BS EN 60974-4:2007 - Arc welding equipment. In-service inspection and testing – BSI British Standards
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BS EN 60974-4:2007

Arc welding equipment. In-service inspection and testing

Status : Revised, Withdrawn   Published : March 2007 Replaced By : BS EN 60974-4:2011

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This part of BS EN 60974 specifies test procedures for in-service inspection and, after repair, to ensure electrical safety. These test procedures are also applicable for maintenance.

This standard is applicable to power sources together with ancillary equipment for arc welding, cutting and allied processes built in conformity with IEC 60974-1.

This standard is not applicable to testing of new power sources or engine-driven power sources.

Contents include:

  • Normative references
  • Terms and definitions
  • General requirements
  • Qualification of test personnel
  • Test conditions
  • Measuring instruments
  • Periodic inspection and test
  • Maintenance
  • Repair
  • Test sequence
  • Protection against electrical shock
  • Visual inspection
  • Continuity of the protective circuit
  • Insulation resistance
  • Welding circuit leakage current
  • Primary leakage current
  • No-load voltage (U0)
  • Functional test
  • Function
  • Supply-circuit on/off switching device
  • Voltage-reducing device
  • Magnetic gas valve
  • Signal and control lamps
  • Documentation
  • Test report
  • Labelling
  • Check-list for the visual inspection
  • Example of a test report after repair
  • Equipment not built in accordance with IEC 60974-1
  • Normative references to international publications with their corresponding European publications

Figures and tables:

  • Measurement of leakage current of welding circuit
  • Measuring network for primary leakage current
  • Principles of primary leakage current measurement for single phase equipment
  • Measurement of peak values
  • Test sequence on used arc welding equipment
  • Insulation resistance

Standard NumberBS EN 60974-4:2007
TitleArc welding equipment. In-service inspection and testing
StatusRevised, Withdrawn
Publication Date30 March 2007
Withdrawn Date31 May 2011
Normative References(Required to achieve compliance to this standard)EN 60974-1:2005, IEC 60050-195, IEC 60050-851, IEC 61557-4, IEC 60974-1:2017, IEC 60050-151
Informative References(Provided for Information)No other standards are informatively referenced
Replaced ByBS EN 60974-4:2011
International RelationshipsEN 60974-4:2007,IEC 60974-4:2006
Draft Superseded By04/30122740 DC
DescriptorsPersonnel, Visual inspection (testing), Welding equipment, Welding, Inspection, Arc-welding equipment, Electrical testing, Maintenance, Electric power systems, Repair, Electrical safety, Arc welding
Title in FrenchMatériel de soudage à l'arc. Inspection et essais en service
Title in GermanLichtbogenschweißeinrichtungen. Instandhaltung und Prüfung
ISBN978 0 580 50304 7
File Size922 KB

*To ask about withdrawn titles contact the
Customer Relations, +44 345 086 9001
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