IEC 60974-5-2013 Arc welding equipment - Part 5 Wire feeders《电弧焊设备.第5部分 焊丝进料装置》.pdf

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1、 IEC 60974-5 Edition 3.0 2013-05 INTERNATIONAL STANDARD NORME INTERNATIONALE Arc welding equipment Part 5: Wire feeders Matriel de soudage larc Partie 5: Dvidoirs IEC 60974-5:2013 THIS PUBLICATION IS COPYRIGHT PROTECTED Copyright 2013 IEC, Geneva, Switzerland All rights reserved. Unless otherwise sp

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15、 Si vous dsirez nous donner des commentaires sur cette publication ou si vous avez des questions contactez-nous: csciec.ch. IEC 60974-5 Edition 3.0 2013-05 INTERNATIONAL STANDARD NORME INTERNATIONALE Arc welding equipment Part 5: Wire feeders Matriel de soudage larc Partie 5: Dvidoirs INTERNATIONAL

16、ELECTROTECHNICAL COMMISSION COMMISSION ELECTROTECHNIQUE INTERNATIONALE S ICS 25.160 PRICE CODE CODE PRIX ISBN 978-2-83220-825-0 Registered trademark of the International Electrotechnical Commission Marque dpose de la Commission Electrotechnique Internationale Warning! Make sure that you obtained thi

17、s publication from an authorized distributor. Attention! Veuillez vous assurer que vous avez obtenu cette publication via un distributeur agr. 2 60974-5 IEC:2013 CONTENTS FOREWORD . 4 1 Scope . 6 2 Normative references . 6 3 Terms and definitions . 6 4 Environmental conditions 7 5 Tests 7 5.1 Test c

18、onditions 7 5.2 Measuring instruments 7 5.3 Conformity of components . 8 5.4 Type tests . 8 5.5 Routine tests . 8 6 Protection against electric shock 8 6.1 Insulation 8 6.2 Protection against electric shock in normal service (direct contact) . 8 6.2.1 Protection provided by the enclosure . 8 6.2.2 C

19、apacitors . 9 6.2.3 Automatic discharge of supply circuit capacitors 9 6.2.4 Isolation of the welding circuit 9 6.2.5 Welding circuit touch current . 9 6.2.6 Touch current in normal condition 9 6.3 Protection against electric shock in case of a fault condition (indirect contact) 10 6.3.1 Protective

20、provisions . 10 6.3.2 Isolation between windings of the supply circuit and the welding circuit 10 6.3.3 Internal conductors and connections 10 6.3.4 Isolation of the welding circuit from the frame 10 6.3.5 Touch current in fault condition 10 6.4 Supply voltage . 10 6.5 Protective provisions . 10 6.6

21、 Overcurrent protection of the supply circuit 11 6.7 Cable anchorage . 11 6.8 Auxiliary power supply . 11 6.9 Inlet openings 11 6.10 Control circuits 11 6.11 Isolation of hanging means 11 7 Liquid cooling system . 11 8 Shielding gas supply. 11 9 Thermal requirements . 12 10 Mechanical provisions 12

22、10.1 Wire feeder . 12 10.2 Enclosure strength 12 10.3 Handling means 13 10.4 Drop withstand 13 10.5 Tilting stability . 13 10.6 Filler wire supply . 13 60974-5 IEC:2013 3 10.6.1 Filler wire supply mounting 13 10.6.2 Wire spool retaining device 13 10.6.3 Filler wire over-run 13 10.7 Feeding . 14 10.8

23、 Protection against mechanical hazards 14 11 Rating plate 15 11.1 General . 15 11.2 Description 15 11.3 Contents 15 12 Indication of wire-feed speed 16 13 Instructions and markings . 16 13.1 Instructions . 16 13.2 Markings . 17 Annex A (normative) Determination of the variation in wire-feed speed 18

24、 Annex B (informative) Example for a rating plate of a stand-alone wire feeder . 20 Bibliography 21 Figure 1 Principle of the rating plate of stand-alone wire feeder . 15 Table 1 Minimum degree of protection . 9 4 60974-5 IEC:2013 INTERNATIONAL ELECTROTECHNICAL COMMISSION _ ARC WELDING EQUIPMENT Par

