How to Conduct a Successful Arc Flash Risk Assessment and Hazard Analysis
Arc flash and arc blast hazards have been around since electrical power has existed, but they have only recently been addressed in national standards. The National Fire Protection Association’s Standard for Electrical Safety in the Workplace (NFPA70E) states that all facilities must perform an arc flash risk assessment to determine the present degree of hazards, and then apply appropriate equipment labeling. The goal of an arc flash assessment is to: 1) identify arc flash hazards, 2) estimate the likelihood of occurrence and the potential severity of injury or damage to health and 3) determine if additional protective measures are required. Designing Your Arc Flash Study In accordance with NFPA 70E standards, arc flash studies should be conducted every five years or whenever a major modification is made to the facility. Keep in mind, even if you haven’t had a major change to your facility within the prescribed five-year window, the energy levels could still change. For instance, ...