1、NEMA Standards PublicationNational Electrical Manufacturers AssociationANSI/IEC 60974-5:2009 Arc Welding Equipment - Part 5: Wire FeedersApproved as an American National Standard ANSI Approval Date: April 13, 2009 Adoption of IEC 60974-5, Ed. 2 (2007) ANSI/IEC 60974-5:2009 Arc Welding Equipment Part
2、 5: Wire Feeders 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 under the Universal
3、 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 reproduced in any fo
4、rm, 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 persons engaged in
5、 the development and approval of the document at the time it was developed. Consensus does not necessarily mean that there is unanimous agreement among every person participating in the development of this document. The National Electrical Manufacturers Association (NEMA) standards and guideline pub
6、lications, 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 does not write the do
7、cument and it does not independently test, evaluate, or verify the accuracy or completeness of any information or the soundness of any judgments contained in its standards and guideline publications. NEMA disclaims liability for any personal injury, property, or other damages of any nature whatsoeve
8、r, whether special, indirect, consequential, or compensatory, directly or indirectly resulting from the publication, use of, application, or reliance on this document. NEMA disclaims and makes no guaranty or warranty, expressed or implied, as to the accuracy or completeness of any information publis
9、hed herein, and disclaims and makes no warranty that the information in this document will fulfill any of your particular purposes or needs. NEMA does not undertake to guarantee the performance of any individual manufacturer or sellers products or services by virtue of this standard or guide. In pub
10、lishing and making this document available, NEMA is not undertaking to render professional or other services for or on behalf of any person or entity, nor is NEMA undertaking to perform any duty owed by any person or entity to someone else. Anyone using this document should rely on his or her own in
11、dependent judgment or, as appropriate, seek the advice of a competent professional in determining the exercise of reasonable care in any given circumstances. Information and other standards on the topic covered by this publication may be available from other sources, which the user may wish to consu
12、lt for additional views or information not covered by this publication. NEMA has no power, nor does it undertake to police or enforce compliance with the contents of this document. NEMA does not certify, test, or inspect products, designs, or installations for safety or health purposes. Any certific
13、ation or other statement of compliance with any health or safety-related information in this document shall not be attributable to NEMA and is solely the responsibility of the certifier or maker of the statement. AMERICAN NATIONAL STANDARD Approval of an American National Standard requires verificat
14、ion 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 materially affected int
15、erests. 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 voluntary; their exis
16、tence 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 and will in no cir
17、cumstances 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 addressed to the sec
18、retariat 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, revise, or withdraw t
19、his 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 2009 by National El
20、ectrical 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. No part of this
21、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.- 5 - ANSI/IEC 60974-5-2009 FOREWORD FOR U.S. ADOPTION This American National S
22、tandard is an adoption of IEC 60974-5 edition 2, Arc welding equipmentPart 5: Wire feeders, and was developed and approved in accordance with procedures set forth by the American National Standards Institute. It is the intention that this American National Standard be a standalone document, replacin
23、g the use of IEC 60974-5 in the U.S. As such, any reference in this standard to an IEC 60974 part is understood to mean a reference to the equivalent ANSI/IEC 60974 part, where it exists. This standard contains all the original text as-is from IEC 60974-5, edition 2, in addition to a number of U.S.
24、Differences to the IEC standard that were identified by Accredited Standards Committee W1, Requirements for Apparatus 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 insert
25、ed in the appropriate place(s) in the standard relating to the difference. Each insertion is in red text and is marked on its left by three lines (two thin, one thick). Each U.S. Difference is identified with the following format: Clause/Subclause NumberDV.Number of Difference for the Given Clause/S
26、ubclause Following this format, the example 17.1DV.3 signifies that it is the third U.S. Difference to subclause 17.1. Suggestions 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 Secr
27、etary c/o National Electrical Manufacturers Association 1300 North 17th Street, Suite 1752 Rosslyn, VA 22209 Fax 703-841-3399 Email gre_winchesternema.org This standard was processed and approved by the Accredited Standards Committee W1. Committee approval does not necessarily imply that all Committ
28、ee members voted for its approval. At the time this standard was approved, Accredited Standards Committee W1 consisted of the following members: John Freudenberg, Chairman Wayne Hoffman, Vice Chairman Greg Winchester, Secretary Organization Represented Name of Representative American Welding Society
