Philips 862478 - Manual (Page 91)

Patient Safety Tests
Testing the Monitor 4-41
Electrical
Leakage
The following tests verify the electrical leakage of the monitor:
• Earth Leakage Current
• Enclosure Leakage Current
• Patient Leakage Current
• Patient Source Current, with Mains Voltage on the Applied Part
Warning Warning
Perform all leakage tests any time the unit is opened.
Earth Leakage
Current
This test is in compliance with IEC 60601-1 (Earth Leakage Current). In locations where
mains voltage is 100-120 volts, the applied voltage is 132 volts. In locations where mains
voltage is 220-240 volts, the applied voltage is 264 volts. The applied AC frequency should
be the same as the local mains (50 or 60 Hz).
All measurements shall be made with the power switch in both On and Off positions.
1. Connect the monitor AC plug to the electrical safety analyzer as recommended by the
analyzer operating instructions.
2. Perform test as recommended by analyzer operating instructions.
Earth leakage current is measured under various conditions of the AC mains and protective
earth conductor. For each condition, the measured leakage current must not exceed that
indicated below.
Table 4-4. Earth Leakage Current Values
What to record on the service record:
S(2): P or S(2): F
Test Condition Polarity Allowable Leakage Current
Normal Normal 300 µA
Reversed 300 µA
S.F.C a
Open Supply
a. S.F.C = Single Fault Condition
Normal 1000 µA
Reversed 1000 µA