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Laborer touching suspended cement bucket electrocuted when crane cable contacts 7200-volt powerline in North Carolina, March 1, 1990.

Morgantown, WV: U.S. Department of Health and Human Services, Public Health Service, Centers for Disease Control, National Institute for Occupational Safety and Health, FACE 90-29, 1990 Aug; :1-6
A 29 year old male laborer was electrocuted when the crane cable suspending a 1 yard concrete bucket he was touching contacted a 7200 volt powerline. His employer was a heavy construction company which was constructing a large addition to an existing wastewater treatment facility. Insulating hoses had been placed on a 7200 volt powerline at the site; however, the hoses had been removed so that slack in the line could be adjusted. The hoses were not replaced. After the last bucket of concrete had been poured, the driver of the cement truck cleaned the loading chute on his truck with a truck mounted water hose and began to pull away. As he did, the supervisor asked if the crew could use the hose to wash out the cement bucket suspended from the crane. The driver stopped the truck under the powerline. The crane operator, not realizing the truck had been moved, swung the boom to position the bucket behind the truck. The victim grasped the handle of the bucket's door and pushed down to open it, bringing the crane cable into contact with the powerline. It is recommended that employers ensure adherence to existing OSHA regulations concerning crane operations; that employers ensure that all crew members remain constantly aware of the clearance between a crane and any powerlines; that evaluation should be given to alternative methods of pouring concrete in proximity to overhead lines; and that daily jobsite surveys be undertaken to identify all hazards.
NIOSH-Author; Region-4; FACE-90-29; Accident-analysis; Electrical-hazards; Occupational-accidents; Electric-power-transmission-lines; Construction-workers; Construction-Search
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Field Studies; Fatality Assessment and Control Evaluation
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National Institute for Occupational Safety and Health
Page last reviewed: September 2, 2020
Content source: National Institute for Occupational Safety and Health Education and Information Division