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 2017 NEC.
 Supporting Type MC cable


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.

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.


This article reviews changes in Chapter 4, Equipment for General Use, in the 2017 edition of the National Electrical Code (NEC).
 422.16(B)(2) Built-in Dishwashers and Trash Compactors


More on Codes & Standards

 
Portable Swimming Pools, Outdoor Cable and More

Article 100—Definitions; Article 210—Branch Circuits; Article 250—Grounding and Bonding; Article 334—Nonmetallic-Sheathed Cable: Types NM, NMC, and NMS; Article 404—Switches; Article 517—Health Care Facilities; Article 680 Swimming Pools, Fountains, and Similar Installations; Article 700—Emergency S


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Can I Really Do That?

There has been a substantial controversy raging throughout the electrical industry for a considerable time now, and hopefully, changes made for the 2008 National Electrical Code (NEC) will finally resolve this debate.


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Caution: Hazards Ahead

Recently, an electrical contractor and his foreman visited my office to talk about electrical equipment installed in hazardous locations, specifically about explosion-proof, intrinsically safe and nonincendive equipment as well as purged and pressurized systems.


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Developing 'World Class' Fire Alarm Technicians

Almost every owner or manager of a contracting firm brings up the challenging problem of finding and keeping qualified technicians. Some of the old-timers complain they can’t seem to figure out what motivates the younger technicians entering today’s marketplace.


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Function Follows Form

Members of a workshop I instructed on the National Electrical Code (NEC) asked me how to determine the ampacities of conductors based on how they are used in the electrical system.


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