1、UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL UL 2157 Electric Clothes Washing Machines and Extractors STANDARD FOR SAFETYUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM ULUL COPYRIGH
2、TED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL UL Standard for Safety for Electric Clothes Washing Machines and Extractors, UL 2157 Fourth Edition, Dated May 28, 2018 Summary of Topics This new edition of ANSI/UL 2157 is being issued to incorporate se
3、veral substantial changes. The new/revised requirements are substantially in accordance with Proposal(s) on this subject dated April 28, 2017, October 27, 2017 and January 19, 2018. All rights reserved. No part of this publication may be reproduced, stored in a retrieval system, or transmitted in an
4、y form 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 purpos
5、e. In no 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
6、advised 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
7、any loss, 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. MAY 28, 2018 UL 2157 tr1UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURT
8、HER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL MAY 28, 2018 UL 2157 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. 16918 Fifth Edition Underwriters Laboratories Inc. UL 2157 Fourt
9、h Edition Electric Clothes Washing Machines and Extractors May 28, 2018 ANSI/UL 2157-2018UL 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 (operati
10、ng as “CSA Group”) 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
11、 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 of issue. ISBN 9781488308628 2018 Canadian Standards Association All rights reserved. No part of this publication may be reproduced in any form whatsoever without t
12、he 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 appropriate committee. To submit a proposal for change, please send the following information to inquirescsagroup.org and
13、 include Proposal for change in the subject 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 to
14、ll-free 1-800-463-6727 or 416-747-4044. Copyright 2018 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 Stan
15、dards shall remain the sole and exclusive property of UL. This ANSI/UL Standard for Safety consists of the Fourth Edition. The most recent designation of ANSI/UL 2157 as an American National Standard (ANSI) occurred on May 28, 2018. ANSI approval for a standard does not include the Cover Page, Trans
16、mittal Pages, Title Page (front and back), or the Preface. 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
17、 UL Standards, 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 10 2 Denitions 10 3 General requirements and reference public
18、ations 15 3.1 General requirements 15 3.2 Reference publications .15 4 General Conditions for the Tests.27 4.1 Voltage and frequency .27 4.2 Test load .28 4.3 Test fabric 29 4.4 Thermocouples .29 4.5 Laundry detergent .29 4.6 Laundry bleach .29 4.7 Cheesecloth for heating and abnormal tests 29 4.8 T
19、est temperature 30 5 Marking and Instructions 30 5.1 Marking 30 5.2 Instruction manual .35 5.3 Installation instructions .39 5.4 Operating instructions 39 5.5 User-maintenance instructions 40 5.6 Appliance stand and wall-mounting kit instructions.40 6 Protection against accessibility to current-carr
20、ying parts 40 7 Starting of Motor-Operated Appliances .42 8 Power input and current 42 9 Heating .43 9.1 General 43 9.2 Appliances intended for closet installation 44 9.3 Wall-insert or recessed appliances 45 9.4 Other appliances 45 9.5 Cord reels 45 9.6 Nonautomatic washing machine .45 9.7 Househol
21、d automatic washing machine 46 9.8 Commercial washing machines .46 9.9 Water heating feature 46 9.10 Household extractors .46 9.11 Coin-, ticket-, or card-operated commercial extractors 47 10 Leakage current 47 11 Moisture resistance .48 12 Insulation resistance 48 13 Electric strength 49 14 Abnorma
