Sommerfeldt 387 RhB/FO Cross span kit
Cross span kit including master for max.
Width 215mm and 5 overhead wire suspensions.
For extension or installation with conical ends SBB-cross span #306/301 is recommended. If you want to insulate the tracks electrically, you should use hangers #179.
In this case you need to replace the steady span by some twine or appropriate material.