Scientifically Realistic Plot Help for Children's Book

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C4ndy
Hello,
I'm a children's author and I would really like some help with making one of my plot lines scientifically realistic (ish). I need a (very smart) teenage boy to escape either over or through an electric fence (the kind designed to keep prisoners in rather than cattle). Any help would be very much appreciated.
Many thanks
 
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Did a quick search. You basically need something to use as insulation like a thick blanket. The problem is that electric fences are also designed to set off an alarm if you mess with them. They are usually horizontal wires that "stretch" (spring loaded) and even if you do not get a shock and disturb the current, one way of setting off the alarm, if current jumps wires due to proximity/touching that will set off the alarm too.

I'd say having your protagonist (I am assuming it is the protagonist) playing with an electric fence in a kids book is a bad idea. Best advice is probably to have him find some way of taking out the power. No shocks, no alarms, and general confusion from a power outage is probably good strategy for an escape.
 
Within the scope of "realistic-ish", the protagonist could use some other objects, (wire, coathanger, insulated cutting apparatus, ect.) to lay a jumper in parallel with the electric fence at all points, so when he cuts through the current is not disturbed.

(Yes I know the problem with this..., but it's realistic-ish)