Fronius Primo 3.0-1, Service Manual, Page: 145 / 160

145
EN
Visual inspections
General The following must be visually inspected without any further dismantling of the device. Ob-
vious defects in any safety-related device components are unacceptable. Defects that
could pose a risk during the visual inspection must also be recorded.
Any defects that could cause other hazards must be repaired immediately or restrictions
placed on the further use of the system until repairs have been effected.
Mains supply and
connecting lines - Connecting lines and other cables must not be damaged or defective
- Insulation must not be damaged (do not use insulating or adhesive tapes to repair
damage)
- Connectors and plug connections must not be damaged or deformed
- Strain-relief devices, bending-protection devices, line routings or mountings must all
be effective
- Lines/plugs must be suitable for the application and the power level
- Fuse cartridges and device fuse holders must not be faulty
Housing and cov-
ers - All housing components, insulation components and protective covers must be pres-
ent and undamaged
- No unauthorised modifications must have been made (e.g. installations, conversions
that have not been approved by the manufacturer)
- Cooling openings must not be dirty or blocked and an air filter must be present
- Any dirt, corrosion or degradation that impairs safety must not be visible
- There must be no signs of overloading or improper use
- There must not be any conductive objects in the housing
Adjustment and
display devices - Control elements and indicators must not be faulty
Rating plate and
warning stickers - Safety-related labels (e.g. warning notices, earthing symbols, rating plates, etc.) must
be present. Replace, update or correct the labels as required
- The legibility of all safety-related labels or symbols, measurement data and positioning
indicators must be ensured
IMPORTANT! IEC 60364-5-52 serves as the basis for determining the cross-section and
current capacity of mains cables. As the way the cables are laid and insulated, the ambient
temperature and the current capacity can vary, the requirements set out in IEC 60364-5-
52 are to be observed when changing mains leads. Also refer to the applicable require-
ments and standards in your country.