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Visual inspection
General
During a visual inspection, the tests described below are to be carried out without further
dismantling of the equipment. Safety related parts must not show any visible defects. Fur-
thermore, defects which may present a hazard during the visual inspection must be written
down.
Deficiencies identified that may be the cause of other hazards must be repaired immedi-
ately, otherwise further use must be restricted until the defect is rectified.
General condi-
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tions
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Welding torch /
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electrode holder /
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welding current
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return terminal
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Grid power sup-
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ply and connec-
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tion cables
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IMPORTANT!
To determine the cross-section and current carrying capacity of mains cables, ob-
serve the relevant standard.
As the current carrying capacity can vary due to the cable layout and its insulation and dif-
fering ambient temperatures, when the mains lead is replaced the requirements of the
standard must be met. Individual national requirements and standards must also be ob-
served.
Welding circuit
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36
There must be no significant dust and contamination
Gas lines and connections must not be faulty or defective
Marks and labels (rating plates, warning stickers, grounding symbols, etc.) must be
present and legible
Other damage or indications of improper use must not be present
Housing and insulation parts, and protective covers must not be missing or damaged
Connections must not be defective
Switches must not be damaged
Other damage must not be present
Connection cables and external leads must not be damaged or defective
Insulation must not be defective (do not use insulation or adhesive tape to repair dam-
age)
Plugs and plug connections must not be damaged or deformed
Strain relief devices, bend radius protection devices, conduits and fixings must be ef-
fective
Cables/plugs must be suitable for their area of application and power
Fuse links and device fuse holders must not be defective
Lines must not be damaged or defective (do not use insulation or adhesive tape to re-
pair damage)
Coupling/plug devices must not be deformed, damaged or thermally damaged
Strain relief devices and bend radius protection devices must be effective
Cables/plugs must be suitable for their area of application and power
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