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May 12, 2009 A Penton Media Publication Vol. V No. 9
CONTENTS
Cast Your Vote for the EC&M Product of the Year!

Maintaining Motors for Cost Reduction

Electrical Troubleshooting Quiz

Motor Repairs and Failure Analysis, Part 2

NEC in the Facility

Safety


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.
     
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    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.
    Maintenance
    Maintaining Motors for Cost Reduction
    Here’s a quick quiz. When is the best time to fix problems in motor systems?

    1. After the damage is done.
    2. Before the damage is done.

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

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    Repair
    Electrical Troubleshooting Quiz
    You’re visiting one of your company’s other plants as part of a technical exchange program. The idea is that the various maintenance departments will learn from each other and apply the best ideas.

    This plant has a process line similar to one of yours. It’s new, and it’s complicated with bugs yet to be worked out. Thus, it frequently shuts down.

    At your plant, these shutdowns last about half an hour, and then you’re good until a different problem arises. On your first day at the other plant, you notice its line has been down all morning. So, you ask why it’s been down so long. Your counterpart looks at you funny and says that’s the normal time it takes to get the line running again.

    Can you think of some probable causes of this difference in downtime?

    Visit EC&M's Web site to see the answer.
    Motor Repairs and Failure Analysis, Part 2
    Because failure mode analysis depends on good field data, the means of recording such data must be conducive to accuracy. Generally, there’s a trade-off between accuracy and the amount of data collected; choose less data to get more accuracy. To get useful data, keep maintenance forms brief, generic, easy to use, and free of replication. If text isn’t clear and direct, rewrite until it is.

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

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    Operation
    NEC in the Facility
    To prevent unintentional interference during testing and servicing, intrinsically safe circuits must be identified at terminal and junction locations [504.80]. Obviously, there’s a problem if you can’t read the labels.

    Tag every cable and terminal with clear, legible, and durable labels. Doing this is part of good workmanship [110.12]. It also reduces confusion, prevents errors, and reduces downtime.

    To read more on this story, visit EC&M's Web site.
    Safety
    Part of your supervisor’s job is to plan for your safety. Part of your job is to follow the plan and to follow safety procedures. Nevertheless, your supervisor and the folks who write safety procedures can’t anticipate everything. This leaves you with an important part of the safety puzzle to solve.

    Fortunately, safety doesn’t have to be a Rubik’s cube. Before you start working on a job, do a mental rehearsal and dry run. As you mentally walk through the steps of the job, ask what dangers each step might present.

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

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