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Old 04-16-2009, 11:44 PM   #1
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Service entrance power splits or doubles?


Hello,

I am in the process of connecting to the local utility here in Ontario Canada as a self builder. I have had the trench dug and Big "O" plastic pipe installed up to a post from the ute pole in the lane for them to pull the 200 amp cable through.

My question is this.

I would like to have power at the post for a trailer maybe or even an electric car someday and for this to be a permanent fixture at the post and have a second feed to the future house further up the lot.

I have been told the way to do this is to have a double lugged meter base and run one feed to a shut off on the post and then to a load centre on the post then out to a receptacle for whatever off the post and the other meter lugs would be for the run to the house and the load centre or panel there.

I thought I had it sorted out and was in the process of sourcing the boxes for ESA approval prior to buying the permit but was thrown by someone that said 2 200 amp feeds equals 400 amps which is not what the utilty is providing. Does this mean I should consider the 200 amp service as 2 100 amp feeds from the lugs? I must confess Im a bit confused. I must be showing I'm not an electrician but here we can DIY as it gets inspected anyway before service gets installed so its just a question of painting by numbers with ESA (Electrical Safety Authority ) first.

Thanks for any guidance!

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Old 04-16-2009, 11:50 PM   #2
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Service entrance power splits or doubles?


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Originally Posted by Limehand View Post
Hello,

I am in the process of connecting to the local utility here in Ontario Canada as a self builder. I have had the trench dug and Big "O" plastic pipe installed up to a post from the ute pole in the lane for them to pull the 200 amp cable through.

My question is this.

I would like to have power at the post for a trailer maybe or even an electric car someday and for this to be a permanent fixture at the post and have a second feed to the future house further up the lot.

I have been told the way to do this is to have a double lugged meter base and run one feed to a shut off on the post and then to a load centre on the post then out to a receptacle for whatever off the post and the other meter lugs would be for the run to the house and the load centre or panel there.

I thought I had it sorted out and was in the process of sourcing the boxes for ESA approval prior to buying the permit but was thrown by someone that said 2 200 amp feeds equals 400 amps which is not what the utilty is providing. Does this mean I should consider the 200 amp service as 2 100 amp feeds from the lugs? I must confess Im a bit confused. I must be showing I'm not an electrician but here we can DIY as it gets inspected anyway before service gets installed so its just a question of painting by numbers with ESA (Electrical Safety Authority ) first.

Thanks for any guidance!
Sounds like you basically want to install a small service panel at the meter pedestal. You can get a meter / panel combo is you want to, or a separate panel. Then you feed the house like a sub panel. You can run as many sub panels as you like, you can feed them each at 200A if you want, but if you only have 200A service from the powerco, then you can never use more than 200A.

Jamie

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Old 04-17-2009, 08:20 AM   #3
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Service entrance power splits or doubles?


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Originally Posted by Limehand View Post
I thought I had it sorted out and was in the process of sourcing the boxes for ESA approval prior to buying the permit but was thrown by someone that said 2 200 amp feeds equals 400 amps which is not what the utilty is providing. Does this mean I should consider the 200 amp service as 2 100 amp feeds from the lugs?
You are/were on the right track. There are many ways to accomplish what you want to accomplish. Personally, I would do it differently, but what you are doing will work as long as the local code officials will accept it.

So tell the person that told you you were creating a 400 amp service to hush, and go back to figuring out your sources. 200 amp service is what it is. Sourcing your proposed arrangement so that any part of it can handle 200 amps is okay, may be a good thing. May be expensive overkill also. As long as your local electrical inspector is happy, you are fine.
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