national electrical code


What's Wrong Here? 

Oct 24, 2005, By Joe Tedesco

Hint: Cool splice for an air conditioner, huh?...

Code Q&A 

Oct 24, 2005, By Mike Holt

Q. How close can I run underground service conductors in a raceway to an outdoor pool?...

Code Quiz 

Oct 24, 2005, By Steven Owen

When grounding branch circuits – with respect to grounding requirements for receptacles and fixed equipment – in patient care areas of hospitals (critical care or general care areas), which of the following statements is correct?...

Code Quiz 

Oct 7, 2005, By Steven Owen

A small strip mall consists of the following 10 tenants: a pharmacy; a 24-hour emergency medical treatment center, which provides a limited amount of critical care; and eight different retail shops. The common service disconnecting means for the entire group of tenants is equipped with ground-fault protection (one service and 10 feeders)...

Code Q&A 

Oct 7, 2005, By Mike Holt

What's Wrong Here? 

Oct 7, 2005, By Joe Tedesco

Hint: Was there ever a device box?...

Grounding vs Bonding - Part 10 of 12 

Oct 1, 2005, By Mike Holt, NEC Consultant

Does the NEC require you to ground piping systems and structural steel? Be careful how you answer this question....

Behind the 2005 NEC Changes: Art. 409 Industrial Control Panels 

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

Covering industrial control panels intended for general use and operating at 600V or less, including those without an appropriate third-party listing,...

Speak Out - Finding AFCI Common Ground 

Sep 23, 2005, 

Code Q&A 

Sep 23, 2005, By Mike Holt

Code Quiz 

Sep 23, 2005, By Steven Owen

When installing a Combustible Gas Detection System (in industrial establishments with restricted public access, and using qualified personnel to service the installation) as a protection technique in a Class I hazardous (classified) location of Article 501, or a Zone location of Article 505, all but which of the following items shall be documented?...

What's Wrong Here? 

Sep 23, 2005, By Joe Tedesco

Hint: This green light means “stop.”...

Code Quiz 

Sep 8, 2005, By Steven Owen

Code Q&A 

Sep 8, 2005, By Mike Holt

Stumped by the Code? 

Sep 1, 2005, By Mike Holt, NEC Consultant

All questions and answers are based on the 2005 NEC. Q. Where are hospital-grade receptacles required? A. Receptacles for inpatient sleeping beds or procedure...

Illustrated Catastrophes 

Sep 1, 2005, 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...

Grounding vs Bonding - Part 9 of 12 

Sep 1, 2005, By Mike Holt, NEC Consultant

Do you know when an isolated ground is appropriate and how to properly install it?...

IEEE makes its articles easier to find online 

Aug 24, 2005, 

New Yahoo service helps users search the “deep Web”...

What's Wrong Here? 

Aug 23, 2005, By Joe Tedesco

Hint: Cords and cables shall not be used as a substitute...

Code Q&A 

Aug 23, 2005, By Mike Holt

Previous | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | Next

what's wrong here?

What’s Wrong Here?

Jul 29, 2011 5:56 PM

What's Wrong Here?

Jul 21, 2011 3:05 PM

What's Wrong Here?

Jul 7, 2011 10:13 AM

View all What's Wrong Here?

product spotlight

Converter

Mar 6, 2012 8:26 AM

Converter

This redesigned full-power converter features fault ride-through (FRT) capability ...

View all 2012 Product Spotlights

Free Product Info

Our Product Information site is the ultimate online resource for products and services offered by Advertisers featured in our Magazine. This service is provided as a quick and easy way to request Product Information online. Get FREE product information now.

Recent Comments

More...


Social Media

More ways to stay informed...

follow us on twitter

Find us on Facebook

EC&M TV

Arlington CP9000

Arlington’s new 9” diameter ceiling cover plate is the neatest way to cover unused “high hat” cans. With no tools needed, installation couldn’t be faster!...

Arlington Gangable Boxes

Designed for new or retrofit applications, these snap-together gangable plastic boxes eliminate the need to construct a multiple-gang steel box out of several individual ones...

Listen
Sizing Gen-Sets: Facts, Hints, and Good Judgment
Listen

The complexities of today’s commercial or industrial facility, with their equipment environment of linear and nonlinear loads, places a whole new light on sizing engine-generator sets.

Understanding NEC Requirements for Solar Photovoltaic Systems
During this session, Mike Holt will address possible conflicts or confusing NEC requirements, provide tips on proper electrical installation techniques, and discuss the dangers related to improper installations. View this On Demand Webinar!

Top Code Changes: 2011 NEC
EC&M has partnered with NEC expert Mike Holt to present a one hour Webinar covering the top 2011 NEC Code Changes. This event will be broadcast live on the Web with streaming audio and PowerPoint slides allowing the audience to have real-time interaction with the guest speaker, Mike Holt. View this On Demand Webinar!

resources

product info icon

product info

tradeshow icon

tradeshow

research icon

research

industry links

industry links

rss icon

rss

Browse Back Issues

Browse Back Issues