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English
Important Informaon
be closed, this shall be effected by means of electrically non-conducve material or an isolated metal
barrier.
• Barbed wire or razor wire shall not be electrified by an energizer.
• A non-electrified fence incorporang barbed wire or razor wire may be used to support one or more
off-set electrified wires of an electric animal fence. The supporng devices for the electrified wires shall
be constructed so as to ensure that these wires are posioned at a minimum distance of 150 mm from
the vercal plane of the non-electrified wires. The barbed wire and razor wire shall be earthed at regular
intervals.
• Follow the energizer manufacturer’s recommendaons regarding earthing.
• A distance of at least 10m shall be maintained between the energizer earth electrode and any
other earthing systm connected parts such as the power supply system protecve earth or the
telecommunicaon system earth.
• Connecng leads that are run inside buildings shall be effecvely insulated from the earthed structural
parts of the building. This may be achieved by using high voltage cable.
• Connecng leads that are run underground shall be run in conduit of insulang material or else insulated
high voltage lead-out cable shall be used. Care must be taken to avoid damage to the connecng leads
due to the effects of animal hooves or tractor wheels sinking into the ground.
• Connecng leads shall not be installed in the same conduit as the mains supply wiring, communicaon
cables or data cables.
• Connecng leads and electric animal fence wires shall not cross above overhead power or
communicaon 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 connecng 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 following.
Minimum clearances from power lines for electric animal fences
Power line Voltage V Clearance m
Less than or equal to 1 000 3
Greater than 1 000 and less than or equal to 33 000 4
Greater than 33 000 8
• If connecng leads and electric animal fence wires are installed near an overhead power line, their height
above the ground shall not exceed 3 m
This height applies either side of the orthogonal projecon of the outermost conductors of the power
line on the ground surface, for a distance of:-
-2 m for power lines operang at a nominal voltage not exceeding 1 000 V;
-15 m for power lines operang at a nominal voltage exceeding 1 000 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 sasfactory and safe performance.
• In electric animal fences intended for deterring birds from roosng on buildings, no electric fence wire
shall be connected to the energizer earth electrode. A warning sign shall be fied 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 sles 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 idenfied by
electric fence warning signs (G6020) at regular intervals that are securely fastened to the fence posts or
firmly clamped to the fence wires.
• The size of the warning sign shall be at least 100mm x 200mm.
• The background colour of both sides of the warning sign shall be yellow. The
inscripon on the sign shall be black and shall be either:
-the substance of “CAUTION: Electric Fence” or,
-the symbol shown:
• The inscripon shall be indelible, inscribed on both sides of the warning sign
and have a height of at least 25mm.