Type: Lessons Learned
Publisher: Thomas Jefferson National Accelerator Facility, Newport News, VA
Published As: Public
A worker in Hall A was using a portable band saw that was plugged into an electrical outlet on the JLG-manlift when he felt a slight shock in his forearm. There was no indication of damage to the manlift or the electrical system. Inspection of the equipment determined that the internal power cord was damaged. When the internal power cord was plugged into a 120 volts AC wall power, there was a repeatable 48 VAC between the body of the man lift and earth ground and when power was removed from the internal power cord the 48VAC disappeared. Facilities Management and Logistics determined that the internal cord had leakage to the body of the man lift and it was replaced.
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