Brownouts occur from two different main sources; Internal or inside the home and external or outside the home. External occurs when there is high electrical usage or severe weather. For example on hotter summer days when there are several air conditioning units blasting in your neighborhood, the power grids can experience an overload.. A brownout is a temporary drop in voltage in your electrical supply system. This causes lights, appliances, and other electronics to receive less power than they need to operate at full efficiency. Brownouts are named for the way that they cause normal bright lights to turn a dim brown color. Brownouts can be caused by extreme weather events.
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A brownout is a partial reduction in power to an electrical grid. Though they're sometimes accidental, utility providers often plan brownouts in advance to prevent electrical grids from getting overloaded due to sudden spikes in demand. For example, a heat wave could cause millions of people to turn on their air conditioners at roughly the same time of day.. An electrical brownout is often less severe than a full-on blackout. During a brownout, power voltage is reduced and not cut entirely. This often is done on purpose at the hands of the power company to reduce strain on the overall system during times of high power consumption. This makes mitigation efforts one of the main causes of a brownout.
