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2. Electrical wiring in North America - Wikipedia

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

   Hot is any line or neutral conductor (wire or otherwise) connected with an electrical system that has electric potential relative to electrical ground or line to neutral. Ground is a safety conductor with a low impedance path to earth. It is often called the "ground wire," or safety ground. It is either bare or has green insulation. [1]

3. Utility pole - Wikipedia

   en.wikipedia.org/wiki/Utility_pole

   From Wikipedia, the free encyclopedia. Post used by public utilities to support overhead wires and related equipment. Utility pole supporting wires for electrical power distribution, coaxial cablefor cable television, and telephone cable. A pair of shoescan be seen hanging from the wires (center-left, far right)

4. Middle Ground (The Wire) - Wikipedia

   en.wikipedia.org/wiki/Middle_Ground_(The_Wire)

   The Wire. ) " Middle Ground " is the 11th episode of the third season of the HBO original series The Wire. The episode was written by George Pelecanos from a story by David Simon & George Pelecanos and was directed by Joe Chappelle. It originally aired on December 12, 2004.

5. Three-prong adaptor - Wikipedia

   en.wikipedia.org/wiki/Three-prong_adaptor

   A cheater plug, AC ground lifter or three-prong/two-prong adapter is an adapter that allows a NEMA 5-15P grounding -type plug (three prongs) to connect to a NEMA 1-15R non-grounding receptacle (two slots). [1] : 112 They are needed to allow appliances with 3-wire power cords to plug into legacy ungrounded (two slot) receptacles found in older ...

6. Ground and neutral - Wikipedia

   en.wikipedia.org/wiki/Ground_and_neutral

   Neutral is a circuit conductor that normally completes the circuit back to the source. NEC states that the neutral and ground wires should be connected at the neutral point of the transformer or generator, or otherwise some "system neutral point" but not anywhere else. [ 1] That is for simple single panel installations; for multiple panels the ...

7. Arresting gear - Wikipedia

   en.wikipedia.org/wiki/Arresting_gear

   An F-14 Tomcat descends to make an arresting gear landing on the flight deck of USS Theodore Roosevelt (CVN-71) in 2002. An arresting gear, or arrestor gear, is a mechanical system used to rapidly decelerate an aircraft as it lands. Arresting gear on aircraft carriers is an essential component of naval aviation, and it is most commonly used on ...

8. Earthing system - Wikipedia

   en.wikipedia.org/wiki/Earthing_system

   Earthing systems. v. t. e. An earthing system (UK and IEC) or grounding system (US) connects specific parts of an electric power system with the ground, typically the equipments conductive surface, for safety and functional purposes. [ 1] The choice of earthing system can affect the safety and electromagnetic compatibility of the installation.

9. Split-phase electric power - Wikipedia

   en.wikipedia.org/wiki/Split-phase_electric_power

   However, 130/225 V, three-wire, two-phase electric power discontinued systems called B1 are used to run old installations in small groups of houses when only two of the three-phase high-voltage conductors are used. The phase shift in Europe is 120°, as is the case with three-phase current. That's why we calculate 130V * √3 = 225V.