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URD In Conduit

Wrench507

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Does URD cable need to be in conduit from the LB to the subpanel inside the garage?
 
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markf4e

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It should be in conduit up to the panel. You could also put a junction box in where the URD comes in to the garage, and switch to cable (like SER) for the rest of the run to the panel.
 

Charles (in GA)

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URD cannot enter the building, so conduit or not, it cannot go to the panel if the panel is inside the building. You would need to put a junction OUTSIDE the building and transition to something else to the panel.

Charles
 

pattenp

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URD is a direct bury cable and does not need to be in conduit other than where exposed above earth. And as Charles stated it cannot be run inside of a structure, the reason being, is URD does not have fire resistant rated insulation.
 
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Wrench507

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Yes, I have three exposed ~8’ (2-2-4) URD wires between the subpanel and LB. Can someone cite NEC so I have something to show him the URD cannot enter the building? Thanks for the help.
 

pattenp

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Yes, I have three exposed ~8’ (2-2-4) URD wires between the subpanel and LB. Can someone cite NEC so I have something to show him the URD cannot enter the building? Thanks for the help.

URD is a USE only rated cable. USE cable - 2011 NEC 338.12 (B) Uses not permitted. (1) For interior wiring.

Look at the insulation and check the markings. If marked with just a USE or USE-2 then it cannot be inside. It the wire also has the RWH or RWH-2 then it can be inside.
 

Speedy Petey

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Yes, I have three exposed ~8’ (2-2-4) URD wires between the subpanel and LB. Can someone cite NEC so I have something to show him the URD cannot enter the building? Thanks for the help.
EVERY inspector I have EVER encountered has allowed URD to enter a panel. Even a few feet into a building.
Sure it does enter the building partially, but I guess in their opinion, and obviously mine, this is not "interior wiring".
 

pattenp

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EVERY inspector I have EVER encountered has allowed URD to enter a panel. Even a few feet into a building.
Sure it does enter the building partially, but I guess in their opinion, and obviously mine, this is not "interior wiring".

All I can say is to be NEC compliant, USE is to be terminated outside of the structure.
 

Speedy Petey

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All I can say is to be NEC compliant, USE is to be terminated outside of the structure.
I disagree.
If they meant the conductors are not to enter the structure at all they would say so. They would have worded it something like "Not to be used within a structure" or something similar.
Bringing in service entrance conductors or feeders a few feet into a building is NOT "interior wiring".

This is a classic interpretation issue and I interpret it different than you.
 

wyliesdiesels

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I disagree.
If they meant the conductors are not to enter the structure at all they would say so. They would have worded it something like "Not to be used within a structure" or something similar.
Bringing in service entrance conductors or feeders a few feet into a building is NOT "interior wiring".

This is a classic interpretation issue and I interpret it different than you.

Ok, so what is the exact wording. I don't have my book with me.
 
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Wrench507

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I don't know if it helps, but the two wires are marked as "Alcan W 2 AWG AL XLPE 600W". Thanks for all of the responses.
 
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pattenp

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USE is not allowed in the structure, period.

NEC 338.12 Uses not permitted (B) USE - (2) For above ground installations except where USE cable emerges from the ground and is terminated in an enclosure at an outside location and the cable is protected in accordance with 300.5(D).
 
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pattenp

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Been there and done that with our county electrical inspector and was told USE was not to enter the building.
 

wyliesdiesels

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I don't own a code book. I just do what the inspector tells me to. :thumbup:

What I find interesting about this and the comments following is that sometimes you're quoted as saying this or that is required by code or not required by code. Then u say u don't own a code book and just follow what the inspector tells you to do. So if an inspector told u to do something that's not code how do u know its not and how do u show them without a code book if you just follow what the inspector tells u to do? Seems contradictory to me!

You've also said that you bet an inspector would allow USE inside and check with them even though code does not allow it. You even argued with the code but admitted that u don't have a code book to check and see what it says. Then pattenp posted the code and u still insisted that the OPs inspector might still allow it. This seems inconsistent. We should either follow code all the time or not. And I've noticed inspectors don't follow code all the time either which is annoying!
 

GTO

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What I find interesting about this and the comments following is that sometimes you're quoted as saying this or that is required by code or not required by code. Then u say u don't own a code book and just follow what the inspector tells you to do. So if an inspector told u to do something that's not code how do u know its not and how do u show them without a code book if you just follow what the inspector tells u to do? Seems contradictory to me!

You've also said that you bet an inspector would allow USE inside and check with them even though code does not allow it. You even argued with the code but admitted that u don't have a code book to check and see what it says. Then pattenp posted the code and u still insisted that the OPs inspector might still allow it. This seems inconsistent. We should either follow code all the time or not. And I've noticed inspectors don't follow code all the time either which is annoying!

I was thinking the same thing.
How can you interpet,without a code book?
 

Speedy Petey

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It's called sarcasm boys. I own about four current code books and many older versions, plus UL White Book and links to hundreds of local codes in other areas.

IMO this IS NOT a black and white case of code legal or not. It is open to interpretation. EVERYONE in my area uses URD for service entrance when conduit is used. And EVERY inspector allows it, from several different firms.
If this bothers so many of you then I suggest you call the NYS board of electrical whatever and complain.
 

wyliesdiesels

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Your sarcasm was not stated nor implied! So we thought u were serious! Every inspector I've talked to or dealt with has said no! So go figure! I'm not in NY so I won't go there. I guess if we wanted, we could break down the words to try and come up with a black and white interpretation!
 

Aceman

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IMO this IS NOT a black and white case of code legal or not.

I shouldn't be the one to tell you, but just because an inspector doesn't call you on it doesn't make it "code" legal or a "gray" area.

It's the same with #2 AL used for 100 amp feeds on anything other than dwelling services. Sure, some inspectors won't call you on it because they think it's okay but that doesn't automatically make it open to "interpretation".

It IS black and white.

http://forums.mikeholt.com/showthread.php?t=148151
http://forums.mikeholt.com/showthread.php?t=131663
http://forums.mikeholt.com/showthread.php?t=129322
 

walrus

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Their are inspectors in Maine that would let URD go a few feet into a panel, it used to be common place but not so sure now? The older inspectors are gone and a new regime is i n place
 
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