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Occupational Safety and Health Administration OSHA

Accident Report Detail

Accident: 170695522 - Burn - Electrical Fault In Circuit Breaker

Accident: 170695522 -- Report ID: 0950645 -- Event Date: 03/15/1993
InspectionOpen DateSICEstablishment Name
11221794807/23/19933842Mcghan Medical
A journeyman electrician responded to a no power trouble call by the shop operator of a drill press-mill. The electrician measured no voltage at the machine, which was connected by permanent wiring. He went to the panelboard for the circuit and noticed that the circuit breaker for this circuit was in the closed position. He reset the breaker by opening and closing it. He heard the usual click when he opened it; however, when he closed it, the circuit breaker failed and blew up in his face. The employee sustained burns to his face, apparently from the ensuing electric arc. Investigation revealed that the circuit breaker was faulty, probably due to deterioration from heating. Under load conditions, the breaker contacts would open.
Keywords: burn, e gi ii, electric arc, electrical, electrician, electrical work, circuit breaker, electrical fault, face
Employee # Inspection Age Sex Degree Nature Occupation
1 112217948 Non Hospitalized injury Burn/Scald(Heat) Electricians

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