Recent content by jerry

  1. J

    DC arc

    During a recent NFPA 70E (Low Voltage) class, I was asked a question about Table 130.7 (C)(15)(b). Specifically, these folks may encounter very high DC fault currents and noticed that this table does not account for DC fault currents above 15kA (or 10kA if greater than 250V). I don’t have a...