Abstract: Two employees were strengthening the ceiling in a small room in a bank that was being renovated. The employees had removed a section of drywall from the ceiling and were working from a rolling scaffold in the area above the ceiling. The employees were using a fluorescent lighting fixture of the type normally found in garages. The two employees had laid the lighting fixture, which had been rigged for portable use, on top of the ceiling. A grounding-type receptacle had been spliced into the power supply cord for the fixture. The fixture had been manufactured with an equipment grounding conductor; however, the plug at the end of the cord had been replaced with a two-pole, nonpolarized plug. One of the circuit conductors inside the metal outlet box was touching the box, and the resulting ground fault had energized the box and cover. One of the employees was electrocuted when he touched the fixture or outlet box.