NM cable entering a panel ?

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acrwc10

acrwc10

Master Code Professional
Location
CA
Occupation
Building inspector
This one should seem like a no brainer, but I can't seem to locate a code section for it. Maybe I just need I new part of the wall to start banging my head against.
When you bring NM-B into a panel or metal box wouldn't it be required have a 2 screw connector or some sort of box connector on it ? I have seen people use a large chase nipple 1"to 2-1/2'' with a bunch of NM stuck into it, or the typical no bushing at all just a KO out of the box and an romex run through the hole. "Not the way I ride", but I think most of us have seen it done that way. The closest I come up with is 300.16 (B)
 
I've done it. When I first started residential my boss had me using LV snap in busings in panels and cans.....until I got busted for it. I was told that they were OK to use in panels...but not cans. To this day I'm still not sure why.


Edit: Now I am....thanks bob. :)
 
Out in the wild west we ALWAYS....and I mean ALWAYS....since the 50's, run the bundle of NM's thru a plastic bushing or chase nipple into our exterior mounted services.



That's the way we roll :)


I had no idea it was against code until I read it here.


I think they wrote the code thinking of the surface mounted panels in a basement with the NM exposed. Of COURSE you would want it connected there but when it is in the wall cavity, it's not going anywhere.
 
220/221 said:
Out in the wild west we ALWAYS....and I mean ALWAYS....since the 50's, run the bundle of NM's thru a plastic bushing or chase nipple into our exterior mounted services.



That's the way we roll :)


I had no idea it was against code until I read it here.


I think they wrote the code thinking of the surface mounted panels in a basement with the NM exposed. Of COURSE you would want it connected there but when it is in the wall cavity, it's not going anywhere.
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Don't feel bad...That's the way everyone does it here too:grin:

For outside panels I sleeve the wire out with a piece of 3" or 4" plumbing pipe(it's free in the trash pile), depending on amount of wires.
On trim-out, strip out the wires, put a MA on the back of the panel, and slide it on.
 
220/221 said:
Out in the wild west we ALWAYS....and I mean ALWAYS....since the 50's, run the bundle of NM's thru a plastic bushing or chase nipple into our exterior mounted services.



That's the way we roll :)
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Are you speaking for the entire West - or the niche down that a way? Won't fly in my pasture up yonder...
 
e57 said:
Are you speaking for the entire West - or the niche down that a way? Won't fly in my pasture up yonder...
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Don't fer'git it wernt that longa go that thems all carryed guns on ther hips in AZ. up yer way they swing ther hips. :D
 
I am about as far west as you can get , your method wouldn't fly here, someone tried it 25 years ago nearby and it was rejected. Art 312 now has a specific method to do a "jackboot", but it only gives the one method, so all others are a violation.
I would suggest a code proposal. You have until November.
Or if your are in the far west of Washington, you can make a proposal to change the state rules, by the end of March.
 
Are you speaking for the entire West - or the niche down that a way
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I am refering to AZ. Phoenix metro is a 3 million person niche:wink: The cables run down the wall chase (frame or block) and enter the exterior panel in the back. I can't think of another logical way to do it....or a logical reason not to.


Don't fer'git it wernt that longa go that thems all carryed guns on ther hips in AZ.
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Now we can carry them concealed under our jackets :cool:
 
acrwc10 said:
Don't fer'git it wernt that longa go that thems all carryed guns on ther hips in AZ. up yer way they swing ther hips. :D
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I spent some time as a kid in Benson AZ - I was amazed by all the other kids and thier shot guns.... FYI hip swingin' is reserved for one part of town ;) They often dress as cowboys - often.... :D

Trivia time
Alaska has both the easternmost and westernmost spots in the entire country! The piece of land with the most westerly longitude is Amatignak Island at 179? 06' 31" west, just shy of the 180th meridian. Only 70 miles away, in a westerly direction but on the other side of the meridian, is Pochnoi Point on Semisopochnoi Island, with the most easterly longitude of 179? 46' east.
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Ref: http://www.dced.state.ak.us/oed/student_info/learn/aboutgeography.htm

Anyway - even the code compliant method is new to me - and new to the code ('05 I think?) and may take some time to catch on here - if ever...
 
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e57 said:
I spent some time as a kid in Benson AZ - I was amazed by all the other kids and thier shot guns.... FYI hip swingin' is reserved for one part of town ;) They often dress as cowboys - often.... :D

QUOTE]

LMAO... I almost fell out of my chair..:D
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with nm, u can just use romex connectors or those black buttons, but the buttons can be a pain in the ass if u have to take the romex back out.
 
1793 said:
I see this alot in my neck of the woods.

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As long as they meet the requirements of 312.5 (C) its okay....

but in your picture looks like its missing, (a), (c), (d), & (f). But i'm sure the (g) is violated as well. :)
 
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Typical in AZ


Plastic bushing, no "connector".


Electrical041.jpg
 
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