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July 7, 2011
Vol. IX, No. 13

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   EC&M's CodeWatch
  Today's Headlines
 What's Wrong Here?
 Code Q&A
 Code Quiz
 Understanding NEC Requirements for Solar Photovoltaic Systems
 Top Code Changes: 2011 NEC

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: Bucket brigade

Code Quandaries

Code Q&A

By Mike Holt

Q. I'm confused. Can you please explain the 25-ft feeder tap rule and provide an example?

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

Code Challenge

Code Quiz

By Steven Owen

As addressed in the 2011 edition of the NEC, a 2-ft by 2-ft or 4-ft by 4-ft lay-in type fluorescent luminaire installed in a suspended ceiling shall be supported by which of the following means?

  1. Approved, independent support wires of appropriate strength and material installed on all four corners of the luminaire.
  2. Approved, independent support wires of the appropriate strength and material installed on two opposite corners of the luminaire.
  3. Framing members of ceiling support systems securely fastened to each other and securely fastened to the structure at appropriate intervals.
  4. The NEC does not permit you to add any additional support wires to support these type of luminaires.

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

On Demand Media


EC&M partnered with NEC expert Mike Holt to present a one-hour webinar covering the most important Code requirements for solar PV systems. This event is now available on demand here via the EC&M website.


EC&M partnered with NEC expert Mike Holt to present a one-hour webinar covering the top 2011 NEC Code changes. This event is now available on demand here via the EC&M website.

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