
1) Electric power distribution
Found on
https://www.crosswordclues.com/clue/power-box

A power box (USA) or feeder pillar (UK) is a cabinet for electrical equipment, mounted in the street and controlling the electrical supply to a number of houses in a neighborhood. A power box is simply a layman`s term for a transformer, cutout enclosure, or other enclosure used in conjunction with underground electrical distribution. In the Unite....
Found on
http://en.wikipedia.org/wiki/Power_box
No exact match found.