Wire to run to a disconnect?

[tom-ky]

I plan on putting a disconnect on the garage to feed a barn. The barn already has #2 wire running to it , previously had an old farm house where garage is now. Still have that wire buried and will hook to disconnect. I know SE-R can be ran thru the walls without using conduit. Is there anything else that is suitable for this application?

 

[ard]

What are you asking?

 

[tom-ky]

What are you asking?

What type wire is ok to run from breaker box thru stud wall to put a disconnect on outside of garage? I know SE-R cable is approved for that use but what else is?

Hope I made the question clear.

 

[ard]

Ah, OK. So you will dig up the old buried #2, put it into conduit (for the part that runs out of the ground) and turn it up the side of the building into a junction box (or disconnect)- you want to know what you can run from the panel into this junction. (note a splice/junction is fine, dont need a disconnect- the panel in the barn will be the disconnect,)

So this new wire will be entirely inside the building then maybe into a box on the exterior wall....

So SE-R or just NM would be fine I think

 

[sberry]

Since there is a breaker it is the disconnect. But this isn't the right wire for underground.

 

[tom-ky]

Since there is a breaker it is the disconnect. But this isn't the right wire for underground.

Never said it would be underground. This would go from 200 amp panel box to a 100 amp disconnect, from there I have underground wire in conduit.

 

[ard]

Never said it would be underground. This would go from 200 amp panel box to a 100 amp disconnect, from there I have underground wire in conduit.

To be fair your original post was very unclear...for all we knew the reference to 'the application' was that there was SER buried out to the barn and you wanted to use that....

 

[tom-ky]

To be fair your original post was very unclear...for all we knew the reference to 'the application' was that there was SER buried out to the barn and you wanted to use that....

Sorry if this part was not clear.

I know SE-R can be ran thru the walls without using conduit. Is there anything else that is suitable for this application?

 

[AntonLargiader]

Various individual conductors in conduit (THHN/THWN, MHF, etc.) would work, or MC in a large size. But the SER will be the cheapest and easiest. 2-2-2-4 SER gives you 90A so you should decide if 90 is OK or if you really need the 100.

What exactly do you have running to the barn? How many conductors of what size? And how far is it to the barn?

 

[wyliesdiesels]

What loads do u have in the barn?

 

[pattenp]

SER is the best option for the run from the panel to the disconnect box without using conduit. The install methods for SER are the same as NM (Romex), so just be sure it's not exposed to possible physical damage.

 

[tom-ky]

What loads do u have in the barn?

Heaviest load would be a welder on a 50 amp circuit with maybe some lights running at the same time.

 

[AntonLargiader]

Sounds like a typical 90A application. You could probably get away with 60 but you have the wires for 90... except...

... if it's a permit job, they'll want to see four wires to the barn and you probably only have three.

 

[wyliesdiesels]

Sounds like a typical 90A application. You could probably get away with 60 but you have the wires for 90... except...

... if it's a permit job, they'll want to see four wires to the barn and you probably only have three.

Whether its permitted or not it should be 4-wires unless done before 2008 code cycle...

 

[AntonLargiader]

Or you could just say, whether it's permitted or not it should be 4-wire.

Today I bought parts to upgrade my shop oven to 4-wire. It's the way of the future and it's better.

 

[tom-ky]

I know it would be more money but even thought about using THHN in ENT conduit. Anyone see and issue with that? Thought it might be a littler easier to work with.

 

[AntonLargiader]

Not sure how that would be any easier than SER but that's up to you. The way I read it, ENT needs the same protection as SER.