OSHA Accident Investigation · Summary #14498521
E GI IV,ELECTRICAL,ELECTRICIAN,ELECTROCUTED,BUSBAR,ELECTRICAL WORK,INTERLOCK,LOCKOUT,ELECTRICAL CABINET
Event description
ELECTRIC SHOCK - DIRECT CONTACT WITH ENERGIZED PARTS
Investigation abstract
An electrician was using a voltage meter to take voltage readings on induction h ntly, the second employee did not know that this interlock had been bypassed. A second interlock switch, which was located on the back of the cabinet, failed, a llowing the circuit to remain energized. The second employee contacted one of th e three 600-volt, three-phase busbars inside the cabinet and was electrocuted. eating equipment. The equipment was enclosed in a steel cabinet on an elevated c atwalk located above the work floor of a quench converter unit. The employee had opened the steel cabinet and had bypassed the interlock switch located on the s ide of the equipment so that he could take voltage readings. The interlock switc h was designed to open the circuit when the cabinet door is opened. It is bypass ed by pulling it all the way out. When the cabinet door is opened, the relay swi tch pops out and signals the circuit breaker to open. A second employee opened t he back door of equipment cubicle without notifying the first employee. Conseque
Victim
-
#1 Fatality Age 39 M
- Nature of injury
- 10
- Part of body
- 12
- Event type
- 13
- Source
- 15
- Occupation code
- 575
- Human factor
- 9
- 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.