national electrical code

Code Q&A

Dec 11, 2006, By Mike Holt

Code Quiz

Nov 27, 2006, By Steven Owen

Code Q&A

Nov 27, 2006, By Mike Holt

Code Quiz

Nov 13, 2006, By Steven Owen

Code Q&A

Nov 13, 2006, By Mike Holt

AFCIs on the Brink of a Home Invasion

Nov 1, 2006, By Beck Ireland, Staff Writer

If proposal #2-142 of the National Electric Code (NEC) passes, it will require combination-type arc-fault circuit interrupter (AFCI) protection for all...

Fire Alarm System Facts

Nov 1, 2006, By Mike Holt, NEC Consultant

Article 760 tells us how to install wiring and equipment for fire alarm systems, including all circuits these devices control and provide power to. What...

Top 50 NEC Rules

Oct 25, 2006, By Mike Holt

Code Quiz

Oct 25, 2006, By Steven Owen

Code Q&A

Oct 25, 2006, By Mike Holt

Code Quiz

Oct 11, 2006, By Steven Owen

Grounding and Bonding of Separately Derived AC Systems

Oct 11, 2006, By Mike Holt

Code Q&A

Oct 11, 2006, By Mike Holt

Article 725: Around the Circuit

Oct 1, 2006, By Mike Holt, NEC Consultant

In last month's Code Basics article, starting on page 56 of the September issue, we spent most of our time discussing Class 1 circuits. Now, it's time...

Illustrated Catastrophes

Oct 1, 2006, By Joe Tedesco, NEC Columnist

As usual, never consider the following commentary associated with these photos as a formal interpretation of the National Electrical Code (NEC). Without...

Code Quiz

Sep 25, 2006, By Steven Owen

Code Q&A

Sep 25, 2006, By Mike Holt

Top 50 NEC Rules

Sep 25, 2006, By Mike Holt

Grounding & Bonding Requirements

Sep 8, 2006, By Mike Holt

You basically perform work on two types of systems: solidly grounded or ungrounded. The general requirements for grounding and bonding these systems can be summarized as follows...