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nec 2020 changes

  1. C

    400A Meter Main Questions

    Hello All, I have a question concerning the 2020 NEC Changes in 230.70, 230.71, specifically 230.71(B): Prior to 2020 NEC, a 400A meter Main allowed 2 x 200A Main Breakers in the same cavity/enclosure. According to the 2020 NEC, a change was made which required each 200A Breaker be separated...
  2. jar546

    Goodbye 6 Disconnect Rule in NEC 2020

    Bon voyage rule of 6 swipes of the hand for a service. There are ways to have more than one disconnect for a service but the days of having a panelboard with 6 swipes of the hand is now gone when you adopt the 2020 NEC.
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