Within a building or single facility there is only one common ground for all of the electrical systems.
Grounding connectors electrical power to earth true or false.
A ground fault is a type of fault in which the unintentional pathway of the straying electrical current flows directly to the earth to the ground.
Here too the circuit is short in that it has bypassed the circuit wiring so a ground fault can technically be defined as one type of short circuit.
Exposed metal parts of electrical equipment are connected to ground so that failures of internal insulation will trigger protective mechanisms such as fuses or circuit breakers in the circuit to remove power from the device.
Not only does a false ground electrical receptacle lack an actual safe alternative path to earth through a separate ground path or grounding conductor but worse the ground connection by being wired to the neutral side of the circuit can cause dangerous electrical shock as well as damage to equipment plugged into such an electrical outlet.
This system is referred to as the grounding electrode system ges.
Provides a path for surges in your power systems conducting electrical energy to earth to prevent arcing heating or an explosion during a lighting strike.
Electrical circuits may be connected to ground earth for several reasons.