Bundling??

[reel-break]

I ask this question on another board see what you think. I wire a house 200 a panel flush mount between 2x4`s under box I drill a 2" hole where I run my 15&20 amp circuits oven and dryer.approx 13 circuits total.Now on the other side I install a 2" pvc conduit where I return to install the wiring for the heat and a/c loads, pump and other loads that maybe added.Have I violated any codes and are there some considerations I should be aware of?The conduit is capped for rough in and I`ll seal when done..It looks real neat..this way I can wire it and don`t have to wait for a/c people to decide where all there stuff goes I come back pull wire and boom I`m done..

 

[kelley]

Re: Bundling??

the only issue that may come up is derating for the amount of wires run thru your holes

 

[jro]

Re: Bundling??

The only problem I see is with the 2" pvc conduit, Art. 310.15 (B)(2)(a), table 310.15 (B)(2) (a), If you put a snap-in plastic bushing or a pvc male adapter in the bottom of the panel for the 15A, 20A circuits etc, you should be ok 310.15 (a) Except.3. NEC 2002

 

[don_resqcapt19]

Re: Bundling??

I think that when you use the 2" PVC you have violations of 312.5(C), 334.30 and possible derating issues.
Don

 

[reel-break]

Re: Bundling??

Don I really value your opinion but I don`t see the violations in 312.5c a-ok b-maybe but it should read above or below panel(you think)c-ok d-ok e-ok f-ok g-I will have to look closer and figure but I`ll have to use size of outer jacket right for the fill? And what about 334.30 would explain your problems with that one as well. Where the 2" hole is I came up and used reg plastic connectors in panel box.I haven`t figure the fill exactly but there`s plenty of room left in the pipe when I`m done mostly just 2 number 10 cables and 2 # 6 cables and .But I`ll have to figure that.I had a problem with a new inspector he questioned what my intent was and when I told been doing that way he never came back with a code voilation so I`m wanting to make sure I cover myself aswell as being done right he passed off on the rough in but I rather fix it now than later if needed.

 

[tom baker]

Re: Bundling??

An exception to 312.5 (C) was added in the 2002 NEC to detail how a raceway can extend from a surface mount panel, for sleeving cables. since this is now in the code, logic may dictate this is the only allowable method.

For determining wire fill, you use the larger diameter of the cable.

Also each cable has to be secured at the point of entry. You method would be ok if you used a large j-box with each cable being secured to it with a connector.

I agree with Don there are derating issues that would have to be adddress. Keep in mind NM is rated at 90 Deg C for derating but the ampacity can't exceed the 60 deg C rating (due to the sheath is rated at 60 deg C).

 

[don_resqcapt19]

Re: Bundling??

reel-break,
My comment about 334.40 applies to the cables in the raceway.
As far as 312.5(C), you asked if your installation was a code violation, not if the code should be changed. Your conduit out the bottom is a violation of 312.5(C) as the exception only applies to conduits out the top of a surface mounted panel. Your conduit is out the bottom of a recessed panel. Your two 10-2 and two 6-3 NM cables will fit in the 2" PVC, but they would be too much for a 1.5" PVC.
Don

[ May 14, 2003, 04:44 PM: Message edited by: don_resqcapt19 ]

 

[reel-break]

Re: Bundling??

Hey guys 312 5.c is for surface mounted panels mine is flush is there any other articals that apply Or am I stuck with I just plainly cannot continue to wire homes this way.And does this mean I can`t have a pipe sleeve above a flush mounted panel period?This has really got my attention because in all homes I leave or install these raceways for after completion and all the add ons.

 

[reel-break]

Re: Bundling??

Well I called the NC stateboard today he called me back and said I cannot install a pipe in a flush mounted panel above or below the panel unless a juction box exist where all the cables are fastened and then run into the panel.Thanks for the replys I`ll now go and remove my code violation.

 

[bphgravity]

Re: Bundling??

Sorry about your luck!