The program uses the coordination feature Protection & Coordination™ to calculate the trip time for the estimated fault current passing through the protective device. The V6.0 Enhanced equations are included for archival purposes only.ĮasyPower obtains the arcing time from the upstream protective device of the faulted bus. If you choose to use the Enhanced equations, it is recommended that the V7.0 Enhanced be used. The V6.0 Enhanced equations pre-dated the V7.0 Enhanced equations. The Enhanced method is intended to be a tool used to assist in the selection of protective clothing for workers who may be exposed to arc flash. However, users should be aware that the Enhanced models cannot be guaranteed to be more accurate than the IEEE 1584-2002. Based on engineering judgments and comparison with test data from the industry, the results from the Enhanced equations appear to be more reasonable than the IEEE 1584-2002 over a wide range of bolted fault currents and system voltages.
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