1、Resistance welding equipment Part 1: Safety requirements for design, manufacture and installationBS EN 62135-1:2008raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI British StandardsCopyright European Committee for Electrotechnical Standardization P
2、rovided by IHS under license with CENELECNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-National forewordThis British Standard is the UK implementation of EN 62135-1:2008. It isidentical to IEC 62135-1:2008. It supersedes BS 5924:1989 which is withdrawn.The UK par
3、ticipation in its preparation was entrusted to TechnicalCommittee WEE/29, Resistance welding.A list of organizations represented on this committee can be obtained onrequest to its secretary.This publication does not purport to include all the necessary provisionsof a contract. Users are responsible
4、for its correct application. BSI 2008ISBN 978 0 580 56067 5ICS 25.160.30BRITISH STANDARDBS EN 62135-1:2008Compliance with a British Standard cannot confer immunity fromlegal obligations.This British Standard was published under the authority of the StandardsPolicy and Strategy Committee on 31 March
5、2009 Amendments issued since publicationAmd. No. Date Text affectedCopyright European Committee for Electrotechnical Standardization Provided by IHS under license with CENELECNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-EUROPEAN STANDARD EN 62135-1 NORME EUROPEN
6、NE EUROPISCHE NORM November 2008 CENELEC European Committee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische Normung Central Secretariat: rue de Stassart 35, B - 1050 Brussels 2008 CENELEC - All rights of exploitation in an
7、y form and by any means reserved worldwide for CENELEC members. Ref. No. EN 62135-1:2008 E ICS 25.160 Supersedes EN 50063:1989English version Resistance welding equipment - Part 1: Safety requirements for design, manufacture and installation (IEC 62135-1:2008) Matriels de soudage par rsistance - Par
8、tie 1: Exigences de scurit pour la conception, la fabrication et linstallation (CEI 62135-1:2008) Widerstandsschweieinrichtungen - Teil 1: Sicherheitsanforderungen fr die Konstruktion, Herstellung und Errichtung (IEC 62135-1:2008) This European Standard was approved by CENELEC on 2008-10-01. CENELEC
9、 members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions 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 appl
10、ication to the Central Secretariat or to any CENELEC member. This European Standard exists in three 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 Secretar
11、iat has the same status as the official versions. CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Cyprus, the Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the Ne
12、therlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. BS EN 62135-1:2008Copyright European Committee for Electrotechnical Standardization Provided by IHS under license with CENELECNot for ResaleNo reproduction or networking permitted wit
13、hout license from IHS-,-,-EN 62135-1:2008 2 Foreword The text of document 26/377/FDIS, future edition 1 of IEC 62135-1, prepared by IEC TC 26, Electric welding, was submitted to the IEC-CENELEC parallel vote and was approved by CENELEC as EN 62135-1 on 2008-10-01. This European standard supersedes E
14、N 50063:1989 + corrigendum August 1990. The following dates were fixed: latest date by which the EN has to be implemented at national level by publication of an identical national standard or by endorsement (dop) 2009-01-01 latest date by which the national standards conflicting with the EN have to
15、be withdrawn (dow) 2011-10-01 Annex ZA has been added by CENELEC. _ Endorsement notice The text of the International Standard IEC 62135-1:2008 was approved by CENELEC as a European Standard without any modification. In the official version, for Bibliography, the following notes have to be added for
16、the standards indicated: IEC 60085 NOTE Harmonized as EN 60085:2008 (not modified). IEC 60112 NOTE Harmonized as EN 60112:2003 (not modified). IEC 60364 NOTE Harmonized in HD 384 / HD 60364 series (modified). IEC 60990 NOTE Harmonized as EN 60990:1999 (not modified). _ BS EN 62135-1:2008Copyright Eu
17、ropean Committee for Electrotechnical Standardization Provided by IHS under license with CENELECNot for ResaleNo reproduction or networking permitted without license from IHS-,-,- 3 EN 62135-1:2008 Annex ZA (normative) Normative references to international publications with their corresponding Europ
18、ean publications The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. NOTE When an international publi
