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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Littelfuse Shock-Block Class C and D GFCI

I recently taught a 2014 National Electrical Code (NEC) class at an industrial facility in Fort Wayne, Ind., where an attendee asked about special-purpose ground fault circuit interrupters (GFCIs) with trip levels above the normal 4­–6 milliampere (mA) trip threshold level.

There have been countless changes, both in the electrical industry and in the National Electrical Code (NEC), since the first edition in 1897. While a lot has changed, the reason and purpose of the Code have remained constant.

The term “qualified person” has a very broad meaning in a general context. From a simple standpoint, outside of the codes and standards world, it might mean having the qualities, accomplishments, etc., that fit a person for some function, office, or the like.

More on Codes & Standards

 
Wall Space in Dwelling Units, Bonding Metal Water and More

CODE CITATIONS Article 110 Requirements for Electrical Installations Article 210 Branch Circuits Article 250 Grounding Article 310 Conductors for General Wiring Article 314 Outlet, Device, Pull and Junction Boxes; Conduit Bodies; Fittings; and Manholes Article 410 Luminaires (Lighting Fixtures), Lam

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Extra Credit

Owners often contact contractors to install fire alarm systems in existing buildings. And, just as often, the Code does not require these installations. Rather, the building owner simply wants a fire alarm system installed for his or her own peace of mind.

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Branch Circuits: Required Lighting Outlets, Part VIII

Article 210 specifies provisions for all branch circuits except for branch circuits supplying only motor loads. Article 430 contains motor load requirements. Branch circuits with combination loads (motor and non-motor) must be installed in accordance with Articles 210 and 430.

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Standby Systems, Part II

This is the conclusion of a two-part article that began in the November issue. This part provides important information for listing and National Electrical Code requirements for installations of emergency, legally required standby and optional standby systems.

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Disconnect for Hot Tubs, GFCIs in Kitchens and Mor

CODE CITATIONS Article 210 Branch Circuits Article 250 Grounding Article 408 Switchboards and Panelboards Article 430 Motors, Motor Circuits and Controllers Article 680 Swimming Pools, Fountains and Similar Installations Volume One of the 2003 edition of the Fire Resistance Directory published by Un

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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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Standby Systems, Part I

This is the first of two parts about installing emergency, legally required and/or optional standby systems. This first part will cover the basics of the three systems and the second part will cover requirements for transfer equipment.

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