Accident Report Detail

Accident Summary Nr: 201037710 - Employee injured when transformer explodes

Accident Summary Nr: 201037710 -- Report ID: 0950635 -- Event Date: 06/17/2005
Inspection Nr	Date Opened	SIC	NAICS	Establishment Name
305480048	11/03/2005	1731	238210	Harel General Contractor

Abstract: On June 17, 2005, Employee #1 and a coworker were installing a new breaker in the electrical room at the private work site of a defense contractor. They were working on a Bulldog 277/480-volt subpanel, model UBL 4630, GO #111068, to change an existing 480-volt, 400-amp breaker to one with 600 amps. The new breaker had three screws that needed to be attached to the live bus bar because there were three phases. The first two screws had been attached already when Employee #1, standing in front of the sub-panel, probed the screw opening with his screwdriver. The transformer suddenly exploded, and the electrical flash burned Employee #1's left wrist and injured his eye. His coworker, who was standing behind him, was temporarily blinded but recovered shortly afterward.

Keywords: BURN, EYE, INSTALLING, ELECTRICAL, CONSTRUCTION, ELECTRICAL WORK, EXPLOSION, ELECTRICAL BOX, TRANSFORMER, WRIST

Accident Details
End Use		Project Type		Project Cost	Stories	Non-building Height	Fatality
Commercial building		Alteration or rehabilitation		$50,000 to $250,000	1

Employee Details
Employee #	Inspection Nr	Age	Sex	Degree of Injury	Nature of Injury	Occupation	Construction
1	305480048			Hospitalized injury	Burn/Scald(Heat)	Electricians	Distance of Fall: feet Worker Height Above Ground/Floor: feet Cause: Installing equipment (HVAC and other) Fatality Cause: Electric shock, other and unknown cause

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