Instructions for installation and connection of electric fences
General
Electric animal fences and their ancillary equipment shall be installed, operated and maintained in a manner that
minimizes danger to persons, animals or their surroundings.
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.
Installation instructions
Avoid contacting electric fence wires especially with the head, neck or torso. Do not climb over, through or under
an electric fence. Use a gate or a specially designed crossing point.
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. If this gap is to be closed, this
shall be effected by means of electrically nonconductive 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 from the vertical plane of the
non-electrified wires. The barbed wire and razor wire shall be earthed at regular intervals.
Follow the energizer manufacturer's recommendations regarding earthing.
A distance of at least 10 m 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 tractor 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 Table 1.
Table 1 – Minimum clearances from power lines for electric animal fences
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
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 1 000 V;
15 m for power lines operating 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 satisfactory and safe performance.
In electric animal fences intended for deterring birds from roosting on buildings, no electric fence wire shall be
Power line voltage
V
≤ 1 000
> 1 000 and ≤ 33 000
> 33 000
Clearance
m
3
4
8
EN
34