My suggestion is similar to this one, only focusing on electrical rather than mechanical:
https://forums.autodesk.com/t5/revit-ideas/all-system-ed-elements-maintain-their-connection-after-be...
When designing electrical systems, most of the time we don't get the benefit of starting from scratch. The majority of our projects are renovations where we are reusing panels or parts of panels. When we do this, we generally need to show the panel's condition (i.e. a panel schedule) at various phases (i.e. demolition and new construction). The issue with using Revit to do this is that when a circuit element is marked for demolition, it loses any circuit information.
To show why this is necessary, my workflow for a typical reno project goes something like this:
- Get existing conditions from the site. This includes where existing panels are fed from, where receptacles/equipment is fed from, how many breakers are on the panel, etc.
- Figure out what stays and what gets demolished. Sometimes we'll demolish an entire panel, and sometimes it's just one circuit. Either way, we need to show what's attached to the panel at this stage and indicate which circuits are staying and going. At this point, we like to put a panel schedule onto a sheet showing the existing conditions, showing circuits to be demolished in bold.
- Design our new systems (place receptacles, equipment, etc. onto floor plans; schedule light fixtures; coordinate with user equipment; etc.).
- Figure out whether we can use the existing panels. At this point, we have a schedule that shows which circuits are being demolished, so we know which breakers we can re-use and whether we're removing enough load to add new load.
- Create panel schedules based on our new system design.
Currently, the only stage at which Revit will allow for system calculations is the new construction phase. In order to perform the first two steps of my workflow, I either need to hack something together in Revit or use our old method of panel schedules with Excel and AutoCAD.
Ideally, what I'd like to be able to do is create a panel schedule for the same panel at each phase of the project. Just like I can create a schedule of demolition and new construction light fixtures/doors/other things, I'd love to be able to create a schedule of system calculations to show the state of the electrical system at various stages.
