Electrical outlet wiring can be done in two ways:
Ring main wiring
In ring main wiring method a loop of each wire (Live, Neutral, and Phase) is made starting from the first outlet to last outlet and then again back to the original point. The ring main provides a two-way flow of power from one point to another. The figure below displays the ring main wiring diagram for electric power outlets.
Radial wiring
In radial wiring diagram the live, neutral, and earth starts from the first device and ends at last device. The wire terminates at last point and is not returned back to the original point.