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The National Electrical Code® (NEC®) and the contents of this Online Guide are intended for qualified electrical and low-voltage professionals with an existing understanding of electrical theory, terminology and safety practices. This includes electrical inspectors, electricians, electrical engineers and other similarly qualified professionals. The Code is not written to serve as an instructive or teaching manual for untrained individuals [90.1(C)]. This Guide is intended to be used with the National Electrical Code and not as a replacement for it. Obtain the 2014 NFPA 70® to ensure compliance.