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. Send questions to codefaqs@gmail.com. Answers are based on the 2017 NEC.
 Readily accessible


Designing and installing specialized electrical equipment with the intent of reducing the incident energy of an arcing fault was first introduced in 240.87 of the 2011 National Electrical Code (NEC) and was further refined in the 2014 NEC.

Thousands of public inputs (formerly proposals) are usually submitted for revising the next edition of the National Electrical Code (NEC). With some editions, there are global, Code-wide changes.

During the mid-1990s, the National Electrical Contractors Association (NECA) made a major effort to develop electrical installation standards for the electrical construction industry. The initial work included the creation of NECA 1, Standard for Good Workmanship in Electrical Construction.

More on Codes & Standards

 
USE by SE

Article 338 of the National Electrical Code (NEC) covers the use, installation and construction specifications of service-entrance (SE) cable. Electricians commonly use these cables for service conductors and for feeders and branch circuits in residential and small commercial installations.


READ MORE
 
Which Size Box?

An electrician asked me a very interesting question concerning the sizing of a junction or pull box and the difference between the two. They are basically the same. Electricians use junction and pull boxes as access points for pulling and feeding conductors through raceway systems.


READ MORE
 
Study Shines New Light on Old Problems Behind the Walls

In the decades since the U.S. Consumer Product Safety Commission determined that electrical fires are disproportionately frequent in homes more than 40 years old, a generation of houses has aged into the danger zone.


READ MORE
 
Adoption of 2008 National Electrical Code Gains Momentum

Public officials in several states have embraced new safety standards, voting to adopt the 2008 National Electrical Code (NEC) with minimal or no amendments, and America’s heartland has taken the lead on acceptance.


READ MORE
 
Keep It Covered

In many states, laws exist that allow the electrical contractor to design fire alarm systems for projects he is selling and installing for a customer.


READ MORE
 
Color of conductors, Taper-Resistant Receptacles and Mor

Article 210 Branch Circuits; Article 250 Grounding and Bonding; Article 300 Wiring Methods; Article 310 Conductors for General Wiring; Article 408 Switchboards and Panelboards; Article 430 Motors, Motor Circuits, and Controllers Grounding isolated EGCs


READ MORE

Pages

X