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  2. Trailer connectors in North America - Wikipedia

    en.wikipedia.org/wiki/Trailer_connectors_in...

    Light vehicles use a plethora of contacts, [8][9][10] but among these are two that are most common: 4-pin flat connector, often used for simpler trailers. 7-pin round blade connector, often used in caravans/RVs etc. Due to this there are unified vehicle outlets on the market that combine these two into a single module.

  3. ISO standards for trailer connectors - Wikipedia

    en.wikipedia.org/wiki/ISO_standards_for_trailer...

    Trailer connectors between the trailer and passenger car, light truck or heavy trucks with 12V systems. In Europe, both 7-pin (ISO 1724) and 13-pin (ISO 11446) are common. The 13-pin version being phased in is newer, provides more services than the 7-pin, a more positive locking and also better protection against moisture and contamination.

  4. Multiway switching - Wikipedia

    en.wikipedia.org/wiki/Multiway_switching

    In building wiring, multiway switching is the interconnection of two or more electrical switches to control an electrical load from more than one location. A common application is in lighting, where it allows the control of lamps from multiple locations, for example in a hallway, stairwell, or large room. In contrast to a simple light switch ...

  5. NEMA connector - Wikipedia

    en.wikipedia.org/wiki/NEMA_connector

    The addition is a 3 ⁄ 16-inch (4.8 mm) diameter round or U-shaped ground pin, 1 ⁄ 8 in (3.2 mm) longer than the power blades (so the device is grounded before the power is connected) and located from them by 1 ⁄ 4 in (6.4 mm) edge-to-edge or 15 ⁄ 32 in (11.9 mm) center-to-center.

  6. Circuit diagram - Wikipedia

    en.wikipedia.org/wiki/Circuit_diagram

    A circuit diagram (or: wiring diagram, electrical diagram, elementary diagram, electronic schematic) is a graphical representation of an electrical circuit. A pictorial circuit diagram uses simple images of components, while a schematic diagram shows the components and interconnections of the circuit using standardized symbolic representations.

  7. Electrical wiring in the United Kingdom - Wikipedia

    en.wikipedia.org/wiki/Electrical_wiring_in_the...

    Electrical installations. Electrical wiring in the United Kingdom is commonly understood to be an electrical installation for operation by end users within domestic, commercial, industrial, and other buildings, and also in special installations and locations, such as marinas or caravan parks. [1] It does not normally cover the transmission or ...

  8. Electrical wiring - Wikipedia

    en.wikipedia.org/wiki/Electrical_wiring

    Electrical wiring is an electrical installation of cabling and associated devices such as switches, distribution boards, sockets, and light fittings in a structure. Wiring is subject to safety standards for design and installation. Allowable wire and cable types and sizes are specified according to the circuit operating voltage and electric ...

  9. Gender of connectors and fasteners - Wikipedia

    en.wikipedia.org/wiki/Gender_of_connectors_and...

    [8] [9] [10] A connector in a fixed location is a "jack", and a moveable connector is a "plug". [8] [10] The distinction is relative, so a portable radio is considered stationary compared to the cable from the headphones; the radio has a jack, and the headphone cable has a plug. Where the relationship is equal, such as when two flexible cables ...