Part III Appendix
Electrical Safety Maintenance 270
Electrical safety check
8-Patient auxiliary current test
Test the current output on the wall. Check that the ground is good and no cable exceptions occur.
Notify the user or owner to correct related deviations. Check whether any surrounding operating
power output can be used for substitution.
Replace the probe to check whether the failure is caused by the main console.
If the leakage current test on the new unit fails and the problem cannot be rectified, submit a
safety failure report to prove the system problem and stop using the device.
If the test fails on other units, stop using the device and notify customer service engineers to
analyze or handle the problem.
Applicable to the ECG input and probe of the BF type device:
100 μA (normal condition)
500 μA (single fault)
Electrical safety checklist
Class I Equipment
Overview:
□ Periodic check Test items: 1, 2, and 3
□ Maintenance without disassembly Test items: 1, 2, and 3
□ Maintenance with disassembly but not modifying the
power part (including the transformer or patient circuit
board)
Test items: 1,2, 3, 4, and 5
□ Maintenance with disassembly and modifying the power
part (including the transformer or patient circuit board)
Test items: 1, 2, 3, 4, 5, 6, 7, and 8
Position Engineer
Device Code
Manufacturer Model SN
Measurement Device/SN Calibration Date
Check and Test Pass/Fail/NA Remarks
1. Power plug
2 Equipment shell and accessories
3 Equipment labels
4
Protection ground
impedance
Ω Limit: 0.2 ohm
5 Normal condition (NC)
____μA Limit
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