OSHA Accident Investigation · Summary #221377310

WERNER CO.

CRYSTAL LAKE, IL· 2021-05-21T00:00:00

Event: Arm, Burn, Construction, Electric Arc, Electric Arc Flash, Electric Shock, Electric Switch, Electrical, Electrical Burn, Electrical Cabinet, Electrical Fault, Electrical Wire, Electrical Work, Electrical panel, Electrician, Fire, Hand, Installing, Manufacturing, Metal, PPE Hazard Assessment, Shock, Wrist
NAICS: 333318
Inspection type: Referral
Activity number: #345330013
Employer profile: WERNER CO.
Summary number: 221377310
Report ID: 0521400
Project type: B
Construction end-use: H

Event description

Employee burns arm due to arc flash when installing circuits

Investigation abstract

At 4:30 p.m. on May 21, 2021, an employee working as an electrical maintenance technician for a fabricated metal products manufacturer was installing temporary electrical circuits. The employee was installing two new 480-volt circuits for portable air conditioning units in the Koch oven area. The specific work involved opening and working inside live 480 volt switch gear, terminating wires in the gear and installing new fuses in a disconnect. This was part of regularly assigned work duties for the employee. The switch gear faulted and caused an arc flash. No witnesses were working in the area at the time of the incident. The employee was hospitalized to treat burns to his left hand, wrist and lower arm.

Victim

#1 Hospitalized Age 40 M

Event type
13

Occupation code
213

Codes shown verbatim from OSHA's accident-investigation database. A human-readable decoder is coming in a future release once the accident_lookup2 dictionary is loaded.