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GT-650/GT-900 User's Manual
28
Substitute Leakage Current Test (I
SUB
)
The substitute leakage current test measures the leakage current between L/N
terminals of test socket and PE terminal of test socket in parallel with PROBE 2 (at
PC I and PC II). L/N terminals are shorted by the GT-650/GT-900 tester for this test.
This measurement is an alternative measuring method for the Earth leakage current
measurement and Touch leakage current measurement.
It is essential to refer to the local appliance test standards and/or guidance material
for the safe applicability of this test.
Test procedure and instructions:
Connect the appliance and the test lead according to the figure 17 or 18,
depending on appliance protection class (PC).
For PC I appliances no probe is required except if there are some conductive
parts on the appliance not connected to PE terminal. In this case use probe 2 in
addition.
For PC II appliances apply the test probe to any exposed conductive part on the
appliance. Do the test for all exposed conductive parts on the appliance. Use
then probe 2.
Figure 17: Substitute leakage current test connections at appliance PC I
Figure 18: Substitute leakage current test connections at appliance PC II.
Use probe 2.
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