Cable tray on the ceiling of a shop
A cable tray is a system to put insulated cables and other wiring (communication, network etc.) in building structures, such as in office buildings, residential, industries etc. A cable tray system gives easy access. This is useful when adding new cables or replacing the old cables on the tray.
Cable trays can be made out of galvanized steel, stainless steel, aluminum or plastic. The choice depends on how it will be used or where it will be placed.
Images for kids
Fire test in Sweden, showing rapid fire spread through burning of cable jackets from one cable tray to another
Cable spreading room at Point Tupper
Seismic bracing of a cable tray trapeze support. The diagonal strut and horizontal tie restrains motion longitudinally and laterally.