Having my first senior moment here
- Thread starter laketime
- Start date
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cadpoint
Senior Member
- Location
- Durham, NC
50 amps vs the square footage on the recpt. only? :grin:
Senior moment, I can't wait!!!
Senior moment, I can't wait!!!
- Location
- Chapel Hill, NC
- Occupation
- Retired Electrical Contractor
Something sounds wrong but you would use 240volts.
Go to Mike Holts Site and click on the residential load calculator.
laketime
Senior Member
- Location
- Simi Valley, CA
Make sure you're not using the optional method, it will usually come out lower.
You must be missing something. The calc in the back of the NEC is for a 1500 sqft house and it shows 77.5 amps.
The nice thing about senior moments is that now, at least, you have something to blame it on.
You must be missing something. The calc in the back of the NEC is for a 1500 sqft house and it shows 77.5 amps.
The nice thing about senior moments is that now, at least, you have something to blame it on.
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laketime
Senior Member
Awesome spread sheet thanks! Just did it through there and it came out to 71amps.
laketime
Senior Member
- Location
- Chapel Hill, NC
- Occupation
- Retired Electrical Contractor
Must not have a/c and everything is gas. Remember 100 amp is the smallest you can install for a service on a residence art. 230.79
mcclary's electrical
Senior Member
- Location
- VA
laketime
Senior Member
Yeah no a/c everything is gas. No need to worry POCO will only pull underground to a 200 amp service minimum.
- Location
- Chapel Hill, NC
- Occupation
- Retired Electrical Contractor
So is the breaker the main disconnect?
mcclary's electrical
Senior Member
- Location
- VA
Yes, if there's a breaker.
I'm saying you could have a disconnect rated at 100 amps, install 60 amp fuses, and it would be legal service.
The wording may not match the intent, but that's what I read
(on a side note, I pretty much do a 200 min.)
- Location
- Chapel Hill, NC
- Occupation
- Retired Electrical Contractor
I don't buy it- I know Bob and other's do but IMO it says disconnect. It doesn't say the disconnect enclosure or buss. To me the fuses would be the disconnect and would violate this article.
Now what about the 6 breaker rule? Not sure but I would still install 100 amp wire. I don't think you will find many inspectors to buy into this interpretation. I don't.:grin:
mcclary's electrical
Senior Member
- Location
- VA
Nor would I try
but that's what it says. And a fuse alone is not a disconnecting means.
Volta
Senior Member
- Location
- Columbus, Ohio
The OCP is permitted to be adjacent to the switch, need not be integral 230.91. Just need a 100 amp switch, next to a cut-out cabinet
.Nor would I try
but that's what it says...
Me either, but I'd debate it here . . . :roll: :grin:.
I'm back but I can't stay. I found my teeth ok. They were in the bread box. Thing is I misplaced my glasses and can't really see well enoughto type a good answer to the OP's question. Be right back after I find my glasses.
jaylectricity
Senior Member
- Location
- Massachusetts
- Occupation
- licensed journeyman electrician
Why didn't you include any square footage? I just did it with your square footage times 3 and the other loads you mentioned and came up with 107 amps.
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