![]() Looking to get arc flash labels on your equipment? Contact us for more details. Having a detailed arc flash label on your equipment will spell out exactly what your arc flash boundary working distance is, ensuring you have the proper space to protect from arc flash. Standing outside of the arc flash protection boundary will ensure that you are not exposed. So, does the incident energy have a direct effect on the arc flash boundary distance? Yes! As mentioned above, arc flash distances are increased when dealing with higher incident energy value due to the increased risk of receiving 2nd-degree burns if exposed to an arc flash. So, instead of changing how far away this distance really is the term protection was dropped and now we have the arc flash boundary. The reason this was selected is because that is what is considered the survivable level… not the most comfortable level. This boundary (or invisible barrier) is the distance away from a potential arc flash hazard that someone would receive 2nd-degree burns if exposed to an arc flash. Originally this was referred to as the arc flash protection boundary… until someone realized it didn’t offer much protection. Alerting people to the presence of the boundary will allow them to take proper precautions and help contribute to the overall safety of the entire facility.FREE DOWNLOAD: DEFINITIVE GUIDE TO AF STUDIES This is typically done with floor marking tape as well as wall signs or labels. Once the arc flash boundary has been identified, facilities should make it clear so that those working or visiting the area will be able to spot it. By wearing proper PPE on either side of the boundary, those in the area can properly respond to an emergency, which will help to keep the facility safe. Even outside the arc flash boundary it is a good idea to at least wear basic PPE to avoid any type of injury. This will also let them know where they should begin wearing different levels of personal protection equipment. The most obvious benefit of an arc flash boundary is, as mentioned above, that people will know where the most serious risks exist. ![]() Having an arc flash boundary at this level allows people to work in the area with the understanding that if they cross the line, the danger goes up significantly. Third-degree burns are much more serious, can leave extensive scarring, and cause long term disabilities. While nobody wants to get any type of burn, second-degree burns are very treatable. approach distances calculator for energized equipment makes it easy. This energy level is sufficient to cause second-degree burns, but not third degree.Ĭalculate your minimum approach distance (MADs) Arc flash boundaries are calculated to be the distance from the equipment until the point where the energy from the arc flash would be 1.2 cal/cm2. Many people mistake an arc flash boundary for being the distance from an electrical system that an arc flash, or its heat, can cause injury to a person. These boundaries will let employees and others in the area know where the most serious danger is so they can avoid it whenever possible. ![]() To help keep those who work around electrical equipment safe, facilities need to set arc flash boundaries. Of course, anyone who comes into contact with the arc flash will also experience electrocution, which can be deadly. Anyone in the area is going to be exposed to extremely high temperatures, which can cause serious burns very quickly. They are most dangerous, however, for those who are in the immediate vicinity of where the fault occurs. Arc flashes are dangerous events that can impact an entire facility.
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