2/0 AL SEU in 1 1/2” PVC? - Electrician Talk - Professional Electrical Contractors Forum
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Unread 02-09-2020, 10:54 PM   #1
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Default 2/0 AL SEU in 1 1/2” PVC?

Newly licensed electrician here. I’ve looked in the code book and I cannot find anything against it.

I have a customer who wants their 150 Amp Service replaced, not upgraded. I’m replacing everything except I want to avoid replacing the schedule 80 1 1/2” PVC conduit from the bottom of the meter pan down to an LB into the house. They sleeved the old service in this as a deck is built around it and is prone to damage.

The 1 1/2” PVC looks brand new and in good shape just to replace it would be a &@“$). They put 2/0 AL SEU in the PVC rather than running individual conductors.

Can they do that? Asking for a friend, just because if I can come behind and do the same it makes my day a hell of a lot easier.
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Unread 02-10-2020, 12:07 AM   #2
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If all you are replacing is from the meter up and nothing wrong with the 2/0 SEU, I would leave that alone and just replace the meterbase and whats above.
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Unread 02-10-2020, 07:39 AM   #3
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Normally 150A services still use 2" conduit. 1-1/2" is a very odd size for a service, most are either 2" for 150-200A or 1-1/4" for 100A.

I normally run 4/0 SEU cable thru 2" for 200A services. It's a pain getting it thru the LB, but it works. 2/0 SEU cable isn't that much smaller, so I have a feeling it might be a bitch to get thru a 1-1/2" LB.

So the question is what will be harder, getting the cable thru the small existing pipe and LB? Or replacing it with 2"?

Or can you run XHHW conductors?
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Unread 02-10-2020, 09:08 AM   #4
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I agree that it is tight I would bet that if you went to southwire and got the am of the cable that it would not be compliant. You could replace the seu with 2/0 xxhw and it would be okay especially if you downsize the neutral
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Unread 02-10-2020, 09:13 AM   #5
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Actually, I am incorrect. Since it is a cable it is treated as 1 conductor so it is compliant however check he LB for the largest conductor allowed.
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Unread 02-10-2020, 09:22 AM   #6
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As Hack said, 1 1/2" is an odd size for services. I do not believe they make an off set PVC connector or a PVC service head for it. Does NJ allow Aluminum inside the house? Some places here only allow it on the outside.

If you do not want to replace the 1 1/2" PVC and the run is short can you use #1 copper SEU? Assuming you have to change the service entrance feeder.
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