Abstract: Some employees were delivering roofing material to a house under construction. Their flatbed truck was parked uphill on a roadway near a 12-kilovolt overhead power line. The employees had finished unloading the material onto the flat roof of the house, and one of the employees began to rotate the truck-mounted conveyor from the roof to cradle it onto the back of the truck. The employee raised the conveyor and rotated it past the cradle. The conveyor contacted the power line, electrocuting the employee. A second employee, who was reaching for something in the back of the truck, received an electric shock. He was hospitalized for his injuries.