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
__ 1. Check all power cords for damage, broken insulation, or burned pins. Ensure that the removable
plug is fully inserted in the PDU.
__ 2. 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.
__ 3. 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)
__ 4. 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.
__ 5. Check the strain relief clamp to ensure that it is correctly installed and tightly fastened.
BPA power
__ 1. Check all power cords for damage, broken insulation, or burned pins. Ensure that the removable
plug is fully inserted in the BPA.
__ 2. 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.
__ 3. Measure the resistance from the earth pin of the disconnected power cord to frame earth of the
BPA. The reading must be 0.1 ohms or less.
__ 4. Check the strain relief clamp to ensure that it is correctly installed and tightly fastened.
ENG-10 IBM: 3931 Safety Inspection