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. 

Ground-fault protection of equipment (GFPE) provides protection from devastating arcing events and destructive arcing burn-downs. National Electrical Code (NEC) sections 215.10, 230.95, 240.13 and 517.17 provide GFPE requirements, and Article 100 defines it.


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.
 NFPA 99 and Article 700


Terminology is the vocabulary of technical terms and usages appropriate to a particular trade, science or art. Does it matter what we call something in the National Electrical Code (NEC)?

Article 110 in the National Electrical Code (NEC), covers general requirements for the examination and approval, installation and use, access to and spaces about electrical conductors and equipment; enclosures intended for personnel entry; and tunnel installations. It contains five parts.


More on Codes & Standards

 
Current Events

This article is a continuation of designing and installing electrical systems rated over 600 volts. Note that specific equipment as well as wiring methods and other items that form a complete high-voltage system are discussed. Selecting switchgear—490.30 through 490.47


READ MORE
 
CFLs, Permanent Generators and More

Article 110 Requirements for Electrical Installations; Article 250 Grounding and Bonding; Article 300 Wiring Methods; Article 517 Health Care Facilities; Article 547 Agricultural Buildings; Article 695 Fire Pumps; Some parts of the Guide Information for Electrical Equipment Directory (White Book) 20


READ MORE
 
The Mark of a Good Product

A requirement for short-circuit current rating was added in the 2005 National Electrical Code (NEC) to Section 430.8 covering motor controller marking, to Section 440.4(B) covering controller marking for air conditioning and refrigerating equipment, and to 409.110 covering controller marking for ind


READ MORE
 
A Big Step Forward

Low-voltage contractors who are keeping abreast of developments in their industry know wireless technology is in the process of moving to its next generation of wireless access, which will be defined by the IEEE standard 802.11n.


READ MORE
 
Specify This

Whether they like it or not, electrical contractors are becoming more involved in the completion of design plans and the specification of products than ever before. And this is not just a disciplinary exercise of assuming greater engineering responsibility.


READ MORE
 
By Request

A faithful reader of ELECTRICAL CONTRACTOR asked how to design and install high-voltage feeders according to the 2008 National Electrical Code (NEC). He requested that I write an article pertaining to such an installation.


READ MORE

Pages

X