Table 3-4: Earth Leakage Current Values - Mallinckrodt NELLCOR NPB-4000 Service Manual

Section 3: Performance Verification
3.4.2.1 Earth Leakage Current
3.4.2.2 Enclosure Leakage Current
3-18
This test is in compliance with IEC 601-1 (earth Leakage current) and AAMI
Standard ES1 (earth risk current). The applied voltage for AAMI ES1 is 120
Volts AC, 60 Hz, for IEC 601-1 the voltage is 264 Volts AC, 50 to 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.
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 3-4.

Table 3-4: Earth Leakage Current Values

Test Condition
Normal polarity
Normal polarity; Neutral (L2) open
Reverse polarity
Reverse polarity; Neutral (L2) open
This test is in compliance with IEC 601-1 (enclosure leakage current) and AAMI
Standard ES1 (enclosure risk current). This test is for ungrounded enclosure
current, measured between enclosure parts and earth. The applied voltage for
AAMI/ANSI is 120 Volts AC at 60 HZ, and for IEC 601-1 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
2. Place a 200 cm 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 3-5.
Allowable Leakage
Current (microamps)
300
1,000
300
1,000