Accident Report Detail

Accident Summary Nr: 813923 - ELECTRIC SHOCK - GROUND FAULT IN CONVEYOR CIRCUIT

Accident Summary Nr: 813923 -- Report ID: 0552700 -- Event Date: 08/27/1993
Inspection Nr	Date Opened	SIC	NAICS	Establishment Name
107734386	08/27/1993	1731	0	Lee Davis Electric, Inc.

Abstract: A JOURNEYMAN ELECTRICIAN WAS TROUBLESHOOTING A 480-VOLT CONTROL CIRCUIT FOR A CONVEYOR SYSTEM. THE CONVEYOR WAS USED TO RECEIVE AND PILE POTATOES AT A WAREHOUSE. THE ELECTRICIAN HAD REPLACED THREE MALFUNCTIONING COMPONENTS AND HAD RECONNECTED THE PLUG ON THE CONVEYOR'S POWER SUPPLY CABLE. HE THEN WENT TO THE CONTROL STATION AT THE RECEIVING END OF THE CONVEYOR AND GRABBED THE HAND GRIP THAT WAS PROVIDED TO AID EMPLOYEES CLIMBING ONTO THE CONTROL PLATFORM. HE WAS ELECTROCUTED AS HE TOUCHED THE HAND GRIP. (THE CONVEYOR, WHICH WAS MOUNTED COMPLETELY ON RUBBER TIRES, WAS ISOLATED FROM GROUND.) INVESTIGATION REVEALED THAT A GREEN-COLORED CONDUCTOR HAD BEEN USED AS A 277-VOLT CIRCUIT CONDUCTOR. AN UNSKILLED EMPLOYEE HAD ERRONEOUSLY CONNECTED THIS CONDUCTOR TO TWO GREEN EQUIPMENT GROUNDING CONDUCTORS WITH A WIRE NUT AS HE WAS REPLACING A DAMAGED JUNCTION BOX. THE EQUIPMENT GROUNDING CONDUCTORS WERE CONNECTED TO THE FRAME OF THE CONVEYOR. WHEN THE CONVEYOR WAS ENERGIZED, THIS GROUND FAULT ALSO ENERGIZED THE CONVEYOR'S FRAME.

Keywords: ELECTRICAL, E GI VII, ELECTROCUTED, GROUND FAULT, CONVEYOR, EQUIPMENT GROUNDING, ELECTRIC CONDUCTOR

Employee Details
Employee #	Inspection Nr	Age	Sex	Degree of Injury	Nature of Injury	Occupation
1	107734386			Fatality	Electric Shock	Electricians

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