National Electrical Code Flashcards
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Questions and Answers

What are the two basic types of rules in the NEC?

  • Optional rules
  • Discretionary rules
  • Permissive rules (correct)
  • Mandatory rules (correct)
  • Mandatory rules contain the words _____

    Shall or Shall not

    Permissive rules identify _____

    Actions that are allowed but not required

    Permissive rules are indicated by the phrases _____

    <p>Shall be permitted or shall not be required</p> Signup and view all the answers

    What do NEC Chapters 1, 2, 3, and 4 present?

    <p>Rules for the design and installation of electrical systems</p> Signup and view all the answers

    What do NEC Chapters 5, 6, and 7 concern?

    <p>Special occupancies, equipment, and conditions</p> Signup and view all the answers

    What does NEC Chapter 8 cover?

    <p>Communications systems</p> Signup and view all the answers

    What does NEC Chapter 9 contain?

    <p>Tables applicable when referenced by other chapters</p> Signup and view all the answers

    What word or phrase best describes the NEC requirements for the installation of electrical systems?

    <p>Minimum</p> Signup and view all the answers

    Mandatory and permissive rules are defined in ____

    <p>NEC Article 90</p> Signup and view all the answers

    Examples of branch circuit calculations can be found in _____

    <p>NEC Informative Annex D</p> Signup and view all the answers

    Cable trays are covered in ____

    <p>NEC Article 392</p> Signup and view all the answers

    Where in the NEC would you find information on conductors for general wiring?

    <p>NEC Article 310</p> Signup and view all the answers

    Where in the NEC would you find information on switchboards and panelboards?

    <p>NEC Article 408</p> Signup and view all the answers

    Installation procedures for lighting fixtures are provided in ____

    <p>NEC Article 410</p> Signup and view all the answers

    Theaters are covered in_____

    <p>NEC Article 520</p> Signup and view all the answers

    NEC Article 600 covers_____

    <p>Electric signs and outline lighting</p> Signup and view all the answers

    How many chapters form the broad structure of the NEC?

    <p>Nine</p> Signup and view all the answers

    NEC chapter 2 covers _____

    <p>Wiring and protection</p> Signup and view all the answers

    What NEC Article covers electric motors?

    <p>430</p> Signup and view all the answers

    To size grounding conductors, refer to ____

    <p>NEC chapter 2</p> Signup and view all the answers

    Wiring methods are covered in ____

    <p>Chapter 3 of the NEC</p> Signup and view all the answers

    Gas stations are covered in ____

    <p>NEC chapter 5</p> Signup and view all the answers

    Emergency systems are covered in ____

    <p>NEC chapter 7</p> Signup and view all the answers

    Fire alarm systems are covered in ____

    <p>NEC chapter 7</p> Signup and view all the answers

    Definitions are covered in ____

    <p>NEC Article 100, Chapter 1</p> Signup and view all the answers

    X-ray equipment is covered in ____

    <p>NEC Article 660</p> Signup and view all the answers

    Electric signs are covered in ____

    <p>NEC chapter 6</p> Signup and view all the answers

    Study Notes

    NEC Overview

    • Two fundamental types of rules: mandatory and permissive.
    • Mandatory rules must be followed, indicated by "shall" or "shall not."
    • Permissive rules outline allowable actions, indicated by "shall be permitted" or "shall not be required."

    NEC Chapters 1-4

    • Chapters 1 to 4 cover rules for the design and installation of electrical systems applicable to all installations.
    • Chapter 2 specifically addresses wiring and protection.
    • Article 310 provides information on conductors for general wiring.

    NEC Chapters 5-7

    • Chapters 5, 6, and 7 focus on special occupancies, equipment, and conditions, modifying rules from Chapters 1-4.
    • Chapter 5 pertains to gas stations.
    • Chapter 7 covers emergency systems and fire alarm systems.

    NEC Chapters 8-9

    • Chapter 8 deals with communications systems, including telephone and television.
    • Chapter 9 contains tables referenced by other chapters in the NEC.

    Important Articles

    • Article 90 defines mandatory and permissive rules.
    • Article 392 discusses cable trays.
    • Article 408 contains information on switchboards and panelboards.
    • Article 410 outlines installation procedures for lighting fixtures.
    • Article 520 addresses requirements for theaters.
    • Article 600 covers electric signs and outline lighting.
    • Article 430 is relevant for electric motors.
    • Article 100 provides definitions in Chapter 1.
    • Article 660 specifically covers X-ray equipment.

    General Information

    • The NEC consists of nine chapters.
    • Minimum requirements are established for electrical system installations.
    • Examples of branch circuit calculations are found in Informative Annex D.

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    Test your knowledge of the National Electrical Code (NEC) with these flashcards. Learn about the different types of rules, including mandatory and permissive regulations, and the specific language used in the NEC. Perfect for students and professionals in the electrical field.

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