Old BX, New Considerations

摘要

Last Month, I wrote that ground-fault circuit interrupters (GFCIs) can be especially valuable in the specific case of faults to the armor of older BX. This strikes me as true, and I was convinced that much older BX deserves derating.rnCurrent-carrying capacity is a matter of numbers. "Behind the Code," Creighton Schwan's last work (published September 2010), lists the critical studies that led to our ampacity tables, including A.E. Kennelly's study of more than a century ago.