| CONTENTS
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Cast Your Vote for
the EC&M Product of the Year!
What's Wrong
Here?
Code Q&A
Code Quiz
Selective
Coordination Guide
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About this Newsletter
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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.
Provide information on upcoming Code® seminars and
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Important Notice
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
2010
EC&M Product of the Year category winners list. To review
the
products, click on the links for each of the 33 category winners to
read
a brief description and view a photo. Once you're finished with your
review, visit the
polling page, enter your contact information, choose your favorite
product from the drop-down menu, and click submit.Your selection
will
help us identify the 2010 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 18, 2010. Please,
only one vote per EC&M subscriber. Any votes received from
manufacturers, PR firms, or non-EC&M readers will be discarded.
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Code Challenge
What's Wrong Here?
By Brian J. McPartland
Think you know how this installation violates the
NEC? Visit EC&M's
website to see the answer.
Hint: Isolated or non-isolated?
Code Q&A
By Mike Holt
Q. Can I use SER cable in a 4-story multifamily
dwelling?
Visit EC&M's
website to see the answer.
Code Quiz
By Steven Owen
When are low-voltage control equipment, relays, motors
and the like permitted to be installed in compartments with exposed
high-voltage energized parts or high-voltage wiring with respect to
equipment that is operating at over 600V?
- When the access means is interlocked with the high-voltage switch
or
disconnecting means to prevent the access means from being opened or
removed.
- When the high-voltage switch or disconnecting means is in the
isolating position.
- Option A or B is permitted
- It is never permitted to do this in applications over 600V nominal
Visit EC&M's
website for the answer and explanation.
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Code News Update
Selective Coordination Guide
The National Electrical Manufacturers Association
(NEMA)
has published ABP 1-2010 Selective Coordination. The new white
paper provides guidance on how to comply with the 2008 NEC requirements
outlined in Articles 620, 700, 701, and 708. Manufacturers have
provided
detailed technical information on how to select and verify that the
overcurrent protective devices offered in the market today can be used
to satisfy the requirements of the system specifications and the intent
of Code.
ABP 1 can be downloaded at no charge by visiting the NEMA website.
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