80
Contact current The following points must be observed during the contact current measurement:
- Do not perform the measurement until the ground conductor current measurement
has been carried out successfully
- The device must be in charge mode
The measurement is taken between an earthed point and the touchable, conductive com-
ponents that are not connected to the ground conductor.
If the device is equipped with a non-polarised mains plug (earthed plug), perform the test
in both positions.
The contact current must not exceed 0.5 mA.
1 Measuring device
2 Battery charging system
6.2 Touchable, conductive component not connected
to the ground conductor
8 Isolated setup of test piece
9 Measuring line
Example: Measuring the contact current
Example: Taking the measurement on the underside
of the device
PE
mA
L1
1
2
9
N
PE L1 N
9
8
6.2
R
i
1-2kΩ
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