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Occupational Safety and Health Administration OSHA

Accident Report Detail

Accident: 10792.015 - Employee Is Electrocuted While Installing Transformer To Var

Accident: 10792.015 -- Report ID: 0521700 -- Event Date: 03/15/2012
InspectionOpen DateSICEstablishment Name
281477.01503/15/2012K & E Electric Inc
At 2:00 a.m. on March 15, 2012, an employee and a coworker were retrofitting the HVAC system with a new variable air volume (VAV) control box with electrical co ntrols. The employee accessed the air unit that was located above a drop down c eiling. The employee was working alone on the 25th floor of the building atop of a frame ladder. While installing VAV boxes to the HVAC unit, the employee follo wed the protocol in place in which the local electrical interrupter (switch) loc ated on the HVAC unit was used to de-energize the unit. The switch shut off powe r to the unit, however, there was a 277 volt line coming into the switch. The e mployee contacted the live electrical parts and was electrocuted. He fell from h is ladder onto the ground of the 25th floor. At 2:05 a.m., the coworker returne d to the 25th floor to find the employee lying on the floor next to the ladder a nd unresponsive. The coworker called the emergency medical services and the empl oyee was transported to a local hospital. The employee was killed by an electri c shock.
Keywords: electric shock, electrical, electrical box, electrician, electrocuted
End Use Proj Type Proj Cost Stories NonBldgHt Fatality
Commercial building Alteration or rehabilitation   40 X
Employee # Inspection Age Sex Degree Nature Occupation Construction
1 281477.015 47 M Fatality Electricians FallDist:
Cause: Installing equipment (HVAC and other)

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