Now, none of this picture is to scale, and the 3 black rectangles are 10x20 barns.
Red is the woven wire livestock fencing. Turquoise is 6 strand barb wire. Those were all pre existing. The blue is 3 (behind the house) or 4 (in the field, which is the goat pic I already posted) strand electric. The purple is either 1 or 2 strands. The square area with the 2 small runs in it @ one barn, that will be our dirt arena. Pretty goo size, though a little smaller than standard. But it's flat, and will be fenced
The brown lines are wood. The large area is the goat area, and the smaller square is the duck/chicken yard
Hope that all made sense.
As for the sparking, I've not had that happen. Just as with any electric current, if metal is too close, it can jump, especially if the area is wet (rain or humidity). I've had no worry of fire. Been around poly wire fencing for about 4 years, and if you include poly tape, then about 7 or 8 years. We just started using the Powerfields in December, when we purchased this property. I had some of a different brand, but I like this better. It's easier to see (black/white, not pale orange/white) and it was cheaper too! But of course, still makes the goat run. A lot has to do with your fencer too though