The lines round our way aren't insulated at all. I've hit one before, thankfully I was holding a carbon fibre pole that had a fibreglass butt section so I wasn't incinerated.. Burned right through the pole though, in two places!
I didn't even think to look for them before that, it simply wasn't on my radar. Now I see them all the time, I can't believe they're just out there, unsheathed. If they were planning a network like that now surely they wouldn't get past planning permission? I could stand on my van and reach one set, they're that low.
I'm not gonna though. I've learned my lesson.