ECN Electrical Forum - Discussion Forums for Electricians, Inspectors and Related Professionals
ECN Shout Chat
Top Posters(30 Days)
dsk 13
Admin 4
Recent Posts
electircal ageing test on IPC
by SIAME. 08/15/17 02:43 AM
electrical aging test on IPC
by gfretwell. 08/15/17 12:27 AM
Bathroom electrical
by gfretwell. 08/14/17 02:05 AM
"Line level" audio on Cat 5?
by gfretwell. 08/08/17 10:39 PM
Fire alarm phone lines and color coding
by gfretwell. 08/08/17 10:26 PM
New in the Gallery:
Housebilding DIY wiring
Popular Topics(Views)
239,870 Are you busy
175,422 Re: Forum
167,719 Need opinion
Who's Online Now
0 registered members (), 27 guests, and 10 spiders.
Key: Admin, Global Mod, Mod
Previous Thread
Next Thread
Print Thread
Rate This Thread
#56511 - 09/23/05 11:33 AM flexible metal conduit  
drgnz23  Offline
Member
Joined: Feb 2002
Posts: 56
los angeles
Okay I work in a laboratory enviroment where i have to install two new receptacles in a room. Is it legal to run flex down the wall or do i have to run EMT? Maybe about forty feet long? Please help


Work Gear for Electricians and the Trades

#56512 - 09/23/05 12:46 PM Re: flexible metal conduit  
Alan Nadon  Offline
Member
Joined: Mar 2005
Posts: 399
Elkhart, IN. USA
Not a Code violation unless exposed to physical damage.
Also refer to Section 250.118(6) Lengths over six feet MUST have a grounding conductor.
Alan--


Alan--
If it was easy, anyone could do it.

#56513 - 09/23/05 02:27 PM Re: flexible metal conduit  
drgnz23  Offline
Member
Joined: Feb 2002
Posts: 56
los angeles
Always run a grounded conductor.
Just having a discussion with my leadman and he thinks we should run EMT in walls. Without ripping away walls Flex should be legal to run. He swears that in our enviroment flex shouldnt be used. I cant find anything that says we cant.


#56514 - 09/23/05 04:15 PM Re: flexible metal conduit  
Joe Tedesco  Offline
Member
Joined: Oct 2000
Posts: 2,749
Boston, Massachusetts USA
EMT (Thinwall) is allowed to be fished without couplings.

Quote
358.30(A)

Exception No. 2: For concealed work in finished buildings or prefinished wall panels where such securing is impracticable,
unbroken lengths (without coupling) of EMT shall be permitted to be fished.


Joe Tedesco, NEC Consultant

#56515 - 09/23/05 10:36 PM Re: flexible metal conduit  
Peter  Offline
Member
Joined: Jun 2004
Posts: 92
San Diego
How exactly is the EMT supposed to be held together without couplings?
~Peter


#56516 - 09/23/05 11:13 PM Re: flexible metal conduit  
electricbill  Offline
Member
Joined: Feb 2005
Posts: 20
chester ny usa
EMT is 10' long top plate to bottom plate(wall interior) is less than 8' no coupling concealed.
bill



Member Spotlight
Niko
Niko
Campbell, CA
Posts: 356
Joined: August 2006
Show All Member Profiles 
Featured:

2017 Master Electrician Exam Preparation Combos
2017 NEC Electrician
Exam Prep Combos:
Master / Journeyman

 

Shout Box
Powered by UBB.threads™ PHP Forum Software 7.6.0
Page Time: 0.011s Queries: 14 (0.002s) Memory: 0.7756 MB (Peak: 0.9193 MB) Zlib enabled. Server Time: 2017-08-17 07:51:05 UTC