Electrical safety for center pivot irrigation systems
Abstract
"Mount a quarter mile of metal pipe on wheels. Connect several electric motors to pump water, to inject fertilizer or to move the system. Move the system continuously around a 130-acre field. Then pump water through it at a rate of several inches per hour and thoroughly soak everything within 50 feet of the system. You have just designed a potential situation for someone to be electrocuted. In fact, there were at least five electrocutions associated with irrigation equipment and not involving contact with overhead lines during the 1975 and 1976 irrigation seasons in the United States."--First page.
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