18
vice must be installed by a competent person. According
to experience mains controllers are more subject to light-
ning damage than battery controllers, so it is recommen-
ded to use a lightning arrestor kit (ref. 15498).
The installation is to be carried out according mounting
instructions. The system earth of the electric fence shall
be galvanically connected to the earthing system of the
lightning arrestor. Electric fences not being operated
shall be connected to earth, switch in position b.
The base (lower) distance between the two horns of the
spark gap (air gap) of the lightning arrestor should be
about 10 mm.
The earthing must be carried out at a damp place with an
earthing rod of ~1,5 m depth
PART 4:
INSTALLATION OF MAINS CONTROLLERS
In case of
outdoor installation
of the controller this shall
be done by a competent person in accordance with the
relevant wiring rules. Indoor installation can be carried
out by a plug in connection. In USA and Canada observe
the relevant marking on the controller concerning indoor
/ outdoor installation.
This symbol identifies battery-operated de-
vices which may not be connected to the mains
power supply.
Battery-operated devices which may be connected to
the mains power supply are labelled using the symbol
and the item no. on the mains adapter to be
used. When operating using the power adapter, non-
rechargeable batteries must be inserted unless shared
operation is explicitly allowed.
PART 5:
SYSTEM EARTH FOR MAINS / AKKUMULATOR
ANd dRY BATTERY OPERATEd FENCE
CONTROLLERS (page 3)
For a faultless operation and to obtain best possible out-
put
a good grounding is very important
. There fore the
grounding must be made at a rather moisty and over-
grown place.
see page 3 / fig. 2a, 2b, 2c.
System earth for dry battery energizers
Use the earth rod supplied by the manufacturer,
this
helps to make the energizer mobile
. Also with battery
energizers a deep earth rod increases the efficency of the
fence same as with
wet battery energizers
.
System earth for wet battery (12V) energizers
If the earth rod supplied by the manufacturer is used the
energizer remains mobile. An additional deep rod (mini-
mum 1 m) increases the efficiency same as with mains
energizers.
System earth for mains energizers.
One or more 1,5 m (minimum) earth rods (T profile or
round, distance appr. 2-3 m) or an additional 5m strip
type earth conductor, two spades deep in moist ground
to be attached. The distance between the system earth
and the protective and system earth of the supply net
work shall be at least 10 m.
Operation inside stables .
The earth terminal of electric fence energizers used in-
side stables (cow trainers system) may be connected
with the system earth of the building.
Voltage leading parts of fence installations inside stables
must be so installed that animals can move freely. It must
be ensured that animals cannot get in contact with
those parts that are not intended to get into touch in
normal use. All voltage leading parts must be sepera-
ted automatically from the voltage supply if an animal
becomes entangled with the parts. - use only appro-
ved cow trainers systems (e.g. stallmaster 10430)
At electric fence installations on buildings
(e.g. pi-
geon deterrence) no fence wire must be earthed ex-
cept the fence installation is mounted on a metal struc-
ture which itself is earthed.
In this case the earth terminal of the energizer must be
connected with the metal structure.
PART 6:
FENCE CONSTRUCTION
Gateinsolation
Parts of electric fences that are normally handled
ie gates must be isolated against high tension ie by
gate handles.
distances to other metal parts
(keep 2,5 m preferably)
Metal parts that are not part of the electric fence ie
bridge realings, animal troughs etc may not be in
contact with parts of the electric fence conducting
electric pulses.
PART 7:
FENCE WIRE, POSTS ANd INSULATORS
Depending from the kind of application of the electric
fences several fence leads are available:
Use only materials and systems how they are recom-
mended by the manufacturer, for the height of fence
leads see page 3. The possible length of the fence
depends upon the conductivity of the leads and the
power (Joules) of the energizers.
Wires
must have a good conductivity and breaking strength
and they must be weather resistant. A good visibility
can enhance the efficiency. Barbed wire shall not be
used for electric fences. Zink galvanized wires with
a diameter of 1,5 - 2,5 mm are used for permanent
fencing. Temporary fences are realised preferably
with tinsel wires or plastic poly wires or tapes. The
conductivity of poly wires and tapes can be different
but cannot be assessed from outside.
High quality poly wires or tapes have a typical re-
sistance of less than 1 Ohm/m, low quality can re-
ach 10 Ohm/m, resulting in making even powerful
controllers ineffective already with medium fence
lengths. The single conductors of the poly wires or
tapes must be in contact in order to avoid parts of the
fence loosing voltage.
Important:
pay attention to the technical data of the
manufacturer and prefer horizont approved material
case of polywires and tapes.