Sven nice to see you around again.
As long as the fence is only in contact with the earth it would be very easy for this to liven it up to 120 volts and there would be no sparks.
Walk up to it and touch and get a good blast, the worst place to touch this fence would be right in the center of the span between two of the fence posts.
If you stand right at a fence post you will be closer to the same potential as the fence but not quite the same.
That is is you did not get a shock form one foot to the other as you walked up to the fence post.
Bob
