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Electric Fencing

Electric Fencing Equipment

Electric Fencing Equipment 

Electric fencing is quite simple and straightforward to erect and consists of 4 main components:

An energiser - This can be either mains or battery-powered or both/dual. Or even solar. The electric fence energiser converts electical power into high voltage pulses: which become the 'shock' that is felt by an animal which comes into direct contact with it. The fence's energiser terminal (+ve) is connected to the insulated fence wires.

The effectiveness of your energiser varies according to the length and condition of your fence, the quality of earthing and the amount of vegetation. Farm Signs have charts and tables to help customers select the correct power source to optimise efficiency.

The conducting line - This is the actual physical barrier that prevents intrusion: be that bovine, equine or other. Multiple options are available: basic wire, a more elaborate netting, poly-tape, poly-rope or twine, of which carries a wide variety. Its purpose is to carry the current along the fence and deliver the pulse when touched.

Insulation - The task of insulators is to isolate the conducting wire through which the current travels in relation to the earth. Electricity likes to take the path of least resistance. In the case of electric fencing, that's a beeline straight to the ground. Electric fence insulation prevents the power from 'shorting' and draining out of the conducting wire.

An earth stakeEarthing of an electric fence ensures that the current loop is closed, and that power returns to the energiser. Without a good earthing system animals will receive only a mild shock or even none at all. An earth stake is a metal rod that is inserted into moist ground. Depending on the length and power of your fence, multiple stakes will be required, spread at least 3m apart.  

How Electric Fencing Works 

Whether battery, solar or mains powered, an energiser unit converts power into high voltage pulses. These are carried through the conducting line, acting as your electrified barrier. If this line is touched by an animal, the flow of the current is diverted through the animal into the soil and back to the energiser. It is a closed power loop, and anything included in the power flow will feel the pulse. Animals realise that the fence causes a short pain and learn to stay away.   

How safe is Electric Fencing?

Electric fencing is considered safer than many conventional fencing methods. Using only low amps, the energiser emits its intermitent pulse once every 1-2 seconds and it lasts for only a fraction of a second. Other fencing options such as barbed wire have been known to cause injury, while other options can be expensive. 
Animal & Livestock Signs
Animal & Livestock Signs