arcsäteilyn

Arc radiation, also known as arc flash or arc blast, is a dangerous phenomenon that occurs when an electrical current travels through the air between two points. This typically happens when a conductor becomes energized and a path to ground or another conductor is created, often due to equipment failure, accidental contact, or poor maintenance. The sudden release of energy can create an explosive arc of plasma, generating intense heat, light, pressure waves, and molten metal.

The temperatures reached during an arc flash can exceed 20,000 degrees Celsius, hotter than the surface of the sun. This extreme heat can cause severe burns to anyone nearby. The rapid expansion of air creates a powerful blast wave, which can throw workers and debris across a room, causing blunt force trauma. The intense light can cause temporary or permanent blindness, and the molten metal ejected from the arc can cause further burns and ignite clothing.

Arc flash hazards are a significant concern in industrial and electrical settings where high-voltage equipment is present. Safety precautions are crucial and include proper personal protective equipment (PPE) such as arc-rated clothing, face shields, and gloves. Electrical systems should be regularly inspected and maintained, and safe work practices, including de-energizing equipment before performing maintenance, are essential. Arc flash studies are often conducted to identify potential hazards and determine appropriate protective measures.