Abstract: At approximately 9:15 a.m. on June 21, 2004, Employee #1, an apprentice for an electrical contractor, was told by his supervisor to change the light fixtures in the first-floor copy room of a building in Irvine, CA, and to take the old fixtures to a nearby building for disposal. He turned off the light switch in the copy room, used a fiberglass ladder to remove the old fixtures, and then left to dispose of the units. He returned and was on the ladder adjusting the snap plate on a new fixture when his left hand contacted a 227-volt ground wire. He received an electric shock and fell, landing on his left elbow and fracturing it. Employee #1 was hospitalized overnight. The lights in the copy room had been turned back on by one of the tenants who had come to work while Employee #1 was at the other building. Employee #1 did not de-energize the system at the panel. There were no witnesses to the accident.