#Concrete encased duct bank full

Choose the rectangular chain of ref.lines and the main path and click Create Solid Form. The common duct bank from the service yard to the building has up to 20 - 4' conduit (incl spares)in five groups of 4s with 24' spacing in between and 18' cover. Firs we need to create a rectangular sweep with the main encasement shape. 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. 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. 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. 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. Once all the runs of conduit are in place and properly connected, the crew fills the trench with cement and the ends of the pipe are directed into and terminate in approved electrical devices or boxes.As you may have noticed in the illustrations I have made my rig aligned to the center of one of the side ducts. Solvent cements are not required to join the sections, and no formwork, steel reinforcement, or concrete work is required on straight duct bank runs. Once more, CANTEX PVC Pipe Solvent Cement needs to be applied with a dauber in between each run.Ĥ. By contrast, the RED-E-DUCT Precast Electrical Duct Bank System consists of electrical conduits encased in engineered, prefabricated concrete sections, arriving at the job site ready to install. Once again, the entire installation process needs to be repeated for every 10 or 20 feet, depending upon the length of the conduit.ģ.

#Concrete encased duct bank full

See the CANTEX Full Product Line Catalog for determining the NEC 70 spacer requirements for the necessary trade size of the spacers and the required separation space. The rows of CANTEX PVC Intermediate Spacers are connected for every row of pipe. The amount of spacers coordinates with how many rows of conduit are being installed. Once the trench is completed, CANTEX PVC Base Spacers must be placed in rows in the trench. The process begins with the crew digging the trench.Ģ. Once again, the process for encasing Direct Burial and Encased Burial PVC Utility Duct in cement is basically the same as the cement encasement process for Schedule 40 and 80 PVC Pipe.

Once all the runs of PVC DB Conduit are in place and properly connected, the crew fills the trench with dirt.ĭB Direct Burial & EB Encased Burial Cement Installation

This process is repeated every 10 to 20 feet, depending upon the length of the conduit.ĥ. The pipe is twisted slightly to secure it. Once the pipe is smooth, the correct type of CANTEX PVC Solvent Cement gets applied to the inside of the belled end and the outside of the spigot or “straight” end of the conduit with a dauber.Ĥ. If the pipe has been cut, a reamer tool must be used to remove burrs or debris before cementing. In between each run of pipe, the belled end of the conduit gets cemented to the straight end. A crew begins by digging a trench for the conduit.Ģ. Consequently, the ends of the DB PVC Conduit runs are directed into and terminate in approved electrical devices or boxes. For example, smoother select fill dirt would be used as back-fill and there are no above-ground applications for Direct Burial PVC Conduit. DB Direct Burial PVC Utility Duct InstallationĪlthough the direct burial installation for DB PVC Utility Duct is very much the same as it is for Schedule 40 and Schedule 80 PVC Pipe, there are some differences in back-fill requirements and performance capabilities. The guideline covers concrete encased duct banks and manholes for primary (medium voltage) power distribution cables and telecommunications cables.