How to Install a Residential Grounding Electrode

A proper ground is the single most important safety feature in a residential electrical system. In the event of a short-circuit or other malfunction, the grounding system is designed to divert dangerous voltage away from technicians and residents. Driving a long copper rod, or electrode, into the ground and bonding it to the electrical system is one method for achieving a proper ground. To ensure adequate grounding, the rod, bonding conductor and grounding system inside the home must be of the correct size, installed correctly and tested before use.

Shovel
Step ladder
Assistant
Grounding rod
Post hammer
Bonding conductor
Wire cutters
Bonding clamp
Adjustable wrench

Instructions

- 1
  Choose a grounding-rod location in accordance with local ordinances and regulations.
- 2
  Dig a depression approximately one foot square and six inches deep in the chosen location.
- 3
  Have an assistant hold the grounding electrode vertically in the center of the depression. Stand on a step ladder and place a post hammer over the top of the grounding rod.
- 4
  Lift the post hammer up and let it drop down onto the grounding electrode, driving the electrode into the ground. Continue lifting and dropping the hammer until the top of the electrode is level with or slightly below ground level.
- 5
  Run a length of bonding conductor from the top of the electrode to the main breaker panel. Cut the conductor to length.
- 6
  Slide a bonding connector onto the electrode. Tighten the nut with an adjustable wrench to fasten the connector to the electrode. Loosen the terminal screw on the side of the connector. Slide the end of the electrode into the terminal and tighten the screw to bond the conductor to the electrode. Fill the depression with dirt.
- 7
  Connect the bonding conductor to the main breaker panel according to the breaker panel manufacturer's instructions.

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