![]() ![]() This will provide accurate information that can be used to set the distances in your facility. The Flash Risk Boundary is based on the distance from the arc source that a person could be standing and suffer second-degree burns during an arc flash event. Most companies will use software programs where they can enter in the voltage information about a piece of equipment, and it will calculate the arc flash boundary automatically. ![]() The exact method of calculation is different for AC and DC systems as well, so it is critical to have this information available. Flash Protection Boundary (outer boundary): The flash boundary is the farthest established boundary from the energy source. #Arc flash boundary how toHow to Calculate the Arc Flash BoundaryĬalculating an arc flash boundary is going to be based on the voltage of the equipment that would cause the arc flash. At 1.2 cal/cm2 an operator is likely to receive second-degree burns if. NFPA-70E-130.5(B) provides the requirements for establishing the Arc Flash Boundary as either the distance at which the incident energy equals 5 J/m2 (1.2 cal/. When they are performing this task, here are the things that they will need to do. The Arc Flash Boundary is the distance at which the incident energy equals 1.2 cal/cm2. Calculating where the boundary will be in any given situation is something that should be done by an electrical engineer. Mitigate arc flash hazards: modify your work practices, electrical equipment or electrical system, or install arc. ![]() This is the level at which it will cause only second-degree burns rather than third-degree. An arc flash boundary is the distance from the equipment in question to the point where the energy that would be present in an arc flash is 1.2 cal/cm2. ![]()
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