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  2. Electrical conduit - Wikipedia

    en.wikipedia.org/wiki/Electrical_conduit

    An electrical conduit is a tube used to protect and route electrical wiring in a building or structure. Electrical conduit may be made of metal, plastic, fiber, or fired clay. Most conduit is rigid, but flexible conduit is used for some purposes. Conduit is generally installed by electricians at the

  3. Knob-and-tube wiring - Wikipedia

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

    The conduit methods were known to be of better quality, but cost significantly more than K&T. [2] In 1909, flexible armored cable cost about twice as much as K&T, and conduit cost about three times the price of K&T. [6] Knob and tube wiring persisted since it allowed owners to wire a building for electricity at lower cost.

  4. Electrical wiring - Wikipedia

    en.wikipedia.org/wiki/Electrical_wiring

    Electrical conduit risers, seen inside fire-resistance–rated shaft, as seen entering bottom of a firestop. The firestop is made of firestop mortar on top, rockwool on the bottom. Raceways are used to protect cables from damage. Insulated wires may be run in one of several forms between electrical devices.

  5. Electrical wiring in North America - Wikipedia

    en.wikipedia.org/wiki/Electrical_wiring_in_North...

    Several other types of wiring systems are used for building wiring in the United States; these include corrugated metal armored cable, mineral-insulated cable, other types of power cable, and various types of electrical conduit. In industrial applications cables may be laid in cable trays.

  6. Orangeburg pipe - Wikipedia

    en.wikipedia.org/wiki/Orangeburg_pipe

    In turn, the Fiber Conduit Company's conduits were used to run electrical wiring throughout numerous newly constructed buildings across the country for the next forty years. Bradley, along with several competitors, installed miles of the fiber electrical conduit in skyscrapers, such as the Empire State Building. [1]

  7. Conduit - Wikipedia

    en.wikipedia.org/wiki/Conduit

    Conduit (fluid conveyance), a pipe suitable for carrying either open-channel or pressurized liquids; Electrical conduit, a protective cover, tube or piping system for electric cables; Conduit current collection, a system of ground-level power supply; Duct (flow), for heating, ventilating and air-conditioning