Parallel Feeder...

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That is interesting Don. The text of the Code says "conductors as listed" parallel arrangements are not listed. But this is not the first panel statement that suprised me.
 
RB1 said:
That is interesting Don. The text of the Code says "conductors as listed" parallel arrangements are not listed. But this is not the first panel statement that suprised me.
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"As listed" is the reason I have the veiw it does not allow parallels.

I wonder how it would play out in a court?
 
You state that the customer "wants" a 400-amp service. Has a calculation been done that substantiates the NEED for a 400-amp service? In this area the utility requires that a 400-amp service be metered with "CT's" (Current Transformers) rather than a standard meter. This requires the installation of a 36" X 36" X 18" CT Cabinet on the exterior of the house. When most customers see this monstrocity that must be installed on their home they will go to almost any length to avoid needing a 400-amp service. I have seen people switch from heat pumps to oil heat to reduce the calculated load to the point that a smaller service was adequate.
 
haskindm said:
You state that the customer "wants" a 400-amp service. Has a calculation been done that substantiates the NEED for a 400-amp service? ...
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From a phone conversation with the HO, I found out that at this time he is out of breaker "real estate", so more amperage is needed.

I am scheduled to see the HO tomorrow morning.
 
Needing additional breaker spaces does NOT mean that a larger service is needed. Do a load calculation and I would almost bet you that all that the customer needs is a sub-panel installed. It takes a very large all-electric residence to require a 400-amp service.
 
haskindm said:
Needing additional breaker spaces does NOT mean that a larger service is needed. Do a load calculation and I would almost bet you that all that the customer needs is a sub-panel installed. It takes a very large all-electric residence to require a 400-amp service.
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Thats my opinion as well. He did mention that someone else had suggested a sub-panel as well. That is more than likely what will happen.

I'll keep this post updated.
 
What I Found...

What I Found...

There is a 42 cir. CH 200 amp in place now. There are at least two openings left. A sub-panel 8 cir fed with a 100 amp from the main service. There are three slots open in the sub.

The customer is going to change a cook top out from a 30 amp to a 40 amp required unit, no problem just pull new line for cook-top.

Replace double oven with a new double oven with Advantium(?). Told this required a separate circuit for the 120v portion. again no problem adding a circuit for the 120v.

I did find that the sub-panel was fed by a 2 conductor with bare ground (SE). All of the grounded and EGC are mixed all over the place in the sub.
 
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