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.
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I recently was asked to review a series of emails from a colleague about equipment requirements for ready access or, as defined in Article 100 and used within text in the National Electrical Code (NEC), as “readily accessible.” This phrase is used to describe the location of circuit breakers, for ex

What does the National Electrical Code (NEC) require when installing isolated/insulated grounding-type receptacles and auxiliary grounding electrodes?

Most of Article 240 in the National Electrical Code (NEC) provides general requirements for overcurrent protection and overcurrent protective devices not more than 1,000 volts (V), nominal. As a general rule, the overcurrent device rating shall not exceed the ampacity of a conductor.

More on Codes & Standards

 
Certifiably Good

Many of today’s electrical contractors are constantly trying to expand their offerings. In an effort to increase their marketability, these contractors are seeking certifications to broaden their knowledge base.

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Branch Circuits: Required Lighting Outlets, Part VI

210.70(A)(2) Lighting Outlets Required Branch circuit requirements are covered in Article 210 of the National Electrical Code. Part III of Article 210 covers required receptacle outlets and lighting outlets.

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Lamps in the Damp

Article 410 in the National Electrical Code (NEC) covers the installation of the wiring and the equipment forming the parts of lamps, luminaires (fixtures) and lampholders.

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Branch Circuits: Required Lighting Outlets, Part IV

210.70(A)(2) Lighting Outlets Required Requirements specifying wall switch-controlled lighting outlets (or receptacles) are covered in 210.70. This section contains three subsections: dwelling units, guest rooms and other than dwelling units.

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Receptacles in Wall Spaces, Insulating Bushings an

CODE CITATIONS Article 210 Branch Circuits Article 220 Branch Circuits, Feeder and Service Calculations Article 250 Grounding Article 320 Armored Cable Article 410 Luminaires (Lighting Fixtures), Lampholders and Lamps Article 430 Motors, Motor Circuits and Controllers Volume 1 of the Fire Resistance

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New GFCI Technology Issues

The new type of GFCI employing the latest technology comes with a caveat that must be brought to our attention. Do not get the impression that if this type of receptacle is wired incorrectly that a person cannot be killed or injured.

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Branch Circuits: Required Lighting Outlets, Part III

210.70(A)(1) Lighting Outlets Required Lighting outlet requirements are covered in the last section of Article 210. Branch circuits supplying lighting outlets must be installed in accordance with the provisions in 210.70(A) through (C).

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