This article was posted 06/01/2007 and is most likely outdated.

Article 408 Switchboards and Panelboards - 408.7
 

 
Subject - Article 408 Switchboards and Panelboards - 408.7
Based on - NEC - 2005 Edition

June 1, 2007
This newsletter was sent to 26018 newsletter subscribers 

Ask a Question |  Weekly Code Graphic |  Quizzes |  Free Stuff |  Instructors | Online Training |  Products | Seminars | Subscribe | Unsubscribe
[ image1 Post Comments | View Comments | Notify Me When Comments Are Added ] Web Page Version [Printer-Friendly]    

Article 408   Hi Res - Cable/DSL [4522Kb]
VIEWING Video FILE requires
Real Media Player [ FREE ]
Switchboards and Panelboards

408.7 Unused Openings

New section specifies that unused openings for circuit breakers and switches must be closed in a manner approved by the authority having jurisdiction to restrict access to energized parts when the equipment is fully assembled.

Unused openings for circuit breakers and switches must be closed using identified closures, or other means approved by the authority having jurisdiction as providing protection substantially equivalent to the wall of the enclosure. Figure 408-2


Figure 408-2
(Click on image to enlarge)

       
 
Click here to post a comment
[ View More Newsletters ] [ Send to a Friend ] [ Post Comments | View Comments | Notify Me When Comments Are Added ]

Copyright © Mike Holt Enterprises, Inc. All rights reserved.
This article is protected by United States copyright and other intellectual property laws and may not be
displayed or published on the internet without the prior written permission of Mike Holt Enterprises, Inc.

http://www.MikeHolt.com     1-888-NEC-CODE (1-888-632-2633)

Experiencing a Problem? Click Here

Comments

  • Hmm, I thought this was generally already required. But in the light of Ms Mann's concerns regarding sticking objects into live equipment, wouldn't a more practical safety item be one where these circuit breaker blanks be mechanically held, instead of the pop and pull plastic tab sort; much like how large knock out seals are held with a bolt and flange thus necessitating a minimum of tools to remove it?

    Alexander Osborn
Reply to this comment
* Your Name:
   Your name will appear under your comments.

* Your Email:
   Your email address is not displayed.
* Comments:

Email Notification Options:
Notify me when a reply is posted to this comment
Notify me whenever a comment is posted to this newsletter