Ground (electricity)

Uncommon card · No. 148424

In electrical engineering, ground or earth may refer to reference ground – a reference point in an electrical circuit from which voltages are measured, earth ground – an electrically neutral node that has a lot of available charges (e.g. the physical ground of Earth), or common ground – a common return path for electric current (also called neutral in electric power systems). Ground current or earth current is the current that flows through a reference ground, earth ground, or common ground. To ground or to earth an object is to electrically connect the object to a reference ground, earth ground, or common ground. Electrical circuits may be grounded for several reasons. A protective earth conductor (PE conductor) is a conductor that is used for electrical bonding, that is, connecting an electrical equipment from its exposed and conductive but normally unenergized part to common ground. If the conductor is a wire, it is also called ground wire or earth wire. Ground wire is often used for...

Read on Wikipedia · Image CC BY-SA 3.0