What is Flash Hazard?
A Flash Hazard refers to the danger associated with an arc flash—an explosive release of energy caused by an electrical fault or short circuit. This phenomenon results in extremely high temperatures, intense light, and pressure waves that can cause serious burns, blindness, and other life-threatening injuries.
In residential and commercial electrical work, flash hazards are a critical safety concern. Electricians working near energized electrical panels, switchgear, or transformers must wear arc-rated clothing and follow safety protocols defined by standards such as NFPA 70E. For example, during maintenance or troubleshooting of a live panel, an unexpected arc can occur, making proper PPE and hazard analysis essential to protect workers.
Flash Hazard assessments help determine the necessary safety measures, including required PPE levels, boundary distances, and lockout/tagout procedures. This ensures that electrical tasks are performed safely and in compliance with safety regulations.
