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Electrical technician electrocuted after contacting a 800-volt conductor in South Carolina, September 19, 1991.

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 92-07, 1992 Mar; :1-7
The case of a 30 year old male electrical technician who was electrocuted when he inadvertently contacted an energized conductor inside a control panel cabinet was investigated. The employer was a steel alloy rolling mill that had a written safety policy and comprehensive safety program. The victim and the service representative from a company that manufactured a piece of voltage regulating equipment had met to discuss how the equipment was to be used to control voltage surges and regulate voltages to different pieces of equipment throughout the facility. The victim left the area to get the service manual for the equipment. The representative opened the panel cover on the system's control cabinet, preparing to trace out the low voltage wires in question, but he did not deenergize the system. The victim returned, knelt in front of the opened control cabinet and positioned his upper body inside the 800 volt resistor compartment. He began tugging on the wires inside the compartment so that the service representative could identify them from above. The victim made a gurgling noise and shook as he contacted the energized conductor inside the cabinet. The service representative received a shock when he knocked the victim away from the conductor. It was recommended that the safe job procedures governing access into electrical control cabinets be reviewed; that the importance of following safe job procedures related to deenergizing electrical systems be followed; that voltage regulating equipment be wired with color coded wire; and that employees be trained in cardiopulmonary resuscitation techniques.
NIOSH-Author; Region-4; FACE-92-07; Accident-analysis; Work-practices; Electrical-hazards; Electrical-shock; Electrical-workers
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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