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. 

Available short-circuit current requirements were either added or changed in a number of locations in the 2017 National Electrical Code (NEC).

The National Electrical Code (NEC) is full of rules and regulations that are intended to make electricity use safe. Consider the rules for sizing conductors and overcurrent protection.

Each new edition of the National Electrical Code (NEC) brings change typically driven by the desire for electrical safety improvements for people and property. The Code provides the minimum requirements for safe electrical installations.

Every three years, the National Electrical Code (NEC) is updated to reflect the newest installation practices utilized by the electrical industry, bringing about hundreds of revisions and new rules to the code.After a successful webinar series in the fall of 2016, we're revisiting the topic in a sin

More on Codes & Standards

 
General Installation Requirements, Part XXVI

Article 110 in the National Electrical Code (NEC) contains general requirements for electrical installations. Topics include examination and approval, installation and use, and access to and spaces about electrical conductors and equipment. This article is divided into five parts.



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2017 NEC: Special Occupancies—Significant Changes in the 2017 NEC, Part 8


This article provides a review of the significant changes to the rules for healthcare facilities contained in Chapter 5, Special Occupancies, in the 2017 edition of the National Electrical Code (NEC).
 Visit www.ecmag.com/2017-NEC-significant-changes for this full series.



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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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Type MC Cable Support, Ground Rods 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.
 Supporting Type MC cable



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