Some helpful electric fence terms
Watts: Units of electrical rate of doing work (similar
to how horsepower is a physical rate of
doing work). One horsepower can lift 1 pound
vertically at the rate of 550 feet per second, or
heat 1 pound of water at the rate of 0.7
degrees Fahrenheit (0.39 degrees C) per second.
46 watts equals 1 horsepower. Therefore, 746
watts can lift 1 pound at the rate of 550 feet
per second, or heat 1 pound of water at the
rate of 0.7 degrees Fahrenheit per second. A
flow rate of 1 amp at a pressure of 1 volt produces
Amps x volts = watts.
Joules: Units of electrical energy [similar to how
550 foot pounds (which is equal to 1 horsepower
for one second) is a specific amount of
physical energy]. 746 joules equals 550 foot
pounds. One joule is the amount of energy
required to do approximately 0.74 foot
pounds of work. One joule is the energy
required to produce 1 watt for 1 second.
Watts x seconds = joules.
Energy: The capacity or ability to complete a particular
amount of work (see joules). It is largely
the quantity of joules released by an energizer
during each pulse that determines the
energizer’s effective power.
3,600,000 joules = 1 kilowatt-hour.
Capacitor: An electrical component capable of
storing and releasing electrical energy and
approximating a reservoir, the volume of
which is stated in electrical units called farads
(micro farads). If 1 amp flows into a capacitor
for one second and this causes a rise in pressure
of 1 volt, then the volume of the capacitor
equals 1 farad.
Amps x seconds/volts rise = farads.