BS EN 60974-5-2008 Arc welding equipment — Part 5 Wire feeders.pdf
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1、BRITISH STANDARD BS EN 60974-5:2008 Arc welding equipment Part 5: Wire feeders ICS 25.160.30 ? BS EN 60974-5:2008 This British Standard was published under the authority of the Standards Policy and Strategy Committee on 28 February 2009 BSI 2009 ISBN 978 0 580 56864 0 National foreword This British
2、Standard is the UK implementation of EN 60974-5:2008. It is identical to IEC 60974-5:2007. It supersedes BS EN 60974-5:2002 which is withdrawn. The UK participation in its preparation was entrusted to Technical Committee WEE/6, Electric arc welding equipment. A list of organizations represented on t
3、his committee can be obtained on request to its secretary. This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. Compliance with a British Standard cannot confer immunity from legal obligations. Amendments/corrigen
4、da issued since publication DateComments EUROPEAN STANDARD EN 60974-5 NORME EUROPENNE EUROPISCHE NORM February 2008 CENELEC European Committee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische Normung Central Secretariat: ru
5、e de Stassart 35, B - 1050 Brussels 2008 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members. Ref. No. EN 60974-5:2008 E ICS 25.160 Supersedes EN 60974-5:2002 English version Arc welding equipment - Part 5: Wire feeders (IEC 60974-5:2007) Matriel
6、de soudage larc - Partie 5: Dvidoirs (CEI 60974-5:2007) Lichtbogenschweieinrichtungen - Teil 5: Drahtvorschubgerte (IEC 60974-5:2007) This European Standard was approved by CENELEC on 2008-02-01. CENELEC members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the condit
7、ions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the Central Secretariat or to any CENELEC member. This European Standard exists in thr
8、ee official versions (English, French, German). A version in any other language made by translation under the responsibility of a CENELEC member into its own language and notified to the Central Secretariat has the same status as the official versions. CENELEC members are the national electrotechnic
9、al committees of Austria, Belgium, Bulgaria, Cyprus, the Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and
10、the United Kingdom. Foreword The text of document 26/364/FDIS, future edition 2 of IEC 60974-5, prepared by IEC TC 26, Electric welding, was submitted to the IEC-CENELEC parallel vote and was approved by CENELEC as EN 60974-5 on 2008-02-01. This European Standard supersedes EN 60974-5:2002. EN 60974
11、-5:2007 includes the following significant technical changes with respect to EN 60974-5:2002: changes induced by the publication of EN 60974-1:2005; EN 60974-5 is not applicable to spool-on torches that EN 60974-7 covers (see Clause 1); EN 60974-5 is not applicable to wire feeders which are designed
12、 for use by laymen that EN 60974-6 covers (see Clause 1); wire feeders with degree of protection IP23S may be stored, but are not intended to be used outside during precipitation unless sheltered (see 6.2.1 and Table 1); withdrawal of voltage limitation for input supply network (see 6.4); protective
13、 connection provision for welding circuit (see 6.5); addition of tilting stability (see 10.5); clarification of the definition of the thermal requirement test. The manufacturer gives the maximum load (see Clause 9); introduction of rating plate layout for stand-alone wire feeder (see 11.2); introduc
14、tion of new combined symbols for liquid/gas input and output based on EN 60974-1 (see 13.2). This standard is to be used in conjunction with EN 60974-1:2005 and EN 60974-7:2005. The following dates were fixed: latest date by which the EN has to be implemented at national level by publication of an i
15、dentical national standard or by endorsement (dop) 2008-11-01 latest date by which the national standards conflicting with the EN have to be withdrawn (dow) 2011-02-01 Annex ZA has been added by CENELEC. _ Endorsement notice The text of the International Standard IEC 60974-5:2007 was approved by CEN
16、ELEC as a European Standard without any modification. _ 2 EN 60974-5:2008 w w w . b z f x w . c o m CONTENTS 1 Scope.5 2 Normative references .5 3 Terms and definitions .5 4 Environmental conditions6 5 Tests6 5.1 Test conditions6 5.2 Measuring instruments 7 5.3 Conformity of components.7 5.4 Type te
17、sts .7 5.5 Routine tests.7 6 Protection against electric shock 7 6.1 Insulation 7 6.2 Protection against electric shock in normal service (direct contact) .7 6.2.1 Protection provided by the enclosure.7 6.2.2 Capacitors.8 6.2.3 Automatic discharge of input capacitors.8 6.3 Protection against electri
18、c shock in case of a fault condition (indirect contact) 8 6.3.1 Isolation of the supply circuit and the welding circuit8 6.3.2 Isolation of the welding circuit from the frame8 6.3.3 Internal conductors and connections9 6.4 Rated supply voltage.9 6.5 Protective provisions .9 6.6 Overcurrent protectio
19、n of the supply circuit .9 6.7 Cable anchorage.9 6.8 Auxiliary power output.9 6.9 Inlet opening .9 6.10 Control circuits 10 6.11 Insulation of hanging means10 7 Liquid cooling system .10 8 Shielding gas supply 10 9 Thermal requirements.10 10 Mechanical provisions 11 10.1 Wire feeder .11 10.2 Enclosu
20、re strength 11 10.3 Handling means 11 10.4 Drop withstand 11 10.5 Tilting stability.11 10.6 Filler wire supply .12 10.6.1 Filler wire supply mounting 12 10.6.2 Wire spool retaining device12 10.6.3 Filler wire over-run 12 10.7 Feeding.12 10.8 Protection against mechanical hazards13 3 EN 60974-5:2008
21、w w w . b z f x w . c o m 11.1 General.13 11.2 Description13 11.3 Contents .14 12 Indication of wire-feed speed14 13 Instructions and markings.15 13.1 Instructions .15 13.2 Markings .16 Annex A (normative) Determination of the variation in wire-feed speed17 Annex B (informative) Example for a rating
22、 plate of a stand-alone wire feeder .19 Figure 1 Principle of the rating plate of stand-alone wire feeder.14 Table 1 Minimum degree of protection .8 Annex ZA (normative) Normative references to international publications with their corresponding European publications 20 4 11 Rating plate13 EN 60974-
23、5:2008 w w w . b z f x w . c o m 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 feeder may be a stand-alone unit w
24、hich 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 to spool-on torches that are cove
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