ANSI UL 2157-2015 UL Standard for Safety Electric Clothes Washing Machines and Extractors (Third Edition).pdf

1、UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL UL 2157 Electric Clothes Washing Machines and ExtractorsUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM ULUL COPYRIGHTED MATERIAL NOT AUT

2、HORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL UL Standard for Safety for Electric Clothes Washing Machines and Extractors, UL 2157 Third Edition, Dated November 2, 2015 Summary of Topics The Third Edition of the Standard for Electric Clothes Washing Machines and Extract

3、ors, UL 2157, has been issued to reect the latest ANSI approval date, and to incorporate the proposals dated February 13, 2015 and July 24, 2015. The new and revised requirements are substantially in accordance with Proposal(s) on this subject dated February 13, 2015 and July 24, 2015 All rights res

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8、 the purchasers computer system. NOVEMBER 2, 2015 UL 2157 tr1UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL NOVEMBER 2, 2015 UL 2157 tr2 No Text on This PageUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WIT

9、HOUT PERMISSION FROM UL CSA Group CSA C22.2 No. 16915 Fourth Edition Underwriters Laboratories Inc. UL 2157 Third Edition Electric Clothes Washing Machines and Extractors November 2, 2015 ANSI/UL 2157-2015UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISS

10、ION 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 for revisions on any part of the standard may be submitted to CSA Group or UL at anytime. Revisions to

11、 this standard will be made only after processing according to the standards development procedures of CSA Group and 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 9781771399920 2015 CSA Group All

12、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 suggestions for its improvement will be referred to the appropriate committee. To submit

13、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 number; wording of the proposed change; and rationale for the change. To purchase CSA Group Sta

14、ndards 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 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 w

15、ay. 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 Third Edition. The most recent designation of ANSI/UL 2157 as an American National Standard (ANSI) occurr

16、ed on November 2, 2015. ANSI approval for a standard does not include the Cover Page, Transmittal Pages, Title Page (front and back), or the Preface.UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL CONTENTS PREFACE 7 1 Scope .8 2 Denitions 8

17、3 General requirements and reference publications 12 3.1 General requirements 12 3.2 Reference publications .13 4 General conditions for the tests 25 4.1 Voltage and frequency .25 4.2 Test load .26 4.3 Test fabric 27 4.4 Thermocouples .27 4.5 Laundry detergent .27 4.6 Laundry bleach .27 4.7 Cheesecl

18、oth for heating and abnormal tests 27 4.8 Test temperature 28 5 Marking and instructions 28 5.1 Marking 28 5.2 Instruction manual .33 5.3 Installation instructions .36 5.4 Operating instructions 37 5.5 User-maintenance instructions 37 5.6 Appliance stand and wall-mounting kit instructions .38 6 Prot

19、ection against accessibility to current-carrying parts 38 7 Starting of motor-operated appliances 40 8 Power input and current 40 9 Heating .40 9.1 General 40 9.2 Appliances intended for closet installation 42 9.3 Wall-insert or recessed appliances 42 9.4 Other appliances 42 9.5 Cord reels 43 9.6 No

20、nautomatic washing machine .43 9.7 Household automatic washing machine 43 9.8 Commercial washing machines .43 9.9 Water heating feature 43 9.10 Household extractors .44 9.11 Coin-, ticket-, or card-operated commercial extractors 44 10 Leakage current 44 11 Moisture resistance .45 12 Insulation resis

21、tance 46 13 Electric strength 46 14 Abnormal operation .47 14.1 Stalled motor and open solenoid test .47 14.2 Cord reels .47 14.3 Wetting of electrical components .48 14.4 Oversudsing .49 14.5 Auxiliary reservoirs .49 14.6 Nichrome wire test .49 14.7 Dry operation 51 NOVEMBER 2, 2015 CSA C22.2 NO. 1

22、6915 UL 2157 3UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL 15 Stability and mechanical hazards .51 15.1 Automatic restarting of motor 51 15.2 Stability (freestanding appliances) 52 15.3 Wall-mounted appliances 52 15.4 Appliance stands .53

23、 15.5 Sharp edges, projections, and moving parts .54 15.6 Entrapment 54 15.7 Wringer washers .55 15.8 Washing machines and extraction-type appliances .57 16 Mechanical strength .58 16.1 Frame and enclosure .58 16.2 Back covers .59 17 Construction .59 17.1 Current-carrying parts .59 17.2 Electrical i

24、nsulation .59 17.3 Thermal insulation 60 17.4 Overow pipes .60 17.5 Bottom openings .61 17.6 Plumbing requirements 62 18 Internal wiring 62 18.10 Splices and connections .64 18.11 Separation of circuits 65 18.12 Overcurrent protection .65 19 Components .65 19.1 General requirements for components 65

25、 19.2 Mechanical assembly .67 19.3 Capacitors .67 19.4 Field-installed devices and accessories .68 19.5 Heating elements 69 19.6 Lampholders .70 19.7 Motors 71 19.8 Motor overload-protective devices 72 19.9 Receptacles .72 19.10 Seals and diaphragms .72 19.11 Switches .73 19.12 Controls 74 19.13 Ove

26、rcurrent protection .78 19.14 Electrically operated valves .78 19.15 Terminals and connectors 78 19.16 Pumps .79 19.17 Insulating devices .79 19.18 Adhesives used to secure parts .79 19.19 Transformers and power supplies .80 20 Supply connection and external exible cords 80 20.1 General .80 20.2 Per

27、manently connected appliances .81 20.3 Cord-connected appliances 82 20.4 Bushings 83 21 Terminals for external conductors .83 22 Provision for grounding 85 22.1 General .85 22.2 Bonding means 87 22.3 Continuity of grounding circuit 88 NOVEMBER 2, 2015 CSA C22.2 NO. 16915 UL 2157 4UL COPYRIGHTED MATE

