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Electrical Products
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A residual current device (RCD), or residual current circuit breaker (RCCB), is an electrical wiring device that disconnects a circuit whenever it detects that the flow of current is not balanced between the phase ("hot") conductor and the neutral conductor. Such an imbalance is sometimes caused by current leakage through the body of a person who is grounded and accidentally touching the energized part of the circuit. A shock, possibly lethal, is likely to result from these conditions; RCDs are designed to disconnect quickly enough to greatly reduce the harm caused by such shocks.
In the United States and Canada, a residual current device is also known as a ground fault circuit interrupter (GFCI), Ground Fault Interrupter (GFI) or an appliance leakage current interrupter (ALCI). |
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Electrical Engineering
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Electrical engineering, sometimes referred to as electrical and electronic engineering, is an engineering field that deals with the study and application of electricity, electronics, and electromagnetism. The field first became an identifiable occupation in the late nineteenth century after commercialization of the electric telegraph and electrical power supply. The field now covers a range of sub-studies including power, electronics, control systems, signal processing and telecommunications. |
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