Testing Touch Current - GE CARESCAPE B850 Service Manual

5. Read and record the current leakage indicated on the safety tester.
6. Configure the safety analyzer as follows (SFC):


7. Read and record the current leakage indicated on the safety tester.
8. Configure the safety analyzer as follows (NC):


9. Read and record the current leakage indicated on the safety tester.
10. Power off the device under test.
Acceptance criteria in Normal Condition (NC):
All readings shall be less than or equal to 300 A for installations that require compliance
•
to UL 60601-1 requirements.
All readings shall be less than or equal to 500 A for installations that require compliance
•
to EN 60601-1 / IEC 60601-1 requirements.
Acceptance criteria in Single Fault Condition (SFC) – one of the supply conductors open at a
time:
• All readings shall be less than or equal to 1 mA.

8.2.6 Testing touch current

This test measures current leakage through the exposed conductive parts on the device under
test.
Perform the test in Normal Condition (NC) and in two different Single Fault Conditions (SFC):
1) earth open and 2) one of the supply conductors open at a time. Perform the test with normal
and reverse polarity.
NOTE: Refer to the instructions delivered with the safety analyzer to perform this test.
Polarity: REVERSED
Neutral: OPEN
Polarity: REVERSED
Neutral: CLOSED
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