BS EN 60974-6:2016
$167.15
Arc welding equipment – Limited duty equipment
Published By | Publication Date | Number of Pages |
BSI | 2016 | 44 |
This part of IEC 60974 specifies safety and performance requirements applicable to limited duty arc welding and cutting power sources and auxiliaries designed for use by laymen. Electrically powered equipment is intended to be connected to the single phase public low-voltage supply system. Engine driven power sources cannot exceed output power of 7,5 kVA.
This equipment is typically used by non-professionals in residential areas.
This part of IEC 60974 is not applicable to arc welding and cutting power sources that require for operation:
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arc striking and stabilizing devices;
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liquid cooling systems;
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gas consoles;
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three-phase input supply;
and which are intended for industrial and professional use only.
This part of IEC 60974 is not applicable to arc welding and cutting power sources and ancillary equipment used in:
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mechanically guided applications;
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submerged arc welding process;
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plasma gouging process;
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plasma welding process;
that are covered by other parts of IEC 60974 .
Power sources, wire feeders, torches and electrode holders designed for industrial and professional use are respectively covered by IEC 60974‑1 , IEC 60974‑5 , IEC 60974‑7 and IEC 60974‑11 .
This part of IEC 60974 does not specify electromagnetic compatibility (EMC) requirements that are given in IEC 60974‑10 .
PDF Catalog
PDF Pages | PDF Title |
---|---|
4 | European foreword Endorsement notice |
5 | Annex ZA (normative) Normative references to international publications with their corresponding European publications |
6 | English CONTENTS |
10 | FOREWORD |
12 | 1 Scope 2 Normative references |
13 | 3 Terms and definitions |
14 | 4 Environmental conditions 5 Tests 5.1 Test conditions 5.2 Measuring instruments 5.3 Conformity of components 5.4 Type tests |
15 | 5.5 Routine tests 6 Protection against electric shock 6.1 Insulation 6.1.1 General 6.1.2 Clearances 6.1.3 Creepage distances |
16 | 6.1.4 Insulation resistance 6.1.5 Dielectric strength 6.2 Protection against electric shock in normal service (direct contact) 6.2.1 Protection provided by the enclosure 6.2.2 Capacitors |
17 | 6.2.3 Automatic discharge of supply circuit capacitors 6.3 Protection against electric shock in case of a fault condition (indirect contact) 6.3.1 Protective provisions 6.3.2 Isolation between windings of the supply circuit and the welding circuit 6.3.3 Internal conductors and connections 6.3.4 Additional requirements for plasma cutting systems 6.3.5 Movable coils and cores 6.3.6 Touch current in fault condition |
18 | Figures Figure 1 – Measurement of touch current in fault condition Figure 2 – Measuring network for weighted touch current |
19 | 7 Thermal requirements 7.1 Devices for thermal protection and thermal control 7.2 Heating test 7.2.1 Test conditions 7.2.2 Tolerances of the test parameters 7.2.3 Rated maximum welding current |
20 | 7.2.4 Calculation 7.3 Temperature measurement 7.3.1 Measurement condition 7.3.2 Surface temperature sensor 7.3.3 Resistance 7.3.4 Embedded temperature sensor 7.3.5 Determination of the ambient air temperature |
21 | 7.3.6 Recording of temperatures 7.4 Limits of temperature 7.4.1 Windings, commutators and slip-rings 7.4.2 External surfaces 7.4.3 Other components 7.5 Loading test Tables Table 1 – Temperature limits according to the class of insulation |
22 | 7.6 Commutators and slip-rings 8 Thermal control device 8.1 Construction 8.2 Location 8.3 Operation 8.4 Resetting |
23 | 8.5 Operating capacity 8.6 Indication 9 Thermal protection 9.1 Construction 9.2 Location 9.3 Operation |
24 | 10 Abnormal operation 10.1 General requirements 10.2 Stalled fan test 10.3 Short circuit test Table 2 – Maximum temperature limits |
25 | 11 Connection to the input supply network 11.1 Input supply 11.1.1 Supply voltage 11.1.2 Supply current 11.1.3 Engine driven welding power source 11.2 Multi supply voltage 11.3 Means of connection to the supply circuit 11.4 Supply circuit terminals |
26 | 11.5 Cable anchorage 11.6 Inlet openings 11.7 Supply circuit on/off switching device 11.8 Supply cables 11.9 Supply coupling device (attachment plug) 12 Output 12.1 Rated no-load voltage 12.1.1 Rated no-load voltage for arc welding power source |
27 | 12.1.2 Rated no-load voltage for plasma cutting power source 12.1.3 Additional requirements |
28 | 12.1.4 Measuring circuit Figure 3 – Measurement of r.m.s values Table 3 – Summary of rated no-load voltages |
29 | 12.2 Type test values of the conventional load voltage 12.2.1 Manual metal arc welding with covered electrodes 12.2.2 Tungsten inert gas arc welding 12.2.3 Metal inert/active gas and flux cored arc welding 12.2.4 Plasma cutting 12.2.5 Additional requirements Figure 4 – Measurement of peak values |
30 | 12.3 Mechanical switching devices used to adjust output 12.4 Welding circuit connections 12.4.1 Protection against unintentional contact 12.4.2 Location of coupling devices 12.4.3 Outlet openings 12.4.4 Marking 12.4.5 Connections for plasma cutting torches 12.5 Power supply to external devices 12.6 Auxiliary power output 12.7 Welding cables 13 Control circuits 14 Hazard reducing device |
31 | 15 Mechanical provisions 15.1 General requirements 15.2 Enclosure 15.2.1 Enclosure materials 15.2.2 Enclosure strength 15.3 Handling means 15.4 Drop withstand 15.5 Tilting stability 16 Auxiliaries 16.1 General 16.2 Wire feeder 16.2.1 General 16.2.2 Test conditions Table 4 – Hazard reducing device requirements for plasma cutting power source |
32 | 16.2.3 Thermal requirements 16.2.4 Protection against unintentional contact 16.3 Torch 16.3.1 General 16.3.2 Test conditions 16.3.3 Thermal requirements 16.4 Electrode holder 16.5 Pressure regulator 17 Rating plate 17.1 General requirements 17.2 Description |
33 | 17.3 Contents Figure 5 – Principle of the rating plate |
35 | 17.4 Tolerances |
36 | 18 Adjustment of the output 19 Instructions and markings 19.1 Instructions 19.1.1 General 19.1.2 Instruction manual 19.1.3 Safety instructions |
37 | 19.2 Markings |
39 | Annex A (informative) Test probes Figure A.1 – Test probe 12 of IEC 61032 Figure A.2 – Test probe 13 of IEC 61032 |
40 | Annex B (informative) Examples of rating plates Figure B.1 – Rating plate |
41 | Annex C (informative) Symbols-only precautionary label Figure C.1 – Example of precautionary label for engine driven manual metal arc welding power source |
42 | Bibliography |