Inspection Detail

Inspection: 107505083 - Mchatton Construction Co.

Inspection Information - Office: Oklahoma City Area Office

Investigation Summary

THE SOLE OWNER OF A CONSTRUCTION COMPANY WAS ON A MOBILE SCAFFOLD INSTALLING ANGLE IRON IN A WALL CURTAIN. HE WAS WEARING LIGHT-DUTY PIG SKIN GLOVES AND WAS SWEATY. HE WAS USING A MOTOR-GENERATOR ARC WELDER SET AT 135 AMPERES, DC, IN THE WELDING OPERATION. THE ELECTRODE HOLDER WAS MISSING PART OF ITS INSULATION, EXPOSING CURRENT-CARRYING PARTS. THE EMPLOYEE PLACED THE ELECTRODE HOLDER ON THE BEAM DIRECTLY IN FRONT OF HIM, ALLOWING THE ELECTRODE HOLDER TO DANGLE FREELY. THE ELECTRODE HOLDER ACCIDENTALLY SWUNG AND CONTACTED THE ANGLE IRON THAT THE EMPLOYEE WAS HOLDING. THE EMPLOYEE WAS ELECTROCUTED. UPON INVESTIGATION, THE VOLTAGE BETWEEN THE ELECTRODE HOLDER AND THE BEAM WAS MEASURED TO BE 69 VOLTS.

Keywords: E GI V, ELEC INSULATION, METAL RAIL, ELECTRICAL, ELECTROCUTED, WELDING, WELDING ELECTRODE