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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 ...
A webcam is a video camera which is designed to record or stream to a computer or computer network. They are primarily used in video telephony , live streaming and social media , and security . Webcams can be built-in computer hardware or peripheral devices , and are commonly connected to a device using USB or wireless protocol .
Skycam is a computer-controlled, stabilized, cable-suspended camera system. The system is maneuvered through three dimensions in the open space over a playing area of a stadium or arena by computer-controlled cable-drive system. It is responsible for bringing video game–like camera angles to television sports coverage. The camera package ...
GFCI devices come in many configurations including circuit-breakers, portable devices and receptacles. Another safety device introduced with the 1999 code is the arc-fault circuit interrupter (AFCI). This device detects arcs from hot to neutral that can develop when insulation between wires becomes frayed or damaged.
Any additional connection to Earth on the protected system can disable the detector. Additional resistance and an additional point of failure added into the Earthing system. The devices senses equipment faults and cannot detect if a person accidentally touches an energized part of the devices.
This is an accepted version of this page This is the latest accepted revision, reviewed on 12 January 2025. System to display a view of a 3D virtual world Virtual camera system demo showing parameters of the camera that can be adjusted Part of a series on Video game graphics Types 2.5D & 3/4 perspective First-person view Fixed 3D Full motion video based game Graphic adventure game Isometric ...
They deployed the water-restriction device Mohammed mentioned—popularly called the “Aqua-Loc”—which acts on heavy water users like a bariatric-surgery band acts on the stomach: If you even attempt to draw more than the current daily water allotment, it just shuts off your taps. Technicians are now installing 2,500 such devices a week.
This can be a hazard because the neutral wire is a current-carrying conductor, which means the exposed casing can become energized. [2] In addition, a fault condition to a bootleg ground will not trip a GFCI breaker, nor protect a receptacle that is wired from the load side of a GFCI receptacle.