Key Terminology

AC	Alternating current, AC power supply 110 - 120 V or 220 - 240 V.
Amp	Unit of current. Short for Ampere.
Capacitors	Used to store energy in the energizer.
Current	Duration and magnitude of current causes the shock given by the electric fence. Increasing the voltage increases current, while increasing resistance decreases current.
DC	Direct current, battery power supply (e.g. 12 V battery input).
Fault / Short	Energy loss from the fence (i.e. live wire lying on the ground, vegetation growing over the fence, etc.).
Ground System	The rod(s) in the ground connected to the ground terminal on the energizer.
Joule	Unit of energy. One joule is one watt of power for one second.
Lead Out Wire	Section of underground cable or wire that carries the electrical current from the energizer to the fence.
Live	The current-carrying wire connected to the energizer fence output terminal.
Ohm	Unit of resistance.
Output Energy	Effective energy delivered by the energizer. Also known as output joules.
Pulse	Brief electrical current given by an energizer, approximately 0.0003 seconds per pulse.
Resistance	What causes loss of power and voltage on the fence.
Stored Energy	Energy accumulated in the storage capacitor(s) in between output pulses. Also known as stored joules.
Watt	Unit of power. One watt is one joule per second.
Volt	Unit of electrical pressure. Sometimes it is stated as “kV” or kilovolts which is equal to 1,000 volts.
Voltage	Electrical pressure causing current to flow.

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