OSHA Accident Investigation · Summary #735035
BURN,CLOTHING,ELECTRIC ARC,E GI IV,ELECTRICAL,ELECTRICIAN,ELECTRICAL WORK,LOCKOUT,ELECTRICAL FAULT,SWITCHGEAR
Event description
BURN - FAULT IN MOTOR CONTROL CENTER
Investigation abstract
TWO EMPLOYEES WERE ASSIGNED TO REMOVE A 480-VOLT SPARE SWITCHGEAR CABINET IN A M THE BOX. ONE OF THEM REMOVED THE TOP RIGHT SCREW, AND THE OTHER EMPLOYEE REMOVE D THE BOTTOM LEFT SCREW. A FLASH OCCURRED AS A RESULT OF AN ELECTRIC ARC. THE EM PLOYEES RECEIVED BURNS ON THEIR HEADS, HANDS, AND ARMS. THEY WERE HOSPITALIZED F OR THEIR INJURIES. OTOR CONTROL CENTER. THE EMPLOYEES REMOVED THE FRONT COVER AND OPENED THE SWITCH ENCLOSURE DOOR. THEY VISUALLY VERIFIED THAT THERE WERE NO FUSES IN THE SWITCH, THAT THE SWITCH KNIFE BLOCKS WERE OPEN, AND THAT NO CONDUCTORS WERE CONNECTED TO THE BOTTOM OF THE SWITCH. ONE OF THE EMPLOYEES OPENED THE LOCKED ACCESS DOOR TO THE LOAD SIDE OF THE SWITCH AND VISUALLY VERIFIED THAT NOTHING WAS CONNECTED TO THE LOAD SIDE. HOWEVER, NO ELECTRICAL TEST INSTRUMENTS WERE USED TO TEST FOR TH E PRESENCE OF VOLTAGE WITHIN THE SWITCHGEAR ENCLOSURE. THE TWO EMPLOYEES TOOK SC REWDRIVERS (6 INCHES LONG WITH 0.25-INCH BLADES) TO REMOVE SCREWS IN THE BACK OF
Victims (2)
-
#1 Hospitalized Age 44 M
- Nature of injury
- 10
- Part of body
- 19
- Event type
- 13
- Source
- 15
- Occupation code
- 533
- Human factor
- 1
- Environmental factor
- 18
- Task assigned
- 2
-
#2 Hospitalized Age 40 M
- Nature of injury
- 10
- Part of body
- 19
- Event type
- 13
- Source
- 15
- Occupation code
- 533
- Human factor
- 1
- Environmental factor
- 18
- Task assigned
- 2
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.