OSHA Accident Investigation · Summary #14513881
BURN,VOLTAGE BACKFEED,ELECTRICAL,LOCKOUT,E PTD,SUBSTATION,ELEC UTILITY WORK,ELECTRIC CONDUCTOR,ELECTRIC SHOCK
Event description
ELECTRIC SHOCK AND BURNS - DIRECT CONTACT WITH LIVE PARTS
Investigation abstract
EMPLOYEES OF AN ELECTRICAL CONTRACTOR WERE PERFORMING WORK AS PART OF A CONTRACT H THE TIC-TRACER AND GOT NO READING. THEY PROCEEDED TO UNWRAP THE TAPE FROM THE THREE PHASES IN THE BACK OF THE PANEL. THE BARED CONDUCTORS ARCED, BURNING AND S HOCKING BOTH WORKERS. THE FEEDERS WERE ENERGIZED BY VOLTAGE BACKFEED FROM ANOTHE R FEEDER, UNTIL ITS BREAKER OPENED BECAUSE OF THE FAULT CURRENT. TO REPLACE A BURNED-OUT SWITCHGEAR IN A SUBSTATION ON THE ROOF OF AN AUTOMOTIVE MANUFACTURING PLANT. THE SWITCH HAD BEEN REPLACED ON FRIDAY, AND TWO WORKERS RE TURNED ON SUNDAY MORNING TO HOOK UP THE FEEDERS (13.2 KILOVOLT, 3 PHASE) TO THE BACK OF THE SWITCH PANEL. THEY CHECKED THE TWO SWITCH PANELS WITH AN INSTRUMENT (TIF #300HV TIC-TRACER) AND GOT A CURRENT READING. THE TWO WORKERS WENT WITH PLA NT MAINTENANCE PERSONNEL TO THE MAIN SUBSTATION, AND THE MAINTENANCE CREW RACKED OPEN TWO BREAKERS. EMPLOYEES #1 AND #2 VISIBLY CHECKED THIS, THEN PLACED THEIR LOCKS ON THEM AND RETURNED TO THE FIRST SUBSTATION. THEY RECHECKED THE LINES WIT
Victims (2)
-
#1 Hospitalized Age 41 M
- Nature of injury
- 5
- Part of body
- 5
- Event type
- 13
- Source
- 15
- Occupation code
- 577
- Human factor
- 1
- Environmental factor
- 18
- Task assigned
- 1
-
#2 Hospitalized Age 40 M
- Nature of injury
- 5
- Part of body
- 2
- Event type
- 13
- Source
- 15
- Occupation code
- 577
- Human factor
- 1
- Environmental factor
- 18
- 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.