UL 498C-2017 UL Standard for Safety Flatiron and Appliance Plugs (First Edition Reprint with revisions through and including May 5 2017).pdf

1、UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL UL 498C Flatiron and Appliance Plugs STANDARD FOR SAFETYUL 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 Flatiron and Appliance Plugs, UL 498C First Edition, Dated April 28, 2017 Summary of Topics This revision of ANSI/UL 498C is being issued to replace incorrect references to UL 489C on the Cover Pag

3、e and Transmittal Page with the correct reference, UL 498C. No changes in requirements are involved. As noted in the Commitment for Amendments statement located on the back side of the title page, UL and CSA are committed to updating this harmonized standard jointly. However, the revision pages date

4、d May 5, 2017 will not be jointly issued by UL and CSA as these revision pages only address UL editorial changes. 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, recording,

5、 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, conseq

6、uential, 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 lia

7、bility 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 (including

8、reasonable attorneys fees) resulting from any error or deviation introduced while purchaser is storing an electronic Standard on the purchasers computer system. MAY 5, 2017 UL 498C tr1UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL MAY 5, 20

9、17 UL 498C 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. 57 First Edition Underwriters Laboratories Inc. UL 498C First Edition Flatiron and Appliance Plugs April 28, 2017 (Title Page Reprinte

10、d: May 5, 2017) ANSI/UL 498C-2017UL 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. (

11、UL). Comments or proposals for revisions on any part of the standard may be submitted to the CSA Group or UL at anytime. Revisions to this standard will be made only after processing according to the standards development procedures of the CSA Group, and UL. CSA Group and UL will issue revisions to

12、this standard by means of a new edition or revised or additional pages bearing their date of issue. ISBN 978-1-4883-0755-3 2017 CSA Group 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

13、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 subject line: Standard designati

14、on (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. Copyright 2017 Underwriters

15、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 property of UL. This ANSI/

16、UL Standard for Safety consists of the First Edition. The most recent designation of ANSI/UL 498C as an American National Standard (ANSI) occurred on April 28, 2017. ANSI approval for a standard does not include the Cover Page, Transmittal Pages, Title Page (front and back), or the Preface. Comments

17、 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 Standards, visit ULs Standards Sales Site at http:/ HowToOrder.

18、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 5 INTRODUCTION 1 Scope .6 2 Reference Publications 6 3 Components8 4 Units of Measurements 8 5 Denitions8 6 References.8 CONSTRUCTION 7 Ge

19、neral 9 8 Insulating Materials9 8.1 General .9 8.2 Flammability .9 8.3 Electrical properties10 8.4 Thermal properties 11 9 Enclosure .11 10 Current-Carrying Parts 13 10.1 General .13 10.2 Contacts 13 10.3 Terminals .14 11 Cord Guard (Anti-Kink Device) .14 12 Strain Relief15 13 Replacement Appliance

20、Plug .15 14 Spacings 15 15 Assembly 15 16 Switching Mechanism .15 17 Thermostat.16 PERFORMANCE 18 Tests Representative Devices 16 19 Comparative Tracking Index Test .17 20 Glow Wire Test .17 21 High-Current Arc Resistance to Ignition Test .17 22 Dielectric Voltage-Withstand Test .18 23 Mold Stress R

21、elief Test18 24 Millivolt Drop Test.19 25 Overload Test 20 26 Heating Test .20 27 Millivolt Drop Repeated Test .21 28 Crushing Test 21 29 Mechanical Endurance Test21 30 Accelerated Aging Test 23 31 Cord Guard Test23 MARKINGS APRIL 28, 2017 CSA C22.2 NO. 57 UL 498C 3UL COPYRIGHTED MATERIAL NOT AUTHOR

22、IZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL 32 General24 APRIL 28, 2017 CSA C22.2 NO. 57 UL 498C 4UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL PREFACE This is the harmonized CSA Group and UL standard for Appli

23、ance and Flatiron Plugs. It is the First edition of CAN/CSA-C22.2 No. 57, and the First edition of UL 498C. This harmonized standard was prepared by the CSA Group and Underwriters Laboratories Inc. (UL). The efforts and support of the Technical Harmonization Subcommittee for Switch and Outlet Boxes,

24、 THSC 23B-1, on the Harmonization of Electrotechnical Standards of the Nations of the Americas (CANENA), 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 Integrated Commi

25、ttee on Wiring Devices, under the jurisdiction of the CSA Technical Committee on Wiring Devices 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 Stan

26、dards 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 application of this standard is stated in its scope, it

27、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 uses the IEC format but is not based on, nor is it considered equivalent to, an IEC standard. This standard is published as

28、 an equivalent standard for CSA Group and UL. An equivalent standard is a standard that is substantially the same in technical content, except as follows: Technical national differences are allowed for codes and governmental regulations as well as those recognized as being in accordance with NAFTA A

29、rticle 905, for example, because of fundamental climatic, geographical, technological, or infrastructural factors, scientic justication, or the level of protection that the country considers appropriate. Presentation is word for word except for editorial changes. Interpretations The interpretation b

30、y 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 the standards development organization. If more than one interpretation of the literal text has been ident

