I should have known better, network engineers don't work on the physical
infrastructure very much anymore - memories of sitting on concrete floors
crimping cable ends in to many IXPs :-)

If you never seen or installed ENT Electrical Nonmetallic Tubing
Conduit, also known as "smurf tube" -- here is a new YouTube video of
someone installing a smurf tube between an external DEMARC and internal
distribution point for his fiber connection.

https://www.youtube.com/watch?v=NUCe9lAWY4U


In the U.S. - ENT is UL listed as electrical conduit and can be used in
most residential (and some commercial) runs.  Commonly used for
low-voltage and fiber runs in the US.  I'm not an expert on other
countries wiring codes.

ENT is not the same as in-rack wiring management products (i.e. the
split-wall plastic wire holders).