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2. NEMA connector - Wikipedia

   en.wikipedia.org/wiki/NEMA_connector

   Per UL Standard ANSI/UL 498, a receptacle (any color) with an orange triangle, is an isolated ground (IG) device, where the grounding pin of the receptacle is connected to ground independently of the frame of the receptacle and wiring outlet box. This is also a requirement of the National Electrical Code (NFPA 70), Article 406.

3. Wiring diagram - Wikipedia

   en.wikipedia.org/wiki/Wiring_diagram

   An automotive wiring diagram, showing useful information such as crimp connection locations and wire colors. These details may not be so easily found on a more schematic drawing. A wiring diagram is a simplified conventional pictorial representation of an electrical circuit. It shows the components of the circuit as simplified shapes, and the ...

4. Power symbol - Wikipedia

   en.wikipedia.org/wiki/Power_symbol

   IEC 60417-5007, [6] the power-on symbol (line), appearing on a button or one end of a toggle switch indicates that the control places the equipment into a fully powered state. (1 or | means on.) IEC 60417-5008, [7] the power-off symbol (circle) on a button or toggle, indicates that using the control will disconnect power to the device. (0 or ...

5. Switch - Wikipedia

   en.wikipedia.org/wiki/Switch

   However, the phrase "toggle switch" is applied to a switch with a short handle and a positive snap-action, whether it actually contains a toggle mechanism or not. Similarly, a switch where a definitive click is heard, is called a "positive on-off switch". [11] A very common use of this type of switch is to switch lights or other electrical ...

6. Light switch - Wikipedia

   en.wikipedia.org/wiki/Light_switch

   A toggle light switch Internal components of a toggle switch. The toggle mechanism provides "snap-action" through the use of an "over-center" geometry. The design was patented in 1916 by William J. Newton and Morris Goldberg. [2] The switch actuator does not control the contacts directly, but through an intermediate arrangement of springs and ...

7. Electrical contact - Wikipedia

   en.wikipedia.org/wiki/Electrical_contact

   The National Association of Relay Manufacturers and its successor, the Relay and Switch Industry Association define 23 distinct forms of electrical contact found in relays and switches. [ 12 ] A normally closed ( NC ) contact pair is closed (in a conductive state) when it, or the device operating it, is in a deenergized state or relaxed state.

8. Kate Middleton's Emotional Return to Royal Walkabouts ... - AOL

   www.aol.com/kate-middletons-emotional-return...

   Kate Middleton’s return to greeting the public on Christmas Day was a poignant moment, not just for her, but for the many who had been eagerly awaiting her comeback after a difficult year. For ...

9. Electrical connector - Wikipedia

   en.wikipedia.org/wiki/Electrical_connector

   The M12 connector, specified in IEC 61076-2-101, is a circular electrical plug/receptacle pair with 12mm OD mating threads, used in NMEA 2000, DeviceNet, IO-Link, some kinds of Industrial Ethernet, etc. [16] [17] A disadvantage of the circular design is its inefficient use of panel space when used in arrays, when compared to rectangular connectors.