Your home consists of parallel circuits of alternating current. This means that each device acts independently from one another (in ideal circumstances). Switches and breakers are connected in series with the loads in a household for control and protection. The series switch/breaker breaks the electrical connection from the hot
side of a circuit.Hot wire
- black or red - this the the "dangerous" wireneutral wire
- white - this wire completes the circuit at the electrical boxground wire
- protection wire in case a hot or neutral wire slips off terminal and does not trip the breaker
The neutral and ground wires are connected together at the electrical box. From there, a connection is physically made to the earth typically via a water pipe or copper rod.
Please review the attached documents for additional information.