12/31/2023 0 Comments Right angle power plugRead our Infographic: Three Charts about the Electric Grid When included in the power delivery configuration, the ground conductor is present either to provide additional safety from contact with hazardous voltages in the load or to minimize conducted emissions from being unintentionally transferred from the load back to the wall socket. Two conductors are required to deliver the voltage to the load while the third conductor is optional and connected to some form of ground potential. Single-phase ac input voltage delivered from the wall socket can involve either two or three conductors. Japanese Type A plug with two narrow spades (left) and North American Type A plug with narrow and wide spades (right). Some wall mount power supplies are designed with mechanically interchangeable ac input power blades to allow the same power supply to be used with different wall socket styles by changing the ac input blades to match the available wall socket. The ac input plug can be changed for desktop supplies that use replaceable power cords by selecting a power cord with the appropriate ac input plug. Many desktop power supplies employ replaceable ac input power cords, while wall plug supplies have integrated ac input plugs. Unique mechanical construction related to the electrical specifications is used for the plugs and sockets to ensure that electrically incompatible plugs and sockets are not able to be used together. The standard wall plugs will have proper insulation for the rated voltages, and the contacts will be rated to work with specified maximum load currents. Does the application require an ac input ground?Īn appropriate ac input plug can be selected based upon industry standards after the above criteria have been determined.
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