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Occupational Safety and Health Administration OSHA

Accident Report Detail

Accident: 3972.015 - Employee Installing A Pump Is Electrocuted

Accident: 3972.015 -- Report ID: 0522000 -- Event Date: 11/14/2011
InspectionOpen DateSICEstablishment Name
108974.01511/15/2011Werling And Sons, Inc.
At approximately 6:00 p.m. on November 14, 2011, Employee #1, the co-owner of th e company, was using a vice grip to attempt to crimp a wire end connection to a 208 AC Volt 3-Phase feed to install a new motor. He was found lying across the piping in the boiler room with multiple burns to his hands and torso due to an a pparent electrocution. Approximately one week prior to the accident, Employee # 1 had removed the irreparable secondary/ backup 208 VAC, 3-phase electric water pump from the #2 boiler in the boiler room. It was determined that Employee #1 had separated the conductors and left them exposed and uncapped after removing t he motor. The circuit breaker box (isolating device) for the #2 boiler, which fe d the motor controller for the unit which, in turn, fed a toggle switch for powe r to the motor (circuit control) were all located just inside the door to the bo iler room. The defective pump was removed without incident, so it is unknown ho w or when Employee #1 interrupted the power feed prior to starting this work. T he replacement motor was delivered earlier the day of the accident. The power f eed for the motor was at floor level and was surrounded by various pipe lines fo r the boiler which were located at different heights, necessitating that Employe e #1 work in a kneeling position and bend forward and over some of the boiler pi ping in order to access the power feed. It appears that Employee #1 was using a pair of vice grips in an attempt to crimp a new piece of hardware on the end of one of the conductors when he was electrocuted. Responders threw the main disco nnect and locked it out as Employee #1 was still in the circuit at the time the accident was discovered. There were arc burns on the vice grips, which were stil l in Employee #1's left hand, as well as on two of the conductors. There was als o evidence of an arc weld on the jaws of the grips. Employee #1 had burns to the palms of both hands and across the chest and lower abdomen, with the torso burn s being consistent with the location and height of the piping Employee #1 was le aning over. Employee #1 either failed or forgot to interrupt or isolate power t o the feed before beginning work and when responders arrived, the breaker was no t thrown and the toggle switch was "On".
Keywords: circuit breaker, electrical, electrocuted, lockout
Employee # Inspection Age Sex Degree Nature Occupation
1 108974.015 39 M Fatality Managers, farms, except horticultural

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