W401 plant room control panel, 24 Sep 2011. The three bulbs show that all three parts of the three-phase electrical system are present.
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See full size image Caption: W401 plant room control panel, 24 Sep 2011 Description: W401 plant room control panel, 24 Sep 2011. The three bulbs show that all three parts of the three-phase electrical system are present. Alt text: W401 plant room control panel, 24 Sep 2011 Image credit: Team Urbex - ATF Photo subject date: 24/09/2011 |