Email
More
What's Wrong Here?
Jun 20, 2006 1:29 PM, By Joe Tedesco
Hint: Go ahead and throw on another coat of paint.
This is the result of many years of painting at a hotel in San Diego. The numerous layers of paint have put the clamp behind a thick layer of insulation. Although it may never be called upon to do its job, this ground clamp would fail miserably if it ever were.
As per 250.12 of the 2005 NEC, “Nonconductive coatings (such as paint, lacquer, and enamel) on equipment to be grounded shall be removed from threads and other contact surfaces to ensure good electrical continuity or be connected by means of fittings designed so as to make such removal unnecessary.” For additional information on ground clamps, see 250.8, 250.10, and 250.70.
Sponsored by:
Back to Question | See Full List of Quizzes
Want to use this article? Click here for options!
© 2010 Penton Media, Inc.
Code Challenge
Code Quiz
Mar 11, 2010 12:45 PM, By Steven Owen
When installing outlet boxes for wall-mounted luminaires, when can you use No. 6 screws to secure the luminaire yoke to a plaster ring?...
More Code Quizzes
Acceptable Use Policy blog comments powered by Disqus
What's Wrong Here
Sponsored By:
advertisement
what's wrong here?
|
Whats Wrong Here?Mar 11, 2010 12:54 PM |
|
What's Wrong Here?Feb 18, 2010 5:04 PM |
|
What's Wrong Here?Feb 4, 2010 5:06 PM |
View all What's Wrong Here?
What's Wrong Here
Sponsored By:
