![]() ![]() Under normal conditions, a grounding conductor does not carry current. The terms ground and earth are used synonymously in this section ground is more common in North American English, and earth is more common in British English. Ground or earth in a mains ( AC power) electrical wiring system is a conductor that provides a low- impedance path to the earth to prevent hazardous voltages from appearing on equipment (high voltage spikes). Where a neutral conductor is used also to connect equipment enclosures to earth, care must be taken that the neutral conductor never rises to a high voltage with respect to local ground. Current carried on a grounding conductor can result in objectionable or dangerous voltages appearing on equipment enclosures, so the installation of grounding conductors and neutral conductors is carefully defined in electrical regulations. Under certain conditions, a conductor used to connect to a system neutral is also used for grounding (earthing) of equipment and structures. ![]() As the neutral point of an electrical supply system is often connected to earth ground, ground and neutral are closely related. ![]() The ground circuit is connected to earth, and neutral circuit is usually connected to ground. In electrical engineering, ground and neutral are circuit conductors used in alternating current (AC) electrical systems. For aircraft stability in pitch, see Longitudinal stability. ![]()
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