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So for one of my projects, I had to create cross sections of the cable tray and designated each cable’s source and load by using a legend. It was super tedious but it was the only way to see each cable in the tray and indicate spacing, dividers or waterfalls. We did not have to actually model each cable as I think the only way is to show conduit and pretend it’s cable. I only did that once for medium voltage cables that were about 3.5” in diameter.
The cross sections were drawing with detail lines inside the cable tray so I had to make sure the sections were pinned in place. We had signal cables, 120/208v power and 480v on a single tray with dividers. It was too much to model so we drew it to scale using detail lines.
I could send you the file iam working on it, its a LV room for a building and there are a lot of tray and cables, I am desperately need any recommendations to make the section and filling ratio with revit. Just type your mail to send it
I get made fun of during clash detection sessions until I explain why. Then the room gets quiet and there’s always the one piping guy that goes “so I can pass through your cable tray then?” 😐 no stay OUT of my tray space!!!! 🤦🏻♂️
Usually around hallways, but the last 20-30 feet to the outlet in each room is typically done using J-hooks or some type of hanger. It’s usually because trying to get a straight shot of cable tray into the room is tough due to ductwork and piping being in the way. Most j hooked can hold about 30 or so cables so it’s sufficient to serve the room with just hooks.
Sometimes the template that the project is created from does not have cable tray loaded. I guess I should start a family download center of the stuff I talk about
Hello and thank you for this very good exlanation. Just a question: why do you make the cable tray thiker if you can add 6 inches as clearance in the familie? Is it because revit can not detect clashes with clearance? Thanks again
Our cable tray family does not let us add clearance space. If you found a way to do so, that would be great info to have! My workaround has been to make the tray thicker to include the clearance in its dimension.
Oh yes you can certainly match the slope of the roof. If you draw in section view, you’ll find that you can create any angle in your bends provided you leave enough space for a fitting to be auto generated.
Thank you for the information. Is there a way that you can do auto cable tray if you click one tray then click another cable tray that are seperated by a certain distance and they would connect automatically avoiding clashes. Is there a plug in for Revit
That would be an amazing feature or plug in! I don’t know of any such product that would do that. I know from a distance you can Trim to connect to ends of conduit or cable tray but it will make a straight run without any consideration to what’s in the middle.
@@theelectricaldepartment No, Actually running the entire route in vertical. Do I then resort to rather using a manipulated Ducting tool? Thanks for the reply. :)
taught my brother-in-law in roughly...2 months. From no experience to an excellent level 1 Designer. To this day, he earns more than an entry engineer.
@@theelectricaldepartment yes... both of them... can we model only cable at cable tray, without conduit... is it posible..? Is the software allow us to do that..,? In real life, some time we just laying the cable without conduit... i am not talking about the code, just wondering if it is can be done.... thanks for answering my question...
No Revit does not model wires or cables. The wires you see on floor plans are just annotation and that’s the best we get. If we want to show fill capacity we simply show a detail section drawn in a drafting view. For large multi conductor cables I have shown conduit in the cable tray to simulate cables.
Americans will not have good quality engineering until they start using metric system... feet, inches, fractions, etc., are very inaccurate, and when using them on material length, the error is accumulated massively. Meter is a NATURAL, consistent and absolute unit... is coming from 100cm... and 1 cm is the diameter of a drop of water... Egyptians were using it... also the Royal Cubic of the Egyptians comes from Meter/Centimeter... then relationship between cubic meter to water weight/kgr... etc Setting AutoCAD or Revit in millimeters means that every unit of error if any, would be a millimeter, and not an Inch (25.4 mm)...
