Were you intrigued to see if you went BANG if you touched the wire with your pole?
You wont be reaching that dorma with a 18ft mate, those phone lines are totally safe, I have one house I do with a line right across the middle of a upstairs window, I do the top half above the wire sometimes pole rests on wire, then move the pole underneath to get to the lower half of it, then I push the wire up with pole underneath to rinse window.
I clean 2 house next to each other & both have high windows like this with these wires in the way.. Always work around them as best as possible & I try not to knock them also trying not to get the clamps from the pole caught in them.. It can be tricky specially on a windy day.. Never had a problem though.. Good luck
