OSHA Accident Investigation · Summary #14201495
BURN,OVERHEAD POWER LINE,ELECTRICAL,E GI IA,ELECTRIC SHOCK,AERIAL LIFT
Event description
ELECTRIC SHOCK - CONTACT THROUGH AERIAL LIFT
Investigation abstract
SOME EMPLOYEES WERE USING A HYDRAULIC ARTICULATING BOOM TRUCK (AERIAL LIFT) WITH VED SECOND AND THIRD DEGREE BURNS ON HIS LEFT SIDE. NO TRAINING HAD BEEN GIVEN O N WORKING AROUND ELECTRIC LINES. THE BOOM TRUCK WAS A PAXTON MITCHELL SNOOPER, M ODEL BBC, SERIAL NUMBER 2710, MOUNTED ON AN INTERNATIONAL FLEET STAR 2010A TRUCK . DOUBLE BUCKETS TO INSPECT A BRIDGE. THIS TRUCK WAS NOT INSULATED FOR WORK AROUN D ENERGIZED LINES OR PARTS. THERE WERE ENERGIZED OVERHEAD POWER LINES NEXT TO TH IS BRIDGE (25 KILOVOLT PHASE TO PHASE, 14.4 KILOVOLT PHASE TO GROUND). THE BOOM CAME IN CONTACT WITH THE POWER LINE, ENERGIZING THE TRUCK. OUTRIGGERS WERE NOT I N USE, AND THE TRUCK WAS NOT GROUNDED. THE EMPLOYEES WERE WEARING WIRE ROPE SAFE TY LANYARDS. WHEN ONE EMPLOYEE STRUCK THE CONCRETE WITH HIS METAL HAMMER FOR A S OUND TEST, THE ELECTRIC CURRENT CAME THROUGH HIS SAFETY LANYARD AND SAFETY BELT, THROUGH HIS BODY, AND OUT HIS LEFT HAND, WHICH WAS HOLDING THE HAMMER. HE RECEI
Victim
-
#1 Hospitalized Age 33 M
- Nature of injury
- 10
- Part of body
- 19
- Event type
- 13
- Source
- 15
- Occupation code
- 216
- Human factor
- 1
- 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.