Cable Management / Tray Fill Calculations

Cable Management / Tray Fill Calculations

angelo.alomar
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Cable Management / Tray Fill Calculations

angelo.alomar
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I am currently working on a project using Revit 2018. We are trying to find a way to calculate cable tray fill without having to export out of Revit. I have been scouring the internet trying to find an add-in or Dynamo script that will be able to provide the calcs. We would need to know which trays will be overloaded. The cable trays can be subdivided into sections and would let us know which cables are in each section. I am confident that we can deliver a cable schedule for our client because I feel like Revit would be able to do the calculations with the proper scheduling. The tray fill would aid in our design greatly... Any advice would be greatly appreciated...  Thank you.

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pawel.romaniuk
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Hello @angelo.alomar

 

What kind of apps and Dynamo Scripts have you found ... ? Are they completely useful? Without any examples developing something from scratch can be very time consuming. From other side please take a look at this Forum thread  - wire in cable tray  Calculating cable lengths from different pathways along cable tray networks

To be honest with you I can not imagine how Revit would handle this to meet your expectations. M

 



Pawel Romaniuk
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angelo.alomar
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Hi Pawel,

 

Thank you for the response. I had already read both of those prior to sending my question. Since they were older, I was hoping that someone had figured out a good method. I haven't had enough time with Revit to be able to generate the required schedules that you referenced in the linked message.

Here is my thought (what I have dreamed up)... Since Revit 2018 allows you to manipulate actual cable routes, the software "should" know a cable's location in the model (even as an annotation)...  I have done this as a test with cable trays that I designed in the model and then ran cables from various motors to an MCC using the circuiting and center line of the tray. My theory is that you could assign cables to all tray sections and fittings in the route by selecting the tray closest to the "To and From" pieces of equipment. The software would then use the database properties of the cable tray and each assigned cable's OD to calculate the percent of fill. Only certain parts of the tray sections (center or ends) would read the cables assigned to it so as to not tax the software by trying to manage a lot of data. Visually, as good as it would look, I don't require a 3D representation of the cable in the tray, just the calcs... That being said, if a cross section is required for show and you want to have it be "smart"; a detail view could be generated by the software by using a specific "section cut out tool" just for tray. All of the cable would be 2D and would be populated by design specifications provided by designed parameters. This is just what I imagine the Revit software will hopefully be capable of doing. Does this make sense or am I stretching the limits of the software? 

 

Thanks again, Angelo

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Message 4 of 4

Anonymous
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Hi,

 

We have just released our Automatic Cable Tray Sizing Add in for Revit - AutoCT!

 

It can automatically route circuits within the Revit model and assign them to cable trays or ladders.

It can also work for unconnected cable tray networks and we've recently added a feature to import/ export cable sizes from Excel.

 

Check it out here: https://apps.autodesk.com/RVT/en/Detail/Index?id=3834237931900748&appLang=en&os=Win64