Checking the power lines.

Today, PJ was asked to cut down some trees from under the power lines on a chaps property. But when he looked at it, he saw that the trees were about 3 metres above the lines, and the lines were running through the trees. Not a good situation. He rang the line company, and they said they had a helicopter out checking lines, so would come and have a look.
Before they went there, they were following all the lines that we could see from our house, before carrying on around the bay.
If power lines grow up through the trees, the cables get rubbed and can break, or cause a fire.