12
Power supply and connecting cables
• Cables that are laid in the ground (soil) must be protected by solid insulator pipes or use
insulated high-voltage cables designed for this purpose. Make sure that the cables will
not be damaged by, for example animal hooves or tractor wheels, which can sink into the
ground. Do not use standard electrical cables.
• Cables must not be placed in pipes together with other circuit, communication or data cables.
Supply and connecting leads and electric line of fence system:
• 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 are installed near an overhead power line, the clearances shall not be less than those
shown.
• If are installed near an overhead power line, their height above the ground shall not
exceed 3 m. This height applies to either side of the orthogonal projection of the outer
most conductors of the power line on the ground surface, for a distance of:
• 2 m for power lines operating at a nominal voltage not exceeding 1000 V
• 15 m for power lines operating at a nominal voltage exceeding 1000 V
• Being nearby telephone line or telephone cable, must be conducted at a distance of
minimum of 2 metres.
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 electrical animal fences intended for deterring birds from roosting on buildings no fence
wire shall be grounded if the fence wires are not connected to metal parts. If one wire is
connected with a metal part (ie a gutter) or a metal structure of the building these metal
parts must be grounded. 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.
Avoid direct contact with fencing, especially with head, neck or upper part of body. Do not
creep through the fencing or over it. For passing the fence system, use a gate or another
point in installation designed for this purpose.
Power line voltage
Clearance
≤ 1000 V
3 metres
> 1000 ≤ 33000 V
4 metres
> 33000 V
8 metres
Overvoltage protective equipment – lightning diverter
To prevent from damages caused by lightning, we recommend leading a circuit of fence
system near to building via overvoltage protective equipment – lightning diverter fastened
to outer masonry of the building by means of non-combustible materials before its
connecting to energizer. This applied also for combined energizers, if they are used
together with a network adapter.
