This extremely handy single lamp tester indicates whether or not there is power on the line.
an electric fence work?
An electric fence system consists
of an energizer generating regular power impulses and one or several wires
transporting the power. These wires are insulated against the ground by using
plastic insulators on wooden posts or plastic stakes, which prevent the power
from being branched off into the ground.
When an animal comes into contact
with the wire a circuit is caused. I.e. the electric current flows through the
animal and soil, back to the energizer via the earth stake. Thus the animal
experiences an unpleasant (but harmless) electric shock and backs away.
it is not necessary for a fence to form a ‘loop’. The circuit is caused when it
is touched by the horse.
We recommend two levels of tape
where there is no boundary fence and at least one of these tapes 40mm wide, and
one level of tape if partitioning off an already secure area. Wooden posts with
insulators make the most secure fence but plastic stakes work cheaply and are
easier to erect. Plastic posts need to be in straight lines 9 meters apart and
supported at the corners. The best position for the energizer is near the gate,
gateways need for each level of tape. One gate handle, one continuous
insulator, two wooden posts and one ring insulator, if the gate is at the end
of the fence run. If the fence continues beyond the gateway you need another
continuous insulator. ‘Electric fence gates’ are made by cutting the width of
the gate from a length of tape and tying to the gate handle.
Most portable energizers are self
earthing and have batteries included, so you just clip the red wire to the
fence and you are started. Some can be supported by a larger rechargeable car
battery to prolong battery life.
energizers work best of all but need to be near a 240 volt power supply. The
energizer transforms the power down to 12 volts making it safe. This 12 volt
current is then connected to the poly tape fence by lead out cable this needs
to be either dug into the ground 9”-18” deep or clipped/cable tied to something
to keep it tidy. For this you need to measure the distance per meter from the
power source. It also needs an earth stake positioned in moist earth.