We are the main Distributors for Gallagher Power Fence Systems in Limpopo
How does an Electric Fence work?
Electric current (AMP's) only flow when a circuit is completed between a positive and negative terminal.
In this diagram the current cannot flow from the positive terminal to the negative terminal because the switch is open.
In this diagram the switch is closed, allowing the current to flow from the positive terminal through the light bulb (lighting the bulb) to the negative terminal.
An Electric Fence circuit draws on the same principles but on a larger scale. The energizer fence terminal (positive) is connected to the insulated fence wires, and the energizer earth terminal (negative) is connected to a galvanised metal stake driven into the ground.
For example, a bird sitting on the fence wire would not receive a shock. It would not be touching the ground (or an earth wire) so the circuit would not be completed. There are a few basic rules that apply to electric fence construction that make the whole process a little easier to understand.
The same 'circuit completion' (as in Diagram B) is necessary before a person gets a shock. A person standing on the ground and touching the electrified wires will complete the circuit like the closed switch in Diagram B .
Link to South African Security Fence Site