescsagroup.org and include “Proposal for change” in the subjec

13、t line: Standard designation (number); relevant clause, table, and/or gure number; wording of the proposed change; and rationale for the change. To purchase CSA Group Standards and related publications, visit CSA Groups Online Store at shop.csa.ca or call toll-free 1-800-463-6727 or 416-747-4044. Co

14、pyright 2015 Underwriters Laboratories Inc. ULs Standards for Safety are copyrighted by UL. Neither a printed nor electronic copy of a Standard should be altered in any way. All of ULs Standards and all copyrights, ownerships, and rights regarding those Standards shall remain the sole and exclusive

15、property of UL. This ANSI/UL Standard for Safety consists of the Fourth Edition. The most recent designation of ANSI/UL 2158 as an American National Standard (ANSI) occurred on December 18, 2015. ANSI approval for a standard does not include the Cover Page, Transmittal Pages, Title Page (front and b

16、ack), or the Preface. Any other portions of this ANSI/UL standard that were not processed in accordance with ANSI/UL requirements are noted at the beginning of the impacted sections. Comments or proposals for revisions on any part of the Standard may be submitted to UL at any time. Proposals should

17、be submitted via a Proposal Request in ULs On-Line Collaborative Standards Development System (CSDS) at http:/. To purchase UL Standards, visit Comm 2000 at http:/m- or call toll-free 1-888-853-3503.UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FR

18、OM UL CONTENTS PREFACE 8 1 Scope 10 2 Normative References 10 3 Denitions 17 4 General Requirements 21 5 General Conditions for the Tests .22 5.1 Voltage and frequency .22 5.2 Test load .23 5.3 Test fabric 23 5.4 Thermocouples .23 5.5 Laundry detergent .24 5.6 Cheesecloth for heating and abnormal te

19、sts 24 5.7 Test temperature 24 6 Marking and Instructions 24 6.1 Marking 24 6.2 Instruction manual .31 7 Protection Against Accessibility to Current-Carrying Parts .38 8 Starting of Motor-Operated Appliances .39 9 Power Input and Current 40 10 Heating 40 10.1 General .40 10.2 Cord reels .41 10.3 App

20、liances intended for closet installation 41 10.4 Wall-insert or recessed appliances .41 10.5 Appliances other than closet, wall-insert or recessed .42 10.6 Household clothes dryer 42 10.7 Commercial clothes dryer .42 10.8 Drum light .42 10.9 Exhaust duct system .43 11 Leakage Current and Insulation

21、Resistance 43 11.1 Leakage current 43 11.2 Insulation resistance 45 12 Cool Down Period 45 13 Moisture Resistance 45 14 Electric Strength 46 15 Overload Protection of Transformers and Associated Circuits 46 16 Abnormal Operation .47 16.1 Grounded heating element 47 16.2 Cord reels .48 16.3 Wetting o

22、f electrical components .48 16.4 Breakdown of belts or parts and the interruption of water supply .49 16.5 Blockage of lint screen, exhaust, and condenser .50 16.6 Load re containment .52 16.7 Base re containment .54 16.8 Nichrome wire test .57 17 Stability and Mechanical Hazards .58 17.1 Automatic

23、restarting of motor 58 17.2 Stability (freestanding appliances) 59 17.3 Wall-mounted appliances 59 DECEMBER 18, 2015 CSA C22.2 NO. 112-15 UL 2158 3UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL 17.4 Appliance stands .60 17.5 Sharp edges, pr

24、ojections, and moving parts .61 17.6 Entrapment 61 17.7 Contact with rotating tumbler 62 18 Mechanical Strength 63 18.1 Frame and enclosure .63 18.2 Back covers .64 19 Construction .64 19.1 Current-carrying parts .64 19.2 Electrical insulation .64 19.3 Thermal insulation 65 19.4 Overow pipes .65 19.

25、5 Bottom openings .65 19.6 Plumbing requirements 67 19.7 Condensation type dryers .67 19.8 Ventilation openings 68 20 Internal Wiring 68 20.1 General .68 20.2 Splices and connections 69 20.3 Separation of circuits .70 20.4 Overcurrent protection 70 21 Components .70 21.1 General requirements for com

26、ponents 70 21.2 Specic requirements for components 71 21.3 Capacitors .72 21.4 Field-installed devices and accessories .72 21.5 Heating elements 73 21.6 Lampholders .74 21.7 Motors 75 21.8 Motor overload-protective devices 75 21.9 Protective devices 76 21.10 Receptacles 76 21.11 Seals and diaphragms

27、 .76 21.12 Switches .77 21.13 Controls 78 21.14 Solenoids 80 22 Supply Connection and External Flexible Cords 81 22.1 General .81 22.2 Permanently connected appliances .82 22.3 Cord-connected appliances 83 22.4 Bushings 85 23 Terminals for External Conductors 85 24 Provision for Grounding .86 24.1 G

28、eneral .86 24.2 Neutral-grounding link .88 24.3 Bonding for grounding 88 24.4 Continuity of grounding circuit 89 24.5 Grounding terminals and leads .90 25 Screws and Connections 90 26 Creepage Distances, Clearances, and Distances Through Insulation 90 26.1 Spacings 90 26.2 Alternate spacings clearan

29、ces and creepage distances .91 27 Resistance to Rusting and Corrosion 92 DECEMBER 18, 2015 CSA C22.2 NO. 112-15 UL 2158 4UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL 28 Polymeric Materials .93 28.1 General .93 28.2 Mould stress relief 94

