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Residual Current Device

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Residual Current Device. The device monitors the flow of electricity as it enters a property from the main distribution panel. Rcds are electrical safety devices designed to immediately switch off the supply of electricity when electricity leaking to earth is detected at harmful levels.

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A residual current device rcd residual current circuit breaker rccb or ground fault circuit interrupter gfci is a device that quickly breaks an electrical circuit to prevent serious harm from an ongoing electric shock. Residual current devices or rcds. Residual current device rcd it is not quite clear when and by whom the first residual current device rcd was developed but it certainly appeared on the market in the 1950s and was initially used by some utility companies to fight energy theft due to the use of currents from phase to earth instead of phase to neutral.

The device monitors the flow of electricity as it enters a property from the main distribution panel.

Are safety switches that prevent people from getting electrocuted in homes and businesses. A residual current device or safety switch protects you from the most frequent cause of electrocution a shock from electricity passing through the body to the earth. Residual current and overcurrent protection may be combined in one device for installation into the service panel. Rcds offer a level of personal protection that ordinary fuses and circuit breakers cannot provide.

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