Good earth contacts are essential to a well-performing electric fence system. When an animal touches the fence line, it causes a connection between the fence and the earth and therefore receives a shock. Poor earthing is the largest cause of poor performance for electric fences.
At least one earth stake is required for each electric fence and where the soil is very dry or sandy, two or more should be used; or you should use the special 'Bentonite' mixture. For mains energisers, you should use a 2.0m earth stake and a 1.0m stake for battery energisers. To improve the performance of dry-cell energisers, you can also use the 0.5m earth stake and cable.
Insufficient earthing leads to low power on your electric fence line and is the most common electric fence fault.
|To check your electric fence's earth system, you'll need one of these electric fence testers:|
1. Use your fence tester to check there's a more than 3000v on the fence line, at least 100m away from the energiser and earth spikes.
2. At that same location, short out your electric fence and test again, checking that there's less than 1000v on the fence line... You can create a short by laying a temporary fence on the ground, or by leaning some iron posts against the fence lines.
3. Go to the energiser and earth spike and check the voltage on the earth spike. If the voltage is higher than 300v, your earthing is insufficient and you must install another earth spike/s... then repeat the test.