NFPA 70: National Electrical Code (NEC), 2014 Edition

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The 2014 edition of NFPA 70: National Electrical Code responds to a changing world with new requirements addressing the emerging use of DC power in many applications, and new information about reducing electrical fire and shock hazards. Four added Articles expand coverage on growing technologies, including Low Voltage Suspended Ceiling Power Distribution Systems (Article 393); Modular Data Centers (Article 646); Fire Resistive Cable Systems (Article 728); and Energy Management Systems (Article 750). Other new or revised requirements enhance protection of electrical personnel from the risks of shock and electrocution, such as centralized locking requirements and revisions dealing with field marking of equipment and hazard warning labels.

By NFPA. Many new and revised requirements in the 2014 NEC® impact residential, commercial, and industrial electrical installations. The 2014 NFPA 70®: NEC® covers the latest requirements on electrical wiring and equipment installation issues, including minimum provisions for the use of connections, voltage markings, conductors, and cables. Chapters address specific circumstances surrounding special occupancies and industrial equipment and machines. It also contains specific details on the safe installation and use of communications and signaling conductors. The 2014 edition of the NEC has been revised to include important changes such as: Expanded AFCI and GFCI protection in homes; Continued emphasis on making installations safe for electrical workers; Coverage of new methods to distribute low voltage power; New approaches toward ensuring safety of photovoltaic (PV) electric systems; Changes to the long-standing voltage thresholds used in the Code; Plus hundreds of others that allow for the safe implementation of the latest in electrical system and equipment technology.

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