Conduit fill LFNC

[Mgarf33]

While it may not be preferred, could 2- 6awg THWN and 1- 10awg THWN pass conduit fill?
If we’re doing 3 conductors at 40% fill that offers 0.125 in². 2-6awg + 1-10awg = 0.1225 in².
So, theoretically would this pass code?

 

[Seven-Delta-FortyOne]

What size LFNC?

 

[letgomywago]

I think hes trying to fit it in a 1/2 in at that amount of fill.

1/2 in is a terrible idea even if technically allowed. 3/4 no problem.

 

[Mgarf33]

Yes, 1/2”. And yes, I understand it’s not advisable, but per code is the question.
Looking at a 3-6’ length.

 

[letgomywago]

Yes, 1/2”. And yes, I understand it’s not advisable, but per code is the question.
Looking at a 3-6’ length.

It fits and is allowed but seriously don't even try unless it's all that's on the van and you have 2 straight connectors no 90s.

 

[infinity]

Yes, 1/2”. And yes, I understand it’s not advisable, but per code is the question.
Looking at a 3-6’ length.

Yes it's fine. At that length it's shouldn't be a problem as long as you keep the three conductors straight without crossing them while inserting.

 

[AC\DC]

Lube, lube, lube.

 

[Tulsa Electrician]

You can always look it up in the tables in chapter 9.
It shows .125 @40% over 2 wires ,fill for LFNC

I did the fill for practice.

 

[Seven-Delta-FortyOne]

Just pull the conductors in before connecting it.

Yes, it’s a “violation” but no one cares.

 

[letgomywago]

Just pull the conductors in before connecting it.

Yes, it’s a “violation” but no one cares.

I also have an issue with this and 90 degree connectors since we need short radius 90s to be accessible.

 

[Birken Vogt]

Just pull the conductors in before connecting it.

Yes, it’s a “violation” but no one cares.

The code also says that the 90 degree connectors must be accessible after installation/finish so it's obvious they intend for you to put the wires in the conduit before assembling the connectors.

 

[infinity]

The code also says that the 90 degree connectors must be accessible after installation/finish so it's obvious they intend for you to put the wires in the conduit before assembling the connectors.

I agree. No one expects you to pull 600's through an angle connector. It would help if the NEC mentioned that these connectors can be installed after the conductors are pulled to end the confusion.

 

[wwhitney]

I agree. No one expects you to pull 600's through an angle connector. It would help if the NEC mentioned that these connectors can be installed after the conductors are pulled to end the confusion.

I always thought the second sentence of 300.18(A) covered this. It is implicitly an exception to the preceding sentence, meaning you can pull the conductors through before making the terminating raceway connection at the equipment. But of course this only applies at the utilization equipment, not elsewhere in the conduit run.

Cheers, Wayne

300.18 Raceway Installations.

(A) Complete Runs. Raceways, other than busways or exposed raceways having hinged or removable covers, shall be installed complete between outlet, junction, or splicing points prior to the installation of conductors. Where required to facilitate the installation of utilization equipment, the raceway shall be permitted to be initially installed without a terminating connection at the equipment. Prewired raceway assemblies shall be permitted only where specifically permitted in this Code for the applicable wiring method.

Exception: Short sections of raceways used to contain conductors or cable assemblies for protection from physical damage shall not be required to be installed complete between outlet, junction, or splicing points.

 

[infinity]

I always thought the second sentence of 300.18(A) covered this. It is implicitly an exception to the preceding sentence, meaning you can pull the conductors through before making the terminating raceway connection at the equipment. But of course this only applies at the utilization equipment, not elsewhere in the conduit run.

Cheers, Wayne

I think that pretty much solves the issue of a 90° connector. As you've mentioned it doesn't cover other installations not involving equipment.

 

[Little Bill]

I've installed mobile home feeder, direct buried cable, in PVC. On one install, I had to slide the PVC conduit over the cable one stick at a time. Not legal, but was almost impossible to pull with 90's and fittings. It did not catch fire doing it this way!

 

[letgomywago]

I've installed mobile home feeder, direct buried cable, in PVC. On one install, I had to slide the PVC conduit over the cable one stick at a time. Not legal, but was almost impossible to pull with 90's and fittings. It did not catch fire doing it this way!

Had a boss who'd do this when he shouldn't have lots