22
Dangers from 
mains current 
and charging cur-
rent
Protecting your-
self and others
Safety measures 
in normal opera-
tion
In this case, the plant operator or the person using the device should check 
whether the device may be connected, where appropriate by discussing the 
matter with the power supply company.
NOTE! Ensure that the mains connection is earthed properly
Anyone working with chargers exposes themselves to numerous dangers e.g.:
- risk of electrocution from mains current and charging current
- hazardous electromagnetic fields, which can risk the lives of those using 
cardiac pacemakers
An electric shock can be fatal. Every electric shock is potentially life threaten-
ing. To avoid electric shocks while using the charger:
- do not touch any live parts inside or on the outside of the charger.
- do not short-circuit the charger lead
All cables and leads must be secured, undamaged, insulated and adequately 
dimensioned. Loose connections, scorched, damaged or inadequately dimen-
sioned cables and leads must be immediately repaired by authorised person-
nel.
While the charger is in operation, keep all persons, especially children, out of 
the working area. If, however, there are people in the vicinity,
- warn them of all the dangers,
- provide suitable protective equipment.
Before leaving the work area, ensure that people or property cannot come to 
any harm in your absence.
- Chargers with a ground conductor must only be operated on a mains supply 
with a ground conductor and a socket with a ground conductor contact. If the 
charger is operated on a mains supply without a ground conductor or in a 
socket without a ground conductor contact, this will be deemed gross negli-
gence. The manufacturer shall not be held liable for any damage arising 
from such usage.
- Only operate the charger in accordance with the degree of protection shown 
on the rating plate.
- Never operate the charger if there is any evidence of damage.
- Arrange for the mains cable to be checked regularly by a qualified electrician 
to ensure the ground conductor is functioning properly.
- Any safety devices and parts that are not functioning properly or are in im-
perfect condition must be repaired by a qualified technician before switching 
on the charger.
- Never bypass or disable protection devices.
- After installation, an accessible mains plug is required.