OSHA Accident Investigation · Summary #981209
ELECTRICAL,E GI VII,ELECTROCUTED,GROUND FAULT,EQUIPMENT GROUNDING,ELEC EQUIPMENT--MISC
Event description
ELECTRIC SHOCK - GROUND FAULT IN PLASTIC MOLDING MACHINE
Investigation abstract
AN EMPLOYEE WAS INSTALLING A WATER HEATER (IMS, SERIAL NO. 523853616) ON A TOSHI MOLDING MACHINE. THE EMPLOYEE WAS ELECTROCUTED. HE HAD BURN MARKS ON HIS RIGHT H AND AND ON HIS LEGS ABOVE THE KNEES. BA MODEL ISE 170-9A PLASTIC INJECTOR MOLDING MACHINE (SERIAL NO. 557702). THE EX ISTING WATER HEATER APPARENTLY DEVELOPED A GROUND FAULT WHEN THE HEATING COIL FA ILED. THE WATER HEATER, WHICH WAS CONNECTED BY A FLEXIBLE CORD OFF A PIGTAIL FRO M THE MOLDING MACHINE, WAS WIRED CORRECTLY, EXCEPT THAT THE EQUIPMENT GROUNDING CONDUCTOR ON THE PIGTAIL HAD NOT BEEN CONNECTED. THE MOLDING MACHINE AND THE WAT ER HEATER WERE SUPPLIED BY A 3-PHASE, 480-VOLT, 100-AMPERE CIRCUIT. THE FUSES PR OTECTING THE CIRCUIT DID NOT OPEN ON THE GROUND FAULT. THE EMPLOYEE TOUCHED THE ENERGIZED PORTION OF THE WATER HEATER WHILE HE WAS IN CONTACT WITH THE GROUNDED
Victim
-
#1 Fatality Age 22 M
- Nature of injury
- 10
- Part of body
- 12
- Event type
- 13
- Source
- 15
- Occupation code
- 519
- Human factor
- 9
- Environmental factor
- 18
- Hazardous substance
- 8870
- Task assigned
- 1
Codes shown verbatim from OSHA's accident-investigation database. A human-readable decoder is coming in a future release once the accident_lookup2 dictionary is loaded.