Permitted voltage systems
Information regarding voltage supply systems | Information regarding permissibility |
|---|---|
TN and TT systems – voltage systems with directly grounded star point. | Use is possible without restrictions. |
IT systems – voltage systems with non-grounded star point. | Use is only permitted adhering to specific measures. The measures are described in chapter Use in IT systems. |
Voltage systems with grounded outer conductor. | Use only for nominal line voltages up to max. 240 V. |
Additional information
