Codes & Standards

 

Essential to the work of the electrical contractor is knowledge of the National Electrical Code, the National Electrical Installation Standards and additional standards and codes administered by the National Fire Protection Association, the Occupational Safety and Health Administration and others. Here is a list of all our articles on codes and standards listed chronologically by issue date. 

Jim Dollard has an extensive background in codes and standards. If you have a query about the National Electrical Code (NEC), Jim will help you solve it. Questions can be sent to codefaqs@gmail.com. Answers are based on the 2014 NEC.
 Tape over device terminal screws?


Storage batteries are used for many different types of electrical equipment throughout the National Electrical Code (NEC). The phrase “storage batteries” occurs in 13 locations in the NEC index. In addition, Article 480 is devoted to the installation requirements for storage batteries.


All of the first eight chapters in the National Electrical Code (NEC) contain at least five articles except one. Chapter 1, General, contains only two articles. The first, Article 100, contains definitions essential to the proper application of the NEC.

When incorporating larger feeders or branch circuits into equipment, many commercial and industrial electrical designs require use of parallel arrangements.

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Article 210 - Branch Circuits

For tables, please see refer to Electrical Contractor magazine. 210.8(A) Dwelling Units


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Generators, Fire Pumps, General Wiring, and More

CODE CITATIONS Article 100—Definitions Article 225—Outside Branch Circuits and Feeders Article 230—Services Article 250—Grounding Article 310—Conductors for General Wiring Article 320—Armored Cable: Type AC Article 430—Motors, Motor Circuits, and Controllers Article 445—Generators Article 518—Places


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Power Supply for a Fire Pump, Stranded Conductors on Receptacles, Kitchen Light Switches, and More

CODE CITATIONS Article 110—Requirements for Electrical Installations Article 210—Branch Circuits Article 230—Services Article 250—Grounding Article 408—Switchboards and Panelboards Article 430—Motors, Motor Circuits, and Controllers Article 695—Fire Pumps


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2002 NEC Adds High-voltage Requirements

The electrical industry is rapidly changing. Utility companies are selling high-voltage equipment, including transformers and distribution equipment, to end-users as part of divestiture agreements.


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Article 210 - Branch Circuits

Please see January issue of Electrical Contracor for referenced figures. 210.8(A) Dwelling Units


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Electrical Installation Requirements, Overcurrent Protection, Lighting Fixtures, and More

CODE CITATIONS Article 110—Requirements for Electrical Installations Article 230—Services Article 240—Overcurrent Protection Article 310—Conductors for General Wiring Article 410—Lighting Fixtures, Lampholders, Lamps, and Receptacles Article 424—Fixed Electric Space-Heating Equipment


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