28、RIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL 22.4 Grounding terminals and leads .88 23 Screws and connections .89 24 Creepage distances, clearances, and distances through insulation 89 24.7 Alternate spacings - clearances and creepage distances 90 25 Resist

29、ance to rusting 90 26 Polymeric materials .91 26.1 General .91 26.2 Long-term exposure 92 26.3 Immersion .94 26.4 Mould stress relief 94 26.5 Horizontal burning rate 95 26.6 Flammability .95 26.7 6.8 J impact (ambient and low temperature) .98 26.8 Static load .98 26.9 56.7 J impact 99 26.10 Thermal

30、cycling .99 26.11 Crush resistance 99 26.12 Hot-wire ignition 100 26.13 Thermal ageing 100 26.14 Volume resistivity 100 26.15 Enclosure ammability - large mass consideration .101 26.16 Abnormal operation test on enclosures .101 26.17 Abnormal operation test on functional polymeric parts 101 26.18 Ab

31、normal operation test on parts wetted only during an abnormal condition .102 26.19 High-current arc ignition .102 27 Manufacturing and production tests 102 27.1 Plumbing system leakage test 102 27.2 Grounding continuity test .102 27.3 Electric strength test .103 SUPPLEMENT SA - OZONE GENERATING WASH

32、ING MACHINES SA1 Scope 125 SA2 Ozone Test 125 SA2.1 Chamber specications .125 SA2.2 Equipment specications .126 SA2.3 Test conditions 126 SA3 Markings and Instructions .126 SA4 Polymeric Materials Exposed to Ozone .127 SA5 Seals and Diaphragms 127 SA6 Protection Against Injury to Persons 127 SUPPLEM

33、ENT SB - SAFETY OF SMART ENABLED CLOTHES WASHING MACHINES SB1 Scope 129 SB2 General .129 SB2.1 Controls 129 SB2.2 Separation of circuits .130 SB2.3 Communication and display devices .130 NOVEMBER 2, 2015 CSA C22.2 NO. 16915 UL 2157 5UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR

34、DISTRIBUTION WITHOUT PERMISSION FROM UL SB2.4 Communication conductor cables 131 SB2.5 Communication connectors .131 SB2.6 Smart Enabled or Remote Operation .131 SB3 Functional Safety 131 SB4 Resistance to Electro Magnetic Phenomena (Immunity) 133 SB5 Markings and Instructions 133 NOVEMBER 2, 2015 C

35、SA C22.2 NO. 16915 UL 2157 6UL 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 Washing Machines and Extractors. It is the fourth edition of CSA C22.2 No. 169, and the

36、 third edition of UL 2157. This edition of CSA C22.2 No. 169 supersedes the previous edition published in 1997. This edition of UL 2157 supersedes the previous edition published on June 1, 1997. This harmonized standard was prepared by the CSA Group and Underwriters Laboratories Inc. (UL). This stan

37、dard is considered suitable for use for conformity assessment within the stated scope of the standard. This standard was reviewed by the CSA Subcommittee on Clothes Washers - Household and Commercial, under the jurisdiction of the CSA Technical Committee on Consumer and Commercial Products, and the

38、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

39、 to a specic number of samples to be tested, the specied number is to be 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 suitab

40、ility 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 regu

41、lations. Presentation is word for word except for editorial changes. 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 rules of t

42、he standards development organization. If more than one interpretation of the literal text has been identied, a revision is to be proposed as soon as possible to each of the standards development organizations to more accurately reect the intent. NOVEMBER 2, 2015 CSA C22.2 NO. 16915 UL 2157 7UL COPY

43、RIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL 1 Scope 1.1 This Standard applies to electric clothes washing machines and extractors intended to be used in nonhazardous locations in accordance with the Canadian Electrical Code, Part I (CE Code), a

44、nd the (U.S.) National Electrical Code (NEC), on circuits having a nominal voltage not exceeding 600 V. Note: Wherever practical, for convenience, the term appliance has been used in lieu of clothes washer or machine . 1.2 This Standard applies to both cord-connected and permanently connected applia

45、nces. The appliances covered by this Standard are intended for use by the general public not specically trained in the use of the appliance, regardless of the mode by which its operation is initiated. They are for use in household and commercial purposes, including appliances provided with coin-, ti

46、cket-, or card-operated mechanisms, wringer washers, tumbler, agitator and spinner machines, combination washer-dryers, and extractors of the centrifugal type. 1.3 This Standard does not apply to industrial and institutional type appliances. Industrial or institutional appliances are covered under t

47、he scope of Electric Washing Machines, CSA C22.2 No. 53, or Electric Commercial Clothes-Washing Equipment, UL 1206. Note: Industrial and institutional type appliances are not intended for use by the general public, but only by trained or supervised personnel. 2 Denitions Note: For the purpose of thi

48、s Standard, the following denitions apply. 2.1 Appliance, cord-connected an appliance that is connected to the electrical supply by a cord set or by a power-supply cord terminating in an acceptable attachment plug. 2.2 Appliance, household type an appliance commonly used in, but not restricted to, a

49、 single-family dwelling. 2.3 Appliance, permanently connected an appliance that is connected to the electrical supply by means other than a supply cord and an attachment plug. 2.4 Appliance, recessed an appliance intended to be: a) supported by the oor; and b) located immediately adjacent to a wall in the rear or located immediately adjacent to a wall, a cabinet, or another appliance on each side. If the construction permits, a countertop can cover the appliance and adjacent cabinets and appl