6
•
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 the table below.
Minimum clearances from power lines for electric animal fences
Power line Voltage V
Clearance m
Less than or equal to 1 000
3
Greater than 1 000 and less than or equal to 33 000
4
Greater than 33 000
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 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 connected to
an earth stake. 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.
•
Any
part of an electric animal fence that is installed along a public road or pathway shall be identified by electric fence warning
signs (G6020) at regular intervals that are securely fastened to the fence posts or firmly clamped to the fence wires.
•
The size of the warning sign shall be at least 100mm x 200mm.
•
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 substance of “CAUTION: Electric Fence” or,
-
the symbol shown:
•
The inscription shall be indelible, inscribed on both sides of the warning sign and have a height
of at least 25mm.
•
Ensure that all mains operated, ancillary equipment connected 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.
•
Protection from the weather shall be provided for the ancillary equipment unless this equipment is certified by the
manufacturer as being suitable for use outdoors, and is of a type with a minimum degree of protection IPX4.
This energizer complies with international safety regulations and is manufactured to international standards. Gallagher
reserves the right to make changes without notice to any product specification to improve reliability, function or design. E & OE.
The author thanks the International Electrotechnical Commission (IEC) for permission to reproduce Information from its International
Publication 60335-2-76 ed.2.2 (2013). Annex BB.1. All such extracts are copyright of IEC, Geneva, Switzerland. All rights reserved.
Further information on the IEC is available from www.iec.ch. IEC has no responsibility for the placement and context in which the
extracts and contents are reproduced by the author, nor is IEC in any way responsible for the other content or accuracy therein.
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