Does an electric fence act as a deterrent?
Yes, research shows that an electric fence is both a physical and a psychological barrier. It therefore does act as a deterrent and is your first line of defence.

How often should an electric fence be serviced?
An electric fence is exposed to the harsh African climate 24 hours a day, causing the component parts to continuously crack, break and rust. If an insulator breaks causing the electric fence wires to touch the bracket of the fence, the bracket will draw power from the fence and eventually result in the earthing of the circuit. If the wires of an electric fence rust the flow of electricity will be obstructed by the rusted wires causing less power to travel along the electric fence. An electric fence must therefore be tested regularly and must be constantly maintained to ensure that it is working at optimal capacity at all times.

What is a good voltage reading on an electric fence?
The industry standard for a good voltage reading on an electric fence ranges from 7.500 volts up to 9.900 volts. The maximum voltage allowed by law is 9.900 volts. The average energiser settings are calibrated up to 9.900 volts to allow for fluctuations.

What happens if there is a power failure?
A good electric fence energiser has a built in battery back-up system which automatically kicks in when there is a power failure. The battery should keep the fence running at full voltage for between 6 to 8 hours.

When should an electric fence alarm activate?
An electric fence alarm will activate when the circuit is earthed and cannot complete itself. This happens when a wire is cut or breaks as result of wear and tear, or when a live and an earth wire touches.

Does foliage that touches an electric fence affect the system?
Foliage touching an electric fence acts as a conductor of electricity and drains the power from the electric fence causing the circuit to be earthed. This commonly activates a false alarm. Foliage must therefore be trimmed away from the fence perimeter on a regular basis.

If an electric fence is clicking does that mean that it is not working?
A clicking sound doesn’t automatically mean that the fence is faulty. The clicking or arching could mean that something is touching the fence (such as a leaf or insect), that there is water on the fence (during wet weather or as a result of sprinklers), that there is a cracked insulator or that a live wire is touching a bracket. It should be attended to as the clicking will eventually “weld” through the wiring causing the system to malfunction.

If I turn off the power to my energiser during an electrical storm, will it prevent lightning damage?
An electric fence’s wires run directly into the energiser. Accordingly even if you switch off the power to your energiser, this will not prevent the unit from blowing if it is struck



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