Not always,that fence has one hand written sign.ah I have a boat yard that has one on my route,I can photo that.But there is always clear signs so people are warned. Like you see big signs saying warning 50,000 volts. Do not come near, do not touch and so on. So they have covered themselves if anything happens as there was warning.
50000 volts,lol lined In without the pole pig.they hit that ,ain't clearing thar body until the power is off.