Many a lineman has died from this "static" voltage on high-lines. Conductors that are run parallel ( for miles ) with energized circuits on the same poles or towers or even close-by structures build-up a lethal voltage.
These conductors must be grounded, near-by the person working on those lines.
Grounding the conductors being 'worked on' a mile or so away from the work site can have lethal voltages.
