Horizont ABN30GREEN Manual De Instrucciones página 19

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 (minimum
1 m) increases the efficiency same as with mains energi-
zers.
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
inside stables (cow trainers system) may be con-
nected 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 seperated automatically
from the voltage supply if an animal becomes entangled
with the parts. - use only approved cow trainers systems
(e.g. stallmaster 10430)
At electric fence installations on buildings (e.g. pigeon de-
terrence) no fence wire must be earthed except the fence ins-
tallation is mounted on a metal structure which itself is earthed.
In this case the earth terminal of the energizer must be con-
nected 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 elec-
tric fences several
Use only materials and systems how they are recommen-
ded 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 ener-
gizers.
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
fence leads are available:
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 resistance of
less than 1 Ohm/m, low quality can reach 10 Ohm/m, resul-
ting 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 ma-
nufacturer and prefer horizont approved material case of
polywires and tapes.
Connection cable fence
Special fence connection clamps are recommended in case
of polywire or tape.
Fence posts
All materials can be used for fence posts in connection with
adequate insulators. Especially suitable are wooden and
plastic posts. Metalposts can very easily short the fence vol-
tage to ground in case of brittled insulators and high peak
voltages. The distance between the posts can vary between
4 - 10 m, depending on the wire weight. Parts of the elec-
tric fence intended to be handled must be insulated, e.g.
gate handle. Fence wires and connecting leads shall not
be in contact with metal parts not belonging to the electric
fence such as railings of a bridge. Fence wires and connec-
ting leads shall not be fixed to poles used for low-voltage,
high-voltage, telephone or telegraph lines. When installing
electric fences the national safety regulations must be re-
spected.
How to avoid radio interference
Faulty connections on the fence can cause radio and TV
interferences. Knot connections and wires loosely put
onto each other are critical as the supplied voltage causes
sparks. This may occur especially with poly wire and po-
lytape. The horizont tape connector is an adequate mean
to avoid sparks. Control: walk along the fence with a radio
- faulty connections cause crack sounds. In the darkness
sparks become visible.
Fence installation
Fence wires and connecting leads shall be adequately sup-
ported on insulators of electrially and mechanically reliable
material. Insulators must be placed in such a manner that
fence wires and connecting leads maintain a distance of at
least 3 cm to structural parts, pipes, wires and comparable
parts. Connecting leads to electric fences for domestic and
wild animals shall not be laid into or through buildings or
places where there is a risk of fire (barns, stables etc.).
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