buildingSMART Forums

How to categorise electric strikes, IDF panels, egress paths, and more?

A few objects which I’m not quite sure which IFC class they belong to - some perhaps straightforward, others a little less so. Some are also outside of my domain, so perhaps they are easy for others? Looking forward to your confirmations / best guesses?

  1. https://en.wikipedia.org/wiki/Electric_strike - my best guess is IfcSensor with PredefinedType of CONTACTSENSOR.
  2. https://en.wikipedia.org/wiki/Intermediate_distribution_frame - perhaps something under IfcFlowController?
  3. https://en.wikipedia.org/wiki/Panic_button - seems to be IfcAlarm, but what would the appropriate PredefinedType be?
  4. https://en.wikipedia.org/wiki/Reed_switch - I think it’s IfcSwitchingDevice with PredefinedType of CONTACTOR?
  5. Egress paths - Perhaps IfcBuildingElementProxy with PredefinedType of PROVISIONFORSPACE?
  6. Load bank https://en.wikipedia.org/wiki/Load_bank - No idea?
  7. Fire hydrant boosters https://allpumps.com.au/pumps-by-type/fire-hydrant-systems/ - Perhaps IfcCompressor with PredefinedType set to BOOSTER?
  8. Air pressure maintenance devices https://www.vikinggroupinc.com/air-pressure-maintenance-device-model-d-2 - No idea?
  9. Pipe sight glasses https://duckduckgo.com/?q=pipe+sight+glass&iax=images&ia=images - perhaps IfcDistributionChamberElement but with which PredefinedType?
  10. Pipe clamps http://www.clampingsolutions.co.za/wp-content/uploads/2013/02/Cofil-clamp3.jpg - Perhaps IfcDiscreteAccessory? Which PredefinedType should it have? It isn’t a mechanical fastener - since it is a clamp, not the bolts that hold the clamp together.
  11. Tundish https://en.wikipedia.org/wiki/Tundish - I think it’s a IfcPipeFitting with PredefinedType set to ENTRY, or an IfcWasteTerminal, but which PredefinedType applies?
  12. Vent cowl https://pipecowa.com/wp-content/uploads/2017/01/DWV-Insect-Proof-Vent-Cowls.jpg - not sure?
  13. Rainwater outlet filter cover https://static.roofingsuperstore.co.uk/u/prod/l/kf7800-1-leaf-filter-grill-47398.jpg - not sure?
  14. UV disinfection system https://www.lenntech.com/systems/uv/uv_disinfection.htm - uh, some form of filter? Not sure?
  15. VAV box https://en.wikipedia.org/wiki/Variable_air_volume - some form of IfcFlowController, but not sure which one, or which predefined type. Perhaps it’s a control damper?
  16. Access panels http://accesspanel.com/ - an IfcDoor? But we don’t put them in door schedules, if they are in the ceiling should they be IfcCovering with type CEILING?
  17. ATM machines, ticketing machines - Some form of electric appliance, so an IfcFlowTerminal subtype?
  18. Signage - they come in quite a few forms. Are they IfcFurniture or in some cases IfcCovering?