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Switches are safe to open under normal load current (some switches are not safe to operate under normal or abnormal conditions), while protective devices are safe to open under fault current. Very important equipment may have completely redundant and independent protective systems, while a minor branch distribution line may have very simple low ...
Socket-outlet, auto switched by plug insertion. Automatically switched socket-outlets such as these may be used to supply power to refrigerators, some computers and other accessories that normally should not be switched off. The absence of a user operable switch prevents the accidental switching off of such devices Surface socket-outlet and plug.
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.
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In Morris Township, a $1.25 million sale for a home shattered all expectations. This NJ home sold for $255K over asking price — here’s why every house in the area will likely face the same fortune
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December 1961: BS 2814:1957 Amendment 2, title simplified to "13 Ampere Switch Socket-Outlets". 1962: BS 2814:1957 Supplement No. 1 added specification for surface mounted switch outlets. September 1967: BS 1363:1967 "Specification for 13A plugs, switched and unswitched socket-outlets and boxes" published.