HOW ULTRASOUND CAN PREVENT ELECTRICAL FAILURES BY NON INVASIVE INSPECTION OR 'WHAT IS THAT SOUND COMING FROM THE ELECTRICAL CABINET?'

摘要

Arc flash can kill. Arc flash can be considered as a short circuit through the air. It produces tremendous stored up energy that will travel outward from electrical equipment. An arc flash produces temperatures as high as 35,000°F, which is hotter than the sun and produces a force that is equivalent to being hit by a hand grenade. The impact is so high it can cause hearing loss and memory loss. If it doesn't kill you, it will severely burn or injure you. In addition, the conditions that produce an arc flash, even when no arc flash occurs, will also lead to damage to electrical equipment causing unplanned outages and costly downtime. Statistics show that 5 - 10 arc flash explosions occur in electric equipment daily within the United States. Unreported instances are reputed to be several times greater. Many of these victims are so badly burned they require treatment at special burn centers.