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Laborer electrocuted in North Carolina, June 8, 1988.

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 88-24, 1988 Sep; :1-5
The case of a 23 year old male laborer who was electrocuted when he contacted a 115 volt power source while adjusting the limit switches on an overhead door opener was examined. The victim was employed by a company that installed and maintained overhead doors. The company had no written safety policy or safety program. Training was provided on the job. The victim and his crew leader were sent to replace two damaged bottom panels of a 14 foot overhead door at a manufacturing facility. After replacing the panels the crew leader began to adjust the limit switches so that the door would operate properly. The voltage of the motor operator wiring panel was 115 volts. The voltage was stepped down to 24 volts in the lower portion of the door opener where the limit switches were located. A 25 foot aluminum extension ladder was used to reach the limit switches. The victim periodically raised and lowered the door by operating the control switch at ground level to test the adjustments. The crew leader left the room to get a different screwdriver at which time the victim climbed the ladder to made the final adjustments. Circumstances suggest that the victim contacted the 115 volt power source with his right arm. It is recommended that all workers in the vicinity of power equipment should be trained to recognize the hazard and employ effective control methods and safe work practices. A means to deenergize the door opener should be installed within reach of the opener.
NIOSH-Author; FACE-88-24; Region-4; Accident-analysis; Electrical-hazards; Work-practices; Safety-research; Maintenance-workers; Electrical-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