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January 22, 2009 A Penton Media Publication Vol. VII No. 2

CONTENTS
Article 522
Control Systems for Permanent Amusement Attractions

What's Wrong Here?

Code Q&A

Code Quiz

Electric West 2009



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    Top 2008 Code Changes
    Article 522 Control Systems for Permanent Amusement Attractions
    By Mike Holt
    A new Article was added to address control systems used for permanent amusement attractions. It was created because theme parks bring together a unique combination of rides, show elements, transportation, theaters, other facilities, live shows, and new technologies.

    The new Article covers the installation of control circuit power sources and control circuit conductors for electrical equipment, in or on all structures that are an integral part of a permanent amusement attraction. The Article is divided into three parts:

    • Part I. General
    • Part II. Control Circuits
    • Part III. Control Circuit Wiring Methods


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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: Wet or dry?


    Code Q&A
    By Mike Holt
    Q. In our local high school science lab, receptacles have been installed within 4 in. from the edge of a sink. Is this acceptable per the Code?

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


    Code Quiz
    By Steven Owen
    At an agricultural (farm) site, which one of the following locations does not require ground-fault circuit-interrupter protection for all 125V, single-phase, 15A and 20A general-purpose receptacles?

    1. an accessible receptacle supplying a dedicated load where a GFCI protected receptacle is located within 3 ft of the non-GFCI protected receptacle
    2. areas having an equipotential plane
    3. outdoors
    4. damp or wet locations
    5. dirt confinement areas for livestock

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


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    Shows and Events



    Electric West 2009

    The Electric West Show, to be held March 18-20, 2009 at the Las Vegas Convention Center in conjunction with the Power Quality Reliability Conference, 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, there's something for everyone at the Electric Show. The biggest electrical marketplace in the western United States, this event attracts 250 exhibiting companies and more than 6,000 attendees every year. Here's a preview of some of the NEC seminars planned for next year's event:
    • One- and Two-Family Dwelling Unit Electrical Systems
    • Changes to the 2008 NEC
    • Swimming Pools and Similar Installations (NEC Article 680)
    • Introduction to the 2009 NFPA 70E
    For more information, visit our Web site.

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