![]() Choose the rectangular chain of ref.lines and the main path and click Create Solid Form. Firs we need to create a rectangular sweep with the main encasement shape. The standard conduit sizes shall be 2, 3, 4, and 5 for all conduits. Now, one we have our two (adaptive)point spline with a rig on one of the point which hosts profiles for future sweeps we can start creating forms. Underground concrete encased electric conduit duct banks shall consist of Type DB-60 polyvinyl chloride (PVC) conduit rated for 90C cable and meeting NEMA Standard TC-6 and ASTM F-512 for underground applications. Whatever, as a result by making my encasement family alined to the top right or top left duct center will enable me to draw this element from the plan view by just tabbing and snapping to the desired pipe center. The family of duct bank figures under B.310.(B)(2) are all drawn like concrete, but if you look carefully at the legend, it says Backfill (earth or concrete). 5.1 Generally, duct is shipped in self-supporting framed units designed for mechanical. There are some ad-hoc definitions out there on the inter-webs. I wouldnt call a single, concrete encased conduit a 'duct bank'. Moreover, not all the ducts banks have a duct running right on the center, for example in our case it is 4 ducts, however if it there were 5 ducts we could use the center one as an insertion/alignment. The duct bank may be concrete encased or direct buried. ![]() This is because in Revit MEP when you place a pipe or conduit and you use parallel pipes or ducts tool, usually you draw the parallel pipes from one side to another and it's always easy to snap to one side element rather than center. As you may have noticed in the illustrations I have made my rig aligned to the center of one of the side ducts.
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