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February 4, 2010 A Penton Media Publication Vol. VIII No. 3



CONTENTS
Pending Code Change Item for 2011 NEC

What's Wrong Here?

Code Q&A

Code Quiz

Electric West 2010



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    Change Proposals
    Pending Code Change Item for 2011 NEC
    As noted in the NEC Committee Report on Proposals, 2010 Annual Revision Cycle, Code-Making Panel 12 has voted to accept a Code change submitted by James W. Carpenter, International Association of Electrical Inspectors (Log #2806 NEC-P12). The recommendation calls for deleting Sec. 665.3, which currently reads as follows:

    "Other Articles. Unless specifically amended by this article, wiring from the source of power to the heating equipment shall comply with Chapters 1 through 4."

    As noted in the substantiation summary, Section 90.3 indicates Chapters 1 - 4 apply generally, and Chapters 5, 6, and 7 supplement or modify the general requirements. The text in 665.3 repeats the requirement previously expressed in 90.3 and serves no additional purpose. It should also be noted that other "Special" articles do not include a similar requirement. Inconsistent application of the text could also lead to confusion.

    You can download an electronic version of the report via the NFPA Web site.

    Although the comment period is now closed, the results of the committee action on all submitted comments will be published in the NEC Committee Report on Comments, which will be made available to all who request it. The Report on Comments mail date is scheduled for March 29, 2010.


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    Code Challenge
    What's Wrong Here?

    By Brian J. McPartland


    Think you know how this installation violates the NEC?

    Visit EC&M's Web site to see the answer.

    Hint: Field markings


    Code Q&A
    By Mike Holt
    Q. Is there a Code rule that says you cannot store items in an electrical room?

    Visit EC&M's Web site to see the answer.


    Code Quiz
    By Steven Owen
    What is the interrupting rating of a circuit breaker that has no interrupter rating marked on it? This is in reference to circuit breakers not used for supplementary protection.

    1. 5,000A
    2. 10,000A
    3. 42,000A
    4. 65,000A

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


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    Shows and Events





    Electric West 2010

    The Electric West Show, to be held March 16-18, 2009 at the Las Vegas Convention Center, is the perfect place to brush up on the latest NEC topics — and earn continuing education credits in the process. Geared toward electrical contractors, consulting & specifying engineers, electricians, and plant facility personnel, the conference program will offer the following NEC seminars, presented by industry experts such as Mike Holt, Keith Lofland, and Edward Gorginian.
    • Analysis of 2011 NEC Changes
    • Understanding Important NEC Requirements
    • Dwelling Calculations
    • Advanced NEC Calculations
    • Grounding vs. Bonding
    • Swimming Pools and Similar Installations
    For more information, visit our Web site, or click here to register.

    FREE Expo Pass -- Click here to receive your complimentary pass to Electric West, a $55 value!


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