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. 

Grounding methods and requirements for systems operating at more than 1,000 volts (V), such as 5- and 15-kilovolt (kV) systems, differ slightly from those for systems of 1,000V or less. Systems in these voltage ranges are commonly referred to as medium-voltage systems.

GFCI in locker rooms


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.
 GFCI in locker rooms


Those of us who use the National Electrical Code (NEC) on a regular basis and are familiar with the words as well as the intent of the text can often overlook the most obvious interpretations by the rest of the electrical industry.


National Electrical Code (NEC) Article 110 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.

More on Codes & Standards

 
Between Compliance and Violation

A client requested that I inspect a generator installation that was determined to be the cause of a fire. The client’s concern was whether the installation identified as an optional standby system complied with the National Electrical Code (NEC).


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
 
Code Knows Best

An electrical contractor called me with questions pertaining to the terminating of the neutral and equipment-grounding conductor (EGC) at a sub-fed panelboard.


READ MORE
 
IG Receptacles in Patient Care Areas

How many equipment grounding conductors (paths) are required to be installed for a branch circuit supplying patient care areas when the governing body of the healthcare facility specifies isolated grounding (IG) receptacles for specific medical equipment?


READ MORE
 
Receptacles in Motels, Laundry Rooms and More

Article 200 Use and Identification of Grounded Conductors; Article 210 Branch Circuits; Article 430 Motors, Motor Circuits, and Controllers Laundry-room receptacles


READ MORE
 
Adopting the NEC

As the 2008 edition of the National Electrical Code (NEC) nears adoption by jurisdictions across the country and beyond, there are rising concerns about changes and additional new requirements.


READ MORE

Pages

X