What are those single strands of wire on the tops of fences?
Those, my friend, are electric strands, which are on most of the fence tops around the farm. And, yes, they do work as we have found out ourselves several times when not concentrating, much to our annoyance. They are used to stop the horses arguing over the fences and thus destroying them. They pack a punch, about 6,000 volts (horses are thick skinned) so beware, you have been warned. If you need to switch the fence off then the master switch is in the feed shed next to the indoor school. There are also some switches scattered around the fences to isolate smaller sections.