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July 16, 2009 A Penton Media Publication Vol. VII No. 14




CONTENTS
NEC Report on Proposals Now Available

Pending Code Change Item for 2011 NEC

What's Wrong Here?

Code Q&A

Code Quiz

Indiana Rejects AFCIs and Tamper-Resistant Receptacles



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    Change Proposals
    NEC Report on Proposals Now Available
    A printed version of the NEC Committee Report on Proposals for the latest revision cycle was made available on Tuesday, July 14. The document contains the proposed amendments for the 2011 version of the NEC. The document is open for public review and comment through October 23, 2009. You can download an electronic version of the report via the NFPA Web site.

    All interested parties are urged to read this report and submit their comments on the forms provided in the report. Each comment received on or before the closing date of the comment period will be considered and acted upon by the NEC Code Committee. The results of the committee action 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.


    Pending Code Change Item for 2011 NEC
    As noted in the NEC Committee Report on Proposals, 2010 Annual Revision Cycle, Code-Making Panel 14 has voted to accept a Code change submitted by Eliana Beattie, ISA (Log #4449 NEC-P14). Beattie recommended adding a new Fine Print Note (FPN) to 505.9(C)(2), which should help eliminate confusion on the use of equipment in hazardous (classified) locations.

    The new FPN would read as follows: "Equipment installed outside a Class I, Zone 0, electrically connected to equipment located inside Class I, Zone 0 may be marked Class I, Zone 0/1. The "/" indicates that equipment contains a separation element and can be installed at the boundary between a Class I, Zone 0 and a Class I, Zone 1 location. See ANSI/ISA-60079-26, Electrical Apparatus for Use in Class I, Zone 0 Hazardous (Classified) Locations."


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    Code Challenge
    What's Wrong Here?
    By Joe Tedesco
    Think you know how this installation violates the NEC?

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

    Hint: Missing in action


    Code Q&A
    By Mike Holt
    Q. Can we install a 3-wire feeder (no equipment ground) to a pool house and bond the neutral and ground at the new panel?

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


    Code Quiz
    By Steven Owen
    When are two or more control circuits for permanent amusement attractions permitted to occupy the same cable, cable tray, enclosure, or raceway, without regard to whether the individual circuits are alternating current or direct current?

    1. Never.
    2. Any time, provided all conductors are insulated for the maximum voltage of any conductor in the cable, cable tray, enclosure, or raceway. [522.24(A)]
    3. Only in limited circumstances, when meeting the requirements of 725.133.
    4. Only when the control circuit conductors or cables are of the shielded type.

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


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    Code News Update
    Indiana Rejects AFCIs and Tamper-Resistant Receptacles
    According to a recent Code alert issued on June 5, 2009 by the National Electrical Manufacturers Association (NEMA), the Indiana Fire Prevention and Building Safety Commission voted to adopt the 2008 version of the NEC minus all of the AFCI and tamper-resistant receptacle requirements. The news item went on to say the state continues to hold the distinction as the only state in the country that does not require any arc fault protection in residential construction -- and will also be the first state to adopt the 2008 NEC without tamper-resistant receptacle requirements.


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