Appendix A Purpose of Tests
47
IEC Lead Test
This test confirms the electrical safety of 230V IEC leads.
The IEC test performs a continuity and polarity check on the Live
and Neutral conductors and confirming that there are no breaks or
cross wiring in these conductors.
Powered Tests
Warning
During these tests full mains voltage is applied to appliance.
Operators must make sure that no hazard will arise from the
equipment under test being energized. For instance, it is
important that the user verifies that an appliance with moving
parts (e.g. an electric drill) is safely mounted to allow
movement without causing damage to equipment or personnel.
The following powered tests differ from the previous tests in that
they apply mains supply voltage to the appliance to perform their
functions: -
Leakage Test
Power Test
The Tester performs an initial low voltage test to establish that the
appliance can be safely powered.
If the potential load current is too high, a warning message appears,
allowing the user to continue. If a Live to Neutral short exists, this
message will appear, and if tests are continued the fuses will blow.
If the potential load current is low, a warning message appears to
allow the user to check that the appliance is switched on, and all
fuses are intact. The Tester also performs a safety test to verify that
internal relays are properly set before applying full mains supply to
the appliance.
Power to the appliance will remain until the Red Button is pressed.
This allows the user to switch between the three powered tests
without removing power from the appliance.