31、ied, a revision is to be proposed as soon as possible to each of the standards development organizations to more accurately reect the intent. APRIL 28, 2017 CSA C22.2 NO. 57 UL 498C 5UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL Flatiron a

32、nd Appliance Plugs INTRODUCTION 1 Scope 1.1 These requirements cover atiron and appliance plugs intended for use on cord-connected portable cooking or heating appliances rated up to 20 A, 250 Volts or less, intended for use in ordinary non-hazardous locations all intended for connection to a branch

33、circuit for use in accordance with the National Electrical Code, NFPA 70 and the Canadian Electrical Code, Part I, CSA C22.1-15. 1.2 This Standard does not directly apply to the following devices, but may be used to supplement the requirements within these standards when a device is evaluated to the

34、se standards: a) Devices produced integrally with exible cord or cables that are covered by the Standard for Cord Sets and Power-Supply Cords, UL 817; b) Devices intended for connection to the branch circuit, such as attachment plugs, cord connectors, receptacles, inlets, and outlets, which are cove

35、red by the Standard for Attachment Plugs and Receptacles, UL 498; c) Devices solely intended for direct connection to the branch circuit in accordance with the National Electrical Code, NFPA 70, and that are provided with contacts of the pin and sleeve type, that are covered by the Standard for Plug

36、s, Receptacles, and Cable Connectors of the Pin and Sleeve Type, UL 1682; d) Devices consisting of wiring terminals and supporting blocks intended for the connection of wiring that are covered by the Standard for Terminal Blocks, UL 1059; e) Devices such as wire connectors and soldering lugs that ar

37、e covered by the Standard for Wire Connectors, UL 486A-486B; the Standard for Splicing Wire Connectors, UL 486C; or the Standard for Equipment Wiring Terminals for Use with Aluminum and/or Copper Conductors, UL 486E; f) Devices such as quick-connect terminals that are covered by the Standard for Ele

38、ctrical Quick-Connect Terminals, UL 310; or g) Devices such as appliance couplers that are covered by the Standard for Appliance Couplers for Household and Similar General Purposes Part 1: General Requirements, UL 60320-1. 2 Reference Publications 2.1 Products covered by this Standard shall comply w

39、ith the referenced installation codes and standards noted in this clause as appropriate for the country where the product is to be used. When the product is intended for use in more than one country, the product shall comply with the installation codes and standards for all countries where it is int

40、ended to be used. APRIL 28, 2017 CSA C22.2 NO. 57 UL 498C 6UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL 2.2 Where reference is made to any Standards, such reference shall be considered to refer to the latest editions and revisions thereto

41、 available at the time of printing, unless otherwise specied. CSA Group Standards C22.1-15 Canadian Electrical Code, Part I (CE Code, Part I) CAN/CSA C22.2 No. 0.17 Evaluation of properties of polymeric materials CSA C22.2 No. 21 Cord sets and power supply cords CSA C22.2 No. 24 Temperature-indicati

42、ng and -regulating equipment CSA C22.2 No. 55 Special use switches UL Standards UL 20 General-Use Snap Switches UL 94 Tests for Flammability of Plastic Materials for Parts in Devices and Appliances UL 746A Polymeric Materials Short Term Property Evaluations UL 746B Polymeric Materials Long Term Prop

43、erty Evaluations UL 746D Polymeric Materials Fabricated Parts UL 817 Cord Sets and Power Supply Cords UL 873 Temperature-Indicating and Regulating Equipment UL 60730-1 Automatic Electrical Controls Part 1: General Requirements NFPA (National Fire Protection Association) NFPA 70 National Electrical C

44、ode APRIL 28, 2017 CSA C22.2 NO. 57 UL 498C 7UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL 3 Components 3.1 Except as indicated in Clause 3.2, a component of a product covered by this Standard shall comply with the requirements for that co

45、mponent. See Clause 2 for a list of standards covering components generally used in the products covered by this Standard. A component shall comply with the CSA Group or UL standards as appropriate for the country where the product is to be used. 3.2 A component is not required to comply with a spec

46、ic requirement that: a) Involves a feature or characteristic not required in the application of the component in the product covered by this standard, or b) Is superseded by a requirement in this standard. 3.3 A component shall be used in accordance with its rating established for the intended condi

47、tions of use. 3.4 Specic components are incomplete in construction features or restricted in performance capabilities. Such components are intended for use only under limited conditions, such as certain temperatures not exceeding specied limits, and shall be used only under those specic conditions.

48、4 Units of Measurements 4.1 When a value for measurement is followed by a value in other units in parentheses, the rst stated value is the requirement. 5 Denitions 5.1 For the purposes of this standard, the following denitions apply. 5.2 APPLIANCE PLUG (Appliance Connector) A female contact device h

49、aving a cord guard and a slot conguration specied for use with heating or cooking appliances and intended to mate with appliance pins. Used as a component of a heater cord set. See the Standard for Cord Sets and Power Supply Cords, UL 817 and Cord Sets and Power Supply Cords, CSA C22.2 No. 21. 5.3 FLATIRON PLUG (Appliance Connector) A female contact device with a cord guard and a slot conguration specied for use with electric irons and similar heating appliances