5. Tests
5.1 Introduction
5.1.1 Correct testing sequence
The EVCC300 incorporates effectively four safety tests (1.1 to 1.4 in the list below), one test to determine if nuisance
tripping of an RCD or GFCI is likely to occur (2.1 in the list below) and two operational (charger output enabled) tests
(3.1 to 3.2 in the list below) :
Warning: It is important for safety reasons to apply these tests in the order shown below:
1. Safety checking tests:
1.1. Protective Earth (PE) touch pad test: This test can indicate a number of faults:
Charger is not earthed / grounded
Charger earth / ground has live voltage present
Charger is not able to output a charging voltage
1.2. Protective conductor resistance measurement (R
PE
)
1.3. Touch voltage measurement (inherent part of any RCD / GFCI tests)
1.4. Personal protection check
RCD / GFCI trip time measurement
This includes the DC current trip time as this is essential to ensure the AC current element of the
protection remains functioning.
2. Nuisance tripping check test:
2.1. RCD / GFCI trip current measurement
3. EV charger operation checking tests:
3.1. Proximity pilot (PP) check
3.2. Control pilot (CP) check
Simulates electric vehicle (EV) control pilot (CP) states (A, B, C, D, E and F)
Reads back the set state from charger (CP voltage, duty cycle and frequency)
Displays the current available being communicated to the car
Warning: This sequence is important because it ensures the charger is safe before performing the
operational tests in the charger.
12
Tests
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