Grounding Rod (Grounding Electrode)

The 8-foot copper-clad rod driven into the soil near your meter, connecting your electrical system to the earth itself. Modern installs use two rods or a foundation-embedded electrode.

The earth connection does a different job than the equipment ground inside the house: it stabilizes the system's voltage relative to the ground you stand on and gives lightning and utility surges a path that is not your wiring. The rod, the clamp and the heavy bare copper wire running to it (the grounding electrode conductor) are the visible parts; newer construction often uses a concrete-encased electrode (Ufer ground) in the foundation instead.

Inspection findings here are common and cheap to fix relative to what they protect: a corroded or disconnected clamp, a cut conductor from landscaping work, or a single rod where code now wants two. If your home also has a pool, gas piping or a generator, those systems bond into the same electrode system.

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More in Grounding & Faults
  • Ungrounded (Two-Wire) Circuits : Pre-1960s circuits with only hot and neutral, no ground conductor.
  • Bootleg Ground : A jumper from the neutral screw to the ground screw inside an outlet box, installed to fool testers into showing "grounded.
  • Ground Fault : Current escaping its intended path and flowing to ground through something else: a damaged cord, water in a fixture, or a person.
  • Arc Fault : Electricity jumping a gap at a loose or damaged connection, creating sparks at thousands of degrees inside walls.

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