I was working on the control room of a new prison once. We were at the point of putting in the 2' X 4' fluorescent lay in fixtures. Another electrician came in to help me, and I told him that we were putting the fixtures together on the floor first, before laying them in (whips, bulbs, etc.). The fixtures had two ballasts that had to be plugged in with a factory installed pigtail, before wiring in the whip. The first one he did, he put the whip on, plugged in the ballasts, and then when he put the bulbs in, the bulbs lit up. I was watching him freak out. He grabbed the end of the whip and saw the wires just hanging there, not connected to anything. I was laughing pretty hard by now! The look on his face was comical. That's when I told him that they were the ballasts with the built in battery back up.
Edited for spelling
[This message has been edited by XtheEdgeX (edited 10-03-2006).]
