Some of you have completed our Online Continuing Education Courses which include video instruction. For the rest of you we are sending a weekly series of newsletters featuring an instructional page complete with videos.

To view the videos you will need to download the free Real Player Download Real Player plugin for your browser - if you don't already have it. After installing Real Player, you can view the videos by clicking on one of these icons:

  • Click on this icon Hi Res - Cable/DSL [5622Kb] if you have a cable or DSL connection.
  • Click on this iconLow Res - Modem [1695Kb] if you have a Dial-up connection.

Below is the full course page which includes these videos:

Article 90 Low Res - Modem [1695Kb] Hi Res - Cable/DSL [5622Kb]        Page 6 of 10

90.3 Code Arrangement

Section 90.3 explains the arrangement of the Code and it explains that the Code is divided into the introduction and nine chapters.

Chapters 1, 2, 3, and 4 of the NEC apply to all installations and Chapters 5, 6, and 7 apply to special occupancies, special equipment, or other special conditions. Chapters 5, 6 and 7 can supplement or modify the requirements contained in Chapters 1 through 4.

Chapter 8 covers communications systems such as telephone, antenna wiring, and coaxial cables. These systems are not subject to the requirements of Chapters 1–7 except where there is a specific reference in Chapter 8 to a rule in Chapters 1 through 7.

Intent: The editorial change clarifies that communication systems (Chapter 8) are not required to comply with the requirements of Chapters 1 through 7 without using the term “independent.” It was felt that the term “independent” was being misinterpreted to imply that communications circuits are never covered by the Code.

Copyright © 2003 Mike Holt Enterprises,Inc.
1-888-NEC-CODE (1-888-632-2633)