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  2. Twist-on wire connector - Wikipedia

    en.wikipedia.org/wiki/Twist-on_wire_connector

    Twist-on wire connectors are a type of electrical connector used to fasten two or more low-voltage (or extra-low-voltage) electrical conductors. They are widely used in North America and several European countries in residential, commercial and industrial building power wiring, but have been banned in some other jurisdictions.

  3. Aluminum building wiring - Wikipedia

    en.wikipedia.org/wiki/Aluminum_building_wiring

    However, use of the Alumiconn connectors is a relatively newer repair option for older aluminum wiring compared to other methods, and use of these connectors can have some of the same or similar problems with limited enclosure space as the COPALUM connectors. Ideal no. 65 Al-Cu twist-on wire nut with distinctive purple color

  4. 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 ...

  5. Thermoplastic-sheathed cable - Wikipedia

    en.wikipedia.org/wiki/Thermoplastic-sheathed_cable

    In North America, this type of cable is designated as NM cable. NM means "nonmetallic", referring to the outer sheathing; the conductors are still metallic. NM was first listed and described in the NEC in 1926, but it was invented a few years earlier by the Rome Wire Company in 1922 in Rome, New York, and marketed under the trade name "Romex". [2]

  6. Electrical cable - Wikipedia

    en.wikipedia.org/wiki/Electrical_cable

    6 inch (15 cm) outside diameter, oil-cooled cables, traversing the Grand Coulee Dam throughout. An example of a heavy cable for power transmission. Fire test in Sweden, showing fire rapidly spreading through the burning of cable insulation, a phenomenon of great importance for cables used in some installations. 500,000 circular mil (254 mm 2) single conductor power cable

  7. IDC (electrical connector) - Wikipedia

    en.wikipedia.org/wiki/IDC_(electrical_connector)

    Pin 1 is typically indicated on the body of the connector by a red or raised "V" mark. The corresponding wire in a ribbon cable is usually indicated by red coloration, a raised molded ridge, or markings printed onto the cable insulation. On the connector pin 2 is opposite pin 1, pin 3 is next to pin 1 along the length of the connector, and so on.

  8. NEMA connector - Wikipedia

    en.wikipedia.org/wiki/NEMA_connector

    NEMA L14 are three-pole and ground connectors rated for 125/250 V. Intended for three-pole, four-wire hot-hot-neutral-ground circuits with a nominal supply voltages of 240 or 208 V hot-to-hot and 120 V hot-to-neutral.

  9. IEC metric screw sized connectors - Wikipedia

    en.wikipedia.org/wiki/IEC_metric_screw_sized...

    Ethernet cable with an M12 X-coded connector in one end and a modular connector in the other. IEC metric screw sized connectors is a family of electrical connectors defined by IEC that are named according to their ISO metric screw thread , namely M5 , M8 and M12 . [ 1 ]

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