Wanted to hear experience or opinions from others when its typical to install direct buried vs concrete encased duct bank? As I understand it, this is not really a code issue but more of a design consideration for given application.
I'm looking at a project where new 34.5kV cable will be installed in conduit and run from a substation through an industrial site. Existing 34.5kV and 5kV duct banks on site are all concrete encased so plan was to follow-suit with new installation but was also interested in common approaches for applying each.
If conduits aren't crossing any road or drives with heavy vehicular traffic (IE inside of a Substation) is it typically to just install direct buried duct bank?
Do most industrial sites where there is vehicular traffic and other underground utilities ran typically have concreate encased duct bank?
I'm looking at a project where new 34.5kV cable will be installed in conduit and run from a substation through an industrial site. Existing 34.5kV and 5kV duct banks on site are all concrete encased so plan was to follow-suit with new installation but was also interested in common approaches for applying each.
If conduits aren't crossing any road or drives with heavy vehicular traffic (IE inside of a Substation) is it typically to just install direct buried duct bank?
Do most industrial sites where there is vehicular traffic and other underground utilities ran typically have concreate encased duct bank?
