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Arc Flash

The National Fire Protection Association describes arc flash as “a dangerous condition associated with the release of energy caused by an electric arc.” Arc flash is an accidental electrical explosion usually caused by a short circuit. It happens at higher voltages (around 300 volts and above) and causes electrical conductors to melt, creating a blast of molten or even vaporized metal. Temperatures can be as high as 20,000 degrees Celsius.
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