Operation Manual

OmegaGTPlus / BetaGTPlus Measurements
56
5.3 Substitute leakage current
Leakage currents between live conductors and isolated accessible metal parts (housing,
screws, handles etc.) are checked with this test. Capacitive leakage paths are included
in the result too. The current flowing at test voltage of 40 Vac is measured and scaled to
the value at nominal mains supply voltage of 230 Vac.
Test parameters for substitute leakage current measurement
OUTPUT Test voltage [40 V]
LIMIT
(Substitute)
Maximum current [0.25 mA, 0.50 mA, 0.75 mA, 1.00 mA, 1.50 mA,
2.50 mA, 3.50 mA, 4.00 mA, 4.50 mA, 5.00 mA, 5.50 mA, 6.00 mA,
7.00 mA, 8.00 mA, 9.00 mA, none]
LIMIT
(Substitute S.)
Maximum current [0.25 mA, 0.50 mA, 0.75 mA, 1.00 mA, 1.50 mA,
2.50 mA, 3.50 mA, none]
TIME Measuring time [5 s, 10 s, 30 s, 60 s, 120 s, 180 s]
Notes:
Ì Consider any displayed warning before starting measurement!
Ì Substitute leakage current may differ substantially from that of conventional
leakage current test because of the way the test is performed. For example, the
difference in both leakage measurements will be affected by the presence of
neutral to earth noise suppression capacitors.
5.3.1 Substitute leakage current on class I appliances
The instrument measures the substitute leakage current between:
Ì Main test socket (L+N) and PE test terminals,
Ì LN and PE test sockets.
Sub leakage menu