Mobile Friendly    Web Version    Add to Your Safe Sender List    Subscribe to EC&M
March 3, 2011
Vol. IX, No. 5

Advertisement 

   EC&M's CodeWatch
  Today's Headlines
 Vote for the 2011 Product of the Year and Qualify for a Chance to Win $100!
 City of St. Louis Adopts 2011 NEC
 What's Wrong Here?
 Code Q&A
 Code Quiz

Important Notice


Your vote will help us identify the 2011 Platinum, Gold, and Silver Product of the Year award winners. EC&M subscribers, simply review the products from the 2011 EC&M Product of the Year category winners list, and then choose your favorite from the drop-down menu. Three lucky voters will be randomly selected to receive $100.

The voting poll will remain open through 5 p.m. on May 20. Please, only one vote per EC&M subscriber. Any votes received from manufacturers, PR firms, or non-EC&M subscribers will not be counted.

Code News Update


According to a recent Code Alert issued on Feb. 22, 2011 by the National Electrical Manufacturers Association (NEMA), the City of St. Louis, Mo. adopted the 2011 NEC on Feb. 3, 2011 with several amendments. It was noted that the change takes place immediately.

Two of the more interesting amendment items include:

  • When seismic bracing is required by the Building Code on any project, electrical systems shall also be braced in accordance with nationally recognized standards.
  • Continuing education will be needed on the 2011 NEC to renew your license or acquire permits in 2012.
Visit the NEMA website for additional details on this adoption news.

Code Violations

What's Wrong Here?

By Joe Tedesco

Think you know how this installation violates the NEC?

Visit EC&M's website to see the answer.

Hint: Watch where you step.

Code Quandaries

Code Q&A

By Mike Holt

Q. What are the GFCI protection requirements for agricultural buildings wiring?

Visit EC&M's website to see the answer.

Code Challenge

Code Quiz

By Steven Owen

Per 250.190(B), when grounding a 5kV rated service disconnect operating at 4.16kV, what is the minimum size grounding electrode conductor for this service to connect the non-current metal parts of the metal-clad enclosure to ground? Assume the largest service-entrance phase conductor is 350kcmil and the equipment involved is fixed equipment.

  1. 350kcmil aluminum
  2. 3/0 AWG copper
  3. 1/0 AWG copper
  4. 2 AWG copper

Visit EC&M's website for the answer and explanation.

Advertisement
The new Fluke 381 does everything you would expect from a clamp meter, and then lets you remove the display for even more flexibility. Now one technician can do multiple jobs. Clamp the Fluke 381 around a conductor, remove the display and walk across the room to operate controls or remove protective equipment, all while watching real-time readings. www.fluke.com/innovation381

WHITE PAPERS

2011 Electroforecast
Notwithstanding recent lower-than-expected employment numbers and a mid-year stall in the housing market, the general U.S. economy has been showing some signs of recovery since the recession ended in June 2009. However, with its 12- to 24-month lag behind the general economy, non-residential construction is not expected to experience a substantial uptick in 2011. Read the complete 2011 EC&M Electroforecast.

Advertisement
Have a UL White Book but not sure how to use it? Discover why the UL White Book is Part 2 of the NEC and how it will help you avoid "Red Tagged" jobs. Learn at your own pace with our FREE interactive course. Click here to get started now — or to order the latest copy .

ON DEMAND MEDIA

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 is available on demand here.

Advertisement
Cool Electronic Cabinets
EXAIR’s Cabinet Cooler® Systems stop electronic control downtime due to heat, dirt and moisture. They produce 20 degree Fahrenheit air from ordinary compressed air. Thermostat control minimizes air usage. Cabinet Coolers are UL Listed, CE compliant and maintain the NEMA 4, 4X and 12 rating of the enclosure. Visit the website for complete information, including application video.

SUBSCRIBER TOOLS

  Subscribe     Unsubscribe  
  Change email address     Contact Us  
  Archives     Subscribe to EC&M


Advertisement 

About This Newsletter