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Australian Safety Standards For Electric Fences – AS/NZS 60335.2.76:2003

Regulations Regarding Electric Fence Installations
The following information is taken from the Australian Standard AS/NZS 60335.2.76:2003 Amendment 2. Refer to AS/NZS 3014:2003 for the full details on
electric fencing.

  • Electric fences must be installed and operated so that they do not cause an electrical
    hazard to persons, animals or their surroundings.
  • Construction of electric fences that is likely to lead to entanglement of animals or
    persons is to be avoided.
  • An electric fence must not be supplied from two separate energisers or from
    independent fence circuits of the same energiser.
  • For any two separate electric fences that are supplied from separate independently
    timed energisers, the distance between the two wires must be at least 2.5 metres. If
    this gap is to be closer, it must be effected by means of an electrically non-conductive
    (insulating) material and/or an isolated metal barrier.
  • Barbed wire or razor wire must not be electrified by an energiser.
  • A non-electrified fence incorporating barbed or razor wire may be used to support
    one or more offset electrified wires on an electric fence. The supporting devices
    for the electrified wires must be constructed so as to ensure that these wires are
    positioned at a minimum distance of 150mm from the vertical plane of the nonelectrified wires. The barbed or razor wire must be earthed at regular intervals in
    accordance with Country Electronics earthing recommendations. (See chapter
    on earthing)
  • A distance of at least 10 metres must be maintained between the energiser’s
    earth electrode and any other earthing system connected parts – eg, mains power
    protective earth or telecommunications system earth.
  • Electric fence connecting leads located inside buildings must be effectively insulated
    from the earthed structural parts of the building – use suitable high voltage insulated
    cable. Important: always ensure metal parts of the building are effectively earthed.
  • Electric fence connecting leads located underground must be run in a suitable
    conduit of insulating material, or high voltage insulated cable be used. Care must
    be taken that the effects of animal hooves or vehicle wheels sinking into the ground
    cannot damage the connecting leads.
  • Electric fence connecting leads must not be installed in the same conduit as mains
    supply wiring, communications cables or data cables.
  • Crossing with overhead power lines must be avoided wherever possible. If such a crossing cannot be avoided, it must be made underneath the power line and near as possible right angles to it.
  • If electric fence connecting leads and wires are installed near an overhead power
    line, the clearances must not be less than indicated in the table below.
    Power Line Voltage – V Clearances – Metres
    Up to 1000V 3
    1000V – 33000V 4
    Above 33000V 8
  • If electric fence connecting leads and wires are installed near an overhead power line,
    their height above the ground must not exceed 3 metres. 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 metres for power lines operating at a voltage not exceeding 1000V
    – 15 metres for power lines operating at a voltage exceeding 1000V
  • Electric fences intended for deterring birds from roosting on buildings, no electric fence
    wire shall be connected to an earth electrode. A warning sign must be fitted to every
    point where a person or persons may gain access to the conductors.
  • Where an electric fence crosses a public pathway, a non-electrified gate must be
    incorporated into the electric fence at that point, or a crossing by means of stiles must be
    provided. At any such crossing, the adjacent electrified wires must carry warning signs.
  • Any part of an electric fence that is installed along a public road or pathway must be
    identified at frequent intervals by warning signs securely fastened to the fence posts
    or firmly clamped to the fence wires.
    The size of the warning sign must be at least 100mm x 200mm.

    • The background colour of both sides of the warning sign is to be yellow.
    • The inscription on the sign is to be black and shall be either the symbol shown below,
      or the words “WARNING – ELECTRIC FENCE”.
    • The lettering on the sign must be indelible, be on both sides of the sign and in letters
      not less than 25mm in height.
  • Ensure at all times that mains operated ancillary equipment
    connected to the electric fence circuit provides a degree
    of isolation between the fence circuit and the mains supply
    equivalent to that provided by the fence energiser.

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