OSHA Accident Investigation · Summary #14500078

E GI II,ELEC PROTECT EQUIP,MAINTENANCE,ELECTRICAL,ELECTROCUTED,ELECTRONIC EQUIPMENT,ELECTRONIC TECHNICN,LOCKOUT,ELEC CIRC PART--MISC

1988-10-18T10:30:00

Event: E GI II,ELEC PROTECT EQUIP,MAINTENANCE,ELECTRICAL,ELECTROCUTED,ELECTRONIC EQUIPMENT,ELECTRONIC TECHNICN,LOCKOUT,ELEC CIRC PART--MISC
Linked inspection: No inspection record linked to this accident's victims.
Summary number: 14500078
Report ID: 523400

Event description

ELECTRIC SHOCK - DIRECT CONTACT WITH ENERGIZED PARTS

Investigation abstract

AN ELECTRONICS REPAIRER WAS PERFORMING MAINTENANCE ON A RADIO-FREQUENCY PREHEATE R, WHICH WAS BEING USED IN A THERMOSET MOLDING PROCESS. THE PREHEATER UNIT WAS S UPPLIED BY A 230-VOLT, THREE-PHASE CIRCUIT THAT HAD BEEN TRANSFORMED AND RECTIFI ED TO 3000/6000 VOLTS DC AT 200 MILLIAMPERES. THE INTERLOCKED SIDE PANELS OF THI S UNIT WERE REMOVED, AND THE SAFETY INTERLOCKS WERE BYPASSED SO THAT THE UNIT WO ULD REMAIN ENERGIZED. THE EMPLOYEE THEN REACHED INTO THE AREA BY THE POWER TUBE TO CHECK THE AIR FLOW AROUND THE TUBE. HE CONTACTED ENERGIZED PARTS AND RECEIVED AN ELECTRIC SHOCK. HE WENT INTO VENTRICULAR FIBRILLATION, AND PARAMEDICS WERE N OT ABLE TO REVIVE HIM. THE EMPLOYEE DIED OF ELECTROCUTION.

Victim

#1 Fatality Age 21 M

Nature of injury
10

Part of body
4

Event type
13

Source
15

Occupation code
533

Human factor
9

Environmental factor
13

Task assigned
1

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