AC power cords carry alternating current from one area to another ... Y represents the connector's rated amperage, and the remaining Z digit is either an "R" (female receptacle) or "P" (male plug).

In the diagrams below, A shows an ac voltage, and B shows a dc voltage. The UK mains supply is connected to appliances in the home by using a plug. The plug contains three wires – the live ...

The cable between the device and the three-pin plug contains three copper wires that are coated with plastic. Neutral wire Copper wire coated with blue plastic that also connects to the cable in ...