30、28.3 Horizontal burning rate 94 28.4 Flammability .94 28.5 6.8 J impact (ambient and low temperature) .96 28.6 Static load .96 28.7 56.7 J impact 97 28.8 Thermal cycling 97 28.9 Crush resistance .97 28.10 Hot-wire ignition .98 28.11 Thermal aging 98 28.12 Volume resistivity .98 28.13 Enclosure ammab

31、ility large mass consideration 99 28.14 Abnormal operation test on enclosures 99 28.15 Abnormal operation test on functional polymeric parts .99 28.16 High-current arc ignition .100 29 Manufacturing and Production Tests .100 29.1 Plumbing system leakage test 100 29.2 Grounding continuity test .100 2

32、9.3 Electric strength test .100 SUPPLEMENT SA - (Normative) Safety of Smart Enabled Electric Clothes Dryers SA1 Scope 121 SA2 General .121 SA2.1 Controls 121 SA2.2 Separation of circuits .122 SA2.3 Communication and display devices .122 SA2.4 Communication conductors and cables .123 SA2.5 Communicat

33、ion connectors .123 SA2.6 Smart enabled or remote operation 123 SA3 Functional Safety 123 SA4 Resistance to Electromagnetic Phenomena (Immunity) .124 SA5 Marking and Instructions 125 Tables .126 SUPPLEMENT SB - (Normative) Alternative Path for Electronic Controls Requirements INTRODUCTION SB1 Scope

34、127 SB2 General .127 SB3 Denitions .128 CONSTRUCTION SB4 Components .129 DECEMBER 18, 2015 CSA C22.2 NO. 112-15 UL 2158 5UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL SB4.1 Printed wiring boards .129 SB5 Enclosure .129 SB6 Field Connection

35、s 129 SB7 Creepage Distances, Clearance, and Distances through Insulation .130 SB8 Electrical Insulation .130 SB9 Control Functions 130 SB9.1 General 130 SB9.2 Protective electronic circuits/controls 131 SB10 Evaluation of the Different Types of Control Circuits .131 SB10.1 All types of circuits 131

36、 SB11 Protective Electronic Circuits .132 SB12 Operating Controls or Circuits That Perform Safety Critical Functions .132 PERFORMANCE SB13 General Conditions for the Tests 133 SB13.1 Details 133 SB13.2 Intentionally weak parts .133 SB13.3 Test results determined by overcurrent protection operation .

37、134 SB14 Low-Power Circuits 134 SB14.1 Low-power circuit determination 134 SB14.2 Low-power circuit re tests 137 SB15 Abnormal Operation and Fault Tests 137 SB16 Programmable Component Reduced Supply Voltage Test .138 SB17 Electromagnetic Compatibility (EMC) Requirements - Immunity .139 MANUFACTURIN

38、G AND PRODUCTION LINE TESTING SB18 General 140 MARKINGS SB19 General 140 SUPPLEMENT SC - Plumbing Requirements for Household Laundry Equipment SC1 Scope 141 SC2 Denitions .141 SC3 General Requirements 141 SC3.1 Machine inspection 141 SC3.2 Flushing means .142 SC3.3 Soil accumulation 142 SC3.4 Air ga

39、ps 142 SC3.5 Water supply system .142 SC3.6 Overow and drainage .142 SC4 Test Procedures .142 SC4.1 Installation 142 SC4.2 Machine examination 143 SC4.3 Initial cycle 143 SC4.4 Preparation and test for appliances provided with a washing function 143 SC4.5 Dispensers or injectors .144 DECEMBER 18, 20

40、15 CSA C22.2 NO. 112-15 UL 2158 6UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL SC4.6 Indication of contamination .144 SC4.7 Conditioning 145 Annex A (Normative) Standards for Components A1 Component Standards .146 Annex B (informative) B1

41、French Translations 152 DECEMBER 18, 2015 CSA C22.2 NO. 112-15 UL 2158 7UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL PREFACE This is the harmonized CSA Group and UL Standard for Electric Clothes Dryers. It is the tenth edition of CSA C22.

42、2 No. 112 and the fourth edition of UL 2158. This edition of CSA C22.2 No. 112 supersedes the previous edition published in 2014. This UL edition supersedes the previous edition published in 2014. The major differences between this edition and the previous edition include the addition of requirement

43、s for DC Dielectric Test Potential, updates to the safety related controls to include new technologies, addition of requirements for heat pump dryers, modication to the requirements of a high limit control, addition of requirements for a “cool down” period, clarication of the requirements for HB mat

44、erials, modication of the accessibility requirements between the bottom of the appliance and the oor, addition of test procedures due to the breakdown of belts and interruption of water supply, addition of test for polymeric electrical connections (Nichrome Wire Test), addition of an alternative tes

45、t procedure for electronic controls, addition of plumbing requirements from the withdrawn AHAM HLW-2PR document previously referenced and the clarication that the term “live parts” throughout the document is intended to mean “uninsulated live parts” or “live parts”. This harmonized Standard was prep

46、ared by CSA Group and Underwriters Laboratories Inc. (UL). The efforts and support of the Association of Home Appliance Manufacturers (AHAM) are gratefully acknowledged. This Standard is considered suitable for conformity assessment within the stated scope of the Standard. This Standard was reviewed

47、 by the CSA Subcommittee on Clothes-Drying Machines, 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

48、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 considered a minimum quantity. Note: Although the intended primary applicati

49、on 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 is published as an identical standard for CSA Group and UL. An identical standard is a standard that is exactly the same in technical content except for national differences resulting from conicts in codes and governmental regulations. Pres