Fault analysis in non-safety-related circuits during design basis events

It is typical when calculating short circuit currents to incorporate the full cable length into the fault analysis. However, you must be careful when analyzing short-circuits during design basis events. Continue reading “Fault analysis in non-safety-related circuits during design basis events”

Class 1E circuit independence – a summary of IEEE 384-1992

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Class 1E circuits must be independent from circuits of other categories. Understanding IEEE 384-1992 is vital to understanding the NRC’s circuit separation and isolation requirements. . . .  Continue reading “Class 1E circuit independence – a summary of IEEE 384-1992”