Revit conduit tag and cable tray tag: size, type, and placement
How to tag conduits and cable trays in Revit: what a conduit size tag and cable tray tag carry, where they go, and how RayCAD approaches placing them automatically.
A conduit tag answers a short question. How big is this run, and what is in it? A cable tray tag answers the same question for a wider element. Both are simple to read and tedious to place, because a ceiling plan can hold dozens of parallel runs.
What the tag says
Conduit tags carry the conduit size, and often the type. Cable tray tags carry width and depth, and sometimes the service. Offices that coordinate with other trades add an elevation to a tag, so installers can see where a run sits relative to the duct and pipe around it.
Where the tag goes
Runs of conduit and tray are long, so the tag is not placed once and forgotten. The reader needs the size at the start of a run, again wherever the size or elevation changes, and at a readable spacing on a long stretch. Parallel runs need a tag block that keeps the rows in the same order as the conduits, with short leaders that do not cross.
How RayCAD approaches it
RayCAD's tagging method follows the same sequence on every discipline.
- Tag where information changes. A size, an elevation, a direction. Not every segment. See information-based tagging.
- Handle parallel runs as a bundle. One tag block with a row per run, and leaders that stay square to each run. The same approach is described on the piping tagging page.
- Read the real tag size. Tags with more than one row get measured before they are placed, so tall tags do not overlap. See intelligent placement.
- Use your tag families and your standard. See using your own tag families.
- Flag what cannot be placed. Anything RayCAD cannot place cleanly goes to the review panel.
RayCAD tags HVAC and piping today, and conduit and cable tray tagging is coming soon. To have us prioritize it, contact us at founder@raycad.in.
Frequently asked questions
What goes on a Revit conduit tag?
Most conduit tags show the size, such as 25 mm or 1 inch, and often the type. Some offices add the circuit or system, or an elevation for runs that change height.
What goes on a cable tray tag?
Cable tray tags usually show the width and depth, and sometimes the tray type or service, such as power or data.
Why not tag every conduit segment?
A tag on every segment clutters the sheet. A reader needs the size once at the start of a run, and again wherever the size or elevation changes.
Can I read the conduit size from the model?
Yes. Revit stores conduit and tray sizes as parameters, and a tag family reads them. An automated tool takes the values from the same place, so the tag always matches the model.