Intelligent Fencing Systems :: Electric Fence Alarms with Weed Alert

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The only difference between a secure livestock fence, and a perimeter security fence is that one is designed to keep animals in, and the other is designed to keep people out.

Both types of fences depend the psychological effect of painful shock for effective deterrent and the design specifications are the same for bulls, horses, pigs, and humans. The goal being, is to keep the animal from going through, under, or over the fence without getting painfully shocked.

Farm animals have been penned with electric fences for almost 100 years and the parameters have been long established for different types of animals. So here we will concentrate on the human animal.

Man is capable of thinking his way through an electric fence by cutting or shorting the conductors. There is probably no configuration that is 100% effective, 100% of the time, so we will shoot for 99.9%

(click on picture to expand) Many walls are decorative and will keep honest people out, but will not keep a determined intruder out. The wall is tough and not likely to be cut, sawed, or chiseled through, so the only thing we worry about is someone climbing over.

Fence Hawk Video (Basic Perimeter Security)

A couple of electrified strands will make this wall virtually impossible to climb over without getting painfully shocked. With a voltage monitor to provide an alarm if the strands are cut or shorted, then you have solid secure perimeter defense. Two or more strands strategically stretched across the top of this wall will provide good security without compromising the aesthetics of your decorative wall excessively.

A chain link fence presents some different problems. We not only have to keep the trespasser from climbing over, we have to keep him from cutting through, as chain link fencing can be easily cut with small bolt cutters. (click on picture to expand)

Fence Hawk Video (Electric Fence Applied to Chain Link Fence)

For a fence like this one, we would recommend maybe (4) strands extending the height of the fence. We would also recommend about (4) strands mounted on the inside of the fence equally spaced. The conductors on the inside are out of reach of accidental touching or bumping into. However, if the chain link is cut, and pushed inward, the "charged" wires are shorted to ground and set off the high voltage monitor alarm. If the chain link is cut and pulled away from the "charged" conductors, the inside wires make it extremely hard to crawl through without getting painfully shocked.

(click on picture to expand) A wall presents essentially the same conditions as the first example. A couple of strands strategically mounted across the top will be a very effective deterrent. A trespasser can easily climb the highest walls. We suggest you make it secure.

Refer to the design section and picture section for additional solutions. Just contact us with specific questions.

A couple of things to remember:

Sufficient grounding is critical. More grounding with ground rods is always better. Its the good ground conductivity that provides a painful shock through dry cement while wearing rubber soled shoes and leather gloves.
For the same reasons as above, chose a fence energizer that provides a high voltage pulse. Its not the joules that will do this, but the actual "pulse voltage". We usually recommend a minimum of 8 to 10 kilovolt pulse output. In this application, more is more effective.

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