Burn Injuries

Arc flash events can cause burns severe enough to threaten the lives of workers caught in them. Burn injuries are typically classified into three divisions, depending on the level of tissue that they affect. The following list describes the levels of burns and their effect:

A first-degree burn is a curable burn that only affects the outermost layer of the skin. Redness and irritation result, and the affected area of the skin may be sensitive to the touch. Sunburn would be an example of a typical first-degree burn.

In a second-degree burn, damage extends to the next underlying layer of the skin. The affected area reddens intensely and develops blistering. This results in severe pain, swelling, and vulnerability to infection.

Third-degree burns affect all three layers of the skin, causing the skin to be charred and blood to coagulate in vessels below the surface of the skin. Extensive scarring usually results from burns at this level.

Arc flash events regularly cause third-degree burns over large portions of the victim's body. The intense heat and light of an arc flash can destroy skin and tissue and can ignite or melt clothing-leading to further burns. The concussive blast can knock workers unconscious while their clothing and skin continues to burn.

To learn more about Arc Flash Safety visit our OSHA Construction Arc Flash Safety Online Training web page.