Safety Considerations; Definition Of Special Terms; Requirements For Electric Animal Fences - Tru-Test Unigizer 12000i Manual Del Usuario

Note:
Use more wires for smaller animals and wild animals. Politape
should be used when greater visibility is required (e.g. horses).
An example of a temporary fence is shown below.

Safety considerations

Definition of special terms

Energizer – An appliance that is intended to periodically deliver voltage
impulses to a fence connected to it.
Fence – A barrier for animals or for the purpose of security, comprising
one or more conductors such as metal wires, rods or rails.
Electric fence – A barrier which includes one or more electric
conductors, insulated from earth, to which electric pulses are applied by
an energizer.
Fence circuit – All conductive parts or components within an energizer
that are connected or are intended to be connected, galvanically, to the
output terminals.
Earth electrode
– Metal structure that is driven into the ground near an
energizer and connected electrically to the Fence earth terminal of the
energizer, and that is independent of other earthing arrangements.
Connecting lead
– An electric conductor, used to connect the energizer
to the electric fence or the earth electrode.
Electric animal fence – An electric fence used to contain animals within
or exclude animals from a particular area.
Electric security fence
– A fence used for security purposes which
comprises an electric fence and a physical barrier electrically isolated
from the electric fence.
Physical barrier
– A barrier not less than 1.5 m (5') high intended to
prevent inadvertent contact with the pulsed conductors of the electric
fence. Physical barriers are typically constructed from vertical sheeting,
rigid vertical bars, rigid mesh, rods or chainwire mesh.

Requirements for electric animal fences

Electric animal fences and their ancillary equipment shall be installed,
operated and maintained in a manner that minimises danger to
persons, animals or their surroundings.
Warning!
Avoid contacting electric fence wires especially with the
head, neck or torso. Do not climb over, through or under a multi-
wire electric fence. Use a gate or a specially designed crossing point.
This energizer is not intended for use by persons (including children)
with reduced physical, sensory or mental capabilities, or lack of
experience and knowledge, unless they have been given supervision or
instruction concerning use of the energizer by a person responsible for
their safety.
10
Children should be supervised to ensure that they do not play with the
energizer.
Electric animal fence constructions that are likely to lead to the
entanglement of animals or persons shall be avoided.
An electric animal fence shall not be supplied from two separate
energizers or from independent fence circuits of the same energizer.
For any two separate electric animal fences, each supplied from a
separate energizer independently timed, the distance between the wires
of the two electric animal fences shall be at least 2.5 m (8'). If this gap
is to be closed, this shall be effected by means of electrically non-
conductive material or an isolated metal barrier.
Barbed wire or razor wire shall not be electrified by an energizer.
A non-electrified fence incorporating barbed wire or razor wire may be
used to support one or more off-set electrified wires of an electric
animal fence. The supporting devices for the electrified wires shall be
constructed so as to ensure that these wires are positioned at a
minimum distance of 150 mm (6‛) from the vertical plane of the non-
electrified wires. The barbed wire and razor wire shall be earthed at
regular intervals.
Follow our recommendations regarding earthing. See
testing an earth system
on page 9.
A distance of at least 10 m (33') shall be maintained between the
energizer earth electrode and any other earthing system connected
parts such as the power supply system protective earth or the
telecommunication system earth.
Connecting leads that are run inside buildings shall be effectively
insulated from the earthed structural parts of the building. This may be
achieved by using insulated high voltage cable.
Connecting leads that are run underground shall be run in conduit of
insulating material or else insulated high voltage cable shall be used.
Care must be taken to avoid damage to the connecting leads due to the
effects of animal hooves or vehicle wheels sinking into the ground.
Connecting leads shall not be installed in the same conduit as the
mains supply wiring, communication cables or data cables.
Connecting leads and electric animal fence wires shall not cross above
overhead power or communication lines.
Crossings with overhead power lines shall be avoided wherever
possible. If such a crossing cannot be avoided it shall be made
underneath the power line and as nearly as possible at right angles to
it.
If connecting leads and electric animal fence wires are installed near an
overhead power line, the clearances shall not be less than those shown
in the table below.
Minimum clearances from power lines for electric animal fences
Power line voltage
1000 V
1000 V to 33,000 V
33,000 V
If connecting leads and electric animal fence wires are installed near an
overhead power line, their height above the ground shall not exceed 3
m (10'). This height applies to either side of the orthogonal projection
of the outermost conductors of the power line on the ground surface,
for a distance of:
2 m (6'6‛) for power lines operating at a nominal voltage not

exceeding 1000 V.
 15 m (50') for power lines operating at a nominal voltage
exceeding 1000 V.
Electric animal fences intended for deterring birds, household pet
containment or training animals such as cows need only be supplied
from low output energizers to obtain satisfactory and safe performance.
Installing and
Clearance
3 m (10')
4 m (13')
8 m (27')