22、l operation .49 14.1 Stalled motor and open solenoid test .49 14.2 Cord reels .50 14.3 Wetting of electrical components .50 14.4 Oversudsing .51 14.5 Auxiliary reservoirs .51 14.6 Liquid spillage test52 14.7 Nichrome wire test .52 MAY 28, 2018 CSA C22.2 NO. 16918 UL 2157 3UL COPYRIGHTED MATERIAL NOT
23、 AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL 14.8 Dry operation 54 15 Stability and mechanical hazards .54 15.1 Automatic restarting of motor 54 15.2 Stability (freestanding appliances) 55 15.3 Wall-mounted appliances55 15.4 Appliance stands .56 15.5 Sharp edges, p
24、rojections, and moving parts .57 15.6 Entrapment 57 15.7 Wringer washers .58 15.8 Washing machines and extraction-type appliances .60 16 Mechanical strength.61 16.1 Frame and enclosure .61 16.2 Back covers .62 16.3 Glass loading doors and lids.62 17 Construction .62 17.1 Current-carrying parts.62 17
25、.2 Electrical insulation .63 17.3 Thermal insulation 64 17.4 Overow pipes .64 17.5 Bottom openings .64 17.6 Plumbing requirements66 18 Internal wiring 66 18.1 General .66 18.2 Splices and connections 67 18.3 Separation of circuits .68 18.4 Overcurrent protection 69 18.5 Endurance test for pedestal w
26、ire exing.69 19 Components .69 19.1 General requirements for components 69 19.2 Mechanical assembly .71 19.3 Capacitors.71 19.4 Field-installed devices and accessories .72 19.5 Heating elements 73 19.6 Lampholders.74 19.7 Motors 75 19.8 Motor overload-protective devices 76 19.9 Receptacles .76 19.10
27、 Seals and diaphragms .77 19.11 Switches .77 19.12 Controls79 19.13 Overcurrent protection .82 19.14 Electrically operated valves.82 19.15 Terminals and connectors 82 19.16 Pumps .83 19.17 Insulating devices .83 19.18 Adhesives used to secure parts .83 19.19 Transformers and power supplies .84 19.20
28、 Button or coin cell batteries of lithium technologies 84 20 Supply connection and external exible cords 84 20.1 General .84 20.2 Permanently connected appliances .85 20.3 Cord-connected appliances 86 20.4 Bushings 87 MAY 28, 2018 CSA C22.2 NO. 16918 UL 2157 4UL COPYRIGHTED MATERIAL NOT AUTHORIZED F
29、OR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL 21 Terminals for external conductors.87 22 Provision for grounding 89 22.1 General .89 22.2 Bonding means 91 22.3 Continuity of grounding circuit92 22.4 Grounding terminals and leads.92 23 Screws and connections .93 24 Creepage dista
30、nces, clearances, and distances through insulation93 24.1 General .93 24.2 Alternate spacings - clearances and creepage distances 94 25 Resistance to rusting 94 26 Polymeric materials .95 26.1 General .95 26.2 Long-term exposure 97 26.3 Immersion .99 26.4 Mould stress relief.100 26.5 Horizontal burn
31、ing rate.100 26.6 Flammability 100 26.7 6.8 J impact (ambient and low temperature) 103 26.8 Static load104 26.9 56.7 J impact .104 26.10 Thermal cycling 105 26.11 Hot-wire ignition105 26.12 Thermal ageing 105 26.13 Volume resistivity 106 26.14 Enclosure ammability - large mass consideration .106 26.
32、15 Abnormal operation test on enclosures .106 26.16 Abnormal operation test on functional polymeric parts 106 26.17 Abnormal operation test on parts wetted only during an abnormal condition .107 26.18 High-current arc ignition.107 27 Manufacturing and production tests 107 27.1 Plumbing system leakag
33、e test 107 27.2 Grounding continuity test .107 27.3 Electric strength test .108 Tables .110 Figures 119 SUPPLEMENT SA - OZONE GENERATING WASHING MACHINES SA1 Scope 133 SA2 Ozone Test133 SA2.1 Chamber specications.133 SA2.2 Equipment specications .134 SA2.3 Test conditions 134 SA3 Markings and Instru
34、ctions .134 SA4 Polymeric Materials Exposed to Ozone .135 SA5 Seals and Diaphragms135 SA6 Protection Against Injury to Persons 135 MAY 28, 2018 CSA C22.2 NO. 16918 UL 2157 5UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL SUPPLEMENT SB - SAFE
35、TY OF SMART ENABLED CLOTHES WASHING MACHINES SB1 Scope 137 SB2 General .137 SB2.1 Controls 137 SB2.2 Separation of circuits.138 SB2.3 Communication and display devices .138 SB2.4 Communication conductor cables 139 SB2.5 Communication connectors .139 SB2.6 Smart Enabled or Remote Operation.139 SB3 Fu
