OSHA Accident Investigation · Summary #14330385
ELEC PROTECT EQUIP,OVERHEAD POWER LINE,ELECTRICAL,POWER LINE WORKER,E PTD,ELEC UTILITY WORK,ELECTRIC SHOCK,FALL,FALL PROTECTION,AERIAL LIFT
Event description
ELECTRIC SHOCK & FALL - DIRECT CONTACT WITH OVERHEAD LINE
Investigation abstract
AN EMPLOYEE WAS WORKING FROM AN INSULATED AERIAL LIFT, CLEANING INSULATORS, BUSH UND, FIRE, AND SMOKE. THE EMPLOYEE IN THE LIFT THEN ATTEMPTED TO GET THE PHASE C ONDUCTOR OFF HIS BACK, WHERE IT HAD LANDED. THE OPERATOR SLUMPED FORWARD, WITH H IS ARMS HANGING LIMPLY OVER THE SIDE OF THE BUCKET. HE SLID OUT OF THE BUCKET AN D FELL 53 FEET TO THE GROUND, STRIKING HIS HEAD AGAINST THE AERIAL LIFT TRUCK'S FRONT FENDER ALONG THE WAY. THE EMPLOYEE DIED OF INJURIES HE SUSTAINED IN THE FA LL. INGS, AND LIGHTNING AND STRAIN ARRESTORS IN A SUBSTATION. HE HAD BEEN USING A 0. 75-INCH-DIAMETER, 13-FOOT-LONG FIBERGLASS WAND TO SPRAY THEM WITH GROUND CORN CO B ABRASIVE UNDER PRESSURE. THE EMPLOYEE IN THE LIFT SIGNALED THE GROUNDMAN THAT HE HAD FINISHED, AND THE GROUNDMAN WENT TO TURN OFF THE AIR PRESSURE ON THE COB MACHINE. THE GROUNDMAN LOOKED UP AND SAW THAT THE BUCKET WAS IN CONTACT WITH THE MIDDLE PHASE CONDUCTOR OF A 34.5-KILOVOLT OVERHEAD POWER LINE. THE EMPLOYEE IN THE LIFT MOVED THE BUCKET, CARRYING THE MIDDLE PHASE OVER TO ONE OF THE OUTSIDE PHASE CONDUCTORS. THIS CREATED AN ELECTRIC ARC, RESULTING IN A LOUD CRACKLING SO
Victim
-
#1 Fatality Age 47 M
- Nature of injury
- 6
- Part of body
- 13
- Event type
- 5
- Source
- 15
- Occupation code
- 577
- Human factor
- 1
- Environmental factor
- 8
- 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.