16 An electric fence system consists of: A) An electric fence unit that generates regular electric pulses. B) One or more wires that transport electricity (although these do not necessarily have to form a closed loop). C) Insulators that isolate the electricity from earth. D) Permanent or mobile posts that can be used as required. E) The earth of the electric fence unit, which should be buried as deep as possible in damp soil. If the animal touches the wire, an electric circuit is closed, i.e. the electric current flows through the animal and the earth back to the unit. The animal consequently receives an unpleasant, though harmless, electric shock and retreats. An electric fence system of this kind is used successfully to pen animals in and also to keep other animals out. Make sure there are at least 2500 V at every point of the fence. This is how an electric fence system works! Permanent fence with 230-Volt supply voltage A Electric fence device B Conductor material C Insulators D Posts E Earthing F Connections G Gate system H Safety components Mobile fence with 9 volt or 12 volt supply voltage H H H G F F F E E D D C B B A A
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