Patient Leakage - Applied Part To Earth
28
EUT Power Break
5. rEV
4. rEV
Reversed
None
6. rE
*
Reversed
Earth Open
Note: Tests marked * are not performed for Class II equipment.
If the unlimited test duration is selected the user must press the Start key to stop the test. To initiate the next
test in the sequence the Start key must be pressed again. In this mode the Analyser can be used to test
equipment with slow start-up speeds.
For type B and BF equipment, the patient leakage current is measured with all parts of the applied part
connected together, shown dotted above. For type CF equipment the patient leakage current is measured from
each part of the applied lead separately. IEC601-1 amendment 2 specifies separate maximum allowed values
for AC and DC current - both of which are measured by the Safety Analyser.
Patient Leakage, normal condition
This test measures the patient leakage current under normal conditions. The current is measured through the
Measuring Device with S1 and S8 closed, S5 normal and then S5 reversed. The maximum allowed values are
as follows:
Type B
Type BF
Type CF
Class I DC
0.01 mA
0.01 mA
0.01 mA
AC
0.1 mA
0.1 mA
0.01 mA
Class II DC
0.01 mA
0.01 mA
0.01 mA
AC
0.1 mA
0.1 mA
0.01 mA
Patient Leakage, single fault, supply open
This test measures the enclosure leakage current with a single fault condition (supply open).
