Installing an electric fence for horses

What do you need?

Before you start, make sure you have the right components together. For an average pasture of 40 by 40 metres you will need roughly 160 metres of fencing. For horses, choose at least a tape that is 40 mm wide or a rope of 6 mm — thin wire provides too little visibility and increases the risk of injuries. You will also need: an energiser (at least 3 joules output power for larger plots), sufficient earth stakes (at least 3 stakes of 1 metre), insulators suited to your posts, and a voltage tester to check the installation afterwards.

Choose the right energiser

The energiser is the engine of your system. For a single paddock of 20 by 20 metres, a simple mains-powered energiser of 1–2 joules is sufficient. If you have multiple plots or vegetation growing along the line, choose at least 5 joules. Battery or solar-powered energisers are practical in locations without mains power, but check the charge status every week. Store the purchase date and model in the horse profile in EquiSight, so you know when the energiser is due for replacement.

Earthing: the most common mistake

Poor earthing is the cause of 80% of problems with electric fences. Use at least three earth stakes of 1 metre each, driven in at 3-metre intervals from one another. Connect them with dedicated earthing cable (green, at least 6 mm²). Avoid earthing via water pipes or other metal structures — this is dangerous and produces an unreliable current. Check the earthing every season: dry soil in summer significantly weakens conductivity.

Running the lines: height and number

• For adult horses, use at least 2 lines: the lower one at 50–60 cm, the upper one at 90–110 cm height.
• Add a third line at 30 cm height for foals or ponies.
• Tension the tape tightly enough to prevent sagging, but not so tight that it breaks under wind pressure.
• Use corner insulators at every bend to minimise voltage loss.
• Connect long runs with joining clamps at intervals to ensure continuous contact.

Checking and testing the voltage

After installation, measure the voltage at the furthest point from the energiser. A properly functioning system should still have at least 3,000 volts at that point. Anything below 2,000 volts is insufficient for horses. Use a digital voltage tester — this gives an exact reading, unlike a simple indicator light. Set a recurring reminder in EquiSight every two weeks to check the voltage. Record the readings in the horse profile; this way you can quickly spot a downward trend that indicates a fault.

Troubleshooting common problems

• Voltage drops: check whether vegetation is touching the line and cut it back immediately.
• Energiser gives no audible click: check the fuse or battery.
• Horse no longer respects the fence: measure the voltage — repeated brief contacts can be enough to desensitise the animal.
• Joining clamps are rusting: replace them annually with stainless steel ones.
• Insulators are broken: inspect all insulators after a storm or frost.

Safety and acclimatising your horse

Always introduce a horse that has never encountered an electric fence during a calm moment. Lead it at walking pace alongside the line so it experiences the pulse without panicking. Horses that take fright and take a line with them become confused and can react dangerously. Let EquiCoach help you draw up an acclimatisation plan based on your horse's character and age — this gives you a targeted approach and avoids unnecessary stress.