An establishment should at least have a distance of 200 meters from a high-voltage power line. More specifically, according to the Occupational Safety and Health Administration (OSHA), the minimum distances from power lines are as follows:
For less than 200 to 350 volts – a distance of 20 feet (6.10 meters)
For 350 to 500 volts – a distance of 25 feet (7.62 meters)
For 750 to 1,000 volts – a distance of 45 feet (13.72 meters)