Nellcor OxiMax N 5500, Руководство по обслуживанию, Страница: 31 / 101

Performance Verification
24 N5500 Service Manual
Performance
Verifi
cation, N5500
Table 3. Earth Leakage Current Values
Test Condition
Allowable Leakage Current (microamps)
Normal polarity 500
Normal polarity; Neutral open 1000
Reverse polarity 500
Reverse polarity; Neutral open 1000
Note: 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 in Table 3.
3.4.2.2 Enclosure Leakage Current
This test is in compliance with IEC60601-1 enclosure leakage current. This test is for
ungrounded enclosure current, measured between enclosure parts and earth. The applied
voltage for IEC60601-1 the applied voltage is 264 Volts AC at 50 to 60 Hz.
1. Connect the monitor AC plug to the electrical safety analyzer as recommended by the
analyzer operating instructions.
2. Place a 200 cm
2
foil in contact with the instrument case making sure the foil is not in
contact with any metal parts of the enclosure that may be grounded.
3. Measure the leakage current between the foil and earth.
Note: The analyzer leakage current indication must note exceed the values listed in
Table 4.
Table 4. Enclosure Leakage Current
AC Line Cord
Neutral Line
Wire
Power Line
Ground Wire
Allowable Leakage
Current (microamps)
Closed Closed Closed 100
Closed Closed Open 500
Closed Open Closed 500
Open Closed Closed 500
Open Open Closed 500
Open Closed Open 500
3.4.2.3 Patient Leakage Current
This test measures patient leakage current in accordance with IEC60601-1, clause 19,
for Class I, Type CF equipment. Patient leakage current in this test is measured from any
individual patient connection to earth (power ground).
1. Configure the electrical safety analyzer as recommended by the analyzer operating
instructions.
2. Connect the monitor’s AC mains power cord to the analyzer as recommended by the
analyzer operating instructions.