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Joined: Mar 2002
Posts: 18
D
DB Offline OP
Member
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)?


DB
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Joined: Nov 2000
Posts: 2,148
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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.
Don


Don(resqcapt19)
Joined: Mar 2002
Posts: 18
D
DB Offline OP
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Thanks for the confirmation.


DB
Joined: Jul 2002
Posts: 680
W
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Isn't the 6 ft rule only used when one is going to use the Liquid tite for bonding?

Joined: Oct 2002
Posts: 210
S
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I have even heard that there are guys out there wiring pool lights in Liquidtight Non-Metallic conduit. Has anyone heard the same?

Joined: Oct 2000
Posts: 2,749
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Article 680 includes permission to use LTFNMC for a pool light.


Joe Tedesco, NEC Consultant

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