A gutter is a wireway or auxiliary gutter: a square steel trough, often 4 by 4 or 6 by 6 inches, with a hinged or screw cover, mounted beside switchboards, meter banks and disconnects to tap and splice conductors and route them between equipment. Code limits conductor fill to 20 percent of the cross section, and 75 percent at any point where splices are made. The wiring space inside a panel between the interior and the enclosure wall is also called the gutter.
Land the six taps in the gutter above the disconnects, insulate them, and get the cover on before the inspector shows.
Also heard as
- wireway
- trough
- auxiliary gutter
Related terms
Tub
Empty panel enclosure, the steel back box that goes in at rough-in before the interior and cover arrive.
Guts
Interior of a panel: the bus bars, breaker mounting and neutral assembly that bolt into the enclosure.
Meter can
Meter socket enclosure where the utility revenue meter plugs in, mounted between the service drop and panel.