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5. Measuring method
5.1 Class I Test
The purpose of the test carried out for Class I appliances is to check the
resistance of earth continuity from exposed metal parts and the plug is below a
certain level and the insulation resistance between live and neutral connected
together and earth is 1MΩ or more.
The Tester provides two different measurement methods to measure leakage
current flowing on the earth terminal or exposed metal parts of Class I appliance.
One is
“RUN leakage current” test with the Tester connected to an outlet, and
another is “SUBSTITUTE leakage current (SUB leak current)” test without
connecting the Tester to an outlet.
To perform Class I test, connect the mains plug of the appliance to the test socket
(1) described in clause 2.4.3. Connector and the PE probe to terminal (3). To
perform RUN leak test, connect Mains lead EZYMAIN to Main cord terminal (2).
Use the following setups, depending upon the type of appliance.
While the Tester is supplied power via Mains lead EZYMAIN, RUN leak test is
automatically performed. If the EZYMAIN cord is not connected and used, the
Tester performs SUB leak test.
