Benning ST 755+ - Figure 18 Testing the Contact Current, Class

Testing
9.5 Individual tests
5284 / 08/2023 en BENNING ST 755+ / ST 760+ 85
4 5
6
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
Cont
)
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
Cont
)
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
Cont
)
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.