Electric Shock Due To Lack Of Earthing; Danger To Life And Damage To Property Due To Loose Power Connections; Residual Charge In Capacitors; Dangers From Electric Fields - Siemens SICHARGE UC 150 Operating Instructions Manual

2.5.4

Electric shock due to lack of earthing

If the protective conductor connection is missing or incorrectly connected, high voltages may
be present on exposed parts. Touching the parts can lead to severe injuries or death. To earth
the charging station, connect the protective conductor in conformance with regulations.
2.5.5

Danger to life and damage to property due to loose power connections

Insufficient tightening torques and vibrations result in loose power connections. Loose power
connections can result in high voltages on exposed parts. Touching the parts can lead to
severe injuries or death. Loose power connections can also cause fire damage, device defects
or malfunctions.
• Tighten all power connections to the prescribed tightening torque.
• Check all power connections regularly, in particular after transport.
2.5.6

Residual charge in capacitors

Discharging of the DC capacitors starts after the power supply of the charging station has
been switched off. The DC capacitors may not be fully discharged after switching off the
power supply. DC live parts remain under dangerous electrical voltage for up to 10 minutes
during discharging. AC live parts may remain under dangerous electrical voltage until they
are manually discharged. Touching the live parts can lead to death or serious injury.
• Wait 10 minutes after switching off the power supply.
• Heed warnings about charged capacitors
• Make sure that the charging station and its parts are de-energized.
• Only then should you start work on the charging station.
2.6

Dangers from electric fields

2.6.1

Pacemakers/implants

When the door is open, the switched-on charging station emits electromagnetic fields (EMF)
to the outside. Electromagnetic fields are particularly dangerous for people with pacemakers
or other implants in the immediate vicinity of a system.
• Therefore, switch off the power supply before opening the door of the charging station.
• If you open the door forcibly, the charging station automatically switches off the power
supply to the AC‑DC converters.
SICHARGE UC 150
Operating Instructions, 02/2023, A5E50068475-AB
Safety instructions
2.6 Dangers from electric fields
19