1662/1663/1664 FC
Users Manual
52
RCD Tests in IT Systems
RCD tests at locations with IT systems requires a special test procedure
because the Protective Earth connection is grounded locally and is not tied
directly to the power system.
The test is done at the electrical panel with probes. See Figure 8 for the
connections used in this test.
RCD
Mains Supply
PE (L2/Green)
L (L1/Red)
hwl023.eps
Figure 8. Connection for RCD Test on IT Electrical Systems
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