National Electrical Code 2008 Handbook

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National Electrical Code 2008 Handbook

PDF Free Download | National Electrical Code® 2008 Handbook 26th Edition by Brian J. McPartland, Joseph F. McPartland, and Frederic P. Hartwell.

Preface to National Electrical Code 2008 Handbook

The 26th edition of McGraw-Hill’s National Electrical Code® Handbook has been thoroughly revised to reflect the changes given in the 2008 National Electrical Code. This is a reference book of commentary, discussion, and analysis of the most commonly encountered rules of the 2008 National Electrical Code.

Designed to be used in conjunction with the 2008 NE Code book published by the National Fire Protection Association, this Handbook presents thousands of illustrations—diagrams and photos—to supplement the detailed text in explaining and clarifying NEC regulations.

Description of the background and rationale for specific Code rules is aimed at affording a broader, deeper, and readily developed an understanding of the meaning and application of those rules.

The style of presentation is conversational and intended to facilitate a quick, practical grasp of the ideas and concepts that are couched in the necessarily terse, stiff, quasi-legal language of the NEC document itself.

This Handbook follows the order of “articles” as presented in the NE Codebook, starting with “Article 90” and proceeding through “Appendix.”

The Code rules are referenced by “section” numbers (e.g., “250.138. Cord- and PlugConnected Equipment.”).

This format ensures a quick and easy correlation between NEC sections and the discussions and explanations of the rules involved.

This companion reference to the NEC book expands on the rules and presents common interpretations that have been put on the many difficult and controversial Code requirements.

A user of this Handbook should refer to the NEC book for the precise wording of a rule and then refer to the corresponding section number in this Handbook for practical evaluation of the details.

Because many NEC rules do not the present difficulty in understanding or interpretation, not all sections are referenced. But the vast majority of sections are covered, especially all sections that have proved troublesome or controversial.

And particular emphasis is given to changes and additions that have been made in Code rules over recent editions of the NEC.

\Although this new edition, McGraw-Hill’s National Electrical Code® 2008 Handbook, does not contain the complete wording of the NE Codebook, it does contain much greater analysis and interpretation than any other so-called Handbook contains.

Today, the universal importance of the NE Code has been established by the federal government (OSHA and other safety-related departments), by state and local inspection agencies, and by all kinds of private companies and organizations.

In addition, national, state, and local licensing or certification as an electrical contractor, master electrician, or electrical inspector will require a firm and confident knowledge of the NEC.

With requirements for certification or licensing now mandated in nearly every jurisdiction across the country, the need for Code competence is indispensable.

To meet the great need for information on the NEC, McGraw-Hill has been publishing a handbook on the National Electrical Code since 1932.

Originally developed by Arthur L. Abbott in that year, the Handbook has been carried on in successive editions for each revision of the National Electrical Code.

One final point—words such as “workmanlike” are taken directly from the Code and are intended in a purely generic sense.

Their use is in no way meant to deny the role women already play in the electrical industries or their importance to the field.

Authors of National Electrical Code 2008 Handbook

Brian J. McPartland is an electrical consultant and educator who teaches the nuts and bolts of the National Electrical Code®. He is co-author of McGraw-Hill’s National Electrical Code® Handbook, 25th Edition.

Joseph F. McPartland is an electrical contracting consultant and coauthor of McGraw-Hill’s National Electrical Code® Handbook, 25th Edition.

Frederic P. Hartwell is a working electrician, President of Hartwell Electrical Services, Inc., and has been certified by the International Association of Electrical Inspectors as a Certified Master Electrical Inspector. He is the senior member of NEC® CMP 9. He is co-author of McGraw-Hill’s American Electricians’ Handbook, 15th Edition.

