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EN-US
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 danger 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.
Mains Power Sup-
ply and Connec-
tion Cables
- 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.
IMPORTANT!
To determine the cross-section and current carrying capacity of mains cables, ob-
serve standard IEC 60364-5-52.
As the current carrying capacity can vary due to the cable layout and its insulation and dif-
fering ambient temperatures, when the mains leads are replaced the requirements of stan-
dard IEC 60364-5-52 must be met. Individual national requirements and standards must
also be observed.
Housing and Cov-
ers
- Housing, insulation items and protective covers must not be missing or damaged.
- Unauthorized modifications must not be present, e.g.: Fittings and modifications not
authorized by the manufacturer.
- Ventilation openings must not be soiled or blocked, air filters must be present.
- There must be no sign of soiling, corrosion or degradation that would compromise
safety.
- Indications of overload and improper use must not be present.
- Conductive objects must not be inside the housing.
Adjustment and
display devices
- Control elements and indicators must not be faulty
Rating Plate and
Warning Stickers
- Safety-related labels must be present, e.g.: Warning notices, grounding symbols, and
rating plates. If necessary, renew, add to or correct the labels in a suitable form.
- Ensure that all safety-related labels or symbols, rated values and position indicators
are legible.
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