19、cation has been modified by common modifications, indicated by (mod), the relevant EN/HD applies. Publication Year Title EN/HD Year IEC 60204-1 (mod) - 1)Safety of machinery - Electrical equipment of machines - Part 1: General requirements EN 60204-1 2006 2)IEC 60364-4-41 (mod) 2005 Low-voltage elec
20、trical installations - Part 4-41: Protection for safety - Protection against electric shock HD 60364-4-41 + corr. July 2007 2007 IEC 60364-6 (mod) - 1)Low voltage electrical installations - Part 6: Verification HD 60364-6 2007 2)IEC 60439-1 - 1)Low-voltage switchgear and controlgear assemblies - Par
21、t 1: Type-tested and partially type-tested assemblies EN 60439-1 1999 2)IEC 60529 - 1)Degrees of protection provided by enclosures (IP Code) EN 60529 + corr. May 1991 2)1993 IEC 60664-1 2007 Insulation coordination for equipment within low-voltage systems - Part 1: Principles, requirements and tests
22、 EN 60664-1 2007 IEC 60664-3 - 1)Insulation coordination for equipment within low-voltage systems - Part 3: Use of coating, potting or moulding for protection against pollution EN 60664-3 2003 2)IEC 61140 - 1)Protection against electric shock - Common aspects for installation and equipment EN 61140
23、2002 2)ISO 669 - 1)Resistance welding - Resistance welding equipment - Mechanical and electrical requirements - - ISO 5828 - 1)Resistance welding equipment - Secondary connecting cables with terminals connected to water-cooled lugs - Dimensions and characteristics EN ISO 5828 2001 2)ISO 8205-1 - 1)W
24、ater-cooled secondary connection cables for resistance welding - Part 1: Dimensions and requirements for double-conductor connection cables EN ISO 8205-1 2002 2)1)Undated reference. 2)Valid edition at date of issue. BS EN 62135-1:2008Copyright European Committee for Electrotechnical Standardization
25、Provided by IHS under license with CENELECNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-EN 62135-1:2008 4 Publication Year Title EN/HD Year ISO 8205-2 - 1)Water-cooled secondary connection cables for resistance welding - Part 2: Dimensions and requirements for si
26、ngle-conductor connection cables EN ISO 8205-2 2002 2)ISO 12100-1 - 1)Safety of machinery - Basic concepts, general principles for design - Part 1: Basic terminology, methodology EN ISO 12100-1 2003 2)ISO 12100-2 - 1)Safety of machinery - Basic concepts, general principles for design - Part 2: Techn
27、ical principles EN ISO 12100-2 2003 2)ISO 13849-1 - 1)Safety of machinery - Safety-related parts of control systems - Part 1: General principles for design EN ISO 13849-1 2006 2)ISO 14121-1 - 1)Safety of machinery - Risk assessment - Part 1: Principles EN ISO 14121-1 2001 2)BS EN 62135-1:2008Copyrig
28、ht European Committee for Electrotechnical Standardization Provided by IHS under license with CENELECNot for ResaleNo reproduction or networking permitted without license from IHS-,-,- 2 62135-1 IEC:2008 CONTENTS 1 Scope.7 2 Normative references .7 3 Terms and definitions.8 4 Environmental condition
29、s10 5 Tests 10 5.1 Test conditions10 5.2 Measuring instruments 10 5.3 Type tests .11 5.4 Routine tests .11 6 Protection against electric shock 11 6.1 General .11 6.2 Insulation 12 6.2.1 General .12 6.2.2 Clearances 12 6.2.3 Creepage distances.13 6.2.4 Insulation resistance14 6.2.5 Dielectric strengt
30、h .15 6.2.6 Liquid cooling 16 6.3 Protection against electric shock in normal service (direct contact) .16 6.3.1 General .16 6.3.2 Rated no-load voltage at the output .17 6.3.3 Protection provided by barriers or the enclosure17 6.3.4 Capacitors.17 6.3.5 Automatic discharge of input capacitors.18 6.3
31、.6 Protective conductor current under normal operation.18 6.4 Protection against electric shock in case of a fault condition (indirect contact) 19 6.4.1 General .19 6.4.2 Protective provisions for welding circuit .21 6.4.3 Internal conductors and connections33 6.4.4 Touch current in fault condition3
32、3 6.4.5 DC resistance welding equipment operating at mains frequency34 6.4.6 DC resistance welding equipment operating at medium frequency.34 6.4.7 Continuity of the protective bonding circuit 35 6.5 Additional user requirements .35 6.6 Supply voltage.35 6.7 Conductors of the welding circuit.35 7 Th
33、ermal requirements.35 7.1 Heating test.36 7.1.1 Test conditions 36 7.1.2 Tolerances of the test parameters .36 7.1.3 Beginning of the heating test .36 7.1.4 Duration of the test37 7.2 Temperature measurement37 7.2.1 Measurements conditions 37 7.2.2 Surface temperature sensor 37 BS EN 62135-1:2008Cop
