GE MAC 600 SPY, Service Manual

Page: 79 / 127

Revision G MAC
TM
600 4-29
2047426-002
Maintenance: Check out Procedure
Verify the current leakage test results meet the requirements. Perform
electrical safety checks when indicated. All indicated electrical safety
checks require a pass/ fail indication for the steps performed. Record the
measurement values in your debrief.
1. Verify the equipment does not propose any health hazard. See “Earth
Leakage (AC line) Current Test” on page 4-25 and “Patient Leakage
Current Tests” on page 4-26, for more information.
2. Verify all exposed metal is properly grounded. See “Ground
Resistance Test” on page 4-24 for more information.
NC = Normal Condition; SFC = Single Fault Condition; N/A = Not
Applicable
UUT = Unit Under Test
Table 5. Electrical Safety Checks
Step Condition UUT - ON Result Leakage Current Limits
Earth Leakage Current
1 Forward Polarity NC _______uA Pass/Fail 150 uA
2 Neutral Open, Forward Polarity SFC _______uA Pass/Fail 1000 uA
3 Neutral Open, Reverse Polarity SFC _______uA Pass/Fail 1000 uA
4 Reverse Polarity NC _______uA Pass/Fail 150 uA
Patient Leakage Current To Ground
1 Forward Polarity NC
_______uA
Pass/Fail 10 uA
2 Neutral Open, Forward Polarity SFC
_______uA
Pass/Fail 50 uA
3 Ground Open, Forward Polarity SFC
_______uA
Pass/Fail 50 uA
4 Ground Open, Reverse Polarity SFC
_______uA
Pass/Fail 50 uA
5 Neutral Open, Reverse Polarity SFC
_______uA
Pass/Fail 50 uA
6 Reverse Polarity NC
_______uA
Pass/Fail 10 uA
Ground Resistance
1
AC mains power cord ground prong
to exposed metal surface (ground lug)
N/A
_______
Q
Pass/Fail
Less than 1 Ohm