Figure 18Testing The Contact Current, Class - Benning ST 755+ Operating Manual

Testing
9.5 Individual tests
Figure 18: Testing the contact current, Class II (connection diagram exemplary for VDE 0701 and
VDE 0702, circuit diagram)
4 Direct current measuring method (Class II, I
The shock-proof plug of the test sample is plugged into the test socket of the device.
Use the test probe for measuring on all accessible conductive components of the test
sample.
5 Differential current measuring method (Class II, I
The shock-proof plug of the test sample is plugged into the test socket of the device.
Use the test probe for measuring on all accessible conductive components of the test
sample.
6 Alternative leakage current measuring method (Class II, I
The shock-proof plug of the test sample is plugged into the test socket of the device.
Use the test probe for measuring on all accessible conductive components of the test
sample.
Procedure
1. Start the test.
2. Use the test probe to scan all accessible conductive components of the test sample.
3. If you are using the direct or differential current measuring method, change the polarity of
the mains voltage at the test socket [} page 31].
4. Use the test probe again to scan all accessible conductive components of the test sample.
Test the test sample in all switch positions (test sample functions), if available.
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