SEU cable question

[strawburner]

Is seu cable rated for underground applications in conduit. I have never done it but did see it direct Buried one time which I did not think was code compliant according to NEC.

I have a job where I need to run from the panel across the attic and then transition to underground in conduit.

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[petersonra]

Is seu cable rated for underground applications in conduit. I have never done it but did see it direct Buried one time which I did not think was code compliant according to NEC.

I have a job where I need to run from the panel across the attic and then transition to underground in conduit.

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I think SEU is just a variant of SE and can only be used above ground.

USE cable is OK for UG.

I get all these acronyms confused though.

 

[mopowr steve]

So what does the U in SEU stand for?
I never thought is was allowed for underground.

U in USE stands for underground service entrance.

 

[Smart $]

Uninsulated is my best guess.

 

[infinity]

So what does the U in SEU stand for?
I never thought is was allowed for underground.

U in USE stands for underground service entrance.

Don't know SER is SE cable round, SEU could be U shaped?

 

[Smart $]

Uninsulated is my best guess.

Got to thinking about that post. Some readers may be scratching their heads... :huh:

I'm referring to the grounded conductor being bare with strands wrapped around the other two insulated conductors. Yes, the cable has an overall insulating jacket, but under most definitions for insulated conductors, a cable's jacket does not qualify as conductor insulation.

 

[Little Bill]

I was told (corrected) by my SH manager that SER cable isn't necessarily a 4-wire cable. I always associated SER with 4-wire. But SER can be 3-wire. He said that SER was "service entrance-round". SEU is flat and can be 3 or 4 wire, same use as SER. He didn't say (that I can remember) what the "U" stood for but in whole, SEU is just flat cable as opposed to SER that is round cable. Neither of which can be used underground, in conduit or not.

 

[jumper]

I believe U stands for unarmored. It is an old designation.

 

[Smart $]

I believe U stands for unarmored. It is an old designation.

Hmm.... interesting. Have you ever seen armored SE?

 

[jumper]

Hmm.... interesting. Have you ever seen armored SE?

Nope. I think it was a 1920s or such thing. I remember seeing some reference in maybe my 1923.

 

[480sparky]

U stand for 'style U'.

According to Southwire:

SEU Sample Specification: Cable shall be UL-listed Type SE, Style U, suitable for operation at 600 volts or less as specified in the NEC. Conductors shall be AlumaFlex™ aluminum alloy, weather resistant PVC jacketed, as manufactured by Southwire Company or approved equal.

 

[jumper]

SEU
Service Entrance cable (Type SE, Style U) (Unarmored).

http://www.southwire.com/ordering/glossary.htm