36、nctional Safety 139 SB4 Resistance to Electro Magnetic Phenomena (Immunity) 141 SB5 Markings and Instructions 141 SUPPLEMENT SC - PLUMBING REQUIREMENTS FOR HOUSEHOLD LAUNDRY EQUIPMENT SC1 Scope 143 SC2 Denitions.143 SC3 General Requirements143 SC3.1 Machine inspection 143 SC3.2 Flushing means .144 S
37、C3.3 Soil accumulation144 SC3.4 Air gaps 144 SC3.5 Water supply system.144 SC3.6 Overow and drainage .144 SC4 Test Procedures .144 SC4.1 Installation 144 SC4.2 Machine examination 145 SC4.3 Initial cycle145 SC4.4 Preparation and test for appliances provided with a washing function .145 SC4.5 Dispens
38、ers or injectors .146 SC4.6 Indication of contamination .147 SC4.7 Conditioning 147 SUPPLEMENT SD - ALTERNATIVE PATH FOR ELECTRONIC CONTROLS REQUIREMENTS INTRODUCTION SD1 Scope 149 SD2 General .149 SD3 Denitions.150 CONSTRUCTION SD4 Components.151 SD4.1 Printed wiring boards 151 SD4.2 Capacitors 151
39、 SD4.3 Isolation devices 152 MAY 28, 2018 CSA C22.2 NO. 16918 UL 2157 6UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL SD4.4 Switch mode power supplies 152 SD4.5 Transformers152 SD5 Enclosure .152 SD6 Field Connections 153 SD7 Creepage Dista
40、nces, Clearances, and Distances through Insulation153 SD8 Electrical Insulation.153 SD9 Control Functions 153 SD9.1 General 153 SD9.2 Protective electronic circuits/controls .154 SD10 Evaluation of the Different Types of Control Circuits.154 SD10.1 All types of circuits .154 SD11 Protective Electron
41、ic Circuits .155 SD12 Operating Controls or Circuits that Perform Safety Critical Functions 155 PERFORMANCE SD13 General Conditions for the Tests156 SD13.1 Details 156 SD13.2 Intentionally weak parts .156 SD13.3 Test results determined by overcurrent protection operation .157 SD14 Low-Power Circuits
42、 .157 SD14.1 Low-power circuit determination 157 SD14.2 Low-power circuit re tests 158 SD15 Abnormal Operation and Fault Tests 159 SD15.1 General .159 SD15.2 Transformer overload test .160 SD15.3 Switch mode power supply overload test 161 SD16 Programmable Component Reduced Supply Voltage Test .161
43、SD17 Electromagnetic Compatibility (EMC) Requirements - Immunity.161 MANUFACTURING AND PRODUCTION LINE TESTING SD18 General163 MARKINGS SD19 General163 ANNEX A (informative) Translations A1 French Translations164 MAY 28, 2018 CSA C22.2 NO. 16918 UL 2157 7UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FU
44、RTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL PREFACE This is the harmonized CSA Group and UL Standard for Electric Clothes Washing Machines and Extractors. It is the fth edition of CSA C22.2 No. 169, and the fourth edition of UL 2157. This edition of CSA C22.2 No. 169 supersedes the
45、 previous edition published in 2015. This edition of UL 2157 supersedes the previous edition published in 2015. The major differences between this edition and the previous edition include the clarication of the risk of electrical shock and re denitions and the revision of requirements for instructio
46、n manual, operating instructions, protection against accessibility to current-carrying parts, power input and current, heating test, electric strength test, abnormal operation test, polymeric materials. The new edition also incorporates the new requirements for nichrome wire test, glass loading door
47、s and lids, endurance test for pedestral wire exing, botton or coin cell batteries of lithium techniologies and plumbing requirements for household laundry equipment. This harmonized standard was prepared by the CSA Group and Underwriters Laboratories Inc. (UL). The efforts and support of the Techni
48、cal Harmonization Committee for Laundry Standards and Association of Home Appliance Manufacturers (AHAM) 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
49、Clothes Washers - Household and Commercial, 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 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