National Electrical Code 2008 Handbook Contents

Chapter 1

  1. Definitions
  2. Requirements for Electrical Installations

Chapter 2

  1. Use and Identification of Grounded Conductors 
  2. Branch Circuits 
  3.  Feeders 
  4. Branch-Circuit, Feeder, and Service Calculations
  5.  Outside Branch Circuits and Feeders 
  6. Services
  7. Overcurrent Protection
  8. Grounding and Bonding
  9. Surge Arresters, Over 1 kV 
  10. Surge-Protective Devices, 1 kV or Less

Chapter 3

  1.  Wiring Methods
  2. Conductors for General Wiring 
  3. Cabinets, Cutout Boxes, and Meter Socket Enclosures 
  4.  Outlet, Device, Pull, and Junction Boxes; Conduit Bodies; Fittings; and Handhole Enclosures 
  5. Armored Cable: Type AC
  6. Flat Cable Assemblies: Type FC 
  7. Flat Conductor Cable: Type FCC 
  8. Integrated Gas Spacer Cable: Type IGS 
  9.  Medium Voltage Cable: Type MV
  10.  Metal-Clad Cable: Type MC 
  11.  Mineral-Insulated, Metal-Sheathed Cable: Type MI 
  12. Nonmetallic-Sheathed Cable: Types NM, NMC, and NMS 
  13.  Power and Control Tray Cable: Type TC 
  14.  Service-Entrance Cable: Types SE and USE 
  15.  Underground Feeder and Branch-Circuit Cable: Type UF 
  16. Intermediate Metal Conduit: Type IMC 
  17.  Rigid Metal Conduit: Type RMC 
  18. Flexible Metal Conduit: Type FMC 
  19. Liquidtight Flexible Metal Conduit: Type LFMC 
  20. Rigid Polyvinyl Chloride Conduit: Type PVC 
  21.  High-Density Polyethylene Conduit: Type HDPE Conduit 
  22. Nonmetallic Underground Conduit with Conductors: Type NUCC 
  23. Reinforced Thermosetting Resin Conduit: Type RTRC 
  24. Liquidtight Flexible Nonmetallic Conduit: Type LFNC 
  25. Electrical Metallic Tubing: Type EMT
  26.  Flexible Metallic Tubing: Type FMT
  27. Electrical Nonmetallic Tubing: Type ENT 
  28. Auxiliary Gutters 
  29. Busways 
  30. Cable bus 
  31. Cellular Concrete Floor Raceways 
  32. Cellular Metal Floor Raceways
  33.  Metal Wireways 
  34. Nonmetallic Wireways 
  35. Multioutlet Assembly 
  36. Nonmetallic Extensions 
  37.  Strut-Type Channel Raceway 
  38. Surface Metal Raceways
  39. Surface Nonmetallic Raceways
  40.  Underfloor Raceways
  41. Cable Trays 
  42. Concealed Knob-and-Tube Wiring 
  43.  Messenger-Supported Wiring
  44.  Open Wiring on Insulators

Chapter 4

  1. Flexible Cords and Cables
  2.  Fixture Wires
  3. Switches 
  4. Receptacles, Cord Connectors, and Attachment Plugs (Caps) 
  5. Switchboards and Panelboards 
  6. Industrial Control Panels 
  7.  Luminaires, Lampholders, and Lamps 
  8.  Lighting Systems Operating at 30 V or Less 
  9.  Appliances 
  10.  Fixed Electric Space-Heating Equipment 
  11. Fixed Outdoor Electric Deicing and Snow-Melting Equipment 
  12.  Fixed Electric Heating Equipment for Pipelines and Vessels
  13.  Motors, Motor Circuits, and Controllers 
  14.  Air-Conditioning and Refrigerating Equipment 
  15.  Generators 
  16. Transformers and Transformer Vaults (Including Secondary Ties) 
  17.  Capacitors 
  18.  Resistors and Reactors
  19. Storage Batteries 
  20. Equipment Over 600 Volts, Nominal 

