There are many schematic diagrams used to describe electrical equipment circuits, one of which and the most frequently used is a wiring diagram.
Wire diagrams or wiring diagrams are simple work drawings / drawing diagrams that describe a series of wiring or wiring of electronic equipment with the help of symbols in a simplified form.
A wiring diagram is like a map that shows the function of an electronic device and its constituent components which are interconnected as an electronic circuit. And shows the flow of current in electronic circuits.