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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 that interrupts an electrical circuit when the current passing through a conductor is not equal and opposite in both directions, therefore indicating leakage current to ground or current flowing to another powered conductor.
To eliminate this confusion, the IEC decided to apply the term residual current device (RCD) to differential-current-operated ELCBs. Residual current refers to any residue when comparing current in the outbound and return currents in the circuit. In a single phase circuit this is simply the live or phase current minus the neutral current.
Residual-current device, a safety device that breaks an electrical circuit; Rabbit calicivirus disease, a disease caused by the Rabbit haemorrhagic disease virus; Registered clock driver chips, part of registered memory DIMMs; Resistor-capacitor delay in electronic circuits
Loose or poor connections in traditional electrical accessories and switchgear can cause heat to develop capable of starting a fire. This problem is known as High Resistance Connection (HRC) and safety devices such as fuses and Residual Current Devices (RCDs) are unable to disconnect the electrical supply because they cannot detect a HRC.
A residual-current device (RCD), or residual-current circuit breaker (RCCB), is a device that instantly breaks an electric circuit to prevent serious harm from an ongoing electric shock. A fuse or circuit breaker also does that, 'instantly' of course, is subject to qualification.
Avery County, North Carolina — Some people were skeptical, at first, of the stranger who rolled into flood-ravaged Avery County in western North Carolina this week claiming to be some kind of ...
The 2014 World Cup in Brazil has begun. Check HuffPost's World Cup dashboard throughout the tournament for standings, schedules, and detailed summaries of each match.
(Reuters) -Global trading house Cargill said on Tuesday it plans to cut around 5% of its staff, or about 8,000 jobs after revenue slumped in its most recent fiscal year as crop prices hit multi ...