A-8 Electrical Safety Inspection
ELECTRICAL SAFETY INSPECTION
5- Earth Leakage Test
Figure 1 Earth leakage test
Failure
Check any short-circuits of the Y capacitor on power unit. Replace a new one if any portion
defective.
Check any broken of the Power Unit. Replace a new one if any portion defective.
Inspect mains wiring for bad crimps, poor connections, or damage.
Test the wall outlet; verify it is grounded and is free of other wiring abnormalities. Notify the user
or owner to correct any deviations. As a work around, check the other outlets to see if they could be
used instead.
Change another probe to confirm if the fail is caused by console.
Inspect mains wiring for bad crimps, poor connections, or damage.
If the leakage current measurement tests fail on a new unit and if situation cannot be corrected,
submit a Safety Failure Report to document the system problem. Remove unit from operation.
If all else fails, stop using and inform the Customer Service Engineer for analysis and
disposal.
LIMITS
UL60601-1： 300 μA Normal Condition
1000 μA Single Fault Condition
IEC60601-1:： 500 μA Normal Condition
1000 μA Single Fault Condition
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