The wiring system used for security fencing is known as the earth return method and consists of a varying number of alternate positive (live) and negative (earth) wires. It has three major
advantages:Deterrent Effect An intruder will receive an uncomfortable shock either by touching a live wire and earthing to ground or by making simultaneous contact with an earth wire and a live
wire. To achieve this deterrent effect it is preferable to have 6500 to 8000 V with 1.5 to 3J energy on the fence line.Detection Capability The system will generate an alarm signal when an earth
and a live wire make contact and short the system, or if the circuit is broken by cutting any of the wires.ReliabilityElectric Security Fencing Technology is inherently tolerant of environmental
conditions and is made more so with Dynamic Voltage Monitoring. With this feature the fence detection focus is on sudden, abrupt changes in voltage, allowing the system to ignore seasonal changes
caused by vegetation growth or weather changes.