oversizing service

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arnettda

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I came up with a load calculation for a single family dwelling at 352 amps. I could use a 400 amp service. Is there any benefit of going with say a 600 amp service?
 
I came up with a load calculation for a single family dwelling at 352 amps. I could use a 400 amp service. Is there any benefit of going with say a 600 amp service?


Not unless you know that there would be a large adition in the future and you will get the job for service upgrade.
 
I came up with a load calculation for a single family dwelling at 352 amps. I could use a 400 amp service. Is there any benefit of going with say a 600 amp service?

You might be able to charge more. the POCO may well put in a transformer that will be sized at 125A or so no matter what size meter you put in.
 
The loads for a dwelling aren't really considered to be continuous so you would use a 400 amp service as the minimum size. You could oversize the service/feeder conductor if you so choose but it would cost more.
 
400A is good

400A is good

It's true, there are no real benefits to oversizing that residential panel to 600A unless you see a future expansion. Plus, the formulas in the code already have allowed a good size increase on the sizing of the panel anyhow. 400A would be very adequate.
 
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