Leakage Current Test - Brainlab EXACTRAC INFRARED MONITORING Clinical User Manual

8.3.5

Leakage Current Test

What is a Leakage A leakage current test is used to verify that components in the patient vicinity that are not connected
Current Test? to the protective earth are properly isolated. In the case of the ExacTrac system, this test is partic-
ularly important for non-conductive components such as the plastic housing that protects devices.
• When a measurement device is connected to such components, the induced current must not
• The selected measurement device must meet the criteria defined by IEC 60601-1.
Before You Begin All data and power cables must be reconnected, and the system must be switched on and fully op-
erational.
Measurement Both DC and AC measurements must be taken for every component. To do so, use a calibrated mul-
Values timeter and a suitable measuring device as described in IEC 60601-1, Chapter 19.4e "Measuring
device":
Measurement
Device Record
Connecting the
Measurement
Device
NOTE: For detailed information on completing leakage current tests, consult the instruction man-
ual provided with the measurement device, or refer to the relevant sections in the IEC 60601-1 stan-
dard.
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exceed the specified limits.
Mode Limit Values (Patient Vicinity)
μ
AC 100 A
μ
DC 10 A
Type and ID of Measurement
Device
Steps
1. • Connect the cables from the measurement device to the measurement points using
conductive foil such as self-adhesive copper foil or standard tin foil.
• Minimum foil size: 20 x 10 cm (8 x 4").
2. Attach the foil to the measurement surface, or wrap the foil around the component to be
tested.
3. Note the highest reading for your records.
Limit Values (Cabinet Housing)
μ
100 A
μ
100 A
Calibration Valid Until:
Clinical User Guide Rev. 1.1, ExacTrac Infrared Monitoring Ver. 1.0