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2. Three-prong adaptor - Wikipedia

   en.wikipedia.org/wiki/Three-prong_adaptor

   A safer and more reliable alternative identified in the US and Canadian electrical codes is to replace the outlet with a Ground Fault Circuit Interrupter (GFCI) breaker outlet. [3] Cheater plugs are also used to break ground loops in audio systems. [5] This practice has been condemned as disregarding electrical safety.

3. Electrical wiring in North America - Wikipedia

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

   Ground-fault circuit interrupter (GFCI) protection is required on receptacles in wet locations and locations where there exists an easy path for fault current to travel to earth. This includes all receptacles intended to service kitchen counter surfaces, crawl spaces at or below grade level, basements, garages and accessory buildings, bathrooms ...

4. 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 ...

5. Defense Supply Center, Columbus - Wikipedia

   en.wikipedia.org/wiki/Defense_Supply_Center...

   During World War II the center became the largest military supply installation in the world. In December 1942, an additional 295 acres (1.19 km 2) were purchased. With more than 10,000 civilian employees, it played a large part in the overall war effort. Some of the warehouses were turned into secured barracks to house prisoners of war.

6. Recloser - Wikipedia

   en.wikipedia.org/wiki/Recloser

   No Reclosing at all. Sensitive Ground Fault (North America) or Sensitive Earth Fault protection pickup at 500 mA removes 80% risk of fire start [13] Recloser with SGF/SEF Capability at 500 mA Smart Grid Distribution Network Automation: Centralised or Distributed Centralised Automation requires remote communication through SCADA or otherwise.

7. Ground continuity monitor - Wikipedia

   en.wikipedia.org/wiki/Ground_continuity_monitor

   A GFCI disconnects a circuit whenever it detects that the electric current is not balanced between the energized conductor and the return neutral conductor. See main article: Residual Current Device A basic summary of the cord mounted GCM involves a conductor path from the energized conductor (“hot” or black wire) directly through a low ...