respective rules and regulations. Information is given
below on how these inspections can be performed.
● PE conductor test
After the installation and before switching on for the
first time, test the continuity of the PE conductor. For
this,
connect the charging coupler to a test adapter for
vehicle simulation in accordance with EN 61581-1.
Measure the resistance of the PE conductor between
the PE conductor socket of the adapter and the con‐
nection point of the PE conductor in the building's
electrical cabinet. The value of the PE conductor for a
total conductor length (connecting line to the charging
system and the vehicle charging cable) of up to 5 m
must not exceed 300 mΩ. For longer cables, the value
can be increased in accordance with the applicable
national regulations. In any case, the resistance must
not exceed a value of 1 Ω.
● Insulation test
Two insulation measurements are required because
the charging system is equipped with a disconnecting
relay. The charging system must be disconnected
from the power supply for this. Therefore, before the
measurement, switch off the supply voltage using the
circuit breaker in the building's electrical cabinet.
1. Measurement of the primary side of the charging
system.
Measure the insulation resistance on the primary side
of the charging system at the connection point of the
power supply line to the charging system in the build‐
ing's electrical cabinet. The value must not exceed
1 MΩ.
Note
The
Wallbox has a surge protector. This
may be considered in the course of mak‐
ing measurements.
2. Measurement of the secondary side of the charging
system.
For this, connect the charging coupler to a test adapter
for vehicle simulation in accordance with EN 61581-1.
Measure the insulation via the measuring sockets on
the test adapter. The value must not exceed 1 MΩ.
Alternatively, the differential current method can be
used in conjunction with measurement of the PE con‐
ductor current. In both cases, the value must not ex‐
ceed 3.5 mA. For these measurements, connect the
charging coupler to a test adapter for vehicle simula‐
tion in accordance with EN 61581-1. The measure‐
ments must be carried out with the adapter in the C
mode. Measure the differential current at the connec‐
tion point of the power supply line to the charging sys‐
tem in the building's electrical cabinet.
Safety instructions
00.999.3046/ A.1.5
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