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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 site of installation of electrical equipment.

  3. 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 ...

  4. Cable management - Wikipedia

    en.wikipedia.org/wiki/Cable_management

    Access flooring - cables are installed below a raised floor. In Floor Cellular Raceway Systems - utilize enclosed steel raceways located within a concrete floor slab to distribute power, data, and telecom cabling throughout a space to any location where these services are required today – and where they may be required in the future.

  5. First fix and second fix - Wikipedia

    en.wikipedia.org/wiki/First_fix_and_second_fix

    Some construction companies specialise in first fix work or second fix work, but most do both. In North America, terms such as roughing in and finishing or rough-in and finish work are often heard, referring to similar concepts. Another related set of terms is outside work and inside work (the building is closed to the weather when the latter ...

  6. Electrical wiring - Wikipedia

    en.wikipedia.org/wiki/Electrical_wiring

    The metal sheath was bonded to each metal wiring device to ensure earthing continuity. A system developed in Germany called "Kuhlo wire" used one, two, or three rubber-insulated wires in a brass or lead-coated iron sheet tube, with a crimped seam. The enclosure could also be used as a return conductor.

  7. National Electrical Code - Wikipedia

    en.wikipedia.org/wiki/National_Electrical_Code

    The National Electrical Code, 2008 edition. The National Electrical Code (NEC), or NFPA 70, is a regionally adoptable standard for the safe installation of electrical wiring and equipment in the United States. It is part of the National Fire Code series published by the National Fire Protection Association (NFPA), a private trade association. [1]

  8. BS 7671 - Wikipedia

    en.wikipedia.org/wiki/BS_7671

    electrical equipment of machines covered by BS EN 60204 electric fences covered by BS EN 60335-2-76 the DC side of cathodic protection systems complying with the relevant part(s) of BS EN ISO 12696, BS EN 12954, BS EN ISO 13174, BS EN 13636 and BS EN 14505.

  9. Junction box - Wikipedia

    en.wikipedia.org/wiki/Junction_box

    A small metal, plastic or fiberglass junction box may form part of an electrical conduit or thermoplastic-sheathed cable (TPS) wiring system in a building. If designed for surface mounting, it is used mostly in ceilings, concrete or concealed behind an access panel—particularly in domestic or commercial buildings [2].

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