Advantages of an electric fence

2015-04-30 14:27

AN electric fence was primarily developed for the restriction of animal movement. Since that time the security industry used the initial technology and improved on it to give a system using wires fitted on insulators and powered by an energiser capable of delivering a substantial and most uncomfortable shock.

The energiser in simple terms is a transformer that can convert low power to a huge quantity of power to the person touching the wires. The energiser used for this purpose will not allow anyone to be killed as the unit is designed to allow the power to pulsate on/off on a continuous basis. Therefore, unlike power in the house (where the possibility exists that you could die if experiencing a shock), the electric fence power switches on and off momentarily and therefore is termed a non-lethal electric fence.

The professionally-made energisers conform to strict legislation and must comply with such governing bodies as the government, post office and SABS. This legislation has been introduced to stop the public from being fatly shocked. The maximum voltage allowed in South Africa is 10 000.

There is also other controlling legislation such as the minimum permissible installation height, warning signs and earth conductors, etc.

Three advantages of an electric fence:

• visual protective appearance and this also acts as a psychological barrier;

• shock capacity; and

• alarm given.


Should you install an electric fence the visual appearance will be a deterrent. The psychological aspect is that you feel safer once it has been installed.


When correctly wired and the right size energiser installed, the shock experienced will be of such a magnitude that it would deter a person from trying to enter the premises.


It places a 24-hour monitor on the perimeter. If wired correctly the electric fence will go to an alarm when the wire is cut or shorted.

By installing a correctly fitted electric fence the chances of the criminal gaining access, or being able to make a quick escape and/or get-away are minimised, therefore you are at an advantage over a property not fitted with electric fence.

- Sourced

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