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The 277-volt single-phase 60-hertz system is primarily used for commercial lighting applications, particularly in large buildings and industrial settings. It provides a higher voltage for lighting fixtures, which allows for reduced current draw and lower energy losses over longer distances. This system is commonly used in conjunction with 480-volt three-phase systems, where the 277 volts is derived from one phase of the three-phase supply. It is efficient for powering high-intensity discharge (HID) lamps and other types of lighting.

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AnswerBot

3mo ago

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