January 11, 2006 A Prism Business Media Publication Vol. IV No. 1

Home Holiday Display
Gone Bad

What's Wrong Here?

Code Q&A

Code Quiz

Code Committee Call-Up

About this Newsletter
This twice-a-month
e-newsletter is brought to you from the publisher of EC&M magazine.

CodeWatch will:

  • Let you know what could be changing in the Code®.
  • Help you brush up on your ability to apply the Code®.
  • Test your knowledge of the Code® with a Q&A format.
  • Introduce you to the people who vote on the rule changes.
  • Provide information on upcoming Code® seminars and shows.
  • Give you an opportunity to sound off on Code®-related issues.

    We want to make sure we're providing you with the content you need to better manage your business or enhance your technical skills. E-mail us and let us know what you want to see in future issues of this e-newsletter. We will do our best to address your request in a future issue of CodeWatch.

  • Subscriptions
    To sign up for your free subscription, click here: Subscribe

    To unsubscribe from this newsletter click here: Unsubscribe

    To get this newsletter in a different format (Text, AOL or HTML), or to change your e-mail address, please visit your profile page to change your delivery preferences.

    Back Issues
    Missed an issue? Visit the CodeWatch archive on EC&M's Web site.

    Tell a friend about CodeWatch
    Do you know of someone who'd like to receive CodeWatch? Visit the subscriber site, enter their e-mail address and spread the wealth!

    To find out how to advertise in this newsletter, e-mail David Miller or call him at (312) 840-8497.

    The designations "National Electrical Code” and “NEC” refer to the National Electrical Code®, which is a registered trademark of the National Fire Protection Association.



    Nightmare Installations
    Home Holiday Display
    Gone Bad

    My father-in-law had the largest Christmas light display in our area for years -- one that caused huge traffic jams. It was really cool, but also really dangerous. You see, Dad didn't believe in GFCIs or proper grounding for that matter. He would cut off the ground lug of extension cords and file the larger prong down so he could plug anything into anywhere.

    On the last year of the display, I was sitting in Santa's chair welcoming little ones when I noticed a bright flash to my left. I watched in amazement as a 16-gauge extension cord flashed and burnt brightly all the way back to a rotating doll display some 20 feet away from where I was sitting. It started to ignite some straw we had spread on the ground to simulate snow, but luckily the damp weather turned it all into a smoldering stink.

    At this point we decided that the display, although a really beautiful piece of Americana, should be put to rest and fondly remembered as never having injured anyone or burned down the house!
    Ray Jensen
    Davis, Calif.

    Send your 200-word story to us and it may appear in a future issue of CodeWatch. Authors of stories chosen will receive $25.

    Achieve Your
    Performance Goals

    Anticipate, prevent and troubleshoot motors, electrical and equipment maintenance with fast, accurate non-contact temperature measurements with Fluke infrared thermometers. www.fluke.com/codewatch_temp

    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: Sing along with me. One of these things, doesn't belong here...

    Code Q&A

    By Mike Holt

    Q. I understand the Code allows me to use Type AC cable with an equipment grounding (bonding) conductor for branch circuits serving patient care areas. Can I use Type MC cable with an equipment grounding (bonding) conductor for luminaires located above 7.5 feet in a patient care area?

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

    Code Quiz

    By Steven Owen

    Q. An equipotential plane installed at a catfish farm pond is required for the service equipment installed outdoors (adjacent to the pond), where the service equipment controls equipment is installed in and adjacent to the water. This equipotential plane shall consist of a minimum size ______ copper conductor, installed ________, and extended out a distance of at least ______ in all directions from the equipment.

    A) No. 8 solid / a minimum of 3 inches beneath or embedded in the walk surface / 36 inches
    B) No. 8 stranded / a minimum of 3 inches beneath or embedded in the walk surface / 36 inches
    C) No. 6 solid / 24 inches beneath the service entrance equipment / 42 inches
    D) No. 4 solid / no requirement / 48 inches

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

    Cool Electronic Cabinets
    Low-cost Cabinet Coolers stop electronic control downtime due to heat, dirt and moisture. UL Listed Cabinet Coolers produce 20 degree Fahrenheit air from an ordinary supply of compressed air to cool electrical controls. Thermostat control minimizes air usage. Maintains the NEMA 4, 4X (stainless steel) and 12 rating of the enclosure. Web site offers detailed information, downloadable drawings and PDF literature.

    Code News Update
    Code Committee Call-Up
    Got some extra time on your hands? Looking to put some of your vast knowledge of the electrical field to use? NFPA is looking for new members for several of its committees, including the following:
    • Committee on Electrical Systems Maintenance (special experts excluded). This committee is responsible for NFPA 79, Electrical Inspection Code for Existing Dwellings.
    • Committee on Health Care Facilities -- Electrical Systems (special experts and users excluded). This committee is responsible for chapters in NFPA 99, Standard for Health Care facilities.
    • Committee on Electrical Systems for Manufactured Housing (manufacturer and enforcer excluded). This committee is responsible for chapters in the following documents: NFPA 501, Standard on Manufactured Housing; NFPA 501A, Standard for Fire Safety Criteria for Manufactured Homes Installations, Sites, and Communities; and NFPA 225, Model Manufactured Home Installation Standard.
    • Committee on Static Electricity. This committee is responsible for NFPA 77, Recommended Practice on Static Electricity.
    Anyone interested in serving can download the application form at NFPA's Web site.

    Free Customizable Arc Flash Specification
    ESA, developers of EasyPower power system analysis software, has designed a complimentary Arc Flash Study Performance Specification to assist with arc flash hazard initiatives. Provided in a format which allows for easy modification, this specification will cut weeks off of development time. It is available for download from ESA's website, in addition to other Arc Flash Hazard Resources.
    Offer code: WA0517

    The National Electrical Code Internet Connection, the No. 1 rated Code Web site in the world, offers the following FREE products: Books, Code Quiz, DVDs, Graphics for PowerPoint, Newsletter, Online Training, Posters, Simulated Exams, Software, Video clips, and Videos.

    Visit www.NECcode.com and stay current with important industry issues.

    You are subscribed to this newsletter as <*email*>

    For questions concerning delivery of this newsletter, please contact our Customer Service Department at:

    U.S. Toll Free: (866) 505-7173
    International: (402) 505-7173
    or custserv@newsletter.prismb2b.com

    Prism Business Media
    9800 Metcalf Avenue
    Overland Park, KS 66212

    Copyright 2006, Prism Business Media. All rights reserved. This article is protected by United States copyright and other intellectual property laws and may not be reproduced, rewritten, distributed, re-disseminated, transmitted, displayed, published or broadcast, directly or indirectly, in any medium without the prior written permission of Prism Business Media.