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April 28, 2009 A Penton Media Publication Vol. V No. 8

Cast Your Vote for the EC&M Product of the Year!

Motors and "Worst Practices"

Electrical Troubleshooting Quiz

Motor Repairs and Failure Analysis,
Part 1

NEC in the Facility


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

MRO Insider addresses topics such as:

  • Working with management and supervision
  • National Electrical Code® on the production floor
  • Safety procedures and programs
  • Troubleshooting techniques
  • Equipment maintenance and testing tips
  • Managing motors and generators
  • Trends in training and education
  • Managing energy use

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





    Product of the Year Competition
    Cast Your Vote for the EC&M Product of the Year!
    Would you like to help pick the prestigious EC&M Product of the Year winner and qualify for a chance to win $100? If you’re an EC&M subscriber, make your vote count by visiting the 2009 EC&M Product of the Year Poll To review the products, click on the links for each of the 29 category winners to read a brief description and view a photo. Once you're finished with your review, enter your contact information, choose your favorite product from the dropdown menu, and click submit.

    Your selection will help us identify the 2009 EC&M Product of the Year Platinum, Gold, and Silver award winners. As an added incentive, three lucky voters will be randomly selected to receive a $100 gift check.

    The voting poll will remain open through 5 p.m. on June 19, 2009. Only one vote per EC&M subscriber, please. Any votes received from manufacturers, PR firms, or non-EC&M readers will be discarded.

    Motors and "Worst Practices"
    You’ve probably heard of "best practices." The idea is to look at what others have done and apply a similar practice to improve your situation. The flipside is "worst practices." We can look at what others have done wrong and avoid similar practices.

    Visit EC&M's Web site to see some examples of worst practices.

    101 uses for the new Fluke 416D and 411D Laser Distance Meters.
    Best-in-class tools take you long distances, beyond hard-to-reach areas and through time-consuming calculations, with laser accuracy. You can use the Fluke distance meters in dozens of electrical, industrial, and HVAC applications. Go to to find out all 101!

    Electrical Troubleshooting Quiz
    The plant air system depends on four 100-hp motors, and one of them is vibrating badly. The pipe coming off the compressor even makes a rattling sound. What should you not do to solve this problem? What steps should you take?

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

    Motor Repairs and Failure Analysis,
    Part 1

    One common view of motor repair goes as follows:

    1. Repair or replace motor.
    2. Return to service.
    This often results in a third step: repeat. If you have déjà vu with any of your motor repairs, the underlying problem is that your repair isn’t complete. You’re fixing the symptom (motor stopped, production down), not the problem.

    Failure analysis allows you to determine why motors failed so you can solve for that cause. Several failure analysis methodologies exist.

    To read more on this story, visit EC&M's Web site.


    Copper Battery Lugs Starting from $0.29/Each, ElecDirect offers a variety Copper Battery Lugs from 8GA up to 4/0GA. Made from 100% pure copper for superior conductivity and flared ends for easy wire insertion. Crimpable or Solderable. ElecDirect also offers Tin Plated Copper Lugs perfect for marine applications & longer life. ElecDirect stocks more than 13,000 electrical products & tools. Cable Ties, Cord Grips, Terminals, IEC Contactors, Heat Shrink Tubing, Wire Duct, Power Distribution Blocks & much more. Visit, or call toll free 800-701-0975.

    NEC in the Facility
    How can you make an intrinsically safe system unsafe? Ground it.

    If you’ve just done a double-take on that, read the Art. 100 definitions of grounding and bonding.

    To keep these systems safe, remove the difference of potential (and thus a flashover danger) from them and the metal objects around them. To do this:

    1. Connect intrinsically safe apparatus, enclosures, and raceways (if metallic) to the equipment grounding (bonding) conductor [504.50].
    2. Bond all metallic objects of the system per 250.100 [504.60].

    In the typical modern factory, signs are everywhere. While the intention is good, the effect can be counterproductive. People get "sign fatigue" and start tuning out the flood of messages. In some facilities, there are so many signs overhead, on the walls, and on equipment that they blend into each other and ratchet up the background noise.

    To read more on this story, visit EC&M's Web site.

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