Planning your electric fencing
Planning for permanent electric fencing
Good installation is the key for successful permanent fences.
Solid corner posts must be firmly installed at all corners, changes of fence line direction and gateways. In-line posts can be a combination of plastic, steel or wooden posts.
Except where high visibility is required, for example horse fencing where tape and rope can be used, permanent fences are best constructed using 2.5 mm high tensile wire which is both extremely conductive and durable.
Always use good quality insulators on permanent fencing. This is particularly important on long fences with high powered energisers, as poor quality insulators may not withstand the high voltages and joules needed to effectively power a fence of many miles.
Always use mains energisers when possible and, if vegetation growth is likely, buy a higher powered model as it will help compensate for fence shorts.
Planning for temporary electric fencing
Temporary fences are moved regularly and can be constructed using battery or solar powered energisers, steel or plastic posts for single or multi wire fences and poly wire, poly tape, poly rope or nets and other lightweight components.
Typically these would be short fences of up to a few hundred metres in length to contain or exclude animals from a moving area such as strip grazing.Battery powered energisers are lightweight and easy for moving regularly but are generally most suitable for short fences of up to about 2.5 kms maximum length (depending on which wire conductors are used).
Planning for semi-permanent electric fencing
Semi-permanent fences are designed to stay in the same place for up to a year or two. They are best used for horses, outdoor pigs, poultry, or to protect a new crop planting from vermin.
For the best stability corner posts, gateways or sharp bends in the fence should ideally consist of wooden posts. These should be very firmly installed and suitable insulators used with softwood posts. In-line posts could be either plastic or steel and the conductors could be tape, rope, nets or stranded steel wire.
Energisers should be mains powered when there is a convenient power supply. Alternatively, 12-volt wetbattery energisers are a good choice. They are portable, although heavier than internal battery energisers, and they can operate longer fences more effectively than 6-volt and 9-volt energisers.