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2. Leviton - Wikipedia

   en.wikipedia.org/wiki/Leviton

   Leviton was founded in 1906 by Russian immigrants Evser Leviton and his son Isidor Leviton when they began manufacturing brass mantle tips for natural gas lights in Manhattan's Lower East Side. [ 2 ] [ 3 ] [ 4 ] In 1910, Isidor designed a screw-in lampholder for the newly invented electric light bulb and within ten years the lampholders were ...

3. Residual-current device - Wikipedia

   en.wikipedia.org/wiki/Residual-current_device

   A residual-current device (RCD), residual-current circuit breaker (RCCB) or ground fault circuit interrupter (GFCI) [a] is an electrical safety device, more specifically a form of Earth-leakage circuit breaker, that interrupts an electrical circuit when the current passing through line and neutral conductors of a circuit is not equal (the term residual relating to the imbalance), therefore ...

4. Electrical wiring in North America - Wikipedia

   en.wikipedia.org/wiki/Electrical_wiring_in_North...

   An outlet is defined by the NEC as "a point in the wiring system at which current is taken to utilization equipment". [1] This definition includes receptacles, lighting, motors, etc. Ordinary switches control but do not consume electricity, and therefore are not defined as outlets in this sense.

5. Remote communications outlet - Wikipedia

   en.wikipedia.org/wiki/Remote_communications_outlet

   There is also a special variant of RCO which in Canada is called a Dial-up Remote Communications Outlet (DRCO) and in the U.S. is called a Ground communication outlet (GCO). DRCOs and GCOs connect to an FIC or FSS over a phone line, and pilots initiate the connection by keying their microphones in a prescribed pattern.

6. Time switch - Wikipedia

   en.wikipedia.org/wiki/Time_switch

   A time switch (also called a timer switch, or simply timer) is a device that operates an electric switch controlled by a timer. Intermatic introduced its first time switch in 1945, which was used for "electric signs, store window lighting, apartment hall lights, stokers, and oil and gas burners." A consumer version was added in 1952.

7. Signalling control - Wikipedia

   en.wikipedia.org/wiki/Signalling_control

   The signalman must move each set of points to the desired position before operating the switch or button of the signal reading over them. This type of panel needs the least complex circuitry but is not suited to controlling large or busy areas. One control switch (OCS) A separate switch/button is provided for every signaled route.