7 Explanation of symbols Symbols Description Unit Explanation Theoretical Fence Length VDE (2000V) Km With fence lengths in accordance with VDE, only a theoretical value is given, which, as a result of various influences (fence vegetation, weather and soil conditions) cannot be reached in practice. Maximum Fence Length with Varying Vegetative Growth Km Vegetation on the fence has a considerable influence on the max. fence length for an electric fence 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. Approximate Number of Electrifiable Nets Quantity required For 230V and 12V devices, the maximum number of 50m lines to be used is given. Voltage Supply 230V Volts Devices with power supplies (230V) should be used in permanent fencing solutions to avoid unnecessary maintenance and ensure maximum power on line at all times. Voltage Supply 12V or 12V Solar Volts 12 volt battery chargers are the ideal solution for long fences or fences with considerable amounts of vegetation in the event that no power supply is available. 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 230V or 12V Volts This type of device combines the unlimited protection duration of the 230 volt devices with the mobility of the powerful 12 volt devices. Voltage Supply 9V 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 vegetation if no power supply is available. Voltage Supply 2 x 1.5V Volts 3 volt devices are mobile and easy to handle, and are suitable for fences without vegetation, such as in gardens, horse-training paddocks and game pen control. Power Consumption mA The duration of the battery life can be calculated from the energy consumption along with the capacity of the battery.
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