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2. Electrical conduit - Wikipedia

   en.wikipedia.org/wiki/Electrical_conduit

   Surface mounted raceway (wire molding) [ edit ] This type of "decorative" conduit is designed to provide an aesthetically acceptable passageway for wiring without hiding it inside or behind a wall.

3. Electrical wiring - Wikipedia

   en.wikipedia.org/wiki/Electrical_wiring

   Metal moulding systems, with a flattened oval section consisting of a base strip and a snap-on cap channel, were more costly than open wiring or wooden moulding, but could be easily run on wall surfaces. Similar surface mounted raceway wiring systems are still available today.

4. Cellular floor raceways - Wikipedia

   en.wikipedia.org/wiki/Cellular_floor_raceways

   Cellular floor raceways are electrical wiring ducts or cells made from steel floor deck that serve as structural formwork for placement of concrete floor slabs and also as wire and cable raceways within the concrete floor slab.

5. Raceway - Wikipedia

   en.wikipedia.org/wiki/Raceway

   Raceway (aquaculture), a tank providing a flow-through system to support a higher density of animals for seafood; Raceway, surface mounted wire moulding in construction projects; Raceway, a mill race; the current or channel of a stream; Raceway, a brand of gasoline stations operated by RaceTrac contractors in the Southeastern United States

6. Cable tray - Wikipedia

   en.wikipedia.org/wiki/Cable_tray

   In the electrical wiring of buildings, a cable tray system is used to support insulated electrical cables used for power distribution, control, and communication. Cable trays are used as an alternative to open wiring or electrical conduit systems, and are commonly used for cable management in commercial and industrial construction. They are ...

7. Knob-and-tube wiring - Wikipedia

   en.wikipedia.org/wiki/Knob-and-tube_wiring

   Ceramic cleats, which were block-shaped pieces, served a purpose similar to that of the knobs except that cleats were generally used in places where the wiring was surface mounted. Not all knob and tube installations utilized cleats. Ceramic bushings protected each wire entering a metal device box, when such an enclosure was used.