Those who often have uninvited guests in their garden or on their property have few humane ways to keep them away. One possibility is an electric fence, as it is used in agriculture. This gives out noticeable, but harmless surges when someone comes too close.
Depending on the structure, electric fences are suitable for large or small animals. Owners of a bird aviary, for example, want to protect themselves from the neighboring cat, vintage car lovers from martens, chicken farmers from foxes. We will show you how to build a practical electric fence for your particular application.
By the way: what keeps outside keeps inside, too. So you can, of course, also prevent your livestock or your small animals with an electric fence on the unauthorized outbreak.
Electric fence: Important notes
An electric fence, small as it is, must meet specific structural requirements to be allowed to operate in Germany. For example, in the case of fences on traffic routes (this also includes, above all, footpaths), a sign saying: Caution, electric fence! (see picture).
Also, all parts should be checked regularly to ensure proper operation. The fence should also be kept free from fouling. The electrical voltage is otherwise useless discharged into the plants, which increases the power consumption.
Animal rights activists, beware: An electric fence is undoubtedly not too true measure; it also awakens unpleasant associations. However, modern technology ensures absolutely “civilian” electric shocks: The wall is charged with about 5,000 V, but the current strength and this is crucial, is comparatively tiny. The resulting shock to humans and animals is therefore completely harmless and without consequences, but educationally effective!
Electric fence construction
A and O in an electric fence is a practical grounding: otherwise, the fence device can not build up the proper voltage. The earthing rod is included with most energizers and should be hammered as deep as possible into the ground.
It is also essential to carefully install the insulators on the fence posts.
Electric fencing units are also subject to standards in Germany: Only devices with the designation VDE 0667 or newer, EN 61011 may be used. The marking is visible on correct pasture energizers.
Put electric fence
Before you set the fence, you should first be aware of what type of animal you want to keep. In small animals, a tight-meshed distribution of the wire is recommended; for example, cats can crawl under 15 cm pasture fence height, not to mention martens.
The fence should not be too low; many animals can jump or climb and are also very smart: Especially cats often find surprising ways to overcome such an obstacle. Therefore, pay attention to possible climbing and jumping aids (trees, walls) in the vicinity of the fence.
After setting the fence poles, screw in the insulators, making sure that the distances are correctly adhered to. The insulators should be firmly screwed in, but not too close to the wood. If this gets wet in rainy weather, creeping currents and sparking may occur.
Then the fence wires are firmly connected and clamped to the fence. The earthing spike is rammed firmly and deeply into the ground. Then you should turn on the device on a trial basis.
It is recommended in this context, a “fence control view” (available from specialist dealers). It measures the voltage in the fence and indicates the timing of the fence voltage by LEDs. Also, it goes out if the minimum voltage of 3000 V is exceeded. Thus, in particular, for non-permanently used fences, a functional guarantee can be given.
Supply and connection – power supply
If the area protected by the electric fence is far away from a mains voltage supply, there are also electric fencers with battery or battery operation. Of course, the latter has to be checked more frequently.
Of course, electrical lines for fence voltage supply can also be laid: Here, it is advisable to put it in a sturdy plastic tube, buried at least 80 cm deep in the ground. Thus, the cable cannot be eaten by animals or damaged in gardening.
We wish you every success in the installation and operation of your electric fence.