Chapter 5

  1. Hazardous (Classified) Locations, Classes I, II, and III, Divisions 1 and 2 
  2. Class I Locations 
  3. Class II Locations 
  4. Class III Locations 
  5.  Intrinsically Safe Systems
  6.  Class I, Zone 0, 1, and 2 Locations 
  7.  Zone 20, 21, 22 Locations for Combustible Dusts or Ignitible Fibers/Flyings 
  8. Hazardous (Classified) Locations—Specific 
  9. Commercial Garages, Repair and Storage
  10. Aircraft Hangars 
  11. Motor Fuel Dispensing Facilities 
  12. Bulk Storage Plants 
  13.  Spray Application, Dipping, and Coating Processes 
  14. Health Care Facilities 
  15. Assembly Occupancies 
  16. Theaters, Audience Areas of Motion Picture and Television Studios, Performance Areas, and Similar Locations 
  17.  Control Systems for Permanent Amusement Attractions 
  18. Carnivals, Circuses, Fairs, and Similar Events 
  19. Motion Picture and Television Studios and Similar Locations 
  20.  Motion Picture Projection Rooms
  21.  Manufactured Buildings 
  22. Agricultural Buildings 
  23.  Mobile Homes, Manufactured Homes, and Mobile Home Parks
  24.  Recreational Vehicles and Recreational Vehicle Parks 
  25.  Park Trailers 
  26.  Floating Buildings 
  27. Marinas and Boatyards 
  28.  Temporary Installations

Chapter 6

  1.  Electric Signs and Outline Lighting 
  2. Manufactured Wiring Systems 
  3. Office Furnishings (Consisting of Lighting Accessories and Wired Partitions)
  4.  Cranes and Hoists 
  5.  Elevators, Dumbwaiters, Escalators, Moving Walks, Platform Lifts, and Stairway Chair Lifts 
  6.  Electrical Vehicle Charging Systems 
  7. Electrified Truck Parking Spaces
  8.  Electric Welders
  9. Audio Signal Processing, Amplification, and Reproduction
  10. Equipment 
  11.  Information Technology Equipment 
  12. Sensitive Electronic Equipment 
  13. Pipe Organs 
  14.  X-Ray Equipment
  15. Induction and Dielectric Heating Equipment
  16.  Electrolytic Cells 
  17. Electroplating 
  18. Industrial Machinery 
  19. Electrically Driven or Controlled Irrigation Machines 
  20. Swimming Pools, Fountains, and Similar Installations 
  21. Natural and Artificially Made Bodies of Water 
  22.  Integrated Electrical Systems 
  23. Solar Photovoltaic Systems 
  24.  Fuel Cell Systems 
  25.  Fire Pumps 

Chapter 7

  1.  Emergency Systems 
  2.  Legally Required Standby Systems 
  3. Optional Standby Systems 
  4. Interconnected Electric Power Production Sources 
  5. Critical Operations Power Systems (COPS) 
  6. Circuits and Equipment Operating at less than 50 Volts 
  7. Class 1, Class 2, and Class 3 Remote-Control, Signaling, and Power-Limited Circuits
  8.  Instrumentation Tray Cable: Type ITC 
  9.  Fire Alarm Systems 
  10.  Optical Fiber Cables and Raceways
  11.  Closed-Loop and Programmed Power Distribution (Deleted)

Chapter 8

  1. Communications Circuits
  2.  Radio and Television Equipment 
  3. Community Antenna Television and Radio Distribution Systems
  4.  Network-Powered Broadband Communications Systems 

Chapter 9

  1. Tables 
  2. Annex A. Product Safety Standards
  3. Annex B. Application Information for Ampacity Calculation 
  4. Annex C. Conduit and Tubing Fill Tables for Conductors and Fixture
  5. Wires of the Same Size 
  6. Annex D. Examples 
  7. Annex E. Types of Construction 
  8. Annex F. Availability and Reliability for Operations Power Systems; and Development and Implementation of Functional
  9. Performance Tests (FPTS) for Critical Operations
  10. Power Systems 
  11. Annex G. Supervisory Control and Data Acquisition (SCADA)
  12. Annex H. Administration and Enforcement


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