Get Quick Access to the NEC® Essentials Turn to NEC® 2008 Need to Know for quick access to vital National Electrical Code® (NEC®) information that you need. This expert resource explains and interprets key material from the first four chapters of the NEC®, including general installation requirements...branch circuits...feeders...services...overcurrent protection ...grounding...conductors...conduits...cables...fixture wiring...switches... receptacles...lighting...motors...a/c and refrigeration...and generators— plus critical tables from Chapter 9.Packed with on-target illustrations, this essential compliance tool contains calculations and formulas commonly used to determine conduit and conductor sizes, required ampacities, adjustment multipliers, and electrical loads. This guide also presents a listing of specialty topics such as Emergency Systems, Communications, and Special Occupancy, as well as a cross-reference table with types of installations and where to find applicable Code. Designed to save time and money, reduce errors, and increase safety, NEC® 2008 Need To Know features:Clear explanations and interpretations of in-demand NEC® informationCommonly used calculations and formulasA listing of specialty topics keyed to applicable CodeA handy cross-reference table for quick access to crucial materialInside This On-the-Job Guide to Vital NEC® InformationGeneral Requirements for Electrical InstallationsBranch Circuits and FeedersBranch Circuit Feeders & Service Calculations and Electric ServicesOvercurrent Protection and TransformersGrounding and BondingWiring MethodsConductorsBoxes and CablebusLighting RequirementsMotorsRefrigeration and A/CGeneratorsUnderstanding and Applying NEC® Chapter 9 TablesCode Locations and References for Additional CodesAppendixesNational Fire Protection Association, NFPA, National Electrical Code, NEC, NFPA 70, and NFPA 70E are registered trademarks of the National Fire Protection Association. All NFPA trademarks are the official property of the National Fire protection Association.NEC® 2008 Need to Know is not affiliated with, authorized, endorsed by, or in any way officially connected with the National Fire Protection Association.