Gallagher S20 Instructions Manual - page 6

6 

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 

connec  ng 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 projec  on of the outermost conductors of the power line on the ground 

surface, for a distance of:-

-

2 m for power lines opera  ng at a nominal voltage not exceeding 1 000 V;

-

15 m for power lines opera  ng 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 sa  sfactory and safe performance.

•  In electric animal fences intended for deterring birds from roos  ng on buildings, no electric fence wire shall be connected to 

an earth stake. A warning sign shall be fi   ed to every point where persons may gain ready access to the conductors.

•  Fence wiring should be installed well away from any telephone or telegraph line or radio aerial.

•  Where an electric animal fence crosses a public pathway, a non-electrifi ed gate shall be incorporated in the electric animal 

fence at that point or a crossing by means of s  les shall be provided. At any such crossing, the adjacent electrifi ed wires 

shall carry warning signs.

• Any

part of an electric animal fence that is installed along a public road or pathway shall be iden  fi ed by electric fence 

warning signs (G6020) at regular intervals that are securely fastened to the fence posts or fi rmly 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 

inscrip  on on the sign shall be black and shall be either:

- the substance of “CAUTION: Electric Fence” or,

- the symbol shown:

• The 

inscrip  on 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 isola  on between the fence circuit and the supply mains equivalent to that provided by the 

energizer.

• Protec  on from the weather shall be provided for the ancillary equipment unless this equipment is cer  fi ed by the 

manufacturer as being suitable for use outdoors, and is of a type with a minimum degree of protec  on IPX4.

This energizer complies with interna  onal safety regula  ons and is manufactured to interna  onal standards.

Gallagher reserves the right to make changes without no  ce to any product specifi ca  on to improve reliability, func  on or 

design. E & OE.

The author thanks the Interna  onal Electrotechnical Commission (IEC) for permission to reproduce Informa  on from its 

Interna  onal Publica  on 60335-2-76 ed.2.0 (2002). All such extracts are copyright of IEC, Geneva, Switzerland. All rights reserved. 

Further informa  on 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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