Romex in PVC sleave

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Rewire

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We have been using a 24 inch pvc sleave into the panel to run our romex in.Now the inspector wants a calculation on how many romex cables can be put into it and be within the 60%. I can not find the cir mil area for romex 12/2 wG help.
 
do not have any info for you but I am woundering hoe the romex is entered
into the panel if there are no connectors
 
all cables entering a panel must be secured by approved clamps .. nipples less than 24" are not covered by conduit fill requirements of the tables.
 
tadavidson said:
.. nipples less than 24" are not covered by conduit fill requirements of the tables.

Table 9 Note 4:
Where conduit or tubing nipples having a maximum length not to exceed 600 mm (24 in.) are installed between boxes, cabinets, and similar enclosures, the nipples shall be permitted to be filled to 60 percent of their total cross-sectional area, and 310.15(B)(2)(a) adjustment factors need not apply to this condition.

Nipples less than 24" ARE covered by conduit fill...just not the tables in 300.
 
I would say the conduit fill does not apply per note #2 of Chapter 9, table #1.

If your inspector won't "see the light", why not just take a tape measure to the Romex to find the dimensions?

That note #9 would be a real hassle for Romex, Don:)

Steve
 
Why would you ever use a piece of conduit to run romex into a panel. I have seen this many times but just don't understand it, seems plain lazy and irresponsible. I have also seen guys take about 15 runs of romex and terminate them into the box with a 1/14" seu connector.
 
Steve,
The only time the code pemits the use of a section of conduit to run romex into to a panel is where the panel is surface mounted. It would be done to improve the looks of the installation. See the exception to 312.5(C).
Don
 
Rewire said:
We have been using a 24 inch PVC sleeve into the panel to run our romex in.Now the inspector wants a calculation on how many romex cables can be put into it and be within the 60%. I can not find the cir mil area for romex 12/2 wG help.

I have calculated this for 12/2w/ground as:

12/2 measured 3/8" or .375 in.

Circle Area = Pi * R(Squared)

CA = 3.14 * (.1875 * .1875)

CA = 3.14 * .0351562

CA = .1103904
 
Talk about bad ways to enter a panel. The other day I saw a service where each pair of romex cables entered thru a single duplex BX connector. In most cases the force required to get the cables thru the connector slid the sheathing up the cable so it looked like a bellows. Wish I had been an inspector that day (this passed).

Mark
 
busman said:
Talk about bad ways to enter a panel. The other day I saw a service where each pair of romex cables entered thru a single duplex BX connector. In most cases the force required to get the cables thru the connector slid the sheathing up the cable so it looked like a bellows. Wish I had been an inspector that day (this passed).

Mark

MC Duplex connectors are rated for romex. I would rather use a duplex connector then to put two peices of romex in one romex connector.
 
Arlington makes a 1 1/4" NM connector thet is 'listed' for up to 9 12-2 nm (romex) cables. Sometimes it looks better to bundle for the allowable 24" than to have 9 separate entries. Don't bag on me for doing it this way. It is NEC compliant, safe, good looking and I like it.

Bob on the left coast.
 
speedystevie said:
MC Duplex connectors are rated for romex. I would rather use a duplex connector then to put two peices of romex in one romex connector.

Are you saying that these duplex connectors are listed for romex? I haven't seen that. At the T&B website, these are listed as "Armored Cable/Flexible Metallic Conduit Fittings". Maybe I'm missing something.

Mark
 
busman said:
Are you saying that these duplex connectors are listed for romex? I haven't seen that. At the T&B website, these are listed as "Armored Cable/Flexible Metallic Conduit Fittings". Maybe I'm missing something.
Mark

We have been using these connectors with romex for a few years now and can be very helpfull on panels. You can see on the connector where the connector pulls together to grip the MC is actually flat and not round.

The insulation of the romex is not supposed to make it past the 1/2" connector threads.

We only use them for romex up to #10 either 2 or 3 wire. These really come in handy for when you need to get two 3 wires into one 1/2" ko.
 
Last edited:
bkludecke said:
Arlington makes a 1 1/4" NM connector thet is 'listed' for up to 9 12-2 nm (romex) cables. Sometimes it looks better to bundle for the allowable 24" than to have 9 separate entries. Don't bag on me for doing it this way. It is NEC compliant, safe, good looking and I like it.
Bob on the left coast.

I am guessing that you need to strip-out the romex at the connector and not where the PVC meets the panel. Doesn't it become difficult to keep track of your labeling?
 
speedystevie said:
We have been using these connectors with romex for a few years now and can be very helpfull on panels. You can see on the connector where the connector pulls together to grip the MC is actually flat and not round.

The question still remains is the fitting you are using listed for the cables you are using?

It does not matter if;

You have been using them

Or that it is helpful

Or that the grip is flat not round.

300.15 Boxes, Conduit Bodies, or Fittings ? Where Required.
A box shall be installed at each outlet and switch point for concealed knob-and-tube wiring.

Fittings and connectors shall be used only with the specific wiring methods for which they are designed and listed.

Where the wiring method is conduit, tubing, Type AC cable, Type MC cable, Type MI cable, nonmetallic-sheathed cable, or other cables, a box or conduit body complying with Article 314 shall be installed at each conductor splice point, outlet point, switch point, junction point, termination point, or pull point, unless otherwise permitted in 300.15(A) through (M).

All I am saying is you should be sure the fittings are listed for the purpose.
 
iwire said:
The question still remains is the fitting you are using listed for the cables you are using?
It does not matter if;
You have been using them
Or that it is helpful
Or that the grip is flat not round.
All I am saying is you should be sure the fittings are listed for the purpose.

Yes they are listed, I have seen the UL papers from my supplier and every inspector that has ever questioned them has corrected themselves.

So yes, they are listed for use with romex by UL. I work very much by the book and I am very anal about my work, I always check before I use a new product.
 
Speediestevie,
The Arlington 11/4 connector I was reffering to attaches right to the panel just like other NM connectors; it's just bigger and holds a bunch of cables.

Keeping track of which cable is which is easier than keeping track of my crew near breaktime.

Bob on the left coast.
 
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