Hi I am not sure if this is the right forum. But I have a question that I need answering to satisfy my mothers curiosity. She has a fence round her garden and then an electric fence to keep the cows out. This works satisfactory except for the fact that she says that at night their seems to be a haze of flashing lights around the energiser, not there constantly, but happening periodicaly. The energiser is powered by battery. Can anyone please help me understand what is happening?? Thank you for any input.

Electric fences produce a pulse of electricty at periodic intervals. At the time of the pulse you may see arcing taking lace at the insulators, particularly iif the atmosphere is damp. In between pulses nothing will be seen. When I was about 16 I was walking in the countryside with some friends and we came across an electric fence. I gave the wire a quick brush with my finger and felt nothing. Telling the others that the fence was switched off I grabbed hold of the wire - very bad move as it gave me a really painful jolt. http://www.electricfencing.co.uk/Energisers.asp

Edited May 18, 201114 yr by TonyMcC

Thanks for your input will monitor for dampness when Hazy lights are observed and let you know, but grateful for the idea.

 

Electric fences produce a pulse of electricty at periodic intervals. At the time of the pulse you may see arcing taking lace at the insulators, particularly iif the atmosphere is damp. In between pulses nothing will be seen. When I was about 16 I was walking in the countryside with some friends and we came across an electric fence. I gave the wire a quick brush with my finger and felt nothing. Telling the others that the fence was switched off I grabbed hold of the wire - very bad move as it gave me a really painful jolt. http://www.electricf.../Energisers.asp

As a side issue , does anyone know how much of an electric shock a typical cow can take before it's a dead cow ?