UL 2158-2018 UL Standard for Safety Electric Clothes Dryers (Fifth 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 Dryers STANDARD FOR SAFETYUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM ULUL COPYRIGHTED MATERIAL NOT AUTHORIZ

2、ED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL UL Standard for Safety for Electric Clothes Dryers, UL 2158 Fifth Edition, Dated April 6, 2018 Summary of Topics This new edition of ANSI/UL 2158 is being issued to incorporate several substantial changes. The new and revised req

3、uirements are substantially in accordance with Proposal(s) on this subject dated April 28, 2017 and October 27, 2017. All rights reserved. No part of this publication may be reproduced, stored in a retrieval system, or transmitted in any form by any means, electronic, mechanical photocopying, record

4、ing, 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 no event will UL be liable for any special, incidental, co

5、nsequential, 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 of the possibility of such damage. In no event shall ULs

6、 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 loss, expense, liability, damage, claim, or judgment (includ

7、ing reasonable attorneys fees) resulting from any error or deviation introduced while purchaser is storing an electronic Standard on the purchasers computer system. APRIL 6, 2018 UL 2158 tr1UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL APR

8、IL 6, 2018 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. 112-18 Eleventh Edition Underwriters Laboratories Inc. UL 2158 Fifth Edition Electric Clothes Dryers April 6, 2018 ANSI/UL 215

9、8-2018UL 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”) and Underwriters Laboratories Inc. (UL). Comments or proposals f

10、or 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 processingaccordingtothestandardsdevelopmentproceduresofCSAGroupandUL.CSAGroupand ULwillissuerevisionstothisstandardbymeansofaneweditionorrevisedoradditionalpag

11、esbearing their date of issue. ISBN 9781488301520 2018 Canadian Standards Association 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 ve years from the date of publication, and

12、 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 subject line: Standard designation (number); relevant clause, table, and/or gure num

13、ber; 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. Copyright 2018 Underwriters Laboratories Inc. ULs Standards for Safety are copyr

14、ighted 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 property of UL. This ANSI/UL Standard for Safety consists of the Fifth Edition

15、. The most recent designation of ANSI/UL 2158 as an American National Standard (ANSI) occurred on April 6, 2018. 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 exclud

16、ed from the ANSI approval of IEC-based standards. Comments or proposals for revisions on any part of the Standard 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 Stand

17、ards, visit ULs Standards Sales Site at http:/ HowToOrder.aspx or call toll-free 1-888-853-3503.UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL CONTENTS PREFACE 8 1 Scope .9 2 Normative References .9 3 Denitions 20 4 General Requirements24 5

18、 General Conditions for the Tests.25 5.1 Voltage and frequency .25 5.2 Test load .26 5.3 Test fabric 26 5.4 Thermocouples .26 5.5 Laundry detergent .26 5.6 Cheesecloth for heating and abnormal tests 27 5.7 Test temperature 27 6 Marking and Instructions 27 6.1 Marking 27 6.2 Instruction manual .34 7

19、Protection Against Accessibility to Current-Carrying Parts.41 8 Starting of Motor-Operated Appliances .42 9 Power Input and Current43 10 Heating 43 10.1 General .43 10.2 Cord reels .44 10.3 Appliances intended for closet installation 44 10.4 Wall-insert or recessed appliances .44 10.5 Appliances oth

20、er than closet, wall-insert or recessed .45 10.6 Household clothes dryer 45 10.7 Commercial clothes dryer .45 10.8 Drum light .45 10.9 Exhaust duct system .46 10.10 Surface temperatures 46 11 Leakage Current and Insulation Resistance 46 11.1 Leakage current46 11.2 Insulation resistance 48 12 Cool Do

21、wn Period 48 13 Moisture Resistance 49 14 Electric Strength 49 15 Overload Protection of Transformers and Associated Circuits 50 16 Abnormal Operation.50 16.1 Grounded heating element 50 16.2 Cord reels .51 16.3 Wetting of electrical components .51 16.4 Breakdown of belts or parts and the interrupti

