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  2. Knob-and-tube wiring - Wikipedia

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

    Over the K&T era multiple wire types evolved. Early wiring was insulated with cotton cloth and soft rubber, while later wiring was much more robust. Although the actual wire covering may have degraded over the decades, the porcelain standoffs have a nearly unlimited lifespan and will keep any bare wires safely insulated.

  3. Electrical wiring - Wikipedia

    en.wikipedia.org/wiki/Electrical_wiring

    Installing electrical wiring by "chasing" grooves into the masonry structure of the walls of a building. Materials for wiring interior electrical systems in buildings vary depending on: Intended use and amount of power demand on the circuit; Type of occupancy and size of the building; National and local regulations

  4. 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.

  5. Home wiring - Wikipedia

    en.wikipedia.org/wiki/Home_wiring

    In many new homes, the electrical switchboard is located on the outside of the external wall of the garage. How services are connected will vary depending on the service provider and location of the home. The following home services are supported by discrete wiring systems: Information and communications Entertainment Energy management

  6. First fix and second fix - Wikipedia

    en.wikipedia.org/wiki/First_fix_and_second_fix

    First fix comprises all the work needed to take a building from foundation to putting plaster on the internal walls. This includes constructing walls, floors and ceilings, and inserting cables for electrical supply and pipes for water supply. Some argue that First Fix starts after the shell of the building is complete, and ends when the walls ...

  7. BS 7671 - Wikipedia

    en.wikipedia.org/wiki/BS_7671

    Issued with red cover. Amended and reprinted in 1983 (green cover), 1984 (yellow cover), amended in 1985, amended and reprinted in 1986 (blue cover; to remove voltage operated earth leakage circuit breakers), 1987 (brown cover), and finally just reprinted with minor corrections (no amendment) in 1988 (brown cover). 1991 16th IEE

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