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  1. You can see the National Electrical Code is laid it out in Articles and Chapters. Each Chapter contains related Articles. When making your way through the Code, think of the related topics you need to consider, then go to the Chapter that contains those topics. Inside that Chapter, you merely need to find the Article that addresses your topic.National Electrical Code,National Electrical Code Quiz,National Electrical Code Watch,National Electrical Code Tips

  2. Article 90 is the introduction. It lays the foundation for understanding the National Electrical Code's scope and purpose, and where it fits into your work.National Electrical Code,National Electrical Code Quiz,National Electrical Code Watch,National Electrical Code Tips

  3. Chapter 1, Article 100 covers definitions. Did you know Code experts often resolve National Electrical Code misunderstandings by simply using excerpts from Article 100? Become familiar with this Chapter, and you'll be ahead of the game. Try it!National Electrical Code,National Electrical Code Quiz,National Electrical Code Watch,National Electrical Code Tips

  4. Chapter 2 covers wiring and protection, as well as grounding. Article 250 is "the grounding chapter." Article 210 covers branch circuits, Article 215 covers feeders, Article 220 covers calculations, Article 230 covers services—do you see the pattern, here?National Electrical Code,National Electrical Code Quiz,National Electrical Code Watch,National Electrical Code Tips

  5. Chapters 2, 3, and 4 are where the typical electrician needs to focus--especially if studying for a National Electrical Code exam.National Electrical Code,National Electrical Code Quiz,National Electrical Code Watch,National Electrical Code Tips

  6. Chapters 5, 6, 7 and 8 apply to nontypical applications, or specialized areas of electrical work. You don't need to study these for a National Electrical Code exam.National Electrical Code,National Electrical Code Quiz,National Electrical Code Watch,National Electrical Code Tips

  7. Chapter 9 has your tables and examples. Spend some time becoming familiar with these and how to apply them!National Electrical Code,National Electrical Code Quiz,National Electrical Code Watch,National Electrical Code Tips

  8. If you are doing non-specialized work, make a point of studying Chapters 1, 2, 3, and 4. Browse Chapter 9 to become familiar with what is in it, and work through the examples.National Electrical Code,National Electrical Code Quiz,National Electrical Code Watch,National Electrical Code Tips

  9. For determining voltage drop and wiring sizes, work with Chapter 9, Tables 8 and 9--mostly Table 9 for a National Electrical Code exam.National Electrical Code,National Electrical Code Quiz,National Electrical Code Watch,National Electrical Code Tips

  10. To make best use of the Tables in Chapter 9, read the "Notes to Tables" before working with the Tables. It’s amazing how many people end up going to these notes after hours of misusing the Tables.National Electrical Code,National Electrical Code Quiz,National Electrical Code Watch,National Electrical Code Tips

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How the NEC is arranged

  1. The first four Chapters of the NEC apply to all installations.
  2. Article 90 precedes Chapter One, and establishes the authority of the NEC.
  3. Article 80 follows the body of the NEC; it exists as Annex H. It provides the requirements for administration.
  4. Chapters 5, 6, and 7 are the "special" chapters, covering special: occupancies, equipment, and conditions (in that order).
  5. Chapter 8 provides the requirements for communications systems.
  6. Chapter 9 provides tables.
  7. The appendices provide mostly reference information.
  8. Appendix D contains examples that every NEC user should study.

 

 

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