Typical Installation - Tru-Test Unigizer 12000i Manual Del Usuario

Warning!
The energizer will reactivate following a power failure,
even if it was switched off by a remote control handset before the
power failure. The fence should be regarded as live at all times,
regardless of the energizer switch position or the remote control
status. If you are working on a section of fence, isolate the section
with a cut-out switch, or disconnect the energizer from its power
source.
Building a permanent electric fence
Components of an electric fence
An electric fence system comprises the following elements:
An energizer.

An earth system.
 This comprises a number of metal rods inserted
into the ground, which are connected to the Fence earth terminal
on the energizer.
Insulated underground cables.

insulated plastic, suitable for use underground or going through
walls. Used to connect the energizer to the earth and fence.
An insulated fence.
 Connected to the Fence output terminal of the
energizer. Fences can be made to a variety of designs (see below).
Other useful components that can be added:
Cut-out switches. Installed at regular intervals, these allow
you to isolate sections of the fence for repair.
Lightning diverter kit. Used to minimise the damage to your
energizer from lightning conducted down the fence line.

Typical installation

The animal receives a shock when it completes a circuit between the
fence and the earth system. The fence below has all live wires and
requires conductive soils. This type of fence is often referred to as an
'all-live' or 'earth-return' fence.
Alternative installation
For poor conductivity soils (dry or sandy), a 'fence-return' or 'earth-wire-
return' system is recommended. With this type of fence, the Fence earth
terminal is connected directly to at least one non-electrified fence wire
(earth wire). The animal gets maximum shock from touching a live wire
and an earth wire at the same time.
Bi-polar installation
In areas with poor earthing conditions, a 'bi-polar' installation may be
used to enhance the performance of the fence. With a bi-polar
8
Electric fence wire coated in
installation, all fence wires are insulated. Alternate fence wires are
interconnected to form one negatively charged circuit and one positively
charged circuit. The energizer passes half the output voltage to the
negatively charged wires and half the output voltage to the positively
charged wires. The animal gets a shock from touching a positive wire or
a negative wire OR, if touching both a positive and negative wire
simultaneously it gets a stronger shock.
To construct a bi-polar fence:
1 Interconnect fence wires so that there are two different circuits, as
shown in the diagram.
2 Connect the Fence half voltage terminal (yellow) to the earth
system using insulated cable.
3 Connect the Fence earth terminal (green) to the negative wires.
4 Connect the Fence full voltage terminal (red) to the positive wires.
Note:
The earth monitoring feature cannot be used with a bi-polar
installation.
Reducing the fence voltage output
In some areas, it may desirable to have a reduced fence voltage output,
for example where there is a risk of fire or where there is a chance that
people might come into contact with the electric fence (e.g. around a
house or next to a public roadway).
To reduce the fence voltage, use the Fence half voltage terminal
(yellow) instead of the Fence full voltage terminal to connect the
energizer to the fence. See the
When the Fence half voltage terminal (yellow) is used, the fence voltage
will not exceed 5 kV, however the output power remains the same.
Fence designs
Fences can be constructed to suit the type of livestock and materials
available. Discuss with your reseller which design best suits your needs.
Some suggested fence configurations are below.
Cattle and horses
10-15 m (33-49') spacing, posts only
15-20 m (49-65') spacing with droppers
Installation section
on page 3.