I created these cable troughs to lay alongside the track on my 7mm/ft or 1/43 scale O gauge model railway. These are a common sight all across the railway network carrying essential cables for signals and other systems.
There are files with lengths of 1 to 8 trough sections and each section represents a length of 1m on the real railway.
I have also created a set of open troughs with separate lids that can be combined with these closed which you could model with the cables visible.
They can be downloaded separately here:https://www.cgtrader.com/3d-print-models/hobby-diy/other/lineside-cable-troughs-7mm-scale-o-gauge-model-railway-open
Sliced in Lychee and printed on my Anycubic Photon Mono X using Siraya Tech fast resin.