25、t 5: Wire feeders 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-operation on all questions concerning stan

26、dardization 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 “IEC Publication(s)”). Their preparat

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32、ormity assessment services and, in some areas, access to IEC marks of conformity. IEC is not responsible for any services carried out by independent certification bodies. 6) All users should ensure that they have the latest edition of this publication. 7) No liability shall attach to IEC or its dire

33、ctors, employees, servants or agents including individual experts and members 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 arisin

34、g out of the publication, use of, or reliance upon, this IEC Publication or 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 dr

35、awn to the possibility that some of the elements of this IEC Publication may be the subject of patent rights. IEC shall not be held responsible for identifying any or all such patent rights. International Standard IEC 60974-5 has been prepared by IEC technical committee 26: Electric welding. This th

36、ird edition cancels and replaces the second edition published in 2007 and constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: changes induced by the publication of IEC 60974-1:2012; addition of a new symbol for hot

37、 surface (as specified in Clause 9); determination of the maximum load in accordance with 10.7. 60974-5 IEC:2013 5 The text of this standard is based on the following documents: FDIS Report on voting 26/503/FDIS 26/507/RVD Full information on the voting for the approval of this standard can be found

38、 in the report on voting indicated in the above table. This publication has been drafted in accordance with the ISO/IEC Directives, Part 2. This standard shall be used in conjunction with IEC 60974-1. The list of all the parts of IEC 60974, under the general title Arc welding equipment, can be found

39、 on the IEC web site. The committee has decided that the contents of this publication will remain unchanged until the stability 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 reconfirmed, withdra

40、wn, replaced by a revised edition, or amended. 6 60974-5 IEC:2013 ARC WELDING EQUIPMENT Part 5: Wire feeders 1 Scope This part of IEC 60974 specifies safety and performance requirements for industrial and professional equipment used in arc welding and allied processes to feed filler wire. The wire f

41、eeder may be a stand-alone unit which may be connected to a separate welding power source or one where the welding power source and the wire feeder are housed in a single enclosure. The wire feeder may be suitable for manually or mechanically guided torches. This part of IEC 60974 is not applicable

42、to spool-on torches that are covered by IEC 60974-7. This part of IEC 60974 is not applicable to wire feeders which are designed mainly for use by laymen and design in accordance with IEC 60974-6. NOTE 1 Typical allied processes are electric arc cutting and arc spraying. NOTE 2 This standard does no

43、t include electromagnetic compatibility (EMC) requirements. 2 Normative references The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the la

44、test edition of the referenced document (including any amendments) applies. IEC 60050-195, International Electrotechnical Vocabulary (IEV) Part 195: Earthing and protection against electric shock IEC 60529, Degrees of protection provided by enclosures (IP Code) IEC 60974-1:2012, Arc welding equipmen

45、t Part 1: Welding power sources IEC 60974-7, Arc welding equipment Part 7: Torches IEC 60974-10, Arc welding equipment Part 10: Electromagnetic compatibility (EMC) requirements IEC 61140, Protection against electric shock Common aspects for installation and equipment 3 Terms and definitions For the

46、purposes of this document, the terms and definitions given in IEC 60050-195, IEC 60974-1, and IEC 60974-7, as well as the following apply. 60974-5 IEC:2013 7 3.1 drive roll roll in contact with the filler wire and which transfers mechanical power to the filler wire 3.2 filler wire supply source of f

47、iller wire and means for dispensing filler wire to the feeding mechanism 3.3 liner replaceable component that guides the filler wire 3.4 maximum load maximum value of the force required to feed the specified types and sizes of filler wires over the rated speed range 3.5 rated speed range speed range

48、 of the filler wire assigned by the manufacturer for each specified size of filler wire 3.6 rated supply current I 1r.m.s. value of an input current to the wire feeder at maximum load 3.7 wire-feed control electrical or mechanical apparatus, or both, which control(s) the speed of the filler wire, th

49、e sequence of operations and other services as required Note 1 to entry: The wire feed control may be integral with the wire feeder or in a separate enclosure. 3.8 wire feeder equipment that delivers filler wire to the arc or weld zone which includes means to apply motion to the filler wire Note 1 to entry: The wire feeder may also include the wire-feed control, the filler wire supply, devices for gas control, indicators a