What is the Red Wire in Electrical? Why it is Used with Examples?

A quick overview of what a red wire is used for in electrical.
While this is the usual red wire usage an installer may not be following the standards.
This is Standard USA Use
Electrical Red Wire Usage Examples
3-Way Switch
240-Volt Circuits (Electric dryers, ranges, and air conditioners)
Switched Outlet
Dedicated Circuits
Specialized Wiring
Electrical Wiring Color Codes
Green = Ground
White = Neutral
Black = Hot
Red = Hot

[@solairegun4667]

So it’s just a black wire just red

[@joeybalogny6095]

Its 120 volt hot wire used for maybe half hot 3 way/ garbage disposal dishwasher will have a split outlet red and black so red is switched garbage disposal red is 120 volt hot.

[@user-jw7st1kf9l]

Ooo so like extra push of a current

[@joeybalogny6095]

Its a hot so its say for example garbage disposal dishwasher you would need the black for dishwasher and the red for garbage disposal or a fan the black would be for fan the red for the light on the fan.