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Occupational Safety and Health Administration OSHA

Accident Report Detail

Accident: 141557.015 - Employee Is Killed From Arc Flash

Accident: 141557.015 -- Report ID: 0950615 -- Event Date: 11/26/2021
InspectionOpen DateSICEstablishment Name
1566326.01511/29/2021Uss-Upi, Llc

At 11:15 a.m. on November 26, 2021, Employee #1 was repairing a Power Corp Type PIF Load Break Interrupter Switch (employer's designation: disconnect switch 103 in 13.8kV Switchgear #1) located in the 13.8kV Switchgear Room that serves Stan d 5 of the Pickle Line Tandem Cold Mill (PLTCM). A problem with disconnect swit ch 103 was reported when it was closed on November 21, 2021 to provide power to Stand 5 of the PLTCM during start up preparations for the week's production run. A metallic noise, indicating loose parts inside the switch, was heard by the el ectrician who closed the switch. An entry was made in the computer log of the PL TCM, documenting the mechanical issue, and Employee #1, the Field Service Electr ical and Crane Crew Supervisor - Reliability Division, was notified. At 11:15a m on November 26, 2021, the smoke alarm actuated in the PLTCM area and the emplo yer's on-site emergency personnel responded to investigate. Upon entering the 13 .8kV Switchgear Room, they observed smoke in the room and found Employee #1 on t he floor in front of Section 103 of 13.8kV Switchgear #1. His clothing was on fi re, and he was suffering from burns and other trauma resulting from an arc flash inside the switchgear cubical. Employee #1 had apparently reached into the enc losure and contacted the live line-side terminals of the switch resulting in an arc flash that resulted in burns and other trauma. He died on November 29, 2021. Employee #1 was not wearing the proper PPE for work on live electrical equipme nt. Employee#1 was working alone, without an observer or standby person present. The required steps for deenergizing and grounding the equipment for employee pr otection, when working in high voltage equipment, had not been performed.

Keywords: burn, circuit breaker, electric arc, electric arc flash, electric switch, equipment grounding, high voltage, lockout, lockout/tagout, machine guarding, protective clothing, protective grounding, work rules
Accident Details
End Use Proj Type Proj Cost Stories NonBldgHt Fatality
Manufacturing plant Maintenance or repair   15 X

Employee Details
Employee # Inspection Age Sex Degree Nature Occupation Construction
1 1566326.015 57 M Fatality Supervisors; electricians & power transm. install. FallDist:
Cause: Temporary work (buildings, facilities)

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