Gutter Sizing

[titan1021]

I'm trying to properly size a gutter for a service. I will have 350mcm coming into the gutter from the utility company, then a set of 2/0 and #2 conductors spliced and in the gutter. This is a residential installation. I'm not having much luck determining the size each of the three different conductors would be used to make the calculation. Is there a table somewhere? or is it listed somewhere? If someone could point in the right direction it would be most appreciated. I've been through many code sections but can't seem to find what I'm looking for.

Thanks

 

[chris kennedy]

Sounds like you are trying to size a metal wireway. Take a look at 376.23 and 376.56.

Be aware that the minimum size per T312.6(A) may prove to be difficult to work with.