Arc flash boundary2/20/2023 ![]() Once the data has been collected, a short-circuit analysis followed by a coordination study should be performed. The electric utility should be contacted for information, including the minimum and maximum fault currents that can be expected at the electrical service entrance to the facility. Also required are details of the lengths and cross-sectional area of all cables. The data collected includes the arrangement of components on a one-line drawing with nameplate specifications of every device. Let’s take a closer look at what’s involved in this process.Ĭollection of data is the first task at hand. In order to accurately determine the arc flash hazard at each electrical assembly in an industrial or commercial facility - and thus determine how best to protect people and equipment - it is first necessary to conduct a short-circuit study, coordination study, and then an arc flash hazard analysis of the entire power distribution system. This is because arc flash hazards pose an everyday risk in plants across the world, possessing the potential to destroy equipment and seriously injure, or kill, employees. ![]() More recently, however, the dangers of arc flash have come to the forefront of electrical safety programs and procedures. Clearing times can be automatically reduced based on current-limiting capabilities.Įlectric shock hazards, including electrocution, have been studied since the introduction of electricity. Clothing requirements are specified from a user-defined clothing library. ![]() Incident energy and arc flash boundaries are calculated following the NFPA 70E, IEEE 1584 and NESC standards. Arc Flash saves time by automatically determining trip times from the protective device settings and arcing fault current values. Arc Flash Evaluation calculates the incident energy and arc flash boundary for each location in a power system. ![]()
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