4/Service
4-11
4-11
6600 0341 000
08/15/99
Electrical safety procedures
Use approved equipment and techniques to test the unit’s ground continuity and
leakage current.
Ground continuity
Use a low range ohmmeter or electrical safety analyzer to measure the resistance
between the ground pin on the line cord plug and exposed metal surface of the unit.
The ground resistance must be less than 0.2 ohm*.
Leakage current
Follow the test equipment manufacturer’s directions to verify:
1.
Less than 300 microamperes at 100/120 VAC (less than 500 microamperes at 220/
230/240 VAC) measured with the ground intact for normal and reverse polarity at
any exposed metal surface.
2.
Less than 300 microamperes at 100/120 VAC (less than 500 microamperes at 220/
230/240 VAC) measured with the ground wire open for normal and reverse polarity
at any exposed metal surface.
* If measured from the ground pin of the power inlet module on the unit, it must be less than 0.1 ohm.
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