Done a fair bit of power line inspection in UK, not the big lines, the maze of lines that end up at farms etc. Used a B206, frightenned the hell out of horses and livestock etc etc, wanted to do it at 500ft agl with good stabalised camera system, but electricity company would never pay the extra. Felt the whole project was very damaging to the "fly neighbourly" campaign and gave the public a bad image of the professional helicopter industry. In remote area's I have no problem with low level power line inspections, but some of the work I was doing was just outside London! I know that a good camera would have done the job, plus the electricity company could have had a video back -up of the work carried out.