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Electric Fence


After a brief and controversial period, the future of electric fences was in jeopardy. Animals' rights activists complained that it was cruel to shock an animal to prevent it from escaping. These arguments didn't hold up under scrutiny. Stray animals are a danger to themselves and to others.

Imagine if a cow were to wander out onto the road. An accident could potentially kill the passengers of the car and kill or cause irreparable damage to the cow. So electric fencing is back and is now better than ever.

Just try touching an electric fence and you'll know why it works. While not explicitly painful, you will remember not to touch it again. Animals learn this valuable lesson almost as quickly.

How It Works
Here's a rough guide detailing how an electric fence works to protect your investment.

  • The above ground, active part of the system consists of a wire fence that is electrically charged.

  • Power is pushed through the fence by a charger (or energizer). In order to comply with safety standards, the majority of systems send the power through a series of pulses, about one per second. This allows a person or animal time to let go or break contact with the fence.

  • A ground system is laid in the earth. It is most commonaly made up of a series of metal rods which are connected to the charger through a ground wire. The system remains inactive until a person or animal touches the both the fence and ground. Once activated, the ground system draws the charge through the person and back to the charger through the ground wire.

Basically, electricity will only flow if the circuit is closed. When the fence is free standing, there is no current flowing through it. When a horse or any livestock touches the fence they close the circuit and the fence becomes electrified, thus administering a small shock.

When you buy an electric fence, there are two factors that will determine what kind of charge is delivered. If you want the charge to carry across a long distance, you will need a high voltage. If you need to increase the strength of the shock, you will need to increase the amperage.

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