24
Power line voltage
Clearance
≤ 1000 V
3 metres
> 1000 ≤ 33000 V
4 metres
> 33000 V
8 metres
•
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 outermost
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.
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.
Generally, we recommend connecting network powered electric fence system only to
such supply networks that are protected with earth-leakage circuit breaker with maximum
actuating current of 30 mA. In addition to that, correct installation of energizer with auxiliary
discharger and choking coil is necessary, as described within these instructions. It is suitable
to disconnect network supplied electric fence system from network as well as from fencing
(if possible) during storm.
Overvoltage caused by storm can cause insulation of
electric fence system. In such a case, network voltage
can get into electric fence system, and serious danger to
people or animals can occur.
