OSHA Accident Investigation · Summary #801837
HILL ELECTRIC CO., INC.
BARNWELL, SC·
Event description
ELECTRIC SHOCK - MISWIRED ATTACHMENT PLUG
Investigation abstract
AN ELECTRICIAN HAD REPLACED THE ATTACHMENT PLUG FOR THE POWER SUPPLY CORD ON A M CONNECTED TO THE CHASSIS OF THE MACHINE AND THAT THE BLUE AND "BLACK" CONDUCTOR S WERE THE CURRENT CARRYING CONDUCTORS. THUS, THE ELECTRICIAN HAD CONNECTED THE EQUIPMENT GROUNDING CONDUCTOR DIRECTLY TO AN ENERGIZED LINE. ILLER DIAL ARC 250 AC/DC WELDER. THE CORD CONTAINED ONLY THREE CONDUCTORS: ONE B LUE AND ONE ORANGE CONDUCTOR, WHICH HE CONNECTED TO THE TWO CURRENT CARRYING PIN S ON THE PLUG, AND ONE "BARE" ONE, WHICH HE CONNECTED TO THE GROUNDING PIN. SHOR TLY, AFTER THE REPAIR, A WELDER TURNED ON THE WELDING MACHINE TO PERFORM SOME WO RK. WHEN THE WELDER ATTEMPTED TO ATTACH THE GROUND LEAD, HE RECEIVED AN ELECTRIC SHOCK. HE CALLED THE ELECTRICIAN TO TURN THE MACHINE OFF. THE ELECTRICIAN WAS E LECTROCUTED WHEN HE CONTACTED THE FRAME OF THE WELDING MACHINE. AN INSPECTION OF THE INTERNAL WIRING OF THE WELDING MACHINE SHOWED THAT THE ORANGE CONDUCTOR WAS
Victims (2)
-
#1 Fatality Age 38 M
- Nature of injury
- 10
- Part of body
- 4
- Event type
- 13
- Source
- 15
- Occupation code
- 575
- Human factor
- 4
- Environmental factor
- 18
- Task assigned
- 2
-
#981 Degree 0 Age 0
- Nature of injury
- 0
- Part of body
- 0
- Event type
- 0
- Source
- 0
- Occupation code
- 0
- Human factor
- 0
- Environmental factor
- 0
- Task assigned
- 0
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.