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.
 Electrical systems expansion


Historically, the National Electrical Code (NEC) has required much of the electrical equipment, wiring methods and other electrical parts used in the electrical industry to be listed.

Section 110.26 of the National Electrical Code (NEC) requires specific minimums for working space around electrical equipment. Section 110.26 is divided into six subsections, and some of them contain even more subsections.


Every three years, the National Electrical Code (NEC) is revised and often expanded. As the 2017 NEC development cycle comes to a close, the final stages of the process unfold.

More on Codes & Standards

 
Pond Wiring, GFCI Receptacles and More

Article 110—Requirements for Electrical Installations; Article 210—Branch Circuits; Article 250—Grounding and Bonding; Article 314—Outlet, Device, Pull, and Junction Boxes; Conduit Bodies; Fittings; and Handhole Enclosures; Article 682—Natural and Artificially Made Bodies of Water; Article 695—Fire


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Establishing an Electrically Safe Work Condition

NFPA 70E, Standard for Electrical Safety in the Workplace defines safe work practices for electrical construction and maintenance; the primary message of NFPA 70E is to turn off the power before working on electrical equipment.


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Article 585: More Than Meets the Eye

The article could improve uptime of critical loads:


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2008 National Electrical Code Revision Process Advances

The National Electrical Code Committee held two weeks of meetings last month in Redondo Beach, California; the purpose was to review and vote on nearly 2,500 public comments on proposals to revise the 2005 National Electrical Code (NEC).


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Killer Heat

Last month's column discussed getting the most out your conductor ampacity, but the article did not really report the importance that wire terminations have on the final ampere rating of a conductor; many designers and electricians forget to consider the rating of the conductor versus the ability of


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