Check the power cord
Perform the following check on all of the power cords that the customer uses to supply power to
the frame.
Note: Skip steps 2 and 3 if the power cord is wired directly to the power
source.
PDU power
- Check all power cords for damage, broken insulation, or burned pins. Ensure that the removable plug is fully inserted in the PDU.
- Verify that all of the FRU power supply units (PSUs) have a cable clip installed. The cable clip is located on the handle of each PSU and secures the power cable.
- Verify that all delta-connected PDU power cords have the following label (L036) in place
and readable:
This line cord uses an appliance coupler that is not intended to be mated, unmated, or moved while electrically active. Supply voltage to appliance coupler should be turned off (for example: by the supply side plug or branch circuit breaker) whenever the line cord is being plugged, unplugged, or is not attached to the product. (L036)
- Be sure that you are plugging the line cord to the system, but not into the wall.
- Measure the resistance from the earth pin of the disconnected power cord to frame earth of the PDU. The reading must be 0.1 ohms or less. Note that you are measuring from the ground pin on the mal mains plug of the line cord to exposed ground on the system, which may only be available in certain locations (for example, the stud on the PDU or any exposed EIA rails).
- Check the strain relief clamp to ensure that it is correctly installed and tightly fastened.