New house, 400 Amp service CT meter base

[ramsfield]

I am building a new house which will have a single 400 amp panel. The house is 170 feet from the transformer. Power will be supplied underground. I have been told by the utility that a CT meter base will be required and I will have to use atleast 350MCM from the transformer to the meter base, but they will not tell me the size to use to the house. This is located in Washington State.

Can I use 350MCM from the meter to the house?


Also, I want to bury the wire in coduit. What size conduit, at minimum, do I need to use?

 

[George Stolz]

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