Underfloor assembly and cable distribution system and cable trench therefor

摘要

The underfloor assembly for a building comprises corrugated metal flooring units preferably side-by-side with cable distribution ducts, over which is mounted cable trenches. Each distribution duct has a bottom plate and a preferably inverted U-shaped top, the tops extending between adjacent intersections of the trench with the ducts to thus leave the duct open under the trenches. The bottoms of the trenches are open where they intersect the ducts, and the trenches are formed by field assembly of trench subunits that have a U-shaped bottom pan with cut-outs on either side of a preferably centrally located bottom portion, as well as a cover removably closing the pan.