Figure 4-5 Safety Ground Reference Check - HP Integrity rx7620 Installation Manual

Cable Connections
AC Voltage Check
Safety Ground Verification
This measures the voltage level between B0 and A0. The measurement is taken between ground
pins of the two power cords. Refer to Figure 4-5 for ground reference points when performing this
measurement.

Figure 4-5 Safety Ground Reference Check

Step 1. Measure the voltage between B0 and A0. Take the AC voltage down to the lowest scale on the volt
meter.
Step 2. Insert one probe into the ground pin for B0.
Step 3. Insert the other probe into the ground pin for A0.
Step 4. Verify that the measurement is between 0–5V AC. If the measurement is 5V or greater, escalate the
situation. Do not attempt to plug the power cords into the HP Integrity rx7620 Server.
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Chapter 4