OSHA Accident Investigation · Summary #14467146
OPERATORS INCORPORATED SUBSIDIARY OF TENNECO OIL C
BERCLAIR FIELD, TX—
Event description
ELECTRIC SHOCK - CONTACT WITH ENERGIZED MOTOR FRAME
Investigation abstract
AN EMPLOYEE WAS WORKING NEAR AN ELECTRIC-MOTOR-DRIVEN CENTRIFUGAL PUMP. THE MOTO VESTIGATED THE ARCING OCCURRING FROM THE FRAME TO THE CONCRETE SLAB, HE CAME IN CONTACT WITH THE ENERGIZED PARTS AND WAS ELECTROCUTED. R WAS SUPPLIED BY A THREE-PHASE, UNGROUNDED DELTA CIRCUIT. ONE PHASE OF A SET OF TRANSMISSION LINES WAS IN CONTACT WITH A BRACKET ON A UTLITY POLE. THE BRACKET WAS IN ELECTRICAL CONTACT WITH THE GROUND WIRE RUNNING THE ENTIRE LENGTH OF THE POLE. THE GROUNDING CONDUCTORS FROM BOTH THE CONTROL PANEL AND THE ELECTRIC MOTO R WERE BONDED TO THE GROUND WIRE, THEREBY ENERGIZING THE FRAME OF THE ELECTRIC M OTOR AND THE PUMP. THE FRAME SUPPORTING THE ELECTRIC MOTOR AND PUMP RESTED ON A 1-INCH-BY-40-INCH RUBBER STRIP USED TO ABSORB MOTOR VIBRATIONS. THIS ALSO ISOLAT ED THE METAL PARTS FROM GROUND POTENTIAL AT THE MOTOR SITE. WHEN THE EMPLOYEE IN
Victim
-
#1 Fatality Age 63 M
- Nature of injury
- 10
- Part of body
- 4
- Event type
- 13
- Source
- 15
- Occupation code
- 999
- Human factor
- 4
- Environmental factor
- 17
- 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.