Electrical installation
4.3 Important safety precautions
Converter cabinet units
68 Operating Instructions, 07/2016, A5E03347396A
Important safety precautions
Danger to life if the general safety instructions and remaining risks are not carefully
observed
If the general safety instructions and remaining risks are not observed, accidents can occur
involving severe injuries or death.
• Observe the general safety instructions.
• When assessing the risk, take into account residual risks.
Danger to life due to electric shock when using unsuitable fuses
If unsuitable fuses are used, an electric shock can cause severe injury or death.
• Use only fuses recommended in the technical data.
• Observe the necessary minimum short circuit current for the relevant fuse.
Danger to life through electric shock due to the residual charge of the DC-link capacitors
Because of the DC-link capacitors, a hazardous voltage is still present for a period of time
after the power supply has been switched off.
Contact with live parts can result in death or serious injury.
• Open the unit only after the time specified on the warning label has elapsed.
• Before starting work, check the absence of voltage by measuring all poles/phases, also
to ground.
Material damage resulting from switching on the device without forming the DC-link
capacitors
After a storage time exceeding two years, switching on the device without forming the DC-
link capacitors can damage it.
• Before switching on the device, it should be formed after a storage time exceeding two
years, see "Maintenance and servicing".
Note
Touch protection
When the cabinet door is opened, cabinet units have touch protection according to BGV A3
and EN
50274.
These protective covers may need to be removed during installation and connection
procedures. Once work has been completed, the protective cover
s must be properly refitted.
To Next Page
Loading...
