Arc Flash is a sudden release of electrical energy or fireball that is caused by a short circuit in electrical equipment. That fireball can release dangerous levels of thermal energy with temperatures over 35,000 degrees Fahrenheit. The rapid expansion of gases and temperatures, or pressure waves, during an arc-flash incident can send shrapnel, molten metal, tools, and other objects through the air at speeds over 700 mph. Add to that a sound pressure of 165dB (decibels) and an arc-flash incident can be the equivalent of a small explosion. Arc flash incidents can result in a loss of life, serious potential career ending injuries (including burns, loss of eyesight, and hearing that require extended recovery time), and extensive property damage. Continue Reading →
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