9.1.4 Performing voltage tests
When voltage tests are carried out on electrical installa
tions equipped with AC/DC sensitive residual current devic
es (FI/RCDs) of type B/B+, these could sustain damage due
to incorrectly performed tests.
T
ATTENTION
Material damage of protective element due to incor-
rectly performed test
Incorrectly performed tests can damage protective
elements.
f In the case of voltage tests with test voltages > 0.5 kV,
switch off the residual current devices (FI/RCDs) and
the upstream and/or downstream circuit breakers.
Fig.: 24. Voltage test
f During voltage testing, also pay attention to the circuit
diagram shown.
54
9.1.5 Removing the floor panel
The floor panel of the device can be opened for mainte
nance and repair purposes.
When doing so, the device must not be connected to the
power supply.
f Take the device out of service.
¨
Section 8
Fig.: 25. Removing the floor panel
f Place the device on the top side.
f Remove the circumferential screws (1) of the floor panel
(2) with a suitable tool.
f Remove the floor panel.
2
1