OSHA Accident Investigation · Summary #14391072
ELECTRICAL,E GI VII,ELECTROCUTED,WELDER,ATTACHMENT PLUG,GROUND FAULT
Event description
ELECTRIC SHOCK - GROUND FAULT IN ELECTRIC WELDER
Investigation abstract
A MAINTENANCE WELDER AND HIS HELPER WERE WORKING ON AN OVERHEAD CONVEYOR. A WOOD EN PALLET HAD BEEN PLACED ON THE FORKS OF A FORKLIFT TRUCK, AND A SMALL, 240-VOL T AC-MOTOR-DRIVEN DC WELDER HAD BEEN PLACED ON THE PALLET. THE HELPER RAISED THE FORKLIFT TO LIFT THE MAINTENANCE WELDER INTO THE WORKING POSITION. THE MAINTENA NCE WELDER WAS ELECTROCUTED WHEN HE SIMULTANEOUSLY CONTACTED THE FRAME OF THE EL ECTRIC WELDER AND AN I-BEAM. THE EQUIPMENT GROUNDING CONDUCTOR IN THE TWIST-LOCK ATTACHMENT PLUG OF THE POWER SUPPLY CORD FOR THE ELECTRIC WELDER HAD COME LOOSE . IT APPEARED THAT THE LOOSE EQUIPMENT GROUNDING CONDUCTOR HAD CONTACTED THE CIR CUIT CONDUCTOR, ENERGIZING THE FRAME OF THE ELECTRIC WELDER.
Victim
-
#1 Fatality Age 24 M
- Nature of injury
- 10
- Part of body
- 4
- Event type
- 13
- Source
- 15
- Occupation code
- 519
- Human factor
- 9
- Environmental factor
- 13
- 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.