It's common (for me) to hear that a HV power line can kill a person without touching it "if they entered its field." I'm not convinced by this reason and I think it quite naive and that it doesn't clarify anything.
Warning: Video shows people dying.
Video with information about the accident(longer than the YouTube version)
Here's a video of some workers killed by HV but it's not clear if the scaffold touched the line or just "entered the field of the lines."