GE MAC 5500

Revision E MAC 5500 resting ECG analysis system 5-29
2020299-020
Maintenance: Functional Checkout Procedures
Electrical Safety Checks
20. Current leakage and ground continuity test results meet requirements?
Perform electrical safety checks when indicated. All indicated elec
trical safety
checks require a pass/fail indication for steps performed. Record the
measurement values in your debrief.
Table 6. Electrical Safety Checks
Step
1
Condition
2
UUT - ON
Result
Leakage
Current Limits
Earth Leakage Current
1. Forward Polarity NC
______

Pass/Fail
300

2. Neutral open, Forward Polarity SFC
______

Pass/Fail
1,000

3. Neutral open, Reverse Polarity SFC
______

Pass/Fail
1,000

4. Reverse Polarity NC
______

Pass/Fail
300

Enclosure Leakage Current
1. Forward Polarity NC
______

Pass/Fail
100

2. Neutral open, Forward Polarity SFC
______

Pass/Fail
300

3. Ground open, Forward Polarity SFC
______

Pass/Fail
300

4. Ground open, Reverse Polarity SFC
______

Pass/Fail
300

5. Neutral open, Reverse Polarity SFC
______

Pass/Fail
300

6. Reverse Polarity NC
______

Pass/Fail
100

Patient Leakage Current to Ground
1. Forward Polarity NC
______

Pass/Fail
10

2. Neutral open, Forward Polarity SFC
______

Pass/Fail
50

3. Ground open, Forward Polarity SFC
______

Pass/Fail
50

4. Ground open, Reverse Polarity SFC
______

Pass/Fail
50

5. Neutral open, Reverse Polarity SFC
______

Pass/Fail
50

6. Reverse Polarity NC
______

Pass/Fail
10

Patient Leakage Current Mains on Applied Part
3
1.
Forward Polarity
Neutral / Ground Closed
SFC
______

Pass/Fail
5000

2.
Reverse Polarity
Neutral / Ground Closed
SFC
______

Pass/Fail
5000
