1、NEMA Standards PublicationNational Electrical Manufacturers AssociationANSI/IEC 60974-11:2009Arc Welding Equipment - Part 11: Electrode HoldersApproved as an American National Standard ANSI Approval Date: September 22, 2009 Adoption of IEC 60974-11, Ed. 2 (2004) ANSI/IEC 60974-11:2009 Arc Welding Eq
2、uipment Part 11: Electrode Holders Published by National Electrical Manufacturers Association 1300 North 17th Street, Suite 1752 Rosslyn, Virginia 22209 www.nema.org Copyright 2009 by the National Electrical Manufacturers Association. All rights including translation into other languages, reserved u
3、nder the Universal Copyright Convention, the Berne Convention for the Protection of Literary and Artistic Works, and the International and Pan American Copyright Conventions. These materials are subject to copyright claims of IEC, ANSI, and NEMA. Not for resale. No part of this publication may be re
4、produced in any form, including an electronic retrieval system, without the prior written permission of NEMA. All requests pertaining to the ANSI/NEMA Standard should be submitted to NEMA. NOTICE AND DISCLAIMER The information in this publication was considered technically sound by the consensus of
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6、 and guideline publications, of which the document contained herein is one, are developed through a voluntary consensus standards development process. This process brings together volunteers and/or seeks out the views of persons who have an interest in the topic covered by this publication. NEMA doe
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14、requires verification by ANSI that the requirements for due process, consensus, and other criteria for approval have been met by the standards developer. Consensus is established when, in the judgment of the ANSI Board of Standards Review, substantial agreement has been reached by directly and mater
15、ially affected interests. Substantial agreement means much more than a simple majority, but not necessarily unanimity. Consensus requires that all views and objections be considered, and that a concerted effort be made toward their resolution. The use of American National Standards is completely vol
16、untary; their existence does not in any respect preclude anyone, whether he has approved the standards or not, from manufacturing, marketing, purchasing, or using products, processes, or procedures not conforming to the standards. The American National Standards Institute does not develop standards
17、and will in no circumstances give an interpretation of any American National Standard. Moreover, no person shall have the right or authority to issue an interpretation of an American National Standard in the name of the American National Standards Institute. Requests for interpretations should be ad
18、dressed to the secretariat or sponsor whose name appears on the title page of this standard. Caution Notice: This American National Standard may be revised or withdrawn at any time. The procedures of the American National Standards Institute require that action be taken periodically to reaffirm, rev
19、ise, or withdraw this standard. Purchasers of American National Standards may receive current information on all standards by calling or writing the American National Standards Institute. Published by National Electrical Manufacturers Association 1300 North 17th Street, Rosslyn, VA 22209 Copyright 2
20、009 by National Electrical Manufacturers Association All rights reserved including translation into other languages, reserved under the Universal Copyright Convention, the Berne Convention for the Protection of Literary and Artistic Works, and the International and Pan American Copyright Conventions
21、. No part of this publication may be reproduced in any form, in an electronic retrieval system or otherwise, without the prior written permission of the publisher. Printed in the United States of America This page intentionally left blank.ANSI/IEC 60974-11-2009 5 FOREWORD FOR U.S. ADOPTION This Amer
22、ican National Standard is an adoption of IEC 60974-11, edition 2, Arc welding equipment Part 11: Electrode holders, and was developed and approved in accordance with procedures set forth by the American National Standards Institute. Any reference in this standard to an IEC 60974 part is understood t
23、o mean a reference to the equivalent ANSI/IEC 60974 part, where it exists. This standard contains all the original text from IEC 60974-11, edition 2, in addition to a number of U.S. Differences to the IEC standard that were identified by Accredited Standards Committee W1, Requirements for Apparatus
24、Designed for Use in Arc Welding, Plasma Arc Cutting, and Allied Processes. Each U.S. Difference is found both in a compilation of U.S. Differences following this foreword, and inserted in the appropriate place(s) in the standard relating to the difference. Each insertion is in red text and is marked
25、 by three lines on its left (two thin, one thick). Each difference is identified with the following format: Clause/Subclause NumberDVNumber of Difference for the Given Clause/Subclause Following this format, the example 17.1DV.3 signifies that it is the third U.S. Difference to subclause 17.1. Sugge
26、stions for the improvement of this standard are welcome and should be submitted to the Secretariat of Accredited Standards Committee W1 as follows: Greg Winchester, ASC W1 Secretary c/o National Electrical Manufacturers Association 1300 North 17th Street, Suite 1752 Rosslyn, VA 22209 Fax 703-841-339
27、9 Email gre_winchesternema.org This standard was processed and approved by the Accredited Standards Committee W1. Committee approval does not necessarily imply that all Committee members voted for its approval. At the time this standard was approved, Accredited Standards Committee W1 consisted of th
28、e following members: John Freudenberg, Chairman Wayne Hoffman, Vice Chairman Greg Winchester, Secretary Organization Represented Name of Representative American Welding Society Andrew Davis - principal Dick Holgren - alternate CSA International Andrew Krumins CenterLine (Windsor) Ltd. David Beneteau
