O'Briens 13/70 User Manual
Electric Fence
Energiser Manual
Model Number:
13/70
2
Contents
Page
1
IntroducƟ on
1 InstallaƟ on
5 OperaƟ ng InstrucƟ ons
7 Specifi caƟ ons
8
Safety RegulaƟ ons
Introduction
Thank you for purchasing an O’Briens energiser. O’Briens products are
engineered using the latest technology.
We trust that you will be well satisfi ed with your energiser. For safe and
reliable operation please follow the instructions given in this booklet carefully.
Installation
* Read the Safety Regulations at the back of this booklet.
* The energiser should be mounted vertically
only. (Do not use lying down
either on the ground or on another object).
* WARNING -Do not connect battery operated energisers to mains
operated equipment.
Fence Layout
Good planning will ensure a reliable electric fence system. There are a few
things to keep in mind when designing your fence layout:
* The main feeder wires should not be run parallel within 100m of phone or
communication lines irrespective of above or below ground.
* The electric fence wires should not run parallel and/or in close proximity to
power lines.
* Avoid making complete loops around paddocks. Terminate the wire with
an end insulator close to another live wire or gateway instead. This will
make fault fi nding easier.
* Install a cut out switch wherever the live wire splits into 2 or more
directions. This will also make fault fi nding easier.
* Put underground cable in poly pipe when running the cable under the
ground for protection. Never run live and earth wires in the same pipe.
* No two separately powered electric fences can be closer than 2.5m apart.
Ask your neighbour if you can power his side of the fence if they are close
together. It won’t cost you any more in electricity.
* All joins should be done with joint clamps for reliability.
3
Post Spacing
Post spacings can be further apart for electric fences. Up to 15m spacing
between posts may be done on level ground. Distances will need to be
reduced depending on the terrain.
Steel and wood posts require insulators for the live wires.
Wire Size & Spacing
Generally 2.5mm or 3mm galvanised wire will work well in most situations.
1.6mm wire is OK for small areas, but can be diffi cult to see. Many poly wires
and poly tapes are only suitable for short distances, so check the label on
these products.
Wire spacings vary depending on the animal to be contained and other
conditions. Live and earth wire spacings closer than 200mm apart will affect
the distance that the energiser is effective due to capacitance between the
wires. Wires should be strained to around 90kg (200lb). Multiple live wires and
earth wires should be linked together at the start and ends of the fence and at
gateways. Following are recommended spacings for different animals.
150mm
150mm
150mm
150mm
150mm
200mm
200mm
200mm
200mm
250mm
200mm
250mm
280mm
280mm
280mm
125mm
125mm
3 wire pig fence 3 wire cattle fence Sheep fence Boundary or feral
fence
Live
Earth
Live
Live
Earth
Live
Live
Earth
Live
Earth
Live
Earth
Live
Earth
Earth
Live
Live
4
Lightning Diverter
It is highly recommended that a good quality lightning diverter be installed, to
minimise energiser damage during lightning strikes.
Earthing is extremely important with the lightning diverter. The energy from the
lightning strike will follow the path of least resistance into the ground, so the
lightning diverter earth should be much better than the fence earth. This will
direct the lightning’s energy into this earth, rather than through the energiser
and into the fence earth. The lightning diverter earth should be separated from
the fence earth.
Up to 6 galvanized earth stakes should be placed a few metres apart, driven
1.5m into the ground, all electrically connected together, and then connected to
the lightning diverter earth terminal. The lightning diverter should be connected
between the energiser fence terminal lead out wire and the fence.
Gateways
Conduct the fence system under gateways, rather than overhead. Use double
insulated underground electric fence cable for both live and earth wires and
run inside poly pipe for protection. The cables should be buried 300mm
underneath the ground. Do not put both live and earth wires in the same pipe.
Turn the ends of the pipe down to keep water out.
Note: It is highly recommended that a cut out switch be used in the live wire
supply side entering the pipe so that it is easier to locate a fault should a short
occur under the ground.
Earthing
Good earthing of the electric fence system is critical to the performance of the
fence. A poor earth system won’t allow a shock to be properly delivered to the
animal, and may not deter the animal from going through the fence.
Things to keep in mind are:
Strip or Cell Grazing
Electric fences are ideal for selectively grazing pastures, in that they can be
moved in minutes. Strip grazing typically only uses 1 or 2 live wires and no
earth wire. The O’Brien’s 13/70 Solar Energiser is an ideal energiser to use
for strip grazing. The ground must be reasonably moist for the fence to work
effectively if there is no earth wire.
Earth stake 900mm into the ground
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