Electric Fence Systems Kenya

How an electric fence works, and what a complete system needs

An electric fence is a deterrent and an alarm in one. An energiser sends a short high-voltage, low-current pulse along wires on the wall. If someone touches, cuts or climbs over the wires, the voltage changes and the alarm sounds.

How it works, step by step

1Energiser

2Fence wires and insulators

3Alarm siren and strobe

4Control keypad

5Earthing

What a complete solution includes

Energiser

Creates the pulse and watches the line for faults.

Tip: Choose an energiser rated for the length of fence. Too small and the voltage drops on long runs.

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Fence wire and insulators

Stainless or galvanised wire held off the wall by insulators.

Tip: Use proper high-tension wire and strained posts, not loose wire.

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Outriggers (arms)

Brackets that hold the wires above a wall or fence.

Tip: Choose the right arm for the wall top and number of wires.

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Siren and strobe

Sounds and flashes when the fence is touched or cut.

Tip: Position a strobe where neighbours and guards can see it.

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Control keypad

Arms and disarms the fence and shows which zone alarmed.

Tip: Zone the fence into sections so you know where the intruder is.

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Earthing

A buried earth rod system that completes the circuit.

Tip: Poor earthing is the most common cause of a weak or faulty fence.

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Backup battery

Keeps the fence live during power cuts.

Tip: Size it for at least a full night of operation.

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Warning signs

Required to warn people the fence is energised.

Tip: Place one at regular intervals along the fence.

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