Email
More
What's Wrong Here?
May 21, 2009 2:30 PM, By Joe Tedesco, NEC Columnist
Hint: Sunstroke conduit
The lack of a proper expansion fitting in this exposed run of rigid nonmetallic conduit led to the opening you see in the lower right of this photo. This PVC conduit contains feeder conductors connected to an onsite generator.
Section 352.44 calls for expansion fittings to be installed where the length change in a straight run of PVC between securely mounted items such as boxes, cabinets, elbows, or other conduit terminations, in accordance with Table 347-9(A), is expected to be ¼ in. or greater. The thermal expansion characteristics of PVC rigid nonmetallic conduit is shown in Table 352.44.
In addition, this particular exposed conduit does not appear resistant to sunlight effects, as noted in 352.100, nor does it meet the "securing and supporting" requirements of 352.30.
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:
