Horizont SECURA, Руководство пользователя

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17
FOR ELECTRIC ANIMAL FENCES
Electric animal fences and their ancillary equipment shall
be installed, operated and maintained in a manner that mi-
nimises 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 energisers or from independent fence circuits of
the same energiser.
CAUTION: Touching electrified fences, especially with the
head, neck or upper body, should be avoided. Do not climb
over the fence, through the fence or under the fence. To
pass through the fence, use a gate or other crossing facility.
For any two separate
electric animal fences, each sup-
plied from a separate energiser 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 non conductive material
or an isolated metal barrier.
Barbed wire or razor wire shall not be electrified by an
ener-
giser.
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 re-
garding earthing.
A distance of at least 10 m shall be maintained between
the energiser earth electrode and any other with the
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 con-
duit 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 whe-
rever possible. If such a crossing cannot be avoided it shall
be made underneath the power line and as nearly as possi-
ble 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 BB1.
TABLE BB 1 - MINIMUM CLEARANCES FROM
POWER LINES FOR ELECTRICAL ANIMAL FENCES
Power line voltage ( V ) Clearance ( m )
1000
3
> 1000 and 33000 4
> 33000 8
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 projec-
tion 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 ex-
ceeding 1000 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
electrical animal fences intended for deterring birds
from roosting on buildings no fence wire shall be ground-
ed if the fence wires are not connected to metal parts. If
one wire is connected with a metal part ( i.e. 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 elect-
rified wires shall carry warning signs.
Any part of an electric animal fence that is installed along
a public road or pathway shall be identified at frequent inter -
vals by warning signs securely fastened to the fence posts
or firmly clamped to the fence wires.
The size of the warning sign shall be at least 100 × 200 mm.
The background colour of both sides of the
warning sign shall be yellow. The inscription
on the sign shall be black and shall be either
– the symbol of Figure BB1, or
– the substance of
CAUTION: Electric
fence.
The inscription shall be indelible, inscribed on both sides of
the warning sign and have a height of at least 25 mm.
Ensure that all mains-operated, ancillary equipment con-
nected to the electric animal fence circuit provides a degree
of isolation between the fence circuit and the supply mains
equivalent to that provided by the energizer.
NOTE 1 Ancillary equipment that complies with the require-
ments relating to isolation between the fence circuit and the
supply mains in Clauses 14, 16 and 29 of the standard for
the
electric fence energiser
is considered to provide an
adequate level of isolation.
Protection from the weather shall be provided for the an-