What is RCD.What is it aims.
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These electrical wiring devices are designed to quickly and automatically disconnect a circuit when it detects that the electric current is not balanced between the supply and return conductors of a circuit. ... RCDs are designed to disconnect the conducting wires ("trip") quickly enough to prevent serious injury.
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Recidual current devices (RCD) is a new device that provides alternative to electric fuse. It trips when there is an imbalance of current between the live and neutral wire. An RCD saves a devices connection in a circuit without tripping off the whole electricity of the house. It acts as a test switch and checks if every electric appliances is functioning properly.
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