Abstract: An improved housing for a busway system is provided by a two-piece ground bus which includes a generally U-shaped upper section having a top portion and a pair of parallel side flanges extending a predetermined distance and a generally U-shaped lower section having a bottom portion and a pair of parallel side flanges extending intermediate and parallel to the side flanges of the upper section. The main bus bars are retained intermediate the top portion and the bottom portion of the ground bus while also being positioned between the side flanges of the upper section of the ground bus. A side rail is provided on each side of the ground bus. A plurality of fasteners extend along the length of the busway section and connect each side rail with both the upper and lower sections of the ground bus.

Abstract: A spring clip arrangement connecting cylindrical bus bars in tandem comprising a U-shaped spring snap fitted into an insulator recess and a pair of separate metal clips seated therein and interlocked against movement relative the insulator support and the bus bars. Insertion of a bus bar clamps the clips between the spring and the bus bar.

Abstract: The following specification describes a feeder duct post assembly including a conduit for extending electrical connections from above a suspended ceiling to an outlet receptacle located between a pair of spaced barrier walls in the post. An upper wall on the conduit forms a lower wall of a junction box at the upper end of the post and defines a passage for extending communication wiring through the post to an outlet passage located above the outlet receptacle and barrier walls. The junction box has a cover movable between an open and closed positions, while retained on the box to enable wiring of the junction box. A boot on the lower end of the post optionally receives a plate having prongs to secure the post to carpeting or receives a pad or plate having an adhesive coat to secure the post to smooth flooring.

Abstract: A trench duct system of the type embedded in concrete floors or the like is provided for use in the distribution of electrical power, service and/or communication cables and wiring throughout a building. The system includes a plurality of trench duct sections which are interconnected to form a predetermined distribution layout. Each section of duct includes a cover plate which is removably supported by a pair of vertically adjustable side rails. The length of the cover plate and the length of each supporting side rail may or may not be the same and will depend upon the particular layout. The exposed surface of the cover plate is flush with the plane of the finished floor. Adjoining side rails, when in angular relation to one another, are interconnected by coupling members or connectors which maintain the continuity and stability of the system.

Abstract: The fitting is mountable on a cellular steel floor or deck prior to pouring of the concrete of a completed floor and comprises a separable flat base plate, a box-like housing, and a cover plate. Two self-grommeted openings in the base plate are axially aligned with respective openings of substantially equal size leading to adjacent cells of the deck, and a tab on the base plate at one of the grommeted openings interlocks with the deck to hold the base plate in position. Horizontally directed slots formed in the base plate along one longitudinal edge thereof cooperate selectively with tabs on the lower longitudinal edges of the housing to lock the housing on the base plate selectively in either of two positions. Screws or rivets may be used as additional fastening means for the base plate and housing.