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Oracle® Rack Cabinet 1242 User's Guide

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Updated: June 2020
 
 

Attach a Grounding Cable for TN Power Systems

Rack PDUs achieve earth ground through their power cords. Final chassis ground is achieved when the power cord is connected to a receptacle, where the ground prong contacts the power receptacle.

For additional grounding, you can attach a chassis earth grounding cable to the rack. The additional ground point allows current leakage to dissipate more efficiently.


Caution

Caution  -  The PDU power input lead cords and the grounding strap must reference a common earth ground. Otherwise, a difference in ground potential can be introduced.



Caution

Caution  -  If you are unsure of the facility PDU receptacle grounding, do not install a ground cable until a proper PDU receptacle grounding has been confirmed. If a difference in ground potential is apparent, you must take corrective action.



Note -  A grounding cable is not shipped with the rack.
  1. Ensure that the installation site has properly grounded facility PDUs in the data center.

    The facility PDU must be earth ground.

  2. Ensure that all grounding points (raised floors and power receptacles) reference the facility PDU ground.

    Caution

    Caution  -  During manufacturing, the ground cable attachment area might be a painted surface. Ensure that metal-to-metal solid contact is made for this installation.


  3. Use a T-30 Torx screwdriver to attach the grounding cable to the rack grounding terminal.

    The grounding terminal is located under the cabinet between the two rear casters on the inside of the caster plate.


    image:Picture shows the grounding cable being attached to the                                 cabinet.