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

 
All Shook Up

Seismic requirements for electrical installations Concern about earthquakes and their impact on buildings and facility operation is no longer limited to those regions of the United States, such as the West Coast, where seismic activity is common.


READ MORE
 
Do You Know Charlie?

 Get the wit and wisdom of NEC guru Charlie Trout delivered right to your email every day with the NEIS Code Question of the Day. Subscribe online or check out today’s question and yesterday’s answer.    


READ MORE
 
Evolution of AFCIs and the <i>NEC</i>

ARC-FAULT CIRCUIT INTERRUPTERS (AFCIs) first made their appearance in the National Electrical Code (NEC) in 1999, with a mandatory effective date of Jan. 1, 2002. Research—conducted by Underwriters Laboratories Inc. (UL) for the U.S.


READ MORE
 
Branch-Circuit, Feeder and Service Calculations, Part VI

220.14 Other Loads—All Occupancies Load calculation requirements are in Article 220 of the National Electrical Code (NEC). This article provides requirements for calculating branch-circuit, feeder and service loads. Article 220 is divided into five parts.


READ MORE
 
Significant Issues

Every new National Electric Code (NEC) cycle brings issues of national importance to the forefront.


READ MORE
 
From Installer to Specifier

It’s hard to believe that electrical contractors still carry the “installer of product” stigma—especially when an ELECTRICAL CONTRACTOR report indicates that design/build projects account for 46 percent of contractor revenue.


READ MORE

Pages

X