5.2 Tests, PE (protective earth) touch pad test
5.2.1 Description
This is the first test that should be performed when using the EVCC300 to test a mode 2 or 3 vehicle charger.
During this test the charger is quickly powered up. If there is a ground / earth connection present the instrument will
indicate PROCEED. Should there be no ground / earth connection to the charger, or a voltage present on the ground
/ earth the test will indicate FAULT. This test is done by using a touch pad, in conjunction with a series of voltage
measurements.
Fig 1:
Pass screen
Fail screen
NOTE:
This test is disabled when the mains supply is set to 240 V 2 Ph US. This is because this test will not work on
2 phase 180° supply.
WARNING: The PE contact / touch-pad test is not a bonding test and must not be relied on to check
protective earth integrity. It is an ‘open-circuit’ detect test and will not indicate a high impedance earth
connection.
5.2.2 To perform the test
1. Switch the instrument ON.
2. Ensure the mains supply to the charger is powered up and on.
3. Plug the EVCC300 into the charger outlet, either directly into
a type 2 connector or using the adaptor provided into a type
1 connector.
13
Tests
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