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Grounding Diagram and Procedure
Figure H - Grounding Diagram
To ground the cabinet, see Figure H above.
1. Drive the ground rods into the ground near the cabinet location.
2. Use a Megger-type ohmmeter to measure the resistance between cabinet ground and the ground rod. The
resistance must be 25 ohms or less.
3. If the resistance requirement in Step 2 is met, proceed to step 4. Otherwise, follow local practices to lower
the resistance to ground.
4. Connect a #6 ground wire to the ground rod.
4300-A2-ZZ40-20
Front view of cabinet with
door open
Internal Grounding bus
Ground Rods
November 2005
4300 4U Outdoor Cabinet Installation Instructions
17
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