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SuperNova Leakage Current Tests

PostPosted: Wed Aug 28, 2013 10:44 am
by southseas
I was told a few weeks ago that the leakage current tests run by SuperNova's were done "differently" according to whether a Class 1 or Class 2 was selected.

I was told that for the Class 1 leakage test, the leakage current flowing in the earth conductor was measured. While for the Class 2 Leakage Current Test, the differential current between phase and neutral was measured- the acceptable values are different for each class of course. Is this the case?

Re: SuperNova Leakage Current Tests

PostPosted: Wed Aug 28, 2013 1:41 pm
by Grizzly
They are different, but the descriptions are a bit off-base.

The Class I Leakage test (now more correctly called the Protective Conductor Current test) uses the differential method.
The Class II version of the test is known as the Touch Current test, and the Supernova manual describes it thus:

The Touch Test displays the current that would flow if the appliance
was touched by a person. This is based on a ‘body model’ of 2kΩ.

The Tester detects any current flowing in the Earth Bond Lead
(attached to an appropriate point on the appliance) and indicates the
potential leakage through a metal panel. The Tester displays the
result in milliamps (mA).