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Removing a DC Power Cable

To remove a power cable from a DC power supply:

  1. Attach an electrostatic discharge (ESD) grounding strap to your bare wrist and connect the strap to an approved site ESD grounding point. For more information about ESD, see Preventing Electrostatic Discharge Damage.
  2. Switch off the external circuit breakers for all the cables attached to the power supply. Make sure that the voltage across the DC power source cable leads is 0 V and that there is no chance that the cables might become active during the removal process.
  3. Remove the power cable from the DC power source.
  4. Attach an electrostatic discharge (ESD) grounding strap to your bare wrist and connect the strap to one of the ESD points on the chassis. For more information about ESD, see Preventing Electrostatic Discharge Damage.
  5. Switch the circuit breaker on the power supply faceplate to the OFF position O.
  6. Remove the clear plastic cover protecting the terminal studs on the faceplate.
  7. Remove the nut and washer from the terminal studs. (Use a 3/8–in. nut driver or pliers.)
  8. Remove the cable lug from the terminal studs.
  9. Loosen the captive screws on the power supply faceplate.
  10. Carefully move the power cable out of the way.

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