22、on of water supply .52 16.5 Blockage of lint screen, exhaust, and condenser .53 16.6 Load re containment .55 16.7 Base re containment.58 16.8 Nichrome wire test .61 17 Stability and Mechanical Hazards .62 17.1 Automatic restarting of motor 62 17.2 Stability (freestanding appliances) 63 APRIL 6, 2018

23、 CSA C22.2 NO. 112-18 UL 2158 3UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL 17.3 Wall-mounted appliances63 17.4 Appliance stands .64 17.5 Sharp edges, projections, and moving parts .65 17.6 Entrapment 65 17.7 Contact with rotating tumbler

24、 66 18 Mechanical Strength 67 18.1 Frame and enclosure .67 18.2 Back covers .68 19 Construction .68 19.1 Current-carrying parts.68 19.2 Electrical insulation .68 19.3 Thermal insulation 69 19.4 Overow pipes .69 19.5 Bottom openings .69 19.6 Plumbing requirements71 19.7 Condensation type dryers .71 1

25、9.8 Ventilation openings 72 20 Internal Wiring72 20.1 General .72 20.2 Splices and connections 74 20.3 Separation of circuits .75 20.4 Overcurrent protection 75 21 Components .75 21.1 General requirements for components 75 21.2 Mechanical assembly .77 21.3 Capacitors.78 21.4 Field-installed devices

26、and accessories .79 21.5 Heating elements 80 21.6 Lampholders.81 21.7 Motors 82 21.8 Motor overload-protective devices 82 21.9 Protective devices 83 21.10 Receptacles 83 21.11 Seals and diaphragms .84 21.12 Switches .84 21.13 Controls85 21.14 Solenoids 88 21.15 Switches and controls .89 21.16 Overcu

27、rrent protection .90 21.17 Electrically operated valves.90 21.18 Terminals and connectors 90 21.19 Pumps .91 21.20 Insulating devices .91 21.21 Adhesives used to secure parts .91 21.22 Transformers and power supplies .91 21.23 Button or coin cell batteries of lithium technologies .92 22 Supply Conne

28、ction and External Flexible Cords 92 22.1 General .92 22.2 Permanently connected appliances .93 22.3 Cord-connected appliances 94 22.4 Bushings 96 23 Terminals for External Conductors 96 24 Provision for Grounding .97 APRIL 6, 2018 CSA C22.2 NO. 112-18 UL 2158 4UL COPYRIGHTED MATERIAL NOT AUTHORIZED

29、 FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL 24.1 General .97 24.2 Neutral-grounding link.99 24.3 Bonding for grounding .100 24.4 Continuity of grounding circuit 101 24.5 Grounding terminals and leads101 25 Screws and Connections .102 26 Creepage Distances, Clearances, and Di

30、stances Through Insulation.102 26.1 Spacings .102 26.2 Alternate spacings clearances and creepage distances 103 27 Resistance to Rusting and Corrosion.104 28 Polymeric Materials 104 28.1 General 104 28.2 Mould stress relief.106 28.3 Horizontal burning rate.106 28.4 Flammability 106 28.5 6.8 J impact

31、 (ambient and low temperature) 108 28.6 Static load109 28.7 56.7 J impact .110 28.8 Thermal cycling .110 28.9 Crush resistance 110 28.10 Hot-wire ignition111 28.11 Thermal aging .111 28.12 Volume resistivity 111 28.13 Enclosure ammability large mass consideration .112 28.14 Abnormal operation test o

32、n enclosures .112 28.15 Abnormal operation test on functional polymeric parts 112 28.16 High-current arc ignition.113 29 Manufacturing and Production Tests .113 29.1 Plumbing system leakage test 113 29.2 Grounding continuity test .113 29.3 Electric strength test .113 Tables .115 Figures 125 SUPPLEME

33、NT SA - (Normative) Safety of Smart Enabled Electric Clothes Dryers SA1 Scope 139 SA2 General .139 SA2.1 Controls 139 SA2.2 Separation of circuits.140 SA2.3 Communication and display devices .140 SA2.4 Communication conductors and cables .141 SA2.5 Communication connectors .141 SA2.6 Smart enabled o

