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How many wires in which height?
4
Symbols
Description
Unit
Explanation
Grounding
Piece
In order to enable electricity to flow freely from the ground to the device, optimal contact should be
ensured between the earthing rod and soil (dry soil is a poor electricity conductor). The earthing rod (which
must be galvanised) should therefore be driven into a damp area, or the length of the earthing rod should
be measured to ensure that deeper, damper soil layers are reached. The recommended number of earthing
rods depends on the power class of the device.
Resistance
Ohms
The following resistance can be identified in a fence system:
Earthing resistance => should be as low as possible
Conductive material resistance => displayed in Ohm/metres. The smaller this value, the better the
material‘s conductivity. The conductivity requirements of the material used increase with the length of the
fence. The best materials have a resistance smaller than 0.25
Ω
/m.
Isolator resistance => should be as high as possible
Max. Voltage
Volts
This voltage is reached with a low fence charge.
Voltage in Open Circuit Volts
Voltage when no fence system is connected to the electric fencer device.
Voltage at 500 Ohms Volts
Voltage at a fence charge of 500 Ohm.
Stored Energy
Joules
Energy absorbed by device. The electric fender efficiency ratio yields the relevant discharge energy value for
the user.
Max. Output
Joules
Maximum energy transmitted from the device to the fence system. This pulse is also identified as shock
strength.
Output Energy
Joules
Minimum energy transmitted from the device to the fence system. This can be reached through a fence
output with reduced power or through selecting the lowest power level of an electric fencer device.
Theor. Fence Lenth
VDE (2000 V)
km
Concerning fence systems in accordance with VDE, only theoretical values are given, which, as a result of
various influences (fence flora, weather and soil conditions) cannot be reached in practice.
Max. Fence Length
with Varying Vegetati-
ve Growth
km
Flora on the fence has a considerable influence on the max. fence length for an electric fencer device. The
more vegetation on the fence, the higher the fence charge will be, thus reducing the max. fence length.
The fence length indications refer to highly conductive wire material and connectors, good isolators and an
optimal earthing system!
Approx. Number of
Electrifiable Nets
Piece
For 230 V and 12 V devices, the maximum number of 50 m lines to be used is given.
Voltage Supply
230 V
Volts
Devices with power supplies (230 V) have an unlimited protection duration. These are available in all neces-
sary power classes and are the best solution for power provision to long fences. Even in the event of heavy
vegetation, sufficient energy is supplied to the fence.
Voltage Supply
12 V or 12 V Solar
Volts
12 -volt battery chargers are the ideal solution for long fences or fences with considerable amounts of
fauna in the event that no power supply is available. The discharge energy can be compared to the power
supply units. Rechargeable 12-volt wet cells are used as a source of power. A useful addition are solar
modules, which are offered in a range of power classes and transform solar energy into electricity.
Voltage Supply
230 V or 12 V
Volts
This type of devices combines the unlimited protection duration of the 230 V devices with the mobility of
the powerful 12 V devices.
Voltage Supply
9 V
Volts
The 9-volt dry battery devices are characterised by their excellent mobility, coupled with a long battery life.
They are ideal for short fences with moderate flora if no power supply is available.
Voltage Supply
2 x 1.5 V
Volts
3 V devices are mobile and easy to handle, and are suitable for fences without vegetation, such as in
gardens or horse-training paddocks.
Power Consumption mA
The duration of an electric fencer device can be calculated from the power consumption along with battery
or accumulator capacity.