How to test a charging station
PE Pre-Test
Do not touch PE terminals at the mains
socket on the back side before PE pretest is
successfully carried out.
The PE Pre-Test is a safety feature of the
EVA-500-D/-CH/-UK/-F Test Adapter. It allows the
operator to test the PE conductor for possible
presence of dangerous voltage against earth.
In normal circumstances, the PE conductor is
connected to earth and therefore has no voltage
against earth. However, if the PE conductor is not
connected to earth (e.g., connected to phase by
mistake or PE is interrupted) the situation may be
hazardous.
Test procedure: After the test adapter is
connected to the charging station, touch the
probe (see Figure 2 #3) with a bare finger (see
Figure 9). If light indicator is illuminated (see
Figure 2 #2), then dangerous voltage is present
at PE conductor. Stop further testing immediately
and check for a possible wiring fault of the tested
PE conductor.
�
In case of this error, PE terminal carries
hazardous voltage. There is a high risk of
electric shock to the operator and other
persons nearby!
Possible errors are:
•
PE interrupted / not connected
•
PE carries voltage (e.g., connected to
phase)
Do not wear gloves while performing this
test and ensure a proper connection to
earth. Do not touch any metal parts while
performing this test.
In case of improper connection to earth (e.g., isolated placement of your body) this indication may be not
reliable.
Proximity Pilot (PP) State (Cable Simulation)
With the PP State rotary switch (see Figure 2 #1) various current capabilities of the charging cable can be simulated
when the test adapter is connected to the charging station. Current capabilities are simulated with different
resistances connected between PP and PE conductors. Correlation between resistance and current capability of the
charging cable is shown in Table 1 below.
Marking of cable current capability
No cable
13 A
20 A
32 A
63 A
Table 1: Correlation between resistance and current capability of the charging cable.
EVA-500-X
EVA-500-D/-CH/-UK/-F
Figure 9: PE pretest
Resistance between PP and PE
Open (
1.5 kΩ
680 Ω
220 Ω
100 Ω
8
EVC-20
Charging
Station
Type 2
(with panel mount
socket outlet)
as example
∞
)