GRAIN BIN CLEARANCE Whether you're purchasing a new grain bin or remodeling areas that contain existing ones, proximity to overhead power lines must be considered. Safe Clearance The National Electrical Safety Code requires 18.5 ft minimum vertical clearance from the highest point of the filling port to overhead high-voltage wires, and 55 ft minimum horizontal distance from the power line to the grain bin wall Changes to landscaping and drainage work can affect clearance heights of power lines, so check these measurements regularly. Filling Grain Bins High voltage power lines are not insulated, so it's important to maintain an adequate high-wire clearance when using a portable auger, conveyor or elevator to fill your grain bin. Moving Equipment near Grain Bins When moving equipment, be aware of nearby power lines. Remember to maintain a 10 ft clearance to ensure safety. If you are considering a plan for a new grain bin or reconstruction of an existing bin's site, please call and let us assist you in maintaining a safe environment.