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The third planet from the Sun and the largest of the four inner, or terrestrial, planets. The Sun is an average-sized, middle-aged star situated...
Intentional electric connections to a reference conducting plane, which is typically earth (hence the use of the term “ground,” of “earth” in British...



= Encyclopedia Article; = Research Update
Figure 1.Each conductively isolated portion of a distribution system requires its ground.
From Encyclopedia article 'Grounding'
Figure 10.Surface-potential control in an earth-floor electrical station obtained by a mesh grid of buried grounding equalizing conductors. (a) Physical pattern of conductors in one bay. (b) Station surface potential Es above mean earth potential during a local L-G fault.
From Encyclopedia article 'Grounding'
Figure 2.Symbol to denote connection to a reference ground that is independent of earth.
From Encyclopedia article 'Grounding'