OSHA Accident Investigation · Summary #606889

BURN,CLOTHING,ELECTRICAL,PANELBOARD,ELECTRICAL WORK,LOCKOUT,E C,CIRCUIT BREAKER,ELECTRICAL FAULT,BLIND REACHING

1988-10-12T18:00:00

Event: BURN,CLOTHING,ELECTRICAL,PANELBOARD,ELECTRICAL WORK,LOCKOUT,E C,CIRCUIT BREAKER,ELECTRICAL FAULT,BLIND REACHING
Linked inspection: No inspection record linked to this accident's victims.
Summary number: 606889
Report ID: 418100

Event description

BURN - ELECTRICAL FAULT AND EXPLOSION

Investigation abstract

DURING A CONSTRUCTION PROJECT TO REMODEL AN EXISTING BUILDING INTO A PHARMACY, A CTRICAL EXPLOSION BURNED SIX EMPLOYEES. THREE OF THEM WERE HOSPITALIZED FOR THEI R INJURIES. N EMPLOYEE WAS GOING TO ADD A CONDUIT TO AN EXISTING PANELBOARD WHILE IT REMAINE D ENERGIZED. HE DRILLED INTO THE ENERGIZED PANELBOARD, AND THE DRILL CONTACTED L IVE PARTS. THE RESULTING FAULT TRIPPED THE MAIN CIRCUIT BREAKER, AND AT LEAST ON E OF THE THREE FUSES ON THE SERVICE POLE OPENED. ONE OR MORE OF THE THREE PHASE CONDUCTORS TO THE PANELBOARD REMAINED ENERGIZED. THE EMPLOYEE ATTEMPTED TO RESET THE MAIN CIRCUIT BREAKER, BUT COULD NOT DO SO. TWO OTHER EMPLOYEES REMOVED THE COVER FROM THE PANELBOARD AND, WITH ONLY A FLASHLIGHT TO PROVIDE ILLUMINATION, T RIED TO REPAIR THE MAIN CIRCUIT BREAKER. A FAULT OCCURRED, AND THE RESULTING ELE

Victims (6)

#1 Hospitalized Age 43 M

Nature of injury
5

Part of body
19

Event type
14

Source
15

Occupation code
999

Human factor
14

Environmental factor
18

Task assigned
1
#2 Non-hospitalized injury Age 44 M

Nature of injury
5

Part of body
12

Event type
14

Source
15

Occupation code
999

Human factor
14

Environmental factor
18

Task assigned
1
#3 Hospitalized Age 22 M

Nature of injury
5

Part of body
19

Event type
14

Source
15

Occupation code
999

Human factor
14

Environmental factor
18

Task assigned
1
#4 Hospitalized Age 22 M

Nature of injury
5

Part of body
19

Event type
14

Source
15

Occupation code
999

Human factor
14

Environmental factor
18

Task assigned
1
#5 Non-hospitalized injury Age 41 M

Nature of injury
5

Part of body
2

Event type
14

Source
15

Occupation code
999

Human factor
14

Environmental factor
18

Task assigned
1
#6 Non-hospitalized injury Age 19 M

Nature of injury
5

Part of body
15

Event type
14

Source
15

Occupation code
999

Human factor
14

Environmental factor
18

Task assigned
1

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