34、yright European Committee for Electrotechnical Standardization Provided by IHS under license with CENELECNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-62135-1 IEC:2008 3 7.2.3 Resistance 37 7.2.4 Embedded temperature sensor38 7.2.5 Determination of the ambient te
35、mperature (ta).38 7.2.6 Determination of cooling liquid temperature (ta).38 7.2.7 Recording of temperatures 38 7.3 Limits of temperature rise38 7.3.1 Windings .38 7.3.2 External surfaces.39 7.3.3 Other components .40 8 Abnormal operation 40 8.1 General requirements40 8.2 Stalled fan test 40 8.3 Cool
36、ing system failure .40 8.4 Overload test.41 9 Provisions against mechanical hazards 41 9.1 General .41 9.2 Risk analysis .41 9.2.1 General .41 9.2.2 Ready to use equipment as in delivery state41 9.2.3 Equipment not ready to use as in delivery state.41 9.2.4 Equipment not ready to use and designed to
37、 be incorporated in a more complex equipment.42 9.3 Measures 42 9.3.1 Minimum measures42 9.3.2 Additional measures 42 9.4 Conformity of components.43 9.5 Starting for manual operated equipment 43 10 Instructions and markings.44 10.1 Instructions .44 10.2 Markings .44 Annex A (informative) Nominal vo
38、ltages of supply networks.45 Annex B (normative) Construction of supply circuit terminals .46 Annex C (informative) Extrapolation of temperature to time of shutdown48 Annex D (informative) Example of risk analysis and safety level requirement.49 Annex E (informative) Indirect contact protection in r
39、esistance welding equipment.53 Bibliography60 Figure 1 Measurement of leakage current 22 Figure 2 Example of metal screen between windings of the supply circuit and the welding circuit.23 Figure 3 Example of protective conductor connected directly to the welding circuit (single-spot, a.c. current eq
40、uipment).24 Figure 4 Example of protective conductor connected directly to welding circuits (multi-spot, a.c. current equipment) 24 Figure 5 Example of protective conductor connected direct to welding circuits (medium-frequency equipment).25 Figure 6 Example of protective conductor connected to weld
41、ing circuits through impedances 26 BS EN 62135-1:2008Copyright European Committee for Electrotechnical Standardization Provided by IHS under license with CENELECNot for ResaleNo reproduction or networking permitted without license from IHS-,-,- 4 62135-1 IEC:2008 Figure 7 Example of protective condu
42、ctor connected to welding circuits through auto-inductances 27 Figure 8 Example of protective conductor connected to welding circuits through auto-inductances 27 Figure 9 Example of current operated residual current device (a.c. current equipment) .28 Figure 10 Example of current operated residual c
43、urrent device (medium-frequency equipment) .29 Figure 11 Example of current operated residual current device and voltage relay 30 Figure 12 Example of current operated residual current device and safety voltage operated relay.31 Figure 13 Example of safety voltage operated relay.32 Figure 14 Measuri
44、ng network for leakage current.34 Figure E.1 Typical fault current 57 Figure E.2 Time-to-voltage reference curve .59 Table 1 Minimum clearances for overvoltage category III .12 Table 2 Minimum creepage distances 14 Table 3 Insulation resistance .15 Table 4 Dielectric test voltages 15 Table 5 Minimum
45、 distance through insulation.21 Table 6 Continuity of the protective bonding circuit 35 Table 7 Limits of temperature rise for windings 39 Table 8 Limits of temperature rise for external surfaces .39 Table B.1 Range of conductor dimensions to be accepted by the supply circuit terminals.46 Table B.2
46、Spacing between supply circuit terminals .47 BS EN 62135-1:2008Copyright European Committee for Electrotechnical Standardization Provided by IHS under license with CENELECNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-62135-1 IEC:2008 7 RESISTANCE WELDING EQUIPMEN
47、T Part 1: Safety requirements for design, manufacture and installation 1 Scope This part of IEC 62135 applies to equipment for resistance welding and allied processes and includes single and multiple welding stations which may be manually or automatically loaded and/or started. This standard covers
48、stationary and portable equipment. It specifies safety requirements for design, manufacture and installation. To comply with this standard, all safety risks involved in loading, feeding, operating and unloading the equipment, where applicable, should be assessed and the requirements of related standards should be observed. 2 Normative references The following normative documents contain provisions which, through reference in this text, constitute provisions of this part of IEC 62135
