NFPA 70: National Electrical Code (NEC) 2011 Edition

NFPA 70: National Electrical Code (NEC) covers the installation of electrical conductors, equipment and raceways; signaling and communications conductors, equipment and raceways, and optical fiber cables and raceways for public and private premises; yards, lots, parking lots, carnivals and industrial substations; installations of conductors and equipment that connect to the supply of electricity; installations used by electric utilities, and recreational buildings, that are not an integral part of a generating plant, substation, or control center. It has been adopted in all 50 states and has saved untold lives with comprehensive requirements for electrical wiring and equipment. When the Code advances to incorporate new technologies, you can’t afford to fall behind!  You need the 2011 NEC to safeguard people and property, and avoid violations.

NFPA 70: National Electrical Code (NEC) 2011 Edition has undergone major changes designed to meet consumer demand for alternate energy, green technologies and IT equipment:

• New Article 694 has first-time requirements for small wind electric systems. 
• Revised Article 625 includes updates on safe battery charging for plug-in hybrid vehicles that reduce the risk of explosion. 
• Revised Article 705 covers interconnecting generators, windmills, and solar and fuel cells with other power supplies. 
• New Article 840 addresses the increased demand for broadband communications systems with requirements for wireless, routers and wireless disconnects. 

New requirements focused on workplace safety include:

• Means to reduce incident energy (240.87) 
• Labeling at subpanels to identify feeder supply source (408.4(B)) 
• Disconnecting means for transformers (450.14)
• First-time provisions on electrical installations over 600 volts. 
• New Article 399 incorporates requirements for overhead distribution systems for large electrical system users, such as school or business campus settings. 

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