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. 

Article 110 in the National Electrical Code (NEC), covers general requirements for the examination and approval, installation and use, access to and spaces about electrical conductors and equipment; enclosures intended for personnel entry; and tunnel installations. It contains five parts.


Ground-fault protection of equipment (GFPE) provides protection from devastating arcing events and destructive arcing burn-downs. National Electrical Code (NEC) sections 215.10, 230.95, 240.13 and 517.17 provide GFPE requirements, and Article 100 defines it.


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. Send questions to codefaqs@gmail.com. Answers are based on the 2017 NEC.
 NFPA 99 and Article 700


Terminology is the vocabulary of technical terms and usages appropriate to a particular trade, science or art. Does it matter what we call something in the National Electrical Code (NEC)?

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Conductors, Unfinished Basements And More

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 2017 NEC.
 White conductors 
in cable assemblies



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Passing Gas: Air Circulation for Hazardous Locations


For many years, the mystery of area classification has resided with a select group of experts within the electrical, petrochemical and industrial sectors. Many electricians, electrical engineers, fire inspectors and electrical inspectors have remained outside of this group.


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General Installation Requirements, Part XXV

In the 2017 National Electrical code (NEC), there are a few changes in 110.26. The first change is in subsection (A), which is part of a global change for the upper voltage threshold.


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2017 NEC: Chemicals, Fuels And Hazardous Locations—Significant Changes in the 2017 NEC, Part 7


Before we proceed, in part 3 of this series, the change in Section 230.70(A)(4) dealing with service disconnects on one- and two-family dwellings was reversed during the late stages of the development process and never made it into the 2017 National Electrical Code (NEC).


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Out By The Pool: Equipotential Bonding for Pool Perimeters and Parts


In the past few months, I have received emails and phone calls from electrical inspectors and contractors stating there is confusion in their areas concerning swimming pool equipotential bonding. They requested that I clarify the bonding requirements for swimming pools.


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General Installation Requirements, Part XXIV

Thanks to the work of numerous dedicated individuals, there is a 2017 edition of the National Electrical Code (NEC). This 54th version has been available since August. These days, the Code is revised every three years, but the revision cycle has ranged from one to four years.



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2017 NEC: Equipment For General Use—Significant Changes in the 2017 NEC, Part 6


This article reviews changes in Chapter 4, Equipment for General Use, in the 2017 edition of the National Electrical Code (NEC).
 Visit www.ecmag.com/2017-NEC-significant-changes for this full series.
 422.16(B)(2) Built-in Dishwashers and Trash Compactors



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