Tamper-Resistant Receptacles in Dwelling Units
Comments Sought on
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The designations "National Electrical Code" and "NEC" refer to the
National Electrical Code®, which is a registered
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Top 2008 Code Changes
406.11 Tamper-Resistant Receptacles
By Mike Holt
Requirements for tamper-resistant receptacles were
to the 2008 NEC. The new requirement states that all 15A and 20A, 125V
receptacles in dwelling units shall be listed as tamper resistant.
This rule applies to receptacles installed behind appliances, above
countertops, and other locations out of the reach of children.
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What's Wrong Here?
By Joe Tedesco
Think you know how this installation violates the
Web site to see the answer.
Hint: Proper termination?
By Mike Holt
Q. Can a junction box contain both 277V and 120V
Visit EC&M's Web
site to see the answer.
By Steven Owen
With respect to fixed stage equipment other than
switchboards, what is the maximum ampere load permitted on a 20A branch
circuit serving floodlights, border lights, and proscenium
- 20A or 100%
- 16A or 80%, as per 210.20(A)
- 10A or 50%, as per 210.23(A)(2)
Web site for the answer and explanation.
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Code News Update
Comments Sought on Proposed
As published in the December issue of NFPA News,
the following Tentative Interim Amendment (TIA) has been proposed to
NFPA 70-2008, National Electrical Code
TIA Log No. 936
Submitter: Wayne H. Robinson, Lothian, Md.
1. Revise 680.26(B)(1)(b)(2) as follows: "Conform to the contour of the
and the pool deck and the perimeter surfaces outlined in
2. Revise 680.26(B)(2)(b) as follows: "Alternate Means. Where
structural reinforcing steel is not available or is encapsulated in a
non-conductive compound, a copper grid
conductor(s) shall be
utilized where the following requirements are met:
(1) At least one minimum 8 AWG bare solid copper conductor shall be
(2) The conductors shall follow the contour of the perimeter
(1) The copper grid shall be constructed of 8 AWG bare copper and be
arranged meeting the requirements of 680.26(B)(1)(b)(3).
(2) The copper grid shall follow the contour of the perimeter
extending (3 ft) horizontally beyond the inside walls of the
(3) Only listed splices shall be permitted.
(4) The required conductor shall be 450 to 600 mm (18 to 24 in.)
the inside walls of the pool.
(5) The required conductor shall be secured within or under the
perimeter surface 100 mm to 150 mm (4 in. to 6 in.) below the
(4) Be secured within or under the deck or unpaved surfaces no more
than 150-mm (4 in. to 6 in.) from the underside of the deck."
To review the submitter's reason and emergency nature text for this
here and scroll down to the bottom of page 2.
This TIA has been published for public review and comment. Comments
should be filed with the Secretary, Standards Council by January 16,
2009. You should identify the TIA number when submitting your comments.
The Standards Council will review the technical committees' ballot
results, the public comments, and any other information that has been
submitted when it considers the issuance of the TIA at its March 3-4,
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Shows and Events
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
electricians, and plant facility personnel, there's something for
everyone at the Electric Show. The biggest electrical marketplace in
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:
For more information, visit our Web
- 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
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