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2017 NEC Changes (rv-11106)
Chapter 2 of the 2017 National Electrical Code (NEC) contains requirements for wiring of grounded conductors, branch, feeder and service conductors. Several changes were made for branch circuit conductors, feeder conductors and service conductors in Articles 210, 215, and 230, and, as always, they are some of the biggest in the entire Code. Changes include new and revised rules for GFCI and AFCI protection, dwelling unit circuiting and receptacles outlet revisions, fixing the electric service receptacle rule, adding required lighting, adding receptacles in commercial buildings, clarifying how to size feeders, and new listing rules for service equipment, and others as well.