Victor L. Petrovic, Ph.D.
More than 2,000 workers are injured yearly in arc-flash incidents. High incident electrical energy traveling through the air results in an arc flash. Electricity jumps across a gap in milliseconds, heating a small quantity of air to temperatures reaching as high as 35,000 degrees F-three-and-a-half times the temperature of the surface of the sun-forming an intense fireball that vaporizes metal and burns everything combustible in the immediate area.
Use of arc suppression blankets can help reduce arc flash/blast injuries. When properly installed, arc suppression blankets absorb or deflect heat and blast energy emitted from an arc event, reducing the event's impact on workers.