OSHA Accident Investigation · Summary #570721
HOMBURG CONTRACTORS INC
MADISON, WI—
Event description
ELECTRIC SHOCK & BURN - JACKHAMMER CONTACTED UNDERGRD LINE
Investigation abstract
A CREW OF EMPLOYEES WAS REMOVING 24-INCH-DIAMETER CLAY SEWER PIPE WITH THE AID O F JACKHAMMERS. THE PIPE HAD BEEN LAID OVER UNDERGROUND POWER LINES INSTALLED IN CONDUITS. THE GENERAL APPEARANCE OF THE INSTALLATION INDICATED THAT THERE WAS A CONCRETE CAP OVER THE ELECTRICAL CONDUITS. HOWEVER, ONE EMPLOYEE RECEIVED AN ELE CTRIC SHOCK WHEN THE CHISEL ON THE JACKHAMMER PENETRATED THE CLAY PIPE AND THE F IBER DUCT BELOW IT. THE JACKHAMMER HAD CONTACTED ONE OF THE 2400-VOLT UNDERGROUN D POWER LINES. IN FACT, THERE WAS NO CONCRETE COVERING THE POWER LINES. THE EMPL OYEE RECEIVED BURNS TO HIS RIGHT HAND AND ARM AND TO HIS CHEST IN ADDITION TO TH E ELECTRIC SHOCK. HE WAS HOSPITALIZED FOR HIS INJURIES.
Victim
-
#1 Hospitalized Age 41 M
- Nature of injury
- 10
- Part of body
- 5
- Event type
- 13
- Source
- 15
- Occupation code
- 999
- Human factor
- 1
- Environmental factor
- 18
- Hazardous substance
- 8870
- 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.