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Pre-Owned National Electrical Code 2020, Paperback 1455922978 9781455922970 NFPA National Fire Protection Association
Pre-Owned National Electrical Code 2020, Paperback 1455922978 9781455922970 NFPA National Fire Protection Association
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National Electrical Code (NEC) is a set of regularly updated standards for the safe installation of electric wiring in the United States.First published in 1897, the NEC is updated once every three years National Electrical Code (NEC) National Electrical Code (NEC)