enow.com Web Search

Search results

1. Results from the WOW.Com Content Network

2. Earthing system - Wikipedia

   en.wikipedia.org/wiki/Earthing_system

   A separate pilot wire is run from distribution/ equipment supply system in addition to earth wire, to supervise the continuity of the wire. This is used in the trailing cables of mining machinery. [19] If the earth wire is broken, the pilot wire allows a sensing device at the source end to interrupt power to the machine.

3. Ground (electricity) - Wikipedia

   en.wikipedia.org/wiki/Ground_(electricity)

   The "protective earth" (PE) safety ground wires in AC utility building wiring were not designed for, and cannot be used as an adequate substitute for an RF ground. The long utility ground wires have high impedance at certain frequencies. In the case of a transmitter, the RF current flowing through the ground wires can radiate radio frequency ...

4. Electrical wiring in North America - Wikipedia

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

   Special wiring rules apply to wet or corrosive locations, [13] and to locations which present an explosion hazard. [14] Wiring materials for use in the United States must generally be made and tested to product standards set by NEMA and Underwriters Laboratories (UL) and must bear approval marks such as those set by UL.

5. Isolated ground - Wikipedia

   en.wikipedia.org/wiki/Isolated_ground

   The primary reason for the use of isolated grounds (IG) is to provide a noise-free ground return, separate from the equipment grounding (EG) return. The EG circuit includes all of the metal conduit, outlet boxes, and metal enclosures that contain the wiring and must be grounded to provide a safe return path in case of fault currents.

6. Insulator (electricity) - Wikipedia

   en.wikipedia.org/wiki/Insulator_(electricity)

   Guy wires supporting antenna masts usually have strain insulators inserted in the cable run, to keep the high voltages on the antenna from short circuiting to ground or creating a shock hazard. Often guy cables have several insulators, placed to break up the cable into lengths that prevent unwanted electrical resonances in the guy.

7. Three-prong adaptor - Wikipedia

   en.wikipedia.org/wiki/Three-prong_adaptor

   The grounding wire would be diverted around the adapter to reach the faceplate screw above it. However, this ground-wire style of cheater plug was discontinued when it was noted that a loose unattached grounding wire could accidentally become connected to the "hot" blade of a nearby outlet, potentially leading to electric shock. As an ...

8. AOL Mail

   mail.aol.com

   Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!

9. Ground and neutral - Wikipedia

   en.wikipedia.org/wiki/Ground_and_neutral

   A ground connection that is missing or of inadequate capacity may not provide the protective functions as intended during a fault in the connected equipment. Extra connections between ground and circuit neutral may result in circulating current in the ground path, stray current introduced in the earth or in a structure, and stray voltage.