Accident Report Detail

Accident Summary Nr: 170272066 - BURN - ELECTRICAL FAULT IN BUSWAY SWITCH

Accident Summary Nr: 170272066 -- Report ID: 0112000 -- Event Date: 01/01/1990
Inspection Nr	Date Opened	SIC	NAICS	Establishment Name
300081346	03/01/2000	1731	0	R.G. Bigelow Electrical Company, Inc.

Abstract: An electrician was installing a busway disconnect switch onto an energized 480-volt three-phase busway. Although the supply side of the switch was energized, the secondary side was not because he had not yet inserted the fuses. The electrician was using a metal Allen wrench to tighten the load-side conductor lugs. The door to the busway switch enclosure was open and the operating handle was in the closed position, which would energize parts such as the line-side fuse-holders. He had connected the load-side phase conductors and was tightening the lug for the neutral conductor. The employee apparently left the Allen wrench in the lug. As he turned around to adjust the position of the aerial lift from which he was working, the Allen wrench apparently fell out of the lug and caused an electrical fault. The ensuing electric arc burned the employee. He was hospitalized for his injuries.

Keywords: BURN, ELECTRIC ARC, E GI IV, ELECTRICAL, ELECTRIC SWITCH, ELECTRICIAN, ELECTRICAL WORK, LOCKOUT, ELECTRICAL FAULT

Accident Details
End Use		Project Type		Project Cost	Stories	Non-building Height	Fatality
Commercial building		Alteration or rehabilitation			1

Employee Details
Employee #	Inspection Nr	Age	Sex	Degree of Injury	Nature of Injury	Occupation	Construction
1	300081346			Hospitalized injury	Burn/Scald(Heat)	Electricians	Distance of Fall: feet Worker Height Above Ground/Floor: feet Cause: Installing equipment (HVAC and other) Fatality Cause: Fire/explosion

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