Behind the 2005 NEC Changes: 240.86 Series Ratings 

Jan 1, 2005, By Steven Owen, National Code Seminars

When it comes to fuses and circuit breakers, how serious are you about your combination ratings?...

Code Q&A 

Dec 22, 2004, By Mike Holt

Code Quiz 

Dec 22, 2004, By Steven Owen

Code Quiz 

Dec 8, 2004, By Steven Owen

Code Q&A 

Dec 8, 2004, By Mike Holt

What's Wronge Here? 

Dec 8, 2004, By Joe Tedesco

Hint: Although the view in this picture is looking upward, you should be thinking more along the lines of the ground the photographer was standing on....

Understanding The Basics of Wye Transformer Calculations 

Dec 1, 2004, By Mike Holt, NEC Consultant

Add this information to what you know about delta transformers and you may be ready to solve power quality problems...

Illustrated Catastrophes 

Dec 1, 2004, By Joe Tedesco, NEC Columnist

More Code catastrophes...

Code Quandaries 

Dec 1, 2004, By Mike Holt, NEC Consultant

Stumped by the Code?...

Code Q&A 

Nov 23, 2004, By Mike Holt

Code Quiz 

Nov 23, 2004, By Steven Owen

What's Wrong Here? 

Nov 23, 2004, By Joe Tedesco

Hint: Does Art. 314, as related to box size, apply to this motor terminal housing?...

Code Quiz 

Nov 8, 2004, By Steven Owen

Code Q&A 

Nov 8, 2004, By Mike Holt

What's Wrong Here? 

Nov 8, 2004, By Joe Tedesco

Hint: Where's the listed or approved symbol on this extension cord?...

2005 Code Changes 

Nov 1, 2004, By Mike Holt, NEC Consultant, with introduction by EC&M staff

Has it already been three years? For some of you who wait with bated breath for every edition of the National Electrical Code, the 2005 NEC probably couldn't...

Everything You Need to Know About Switches, and More 

Nov 1, 2004, By Mike Holt, NEC Consultant

Just like the receptacle, which was covered in this column last month, switches are a common element in everyday life. You can find them at work, in public,...

The Almighty Code 

Nov 1, 2004, By Michael Eby, Editor-in-Chief

With its 50th edition about to hit the streets, the NEC has now seen more revisions than a lot of electrical industry professionals have celebrated birthdays,...

Code Calculations 

Nov 1, 2004, By Mike Holt, NEC Consultant

Transformer configuration names like and derive from the way the windings are connected inside the transformer. These connections determine the way the...

What's Wrong Here? 

Oct 22, 2004, By Joe Tedesco

Hint: This is a "hot" receptacle in more ways than one....

resources

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