The colour of wires is determined by the type of wiring and the location of the wire. A common two-wire ungrounded circuit in the United States has a red positive wire and a black negative wire.
The positive wire in a two-wire system with a negative ground is red, and the negative wire is white. The positive wire in a two-wire system with a positive ground is white, and the negative wire is black. Finally, there are three-wire systems that include a white-colored “centre tap” wire. These systems have a red positive wire and a black negative wire.
Read more: HC2H3O2 is a chemical compound with the formula HC2H3O2