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2. 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 ...

3. Power system protection - Wikipedia

   en.wikipedia.org/wiki/Power_system_protection

   Power system protection is a branch of electrical power engineering that deals with the protection of electrical power systems from faults [citation needed] through the disconnection of faulted parts from the rest of the electrical network. The objective of a protection scheme is to keep the power system stable by isolating only the components ...

4. Earth-leakage circuit breaker - Wikipedia

   en.wikipedia.org/wiki/Earth-leakage_circuit_breaker

   An earth-leakage circuit breaker (ELCB) is a safety device used in electrical installations to prevent shock.It consists of either a current sensing mechanism, or a voltage sensing mechanism.

5. Room air distribution - Wikipedia

   en.wikipedia.org/wiki/Room_air_distribution

   The displacement outlets are usually located at or near the floor with the air supply designed so the air flows smoothly across the floor. Where there is a heat source (such as people, lighting, computers, electrical equipment, etc.) the air will rise, pulling the cool supply air up with it and moving contaminants and heat from the occupied ...

6. Arc-fault circuit interrupter - Wikipedia

   en.wikipedia.org/wiki/Arc-fault_circuit_interrupter

   Dual-function AFCI GFCI (ground fault circuit interrupter) 110 volt receptacle circa 2016 AFCI receptacles are an alternative solution to AFCI breakers. These receptacles are designed to address the dangers associated with both types of potentially hazardous arcing: parallel and series.

7. Heating, ventilation, and air conditioning - Wikipedia

   en.wikipedia.org/wiki/Heating,_ventilation,_and...

   Central, "all-air" air-conditioning systems (or package systems) with a combined outdoor condenser/evaporator unit are often installed in North American residences, offices, and public buildings, but are difficult to retrofit (install in a building that was not designed to receive it) because of the bulky air ducts required. [32] (Minisplit ...

8. John Glenn Columbus International Airport - Wikipedia

   en.wikipedia.org/wiki/John_Glenn_Columbus...

   John Glenn Columbus International Airport (IATA: CMH, ICAO: KCMH, FAA LID: CMH) is an international airport located 6 miles (9.7 km) east of downtown Columbus, Ohio.Formerly known as Port Columbus International Airport, it is managed by the Columbus Regional Airport Authority, which also oversees operations at Rickenbacker International Airport and Bolton Field.

9. Columbus, Ohio - Wikipedia

   en.wikipedia.org/wiki/Columbus,_Ohio

   Columbus (/ k ə ˈ l ʌ m b ə s /, kə-LUM-bəs) is the capital and most populous city of the U.S. state of Ohio.With a 2020 census population of 905,748, [10] it is the 14th-most populous city in the U.S., the second-most populous city in the Midwest (after Chicago), and the third-most populous U.S. state capital (after Phoenix, Arizona, and Austin, Texas).