An employee in the Midwest had just filled a bulk storage silo with cattle feed and was repositioning the metal overhead delivery boom to its storage position on the truck when the boom contacted an overhead 7,200-volt power line. The driver, who operated the boom from controls mounted on the truck, suffered severe electrical shock. Electric current traveled through the vehicle to the driver’s hand, finally exiting through the driver’s feet. The driver reported his hand becoming ‘locked’ to the…