
MI 3155
Eurotest
XD
Test and measurements
105
Connection diagrams
Figure 7.11: Connection of 3-wire test lead and Tip commander
Measurement procedure
Enter the
R iso - all
function.
Set test parameters / limits.
Disconnect tested installation from mains supply and discharge installation as required.
Connect test cable to the instrument.
Connect test leads to object under test (see
The standard 3-wire test lead, Schuko test cable or Plug / Tip commanders can be used.
Start the measurement.
Wait until object under test is fully discharged.
Save results (optional).
Figure 7.12: Examples of R iso - all measurement result
Measurement results / sub-results
Riso
L-N
Insulation resistance between L and N terminals
L-PE
Insulation resistance between L and PE terminals
N-PE
Insulation resistance between N and PE terminals
Um
L-N
Actual test voltage between L and N terminals
L-PE
Actual test voltage between L and PE terminals
N-PE
Actual test voltage between N and PE terminals