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Occupational Safety and Health Administration OSHA

Accident Report Detail

Accident: 128268.015 - One Employee Is Killed, Two Are Injured In 4-Kv Arc Flash In

Accident: 128268.015 -- Report ID: 0522500 -- Event Date: 08/03/2020
InspectionOpen DateSICEstablishment Name
1486468.01508/04/2020Ohio Valley Electric Corporation
At 8:41 a.m. on August 3, 2020, two employees were working as electricians for a n electric power utility. They and Employee #3 were working at a coal-fired gene rating station. The two electricians, Employees #1 and #2, were troubleshooting the generating station's pulverizer and pulverizer fan number 6 breaker. The bre aker would not rack out from an energized 4,000-volt buss. The two electricians opened up the breaker cabinet door to access the breaker and to visually inspect the racking mechanism. The two employees unbolted and removed the front interph ase barrier cover. Employee #1 started to unbolt the horizontal steel barrier pl ate directly below the exposed primary side of the breaker in order to view the back portion of the lower racking mechanism. As he was doing this, an arc flash occurred. Employee #1 received arc flash burns to his upper body. Employee #2, l ocated behind Employee #1, also received burns. Employee #3, who responded to th e incident, received an injury to his leg. Employees #1 and #2 were hospitalized with serious burn injuries. Employee #1 died on August 26, 2020, as a result of the injuries he had received. Employee #2 was hospitalized with serious burns. Employee #3 was treated for a contusion to his left leg.
Keywords: burn, circuit breaker, contusion, e ptd, elec utility work, electric arc, electrical, electrical cabinet, electrical fault, electrician, energized, leg, lockout, ppe, torso
Employee # Inspection Age Sex Degree Nature Occupation
1 1486468.015 58 M Fatality Electricians
2 1486468.015 1 M Non Hospitalized injury Supervisors; electricians & power transm. install.
3 1486468.015 57 M Hospitalized injury Electricians

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