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. 

Comments
Connecting The Grounding Electrode 
Conductor, Protecting Copper And More

by
Charlie Trout
|
May 2013

If you have a problem related to the National Electrical Code (NEC), are experiencing difficulty in understanding a Code requirement, or are wondering why or if such a requirement exists, ask Charlie, and he will let the Code decide. Questions can be sent to codefaqs@earthlink.net.

Code FAQs, Grounding, Circuit Protection, Overcurrent Protection, Branch-Circuit
Comments
The Best Is Yet To Come! IEEE 1584 Update
by
Jim Phillips
|
May 2013

A lot has happened since 2002 when IEEE 1584–IEEE Guide for Arc-Flash Hazard Calculations was first published by the Institute of Electrical and Electronics Engineers.

Codes, Standards, IEEE 1584
Comments
In The Drink

by
Mark C. Ode
|
May 2013

In the 2011 and previous editions of the National Electrical Code (NEC), installing low-voltage lighting in close proximity to the edge of a swimming pool was a Code violation, yet almost every backyard swimming pool with a landscaped yard has low-voltage lighting too close to the pool’s edge.

Code Applications, Low Voltage, Lighting
Comments
Sizing Conductors, Part XXIV

by
Charles R. Miller
|
May 2013

The overcurrent device rating is a key factor when determining the correct size conductor. Article 240 in the National Electrical Code (NEC) provides general requirements for overcurrent protection and overcurrent protective devices.

Code in Focus, Codes, Standards, National Electrical Code, Tap Conductors

More on Codes & Standards

 
To Ground or Not to Ground-That Is the Question
July 2000
| under

If there is one common thread throughout the electrical industry, it seems to be centered on grounding and bonding. Article 250 provides many of the requirements for grounding and bonding but is still difficult to understand.

READ MORE
 
Outlet, Device, Pull and Junction Boxes, Conduit Bodies, and Fittings: Article 370-Box Fill Calculations, Part II
July 2000
| under

370-16(a) Box Volume Calculations

READ MORE
 
CODE Q &A
July 2000
| under

CODE CITATIONS: Article 100-Definitions; Article 110-Requirements for Electrical Installations; Article 210-Branch Circuits; Article 220-Branch-Circuit, Feeder, and Service Calculations; Article 373-Cabinets, Cutout Boxes, and Meter Socket Enclosures; Article 400-Flexible Cords and Cables; Article 4

READ MORE
 
Code Comments/Why Change a Good Thing?
June 2000
| under

Prior to and including the 1956 National Electrical Code (NEC) there was a limit of nine conductors in a raceway, except when used for control, stage lighting, elevators, and similar uses.

READ MORE
 
Existing Rules Limit the Number of Conductors within a Box
June 2000
| under

Contrary to popular electrical opinion, designated rules limit the number of conductors allowed within outlet, device, and junction boxes. Unfortunately, all too often, electricians remove junction box covers only to find the box crammed full of conductors.

READ MORE
 
CODE QUESTIONS AND ANSWERS
June 2000
| under

Article 100-Definitions; Article 110-Requirements for Electrical Installations; Article 230-Services; Article 240-Overcurrent Protection; Article 250-Grounding; Article 305-Temporary Wiring; Article 695-Fire Pumps.

READ MORE
 
OVERCURRENT PROTECTION FOR MOTOR INSTALLATIONS: PART ONE
June 2000
| under

This month's column concerns overcurrent protection for conductors in motor and controller circuits and overload protection for motors, subjects that many subscribers to our "Code Question of the Day" online feature have inquired about.

READ MORE

Pages

Check out my new features, videos, products, archives and more
Back To Top