Testing Of Prcds; Figure 27Testing Of Prcds (Connection Diagram) - Benning ST 755+ Operating Manual

Testing
9.5 Individual tests
2 Contact current of the welding circuit (Class II, I
Procedure
1. Start the test.
2. Use the test probe for measuring on the poles of the secondary side.
3. Change the polarity of the mains voltage at the test socket.
4. Use the test probe again for measuring on the poles of the secondary side.
5. Check the measured value for compliance with the technical data of the test sample.
9.5.12

Testing of PRCDs

The testing of residual current protection devices [} page 47] is intended to check the
functionality of portable residual current protection devices (PRCD).
Menu
"Main menu > VDE 0701, VDE 0702 > Devices with PE (Class I)"
Requirements
• Approved safety measuring lines
• Please observe the requirements for measuring [} page 71].
• The test sample is disconnected from the mains.
• Make sure that you are familiar with the procedure for manual [} page 77] and automatic
[} page 76] testing.
• Make sure that you know the necessary measuring points.
• The test sample is connected according to the connection diagram.
• Please observe the operating manual and the technical data of the test sample.
Figure 27: Testing of PRCDs (connection diagram)
Procedure
1. Start the test.
2. Check the measured value for compliance with the technical data of the test sample.
5284 / 08/2023 en
The shock-proof plug of the test sample is plugged into the test socket of the device.
Use the test probe for measuring on both poles of the secondary side of the test
sample.
1
1 Direct current measuring method (Class I, PRCD)
Connection between test socket, test sample and IEC socket of the device.
BENNING ST 755+ / ST 760+
)
Cont
95