BS EN 60974-4:2016
$102.76
Arc welding equipment – Periodic inspection and testing
| Published By | Publication Date | Number of Pages |
| BSI | 2016 | 22 |
This part of IEC 60974 specifies test procedures for periodic inspection and, after repair, to ensure electrical safety. These test procedures are also applicable for maintenance.
This standard is applicable to power sources for arc welding and allied processes designed in accordance with IEC 60974‑1 or IEC 60974‑6 . Stand-alone ancillary equipment designed in accordance with other parts of IEC 60974 may be tested in accordance with relevant requirements of this part of IEC 60974 .
The welding power source can be tested with any ancillary equipment fitted that can affect the test results.
This standard is not applicable to testing of new power sources or engine-driven power sources.
For a power source not built in accordance with IEC 60974‑1, see Annex C.
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 6 | English CONTENTS |
| 7 | FOREWORD |
| 9 | 1 Scope 2 Normative references 3 Terms and definitions |
| 10 | 4 General requirements 4.1 Qualification of test personnel 4.2 Test conditions 4.3 Measuring instruments |
| 11 | 4.4 Periodic inspection and test 4.5 Maintenance 4.6 Repair 4.7 Test sequence |
| 12 | 5 Protection against electrical shock 5.1 Visual inspection 5.2 Continuity of the protective circuit Table 1 – Test sequence on used arc welding equipment |
| 13 | 5.3 Insulation resistance 5.4 Welding circuit touch current Figures Figure 1 – Measurement of welding circuit touch current Table 2 – Insulation resistance |
| 14 | 5.5 Touch current in normal condition 5.6 Protective conductor current Figure 2 – Measurement of touch current in normal condition |
| 15 | 5.7 No-load voltage (U0) Figure 3 – Principles of protective conductor current measurementfor single phase equipment |
| 16 | 6 Functional test 6.1 Function 6.2 Supply-circuit on/off switching device 6.3 Voltage-reducing device Figure 4 – Measurement of peak values |
| 17 | 6.4 Magnetic gas valve 6.5 Signal and control lamps 7 Documentation 7.1 Test report 7.2 Labelling |
| 18 | Annex A (informative) Check-list for the visual inspection |
| 19 | Annex B (informative) Example of a test report after repair |
| 20 | Annex C (informative) Equipment not built in accordance with IEC 60974-1 |
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BS EN 60974-4:2016 – TC:2020 Edition
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