29、 ESAB Welding and Cutting Charles Aimar Hypertherm Inc. Tony Zeller principal Bill Lynn - alternate Lincoln Electric Company Frank Stupczy - principal Gary Mikitin - alternate Miller Electric Manufacturing Company David Werba principal Terry Christianson-Plato alternate Mike Madsen - alternate North
30、east Product Safety Society John Freudenberg Wayne Hoffman Consultant / U.S. Technical Advisor, IEC TC 26 Wayne Hoffman ANSI/IEC 60974-11-2009 6 COMPILATION OF U.S. DIFFERENCES NOTE This section is an integral part of American National Standard ANSI/IEC 60974-11. See the section “Foreword for U.S. A
31、doption“ for an explanation of the format used to identify U.S. Differences. ForewordDV.1 Modify the foreword by adding the following: The numbering system in this standard uses a space instead of a comma to indicate thousands and uses a comma instead of a period to indicate a decimal point. For exa
32、mple, 1 000 means 1,000 and 1,01 means 1.01. GlobalDV.1 Throughout this document, replace the phrase “this part of IEC 60974“ with “this part of ANSI/IEC 60974“ 60974-11 IEC:2004 7 CONTENTS FOREWORD8 1 Scope.10 2 Normative references10 3 Terms and definitions .10 4 Environmental conditions 11 5 Type
33、 tests 11 5.1 Test conditions 11 5.2 Tests sequence .11 6 Designation 12 7 Operation .12 8 Protection against electric shock.13 8.1 Protection against direct contact 13 8.2 Insulation resistance13 8.3 Dielectric strength14 9 Thermal rating 14 9.1 Temperature rise .14 9.2 Resistance to heat.15 9.3 Re
34、sistance to hot objects.15 10 Mechanical requirements 16 10.1 Welding cable entry .16 10.2 Penetration of the welding cable insulation.16 10.3 Welding cable connection 16 10.4 Impact resistance 16 11 Marking 17 12 Instructions for use .18 60974-11 IEC:2004 8 INTERNATIONAL ELECTROTECHNICAL COMMISSION
35、 _ ARC WELDING EQUIPMENT Part 11: Electrode holders FOREWORD 1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising all national electrotechnical committees (IEC National Committees). The object of IEC is to promote international co-operatio
36、n on all questions concerning standardization in the electrical and electronic fields. To this end and in addition to other activities, IEC publishes International Standards, Technical Specifications, Technical Reports, Publicly Available Specifications (PAS) and Guides (hereafter referred to as “IE
37、C Publication(s)”). Their preparation is entrusted to technical committees; any IEC National Committee interested in the subject dealt with may participate in this preparatory work. International, governmental and non-governmental organizations liaising with the IEC also participate in this preparat
38、ion. IEC collaborates closely with the International Organization for Standardization (ISO) in accordance with conditions determined by agreement between the two organizations. 2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international consensu
39、s of opinion on the relevant subjects since each technical committee has representation from all interested IEC National Committees. 3) IEC Publications have the form of recommendations for international use and are accepted by IEC National Committees in that sense. While all reasonable efforts are
40、made to ensure that the technical content of IEC Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any misinterpretation by any end user. 4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications tran
41、sparently to the maximum extent possible in their national and regional publications. Any divergence between any IEC Publication and the corresponding national or regional publication shall be clearly indicated in the latter. 5) IEC provides no marking procedure to indicate its approval and cannot b
42、e rendered responsible for any equipment declared to be in conformity with an IEC Publication. 6) All users should ensure that they have the latest edition of this publication. 7) No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and member
43、s of its technical committees and IEC National Committees for any personal injury, property damage or other damage of any nature whatsoever, whether direct or indirect, or for costs (including legal fees) and expenses arising out of the publication, use of, or reliance upon, this IEC Publication or
44、any other IEC Publications. 8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is indispensable for the correct application of this publication. 9) Attention is drawn to the possibility that some of the elements of this IEC Publication may
45、 be the subject of patent rights. IEC shall not be held responsible for identifying any or all such patent rights. International Standard IEC 60974-11 has been prepared by IEC technical committee 26: Electric welding. This second edition cancels and replaces the first edition published in 1992. This
46、 edition constitutes a technical revision. This new edition aligns test conditions (environmental, rated current) with the other parts of the IEC 60974 series. The modification of EN 60974-11:1995 has been adopted. This part of IEC 60974 is to be used in conjunction with IEC 60974-1. 60974-11 IEC:20
47、04 9 The text of this standard is based on the following documents: FDIS Report on voting 26/283/FDIS 26/288/RVD Full information on the voting for the approval of this standard can be found in the report on voting indicated in the above table. This publication has been drafted in accordance with th
48、e ISO/IEC Directives, Part 2. The committee has decided that the contents of this publication will remain unchanged until the maintenance result date indicated on the IEC web site under “http:/webstore.iec.ch“ in the data related to the specific publication. At this date, the publication will be rec
49、onfirmed; withdrawn; replaced by a revised edition, or amended. ForewordDV.1 Modify the foreword by adding the following: The numbering system in this standard uses a space instead of a comma to indicate thousands and uses a comma instead of a period to indicate a decimal point. For example, 1 000 means 1,000 and 1,01 means 1.01. 60974-11 IEC:2004 10 ARC WELDING EQUIPMENT Part 11: Electrode holders GlobalDV.1 Throughout this document, replace the phrase “this part of IEC 60974“ with “this part of ANSI/IEC 60974“ 1 S
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