Code Q&A: Determining the Minimum Number of Circuits Required

NEC guidelines for the minimum number of general lighting and general-use receptacle branch circuits

Q. How do you determine the minimum number of general lighting and general-use branch circuits required by the NEC for dwellings?

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A. The minimum number of general lighting and general-use receptacle branch circuits must be determined by dividing the total calculated load in amperes by the ampere rating of the circuits used [210.11(A)].

For example, let’s say you’re trying to determine how many 15A, 120V ci

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