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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.
In 1940, he had moved his family to Hamilton East where he continued to manufacture his electric fence. Shortly afterwards, he, his other brother Vivian, and a friend began working in Wellington, making electric fences and gas producers for use with vehicles. [1] During this time, he invented a filter for a gas producer. [3]
As the war continued and more and more victims fell to the electric fence, it became known as simply De Draad meaning "The Wire". To the German authorities it was officially known as the Grenzhochspannungshindernis ("High Voltage Border Obstacle"). Parallels have been made between the 'Death Wire' and the later Iron Curtain. [1]
Stockade fence, a solid fence composed of contiguous or very closely spaced round or half-round posts, or stakes, typically pointed at the top. A scaled down version of a palisade wall made of logs, most commonly used for privacy. Wattle fencing, of split branches woven between stakes. Wire fences Smooth wire fence; Barbed wire fence; Electric ...
Electric fencing became widely available in the 1950s and has been widely used both for temporary fences and as a means to improve the security of fences made of other materials. It is most commonly made using lightweight steel wire (usually 14-17 gauge) attached to posts with insulators made of porcelain or plastic .
This page was last edited on 31 January 2008, at 08:39 (UTC).; Text is available under the Creative Commons Attribution-ShareAlike 4.0 License; additional terms may apply.
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