Ground (Earth) Wire Leakage Current Tests - GE Solar 8000M/i Service Manual

Ground (earth) wire leakage current tests

2026265-075C
Maintenance and checkout: Electrical safety tests
Perform this test to measure current leakage through the ground (earth)
wire of the equipment during normal operation.
The device under test is to be tested at its normal operating voltage.
1. Configure the leakage tester like the circuit shown below.
Leakage Tester
HIGH
LOW
GND
10K
0.015µF
DMM
DMM set to measure AC voltage
2. Connect the power cord of the device under test to the power
receptacle on the leakage tester.
3. Set the power switch of the device under test to ON.
4. Read the current leakage indicated on DMM.
5. Set the polarity switch on the leakage tester to RVS (reverse).
6. Read the current leakage indicated on DMM.
NOTE
If either reading is greater than the appropriate specification
below, the device under test fails. Contact GE Technical Support.
300 μA (0.3 volts on the DMM), and the device under test is
powered from 100-120 V/50-60 Hz.
300 μA (0.3 volts on the DMM), and the device under test is
powered from a centered-tapped 200-240 V/50-60 Hz, single
phase circuit.
500 μA (0.5 volts on the DMM), and the device under test is
powered from a non-center-tapped, 200-240 V/50-60 Hz, single-
phase circuit.
NOTE
Center-tapped and non-center-tapped supply circuits produce
different leakage currents and the UL and EN limits are
different.
7. Set the power switch of the device under test to OFF.
Solar 8000M/i patient monitor
NORM
GND
RVS
1K
Power Cord
Device
Under
Test
500A
4-11