Can anyone identify a resource that can identify the difference between an underground conduit duct and an underground conduit duct bank? The issue comes up on a project that doesn't identify a group of conduits running underground within the same trench as duct bank. There is a separate plan detailing another area with duct banks that includes typical details for spacing and concrete. The group of conduits within the same trench are identified as underground conduits but the GC is trying to hold them to the standards of conduit duct bank. Any help you could provide would be much appreciated.