Tru-Test S150 Manuel De L'utilisateur page 9

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 offset 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.
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
Clearance
3 m (10')
4 m (13')
8 m (27')
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.
In electric animal fences intended for deterring birds from
roosting on buildings, no electric fence wire shall be connected
to the energizer earth electrode. A warning sign shall be fitted
to every point where persons may gain ready access to the
conductors.
Where an electric animal fence crosses a public pathway, a
non-electrified gate shall be incorporated in the electric animal
fence at that point or a crossing by means of stiles shall be
provided. At any such crossing, the adjacent electrified wires
shall carry warning signs.
Any part of an electric animal fence that is installed along a
public road or pathway shall be identified at frequent intervals
by warning signs securely fastened to the fence posts or firmly
clamped to the fence wires.
•
The size of the warning sign shall be at least
100x200 mm (4x8").
•
The background colour of both sides of the warning
sign shall be yellow. The inscription on the sign shall be
black and shall be either:
or the substance of "CAUTION: Electric fence".
•
The inscription shall be indelible, inscribed on both
sides of the warning sign and have a height of at least
25 mm (1").
Ensure that all mains-operated, ancillary equipment connected
to the electric animal fence circuit provides a degree of
isolation between the fence circuit and the supply mains
equivalent to that provided by the energizer.
Protection from the weather shall be provided for the ancillary
equipment unless this equipment is certified by the
manufacturer as being suitable for use outdoors, and is of a
type with a minimum degree of protection IPX4.
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