1. The problem statement, all variables and given/known data We know that current will flow whenever there is a potential difference. Sometimes when there are problems with high voltage lines - workers must work on them 'live' (not shut down). How do the workers manage to work on the wires without getting electrocuted by the high voltage? 2. Relevant equations N/A 3. The attempt at a solution If anybody knows how workers are protected in real life, I'd be curious to know. I do know that if the workers had protective rubber gloves they would be okay to work on the wires because the gloves would insulate them against the flow of current. But, is there something else that high voltage workers use to not get 'zapped'?