Here in northern NJ, we have JCP&L and they are a little lax on the tree trimming. That is one of the major reasons for power outages here. Either a squirrel jumps on the HV wire and blows a fuse, or a tree branch will touch it. The primary wire around here is a bare #6 cu wire running along the top wire from pole to pole. If they kept that wire covered and ran a messenger wire along with it, I bet it would cut out a lot of blown fuse call outs.
