An electric fence is a FIRST LINE OF DEFENSE barrier that uses electric shocks to deter animals or people from crossing a boundary. The voltage of the shock may have effects ranging from uncomfortable, to painful or even lethal. Electric fences are designed to create an electrical circuit when touched by a person or animal.
A component called an energizer converts power into a brief high voltage pulse. One terminal of the energizer releases an electrical pulse along a connected bare wire bout once per second. Another terminal is connected to a metal rod implanted in the earth, called a ground or earth rod. A person or animal touching both the wire and the earth during a pulse will complete an electrical circuit and will conduct the pulse, causing an uncomfortable electric shock.