The basic concept of shock protection is that electrons must be "deflected" from the person. Knowing that a copper conductor is a million times better conductor than the human body, it is evident that if we offer electrons two paths for them to circulate, one being the body and the other being a conductor, the vast majority of them will circulate through the latter, minimizing the effects of shock on the person. This conductor through which electrons that “escape” from the devices will circulate is called the earth conductor.
As the function of the ground conductor is to "collect" "fugitive" electrons, having nothing to do with the proper functioning of the device, people often forget its importance for safety. It is like in a car: it is possible to make it work and transport us to the desired location, without wearing a seat belt. However, it is known that the risks related to safety in the event of an accident greatly increase without its use.
