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What is over voltage

Date:2022-06-09   Click:1980   Source:YXST Votlage Protector


When the voltage in a circuit or part of it is raised above its upper design limit, this is known as overvoltage. The conditions may be hazardous. Depending on its duration, the overvoltage event can be transient—a voltage spike—or permanent, leading to a power surge.

 

Electronic and electrical devices are designed to operate at a certain maximum supply voltage, and considerable damage can be caused by voltage that is higher than that for which the devices are rated.

 

For example, an electric light bulb has a wire in it that at the given rated voltage will carry a current just large enough for the wire to get very hot (giving off light and heat), but not hot enough for it to melt. The amount of current in a circuit depends on the voltage supplied: if the voltage is too high, then the wire may melt and the light bulb would have "burned out real time". Similarly other electrical devices may stop working, or may even burst into flames if an overvoltage is delivered to the circuit.

 

Think of the flow of electricity like water running through a pipe. Water moves from one end of a pipe to the other end due to water pressure---water moves from high pressure to low pressure.

 

Electricity operates in a similar way, moving from areas of high electric potential energy to areas of low electric potential energy. In this case, it's from one end of a wire to the other end.

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