than 0.5 kV. Anything higher than this indicates that better earthing is required. Either add
more earth stakes or find a better ground area to drive in the earth stakes. A voltage of
below 0.2 kV would be best.
Note:
When earthing energisers located in dairies, earth at least 20 m (65') away from the
dairy using doubleinsulated wire to avoid touching the dairy building or equipment.
Energiser
Earth
DVM
Earth
Safety Considerations
Safety considerations according to European Security Standard EN 60335-2-76
Definition of special terms
Energiser – An appliance that is intended to periodically deliver voltage impulses to a fence
connected to it.
Fence – A barrier for animals or for the purpose of security, comprising one or more conduc
tors such as metal wires, stakes or rails.
Electric fence – A barrier which includes one or more electric conductors, insulated from earth,
to which electric pulses are applied by an energiser.
Fence circuit – All conductive parts or components within an energiser that are connected or
are intended to be connected, galvanically, to the output terminals.
Earth stake – Metal structure that is driven into the ground near an energiser and connected
electrically to the output earth terminal of the energiser, and that is independent of other eart
hing arrangements.
Connecting lead – An electric conductor, used to connect the energiser to the electric fence or
the earth stake.
Electric animal fence – An electric fence used to contain animals within or exclude animals
from a particular area.
Pulsed conductors – Conductors which are subjected to high voltage pulses by the energiser.
Requirements for electric fences
Electric fences and their ancillary equipment shall be installed, operated and maintained in a
manner that minimises danger to persons, animals or their surroundings.
Energiser
short circuit
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