Definitions of Technical Terms
"A" "B", "C", "D", "E", "F", "G", "H", "I", "J", "K", "L", "M",
"N", "O", "P", "Q", "R", "S", "T", "U", "V", "W", "X", "Y", "Z"

Residual Current Device

A Residual Current Device [RCD] is also known as a Ground Fault Interrupter [GFI] and is used to disconnect a circuit whenever it detects that the electric current is not balanced between the hot conductor and the neutral conductor. In the U.S., the National Electrical Code requires Ground Fault Circuit Interrupters [GFCIs] in bathrooms, kitchens, garages, outdoor areas, crawl spaces, and unfinished basements, in residential construction.

RCD Circuit
Residual Current Device

These devices normally only provide ground fault protection, any over-load or short circuit still requires a circuit-breaker in the line.

Additional terms, residual current circuit breaker (RCCB), and appliance leakage current interrupter (ALCI).
Also refer to Ground Fault Interrupter [GFI] definition.

PC motherboard

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