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#82132 - 10/18/02 09:25 AM Liquidetight Flex. Metal Conduit  
DB  Offline
Joined: Mar 2002
Posts: 18
St. Louis
After reading NEC 350.10 I believe there is no limit unless it is used for a service-entrance feed.

Now per NEC 356.12 the LFNC (non-metalic) is limited to 6ft.

Is there a lenght limit for LFMC (metalic)?


2017 / 2014 NEC & Related Books and Study Guides

#82133 - 10/18/02 10:14 AM Re: Liquidetight Flex. Metal Conduit  
resqcapt19  Offline
Joined: Nov 2000
Posts: 2,148
In general there is no limit on the installed length of flexible wiring methods except for Flexible Metallic Tubing (Article 360) and types A and C of Liquidtight flexible nonmetallic conduit (Article 356). The other flexible wiring methods can be installed in unlimited lengths, subject to the 360° between pull points and the support rules for the raceway involved. Remember that in counting the degrees, every little variation from straight counts, and this will provide a limitation on the installed length.


#82134 - 10/18/02 11:15 AM Re: Liquidetight Flex. Metal Conduit  
DB  Offline
Joined: Mar 2002
Posts: 18
St. Louis
Thanks for the confirmation.


#82135 - 10/18/02 03:27 PM Re: Liquidetight Flex. Metal Conduit  
walrus  Offline
Joined: Jul 2002
Posts: 680
Bangor Me. USA
Isn't the 6 ft rule only used when one is going to use the Liquid tite for bonding?

#82136 - 10/18/02 07:01 PM Re: Liquidetight Flex. Metal Conduit  
spyder  Offline
Joined: Oct 2002
Posts: 210
I have even heard that there are guys out there wiring pool lights in Liquidtight Non-Metallic conduit. Has anyone heard the same?

#82137 - 10/18/02 10:53 PM Re: Liquidetight Flex. Metal Conduit  
Joe Tedesco  Offline
Joined: Oct 2000
Posts: 2,749
Boston, Massachusetts USA
Article 680 includes permission to use LTFNMC for a pool light.

Joe Tedesco, NEC Consultant

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