You peer through the bars on the door and see a little power box on the opposite wall with 2 little high voltage wire terminals on there.

You then look through the bars very carefully avoiding being shocked to death, and see wires leading to each one of the cells. It seems to provide power for the doors and the bars.

From your times working as an engineer you know that those terminals are very unsafe to water and blunt force. If you could short it out some how or destroy it, it might be your key to escaping these cells.