Patient Safety Tests

Electrical

The following tests verify the electrical leakage of the monitor:

Leakage

Earth Leakage Current

 

 

Enclosure Leakage Current

 

Patient Leakage Current

 

• Patient Source Current, with Mains Voltage on the Applied Part

 

 

 

 

 

Warning

 

 

 

 

Perform all leakage tests any time the unit is opened.

Earth Leakage

 

This test is in compliance with IEC 60601-1 (Earth Leakage Current). In locations where

Current

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

Test Condition

Polarity

Allowable Leakage Current

 

 

 

Normal

Normal

300 µA

 

 

 

 

Reversed

300 µA

 

 

 

S.F.Ca

Normal

1000 µA

Open Supply

Reversed

1000 µA

 

 

 

a. S.F.C = Single Fault Condition

What to record on the service record:

S(2): P or S(2): F

Testing the Monitor 4-41

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Philips 862474, 862478 manual Earth Leakage Current Values, Test Condition Polarity Allowable Leakage Current

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