OSHA Accident Investigation · Summary #14289334
BURN,ELECTRICAL,ELECTRIC SWITCH,LADDER,BUSBAR,E PTD,SUBSTATION,ELEC UTILITY WORK,ELECTRIC SHOCK,FALL
Event description
ELECTRIC SHOCK, BURNS, AND FALL - CONTACT WITH ENERGIZED BUS
Investigation abstract
A THREE-MAN, SUBSTATION MAINTENANCE CREW WAS REPLACING A WORN 15-KILOVOLT, 600-A R, TO REMOVE THE THIRD SWITCH. IN SO DOING, THE BACK OF HIS SHOULDERS CONTACTED THE 7200-VOLT TRANSFER BUS AND KNOCKED HIM TO THE GROUND, A DISTANCE OF ABOUT 17 FEET. HE SUFFERED SEVERE ELECTRICAL BURNS AND VARIOUS CONTUSIONS AND ABRASIONS FROM THE FALL. HE LATER DIED AS A RESULT OF HIS INJURIES. MPERE ELECTRIC DISCONNECT SWITCH. THEY HAD BEEN THOROUGHLY BRIEFED BY THEIR SUPE RVISOR ON THE CORRECT PROCEDURES TO ACCOMPLISH THE TASK. THE POWER HAD BEEN SWIT CHED FROM THE WORN DISCONNECT AREA TO THE TRANSFER BUS SO THEY COULD DO THE WORK SAFELY. GROUNDS HAD BEEN INSTALLED AND ALL LADDERS HAD BEEN SECURED. ONE OF THE EMPLOYEES HAD HIS LADDER BETWEEN THE FIRST TWO DISCONNECT SWITCHES. HE WAS TO D ISCONNECT THE LEADS FROM THESE TWO SWITCHES, THEN MOVE HIS LADDER TO HIS LEFT NE AR THE THIRD SWITCH, AND THEN CLIMB UP AND REMOVE THE LEADS. WHEN HE FINISHED TH E FIRST TWO DISCONNECTS, HE CLIMBED UP ON THE STEEL, INSTEAD OF MOVING HIS LADDE
Victim
-
#1 Fatality Age 23 M
- Nature of injury
- 10
- Part of body
- 19
- Event type
- 7
- Source
- 15
- Occupation code
- 577
- Human factor
- 1
- Environmental factor
- 18
- Task assigned
- 1
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