29、 Andrew Davis principal Dick Holdren alternate CenterLine (Windsor) Limited David Beneteau CSA International Andrew Krumins ESAB Welding and Cutting Charles Aimar Hypertherm Inc. Tony Zeller principal Bill Lynn alternate Lincoln Electric Company Frank Stupczy principal Gary Mikitin alternate Miller
30、Electric Manufacturing Company David Werba principal Terry Christianson-Plato alternate Mike Madsen alternate Northeast Product Safety Society John Freudenberg Wayne Hoffman Consultant / U.S. Technical Advisor, IEC TC 26 Wayne Hoffman ANSI/IEC 60974-5-2009 - 6 - COMPILATION OF U.S. DIFFERENCES NOTE
31、This section is an integral part of American National Standard ANSI/IEC 60974-5. See the section “Foreword for U.S. Adoption“ for an explanation of the format used to identify U.S. Differences. GlobalDV.1 Throughout this document, replace the phrase “this part of IEC 60974“ with “this part of ANSI/I
32、EC 60974“ 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. 2DV.1 Modify clause 2
33、by changing the IEC 60529 reference to the following: IEC 60529, Degrees of protection provided by enclosures (IP Code) 2DV.2 Modify clause 2 by replacing the reference to IEC 60974-1 with a reference to ANSI/IEC 60974-1 and adding the following text and note: All subsequent references in this stand
34、ard to IEC 60974-1 shall be a reference to ANSI/IEC 60974-1. NOTE ANSI/IEC 60974-1-2008 contains the entire original text from IEC 60974-1:2005 plus U.S. Differences. 2DV.3 Modify clause 2 by replacing the reference to IEC 60974-7 with a reference to ANSI/IEC 60974-7 and adding the following text at
35、 the end of the clause: All subsequent references in this standard to IEC 60974-7 shall be a reference to ANSI/IEC 60974-7. NOTE ANSI/IEC 60974-7-2009 contains the entire original text from IEC 60974-7:2005 plus U.S. Differences. 2DV.4 Modify clause 2 by deleting the normative reference to IEC 60974
36、-10 9DV.1 Modify clause 9 by replacing list item (b) with the following text: b) for parts within restricted access areas, e.g., robotic applications, the limits of Table 7 may be exceeded for surfaces that are marked with the following symbol IEC 60417-5041 (DB:2002-10): 13.1DV.1 Modify 13.1 by del
37、eting list item (p) - 7 - 60974-5 IEC:2007 CONTENTS FOREWORD.9 1 Scope.11 2 Normative references .11 3 Terms and definitions .12 4 Environmental conditions13 5 Tests 13 5.1 Test conditions 13 5.2 Measuring instruments 13 5.3 Conformity of components.13 5.4 Type tests .13 5.5 Routine tests .14 6 Prot
38、ection against electric shock 14 6.1 Insulation 14 6.2 Protection against electric shock in normal service (direct contact)14 6.2.1 Protection provided by the enclosure .14 6.2.2 Capacitors .15 6.2.3 Automatic discharge of input capacitors.15 6.3 Protection against electric shock in case of a fault
39、condition (indirect contact).15 6.3.1 Isolation of the supply circuit and the welding circuit15 6.3.2 Isolation of the welding circuit from the frame 15 6.3.3 Internal conductors and connections15 6.4 Rated supply voltage .15 6.5 Protective provisions .15 6.6 Overcurrent protection of the supply cir
40、cuit16 6.7 Cable anchorage .16 6.8 Auxiliary power output .16 6.9 Inlet opening .16 6.10 Control circuits 16 6.11 Insulation of hanging means16 7 Liquid cooling system .16 8 Shielding gas supply.17 9 Thermal requirements.17 10 Mechanical provisions 18 10.1 Wire feeder .18 10.2 Enclosure strength 18
41、10.3 Handling means 18 10.4 Drop withstand 18 10.5 Tilting stability .18 10.6 Filler wire supply .18 10.6.1 Filler wire supply mounting 18 10.6.2 Wire spool retaining device18 60974-5 IEC:2007 - 8 - 10.6.3 Filler wire over-run.19 10.7 Feeding .19 10.8 Protection against mechanical hazards19 11 Ratin
42、g plate20 11.1 General .20 11.2 Description 20 11.3 Contents21 12 Indication of wire-feed speed21 13 Instructions and markings.21 13.1 Instructions21 13.2 Markings .22 Annex A (normative) Determination of the variation in wire-feed speed 23 Annex B (informative) Example for a rating plate of a stand
43、-alone wire feeder .25 Figure 1 Principle of the rating plate of stand-alone wire feeder .20 Table 1 Minimum degree of protection .14 - 9 - 60974-5 IEC:2007 INTERNATIONAL ELECTROTECHNICAL COMMISSION _ ARC WELDING EQUIPMENT Part 5: Wire feeders FOREWORD 1) The International Electrotechnical Commissio
44、n (IEC) is a worldwide organization for standardization comprising all national electrotechnical committees (IEC National Committees). The object of IEC is to promote international co-operation on all questions concerning standardization in the electrical and electronic fields. To this end and in ad
45、dition to other activities, IEC publishes International Standards, Technical Specifications, Technical Reports, Publicly Available Specifications (PAS) and Guides (hereafter referred to as “IEC Publication(s)”). Their preparation is entrusted to technical committees; any IEC National Committee inter
46、ested in the subject dealt with may participate in this preparatory work. International, governmental and nongovernmental organizations liaising with the IEC also participate in this preparation. IEC collaborates closely with the International Organization for Standardization (ISO) in accordance wit
47、h 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 consensus of opinion on the relevant subjects since each technical committee has representation from all interested I
48、EC 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 made to ensure that the technical content of IEC Publications is accurate, IEC cannot be held responsible for
49、 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 transparently 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 be rendered responsible for any equipment declared to