34、r remote operation 141 SA3 Functional Safety 141 SA4 Resistance to Electromagnetic Phenomena (Immunity) .142 SA5 Marking and Instructions 143 Tables .144 APRIL 6, 2018 CSA C22.2 NO. 112-18 UL 2158 5UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FRO

35、M UL SUPPLEMENT SB - (Normative) Alternative Path for Electronic Controls Requirements INTRODUCTION SB1 Scope 145 SB2 General .145 SB3 Denitions.146 CONSTRUCTION SB4 Components.147 SB4.1 Printed wiring boards.147 SB4.2 Capacitors 147 SB4.3 Isolation devices.148 SB4.4 Switch mode power supplies 148 S

36、B4.5 Transformers148 SB5 Enclosure .148 SB6 Field Connections 148 SB7 Creepage Distances, Clearance, and Distances through Insulation .149 SB8 Electrical Insulation.149 SB9 Control Functions 149 SB9.1 General 149 SB9.2 Protective electronic circuits/controls 150 SB10 Evaluation of the Different Type

37、s of Control Circuits.150 SB10.1 All types of circuits150 SB11 Protective Electronic Circuits .151 SB12 Operating Controls or Circuits That Perform Safety Critical Functions .151 PERFORMANCE SB13 General Conditions for the Tests152 SB13.1 Details 152 SB13.2 Intentionally weak parts .152 SB13.3 Test

38、results determined by overcurrent protection operation .153 SB14 Low-Power Circuits153 SB14.1 Low-power circuit determination 153 SB14.2 Low-power circuit re tests 156 SB15 Abnormal Operation and Fault Tests 156 SB15.1 General .156 SB15.2 Transformer overload test .158 SB15.3 Switch mode power suppl

39、y overload test 158 SB16 Programmable Component Reduced Supply Voltage Test .159 SB17 Electromagnetic Compatibility (EMC) Requirements - Immunity .159 MANUFACTURING AND PRODUCTION LINE TESTING SB18 General 160 MARKINGS SB19 General 160 APRIL 6, 2018 CSA C22.2 NO. 112-18 UL 2158 6UL COPYRIGHTED MATER

40、IAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL SUPPLEMENT SC - Plumbing Requirements For Household Laundry Equipment SC1 Scope 161 SC2 Denitions.161 SC3 General Requirements161 SC3.1 Machine inspection 161 SC3.2 Flushing means .162 SC3.3 Soil accumulation162 S

41、C3.4 Air gaps 162 SC3.5 Water supply system.162 SC3.6 Overow and drainage .162 SC4 Test Procedures .162 SC4.1 Installation 162 SC4.2 Machine examination 163 SC4.3 Initial cycle163 SC4.4 Preparation and test for appliances provided with a washing function 163 SC4.5 Dispensers or injectors .164 SC4.6

42、Indication of contamination .165 SC4.7 Conditioning 165 Annex A (informative) A1 French Translations166 APRIL 6, 2018 CSA C22.2 NO. 112-18 UL 2158 7UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL PREFACE This is the harmonized CSA Group and

43、UL Standard for Electric Clothes Dryers. It is the eleventh edition of CSA C22.2 No. 112 and the fth edition of UL 2158. This edition of CSA C22.2 No. 112 supersedes the previous edition published in 2015. This edition of UL 2158 supersedes the previous edition published in 2015. This harmonized Sta

44、ndard was prepared by CSA Group and Underwriters Laboratories Inc. (UL). The efforts and support of the Technical Harmonization Committee for Laundry Standards and the Association of Home Appliance Manufacturers (AHAM) are gratefully acknowledged. This Standard is considered suitable for conformity

45、assessment within the stated scope of the Standard. This Standard was reviewed 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,

46、 and has been formally approved by the CSA Technical Committee. 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 b

47、e considered 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 Standar

48、d 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. Presentation is word for word except for editorial changes. Re

49、asons for Differences From IEC This standard provides requirements for electric clothes dryers for use in accordance with the electrical installation codes of Canada and the United States. This standard does not employ any IEC standard for base requirements. 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 rule