Electric fence
Shock barrier to contain animals or people / From Wikipedia, the free encyclopedia
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For other uses, see Electric fence (disambiguation).
An electric fence is a barrier that uses electric shocks to deter people and/or other animals[note 1] from crossing a boundary. The voltage of the shock may have effects ranging from discomfort to death. Most electric fences are used for agricultural fencing and other forms of non-human animal control, although they are also used to protect high-security areas such as military installations or prisons, where potentially-lethal voltages may be used. Virtual electric fences for livestock using GPS technology have also been developed.