There is actually a huge controversy about those huge power lines that draw a line between the uninhabited regions of Norway from its residential areas. Many conspiracists and even curious individuals question the main purpose of these power lines where they still get no clear answer to the authorities. This sounds like, these power lines' true purpose is something that ordinary civilians must not know about.
However, troll hunters are always working 24/7 to prevent any creatures from getting close into the residential areas. Any of the creatures are immediately put to stop before they even reach the electrical fence.
You can watch the Troll Hunter movie on how the hunter put all of his effort in trying to stop the gigantic Dovregubben from crossing the boundary towards the human habitation.
Due to this reason, it is normal for conspiracists to derive their own theories. The most common speculation by many is that, those power lines are acting as electrical fences against giant troll creatures. They prevent these gigantic monsters from trespassing into the human residences. Thus, the true purpose of those power lines is for the safety of the people in Norway.
However, troll hunters are always working 24/7 to prevent any creatures from getting close into the residential areas. Any of the creatures are immediately put to stop before they even reach the electrical fence.
You can watch the Troll Hunter movie on how the hunter put all of his effort in trying to stop the gigantic Dovregubben from crossing the boundary towards the human habitation.