Abstract: At 1:00 p.m. on February 8, 2017, Employee #1, employed by a construction-related services company, was performing electrical work. He was terminating a ground wire onto a mechanical lug on the lower half of a 480-volt, 200-amp disconnect. When he loosened the mechanical ground lug, the ground wire came into contact with an energized A Phase at the top of the disconnect, which was not fully insulated. This caused an arc flash, and Employee #1 was burned. Emergency services were called, and Employee #1 was transported to the hospital. He was admitted and treated for burns to his face and left hand.