Using existing panel as a raceway

jeramiepluemer said:
Mike Holt Enterprises

Oh I'm sorry I didn't realise it was in the 2017 NEC, so NO it's not permitted.
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It was permitted in the 2011 and older codes. It is permitted in the 2023 code and all of the code editions between 2011 and 2023.
 
BillyRCCE said:
However, by the 2017 NEC, the interpretation and application of these rules became stricter. The 2017 NEC emphasizes that raceways must be continuous between enclosures and that conductors in raceways must be continuous between outlets, boxes, devices, and so forth. This stricter interpretation means that using a panel as a raceway is generally not allowed unless it meets very specific conditions and is explicitly permitted.

UL Listing and Code Compliance​

Another critical factor is the UL listing of the panel. Electrical equipment, including panels, must be installed and used in accordance with their UL listing. Panels are typically not UL-listed for use as raceways, so using them in this manner would be a violation of the code.
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AI gets it wrong again.
A panelboard box is UL Listed as an enclosure, it is not a raceway. The governing section is 312.8, as has already been mentioned.
 
jeramiepluemer said:
Why in 2012 could we use the main panel (which will soon be a sub panel) as a raceway for the newly pulled wires from the meter for the generator whole house transfer switch so we can use the exist conduit and openings and Mount t switch next to panel inside but not in the 2017 NEC.
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I suspect your issue is not the panel its using the existing conduit for both service and feeder conductors has been a code violation for a very long time, this at one time was not enforced as I have seen many old installs like this. Please post a photo of the install.
 
312.8 says you can run the service conductors through the panel enclosure, even if there are non-service conductors present. If this were not true you would always need to have a barrier between the service conductors and any circuits leaving the panel, like they do in Canada.
You cannot run non-service and service conductors within the same raceway.

Can you 'copy and paste' or otherwise cite the verbiage you say is conflicting with this position?
 
jeramiepluemer said:
so what is the answer yes or no
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jim dungar said:
312.8 says you can run the service conductors through the panel enclosure, even if there are non-service conductors present. If this were not true you would always need to have a barrier between the service conductors and any circuits leaving the panel, like they do in Canada.
You cannot run non-service and service conductors within the same raceway.

Can you 'copy and paste' or otherwise cite the verbiage you say is conflicting with this position?
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I can't. People are now mad. Thanks for your help. I will make sure I write this in my code book
 
jim dungar said:
312.8 says you can run the service conductors through the panel enclosure, even if there are non-service conductors present. If this were not true you would always need to have a barrier between the service conductors and any circuits leaving the panel, like they do in Canada.
You cannot run non-service and service conductors within the same raceway.

Can you 'copy and paste' or otherwise cite the verbiage you say is conflicting with this position?
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It's from the guy who's name is attached to this forum. See why I don't want to tell anyone. Crazy. Thought we are suppose to dig in deep to the code. Guess it only applies if Master Electricians can tell us lower Electricians we are always wrong. Wasn't even my intention. Just wanted to understand. Again through all that we figured it out. Thanks again!
 
jeramiepluemer said:
It's from the guy who's name is attached to this forum. See why I don't want to tell anyone. Crazy. Thought we are suppose to dig in deep to the code. Guess it only applies if Master Electricians can tell us lower Electricians we are always wrong. Wasn't even my intention. Just wanted to understand. Again through all that we figured it out. Thanks again!
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I would like to see what you are referring to.

As far as I know the owner of this forum does not participate in on-line discussions. So you must be referring to something in his written work.
 
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