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  2. Thermoplastic-sheathed cable - Wikipedia

    en.wikipedia.org/wiki/Thermoplastic-sheathed_cable

    If the label says "12-3", this cable has four conductors—three 12-gauge insulated wires and a bare copper ground wire. [5] Different types of cables are approved for different applications; the cable used for interior wiring in dry locations is different from the types approved for underground burial, direct embedment in concrete, or service ...

  3. Pothead - Wikipedia

    en.wikipedia.org/wiki/Pothead

    A three phase electric circuit terminated with a pothead Crossarms with two three phase electric circuits terminated with potheads. A pothead is a type of insulated electrical terminal used for transitioning between overhead line and underground high-voltage cable or for connecting overhead wiring to equipment like transformers. [1]

  4. Underground power line - Wikipedia

    en.wikipedia.org/wiki/Underground_power_line

    An underground power line provides electrical power with underground cables. Compared to overhead power lines , underground lines have lower risk of starting a wildfire and reduce the risk of the electrical supply being interrupted by outages during high winds, thunderstorms or heavy snow or ice storms.

  5. Electrical conduit - Wikipedia

    en.wikipedia.org/wiki/Electrical_conduit

    Box connectors join conduit to a junction box or other electrical box. A typical box connector is inserted into a knockout in a junction box, with the threaded end then being secured with a ring (called a lock nut ) from within the box, as a bolt would be secured by a nut.

  6. 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]

  7. Electrical wiring - Wikipedia

    en.wikipedia.org/wiki/Electrical_wiring

    The first rubber-insulated cables for US building wiring were introduced in 1922 with US patent 1458803, Burley, Harry & Rooney, Henry, "Insulated electric wire", issued 1923-06-12, assigned to Boston Insulated Wire and Cable . These were two or more solid copper electrical wires with rubber insulation, plus woven cotton cloth over each ...

  8. List of high-voltage underground and submarine cables

    en.wikipedia.org/wiki/List_of_high-voltage...

    London, Beddington Cable Tunnel,(Beddington – Rowdown) 400 kV 51.36594°N 0.12324°W ; 51.34789°N 0.00954°W London, Hertfordshire, Elstree to St. John's Wood Deep Cable Tunnel: 20 2005 400 kV 51.52666°N 0.16488°W ; 51.65512°N 0.32714°W London, West Ham – Hackney (Lower Lea Valley Cable Tunnel) 6.3 2008 400 kV

  9. Power cable - Wikipedia

    en.wikipedia.org/wiki/Power_cable

    Power cables use stranded copper or aluminum conductors, although small power cables may use solid conductors in sizes of up to 1/0. (For a detailed discussion on copper cables, see: Copper wire and cable.). The cable may include uninsulated conductors used for the circuit neutral or for ground (earth) connection.

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