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  2. Circuit breaker (overcurrent) - Wikipedia

    en.wikipedia.org/wiki/Circuit_breaker_(overcurrent)

    The disconnecting circuit breaker (DCB) was introduced in 2000 [18] and is a high-voltage circuit breaker modeled after the SF 6-breaker. It presents a technical solution where the disconnecting function is integrated in the breaking chamber, eliminating the need for separate disconnectors.

  3. Residual-current device - Wikipedia

    en.wikipedia.org/wiki/Residual-current_device

    A residual-current device (RCD), residual-current circuit breaker (RCCB) or ground fault circuit interrupter (GFCI) [a] is an electrical safety device, more specifically a form of Earth-leakage circuit breaker, that interrupts an electrical circuit when the current passing through line and neutral conductors of a circuit is not equal (the term residual relating to the imbalance), therefore ...

  4. Earth-leakage circuit breaker - Wikipedia

    en.wikipedia.org/wiki/Earth-leakage_circuit_breaker

    An earth-leakage circuit breaker (ELCB) is a safety device used in electrical installations to prevent shock. It consists of either a current sensing mechanism, or a voltage sensing mechanism. Such a protection mechanism may be found in the form of distribution board modules, standalone devices, and special sockets (aka receptacles ).

  5. Longboard (skateboard) - Wikipedia

    en.wikipedia.org/wiki/Longboard_(skateboard)

    Almost all longboard wheels are made from urethane. The performance of longboard wheels is determined by five characteristics: height, lip shape, contact patch, durometer, and hub setting. Typical longboard wheels range from 65 to 107 millimeters (2.6 to 4.2 in) in diameter. A taller wheel will have slower acceleration but a faster rolling speed.

  6. Distribution board - Wikipedia

    en.wikipedia.org/wiki/Distribution_board

    A distribution board (also known as panelboard, circuit breaker panel, breaker panel, electric panel, fuse box or DB box) is a component of an electricity supply system that divides an electrical power feed into subsidiary circuits while providing a protective fuse or circuit breaker for each circuit in a common enclosure.

  7. Longboarding - Wikipedia

    en.wikipedia.org/wiki/Longboarding

    Makana Cummins in California. Longboarding is a variation of skateboarding typified by the use of longer boards ("decks") with longer wheelbases and softer wheels.While longboards vary widely in shape and size, compared to street skateboards longboards are designed to be more stable at speed and to have more traction due to larger wheel sizes and softer wheel durometers.

  8. Recloser - Wikipedia

    en.wikipedia.org/wiki/Recloser

    Automatically closing the breaker after it has tripped and stayed open for a brief amount of time, usually after 1 to 5 seconds, is a standard procedure. [ 5 ] Reclosers are often used as a key component in a smart grid , as they are effectively computer controlled switchgear which can be remotely operated and interrogated using supervisory ...

  9. Surfboard - Wikipedia

    en.wikipedia.org/wiki/Surfboard

    The modern longboard has undergone many changes since its earlier models in the past. Today's longboard is much lighter than its predecessors. Its polyurethane foam and fiberglass design allows less drag on waves. Today's longboards are typically 240 to 300 cm (8 to 10 ft) long, although some ride boards up to 370 cm (12 ft) in length.

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