Expansion Joints For Electrical Conduit - Electrical - Page 2 - DIY Chatroom Home Improvement Forum

Go Back   DIY Chatroom Home Improvement Forum > Home Improvement > Electrical


Thread Tools Display Modes
Old 04-17-2011, 09:21 PM   #16
Join Date: Nov 2005
Location: Winnipeg, Manitoba
Posts: 1,298
Rewards Points: 802

You can actually get expansion joints for EMT as well, i have never had to use one though.


darren is offline   Reply With Quote
Old 04-17-2011, 09:32 PM   #17
Missouri Bound's Avatar
Join Date: Apr 2011
Location: Almost Arkansas
Posts: 2,764
Rewards Points: 2,000

Although they are listed as required in the NEC book, the circumstances where they would be needed in any residential installation would be rare...if not non-existant. Only under extreme temperature changes and excessive lengths are they required, and not in burial situations.
Missouri Bound is offline   Reply With Quote
The Following User Says Thank You to Missouri Bound For This Useful Post:
CDH (04-18-2011)
Old 04-19-2011, 03:16 AM   #18
Electrical Contractor
Join Date: Feb 2008
Location: Colonia, NJ
Posts: 127
Rewards Points: 75

Its need is more common that you think. The code states an expansion joint “shall be provided” in straight runs between securely mounted items with an expected expansion of ”. A 20' straight run that’s mounted on the side of a house with a 40 degree temperature change would require an expansion joint.


Last edited by hpp58; 04-19-2011 at 04:22 AM. Reason: Word Change
hpp58 is offline   Reply With Quote

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Similar Threads
Thread Thread Starter Forum Replies Last Post
less than perfect looking expansion joints amakarevic Building & Construction 6 10-19-2010 11:13 PM
Chicago Conduit Rules Wrigleyville Electrical 6 01-28-2010 06:49 PM
Not sure which forum, but Driveway Expansion Joints Leaking into Basement, help? ClemsonJeeper Concrete, Stone & Masonry 2 08-07-2009 11:42 AM
Concrete patio w/o expansion joints TrentJA Building & Construction 7 07-24-2009 03:28 PM
Expansion Joints mpt1123@adelphia.net Flooring 4 03-09-2006 05:44 AM

Top of Page | View New Posts


Search Engine Friendly URLs by vBSEO 3.6.1