The ground point in a system that provides the lowest voltage-reference point, or "earth." An earth ground usually connects to a power-line ground, a ground rod, or in some cases, cold-water plumbing. An earth ground should not carry current.
The ground point in a system that provides the lowest voltage-reference point, or "earth." An earth ground usually connects to a power-line ground, a ground rod, or in some cases, cold-water plumbing. An earth ground should not carry current.